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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 1238. Отображено 193.

07-01-2010 дата публикации

RADIO TRANSMITTING APPARATUS AND RADIO TRANSMITTING METHOD

Номер: US20100002671A1

Автор: Takashi Iwai, Sadaki Futagi, Daichi Imamura, Atsushi Matsumoto, Yoshihiko Ogawa

Принадлежит: PANASONIC CORPORATION

A radio transmitting apparatus and a radio transmitting method wherein the interference between codes can be reduced and the degradation of preamble detection capability can be prevented. According to these apparatus and method, a signature table storing part (103) that stores a table including a plurality of signatures obtained by classifying the magnitudes of propagation loss levels into levels in accordance with the distances from a base station, associating preamble detection window widths with those levels as classified, and by circularly shifting the pattern of a detection window signature #n corresponding to a signature #n to generate a signature #n+1. A signature selecting part (104) selects, based on the magnitude of a propagation loss level outputted by a propagation loss level determining part (102), one of the corresponding signatures from the signature table storing part (103) at random. A RACH signal generating part (105) uses the selected signature to generate a RACH signal ...

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Номер записи: 1

26-04-2011 дата публикации

Wireless communication mobile station device, wireless communication base station device and CQI report method

Номер: US0007933287B2

Автор: Takashi Toda, Akihiko Nishio, Daichi Imamura, TODA TAKASHI, NISHIO AKIHIKO, IMAMURA DAICHI

Принадлежит: Panasonic Corporation, PANASONIC CORP, PANASONIC CORPORATION

Provided is a wireless communication mobile station device by which a throughput can be improved in multicarrier communication. In the device, a group control section (107) controls a subcarrier group, of which CQI is to be reported, among a plurality of subcarrier groups to periodically change, by following pattern information. For instance, the group control section (107) changes the subcarrier group whose CQI is to be reported, by frame or TTI (Transmission Time Interval). Furthermore, the group control section (107) specifies the subcarrier group whose CQI is to be reported, to an SINR detecting section (108) and a CQI generating section (109).

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Номер записи: 2

24-03-2020 дата публикации

Terminal and communication method thereof

Номер: US0010602428B2

Автор: Yoshihiko Ogawa, Seigo Nakao, Akihiko Nishio, Masayuki Hoshino, Daichi Imamura, Atsushi Sumasu

Принадлежит: Sun Patent Trust

A terminal and a communication method thereof whereby, even in a case of employing an asymmetric carrier aggregation system and further employing a MIMO transmission method for upstream channels, the error characteristic of control information can be prevented from being degraded. In the terminal, a transport signal forming unit forms transport signals by arranging, based on an arrangement rule, ACK/NACK and CQI in a plurality of layers. According to the arrangement rule, an error detection result is arranged, on a priority basis, in a layer that is different from a layer in which the channel quality information is arranged. In this way, the puncturing of CQI using ACK/NACK can be minimized, with the result that the error characteristic of control information can be prevented from being degraded.

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Номер записи: 3

04-02-2020 дата публикации

Integrated circuit

Номер: US0010555335B2

Автор: Yoshihiko Ogawa, Daichi Imamura, Ayako Horiuchi, Sadaki Futagi, OGAWA YOSHIHIKO, IMAMURA DAICHI, HORIUCHI AYAKO, FUTAGI SADAKI, Ogawa, Yoshihiko, Imamura, Daichi, Horiuchi, Ayako, Futagi, Sadaki

Принадлежит: SUN PATENT TRUST, Sun Patent Trust

A radio communication base station device can efficiently obtain a multiuser diversity gain from frequency scheduling while reducing the amount of a reference signal occupying an uplink. In the device, a grouping section divides a plurality of RBs (Resource Blocks) into a plurality of RB groups. An RB group control unit performs a control to change the correspondence relationship between the RBs and the RB groups with time. When the grouping section divides the RBs into the RB groups, the RB control unit performs a control to change a combination of the RBs included in each of the RB groups with time. A scheduling section performs a scheduling of allocating each of a plurality of mobile stations to each of the RBs in each of the RB groups according to the reception quality of the reference signal.

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Номер записи: 4

14-11-2017 дата публикации

Reception apparatus and reception method

Номер: US0009820274B2

Автор: Zhi Zhang, Ming Xu, Masayuki Hoshino, Daichi Imamura, Akihiko Nishio, ZHANG ZHI, XU MING, HOSHINO MASAYUKI, IMAMURA DAICHI, NISHIO AKIHIKO, Zhang Zhi, Xu Ming, Hoshino Masayuki, Imamura Daichi, Nishio Akihiko

Принадлежит: Sun Patent Trust, PANASONIC IP CORP AMERICA, SUN PATENT TRUST, Panasonic Intellectual Property Corporation of America

Method of scrambling signals, transmission point device, and user equipment using the method are provided. The method includes: sending an ID table to a user equipment through higher layer signaling, the ID table being a subset of the whole ID space and containing available IDs for the user equipment; notifying the user equipment an ID in the ID table to be used through physical layer signaling or UE specific higher layer signaling; generating a random seed based on the notified ID; initializing a scrambling sequence by the random seed; and scrambling the signals with the initialized scrambling sequence. The method of the disclosure, by combining physical layer signaling and higher layer signaling, may notify the used group ID and the blind detection space to a UE, wherein the blind detection for the UE is enabled and the signaling overhead is reduced.

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Номер записи: 5

31-07-2014 дата публикации

TERMINAL, BASE STATION, AND COMMUNICATION METHOD

Номер: US20140211737A1

Автор: Kazuki Takeda, Akihiko Nishio, Daichi Imamura, TAKEDA KAZUKI, NISHIO AKIHIKO, IMAMURA DAICHI

Принадлежит:

Provided is a terminal with which it is possible, in a heterogeneous cell network, to transmit a Periodic-Sounding Reference Signal (P-SRS) at a transmission bandwidth and power density necessary for carrying out both a process of selection of a transceiving participating base station and a process of frequency scheduling of a Packet Uplink Shared Channel (PUSCH). A terminal (300) comprises a receiving unit (301) which receives control information which includes information which denotes a P-SRS transmission parameter, and a transmission unit (303) which, using a transmission parameter which is included in the received control information, transmits a first P-SRS provided with a first bandwidth and a first power density at a first period, and transmits a second P-SRS provided with a second bandwidth which is narrower than the first bandwidth and second power density which is higher than the first power density at a second period.

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Номер записи: 6

08-03-2018 дата публикации

RADIO COMMUNICATION APPARATUS AND RADIO COMMUNICATION METHOD

Номер: US20180069667A1

Автор: Seigo Nakao, Daichi Imamura

Принадлежит:

Provided is a radio communication device which can make Acknowledgement (ACK) reception quality and Negative Acknowledgement (NACK) reception quality to be equal to each other. The device includes: a scrambling unit (214) which multiplies a response signal after modulated, by a scrambling code “1” or “e−j(π/2)” so as to rotate a constellation for each of response signals on a cyclic shift axis; a spread unit (215) which performs a primary spread of the response signal by using a Zero Auto Correlation (ZAC) sequence set by a control unit (209); and a spread unit (218) which performs a secondary spread of the response signal after subjected to the primary spread, by using a block-wise spread code sequence set by the control unit (209).

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Номер записи: 7

17-09-2020 дата публикации

RADIO COMMUNICATION TERMINAL AND RADIO COMMUNICATION METHOD

Номер: US20200296689A1

Автор: Yasuaki Yuda, Seigo Nakao, Ayako Horiuchi, Akihiko Nishio, Daichi Imamura, Kenichi Miyoshi, YUDA YASUAKI, NAKAO SEIGO, HORIUCHI AYAKO, NISHIO AKIHIKO, IMAMURA DAICHI, MIYOSHI KENICHI, Yuda, Yasuaki, Nakao, Seigo, Horiuchi, Ayako, Nishio, Akihiko, Imamura, Daichi, Miyoshi, Kenichi

Принадлежит:

Provided is a radio communication terminal which is capable of measuring quality in communication with a handover destination with high accuracy. The radio communication terminal is capable of communicating with a base station or a relay node, and includes: a receiver which receives control information including information relating to measurement of measuring quality of a neighbor cell; an extractor which extracts information on a subframe where the measurement should be performed, which is a subframe where only transmission of a signal from the relay node connected to the base station is performed, from the information relating to the measurement; a measurement section which performs the measurement, on a subframe basis, based on the extracted information on the subframe where the measurement should be performed; and a transmitter which transmits a result of the measurement to the base station or the relay node.

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Номер записи: 8

10-05-2012 дата публикации

METHOD AND SYSTEM FOR SETTING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM

Номер: US20120115521A1

Автор: Hui Tong, Ming Xu, Masayuki Hoshino, Daichi Imamura, TONG HUI, XU MING, HOSHINO MASAYUKI, IMAMURA DAICHI

Принадлежит: PANASONIC CORPORATION

A method and a system of setting up a reference signal in a radio communication system. The radio communication system includes a serving cell and a neighboring cell, and a mobile terminal of the serving cell uses the same temporal frequency resource so as to receive a serving resource block from the serving cell and receive an interference resource block from the neighboring cell. The method according to the present disclosure includes a step of setting up a user-specific reference signal in the interference resource block and a step in which puncturing is performed at same temporal frequency position as the temporal frequency position at which the user-specific reference signal is set up on the interference resource block of the serving resource block so as to prevent any signal from being transmitted at the punctured temporal frequency position. When the method and the system provided in the present disclosure are used and the interference power between cells is thereby measured, it ...

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Номер записи: 9

25-06-2009 дата публикации

RADIO COMMUNICATION MOBILE STATION APPARATUS AND RADIO COMMUNICATION METHOD

Номер: US20090161650A1

Автор: Daichi Imamura, Sadaki Futagi, Atsushi Matsumoto, Takashi Iwai, Tomohumi Takata

Принадлежит: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD

Provided is a mobile station capable of effectively reporting control information in RACH. In the mobile station, a signature selection unit (111) selects one of different code sequences as a signature according to inputted control information and a modulation unit (112) modulates a signature (code sequence). In a table provided in the signature selection unit (111), for control information ‘000’, CAZAC sequence #1 as a basic code sequence and a derived code sequence of shifts 0 to 7 derived from the CAZAC sequence #1 are set while being correlated to each other. The derived code sequence of shifts 0 to 7 of the CAZAC sequence #1 respectively correspond to signatures #1 to #8. Moreover, for control information ‘001’, CAZAC sequence #2 as a basic code sequence and a derived code sequence of shifts 0 to 7 derived from CAZAC sequence #2 are set while being correlated to each other. The derived code sequence of shifts 0 to 7 of the CAZAC sequence #2 respectively correspond to the signatures ...

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Номер записи: 10

19-11-2015 дата публикации

WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD

Номер: US20150333851A1

Автор: Atsushi Sumasu, Daichi Imamura, Ayako Horiuchi, Yasuaki Yuda

Принадлежит:

The transmission of a reference signal, such as a CSI-RS, is enabled while maintaining a power saving effect when performing inter-cell cooperative transmission/reception or the like in a plurality of cells. In order to realize inter-cell cooperative transmission/reception, a CSI-RS which is used for estimating the state of a spatial propagation path of a communication line is generated by a CSI-RS generation unit, and the CSI-RS is disposed in a predetermined subframe by a disposition unit and transmitted. At this time, when a frame has ten subframes #0 to #9, the CSI-RS is disposed in the subframes #4 and #9, which are subframes excluding the subframes #0 and #5 incapable of transmitting a CSI-RS and are subframes other than subframes capable of acting as MBSFN subframes when discontinuous communication (Extended Cell DTX) is performed so as to achieve power saving, and transmitted.

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Номер записи: 11

08-01-2013 дата публикации

Radio communication base station device, radio communication terminal device, and response signal allocation method

Номер: US0008351385B2

Автор: Daichi Imamura, Akihiko Nishio, Seigo Nakao, Sadaki Futagi, Tomofumi Takata, IMAMURA DAICHI, NISHIO AKIHIKO, NAKAO SEIGO, FUTAGI SADAKI, TAKATA TOMOFUMI

Принадлежит: Panasonic Corporation, PANASONIC CORP, IMAMURA DAICHI, NISHIO AKIHIKO, NAKAO SEIGO, FUTAGI SADAKI, TAKATA TOMOFUMI, PANASONIC CORPORATION

It is possible to provide a radio communication base station device, a radio communication terminal device, and a response signal allocation method which perform D-ACK and P-ACK resource allocation while maintaining a high use efficiency of the upstream line control channel of PUCCH or the like. When a plurality of CCE are allocated upon PDCCH transmission, PUCCH resources corresponding to odd CCE numbers are allocated for D-ACK and PUCCH resources corresponding to even CCE numbers are allocated for P-ACK among a plurality of CCE numbers which can be used.

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Номер записи: 12

03-01-2013 дата публикации

SEQUENCE ALLOCATING METHOD AND SEQUENCE ALLOCATING APPARATUS

Номер: US20130003686A1

Автор: Daichi Imamura, Takashi Iwai, Kazunori Inogai, Sadaki Futagi, Atsushi Matsumoto, IMAMURA DAICHI, IWAI TAKASHI, INOGAI KAZUNORI, FUTAGI SADAKI, MATSUMOTO ATSUSHI

Принадлежит: PANASONIC CORPORATION

A sequence allocating method and apparatus wherein in a system where a plurality of different Zadoff-Chu sequences or GCL sequences are allocated to a single cell, the arithmetic amount and circuit scale of a correlating circuit at a receiving end can be reduced. In ST201, a counter (a) and a number (p) of current sequence allocations are initialized, and in ST202, it is determined whether the number (p) of current sequence allocations is coincident with a number (K) of allocations to one cell. In ST203, it is determined whether the number (K) of allocations to the one cell is odd or even. If K is even, in ST204-ST206, sequence numbers (r=a and r=Na), which are not currently allocated, are combined and then allocated. If K is odd, in ST207-ST212, for sequences that cannot be paired, one of sequence numbers (r=a and r=Na), which are not currently allocated, is allocated.

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Номер записи: 13

20-04-2023 дата публикации

RADIO TERMINAL, RADIO BASE STATION, CHANNEL SIGNAL FORMING METHOD AND CHANNEL SIGNAL RECEIVING METHOD

Номер: US20230120645A1

Автор: Seigo Nakao, Daichi Imamura, Takahisa Aoyama

Принадлежит:

A base station is disclosed, including an information size adjusting section configured to adjust a size of control information based on a first basic information size of control information mapped on a user equipment (UE) specific search space in a first component carrier. The base station also includes a transmitter configured to transmit the control information mapped on the UE specific search space. A first determination method for determining the first basic information size is different from a second determination method for determining a second basic information size of control information mapped on a common search space in the first component carrier. The first determination method for determining the first basic information size is different from a third determination method for determining a third basic information size of control information mapped on a search space in a second component carrier that is different from the first component carrier.

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Номер записи: 14

19-04-2022 дата публикации

Base station device, terminal device and communication method

Номер: US0011310789B2

Автор: Seigo Nakao, Daichi Imamura

Принадлежит: Godo Kaisha IP Bridge 1

In a terminal, a control unit transmits a bundle response signal using a resource in a basic region of an uplink control channel in an uplink unit band of a unit band group when no error is detected in each of a plurality of pieces of downlink data of the unit band group, the uplink control channel in the uplink unit band being associated with a downlink control channel in a basic unit band that is a downlink unit band in which a broadcast channel signal including information relating to the uplink unit band is transmitted, and the control unit transmits the bundle response signal using a resource in an additional region of the uplink control channel when an error is detected in each of the plurality of pieces of downlink data.

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Номер записи: 15

07-11-2017 дата публикации

Terminal device, wireless transmission method, base station device, and channel estimation method

Номер: US0009813263B2

Автор: Takashi Iwai, Daichi Imamura, Akihiko Nishio, Yoshihiko Ogawa, Kazuki Takeda

Принадлежит: Panasonic Intellectual Property Group of America

The present invention adopts a configuration such that when cooperative reception by a plurality of base stations is not applied, a reference signal sequence determined from a selection baseline value corresponding to the number of a sequence group allocated to a cell belonging to the device in question is selected from among a plurality of selection baseline values as a reference signal sequence for non-cooperative reception, whereas when cooperative reception by a plurality of base stations is applied, a reference signal sequence determined from one or more intermediate selection baseline values set between two adjacent selection baseline values corresponding to the number of a sequence group allocated individually to a terminal device is selected among the plurality of selection baseline values as a reference signal sequence for cooperative reception differing from the reference signal sequence for non-cooperative reception.

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Номер записи: 16

02-02-2012 дата публикации

RADIO COMMUNICATION DEVICE AND ERROR CORRECTION/ENCODING METHOD

Номер: US20120028684A1

Автор: Kenichi Miyoshi, Megumi Ichikawa, Daichi Imamura, Seigo Nakao, Yuichi Kobayakawa, Yoshiko Saito, Kenichi Kuri, Alexander Golitschek Edler Von Elbwart, MIYOSHI KENICHI, ICHIKAWA MEGUMI, IMAMURA DAICHI, NAKAO SEIGO, KOBAYAKAWA YUICHI, SAITO YOSHIKO, KURI KENICHI, GOLITSCHEK EDLER VON ELBWART ALEXANDER

Принадлежит: PANASONIC CORPORATION

Provided is a radio communication device which can obtain an error ratio characteristic equivalent to the one obtained by using a tail bit, without using a tail bit in the error correction and encoding. The device includes: a blocking unit () which adds a bit indicating an error detection result in a CRC unit () to control data (a bit string) so as to constitute an encoded block and outputs the encoded block to an encoding unit (); and the encoding unit () which corrects and encodes the encoded block. The blocking unit () forms an encoded block by a bit string of control data and a probability deviation existence bit added to the tail of the bit string. 1. A radio communication apparatus used in a radio communication system adopting Viterbi decoding , the apparatus comprising:a blocking section that forms a coding block with a bit sequence and probable deviation bearing bits added to a tail of the bit sequence; anda coding section that performs error correction coding on the coding block using a shift register.2. The radio communication apparatus according to claim 1 , wherein the coding block comprises a control channel coding block.3. The radio communication apparatus according to claim 1 , wherein the probable deviation bearing bits show whether or not there is received data.4. The radio communication apparatus according to claim 1 , wherein the radio communication apparatus comprises a radio communication base station apparatus or radio communication mobile station apparatus.5. An error correction coding method in a radio communication system adopting Viterbi decoding claim 1 , the method comprising steps of:forming a coding block with a bit sequence and probable deviation bearing bits added to a tail of the bit sequence; andperforming error correction coding on the coding block using a shift register. The present invention relates to a radio communication apparatus and an error correction coding method.In mobile communication, convolutional codes are proposed ...

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Номер записи: 17

31-10-2013 дата публикации

RADIO COMMUNICATION DEVICE AND RESPONSE SIGNAL SPREADING METHOD

Номер: US20130286975A1

Автор: Seigo Nakao, Daichi Imamura, Katsuhiko Hiramatsu

Принадлежит:

A radio communication device capable of randomizing both inter-cell interference and intra-cell interference. In this device, a spreading section primarily spreads a response signal in a ZAC sequence set by a control unit. A spreading section secondarily spreads the primarily spread response signal in a block-wise spreading code sequence set by the control unit. The control unit controls the cyclic shift amount of the ZAC sequence used for the primary spreading in the spreading section and the block-wise spreading code sequence used for the secondary spreading in the spreading section according to a set hopping pattern. The hopping pattern set by the control unit is made up of two hierarchies. An LB-based hopping pattern different for each cell is defined in the first hierarchy in order to randomize the inter-cell interference. A hopping pattern different for each mobile station is defined in the second hierarchy to randomize the intra-cell interference.

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Номер записи: 18

14-11-2013 дата публикации

INTEGRATED CIRCUIT FOR CONTROLLING RADIO TRANSMISSION OF ACK/NACK INFORMATION

Номер: US20130301594A1

Автор: Kenichi Miyoshi, Akihiko Nishio, Takashi Iwai, Sadaki Futagi, Katsuhiko Hiramatsu, Daichi Imamura, Takashi Aramaki

Принадлежит: Panasonic Corporation

A radio receiver apparatus that can effectively utilize GI to improve the reception quality. In this apparatus, a data extracting part extracts a data portion of a direct wave from a signal subjected to a radio reception process by a received RF part. A GI extracting part extracts, from the signal subjected to the radio reception process by the received RF part, GI having a length determined by an extracted GI length deciding part. The extracted GI is adjusted by a data position adjusting part such that its rear end coincides with the read end of the extracted data portion. A combining part combines the extracted data portion with the GI the data position of which has been adjusted. The combined signal is then supplied to a frequency axis equalizing part, which equalizes the signal distortions of the combined signal on the frequency axis.

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Номер записи: 19

03-05-2018 дата публикации

SCHEDULING APPARATUS AND SCHEDULING METHOD

Номер: US20180124793A1

Автор: Takashi Iwai, Sadaki Futagi, Daichi Imamura, Akihiko Nishio, Seigo Nakao, Yoshihiko Ogawa

Принадлежит:

A scheduling apparatus and a scheduling method, wherein the amount of signaling for frequency resource allocation information can be reduced while maintaining system throughput performance. In a base station apparatus (100), a scheduling section (113) allocates frequency resources to frequency allocation target terminals based on set frequency allocation units, and a frequency allocation parameter setting section (112) adjusts the set frequency allocation units set in the scheduling section (113) based on cluster numbers. Due to this, in each cluster number, frequency resources can be allocated based on the most suitable frequency allocation units with respect to the signaling bit number. As a result, the amount of signaling for frequency resource allocation information can be reduced. Further, system throughput can be maintained by making the cluster number, which is a parameter having little effect on system throughput, a setting parameter for frequency allocation units.

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Номер записи: 20

17-09-2015 дата публикации

TERMINAL APPARATUS AND SEQUENCE ASSIGNING METHOD

Номер: US20150263845A1

Автор: Yoshihiko Ogawa, Daichi Imamura, Sadaki Futagi, Tomofumi Takata

Принадлежит:

Provided is a sequence allocation method capable of reducing inter-cell interference of a reference signal when a ZC sequence is used as the reference signal in a mobile communication system. In the sequence allocation method, R×M sequences specified by a ZC sequence number r (r=1 to R) and a cyclic shift sequence number m (m=1 to M) are divided into a plurality of sequence groups X (X=1 to R) in accordance with the transmission band width of the reference signal, so that the ZC sequence is allocated to each cell in each sequence group unit. When it is assumed that R=9 and M=6, the number of sequences is 54. Each of the sequence groups is formed by two sequences. Accordingly, the number of sequence groups is 27. The 27 types of sequence groups are allocated to each cell.

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Номер записи: 21

05-09-2017 дата публикации

Base station device, terminal device and communication method

Номер: US0009756634B2

Автор: Seigo Nakao, Daichi Imamura, NAKAO SEIGO, IMAMURA DAICHI, Nakao Seigo, Imamura Daichi

Принадлежит: Godo Kaisha IP Bridge 1, GODO KAISHA IP BRIDGE 1

In a terminal, a control unit transmits a bundle response signal using a resource in a basic region of an uplink control channel in an uplink unit band of a unit band group when no error is detected in each of a plurality of pieces of downlink data of the unit band group, the uplink control channel in the uplink unit band being associated with a downlink control channel in a basic unit band that is a downlink unit band in which a broadcast channel signal including information relating to the uplink unit band is transmitted, and the control unit transmits the bundle response signal using a resource in an additional region of the uplink control channel when an error is detected in each of the plurality of pieces of downlink data.

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Номер записи: 22

13-12-2011 дата публикации

Radio communication base station device and correlation setting method

Номер: US0008077594B2

Автор: Takashi Iwai, Daichi Imamura, Tomofumi Takata, Atsushi Matsumoto, Yoshihiko Ogawa, Sadaki Futagi, IWAI TAKASHI, IMAMURA DAICHI, TAKATA TOMOFUMI, MATSUMOTO ATSUSHI, OGAWA YOSHIHIKO, FUTAGI SADAKI

Принадлежит: Panasonic Corporation, IWAI TAKASHI, IMAMURA DAICHI, TAKATA TOMOFUMI, MATSUMOTO ATSUSHI, OGAWA YOSHIHIKO, FUTAGI SADAKI, PANASONIC CORP, PANASONIC CORPORATION

Provided is a radio communication base station device which can suppress a use amount of an SRS communication resource. In this device, a correlation rule setting unit (102) sets a rule for correlating a preamble with an SRS transmission time interval so that the preamble transmission time band and the SRS transmission time band are in the same transmission time band. An SRS transmission band decision unit (103) decides a time interval of a transmission time band which can transmit the SRS according to the preamble transmission time interval inputted from a preamble transmission band decision unit (101) and the correlation rule setting unit (102).

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Номер записи: 23

12-11-2013 дата публикации

Communication system, communication relay apparatus, and communication relay method

Номер: US0008583032B2

Автор: Daichi Imamura, Ayako Horiuchi, IMAMURA DAICHI, HORIUCHI AYAKO

Принадлежит: Panasonic Corporation, IMAMURA DAICHI, HORIUCHI AYAKO, PANASONIC CORP, PANASONIC CORPORATION

A communication relay method and others are disclosed in which even when the channel quality varies, the communication data from MS can be relayed without degrading the throughput of the communication system. In this method, the channel quality between RS and BS is estimated (ST1010), and a determination criterion, which is used to determine whether to relay communication, is established based on the estimated channel quality (ST1020). More specifically, a severe determination criterion is set for a relay route having a bad channel quality between RS and BS, while a less severe determination criterion is set for a relay route having a good channel quality between RS and BS. On the other hand, the channel quality between MS and RS is also estimated (ST1030). Then, after both ST1020 and ST1030 are completed, the channel quality between MS and RS is compared to the determination criterion established in ST1020 to ultimately determine whether to relay the communication data from MS in ST1040 ...

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Номер записи: 24

08-03-2012 дата публикации

WIRELESS COMMUNICATION APPARATUS AND FREQUENCY HOPPING METHOD

Номер: US20120057449A1

Автор: Shinsuke Takaoka, Daichi Imamura, Seigo Nakao, TAKAOKA SHINSUKE, IMAMURA DAICHI, NAKAO SEIGO

Принадлежит: PANASONIC CORPORATION

Disclosed are a wireless communication apparatus and frequency hopping method which minimize the change in the instantaneous power distribution characteristics of the time waveform of transmission signals when a plurality of channels are multiplexed by frequency division. At a terminal (), a mapping unit () maps the PUCCH to frequency resources of a first slot, maps the PUSCH to frequency resources, among the frequency resources of the first slot, separated exactly by predetermined frequency spacing (B) from the frequency resources to which the PUCCH is mapped, and cyclically shifts the frequencies so as to map the PUCCH and PUSCH to frequency resources, within an IDFT or IFFT bandwidth, of a second slot while maintaining the predetermined frequency spacing (B), thereby allowing frequency hopping of the PUCCH and PUSCH between the first slot and the second slot. 1. A radio communication apparatus comprising:an arrangement section that arranges a signal of a first channel to frequency resources of a first slot and a second slot transmitted in a predetermined transmission format and arranges a signal of a second channel to frequency resources located a predetermined frequency interval apart from a frequency resource of the frequency resources of the first slot in which the first channel is arranged; andan inverse Fourier transform section that applies an inverse discrete Fourier transform or an inverse fast Fourier transform to the signals arranged in the first channel and the second channel,wherein the arrangement section cyclically frequency shifts within an inverse discrete Fourier transform or inverse fast Fourier transform bandwidth while maintaining the predetermined frequency interval, arranges the signals of the first channel and the second channel to frequency resources of the second slot and thereby causes the first channel and the second channel to perform frequency hopping between the first slot and the second slot.2. The radio communication apparatus ...

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Номер записи: 25

20-08-2013 дата публикации

Radio communication method and radio communication terminal accommodating apparatus

Номер: US0008515438B2

Автор: Daichi Imamura, Jun Hirano, IMAMURA DAICHI, HIRANO JUN

Принадлежит: Panasonic Corporation, IMAMURA DAICHI, HIRANO JUN, PANASONIC CORP, PANASONIC CORPORATION

A technique capable of improving the communication throughput while maintaining the interchangeability with a radio communication system or radio communication method employing carrier sense in a conventional multiple access system is disclosed and, on the basis of this technique, a radio communication terminal accommodating apparatus determines the allocation order of communication right permitting the occupation of a radio transmission medium with respect to each of a plurality of radio transmission terminals and transmits a multiple-polling signal 311 including information on this order to the plurality of radio communication terminals at an arbitrary transmission timing acquired through the carrier sense. Thus, each of communication right time periods (communication right time periods 312 to 314) for which the occupation of the radio transmission medium is permissible is allocated to each of the plurality of radio communication terminals. In addition, a time sufficiently shorter than ...

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Номер записи: 26

13-10-2016 дата публикации

WIRELESS BASE STATION APPARATUS, WIRELESS TERMINAL APPARATUS, FREQUENCY RESOURCE ALLOCATION METHOD, AND METHOD OF FORMING TRANSMISSION SIGNAL

Номер: US20160301547A1

Автор: Takashi Iwai, Akihiko Nishio, Daichi Imamura, Seigo Nakao, Yoshihiko Ogawa, IWAI TAKASHI, NISHIO AKIHIKO, IMAMURA DAICHI, NAKAO SEIGO, OGAWA YOSHIHIKO, Iwai Takashi, Nishio Akihiko, Imamura Daichi, Nakao Seigo, Ogawa Yoshihiko

Принадлежит:

A wireless base station apparatus and wireless terminal apparatus with a configuration which can prevent reductions in the accuracy of channel estimation when non-contiguous band transmission and SRS transmission are employed in an uplink line. In the base station apparatus (100), an allocation setting unit (106), which sets the reception band of an SRS at an SRS extraction unit (103) and sets the units of frequency allocation (RBG) at a CQI estimation unit (104) and allocation unit (105), matches the frequency position at the end of the SRS reception band to the frequency position at the end of any of the units of frequency allocation and sets the reception bandwidth of the reference signal to a natural number multiple of the bandwidth of the unit of frequency allocation. In the terminal apparatus (200), a band information setting unit (204), which sets the transmission band and units of frequency allocation (RBG), matches the frequency position at the end of the transmission band to the ...

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Номер записи: 27

18-08-2011 дата публикации

WIRELESS COMMUNICATION TERMINAL APPARATUS, WIRELESS COMMUNICATION BASE STATION APPARATUS, AND MODULATION METHOD

Номер: US20110200000A1

Автор: Akihiko Nishio, Seigo Nakao, Daichi Imamura, Masayuki Hoshino, NISHIO AKIHIKO, NAKAO SEIGO, IMAMURA DAICHI, HOSHINO MASAYUKI

Принадлежит: PANASONIC CORPORATION

A wireless communication terminal apparatus wherein even in a case of performing a wideband transmission using only a downstream line, CCE assignment can be flexibly performed without any collisions of ACK and NACK signals among a plurality of unit bands. In a wireless communication terminal apparatus (200) using a plurality of downstream unit bands to perform communications, a PDCCH receiving unit (207) blind-decodes CCE in a search space of the plurality of downstream unit bands, thereby acquiring resource assignment information of downstream line data addressed to the wireless communication terminal apparatus (200), and a modulating unit (209) modulates a response signal, which is responsive to the downstream line data in particular downstream unit bands, based on a modulation scheme in which the number of modulation multi-values corresponds to the number of those particular ones of the plurality of downstream unit bands in which the resource assignment information addressed to the wireless ...

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Номер записи: 28

09-12-2014 дата публикации

Radio communication system, mobile station apparatus, and RACH transmission method

Номер: US0008908655B2

Автор: Sadaki Futagi, Takashi Iwai, Daichi Imamura, Kenichi Miyoshi, FUTAGI SADAKI, IWAI TAKASHI, IMAMURA DAICHI, MIYOSHI KENICHI

Принадлежит: Panasonic Intellectual Property Corporation of America, FUTAGI SADAKI, IWAI TAKASHI, IMAMURA DAICHI, MIYOSHI KENICHI, PANASONIC IP CORP AMERICA, PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Provided is a mobile station device capable of performing RACH transmission with a small amount of resources. In this device, a RACH generating unit (111) is formed by a signature selection unit (112) and a modulation unit (113). A RACH signal is generated as follows. That is, according to inputted RACH re-transmission quantity information, the signature selection unit (112) selects one code sequence as a signature from a plurality of different code sequences. The modulation unit (113) modulates the signature (code sequence) and generates a RACH signal. A multiplexing unit (116) time-multiplexes the RACH signal inputted from the modulation unit (113) and user data inputted from the modulation unit (115). A radio transmission unit (117) subjects the multiplexed signal to radio processing and transmits it via an antenna (121).

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Номер записи: 29

29-05-2014 дата публикации

WIRELESS TRANSMISSION APPARATUS, WIRELESS RECEPTION APPARATUS, AND WIRELESS COMMUNICATION METHOD

Номер: US20140146770A1

Автор: Takashi Iwai, Akihiko Nishio, Daichi Imamura, Ayako Horiuchi, Atsushi Matsumoto, IWAI TAKASHI, NISHIO AKIHIKO, IMAMURA DAICHI, HORIUCHI AYAKO, MATSUMOTO ATSUSHI

Принадлежит: PANASONIC CORPORATION

To improve the operation and the effect of ICC by appropriately limiting resources of a reference signal. An SRS generating unit (154) generates an SRS as a reference signal based on SRS information transmitted from a reception unit (156), and a transmission unit (155) transmits the SRS based on the SRS information transmitted from the reception unit (156). At this time, by using information that represents an SRS drop resource as a transmission drop resource set in advance, the transmission of the SRS from the transmission unit (155) is dropped in a resource in which an SRS transmission resource used for transmitting the SRS is an SRS drop resource.

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Номер записи: 30

20-09-2016 дата публикации

Integrated circuit for CQI reporting in wireless communication

Номер: US0009450734B2

Автор: Takashi Toda, Akihiko Nishio, Daichi Imamura, TODA TAKASHI, NISHIO AKIHIKO, IMAMURA DAICHI, Toda Takashi, Nishio Akihiko, Imamura Daichi

Принадлежит: Godo Kaisha IP Bridge 1, GODO KAISHA IP BRIDGE 1

Provided is a wireless communication mobile station device by which a throughput can be improved in multicarrier communication. In the device, a group control section (107) controls a subcarrier group, of which CQI is to be reported, among a plurality of subcarrier groups to periodically change, by following pattern information. For instance, the group control section (107) changes the subcarrier group whose CQI is to be reported, by frame or TTI (Transmission Time Interval). Furthermore, the group control section (107) specifies the subcarrier group whose CQI is to be reported, to an SINR detecting section (108) and a CQI generating section (109).

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Номер записи: 31

23-08-2016 дата публикации

Communication device and SRS transmission control method

Номер: US0009426791B2

Автор: Akihiko Nishio, Daichi Imamura, NISHIO AKIHIKO, IMAMURA DAICHI, Nishio Akihiko, Imamura Daichi

Принадлежит: Sun Patent Trust, SUN PATENT TRUST

Provided are a communication device and an SRS transmission method capable of reducing the possibility of a difference in recognition between the presence or absence of an SRS transmission between a base station and a terminal or of an SRS resource so as to prevent degradation of system throughput. At a terminal (200), a reception processing unit (203) detects control information indicating whether or not to request transmission of a sounding reference signal (SRS), whereupon a transmission signal forming unit (207) transmits an A-SRS by way of control by a transmission control unit (206) on the basis of control information. The transmission control unit (206) determines whether or not to execute SRS transmission on the basis of an “SRS Transmission Execution Rule” and the reception status of trigger information.

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Номер записи: 32

17-03-2015 дата публикации

Wireless communications device and data redistribution method

Номер: US0008982818B2

Автор: Ryohei Kimura, Takaaki Kishigami, Isamu Yoshii, Daichi Imamura, KIMURA RYOHEI, KISHIGAMI TAKAAKI, YOSHII ISAMU, IMAMURA DAICHI

Принадлежит: Panasonic Intellectual Property Corporation of America, KIMURA RYOHEI, KISHIGAMI TAKAAKI, YOSHII ISAMU, IMAMURA DAICHI, PANASONIC IP CORP AMERICA, PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

A wireless communications device that transmits a multiplexed signal of a plurality of data sets of different sizes to a communications terminal includes an empty resource block detection section, which detects empty resource blocks of the data sets each of which does not use any of a predetermined number of resource blocks, from among the plurality of data sets whereto the predetermined number of resource blocks are allocated in the time direction and the frequency direction; and a data redistribution section that redistributes a part of data that is distributed in resource blocks, with respect to the data sets whereto resource including empty resource blocks are allocated, in the vicinity of pilot symbols that are disposed within the empty resource blocks. It is possible to effectively utilize the function of all the pilot symbols and improve error rate characteristics.

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Номер записи: 33

27-02-2018 дата публикации

Communication apparatus and communication method for receiving control information over a search space

Номер: US0009907064B2

Автор: Yoshiko Saito, Ayako Horiuchi, Seigo Nakao, Akihiko Nishio, Daichi Imamura, Alexander Golitschek Edler Von Elbwart, Sujuan Feng, SAITO YOSHIKO, HORIUCHI AYAKO, NAKAO SEIGO, NISHIO AKIHIKO, IMAMURA DAICHI, GOLITSCHEK EDLER VON ELBWART ALEXANDER, FENG SUJUAN, Saito Yoshiko, Horiuchi Ayako, Nakao Seigo, Nishio Akihiko, Imamura Daichi, Golitschek Edler Von Elbwart Alexander, Feng Sujuan

Принадлежит: SUN PATENT TRUST, PANASONIC IP CORP AMERICA, Panasonic Intellectual Property Corporation of America

A communication apparatus has a receiver and a decoder. The receiver receives a control signal including first downlink control information and second downlink control information, and receives decoding area information that indicates whether the extended Physical Downlink Control Channel (PDCCH) should be decoded for each of a plurality of terminal apparatuses. The decoder decodes each of a plurality of first mapping candidates in the PDCCH area or decodes each of the plurality of first mapping candidates in the PDCCH area and each of the plurality of second mapping candidates in the extended PDCCH. A number of the second mapping candidates included in the user-specific search space equals to or is more than a number of the first mapping candidates included in the common search space.

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Номер записи: 34

01-10-2009 дата публикации

RADIO TRANSMITTING APPARATUS AND RADIO TRANSMITTING METHOD

Номер: US20090245413A1

Автор: Kenichi Miyoshi, Akihiko Nishio, Daichi Imamura

Принадлежит: Matsushita Electric Industrial Co., Ltd.

A radio transmitting apparatus and a radio transmitting method wherein a guard interval having a variable length is used to allow a radio receiving apparatus to precisely and easily obtain a symbol synchronization. In the radio transmitting apparatus, a GI adding part (103) adds a short GI or a long GI, which is longer than the short GI, to the head of each of data parts into which a modulated signal outputted from a modulating part (102) has been put by a predetermined number of symbols. In a case of adding the short GI, the GI adding part (103) copies the symbols of a portion of the data part including the rear thereof, and adds the copied symbols to the head of that data part, thereby providing a GI. In a case of adding the long GI, the GI adding part (103) copies the symbols of a portion of a second data part, which immediately follows the first data part, including the rear of the second data part. Then, the GI adding part (103) adds the copied symbols to the head of the first data ...

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Номер записи: 35

22-07-2021 дата публикации

TERMINAL DEVICE, BASE STATION DEVICE, RETRANSMISSION METHOD, AND RESOURCE ALLOCATION METHOD

Номер: US20210226758A1

Автор: Masayuki Hoshino, Akihiko Nishio, Daichi Imamura

Принадлежит:

The present disclosure provides a terminal device that allows constraints on user allocation to be prevented and spread codes to be allocated in a scheduler when non-adaptive HARQ is employed using a PHICH. A codeword generator generates code words by encoding data, a layer mapping unit places each CW in one or a plurality of layers, a DMRS generator generates a reference signal for each layer in which a CW is placed by using any resource among a plurality of resources defined by a mutually orthogonal plurality of OCCs, and an ACK/NACK demodulator receives a response signal indicating a retransmission request. When a response signal requesting retransmission of only a CW placed in a plurality of layers is received, the DMRS generator uses each resource having the same OCC among the plurality of resources for the reference signals generated in the corresponding layers.

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Номер записи: 36

04-01-2011 дата публикации

Multi-antenna reception apparatus, multi-antenna reception method, multi-antenna transmission apparatus and multi-antenna communication system

Номер: US0007864903B2

Автор: Yutaka Murakami, Kiyotaka Kobayashi, Masayuki Orihashi, Akihiko Matsuoka, Daichi Imamura, Rahul Malik, MURAKAMI YUTAKA, KOBAYASHI KIYOTAKA, ORIHASHI MASAYUKI, MATSUOKA AKIHIKO, IMAMURA DAICHI, MALIK RAHUL

Принадлежит: Panasonic Corporation, PANASONIC CORP, PANASONIC CORPORATION

Soft decision sections (503, 506) provisionally decide each modulated signal (502, 505) separated using an inverse matrix calculation of a channel fluctuation matrix at separation section (501). Signal point reduction sections (508, 510, 514, 516) reduce candidate signal points of a multiplexed modulated signal using the provisional decision results (504, 507). Soft decision sections (512, 518) make a correct decision using the reduced candidate signal points and obtain received data (RA, RB) of each modulated signal. This allows received data RA, RB with a good error rate characteristic to be obtained with a relatively small number of calculations without reducing data transmission efficiency.

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Номер записи: 37

02-06-2020 дата публикации

Communication device and SRS transmission control method

Номер: US0010674493B2

Автор: Akihiko Nishio, Daichi Imamura, NISHIO AKIHIKO, IMAMURA DAICHI, Nishio, Akihiko, Imamura, Daichi

Принадлежит: Sun Patent Trust, SUN PATENT TRUST

Provided are a communication device and an SRS transmission method capable of reducing the possibility of a difference in recognition between the presence or absence of an SRS transmission between a base station and a terminal or of an SRS resource so as to prevent degradation of system throughput. At a terminal (200), a reception processing unit (203) detects control information indicating whether or not to request transmission of a sounding reference signal (SRS), whereupon a transmission signal forming unit (207) transmits an A-SRS by way of control by a transmission control unit (206) on the basis of control information. The transmission control unit (206) determines whether or not to execute SRS transmission on the basis of an “SRS Transmission Execution Rule” and the reception status of trigger information.

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Номер записи: 38

23-05-2017 дата публикации

Radio commnication device and response signal diffusion method

Номер: US0009660750B2

Автор: Sadaki Futagi, Seigo Nakao, Daichi Imamura, FUTAGI SADAKI, NAKAO SEIGO, IMAMURA DAICHI, Futagi Sadaki, Nakao Seigo, Imamura Daichi

Принадлежит: Optis Wireless Technology, LLC, OPTIS WIRELESS TECHNOLOGY LLC

Provided is a radio communication device which can suppress inter-code interference between an ACK/NACK signal and a CQI signal which are code-multiplexed. A diffusion unit (214) diffuses the ACK/NACK signal inputted from a judgment unit (208) by using a ZC sequence. A diffusion unit (219) diffuses the CQI signal by using a cyclic shift ZC sequence. By using a Walsh sequence, a diffusion unit (216) further diffuses the ACK/NACK signal which has been diffused by using the ZC sequence. A control unit (209) controls the diffusion unit (214), the diffusion unit (216), and the diffusion unit (219) so that the minimum value of the difference between the CQI signals from a plurality of mobile stations and a cyclic shift amount of the ACK/NACK signal is not smaller than the minimum value of the difference between the cyclic shift amounts of the ACK/NACK signals from the plurality of mobile stations.

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Номер записи: 39

23-10-2018 дата публикации

Communication apparatus and communication method for receiving control information over a search space

Номер: US0010111219B2

Автор: Yoshiko Saito, Ayako Horiuchi, Seigo Nakao, Akihiko Nishio, Daichi Imamura, Alexander Golitschek Edler Von Elbwart, Sujuan Feng, SAITO YOSHIKO, HORIUCHI AYAKO, NAKAO SEIGO, NISHIO AKIHIKO, IMAMURA DAICHI, GOLITSCHEK EDLER VON ELBWART ALEXANDER, FENG SUJUAN, Saito, Yoshiko, Horiuchi, Ayako, Nakao, Seigo, Nishio, Akihiko, Imamura, Daichi, Golitschek Edler Von Elbwart, Alexander, Feng, Sujuan

Принадлежит: SUN PATENT TRUST, Sun Patent Trust

A communication apparatus has a receiver and a decoder. The receiver receives a control signal including first downlink control information and second downlink control information, and receives decoding area information that indicates whether the extended Physical Downlink Control Channel (PDCCH) should be decoded for each of a plurality of terminal apparatuses. The decoder decodes each of a plurality of first mapping candidates in the PDCCH area or decodes each of the plurality of first mapping candidates in the PDCCH area and each of the plurality of second mapping candidates in the extended PDCCH. A number of the second mapping candidates included in the user-specific search space equals to or is more than a number of the first mapping candidates included in the common search space.

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Номер записи: 40

23-12-2014 дата публикации

Terminal station apparatus, base station apparatus, transmission method and control method

Номер: US0008917587B2

Автор: Yoshihiko Ogawa, Akihiko Nishio, Takashi Iwai, Seigo Nakao, Daichi Imamura, Atsushi Sumasu, OGAWA YOSHIHIKO, NISHIO AKIHIKO, IWAI TAKASHI, NAKAO SEIGO, IMAMURA DAICHI, SUMASU ATSUSHI

Принадлежит: Panasonic Intellectual Property Corporation of America, OGAWA YOSHIHIKO, NISHIO AKIHIKO, IWAI TAKASHI, NAKAO SEIGO, IMAMURA DAICHI, SUMASU ATSUSHI, PANASONIC IP CORP AMERICA, PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

A terminal apparatus is disclosed wherein even in a case of applying SU-MIMO and MU-MIMO at the same time, the inter-sequence interference in a plurality of pilot signals used by the same terminal can be suppressed to a low value, while the inter-sequence interference in pilot signal between terminals can be reduced. In this terminal apparatus (200): a pilot information deciding unit (204) decides, based on allocation control information, Walsh sequences of the respective ones of first and second stream groups at least one of which includes a plurality of streams; and a pilot signal generating unit (205) forms a transport signal by using the decided Walsh sequences to spread the streams included in the first and second stream groups. During this, Walsh sequences orthogonal to each other are established in the first and second stream groups, and users are allocated on a stream group-by-stream group basis.

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Номер записи: 41

26-09-2017 дата публикации

Integrated circuit

Номер: US0009775070B2

Автор: Ayako Horiuchi, Seigo Nakao, Daichi Imamura, Akihiko Nishio, HORIUCHI AYAKO, NAKAO SEIGO, IMAMURA DAICHI, NISHIO AKIHIKO, Horiuchi Ayako, Nakao Seigo, Imamura Daichi, Nishio Akihiko

Принадлежит: SUN PATENT TRUST

A CCE+ number allocation method reduces the ACK/NACK (Acknowledgment/Negative Acknowledgment) collision probability in a mixed system containing an LTE (Long Term Evolution) system and an LTE+ (Long Term Evolution Advanced) system. A CCE (Control Channel Element)+ number is defined by selecting a number from CCE numbers of the CCE to contain PDCCH (Physical Downlink Control Channel) allocated in a resource element region constituting CCE+ where PDCCH+ is arranged. This can prevent overlapped selection of the CCE number and the CCE+ number even when the PDCCH and the PDCCH+ are simultaneously transmitted, thus making it possible to reduce the collision probability of ACK/NACK correlated to the CCE number and the CCE+ number.

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Номер записи: 42

03-09-2015 дата публикации

RADIO COMMUNICATION APPARATUSES AND RADIO COMMUNICATION METHOD

Номер: US20150249963A1

Автор: Takashi Iwai, Akihiko Nishio, Daichi Imamura, Yoshihiko Ogawa, Atsushi Matsumoto

Принадлежит:

A radio communication apparatus is provided, which includes a receiver and a controller. The receiver, in operation, receives a first power headroom (PHR), which is obtained by subtracting a transmit power for a data channel from a maximum transmit power at a mobile station and which is transmitted from the mobile station, and receives a second PHR, which is obtained by subtracting the transmit power for the data channel and a transmit power for a control channel from the maximum transmit power at the mobile station and which is transmitted from the mobile station. The controller, in operation, selectively sets a simultaneous transmission of the data channel and the control channel in different frequency bands to be performed by the mobile station. When the data channel and the control channel are simultaneously transmitted in different frequency bands from the mobile station, the second PHR is obtained and transmitted from the mobile station.

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Номер записи: 43

10-08-2010 дата публикации

Method for reducing medium access overhead in a wireless network

Номер: US0007773577B2

Автор: Rahul Malik, Pek Yew Tan, Daichi Imamura, Junya Yamazaki, Katsuyoshi Naka, MALIK RAHUL, TAN PEK YEW, IMAMURA DAICHI, YAMAZAKI JUNYA, NAKA KATSUYOSHI

Принадлежит: Panasonic Corporation, PANASONIC CORP, PANASONIC CORPORATION

The invention includes methods for achieving efficient channel access in a wireless communications system. The invention is embodied in a wireless network adapter that is present in all stations belonging to the network. The invention describes methods by which access overheads may be reduced by introducing the concept of context sensitive frame timingusing which stations redefine and interpret frame timing depending on context and signaling. The result of realizing the invention is an improvement in medium utilization efficiency and consequently, an overall improvement in network throughput.

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Номер записи: 44

01-03-2016 дата публикации

Terminal device, base station device, transmission method and reception method

Номер: US0009276717B2

Автор: Toru Oizumi, Daichi Imamura

Принадлежит: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

The present disclosure enables dynamic switching to a frame format different from the UL-DL configuration set by an SIB, and in particular switching to a downlink communication subframe from an uplink communication subframe, while also enabling effective utilization of downlink communication subframes. A base station uses “UL/DL communication subframe switching information” included in a DCI sent by a downlink communication subframe to instruct a terminal whether or not to perform uplink communication to a DCI using one or more uplink-specific communication subframes, and also gives instructions whether to perform uplink communication or downlink communication on an uplink communication subframe switchable to a downlink communication subframe.

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Номер записи: 45

02-02-2021 дата публикации

Communication apparatus and reference signal reception method

Номер: US0010911198B2

Автор: Takashi Iwai, Sadaki Futagi, Tomohumi Takata, Daichi Imamura, Yoshihiko Ogawa, IWAI TAKASHI, FUTAGI SADAKI, TAKATA TOMOHUMI, IMAMURA DAICHI, OGAWA YOSHIHIKO, Iwai, Takashi, Futagi, Sadaki, Takata, Tomohumi, Imamura, Daichi, Ogawa, Yoshihiko

Принадлежит: Sun Patent Trust, SUN PATENT TRUST

Disclosed are a wireless transmitter and a reference signal transmission method that improve channel estimation accuracy. In a terminal, which transmits a reference signal using n (n is a non-negative integer 2 or greater) band blocks (which correspond to clusters here), which are disposed with spaces therebetween in a frequency direction, a reference signal controller switches the reference signal formation method of a reference signal generator between a first formation method and a second formation method based on the number (n) of band blocks. In addition, a threshold value setting unit adjusts a switching threshold value based on the frequency spacing between band blocks. Thus, the reference signal formation method can be selected with good accuracy and, as a result, channel estimation accuracy is further improved.

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Номер записи: 46

13-02-2018 дата публикации

Communication apparatus and control information receiving method

Номер: US0009893849B2

Автор: Seigo Nakao, Akihiko Nishio, Daichi Imamura, NAKAO SEIGO, NISHIO AKIHIKO, IMAMURA DAICHI, Nakao Seigo, Nishio Akihiko, Imamura Daichi

Принадлежит: SUN PATENT TRUST, PANASONIC IP CORP AMERICA, PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

In a base station, a control unit and a data size regulation unit control the data size of downstream assignment control data and upstream assignment control data in the PDCCH signal based on the communication format used between the base station and a terminal, the number of base station antennas (M) (nonnegative number), the number of terminal antennas (N) (nonnegative number), the bandwidth of the downstream band, and the bandwidth of the upstream band. Specifically, the control unit determines it is unnecessary to adjust the aforementioned data size when the selected communication format is first established between multiple antennas and when where there are multiple for one of M and N and only one for the other. The quality of downstream assignment control data is prevented from degrading, while preventing the number of blind determinations from increasing on the receiving side of the downstream control channel signal.

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Номер записи: 47

08-12-2015 дата публикации

Integrated circuit for channel allocation for wireless communication device

Номер: US0009210702B2

Автор: Seigo Nakao, Akihiko Nishio, Daichi Imamura, NAKAO SEIGO, NISHIO AKIHIKO, IMAMURA DAICHI

Принадлежит: Panasonic Intellectual Property Corporation of America, PANASONIC IP CORP AMERICA, PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Disclosed is a base station in which the frequency usage efficiency can be improved when the communication bandwidths are asymmetric in the uplink line and the downlink line. A base station can communicate by using a plurality of downlink unit bands and a smaller number of uplink unit bands. A control unit allocates uplink resource allocation information and downlink resource allocation information to a PDCCH which is arranged in each of the plurality of downlink unit bands, and allocates a response signal to the uplink line data to a PHICH which is arranged in the same number of downlink unit bands from the plurality of downlink unit bands as there are uplink unit bands. A transmit RF unit transmits the resource allocation information or the response signal.

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Номер записи: 48

27-05-2021 дата публикации

WIRELESS COMMUNICATION APPARATUS AND CHANNEL ALLOCATION METHOD

Номер: US20210160833A1

Автор: Seigo Nakao, Akihiko Nishio, Daichi Imamura, NAKAO SEIGO, NISHIO AKIHIKO, IMAMURA DAICHI, Nakao, Seigo, Nishio, Akihiko, Imamura, Daichi

Принадлежит:

Disclosed is a base station in which the frequency usage efficiency can be improved when the communication bandwidths are asymmetric in the uplink line and the downlink line. A base station can communicate by using a plurality of downlink unit bands and a smaller number of uplink unit bands. A control unit allocates uplink resource allocation information and downlink resource allocation information to a PDCCH which is arranged in each of the plurality of downlink unit bands, and allocates a response signal to the uplink line data to a PHICH which is arranged in the same number of downlink unit bands from the plurality of downlink unit bands as there are uplink unit bands. A transmit RF unit transmits the resource allocation information or the response signal.

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Номер записи: 49

05-09-2023 дата публикации

Wireless communication device and method for controlling transmission power

Номер: US0011751143B2

Автор: Takashi Iwai, Daichi Imamura, Akihiko Nishio, Yoshihiko Ogawa, Shinsuke Takaoka

Принадлежит: Sun Patent Trust

Disclosed is a wireless communication device that can suppress an increase in power consumption of a terminal while preventing the degradation of SINR measurement precision resulting from TPC errors in a base station. A terminal controls the transmission power of a second signal by adding an offset to the transmission power of a first signal; an offset-setting unit sets an offset correction value in response to a transmission time gap between a third signal transmitted the previous time and the second signal transmitted this time; and a transmission power control unit controls the transmission power of the second signal using the correction value.

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Номер записи: 50

20-10-2022 дата публикации

RADIO COMMUNICATION TERMINAL AND RADIO COMMUNICATION METHOD

Номер: US20220338166A1

Автор: Yasuaki Yuda, Seigo Nakao, Ayako Horiuchi, Akihiko Nishio, Daichi Imamura, Kenichi Miyoshi

Принадлежит:

Provided is a radio communication terminal which is capable of measuring quality in communication with a handover destination with high accuracy. The radio communication terminal is capable of communicating with a base station or a relay node, and includes: a receiver which receives control information including information relating to measurement of measuring quality of a neighbor cell; an extractor which extracts information on a subframe where the measurement should be performed, which is a subframe where only transmission of a signal from the relay node connected to the base station is performed, from the information relating to the measurement; a measurement section which performs the measurement, on a subframe basis, based on the extracted information on the subframe where the measurement should be performed; and a transmitter which transmits a result of the measurement to the base station or the relay node.

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Номер записи: 51

20-03-2013 дата публикации

Base station device and communication method executed by base station device

Номер: CN102983931A

Автор: Daichi Imamura, Takashi Iwai, Kazunori Inogai, Sadaki Futagi, Atsushi Matsumoto

Принадлежит:

Disclosed is a base station device and a communication method executed by the base station device. The base station device comprises a transmitter used for broadcasting information related to sequences available in a cell, wherein the sequences available in the cell include a sequence of r=a and a sequence of r=N-a, which are defined by Equation 1 below: where k=0, 1, 2,... N-1, and q is an integer; and a digital type receiver that receives one sequence included by the sequences available in a cell.

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Номер записи: 52

30-12-2014 дата публикации

Wireless communication apparatus, wireless communication system and wireless communication method

Номер: US0008923428B2

Автор: Qian Yu, Lei Huang, Masayuki Hoshino, Daichi Imamura, YU QIAN, HUANG LEI, HOSHINO MASAYUKI, IMAMURA DAICHI

Принадлежит: Panasonic Intellectual Property Corporation of America, PANASONIC IP CORP AMERICA, PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

In a MIMO system using a cross-polarized antenna structure, even if no ideal XPD can be obtained, the interference between different polarized waves can be reduced to allow an effective precoding to be executed. When a MIMO communication is performed between a transmitter and a receiver each using a cross-polarized antenna structure, a channel estimating and precoding selection section of the receiver performs a channel estimation of MIMO channels from the transmitter to the receiver, decides a precoding matrix of a projection matrix for mutually orthogonalizing or substantially orthogonalizing the channel response matrixes for respective different polarized waves, and feeds the determined precoding matrix back to the transmitter. In the transmitter, a precoding processing section applies the precoding matrix to the spatial stream corresponding to one of the polarized waves to perform a precoding, thereby allowing the transmitter to transmit the polarized waves with the orthogonality therebetween ...

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Номер записи: 53

30-12-2014 дата публикации

Base station, terminal, band allocation method, and downlink data communication method

Номер: US0008923221B2

Автор: Seigo Nakao, Katsuhiko Hiramatsu, Akihiko Nishio, Daichi Imamura, NAKAO SEIGO, HIRAMATSU KATSUHIKO, NISHIO AKIHIKO, IMAMURA DAICHI

Принадлежит: Panasonic Intellectual Property Corporation of America, NAKAO SEIGO, HIRAMATSU KATSUHIKO, NISHIO AKIHIKO, IMAMURA DAICHI, PANASONIC IP CORP AMERICA, PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Provided are a base station, a terminal, a band allocation method, and a downlink data communication method with which bands can be efficiently allocated. In a base station (200) in which a plurality of unit bands can be allocated to a single communication, when a data receiver (260) acquires terminal capability information transmitted by a terminal (100) in the initial access unit band and the bandwidth available for communication indicated by the terminal capability information can accommodate a plurality of unit bands, a unit band group which includes the initial access unit band as well as the unit bands adjacent thereto is allocated to the terminal (100), and a communication band movement indication, which indicates the movement of the center frequency in the communication band of the terminal (100) toward the center frequency in the unit band group, is transmitted to the terminal (100) using the initial access unit band.

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Номер записи: 54

08-05-2014 дата публикации

RECEIVER APPARATUS, TRANSMITTER APPARATUS, SETTING METHOD, AND DETERMINING METHOD

Номер: US20140126510A1

Автор: Yoshihiko Ogawa, Daichi Imamura, OGAWA YOSHIHIKO, IMAMURA DAICHI

Принадлежит: PANASONIC CORPORATION

Provided is a receiver apparatus that can improve the flexibility of setting resource candidates used for transmitting a reference signal. In this apparatus, a setting unit (101) sets a reference signal resource candidate group including a desirable SRS resource candidate group in a macro cell and also including a desirable SRS resource candidate group in a pico cell. The setting unit (101) further generates cancel information used for canceling, from the reference signal resource candidate group, an excessive resource that is included in the reference signal resource candidate group but not included in a first desirable resource candidate group. Then, ID information of a resource pattern, which determines the reference signal resource candidate group, and the cancel information are sent to a terminal (200).

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Номер записи: 55

09-12-2014 дата публикации

Wireless communication apparatus and frequency hopping method

Номер: US0008908495B2

Автор: Shinsuke Takaoka, Daichi Imamura, Seigo Nakao, TAKAOKA SHINSUKE, IMAMURA DAICHI, NAKAO SEIGO

Принадлежит: Panasonic Intellectual Property Corporation of America, PANASONIC CORP, PANASONIC IP CORP AMERICA, PANASONIC CORPORATION, PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Disclosed are a wireless communication apparatus and frequency hopping method which minimize the change in the instantaneous power distribution characteristics of the time waveform of transmission signals when a plurality of channels are multiplexed by frequency division. At a terminal (200), a mapping unit (212) maps the PUCCH to frequency resources of a first slot, maps the PUSCH to frequency resources, among the frequency resources of the first slot, separated exactly by predetermined frequency spacing (B) from the frequency resources to which the PUCCH is mapped, and cyclically shifts the frequencies so as to map the PUCCH and PUSCH to frequency resources, within an IDFT or IFFT bandwidth, of a second slot while maintaining the predetermined frequency spacing (B), thereby allowing frequency hopping of the PUCCH and PUSCH between the first slot and the second slot.

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Номер записи: 56

16-04-2020 дата публикации

INTEGRATED CIRCUIT

Номер: US20200119871A1

Автор: Seigo Nakao, Akihiko Nishio, Daichi Imamura, NAKAO SEIGO, NISHIO AKIHIKO, IMAMURA DAICHI, Nakao, Seigo, Nishio, Akihiko, Imamura, Daichi

Принадлежит:

A base station communicates with a terminal, for which an uplink component carrier and downlink component carriers are configured. The base station adjusts a payload size of control information, transmitted in a downlink control channel, based on a basic payload size, and maps the control information onto a search space in at least one of the downlink component carriers. The basic payload size of the control information mapped onto a search space in a primary downlink component carrier is based on a number of information bits obtained from a bandwidth of the primary downlink component carrier, and on a number of information bits obtained from a bandwidth of the uplink component carrier. The basic payload size of the control information mapped onto a search space in a non-primary downlink component carrier is based on a number of information bits obtained from a bandwidth of the non-primary downlink component carrier.

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Номер записи: 57

16-07-2015 дата публикации

INTEGRATED CIRCUIT FOR CONTROLLING SELECTION OF RANDOM ACCESS PREAMBLE SEQUENCE

Номер: US20150200705A1

Автор: Daichi Imamura, Takashi Iwai, Kazunori Inogai, Sadaki Futagi, Atsushi Matsumoto

Принадлежит:

A sequence allocating method and apparatus wherein in a system where a plurality of different Zadoff-Chu sequences or GCL sequences are allocated to a single cell, the arithmetic amount and circuit scale of a correlating circuit at a receiving end can be reduced. In ST201, a counter (a) and a number (p) of current sequence allocations are initialized, and in ST202, it is determined whether the number (p) of current sequence allocations is coincident with a number (K) of allocations to one cell. In ST203, it is determined whether the number (K) of allocations to the one cell is odd or even. If K is even, in ST204-ST206, sequence numbers (r=a and r=N−a), which are not currently allocated, are combined and then allocated. If K is odd, in ST207-ST212, for sequences that cannot be paired, one of sequence numbers (r=a and r=N−a), which are not currently allocated, is allocated.

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Номер записи: 58

24-09-2009 дата публикации

RADIO RECEIVER APPARATUS AND RADIO TRANSMITTER APPARATUS

Номер: US20090239484A1

Автор: Kenichi Miyoshi, Akihiko Nishio, Takashi Iwai, Sadaki Futagi, Katsuhiko Hiramatsu, Daichi Imamura, Takashi Aramaki

Принадлежит: Matsushita Electric Industrial Co., Ltd.

A radio receiver apparatus that can effectively utilize GI to improve the reception quality. In this apparatus, a data extracting part (104) extracts a data portion of a direct wave from a signal subjected to a radio reception process by a received RF part (102). A GI extracting part (107) extracts, from the signal subjected to the radio reception process by the received RF part (102), GI having a length determined by an extracted GI length deciding part (106). The extracted GI is adjusted by a data position adjusting part (108) such that its rear end coincides with the read end of the extracted data portion. A combining part (109) combines the extracted data portion with the GI the data position of which has been adjusted. The combined signal is then supplied to a frequency axis equalizing part (110), which equalizes the signal distortions of the combined signal on the frequency axis.

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Номер записи: 59

14-04-2020 дата публикации

Communication apparatus and communication method

Номер: US0010623168B2

Автор: Shinsuke Takaoka, Daichi Imamura, Kenichi Miyoshi, TAKAOKA SHINSUKE, IMAMURA DAICHI, MIYOSHI KENICHI, Takaoka, Shinsuke, Imamura, Daichi, Miyoshi, Kenichi

Принадлежит: Sun Patent Trust, SUN PATENT TRUST

A communication apparatus comprises a generator that generates frequency resource position information corresponding to a first information which is based on the communication quality information received from user equipments, the frequency resource position information indicating validity or invalidity of the first information for each frequency resource, and a transmitter that transmits the first information, the frequency resource position information and a cell ID which the frequency resource position is applied, to another communication apparatus via a backhaul.

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Номер записи: 60

07-04-2011 дата публикации

BASE STATION APPARATUS, SEQUENCE ASSIGNING METHOD AND REFERENCE SIGNAL GENERATING METHOD

Номер: US20110080966A1

Автор: Yoshihiko Ogawa, Daichi Imamura, Sadaki Futagi, Tomofumi Takata

Принадлежит: Panasonic Corporation

Provided is a sequence allocation method capable of reducing inter-cell interference of a reference signal when a ZC sequence is used as the reference signal in a mobile communication system. In the sequence allocation method divides R×M sequences specified by a ZC sequence number r (r=1 to R) and a cyclic shift sequence number m (m=1 to M) into a plurality of sequence groups X (X=1 to R) in accordance with the transmission band width of the reference signal, so that the ZC sequence is allocated to each cell in each sequence group unit. When it is assumed that R=9 and M=6, the number of sequence is 54. Each of the sequence groups is formed by two sequences. Accordingly, the number of sequence groups is 27. The 27 types of sequence groups are allocated to each cell.

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Номер записи: 61

11-07-2013 дата публикации

INTEGRATED CIRCUIT FOR RANDOM ACCESS METHOD AND APPARATUS

Номер: US20130176969A1

Автор: Daichi Imamura, Sadaki Futagi, Atsushi Matsumoto, Takashi Iwai, Tomofumi Takata

Принадлежит: PANASONIC CORPORATION

A mobile station apparatus includes a receiving unit configured to receive control information; a selecting unit configured to randomly select a sequence from a plurality of sequences contained in one group of a plurality of groups, into which a predetermined number of sequences generated from a plurality of base sequences are grouped and which are respectively associated with different amounts of data or reception qualities; and a transmitting unit for transmitting the selected sequence. The predetermined number of sequences are grouped by partitioning the predetermined number of sequences, in which sequences generated from the same base sequence and having different cyclic shifts are arranged in an increasing order of the cyclic shifts. A position at which the predetermined number of sequences are partitioned is determined based on the control information, and a number of sequences contained in each of the plurality of groups varies in accordance with the control information. 1. An integrated circuit for controlling a process comprising:receiving control information;grouping a predetermined number of sequences that are generated from a plurality of base sequences into a plurality of groups, which are respectively associated with different amounts of data or reception qualities, by partitioning the predetermined number of sequences, in which sequences generated from the same base sequence and having different cyclic shifts are arranged in an increasing order of the cyclic shifts; andrandomly selecting a sequence from a plurality of sequences contained in one group of the plurality of groups,wherein a position at which the predetermined number of sequences are partitioned is determined based on the control information, and a number of sequences contained in each of the plurality of groups varies in accordance with the control information.2. The integrated circuit according to claim 1 , the process further comprises transmitting the selected sequence.3. The ...

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Номер записи: 62

15-10-2020 дата публикации

RECEPTION APPARATUS AND RECEPTION METHOD

Номер: US20200329465A1

Автор: Zhi Zhang, Ming Xu, Masayuki Hoshino, Daichi Imamura, Akihiko Nishio, ZHANG ZHI, XU MING, HOSHINO MASAYUKI, IMAMURA DAICHI, NISHIO AKIHIKO, Zhang, Zhi, Xu, Ming, Hoshino, Masayuki, Imamura, Daichi, Nishio, Akihiko

Принадлежит:

Method of scrambling signals, transmission point device, and user equipment using the method are provided. The method includes: sending an ID table to a user equipment through higher layer signaling, the ID table being a subset of the whole ID space and containing available IDs for the user equipment; notifying the user equipment an ID in the ID table to be used through physical layer signaling or UE specific higher layer signaling; generating a random seed based on the notified ID; initializing a scrambling sequence by the random seed; and scrambling the signals with the initialized scrambling sequence. The method of the disclosure, by combining physical layer signaling and higher layer signaling, may notify the used group ID and the blind detection space to a UE, wherein the blind detection for the UE is enabled and the signaling overhead is reduced.

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Номер записи: 63

06-05-2010 дата публикации

Sequence Report Method and Sequence Report Device

Номер: US20100113046A1

Автор: Daichi Imamura, Takashi Iwai, Kazunori Inogai, Sadaki Futagi, Atsushi Matsumoto, IMAMURA DAICHI, IWAI TAKASHI, INOGAI KAZUNORI, FUTAGI SADAKI, MATSUMOTO ATSUSHI

Принадлежит: PANASONIC CORPORATION

Disclosed are a sequence report method and a sequence report device for reducing a signaling amount for reporting a Zadoff-Chu sequence or a GCL sequence allocated for a cell. Indexes starting at 1 are correlated to different ZC sequences and are allocated for cells so that the indexes are continuous. When such ZC sequences are reported from BS to UE, a start index indicating the start of the continuous indexes is combined with the number of allocated sequences and they are reported as allocation sequence information by a report channel. The UE and the BS share the correlation between the ZC sequences and the indexes and the UE identifies a usable sequence number according to the correlation and the allocation sequence information reported from the BS.

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Номер записи: 64

06-03-2018 дата публикации

Terminal device, base station device, and communication method

Номер: US0009913260B2

Автор: Kazuki Takeda, Akihiko Nishio, Daichi Imamura, Yoshihiko Ogawa, TAKEDA KAZUKI, NISHIO AKIHIKO, IMAMURA DAICHI, OGAWA YOSHIHIKO, Takeda Kazuki, Nishio Akihiko, Imamura Daichi, Ogawa Yoshihiko

Принадлежит: Sun Patent Trust, SUN PATENT TRUST

A terminal device is equipped with: a sequence determination unit that determines a sequence number with a different pattern than the assignment pattern for the sequence number assigned to the cell in which the host device resides; a reference signal generation unit that generates a reference signal for a sequence group corresponding to the sequence number that has been determined; and a wireless transmission unit that transmits the reference signal that has been generated to a base station. The sequence determination unit employs a configuration whereby, with the sequence number assigned to the cell in which the host device resides as a cell-specific sequence number, a dynamic offset which periodically changes over time and for which the same value is not consecutive is added to the cell-specific sequence number, thereby determining a sequence number which never overlaps with the cell-specific sequence number.

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Номер записи: 65

17-06-2021 дата публикации

REFERENCE SIGNAL RECEPTION AND CQI COMPUTATION METHOD AND WIRELESS COMMUNICATION APPARATUS

Номер: US20210184818A1

Автор: Akihiko Nishio, Seigo Nakao, Daichi Imamura

Принадлежит:

A wireless communication base station apparatus which is able to prevent deterioration in the throughput of LTE terminals even when LTE terminals and LTE+ terminals coexist. In this apparatus, based on the mapping pattern of the reference signals used only in LTE+ terminals, a setting unit sets, in each subframe, the resource block groups where the reference signals used only by the LTE+ terminals are mapped. For symbols mapped to the antennas, an mapping unit maps, to all the resource blocks within one frame, cell specific reference signals used for both LTE terminals and LTE+ terminals. For the symbols mapped to the antennas, the mapping unit maps, to the plurality of resource blocks, of which part of the resource block groups is comprised, in the same subframe within one frame, the cell specific reference signals used only for LTE+ terminals, based on the setting results inputted from the setting unit.

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Номер записи: 66

25-06-2020 дата публикации

RADIO COMMUNICATION APPARATUSES AND RADIO COMMUNICATION METHOD

Номер: US20200205091A1

Автор: Takashi Iwai, Akihiko Nishio, Daichi Imamura, Yoshihiko Ogawa, Atsushi Matsumoto, IWAI TAKASHI, NISHIO AKIHIKO, IMAMURA DAICHI, OGAWA YOSHIHIKO, MATSUMOTO ATSUSHI, Iwai, Takashi, Nishio, Akihiko, Imamura, Daichi, Ogawa, Yoshihiko, Matsumoto, Atsushi

Принадлежит:

A radio communication apparatus is provided, which includes a receiver and a controller. The receiver, in operation, receives a first power headroom (PHR), which is obtained by subtracting a transmit power for a data channel from a maximum transmit power at a mobile station and which is transmitted from the mobile station, and receives a second PHR, which is obtained by subtracting the transmit power for the data channel and a transmit power for a control channel from the maximum transmit power at the mobile station and which is transmitted from the mobile station. The controller, in operation, selectively sets a simultaneous transmission of the data channel and the control channel in different frequency bands to be performed by the mobile station. When the data channel and the control channel are simultaneously transmitted in different frequency bands from the mobile station, the second PHR is obtained and transmitted from the mobile station.

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Номер записи: 67

06-09-2016 дата публикации

Wireless base station apparatus, wireless terminal apparatus, frequency resource allocation method, and method of forming transmission signal

Номер: US0009438398B2

Автор: Takashi Iwai, Akihiko Nishio, Daichi Imamura, Seigo Nakao, Yoshihiko Ogawa, IWAI TAKASHI, NISHIO AKIHIKO, IMAMURA DAICHI, NAKAO SEIGO, OGAWA YOSHIHIKO, Iwai Takashi, Nishio Akihiko, Imamura Daichi, Nakao Seigo, Ogawa Yoshihiko

Принадлежит: Sun Patent Trust, SUN PATENT TRUST

A wireless base station apparatus and wireless terminal apparatus with a configuration which can prevent reductions in the accuracy of channel estimation when non-contiguous band transmission and SRS transmission are employed in an uplink line. In the base station apparatus (100), an allocation setting unit (106), which sets the reception band of an SRS at an SRS extraction unit (103) and sets the units of frequency allocation (RBG) at a CQ1 estimation unit (104) and allocation unit (105), matches the frequency position at the end of the SRS reception band to the frequency position at the end of any of the units of frequency allocation and sets the reception bandwidth of the reference signal to a natural number multiple of the bandwidth of the unit of frequency allocation. In the terminal apparatus (200), a band information setting unit (204), which sets the transmission band and units of frequency allocation (RBG), matches the frequency position at the end of the transmission band to the ...

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Номер записи: 68

22-03-2016 дата публикации

Base station and related radio communication method

Номер: US0009295078B2

Автор: Seigo Nakao, Akihiko Nishio, Ayako Horiuchi, Daichi Imamura, NAKAO SEIGO, NISHIO AKIHIKO, HORIUCHI AYAKO, IMAMURA DAICHI

Принадлежит: Panasonic Intellectual Property Corporation of America, PANASONIC IP CORP AMERICA, PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Provided are a terminal device and a retransmission control method that make it possible to minimize increases in overhead in an uplink control channel (PUCCH), even if channel selection is used as the method to transmit response signals during carrier-aggregation communication using a plurality of downlink unit bands. On the basis of the generation status of uplink data and error-detection results obtained by a CRC unit, a control unit in the provided terminal uses response signal transmission rules to control the transmission of response signals or uplink control signals that indicate the generation of uplink data. If an uplink control signal and a response signal are generated simultaneously within the same transmission time unit, the control unit changes the resources allocated to the response signal and/or the phase point of the response signal in accordance with the number and position of ACKs within the error-detection result pattern.

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Номер записи: 69

15-03-2012 дата публикации

BASE STATION APPARATUS AND RADIO COMMUNICATION METHOD

Номер: US20120063292A1

Автор: Seigo Nakao, Daichi Imamura, Akihiko Nishio, Masayuki Hoshino, NAKAO SEIGO, IMAMURA DAICHI, NISHIO AKIHIKO, HOSHINO MASAYUKI

Принадлежит: PANASONIC CORPORATION

A wireless communication apparatus capable of minimizing the degradation in separation characteristic of a code multiplexed response signal. In this apparatus, a control part (209) controls both a AC sequence to be used in a primary spreading in a spreading part (214) and a Walsh sequence to be used in a secondary spreading in a spreading part (217) so as to allow a very small circular shift interval of the ZC sequence to absorb the interference components remaining in the response signal; the spreading part (214) uses the ZC sequence set by the control part (209) to primary spread the response signal; and the spreading part (217) uses the Walsh sequence set by the control part (209) to secondary spread the response signal to which CP has been added.

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Номер записи: 70

15-03-2012 дата публикации

SCHEDULING DEVICE AND SCHEDULING METHOD

Номер: US20120063469A1

Автор: Takashi Iwai, Akihiko Nishio, Daichi Imamura, Kenichi Miyoshi, Megumi Ichikawa, Yoshihiko Ogawa, Sadaki Futagi, IWAI TAKASHI, NISHIO AKIHIKO, IMAMURA DAICHI, MIYOSHI KENICHI, ICHIKAWA MEGUMI, OGAWA YOSHIHIKO, FUTAGI SADAKI

Принадлежит:

Provided are a scheduling device and a scheduling method, in which the amount of signaling of frequency resource allocation information can be reduced while the system throughput is maintained. In a base station device (), a scheduling unit () selects, as an allocation resource for a terminal to which resources are to be allocated, at most one cluster band in each of a plurality of allocatable ranges set within a system band and generates allocation resource information including information relating to the selected cluster, and an encoding unit (), a modulation unit (), and a transmission RF unit () which serve as a transmission means transmit the allocation resource information generated by the scheduling unit () to the terminal to which the resources are to be allocated. Among the plurality of allocatable ranges, a first allocatable range is the entire system band, while a second allocatable range is a low frequency-side band or a high frequency-side band when the system band is divided into halves. 1. A scheduling apparatus comprising:a scheduler that selects a maximum of one cluster band for each of a plurality of assignable ranges set in a system band, as assignment resources for a terminal subject to resource assignment, and generates assignment resource information containing information on the selected cluster band; anda transmission section that transmits the generated assignment resource information to the terminal subject to resource assignment;wherein a first assignable range is the whole system band, and a second assignable range is a partial band of the system band.2. The scheduling apparatus according to claim 1 , wherein the second assignable range is a lower frequency band or a higher frequency band when the system band is divided into half.3. The scheduling apparatus according to claim 1 , wherein the second assignable range is set in a band not including both ends of the system band.4. The scheduling apparatus according to claim 1 , wherein the ...

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Номер записи: 71

09-07-2013 дата публикации

Radio transmission appratus and radio transmission method that switch between communication methods

Номер: US0008483134B2

Автор: Takashi Iwai, Katsuhiko Hiramatsu, Daichi Imamura, Akihiko Nishio, Seigo Nakao, Atsushi Sumasu, Yoshihiko Ogawa, Sadaki Futagi, IWAI TAKASHI, HIRAMATSU KATSUHIKO, IMAMURA DAICHI, NISHIO AKIHIKO, NAKAO SEIGO, SUMASU ATSUSHI, OGAWA YOSHIHIKO, FUTAGI SADAKI

Принадлежит: Panasonic Corporation, IWAI TAKASHI, HIRAMATSU KATSUHIKO, IMAMURA DAICHI, NISHIO AKIHIKO, NAKAO SEIGO, SUMASU ATSUSHI, OGAWA YOSHIHIKO, FUTAGI SADAKI, PANASONIC CORP, PANASONIC CORPORATION

A radio transmission apparatus and a radio transmission method suppress lowering of the throughput caused by switching between the single carrier communication method and the multi-carrier communication method while suppressing increase in the signaling amount. A PHR threshold value setter sets a threshold value at a position greater by a predetermined value than the PHR at which the throughput performance of the SC-FDMA coincides with that of the OFDMA. A trigger signal transmission judger judges that a mobile station transmits a trigger signal for switching from the OFDMA to the SC-FDMA if the PHR in the OFDMA communication method is lower than the threshold value.

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Номер записи: 72

12-08-2014 дата публикации

Wireless communication device, signal relay method, and signal allocation method

Номер: US0008804601B2

Автор: Ayako Horiuchi, Seigo Nakao, Yasuaki Yuda, Daichi Imamura

Принадлежит: Panasonic Intellectual Property Corporation of America

To flexibly change subframes of a backhaul link and an access link. A wireless communication device according to the present invention is for relaying a signal between a base station and a mobile station, including: a receiver that receives the signal from the base station or the mobile station; a transmitter that transmits the signal to the base station or the mobile station; and a changeover unit that switches an operation mode to a receiving mode for receiving the signal from the base station or the mobile station, or a transmitting mode for transmitting the signal to the base station or the mobile station, wherein the changeover unit switches from the transmitting mode to the receiving mode in a subframe set to an MBSFN subframe by the wireless communication device among subframes subsequent to a subframe in which a NACK for requiring retransmission by the base station is transmitted.

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Номер записи: 73

25-03-2014 дата публикации

Terminal device and retransmission control method

Номер: US0008681602B2

Автор: Seigo Nakao, Akihiko Nishio, Ayako Horiuchi, Daichi Imamura

Принадлежит: Panasonic Corporation

Provided are a terminal device and a retransmission control method that make it possible to minimize increases in overhead in an uplink control channel (PUCCH), even if channel selection is used as the method to transmit response signals during carrier-aggregation communication using a plurality of downlink unit bands. On the basis of the generation status of uplink data and error-detection results obtained by a CRC unit, a control unit in the provided terminal uses response signal transmission rules to control the transmission of response signals or uplink control signals that indicate the generation of uplink data. If an uplink control signal and a response signal are generated simultaneously within the same transmission time unit, the control unit changes the resources allocated to the response signal and/or the phase point of the response signal in accordance with the number and position of ACKs within the error-detection result pattern.

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Номер записи: 74

05-02-2013 дата публикации

Radio communication device and constellation control method

Номер: US0008369382B2

Автор: Seigo Nakao, Daichi Imamura, NAKAO SEIGO, IMAMURA DAICHI

Принадлежит: Panasonic Corporation, PANASONIC CORP, NAKAO SEIGO, IMAMURA DAICHI, PANASONIC CORPORATION

A base station is provided for receiving an acknowledgement or negative acknowledgement (ACK/NACK) signal, including a transmitting unit configured to transmit a control signal using one or a plurality of control channel elements (CCE(s)). The base station also includes a receiving unit configured to receive an ACK/NACK signal, the ACK/NACK signal being multiplied by an orthogonal sequence, by a sequence defined by a cyclic shift, and by either a first value or a second value, wherein the first value rotates a constellation of the ACK/NACK signal by 0 degrees and the second value rotates the constellation of the ACK/NACK signal by N degrees, which is different from 0 degrees.

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Номер записи: 75

10-12-2019 дата публикации

Wireless communication device and method for controlling transmission power

Номер: US0010506525B2

Автор: Takashi Iwai, Daichi Imamura, Akihiko Nishio, Yoshihiko Ogawa, Shinsuke Takaoka, IWAI TAKASHI, IMAMURA DAICHI, NISHIO AKIHIKO, OGAWA YOSHIHIKO, TAKAOKA SHINSUKE, Iwai, Takashi, Imamura, Daichi, Nishio, Akihiko, Ogawa, Yoshihiko, Takaoka, Shinsuke

Принадлежит: Sun Patent Trust, SUN PATENT TRUST

Disclosed is a wireless communication device that can suppress an increase in power consumption of a terminal while preventing the degradation of SINR measurement precision resulting from TPC errors in a base station. A terminal controls the transmission power of a second signal by adding an offset to the transmission power of a first signal; an offset-setting unit sets an offset correction value in response to a transmission time gap between a third signal transmitted the previous time and the second signal transmitted this time; and a transmission power control unit controls the transmission power of the second signal using the correction value.

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Номер записи: 76

09-01-2014 дата публикации

BASE STATION APPARATUS, COMMUNICATION METHOD, TERMINAL APPARATUS AND INTEGRATED CIRCUIT

Номер: US20140010191A1

Автор: Seigo Nakao, Akihiko Nishio, Daichi Imamura, Takahisa Aoyama, NAKAO SEIGO, NISHIO AKIHIKO, IMAMURA DAICHI, AOYAMA TAKAHISA

Принадлежит: Panasonic Corporation

A base station executes communication using the uplink unit band and a plurality of downlink unit bands correlated to the uplink unit band. The base station includes: a PDCCH generation unit which includes the uplink allocation information relating to the uplink unit band only in some of the channel signals of each of the downlink unit bands; and a padding unit which adds zero information to allocation information only in the selected some channel signals having the bandwidth of the corresponding downlink unit band smaller than that of the uplink unit band until the downlink allocation information size becomes equal to the uplink allocation information size.

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Номер записи: 77

19-07-2007 дата публикации

Wireless transmission apparatus and wireless transmission method

Номер: US20070165521A1

Автор: Rahul Malik, Pek Yew Tan, Daichi Imamura, Katsuyoshi Naka

Принадлежит: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

A wireless transmission apparatus that improves throughput in a wireless communication network system. In this apparatus, MT units of transmission/reception sections (122-1 to 122-MT) respectively correspond to MT units of antennas (121-1 to 121-MT) and transmit a preamble signal and a data signal via corresponding antennas (121-1 to 121-MT). MT units of transmission/reception sections (122-1 to 122-MT) use subcarriers allocated per antennas (121-1 to 121-MT) out of subcarriers (141, 142, 143 and 144) in preamble signal transmission. Furthermore, MT units of transmission/reception section (122-1 to 122-MT) use a subcarrier (140) having a frequency different from subcarriers (141, 142, 143 and 144) in data signal transmission.

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Номер записи: 78

26-08-2014 дата публикации

Base station apparatus, communication method, terminal apparatus and integrated circuit

Номер: US0008817819B2

Автор: Seigo Nakao, Akihiko Nishio, Daichi Imamura, Takahisa Aoyama

Принадлежит: Panasonic Intellectual Property Corporation of America

A base station executes communication using the uplink unit band and a plurality of downlink unit bands correlated to the uplink unit band. The base station includes: a PDCCH generation unit which includes the uplink allocation information relating to the uplink unit band only in some of the channel signals of each of the downlink unit bands; and a padding unit which adds zero information to allocation information only in the selected some channel signals having the bandwidth of the corresponding downlink unit band smaller than that of the uplink unit band until the downlink allocation information size becomes equal to the uplink allocation information size.

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Номер записи: 79

05-01-2017 дата публикации

REFERENCE SIGNAL RECEPTION AND CQI COMPUTATION METHOD AND WIRELESS COMMUNICATION APPARATUS

Номер: US20170005771A1

Автор: Akihiko Nishio, Seigo Nakao, Daichi Imamura

Принадлежит:

A wireless communication base station apparatus which is able to prevent deterioration in the throughput of LTE terminals even when LTE terminals and LTE+ terminals coexist. In this apparatus, based on the mapping pattern of the reference signals used only in LTE+ terminals, a setting unit sets, in each subframe, the resource block groups where the reference signals used only by the LTE+ terminals are mapped. For symbols mapped to the antennas, an mapping unit maps, to all the resource blocks within one frame, cell specific reference signals used for both LTE terminals and LTE+ terminals. For the symbols mapped to the antennas, the mapping unit maps, to the plurality of resource blocks, of which part of the resource block groups is comprised, in the same subframe within one frame, the cell specific reference signals used only for LTE+ terminals, based on the setting results inputted from the setting unit.

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Номер записи: 80

20-06-2013 дата публикации

BASE STATION AND CONTROL INFORMATION TRANSMISSION METHOD

Номер: US20130155990A1

Автор: Akihiko Nishio, Hidenori Matsuo, Ayako Horiuchi, Daichi Imamura

Принадлежит: Panasonic Corporation

This base station is capable of suppressing degradation of data throughput even when a DCI for a terminal connected to the base station is transmitted via an R-PDCCH region. In this base station, a PDCCH generation unit () generates control information transmitted via a first control channel that is mapped to the same resource region as a resource region to which data for the terminal () is allocated, or control information transmitted via a second control channel that is mapped to a resource region that differs from the abovementioned resource region. A transmission RF unit () transmits the generated control information. Here, the amount of control information in the first control channel is less than the amount of control information in the second control channel. 1. A base station comprising:a generation section that generates control information transmitted in a first control channel mapped on a resource region that is the same as a resource region to which data for a terminal is allocated or control information transmitted in a second control channel mapped on a resource region that is different from the resource region; anda transmission section that transmits the generated control information,wherein the amount of information of the control information in the first control channel is smaller than the amount of information of the control information in the second control channel.2. The base station according to claim 1 , whereinthe generation section generates the control information that includes a setting value set for the terminal; anda range of the setting value settable in the first control channel differs from a range of the setting value settable in the second control channel.3. The base station according to claim 2 , wherein the range of the setting value settable in the first control channel is limited more severely than the range of the setting value settable in the second control channel.4. The base station according to claim 2 , wherein the range ...

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Номер записи: 81

10-05-2018 дата публикации

COMMUNICATION APPARATUS AND REFERENCE SIGNAL RECEIVING METHOD

Номер: US20180131460A1

Автор: Takashi Iwai, Daichi Imamura, Akihiko Nishio, Yoshihiko Ogawa, Masaru Fukuoka

Принадлежит:

Provided are a wireless communication apparatus and a reference signal generating method, wherein inter-cell interference is reduced inside and outside a CoMP set. A CoMP mode setting unit (101) sets whether the terminal (100) thereof is a CoMP terminal or a Non-CoMP terminal. When the terminal (100) is set as a Non-CoMP terminal, the hopping pattern calculating unit (104) calculates a ZC sequence number to be used as the transmission timing, from among all the ZC sequence numbers that can be used within the system. When the terminal (100) is set as a CoMP terminal, the hopping pattern calculating unit (104) calculates a ZC sequence number to be used as the transmission timing, by hopping the ZC sequence numbers to be used within the CoMP set. A ZC sequence generating unit (105) generates a ZC sequence to be used as an SRS, using the calculated ZC sequence number.

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Номер записи: 82

11-08-2011 дата публикации

WIRELESS COMMUNICATION BASE STATION EQUIPMENT, WIRELESS COMMUNICATION TERMINAL DEVICE AND SEARCH SPACE SETTING METHOD

Номер: US20110194525A1

Автор: Akihiko Nishio, Seigo Nakao, Daichi Imamura, Masayuki Hoshino, NISHIO AKIHIKO, NAKAO SEIGO, IMAMURA DAICHI, HOSHINO MASAYUKI

Принадлежит: Panasonic Corporation

Disclosed is wireless communication base station equipment in which CCE allocation can be flexibly performed without collision of ACK/NACK signals between a plurality of unit bands, even when wideband transmission is performed exclusively on a downlink circuit. In this equipment, an allocation unit (105) sets up mutually different search spaces for each of a plurality of downlink unit bands, with respect to wireless communication terminal devices that communicate using a plurality of downlink unit bands, and allocates resource allocation information of downlink circuit data destined for the wireless communication terminal devices to CCEs in mutually different search spaces for each of the plurality of downlink unit bands, and an ACK/NACK reception unit (119); extracts a response signal in respect of the downlink circuit data from the uplink control channel associated with the CCE to which the resource allocation information of this downlink circuit data was allocated.

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Номер записи: 83

14-10-2014 дата публикации

Integrated circuit for random access method and apparatus

Номер: US0008861329B2

Автор: Daichi Imamura, Sadaki Futagi, Atsushi Matsumoto, Takashi Iwai, Tomofumi Takata, IMAMURA DAICHI, FUTAGI SADAKI, MATSUMOTO ATSUSHI, IWAI TAKASHI, TAKATA TOMOFUMI

Принадлежит: Optis Wireless Technology, LLC, OPTIS WIRELESS TECHNOLOGY LLC, OPTIS WIRELESS TECHNOLOGY, LLC

A mobile station apparatus includes a receiving unit configured to receive control information; a selecting unit configured to randomly select a sequence from a plurality of sequences contained in one group of a plurality of groups, into which a predetermined number of sequences generated from a plurality of base sequences are grouped and which are respectively associated with different amounts of data or reception qualities; and a transmitting unit for transmitting the selected sequence. The predetermined number of sequences are grouped by partitioning the predetermined number of sequences, in which sequences generated from the same base sequence and having different cyclic shifts are arranged in an increasing order of the cyclic shifts. A position at which the predetermined number of sequences are partitioned is determined based on the control information, and a number of sequences contained in each of the plurality of groups varies in accordance with the control information.

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Номер записи: 84

01-05-2012 дата публикации

Radio transmitting apparatus and radio transmitting method

Номер: US0008170136B2

Автор: Daichi Imamura, Takashi Iwai, Atsushi Matsumoto, Sadaki Futagi, Tomofumi Takata, IMAMURA DAICHI, IWAI TAKASHI, MATSUMOTO ATSUSHI, FUTAGI SADAKI, TAKATA TOMOFUMI

Принадлежит: Panasonic Corporation, IMAMURA DAICHI, IWAI TAKASHI, MATSUMOTO ATSUSHI, FUTAGI SADAKI, TAKATA TOMOFUMI, PANASONIC CORP, PANASONIC CORPORATION

Disclosed are a radio sending device and a radio sending method for improving a throughput while keeping a receiving quality. In this radio sending device, an MCS switching control unit (102) applies an MCS parameter having a lower quality required than that of the MCS parameter to be applied to send data arranged at other than the two end portions of a block, to send data arranged at the two end portions of the block, and a CP adding unit (105) adds such a CP to the leading end of the block as is created by copying the trailing end portion of the block composed of the send data, to which the MCS parameter is applied by the MCS switching control unit (102), with a length less than the delay time of the maximum delay wave. A send RF unit (106) sends the send data, in which the CP is added to the leading end of the block, from an antenna (107).

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Номер записи: 85

10-11-2022 дата публикации

TERMINAL STATION APPARATUS, BASE STATION APPARATUS, TRANSMISSION METHOD AND CONTROL METHOD

Номер: US20220360352A1

Автор: Yoshihiko Ogawa, Akihiko Nishio, Takashi Iwai, Seigo Nakao, Daichi Imamura, Atsushi Sumasu

Принадлежит:

A terminal apparatus includes circuitry and a transmitter. The circuitry, in operation, generates a reference signal using a cyclic shift value and an orthogonal sequence, which are associated with each other. The orthogonal sequence is one of two orthogonal sequences corresponding to a first orthogonal sequence [1, 1] and a second orthogonal sequence [1, −1]. The cyclic shift value is one of 12 cyclic shift values ranging from 0 to 11. The transmitter, in operation, transmits the reference signal multiplexed with a data signal. Two of the cyclic shift values having a difference of 6 are respectively associated with the two orthogonal sequences.

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Номер записи: 86

03-11-2020 дата публикации

Communication method and communication apparatus

Номер: US0010826639B2

Автор: Zhi Zhang, Ming Xu, Masayuki Hoshino, Seigo Nakao, Daichi Imamura, ZHANG ZHI, XU MING, HOSHINO MASAYUKI, NAKAO SEIGO, IMAMURA DAICHI, Zhang, Zhi, Xu, Ming, Hoshino, Masayuki, Nakao, Seigo, Imamura, Daichi

Принадлежит: Sun Patent Trust, SUN PATENT TRUST

The present disclosure provides an orthogonal codes based code division multiplexing method of performing the code division multiplexing of demodulation reference signals in multiple layers of resource blocks by using orthogonal matrices, the method comprising: changing the order of chips in particular rows of a first orthogonal matrix to obtain a second orthogonal matrix with the changed order of chips; and multiplying the chips in respective rows of the second orthogonal matrix by the demodulation reference signals in corresponding layers of resource blocks correspondingly in the time direction to obtain code division multiplexing signals. The technical scheme of the present disclosure can improve the power jitter situation of downlink signals on the time, thereby the usage efficiency of the power amplifier at the base station side can be improved.

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Номер записи: 87

05-08-2014 дата публикации

Wireless communication apparatus and reference signal generating method

Номер: US0008797986B2

Автор: Takashi Iwai, Daichi Imamura, Akihiko Nishio, Yoshihiko Ogawa, Masaru Fukuoka, IWAI TAKASHI, IMAMURA DAICHI, NISHIO AKIHIKO, OGAWA YOSHIHIKO, FUKUOKA MASARU

Принадлежит: Panasonic Intellectual Property Corporation of America, IWAI TAKASHI, IMAMURA DAICHI, NISHIO AKIHIKO, OGAWA YOSHIHIKO, FUKUOKA MASARU, PANASONIC IP CORP AMERICA, PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Provided are a wireless communication apparatus and a reference signal generating method, wherein inter-cell interference is reduced inside and outside a CoMP set. A CoMP mode setting unit (101) sets whether the terminal (100) thereof is a CoMP terminal or a Non-CoMP terminal. When the terminal (100) is set as a Non-CoMP terminal, the hopping pattern calculating unit (104) calculates a ZC sequence number to be used as the transmission timing, from among all the ZC sequence numbers that can be used within the system. When the terminal (100) is set as a CoMP terminal, the hopping pattern calculating unit (104) calculates a ZC sequence number to be used as the transmission timing, by hopping the ZC sequence numbers to be used within the CoMP set. A ZC sequence generating unit (105) generates a ZC sequence to be used as an SRS, using the calculated ZC sequence number.

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Номер записи: 88

24-07-2018 дата публикации

Radio transmission device and radio transmission method

Номер: US0010034309B2

Автор: Takashi Iwai, Daichi Imamura, Sadaki Futagi, Atsushi Matsumoto, Tomofumi Takata, IWAI TAKASHI, IMAMURA DAICHI, FUTAGI SADAKI, MATSUMOTO ATSUSHI, TAKATA TOMOFUMI, Iwai, Takashi, Imamura, Daichi, Futagi, Sadaki, Matsumoto, Atsushi, Takata, Tomofumi

Принадлежит: Godo Kaisha IP Bridge 1, GODO KAISHA IP BRIDGE 1

A mobile station includes communication control circuitry that selects a preamble contained in a first Random Access Preamble group when a message size based on data available for transmission does not meet a first condition or when a value calculated based on a reference signal received power of downlink does not meet a second condition, a preamble contained in a second Random Access Preamble group when the message size based on data available for transmission meets the first condition and the value calculated based on the reference signal received power of downlink meets the second condition, and a preamble contained in the third Random Access Preamble group for a handover, independent of the message size based on data available for transmission and the value calculated based on the reference signal received power of downlink. The communication control circuitry also generates and transmits a selected preamble.

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Номер записи: 89

23-11-2017 дата публикации

REFERENCE SIGNAL RECEPTION AND CQI COMPUTATION METHOD AND WIRELESS COMMUNICATION APPARATUS

Номер: US20170338933A1

Автор: Akihiko Nishio, Seigo Nakao, Daichi Imamura

Принадлежит:

A wireless communication base station apparatus which is able to prevent deterioration in the throughput of LTE terminals even when LTE terminals and LTE+ terminals coexist. In this apparatus, based on the mapping pattern of the reference signals used only in LTE+ terminals, a setting unit sets, in each subframe, the resource block groups where the reference signals used only by the LTE+ terminals are mapped. For symbols mapped to the antennas, an mapping unit maps, to all the resource blocks within one frame, cell specific reference signals used for both LTE terminals and LTE+ terminals. For the symbols mapped to the antennas, the mapping unit maps, to the plurality of resource blocks, of which part of the resource block groups is comprised, in the same subframe within one frame, the cell specific reference signals used only for LTE+ terminals, based on the setting results inputted from the setting unit.

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Номер записи: 90

21-02-2013 дата публикации

TERMINAL APPARATUS AND RESPONSE SIGNAL MAPPIING METHOD

Номер: US20130044720A1

Автор: Seigo Nakao, Daichi Imamura

Принадлежит: PANASONIC CORPORATION

This invention relates to a terminal apparatus that can possibly reduce situations in which upstream channel data are punctured by a plurality of response signals. When having received at least one piece of downstream allocation control information corresponding to a second downstream unit band, which is other than a first downstream unit band, of a plurality of unit bands, a control unit () maps a plurality of response signals, which are corresponding to the respective ones of the plurality of downstream unit bands established, to a first resource corresponding to the plurality of downstream unit bands established. When having received only the downstream allocation control information corresponding to the first downstream unit band of the plurality of unit bands established, the control unit () maps the response signal, which is corresponding to the first downstream unit band, to a second resource corresponding to the first downstream unit band. 1. A terminal apparatus that communicates with a base station , using some or all of a plurality of configured downlink component carriers , the apparatus comprising:a receiving section that receives downlink allocation control information portions transmitted through downlink control channels of the plurality of downlink component carriers and downlink data transmitted through a downlink data channel indicated by the downlink allocation control information portions;a generating section that generates a response signal based on success or failure in receiving the downlink data; anda mapping section that maps the response signal to an uplink resource, whereinupon receipt of at least one of the downlink allocation control information portions that corresponds to a second downlink component carrier other than a first downlink component carrier among the plurality of component carriers, the mapping section maps the plurality of response signals respectively corresponding to the plurality of downlink component carriers to first ...

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Номер записи: 91

18-12-2008 дата публикации

Wireless Communication Apparatus and Wireless Communication Method

Номер: US20080310530A1

Автор: Daichi Imamura, Akihiko Nishio, Kenichi Kuri, Kenichi Miyoshi

Принадлежит: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD

A wireless communication apparatus and a wireless communication method wherein even when the permissible delay amount of data is small, the permissible delay thereof can be satisfied. A data type determining part (101) determines whether the delay of transport data or control information should be allowed or not. A pilot signal insertion control part (102) decides, based on pilot insertion interval information and allowable delay information, that a pilot signal is placed adjacently to data that is not allowed to delay. A multiplexing part (106) multiplexes encoded and modulated transport data with the pilot signal generated by a pilot signal generating part (105) in such a manner that realizes the placement decided by the pilot signal insertion control part (102).

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Номер записи: 92

26-01-2021 дата публикации

Communication apparatus and communication method

Номер: US0010903947B2

Автор: Masayuki Hoshino, Seigo Nakao, Daichi Imamura, HOSHINO MASAYUKI, NAKAO SEIGO, IMAMURA DAICHI, Hoshino, Masayuki, Nakao, Seigo, Imamura, Daichi

Принадлежит: Sun Patent Trust, SUN PATENT TRUST

A data alignment method capable of preventing degradation in demodulation performance due to variation in signal qualities when a data signal to which a Turbo code is applied is transmitted simultaneously from a plurality of cells. The method divides signal components to be used for data alignment into resources common to all the cells and resources dependent on the cells and transmits encoded and rate-matched data with the first half thereof aligned to the resources common to all the cells and the second half thereof aligned to the resources dependent on the cells.

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Номер записи: 93

12-07-2016 дата публикации

Wireless communication base station equipment, wireless communication terminal device and search space setting method

Номер: US0009391756B2

Автор: Akihiko Nishio, Seigo Nakao, Daichi Imamura, Masayuki Hoshino, NISHIO AKIHIKO, NAKAO SEIGO, IMAMURA DAICHI, HOSHINO MASAYUKI

Принадлежит: Sun Patent Trust, SUN PATENT TRUST

Disclosed is wireless communication base station equipment in which CCE allocation can be flexibly performed without collision of ACK/NACK signals between a plurality of unit bands, even when wideband transmission is performed exclusively on a downlink circuit. In this equipment, an allocation unit (105) sets up mutually different search spaces for each of a plurality of downlink unit bands, with respect to wireless communication terminal devices that communicate using a plurality of downlink unit bands, and allocates resource allocation information of downlink circuit data destined for the wireless communication terminal devices to CCEs in mutually different search spaces for each of the plurality of downlink unit bands, and an ACK/NACK reception unit (119); extracts a response signal in respect of the downlink circuit data from the uplink control channel associated with the CCE to which the resource allocation information of this downlink circuit data was allocated.

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Номер записи: 94

03-01-2013 дата публикации

RADIO COMMUNICATION BASE STATION DEVICE AND CORRELATION SETTING METHOD

Номер: US20130003659A1

Автор: Takashi Iwai, Daichi Imamura, Tomofumi Takata, Atsushi Matsumoto, Yoshihiko Ogawa, Sadaki Futagi, IWAI TAKASHI, IMAMURA DAICHI, TAKATA TOMOFUMI, MATSUMOTO ATSUSHI, OGAWA YOSHIHIKO, FUTAGI SADAKI

Принадлежит: PANASONIC CORPORATION

Provided is a radio communication base station device which can suppress a use amount of an SRS communication resource. In this device, a correlation rule setting unit () sets a rule for correlating a preamble with an SRS transmission time interval so that the preamble transmission time band and the SRS transmission time band are in the same transmission time band. An SRS transmission band decision unit () decides a time interval of a transmission time band which can transmit the SRS according to the preamble transmission time interval inputted from a preamble transmission band decision unit () and the correlation rule setting unit (). 1. A communication device , comprising: transmit configuration information indicating subframes in which random access preambles may be transmitted to the communication device; and', 'transmit configuration information indicating subframes in which Sounding Reference Signals (SRSs) may be transmitted to the communication device; and, 'a transmitter configured to receive an SRS mapped to a last portion of a subframe; and', 'receive a random access preamble including a cyclic prefix and being followed by a guard time, wherein when the random access preamble is received in the subframe, the SRS is temporally aligned with the guard time., 'a receiver configured to2. The communication device according to wherein the SRS is received from a first mobile station and the random access preamble is received from a second mobile station.3. The communication device according to wherein nothing is transmitted by the second mobile station in the guard time of the subframe.4. The communication device according to wherein the cyclic prefix is added in the beginning of the random access preamble.5. The communication device according to wherein the random access preamble is a preamble sequence selected from a set of preamble sequences claim 1 , and the guard time is of a given time length.6. The communication device according to wherein when the random ...

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Номер записи: 95

26-05-2020 дата публикации

Communication apparatus and communication method

Номер: US0010667261B2

Автор: Toru Oizumi, Daichi Imamura, Akihiko Nishio, Hidetoshi Suzuki, OIZUMI TORU, IMAMURA DAICHI, NISHIO AKIHIKO, SUZUKI HIDETOSHI, Oizumi, Toru, Imamura, Daichi, Nishio, Akihiko, Suzuki, Hidetoshi

Принадлежит: Sun Patent Trust, SUN PATENT TRUST

The purpose of the present invention is to inhibit an increase in the amount of A/N resources, without changing the timing at which the error detection result of an SCell is notified when UL-DL configurations to be configured for each of the unit bands are different, from the timing at which the error detection result is notified when just a single unit band is configured. A control unit transmits, using a first unit band, a response signal including error detection results about data received with both the first unit band and a second unit band. In a first composition pattern set for the first unit band, an uplink communication subframe is set to be the same timing as at least an uplink communication subframe of a second composition pattern set for the second unit band.

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Номер записи: 96

14-07-2020 дата публикации

Communication apparatus and control information receiving method

Номер: US0010715287B2

Автор: Seigo Nakao, Akihiko Nishio, Daichi Imamura, NAKAO SEIGO, NISHIO AKIHIKO, IMAMURA DAICHI, Nakao, Seigo, Nishio, Akihiko, Imamura, Daichi

Принадлежит: Sun Patent Trust, SUN PATENT TRUST

In a base station, a control unit and a data size regulation unit control the data size of downstream assignment control data and upstream assignment control data in the PDCCH signal based on the communication format used between the base station and a terminal, the number of base station antennas (M) (nonnegative number), the number of terminal antennas (N) (nonnegative number), the bandwidth of the downstream band, and the bandwidth of the upstream band. Specifically, the control unit determines it is unnecessary to adjust the aforementioned data size when the selected communication format is first established between multiple antennas and when where there are multiple for one of M and N and only one for the other. The quality of downstream assignment control data is prevented from degrading, while preventing the number of blind determinations from increasing on the receiving side of the downstream control channel signal.

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Номер записи: 97

09-04-2015 дата публикации

TERMINAL APPARATUS AND RESPONSE SIGNAL MAPPIING METHOD

Номер: US20150098454A1

Автор: Seigo Nakao, Daichi Imamura, NAKAO SEIGO, IMAMURA DAICHI

Принадлежит:

This invention relates to a terminal apparatus that can possibly reduce situations in which upstream channel data are punctured by a plurality of response signals. When having received at least one piece of downstream allocation control information corresponding to a second downstream unit band, which is other than a first downstream unit band, of a plurality of unit bands, a control unit (208) maps a plurality of response signals, which are corresponding to the respective ones of the plurality of downstream unit bands established, to a first resource corresponding to the plurality of downstream unit bands established. When having received only the downstream allocation control information corresponding to the first downstream unit band of the plurality of unit bands established, the control unit (208) maps the response signal, which is corresponding to the first downstream unit band, to a second resource corresponding to the first downstream unit band.

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Номер записи: 98

16-09-2014 дата публикации

Orthogonal codes based code division multiplexing method, multiplexing device, and de-multiplexing device

Номер: US0008837270B2

Автор: Zhi Zhang, Ming Xu, Masayuki Hoshino, Seigo Nakao, Daichi Imamura, ZHANG ZHI, XU MING, HOSHINO MASAYUKI, NAKAO SEIGO, IMAMURA DAICHI

Принадлежит: Panasonic Intellectual Property Corporation of America, ZHANG ZHI, XU MING, HOSHINO MASAYUKI, NAKAO SEIGO, IMAMURA DAICHI, PANASONIC IP CORP AMERICA, PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

The present disclosure provides an orthogonal codes based code division multiplexing method of performing the code division multiplexing of demodulation reference signals in multiple layers of resource blocks by using orthogonal matrices, the method comprising: changing the order of chips in particular rows of a first orthogonal matrix to obtain a second orthogonal matrix with the changed order of chips; and multiplying the chips in respective rows of the second orthogonal matrix by the demodulation reference signals in corresponding layers of resource blocks correspondingly in the time direction to obtain code division multiplexing signals. The technical scheme of the present disclosure can improve the power jitter situation of downlink signals on the time, thereby the usage efficiency of the power amplifier at the base station side can be improved.

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Номер записи: 99

04-02-2020 дата публикации

Terminal device and related radio communication method

Номер: US0010555287B2

Автор: Seigo Nakao, Akihiko Nishio, Ayako Horiuchi, Daichi Imamura, NAKAO SEIGO, NISHIO AKIHIKO, HORIUCHI AYAKO, IMAMURA DAICHI, Nakao, Seigo, Nishio, Akihiko, Horiuchi, Ayako, Imamura, Daichi

Принадлежит: Sun Patent Trust, SUN PATENT TRUST

Provided are a terminal device and a retransmission control method that make it possible to minimize increases in overhead in an uplink control channel (PUCCH), even if channel selection is used as the method to transmit response signals during carrier-aggregation communication using a plurality of downlink unit bands. On the basis of the generation status of uplink data and error-detection results obtained by a CRC unit, a control unit in the provided terminal uses response signal transmission rules to control the transmission of response signals or uplink control signals that indicate the generation of uplink data. If an uplink control signal and a response signal are generated simultaneously within the same transmission time unit, the control unit changes the resources allocated to the response signal and/or the phase point of the response signal in accordance with the number and position of ACKs within the error-detection result pattern.

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Номер записи: 100

12-01-2012 дата публикации

WIRELESS COMMUNICATION APPARATUS AND METHOD OF TRANSMITTING SUB-PACKETS

Номер: US20120008532A1

Автор: Ichikawa Megumi, Imamura Daichi, Miyoshi Kenichi, Nakao Seigo

Принадлежит: Panasonic Corporation

A wireless communication apparatus enabling improved system throughput while limiting the amount of signaling for feedback information. In this apparatus, a setting unit () sets transmission power differently for each of a plurality of sub-packets obtained by dividing transmission data (transmission packet). Here, the setting unit () sets transmission power differently for each of the plurality of sub-packets so that the total transmission power for the plurality of sub-packets becomes the same as the transmission power that is allocated in advance to the transmission packet that constitutes the plurality of sub-packets. A dividing unit () divides the transmission data (transmission packet) into a plurality of sub-packets. Then, a transmitting wireless communication apparatus () transmits the plurality of sub-packets in order of sub-packets of higher transmission power (lower error rate). 113-. (canceled)14. A radio communication apparatus , comprising:a division section that divides a transmission packet into a plurality of sub-packets;a setting section that sets mutually different error rates to each of the plurality of sub-packets; anda transmission section that transmits the plurality of sub-packets in ascending order of the error rate.15. The radio communication apparatus according to claim 14 , wherein the transmission section transmits claim 14 , among the plurality of sub-packets claim 14 , the sub-packet with a lower error rate at an earlier time.16. The radio communication apparatus according to claim 14 , wherein the setting section sets the mutually different error rates to each of the plurality of sub-packets by setting mutually different transmission power to each of the plurality of sub-packets.17. The radio communication apparatus according to claim 16 , wherein the setting section sets the mutually different transmission power to each of the plurality of sub-packets in such a way that a total of the transmission power for each of the plurality of ...

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Номер записи: 101

12-01-2012 дата публикации

Wireless base station apparatus, wireless terminal apparatus, frequency resource allocation method, and method of forming transmission signal

Номер: US20120008589A1

Автор: Akihiko Nishio, Daichi Imamura, Seigo Nakao, Takashi Iwai, Yoshihiko Ogawa

Принадлежит: Panasonic Corp

A wireless base station apparatus and wireless terminal apparatus with a configuration which can prevent reductions in the accuracy of channel estimation when non-contiguous band transmission and SRS transmission are employed in an uplink line. In the base station apparatus ( 100 ), an allocation setting unit ( 106 ), which sets the reception band of an SRS at an SRS extraction unit ( 103 ) and sets the units of frequency allocation (RBG) at a CQI estimation unit ( 104 ) and allocation unit ( 105 ), matches the frequency position at the end of the SRS reception band to the frequency position at the end of any of the units of frequency allocation and sets the reception bandwidth of the reference signal to a natural number multiple of the bandwidth of the unit of frequency allocation. In the terminal apparatus ( 200 ), a band information setting unit ( 204 ), which sets the transmission band and units of frequency allocation (RBG), matches the frequency position at the end of the transmission band to the frequency position at the end of any of the units of frequency allocation and sets the transmission bandwidth of the SRS to a natural number multiple of the bandwidth of the unit of frequency allocation.

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Номер записи: 102

19-01-2012 дата публикации

Wireless transmission apparatus and precoding method

Номер: US20120014279A1

Автор: Daichi Imamura, Fumiyuki Adachi, Kenichi Miyoshi, Megumi Ichikawa, Seigo Nakao, Shinsuke Takaoka, Yoshiko Saito

Принадлежит: Panasonic Corp

A wireless transmission apparatus able to reliably increase outage capacity according to the state of a propagation path. This apparatus is a wireless transmission apparatus ( 100 ) which transmits a plurality of streams to a wireless reception apparatus; wherein a time/space allocation determining unit ( 107 ) determines the spatial multiplex stream number based on the desired multipath number and the number of reception antenna ports of the wireless reception apparatus, said desired multipath number being calculated based on the detected multipath number, the number of reception antenna ports, and the desired error rate for the plurality of streams; a stream dividing unit ( 109 ) divides the transmission data into a plurality of streams of that spatial multiplex stream number; a transmission weight calculation unit ( 108 ) calculates a transmission weight based on the desired multipath number, spatial multiplex stream number, and a channel estimation value; and a time precoding unit ( 1103 ) and a spatial precoding unit ( 111 ) use the transmission weight to precode the plurality of streams.

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Номер записи: 103

19-01-2012 дата публикации

WIRELESS TRANSMITTER, WIRELESS RECEIVER, AND PREAMBLE SEQUENCE GENERATION METHOD

Номер: US20120014373A1

Автор: Imamura Daichi, Miyoshi Kenichi, Saito Yoshiko

Принадлежит: Panasonic Corporation

Provided is a wireless transmitter capable of accurately specifying the number of multiplexed streams and correctly decoding the data signals when a preamble sequence transmitted from any antenna of a wireless transmitter is detected. In this device, a multiplex count determination unit () determines the number of streams used by the device itself from the same number of candidates as the number of spatially multiplexed streams. A sequence group generator () forms a plurality of preamble sequences into the same number of groups as the number of candidates, which is the number of streams. A sequence group selector () selects the group matching the number of streams determined by the multiplex count determination unit () from a plurality of groups. A preamble generator () selects the same number of preamble sequences as the number of streams in the group selected by the sequence group selector () and generates the preamble sequence used by the device itself. 18-. (canceled)9. A radio transmission apparatus comprising:a determination section that determines the number of streams used by the radio transmission apparatus out of candidates for the number of streams, the streams being spatial multiplexed;a grouping section that groups a plurality of preamble sequences into a plurality of groups, the number of the plurality groups being the same as the number of the candidates;a selection section that selects a group corresponding to the determined number of streams from the plurality of groups; anda generation section that generates preamble sequences used by the radio transmission apparatus, by selecting the same number of preamble sequences as the number of streams in the selected group.10. The radio transmission apparatus according to claim 9 , wherein the grouping section forms a set comprised of the same number of preamble sequences as the number of streams corresponding to each of the plurality of groups claim 9 , in each of the plurality of groups.11. The radio ...

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Номер записи: 104

02-02-2012 дата публикации

COMMUNICATION DEVICE AND COMMUNICATION METHOD

Номер: US20120026953A1

Автор: Futagi Sadaki, Hoshino Masayuki, Imamura Daichi, Iwai Takashi, Nakao Seigo, Nishio Akihiko, Ogawa Yoshihiko

Принадлежит: Panasonic Corporation

Disclosed are a wireless communication base station device, a wireless communication terminal device, and a wireless communication method with which the amount of signaling is reduced while maintaining a high scheduling gain. A judgment unit () stores in advance a correspondence between the number of code words and the number of clusters to reduce the maximum value for the number of clusters allocated to each terminal as the number of code words increases, and thus determines the maximum value for the number of clusters based on the number of code words acquired. Based on the number of code words for a transmission signal from a terminal, an estimated value for the reception quality that is output by an estimation unit (), and the maximum value for the number of clusters that is output by the judgment unit (), a scheduling unit () schedules the allocation of the transmission signal transmitted by each terminal to a transmission band frequency (frequency resource) so as not to exceed the maximum value for the number of clusters. 1. A communication apparatus comprising:a determination section that determines a maximum value of the number of clusters such that the maximum value of the number of clusters to allocate to another communication apparatus is reduced as the number of eodewords of a transmission signal to allocate to the other communication apparatus increases; anda scheduling section that allocates a band of a transmission signal to be transmitted by the other communication apparatus based on the determined maximum value of the number of clusters.2. The communication apparatus according to claim 1 , wherein the determination section determines the number of clusters such that an amount of signaling is equal to or less than a reference number of bits and is closest to a reference number of bits claim 1 , as the maximum value of the number of clusters according to each number of codewords.3. The communication apparatus according to claim 1 , wherein the ...

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Номер записи: 105

16-02-2012 дата публикации

INTEGRATED CIRCUIT FOR RESPONSE SIGNAL SPREADING

Номер: US20120039160A1

Автор: Hoshino Masayuki, Imamura Daichi, Nakao Seigo, Nishio Akihiko

Принадлежит: Panasonic Corporation

A wireless communication apparatus capable of minimizing the degradation of the separation characteristic of response signals to be code-multiplexed. In the apparatus, a control part () controls both a ZC sequence to be used for the primary spread in a spreading part () and a Walsh sequence to be used for the secondary spread in a spreading part () according to the associations between sequences and CCEs established in accordance with the probability of using response signal physical-resources corresponding to CCE numbers. The spreading part () performs the primary spread of the response signal by use of the ZC sequence established by the control part (). The spreading part () performs the secondary spread of the response signal, to which CP has been added, by use of the Walsh sequence established by the control part (). 1. An integrated circuit for controlling a process comprising:receiving control information transmitted on one or a plurality of control channel elements (CCEs) with consecutive CCE number(s);first-spreading a response signal with a sequence defined by a cyclic shift value, which is determined among a plurality of cyclic shift values from a resource associated with the CCE number; andsecond-spreading the first-spread response signal with an orthogonal sequence, which is determined among a plurality of orthogonal sequences from said resource,wherein different cyclic shift values used for a same orthogonal sequence are respectively determined from the resource associated with an odd CCE number and the resource associated with an even CCE number.2. The integrated circuit according to claim 1 , wherein two of the cyclic shift values claim 1 , which are used for the same orthogonal sequence and which are adjacent to each other with a predefined interval claim 1 , are respectively determined from the resource associated with an odd CCE number and the resource associated with an even CCE number.3. The integrated circuit according to claim 1 , wherein the ...

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Номер записи: 106

16-02-2012 дата публикации

Wireless communication device and wireless communication method

Номер: US20120039234A1

Автор: Daichi Imamura, Masayuki Hoshino, Seigo Nakao

Принадлежит: Panasonic Corp

A data alignment method capable of preventing degradation in demodulation performance due to variation in signal qualities when a data signal to which a Turbo code is applied is transmitted simultaneously from a plurality of cells. The method divides signal components to be used for data alignment into resources common to all the cells and resources dependent on the cells and transmits encoded and rate-matched data with the first half thereof aligned to the resources common to all the cells and the second half thereof aligned to the resources dependent on the cells.

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Номер записи: 107

16-02-2012 дата публикации

RADIO COMMUNICATION APPARATUS AND RESPONSE SIGNAL SPREADING METHOD

Номер: US20120039258A1

Автор: Hoshino Masayuki, Imamura Daichi, Nakao Seigo, Nishio Akihiko

Принадлежит: Panasonic Corporation

A wireless communication apparatus capable of minimizing the degradation in separation characteristic of a code multiplexed response signal. In this apparatus, a control part () controls both a AC sequence to be used in a primary spreading in a spreading part () and a Walsh sequence to be used in a secondary spreading in a spreading part () so as to allow a very small circular shift interval of the ZC sequence to absorb the interference components remaining in the response signal; the spreading part () uses the ZC sequence set by the control part () to primary spread the response signal; and the spreading part () uses the Walsh sequence set by the control part () to secondary spread the response signal to which PC has been added. 1. A radio communication apparatus comprising:a spreading unit configured to spread an ACK or NACK with an orthogonal sequence, which is one of plural orthogonal sequences, and with a sequence defined by a cyclic shift value, which is one of plural cyclic shift values and which is associated with the orthogonal sequence; anda transmitting unit configured to transmit the ACK or NACK, each of the plural orthogonal sequences is an orthogonal sequence comprised of 4 codes and having a length 4;', 'the plural orthogonal sequences include a first orthogonal sequence and a second orthogonal sequence, wherein a sequence comprised of 2 codes in the first half of the first orthogonal sequence is not orthogonal to a sequence comprised of 2 codes in the first half of the second orthogonal sequence, and a sequence comprised of 2 codes in the second half of the first orthogonal sequence is not orthogonal to a sequence comprised of 2 codes in the second half of the second orthogonal sequence; and', 'a cyclic shift value associated with the first orthogonal sequence is different from a cyclic shift value associated with the second orthogonal sequence., 'wherein2. The radio communication apparatus according to claim 1 , wherein:the plural orthogonal ...

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Номер записи: 108

16-02-2012 дата публикации

APPARATUS AND METHOD FOR REDUCING INTERFERENCES BETWEEN BASE STATIONS IN WIRELESS COMMUNICATION SYSTEM

Номер: US20120040701A1

Автор: Hoshino Masayuki, Imamura Daichi, Tong Hui, Xu Ming

Принадлежит: Panasonic Corporation

A method for reducing interferences between base stations in a communication system having a plurality of base stations. This method comprises the steps of: causing a user station to receive both a signal transmitted by a local-cell base station and a signal transmitted by an adjacent-cell base station, thereby measuring the SNR of the interfered link and the SNR of the leak link of the adjacent-cell base station; calculating a weighting factor of a leak power based on the measured SNR of the interfered link and the measured SNR of the leak link of the adjacent-cell base station; and determining, based on the calculated weighting factor, whether or not the leak power has to be suppressed and to what degree such suppression has to be performed. 1. A method of reducing interference between base stations in a communication system with a plurality of base stations , the method comprising the steps of:a user station receiving signals transmitted from a base station in a subject cell and a base station in a neighboring cell and thereby measuring a signal to noise ratio (SNR) of an interfered link and an SNR of a leak link of the neighboring cell base station;calculating a weighting coefficient of leak power based on the measured SNR of the interfered link and the SNR of the leak link of the neighboring cell base station; anddetermining whether or not the leak power needs to be suppressed based on the calculated weighting coefficient.2. The method according to claim 1 , wherein the weighting coefficient is a ratio between an SNR of the leak link and an SNR of the interfered link.3. The method according to claim 1 , further comprising determining a signal to leak noise ratio (SLNR) of the base station based on the calculated weighting coefficient.5. The method according to claim 3 , further comprising the base station calculating a precoding vector thereof based on the calculated SLNR and transmitting data to the respective user stations based on the calculated precoding ...

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Номер записи: 109

08-03-2012 дата публикации

RADIO COMMUNICATION BASE STATION DEVICE AND CORRELATION SETTING METHOD

Номер: US20120057495A1

Автор: Futagi Sadaki, Imamura Daichi, Iwai Takashi, MATSUMOTO Atsushi, Ogawa Yoshihiko, Takata Tomofumi

Принадлежит: Panasonic Corporation

Provided is a radio communication base station device which can suppress a use amount of an SRS communication resource. In this device, a correlation rule setting unit () sets a rule for correlating a preamble with an SRS transmission time interval so that the preamble transmission time band and the SRS transmission time band are in the same transmission time band. An SRS transmission band decision unit () decides a time interval of a transmission time band which can transmit the SRS according to the preamble transmission time interval inputted from a preamble transmission band decision unit () and the correlation rule setting unit (). 1. A mobile station apparatus comprising:a mapping unit configured to map a Sounding Reference Signal (SRS) in a subframe, in which a random access preamble is transmitted, with a space provided between the random access preamble and the SRS; anda transmitting unit configured to transmit the mapped SRS.2. The mobile station apparatus according to claim 1 , wherein said mapping unit maps the SRS in the last of the subframe.3. The mobile station apparatus according to claim 1 , wherein said mapping unit maps the SRS such that a time gap between the SRS and the random access preamble is maximized.4. The mobile station apparatus according to claim 1 , wherein the random access preamble is transmitted from a mobile station apparatus claim 1 , which is non-synchronized in an uplink.5. The mobile station apparatus according to claim 1 , wherein the random access preamble is transmitted from another mobile station apparatus.6. The mobile station apparatus according to claim 1 , wherein said transmitting unit transmits the SRS at a constant period.7. The mobile station apparatus according to claim 6 , wherein the period is defined by a number of subframes.8. The mobile station apparatus according to claim 1 , wherein said transmitting unit transmits the SRS at a period claim 1 , which is m/n times of a period at which a random access preamble ...

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Номер записи: 110

15-03-2012 дата публикации

WIRELESS COMMUNICATION TERMINAL AND COMMUNICATION METHOD

Номер: US20120063343A1

Автор: Horiuchi Ayako, Hoshino Masayuki, Imamura Daichi, Nakao Seigo, Sumasu Atsushi, Yuda Yasuaki

Принадлежит: Panasonic Corporation

To measure the channel quality of the own cell accurately in a condition where there is no interference from a neighbor cell. A wireless communication terminal according to the invention is a wireless communication terminal to be connected to a base station for transmitting and receiving data to/from the base station, the wireless communication terminal including: a receiver that receives a signal which includes control information provided for measuring a channel quality of own cell from the base station; an extractor that extracts the control information from the signal received by the receiver; a measurement section that measures, on the basis of the control information, the channel quality of the own cell in a domain where a neighbor cell does not transmit a signal; and a transmitter that transmits a measurement result of the channel quality of the own cell measured by the measurement section, to the base station. 1. A wireless communication terminal to be connected to a base station for transmitting and receiving data to and from the base station , the wireless communication terminal comprising:a receiver that is configured to receive a signal which includes control information provided for measuring a channel quality of own cell from the base station;an extractor that is configured to extract the control information from the signal received by the receiver;a first measurement section that is configured to measure the channel quality of the own cell in all time domains for the base station to perform transmission;a second measurement section that is configured, on the basis of the control information, to measure the channel quality of the own cell in a time domain for another communication station indicating a neighbor cell to stop transmission;a measurement controller that is configured, on the basis of the control information, to select between the first measurement section and the second measurement section; anda transmitter that is configured to transmit a ...

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Номер записи: 111

15-03-2012 дата публикации

SEQUENCE GENERATION METHOD AND SEQUENCE GENERATION DEVICE

Номер: US20120064837A1

Автор: Futagi Sadaki, Imamura Daichi, Inogai Kazunori, Iwai Takashi, MATSUMOTO Atsushi

Принадлежит: Panasonic Corporation

Disclosed are a sequence report method and a sequence report device for reducing a signaling amount for reporting a Zadoff-Chu sequence or a GCL sequence allocated for a cell. Indexes starting at 1 are correlated to different ZC sequences and are allocated for cells so that the indexes are continuous. When such ZC sequences are reported from BS to UE, a start index indicating the start of the continuous indexes is combined with the number of allocated sequences and they are reported as allocation sequence information by a report channel. The UE and the BS share the correlation between the ZC sequences and the indexes and the UE identifies a usable sequence number according to the correlation and the allocation sequence information reported from the BS. 1. A mobile station apparatus comprising:a receiving section configured to receive an index of at least one of sequences with consecutive indices among a plurality of sequences, which are indexed by the indices having consecutive numbers in order of generally increasing to a maximum value and then decreasing, from the maximum value, a cyclic shift amount corresponding to a Doppler shift according to a sequence number; anda transmitting section configured to transmit a preamble sequence generated from a sequence corresponding to the index that is received.2. The mobile station apparatus according to claim 1 , wherein the cyclic shift amount corresponding to the Doppler shift is a cyclic shift amount corresponding to a Doppler shift for a mobile station moving at high speed.3. The mobile station apparatus according to claim 1 , wherein the cyclic shift amount depends on the sequence number.4. A mobile station apparatus comprising:a receiving section configured to receive an index of at least one of sequences with consecutive indices among a plurality of sequences, which are indexed by the indices having consecutive numbers in order of generally increasing to a maximum value and then decreasing, from the maximum value, a ...

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Номер записи: 112

22-03-2012 дата публикации

TERMINAL DEVICE AND SIGNAL MULTIPLEXING CONTROL METHOD

Номер: US20120069826A1

Автор: Imamura Daichi, Nakao Seigo

Принадлежит: Panasonic Corporation

Provided is a terminal device which achieves an improvement in the quality of uplink data while the power consumption of the terminal is suppressed even when the uplink data and a response signal are simultaneously transmitted in carrier aggregation. Specifically provided is a terminal device () which communicates with a base station device using a unit band group configured from N (N is a natural number of 2 or more) downlink unit bands and uplink unit bands, wherein when only uplink assignment control information is received in a first downlink unit band of the unit band group and only downlink assignment control information is received in a second downlink unit band different from the first downlink unit band when uplink data and a response signal are transmitted within the same transmission unit time, a control unit (); time-multiplexes and transmits response signals with respect to the uplink data and downlink data transmitted through a downlink data channel indicated by the downlink assignment control information received in the second downlink unit band, through an uplink data channel indicated by the uplink assignment control information received in the first downlink unit band. 1. A terminal apparatus that communicates with a base station apparatus using a component band group comprised of N (where N is a natural number equal to 2 or above) downlink component bands and uplink component bands , and transmits a response signal based on an error detection result of downlink data arranged in a downlink component band through an uplink control channel in an uplink component band corresponding to the downlink component band , the terminal apparatus comprising:a control information receiving section that receives uplink allocation control information and downlink allocation control information transmitted through downlink control channels of the N downlink component bands;a downlink data receiving section that receives downlink data transmitted through a downlink ...

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Номер записи: 113

22-03-2012 дата публикации

Communication apparatus and communication method

Номер: US20120069920A1

Автор: Akihiko Nishio, Daichi Imamura, Kenichi Kuri, Kenichi Miyoshi

Принадлежит: Panasonic Corp

A wireless communication apparatus and a wireless communication method wherein even when the permissible delay amount of data is small, the permissible delay thereof can be satisfied. A data type determining part ( 101 ) determines whether the delay of transport data or control information should be allowed or not. A pilot signal insertion control part ( 102 ) decides, based on pilot insertion interval information and allowable delay information, that a pilot signal is placed adjacently to data that is not allowed to delay. A multiplexing part ( 106 ) multiplexes encoded and modulated transport data with the pilot signal generated by a pilot signal generating part ( 105 ) in such a manner that realizes the placement decided by the pilot signal insertion control part ( 102 ).

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Номер записи: 114

22-03-2012 дата публикации

COMMUNICATION APPARATUS AND COMMUNICATION METHOD

Номер: US20120069939A1

Автор: Imamura Daichi, KURI Kenichi, MYOSHI Kenichi, Nishio Akihiko

Принадлежит: Panasonic Corporation

A wireless communication apparatus and a wireless communication method wherein even when the permissible delay amount of data is small, the permissible delay thereof can be satisfied. A data type determining part () determines whether the delay of transport data or control information should be allowed or not. A pilot signal insertion control part () decides, based on pilot insertion interval information and allowable delay information, that a pilot signal is placed adjacently to data that is not allowed to delay. A multiplexing part () multiplexes encoded and modulated transport data with the pilot signal generated by a pilot signal generating part () in such a manner that realizes the placement decided by the pilot signal insertion control part (). 1. A communication apparatus comprising:a receiving unit configured to receive at least one of a pilot signal for control information and a pilot signal for data to a symbol; anda demodulating unit configured to demodulate at least one of the control information and the data using the pilot signal,wherein the pilot signal is mapped such that a number of symbols to which the pilot signal for the control information is mapped are greater than a number of symbols to which the pilot signal for the data is mapped.2. The communication apparatus according to claim 1 , further comprises a channel estimating unit configured to perform a channel estimation using the pilot signal claim 1 , wherein said demodulating unit demodulates at least of the control information and the data based on the channel estimation.3. The communication apparatus according to claim 1 , wherein the pilot signal is mapped such that a number of symbols claim 1 , to which the pilot signal for the control information is mapped claim 1 , per a predefined time claim 1 , are greater than a number of symbols claim 1 , to which the pilot signal for the data is mapped claim 1 , per the predefined time.4. The communication apparatus according to claim 1 , wherein ...

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Номер записи: 115

29-03-2012 дата публикации

WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD

Номер: US20120076040A1

Автор: Hoshino Masayuki, Imamura Daichi, Nakao Seigo, Nishio Akihiko, Yuda Yasuaki

Принадлежит: Panasonic Corporation

To suppress concentration of channel quality information requests and reports in a case of discontinuously transmitting reference signals at specific resources in a time domain, and thereby preventing degradation in throughput. A transmission apparatus (eNB) transmits an instruction of CSI request distributed for each reception apparatus in a subframe concurrently with or earlier than a reference signal CSI-RS to each of reception apparatuses (UE, UE). Each of the reception apparatuses (UE, UE) detects the CSI request from the transmission apparatus and calculates CSI from a channel estimation value of CSI-RS received thereafter. Then, the reception apparatus identifies CSI report subframe of the own apparatus from CSI report interval information of a given time interval notified in advance, the subframe in which the CSI request is detected and transmission timing of CSI-RS, and transmits a feedback signal including CSI report value by using PUSCH at the timing of the CSI report subframe. 1. A wireless communication apparatus , comprising:a reference signal generator that is configured to generate a reference signal for allowing a reception apparatus serving as a communication party to calculate a channel quality of a transmission channel;a channel quality information request setting section that is configured to set a transmission timing of a channel quality information request for causing channel quality information with respect to the reference signal to be fed back from the reception apparatus so that timings are set to be temporally distributed over the plurality of reception apparatuses simultaneously with or before a transmission timing of the reference signal to be discontinuously transmitted on the time axis;a channel quality information report setting section that is configured to set a transmission timing of a channel quality information report to be transmitted from the reception apparatus in response to the channel quality information request so that a ...

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Номер записи: 116

05-04-2012 дата публикации

WIRELESS COMMUNICATION RELAY STATION APPARATUS, WIRELESS COMMUNICATION APPARATUS, WIRELESS COMMUNICATION RELAY METHOD, AND WIRELESS COMMUNICATION METHOD

Номер: US20120082085A1

Автор: Horiuchi Ayako, Imamura Daichi, Nakao Seigo, Yuda Yasuaki

Принадлежит: Panasonic Corporation

The present invention provides a wireless communication relay station apparatus, a wireless communication apparatus, a wireless communication relay method and a wireless communication method which are capable of effectively utilizing resources and preventing loop interference. A wireless communication relay station apparatus according to the present invention is a wireless communication relay station apparatus for relaying communication between a first wireless communication apparatus and a second wireless communication apparatus in at least two or more frequency bands, the wireless communication relay station apparatus including: a transmitter for, using a first subframe, transmitting a first uplink signal to the first wireless communication apparatus in a first frequency band, and transmitting a first downlink signal to the second wireless communication apparatus in a second frequency band; and a receiver for, using a second subframe, receiving a second downlink signal from the first wireless communication apparatus in the first frequency band, and receiving a second uplink signal from the second wireless communication apparatus in the second frequency band. 1. A wireless communication relay station apparatus for relaying communication between a first wireless communication apparatus and a second wireless communication apparatus in at least two or more frequency bands , the wireless communication relay station apparatus comprising:a transmitter which is configured, in a first subframe, to transmit a first uplink signal to the first wireless communication apparatus in a first frequency band, and to transmit a first downlink signal to the second wireless communication apparatus in a second frequency band; anda receiver which is configured, in a second subframe, to receive a second downlink signal from the first wireless communication apparatus in the first frequency band, and to receive a second uplink signal from the second wireless communication apparatus in the ...

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Номер записи: 117

12-04-2012 дата публикации

INTEGRATED CIRCUIT FOR RADIO TRANSMISSION

Номер: US20120087438A1

Автор: Futagi Sadaki, Imamura Daichi, Nakao Seigo, Takata Tomofumi

Принадлежит: Panasonic Corporation

A radio transmitting device and method enables reduction of an increase of CGI memories for the control channel and an improvement of the throughput of the data channel. When multiplex transmission through the control channel and the data channel is carried out and when adaptive modulation is applied to both channels, an MCS selecting section () is provided with one CQI table for the data channel and CQI tables for the control channel, and a table selecting MCS determining section () selects one of the tables depending on the transmission bandwidth of the terminal and determines the MCS of the control channel while looking up the selected CQI table. 1. An integrated circuit for controlling a process comprising:coding control data using a modulation and coding scheme (MCS) for a data channel and an offset value, the offset value being set for each form of the control data; andtransmitting data in the data channel and the control data coded with a coding rate according to the form of the control data.2. The integrated circuit according to claim 1 , wherein the coded control data is generated with a different coding rate for each form of the control data.3. The integrated circuit according to claim 1 , wherein the control data is coded with a MCS claim 1 , which is determined based on the MCS for the data channel and the offset value.4. The integrated circuit according to claim 1 , wherein the control data is ACK/NACK or channel quality indicator (CQI).5. The integrated circuit according to claim 1 , wherein the data and the coded control data are multiplexed and transmitted.6. The integrated circuit according to claim 1 , wherein the process that the integrated circuit controls further comprises receiving control information claim 1 , and the MCS for the data channel is determined based on the received control information.7. The integrated circuit according to claim 6 , wherein the control data is coded with the received control information and the offset value.8. The ...

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Номер записи: 118

12-04-2012 дата публикации

TERMINAL APPARATUS AND RETRANSMISSION CONTROL METHOD

Номер: US20120089880A1

Автор: Imamura Daichi, Nakao Seigo, Nishio Akihiko

Принадлежит: Panasonic Corporation

A terminal apparatus and retransmission control method which can reduce the overhead of the uplink control channel in cases when ARQ is applied in communication that uses an uplink unit band and a plurality of downlink unit bands associated with the uplink unit band. Here, a first condition is set in which downlink assignment control information is transmitted from a base station by a unit band group which comprises a basic unit band, which is the downlink unit band on which a broadcast channel signal including information relating to the uplink unit band is transmitted, and a second downlink unit band other than the basic unit band. A bundling unit () will not transmit a response signal to the base station () in cases when the first condition is satisfied and a control information receiving means has failed in receiving all of the downlink assignment control information transmitted by the basic unit band and second downlink unit band, and in cases when the first condition is satisfied and the control information receiving means has succeeded in receiving only the downlink assignment control information transmitted by the second downlink unit band. 1. A terminal apparatus that communicates with a base station using a unit band group made up of a plurality of downlink unit bands and uplink unit bands , and transmits a response signal based on an error detection result of downlink data arranged in a downlink unit band through an uplink control channel of an uplink unit band corresponding to the downlink unit band , the terminal apparatus comprising:a control information receiving section that receives downlink assignment control information transmitted through downlink control channels of the plurality of downlink unit bands;a downlink data receiving section that receives the downlink data transmitted through a downlink data channel indicated by the downlink assignment control information:an error detection section that detects a reception error of the received ...

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Номер записи: 119

19-04-2012 дата публикации

TERMINAL DEVICE AND RETRANSMISSION CONTROL METHOD

Номер: US20120092982A1

Автор: Imamura Daichi, Nakao Seigo

Принадлежит: Panasonic Corporation

Provided are a terminal device and a retransmission control method which enable the avoidance of the degradation of transmission characteristics of a response signal and the minimization of the increase of the overhead of an uplink control channel when ARQ is applied in communication using an uplink unit band and a plurality of downlink unit bands associated with the uplink unit band. In a terminal (), a control unit () transmits a bundle response signal using a resource in a basic region of an uplink control channel in an uplink unit band of a unit band group when no error is detected in each of a plurality of pieces of downlink data of the unit band group, the uplink control channel in the uplink unit band being associated with a downlink control channel in a basic unit band that is a downlink unit band in which a broadcast channel signal including information relating to the uplink unit band is transmitted, and the control unit transmits the bundle response signal using a resource in an additional region of the uplink control channel when an error is detected in each of the plurality of pieces of downlink data. 1. A terminal apparatus that communicates with a base station using a unit band group made up of a plurality of downlink unit bands and an uplink unit band and transmits one bundled response signal through an uplink control channel of the uplink unit band based on an error detection result of a plurality of pieces of downlink data arranged in the plurality of downlink unit bands , the apparatus comprising:a downlink data receiving section that receives downlink data transmitted through at least one downlink data channel of the plurality of downlink unit bands;an error detection section that detects the presence or absence of a reception error of the received downlink data; anda response control section that transmits the bundled response signal using one of a first region and a second region of the uplink control channel based on a reception situation ...

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Номер записи: 120

19-04-2012 дата публикации

RADIO COMMUNICATION APPARATUSES AND RADIO COMMUNICATION METHOD

Номер: US20120093020A1

Автор: Imamura Daichi, Iwai Takashi, MATSUMOTO Atsushi, Nishio Akihiko, Ogawa Yoshihiko

Принадлежит: Panasonic Corporation

Provided are a radio communication mobile station apparatus, a radio communication base station apparatus and a radio communication method, which make it possible to correctly switch between transmission modes for a PUSCH and a PUCCH while impeding signaling overhead from increasing. A transmission mode setting unit () detects an instruction given by a base station, the instruction indicating a multiplexing method for a PUSCH and a PUCCH. A trigger information reporting determination unit () performs threshold discrimination where PHR_pucch, which is calculated by PHR_control calculation unit (), is compared with a threshold value that depends on the multiplexing method indicated by the instruction given by the base station. Specifically, in a TDM transmission mode, trigger information is reported if PHR_pucch>X[dBm] is satisfied. On the other hand, in an FDM transmission mode, the trigger information is reported if PHR_pucch Подробнее

Номер записи: 121

19-04-2012 дата публикации

METHOD AND DEVICE FOR SETTING DEMODULATION REFERENCE SIGNALS IN WIRELESS COMMUNICATION SYSTEM

Номер: US20120093124A1

Автор: Hoshino Masayuki, Imamura Daichi, Nakao Seigo, Xu Ming, Zhang Zhi

Принадлежит: Panasonic Corporation

The present invention provides a method of arranging demodulation reference signals in a radio communication system that communicates according to a coordinated scheme. Demodulation reference signals and data are transmitted to a receiving terminal through time/frequency resources of the radio communication system using a resource block as a base unit. The method includes arranging at least two orthogonal DM-RSs in two edge OFDM symbols for resource blocks of respective cells, a frequency offset existing between cells at positions of the orthogonal DM-RSs in the edge OFDM symbols, performing puncturing at positions corresponding to the orthogonal DM-RSs of the other cells in the edge OFDM symbols of the respective cells, arranging superimposing DM-RSs in the two edge OFDM symbols in a resource block of one cell and arranging the superimposing DM-RSs at positions corresponding to the resource blocks of the other cells, wherein positions of the superimposing DM-RSs are set between the positions of the orthogonal DM-RSs in the respective edge OFDM symbols. 1. A method of arranging demodulation reference signals in a radio communication system that communicates according to a coordinated scheme , the demodulation reference signals and data being transmitted to a receiving terminal through time/frequency resources of the radio communication system using a resource block as a base unit , the method comprising:a step of arranging at least two orthogonal demodulation reference signals in two edge orthogonal frequency division multiplexing symbols located on one side of a time domain and the other side of the time domain respectively in data regions of resource blocks of respective cells, a frequency offset existing between cells at positions of the orthogonal demodulation reference signals in the edge orthogonal frequency division multiplexing symbols, and performing puncturing at positions corresponding to the orthogonal demodulation reference signals of the other cells in ...

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Номер записи: 122

19-04-2012 дата публикации

WIRELESS TRANSMISSION APPARATUS AND TRANSMISSION POWER CONTROL METHOD

Номер: US20120094709A1

Автор: Imamura Daichi, Miyoshi Kenichi, Nakao Seigo, Nishio Akihiko, Ogawa Yoshihiko

Принадлежит: Panasonic Corporation

Disclosed are a wireless transmission apparatus and transmission power control method which improve the error rate characteristics of data signals even when the number of streams of data signals increases, without increasing the amount of signaling. The relationship between the number of streams of data signals in each antenna (--) and the data signal and pilot-signal transmission power ratio at each antenna (--) is stored. Specifically, a relationship where the data signal and pilot signal transmission power ratio at each antenna increases as the number of streams of data signals at each antenna increases is stored. A transmission power control unit () determines the data signal and pilot signal transmission power ratio on the basis of the information of the number of streams of data signals at each antenna (--) that were output from a decoding unit (), controls the transmission power of the pilot signals on the basis of the determined transmission power ratio, and outputs to a multiplexing unit (). 1. A radio transmission apparatus comprising:one or more antennas;a transmission power control section that increases a transmission power ratio of a pilot signal to a data signal transmitted from each of the antennas, in response to an increase in a number of streams of the data signal transmitted from each of the antennas; anda transmission section that transmits the data signal and the pilot signal for which transmission power is controlled.2. The radio transmission apparatus according to claim 1 , wherein claim 1 , when the data signal is transmitted in single carrier transmission claim 1 , in response to an increase in the number of streams of the data signal transmitted from each of the antennas claim 1 , the transmission power control section lessens an increase amount of the transmission power ratio of the pilot signal to the data signal transmitted from each of the antennas.3. The radio transmission apparatus according to claim 1 , wherein claim 1 , when the ...

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Номер записи: 123

26-04-2012 дата публикации

COMMUNICATION METHOD, COMMUNICATION TERMINAL, AND BASE STATION APPARATUS

Номер: US20120099549A1

Автор: Futagi Sadaki, Imamura Daichi, Iwai Takashi, MATSUMOTO Atsushi, Takata Tomofumi

Принадлежит: Panasonic Corporation

A radio transmitting apparatus and a radio transmitting method wherein the increase of the guard time in a random access region is reduced to secure the data transmitting region of an upstream line. In this apparatus, when a received signal power estimated by a received signal power estimating part () is the higher, a RACH format selecting part () selects a RACH format having the longer frame length. Contrarily, when a received signal power estimated by the received signal power estimating part () is the lower, the RACH format selecting part () selects a RACH format having the shorter frame length. A RACH data part arranging part () appropriately selects, in accordance with the selected RACH format, top-priority information, such as terminal identifiers, priority information, such as connection request information or band assignment request information, and non-priority information and arranges RACH data parts. 1. A communication method performed by a communication terminal transmitting control information for requesting an access to a base station , the method comprising the steps of:acquiring a frame length for transmitting the control information;arranging a terminal identifier in a frame of the frame length such that the terminal identifier is transmitted to the base station prior to other information included in the control information when the control information includes the terminal identifier; andtransmitting the frame to the base station.2. The communication method according to claim 1 , wherein the arrangement step arranges the terminal identifier and connection request information in the frame such that the terminal identifier and the connection request information are transmitted to the base station prior to a buffer status when the control information further includes the connection request information and the buffer status information.3. The communication method according to claim 2 , wherein:the control information further includes control ...

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Номер записи: 124

10-05-2012 дата публикации

Wireless communication apparatus and wireless communication method

Номер: US20120113912A1

Автор: Akihiko Nishio, Ayako Horiuchi, Daichi Imamura, Kenichi Miyoshi, Megumi Ichikawa, Seigo Nakao, Takashi Iwai, Yasuaki Yuda, Yoshihiko Ogawa

Принадлежит: Panasonic Corp

Disclosed is a wireless communication apparatus and wireless communication method wherein flexible frequency scheduling is performed without increasing the scale of the DFT (Discrete Fourier Transform) circuitry. For example, when resource allocation information is reported indicating whether or not a resource has been allocated to each of a plurality of RBGs (RB groups) into which the system bandwidth is divided, as in Type 0 allocation, if the number of reported RBs reported by the resource allocation information cannot be expressed as “2̂n×3̂m×5̂l”, an allocated RB number setting section ( 208 ) sets the number of allocated resource blocks used in the actual transmission band, corresponding to the reported RB number, to the number of resource blocks that can be represented by any of “2̂n×3̂m×5̂l”, and an allocated RB selection section ( 209 ); selects the allocated RB employed in the actual transmission band from the resource allocation information and allocated RB number

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Номер записи: 125

10-05-2012 дата публикации

RADIO BASE STATION AND RADIO COMMUNICATION METHOD

Номер: US20120115526A1

Автор: Imamura Daichi, Iwai Takashi, Nakao Seigo, Nishio Akihiko, Ogawa Yoshihiko

Принадлежит: Panasonic Corporation

Disclosed is a base station capable of minimizing in Type 0 assignment the number of resource block groups occupied by a terminal that performs frequency hopping, and thereby flexibly assigning resources in the Type 0 assignment. The base station () is used in a radio communication system in which a plurality of resource blocks constituting the system band thereof are grouped into resource block groups each consisting of P resource blocks, and the band that is not a PUCCH-assignable band to which PUCCHs assigned to both ends of the system band can be assigned is divided into a plurality of sub-bands. The base station () comprises an assignment unit () and a demapping unit (). The assignment unit () assigns a plurality of resource blocks in units of resource block groups to terminal apparatuses to be subjected to noncontiguous-band assignment. The demapping unit () extracts, from a plurality of resource blocks in a second band, data signals for which frequencies are hopped by a frequency-hopping terminal apparatus from one to another of the plurality of sub-bands. Here, the bandwidth of each of the plurality of sub-bands is a natural-number multiple of P. 1. A radio base station apparatus used in a radio communication system in which a plurality of resource blocks consisting of a system band are grouped into a plurality of resource block groups for every P resource blocks and a second band is divided into a plurality of subbands , the second band being other than a first band to which control channels assigned at both ends of the system band can be assigned , the radio base station apparatus comprising:an assignment section that assigns the plurality of resource blocks to a terminal apparatus assigned a non-continuous band in units of the resource block groups; andan extraction section that extracts a data signal frequency-hopped for every plurality of subbands by a frequency hopping terminal apparatus, from the plurality of resource blocks in the second band, ...

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Номер записи: 126

10-05-2012 дата публикации

METHOD AND DEVICE FOR ADJUSTING TIMING ADVANCE IN UPLINK MULTIPLE POINTS RECEPTION

Номер: US20120115539A1

Автор: Hoshino Masayuki, Ichikawa Megumi, Imamura Daichi, Miyoshi Kenichi, Nishio Akihiko, Xu Ming, Zhang Zhi

Принадлежит: Panasonic Corporation

A method and device for adjusting a timing advance in a communication system composed of a mobile terminal and multiple base stations is provided. The method includes steps: the multiple base stations measures channel latencies and powers of channel responses between the mobile terminal and the multiple base stations separately; the non-serving base station in the multiple base stations reports the channel latency and the power measured to a serving base station; and the serving base station determines the timing advance of the uplink of the mobile terminal according to the channel latency and the power received and the channel latency and the power which are measured by the serving base station itself, and informs the mobile base station of the timing advance. By using the method and the device, the useful power received by the uplink multi-base stations can be optimized, and the interference power can be effectively reduced. 1. A method for adjusting an uplink time advancement amount in a communication system composed of a mobile terminal and a plurality of base stations , said method comprising:a step of said plurality of base stations measuring propagation delay T (i, j) and channel response power P (i, j) from a mobile terminal to said plurality of base stations (where T (i, j) represents a propagation delay from mobile terminal i to base station j, P (i, j) represents channel response power from mobile terminal i to base station j, and i and j are natural numbers);a step of a non-serving station among said plurality of base stations reporting the measured propagation delay and power to a serving station; anda step of said serving station deciding an uplink time advancement amount of said mobile terminal based on the received propagation delay and power, and the propagation delay and power measured by said serving station itself, and reporting said time advancement amount to said mobile terminal.2. The method according to claim 1 , further comprising:a step of ...

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Номер записи: 127

17-05-2012 дата публикации

WIRELESS COMMUNICATION DEVICE, SIGNAL RELAY METHOD, AND SIGNAL ALLOCATION METHOD

Номер: US20120120867A1

Автор: Horiuchi Ayako, Imamura Daichi, Nakao Seigo, Yuda Yasuaki

Принадлежит: Panasonic Corporation

To flexibly change subframes of a backhaul link and an access link. A wireless communication device according to the present invention is for relaying a signal between a base station and a mobile station, including: a receiver that receives the signal from the base station or the mobile station; a transmitter that transmits the signal to the base station or the mobile station; and a changeover unit that switches an operation mode to a receiving mode for receiving the signal from the base station or the mobile station, or a transmitting mode for transmitting the signal to the base station or the mobile station, wherein the changeover unit switches from the transmitting mode to the receiving mode in a subframe set to an MBSFN subframe by the wireless communication device among subframes subsequent to a subframe in which a NACK for requiring retransmission by the base station is transmitted. 1: A wireless communication device for relaying a signal between a base station and a mobile station , the wireless communication device comprising:a receiver that is configured to receive the signal from the base station or the mobile station;a transmitter that is configured to transmit the signal to the base station or the mobile station; anda changeover unit that is configured to switch an operation mode to a reception mode for receiving the signal from the base station or the mobile station, or a transmission mode for transmitting the signal to the base station or the mobile station, whereinthe changeover unit is configured to switch the operation mode from the transmission mode to the reception mode in a subframe set to an MBSFN subframe by the wireless communication device among subframes subsequent to a subframe in which a NACK for requiring a retransmission of the base station is transmitted.2: The wireless communication device according to claim 1 , whereinthe wireless communication device is configured to notify the base station of a subframe to which no data is allocated ...

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Номер записи: 128

24-05-2012 дата публикации

METHOD AND DEVICE FOR SUPERIMPOSING REFERENCE SIGNAL AND DATA BASED ON SPACE DIVISION MULTIPLE ACCESS

Номер: US20120127952A1

Автор: Hoshino Masayuki, Imamura Daichi, Nakao Seigo, Tong Hui, Xu Ming

Принадлежит: Panasonic Corporation

The present invention provides a method of superimposing data signals and reference signals in a space division multiple access communication system, a base station of the communication system transmitting the first layer resource block and another layer resource block to a terminal using the same time/frequency resources, reference signals in the first layer resource block and reference signals in the other layer resource block being orthogonal to each other, the method including superimposing data signals transmitted in the first layer resource block at positions of reference signals in the first layer resource block, making a spreading sequence of the superimposed data signals orthogonal to a spreading sequence of the reference signals in the first layer resource block. The present invention can effectively use resources consumed under a multiuser MIMO system and drastically improve the system performance. 1. A method of superimposing data signals and reference signals in a space division multiple access communication system , a base station of the communication system transmitting a first layer resource block and another layer resource block to a terminal using the same time/frequency resources , reference signals in the first layer resource block and reference signals in the other layer resource block being orthogonal to each other , the method comprising:superimposing data signals transmitted in the first layer resource block at positions of reference signals in the first layer resource block and making a spreading sequence of superimposed data signals orthogonal to a spreading sequence of the reference signals in the first layer resource block.2. The method according to claim 1 , wherein the reference signals employ a code division multiplexing scheme claim 1 , and the reference signals in the first layer resource block and the reference signals in the other layer resource block occupy the same time/frequency position and use different orthogonal spreading ...

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Номер записи: 129

24-05-2012 дата публикации

TRANSMISSION APPARATUS AND TRANSMISSION METHOD

Номер: US20120128087A1

Автор: Imamura Daichi, Miyoshi Kenichi, Nishio Akihiko

Принадлежит: Panasonic Corporation

A wireless receiving apparatus capable of efficiently removing interference signals in a multicarrier communication. In a mobile station incorporating this wireless receiving apparatus, a selecting part selects a plurality of the same symbols in accordance with a mapping pattern established at the time of generating OFDM symbols in a base station. A correlation value calculating part determines correlation values between the subcarriers of the same symbols to generate an R-matrix, and further determines an inverse matrix of the R-matrix. An MMSE processing part performs an MMSE processing to determine a weight from both a P-vector received from a channel estimating part and the inverse matrix of the R-matrix received from the correlation value calculating part. Multipliers multiply each of the symbols selected by the selecting part by the weight determined by the MMSE processing part. A combining part combines the symbols as multiplied by the weight. 1. A transmission apparatus for transmitting a transmission signal to a reception apparatus using a plurality of subcarriers , the transmission apparatus comprising:a modulator that modulates a hit to generate a symbol;a repetition unit that duplicates the generated symbol to generate a plurality of same symbols; anda mapper that maps each of the plurality of same symbols onto the plurality of subcarriers in at least one of a frequency domain and a time domain, to generate the transmission signal, whereina position of each of the plurality of subcarriers onto which the plurality of same symbols are mapped is common between the transmission apparatus and another transmission apparatus belonging to a neighbor cell or a neighbor sector.2. The transmission apparatus according to claim 1 , wherein when a repetition factor in the transmission apparatus is different from a repetition factor in the other transmission apparatus claim 1 , at least two symbols among the plurality of same symbols are mapped onto at least two ...

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Номер записи: 130

07-06-2012 дата публикации

Radio communication apparatus and radio communication method

Номер: US20120140687A1

Автор: Daichi Imamura, Seigo Nakao

Принадлежит: Panasonic Corp

Provided is a radio communication device which can make Acknowledgement (ACK) reception quality and Negative Acknowledgement (NACK) reception quality to be equal to each other. The device includes: a scrambling unit ( 214 ) which multiplies a response signal after modulated, by a scrambling code “1” or “e −j(π/2) ” so as to rotate a constellation for each of response signals on a cyclic shift axis; a spread unit ( 215 ) which performs a primary spread of the response signal by using a Zero Auto Correlation (ZAC) sequence set by a control unit ( 209 ); and a spread unit ( 218 ) which performs a secondary spread of the response signal after subjected to the primary spread, by using a block-wise spread code sequence set by the control unit ( 209 ).

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Номер записи: 131

14-06-2012 дата публикации

INTEGRATED CIRCUIT FOR CONTROLLING RADIO COMMUNICATION

Номер: US20120147847A1

Автор: Hiramatsu Katsuhiko, Imamura Daichi, Iwai Takashi, MATSUMOTO Atsushi, Ogawa Yoshihiko, Takata Tomofumi

Принадлежит: Panasonic Corporation

Provided is a radio communication device which can prevent interference between SRS and PUCCH when the PUCCH transmission bandwidth fluctuates and suppress degradation of CQI estimation accuracy by the band where no SRS is transmitted. The device includes: an SRS code generation unit () which generates an SRS (Sounding Reference Signal) for measuring uplink line data channel quality; an SRS arrangement unit () which frequency-multiplexes the SRS on the SR transmission band and arranges it; and an SRS arrangement control unit () which controls SRS frequency multiplex so as to be uniform in frequency without modifying the bandwidth of one SRS multiplex unit in accordance with the fluctuation of the reference signal transmission bandwidth according to the SRS arrangement information transmitted from the base station and furthermore controls the transmission interval of the frequency-multiplexed SRS. 1. An integrated circuit for controlling a radio communication process , the process being configurable to transmit a reference signal with a wide bandwidth without frequency hopping or to transmit the reference signal with a narrow bandwidth with frequency hopping , and the process comprising:mapping the reference signal to a frequency resource, which has the narrow bandwidth that is fixed regardless of variation of the wide bandwidth in a given system bandwidth, wherein the frequency resource is uniformly dispersed in a frequency band of the wide bandwidth depending on the variation of the wide bandwidth; andtransmitting the mapped reference signal.2. The integrated circuit according to claim 1 , wherein a plurality of different wide bandwidths are configurable in the given system bandwidth.3. The integrated circuit according to claim 1 , wherein the reference signal is mapped to a plurality of the frequency resources claim 1 , wherein the frequency resource with the narrow bandwidth is a unit of transmission.4. The integrated circuit according to claim 1 , wherein the ...

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Номер записи: 132

14-06-2012 дата публикации

WIRELESS RELAY DEVICE AND WIRELESS RELAY METHOD

Номер: US20120147930A1

Автор: Imamura Daichi, Miyoshi Kenichi, Saito Yoshiko

Принадлежит: Panasonic Corporation

Disclosed is a wireless relay device wherein the number of stream multiplexes between a wireless transmission device and a wireless reception device can be increased without increasing the number of antennas for the wireless transmission device or the number of antennas for the wireless reception device. Specifically disclosed is a wireless relay device () for relaying and transmitting a signal between a wireless transmission device and a wireless reception device, which has Nrelay number (Nrelay is a natural number of 2 or more) of antenna ports, wherein a diversity reception unit () diversity-receives the signal which is transmitted from the wireless transmission device, and which has been modulated by the modulation multi-value number of M (where M=Nrelay 2) via the Nrelay number of antenna ports, a stream generating unit () divides the signal so as to generate Nrelay pieces of streams, modulation units ((-) to (-Nrelay)) QPSK-modulate the Nrelay pieces of streams, and transmission RF units ((-) to (-Nrelay)) transmit the N pieces of streams after modulation to the wireless reception device via the Nrelay number of antenna ports. 19-. (canceled)10. A radio relay apparatus that relays a signal between a radio transmission apparatus and a radio reception apparatus , comprising:N antennas ports (N is a natural number of 2 or more);a reception section that receives the signal, which is modulated using an M-ary modulation number of M (here, M≦N×K, K is a natural number of 1 or more) and transmitted from the radio transmission apparatus, via the N antenna ports;a generation section that divides the signal to generate N streams;a modulation section that modulates the N streams using an M-ary modulation number of K; anda transmission section that transmits the modulated N streams to the radio reception apparatus via the N antenna ports.11. The radio relay apparatus according to claim 10 , wherein K is 2 claim 10 , and the modulation section modulates the N streams with a ...

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Номер записи: 133

21-06-2012 дата публикации

RADIO TRANSMISSION APPARATUS, AND RADIO TRANSMISSION METHOD

Номер: US20120155519A1

Автор: Futagi Sadaki, Imamura Daichi, Iwai Takashi, MATSUMOTO Atsushi

Принадлежит: Panasonic Corporation

Provided is a communication device, which is enabled to improve the throughput of a communication system by reducing the difference of a transmission power between an SCCH and an SDCH thereby to satisfy the required quality of a PAPR. In this device, an MCS selection unit () of a transmission unit () decides, with reference to a CQI lookup table, an MCS pattern (MCS) of the SDCH, an MCS pattern (MCS) of the SCCH and information (multiplex information) on multiplex positions on the time axes of those two channels, on the basis of the CQI information. On the basis of the MCS and the MCS, encoding modulation units ( and ) perform encoding and modulating operations. According to the multiplex information, a channel multiplexing unit () time-division multiplexes the SCCH and the SDCH thereby to generate a transmission signal. 1. A receiving method for use by a receiving apparatus for receiving data and control information in a single carrier system , the method comprising:transmitting, to a mobile station, (i) information for determining a modulation and coding scheme (MCS), and (ii) offset information;receiving, from the mobile station, data modulated and coded according to an MCS that is determined by the mobile station based on the information for determining the MCS; andreceiving, from the mobile station, control information coded with a coding rate that is calculated by the mobile station according to arranged information contained in the mobile station, the arranged information defining a relationship among a coding rate portion of the MCS for the data, the offset information, and the coding rate for the control information, wherein a value of the offset information is used by the mobile station to adjust the coding rate portion of the MCS;wherein a total bit length of the offset information is smaller than a total bit length of the information for determining the MCS.2. A receiving apparatus for receiving data and control information in a single carrier system ...

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Номер записи: 134

28-06-2012 дата публикации

Integrated circuit for controlling sequence assigning method and reference signal generating method

Номер: US20120165054A1

Автор: Daichi Imamura, Sadaki Futagi, Tomofumi Takata, Yoshihiko Ogawa

Принадлежит: Panasonic Corp

Provided is a sequence allocation method capable of reducing inter-cell interference of a reference signal when a ZC sequence is used as the reference signal in a mobile communication system. In the sequence allocation method divides R×M sequences specified by a ZC sequence number r (r=1 to R) and a cyclic shift sequence number m (m=1 to M) into a plurality of sequence groups X (X=1 to R) in accordance with the transmission band width of the reference signal, so that the ZC sequence is allocated to each cell in each sequence group unit. When it is assumed that R=9 and M=6, the number of sequence is 54. Each of the sequence groups is formed by two sequences. Accordingly, the number of sequence groups is 27. The 27 types of sequence groups are allocated to each cell.

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Номер записи: 135

05-07-2012 дата публикации

TERMINAL STATION APPARATUS, BASE STATION APPARATUS, TRANSMISSION METHOD AND CONTROL METHOD

Номер: US20120170444A1

Автор: Imamura Daichi, Iwai Takashi, Nakao Seigo, Nishio Akihiko, Ogawa Yoshihiko, Sumasu Atsushi

Принадлежит: Panasonic Corporation

A terminal apparatus is disclosed wherein even in a case of applying SU-MIMO and MU-MIMO at the same time, the inter-sequence interference in a plurality of pilot signals used by the same terminal can be suppressed to a low value, while the inter-sequence interference in pilot signal between terminals can be reduced. In this terminal apparatus (): a pilot information deciding unit () decides, based on allocation control information, Walsh sequences of the respective ones of first and second stream groups at least one of which includes a plurality of streams; and a pilot signal generating unit () forms a transport signal by using the decided Walsh sequences to spread the streams included in the first and second stream groups. During this, Walsh sequences orthogonal to each other are established in the first and second stream groups, and users are allocated on a stream group-by-stream group basis. 1. A terminal station apparatus comprising:a reception section that receives assignment control information reported with downlink resources;a determining section that determines Walsh sequences of first and second stream groups at least one of which includes a plurality of streams based on the assignment control information;a formation section that forms a transmission signal by spreading each stream included in the first and second stream groups using the determined Walsh sequences; anda transmission section that transmits the formed transmission signal, wherein mutually orthogonal Walsh sequences are set in the first and second stream groups respectively and users are assigned in the stream group units.2. The terminal station apparatus according to claim 1 , wherein:the apparatus comprises a multiuser MIMO mode and a single user MIMO mode;in the multiuser MIMO, the first and second stream groups are assigned to different users respectively; andin the single user MIMO, the first and second stream groups are assigned to a single user.3. The terminal station apparatus ...

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Номер записи: 136

19-07-2012 дата публикации

TERMINAL DEVICE AND RETRANSMISSION CONTROL METHOD

Номер: US20120182858A1

Автор: Horiuchi Ayako, Imamura Daichi, Nakao Seigo, Nishio Akihiko

Принадлежит: Panasonic Corporation

Provided are a terminal device and a retransmission control method that make it possible to minimize increases in overhead in an uplink control channel (PUCCH), even if channel selection is used as the method to transmit response signals during carrier-aggregation communication using a plurality of downlink unit bands. On the basis of the generation status of uplink data and error-detection results obtained by a CRC unit (), a control unit () in the provided terminal () uses response signal transmission rules to control the transmission of response signals or uplink control signals that indicate the generation of uplink data. If an uplink control signal and a response signal are generated simultaneously within the same transmission time unit, the control unit () changes the resources allocated to the response signal and/or the phase point of the response signal in accordance with the number and position of ACKs within the error-detection result pattern. 1. A terminal apparatus that communicates with a base station using a unit band group including a plurality of downlink unit bands and at least one uplink unit band , comprising:a control information receiving section that receives downlink assignment control information corresponding to downlink data transmitted in at least one downlink unit band in the unit band group;a downlink data receiving section that receives downlink data corresponding to the downlink assignment control information;an error detecting section that detects a reception error of the received downlink data; anda control section that transmits an uplink control signal representing generation of uplink data or a response signal through an uplink control channel of the uplink unit band, using a transmission rule of the response signal, based on a generation status of the uplink data and an error detection result obtained by the error detecting section,wherein in the transmission rule, when the uplink control signal and the response signal have been ...

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Номер записи: 137

02-08-2012 дата публикации

INTEGRATED CIRCUIT FOR CONTROLLING A PROCESS

Номер: US20120195274A1

Автор: Imamura Daichi, Iwai Takashi, Ogawa Yoshihiko, Takata Tomofumi

Принадлежит: Panasonic Corporation

It is an object to provide a sequence allocating method that, while maintaining the number of Zadoff-Chu sequences to compose a sequence group, is configured to make it possible to reduce correlations between different sequential groups. This method comprises the steps of setting a standard sequence with a standard sequence length (Nb) and a standard sequence number (rb) in a step (ST), setting a threshold value (Xth(m)) in accordance with an RB number (m) in a step (ST), setting a sequence length (N) corresponding to RB number (m) in a step (ST), judging whether |r/N−rb/Nb|=Xth(m) is satisfied in a step (ST), including a plurality of Zadoff-Chu sequences with a sequence number (r) and a sequence length (N) in a sequence group (rb) in a step (ST) if the judgment is positive, and allocating the sequence group (rb) to the same cell in a step (ST). 1. An integrated circuit for controlling a process comprising: 'generating the reference signal using one of sequence(s) which are grouped into a group, wherein Nb is a reference sequence length which is common to all cells, and a predefined number of the sequence(s) with sequence number(s) r in ascending order of absolute value of difference between rb/Nb and r/N are grouped into the group with a group number rb for a sequence length N which depends on the transmission bandwidth based on the control information.', 'receiving control information related to transmission bandwidth of a reference signal; and'}2. An integrated circuit for controlling a process comprising: generating the reference signal using one of sequence(s) which are grouped into a group, wherein Nb is a reference sequence length which is common to all cells, and the sequence(s) with sequence number(s) r, by which absolute value of difference between rb/Nb and r/N is less than or equal to a predetermined value, are grouped into the group with a group number rb for a sequence length N which depends on the transmission bandwidth based on the control ...

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Номер записи: 138

18-10-2012 дата публикации

WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD

Номер: US20120263131A1

Автор: Imamura Daichi, Nakao Seigo, Nishio Akihiko, Ogawa Yoshihiko

Принадлежит: Panasonic Corporation

There are disclosed a wireless communication apparatus and a wireless communication method whereby a flexible frequency scheduling can be performed without increasing the circuit scale of DFT (Discrete Fourier Transform). In a terminal (), a number-of-allocated-RBs setting unit () sets a number of allocated RBs, which is to be used for an actual transmission band corresponding to the number of notified RBs, to a number of resource blocks that can be expressed by one of “2×3×5”. The allocated RB selecting unit () selects, based on the resource allocation information and the number of allocated RBs, either an unused one of the notified RBs that is not used as the transmission band or an additional RB that is added to the notified RBs and used as the transmission band. 1. A wireless communication apparatus comprising:a receiver configured to receive resource allocation information indicating a group to which resource is allocated, out of a plurality of groups that are obtained by dividing a system band based on a unit of a determined number of resource blocks;{'b': 2', '2, 'sup': n', 'm', 'l', 'n', 'm', 'l, 'a setting section configured to set, in a case where a number of reported resource blocks reported by the resource allocation information cannot be expressed by “×3×5” (n, m, and l are an integer equal to or more than 0), a number of allocated resource blocks that is used for an actual transmission band and corresponds to the number of reported resource blocks, to a number of resource blocks that can be expressed by any of “×3×5”; and'}a selector configured to select an unused resource block that is not used for the transmission band in the reported resource blocks, or select an added resource block that is added to the reported resource blocks and is used for the transmission band, on a basis of the resource allocation information and the number of allocated resource blocks.2. The wireless communication apparatus according to claim 1 , wherein{'b': '2', 'sup': n', ...

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Номер записи: 139

08-11-2012 дата публикации

INTEGRATED CIRCUIT FOR RESPONSE SIGNAL SPREADING

Номер: US20120281732A1

Автор: Hoshino Masayuki, Imamura Daichi, Nakao Seigo, Nishio Akihiko

Принадлежит: Panasonic Corporation

A wireless communication apparatus capable of minimizing the degradation of the separation characteristic of response signals to be code-multiplexed. In the apparatus, a control part () controls both a ZC sequence to be used for the primary spread in a spreading part () and a Walsh sequence to be used for the secondary spread in a spreading part () according to the associations between sequences and CCEs established in accordance with the probability of using response signal physical-resources corresponding to CCE numbers. The spreading part () performs the primary spread of the response signal by use of the ZC sequence established by the control part (). The spreading part () performs the secondary spread of the response signal, to which CP has been added, by use of the Walsh sequence established by the control part (). 1. A radio communication apparatus comprising:a receiving unit configured to receive control information transmitted on one or a plurality of control channel elements (CCEs) with consecutive CCE number(s), CCEs being numbered sequentially from one; anda spreading unit configured to first-spread a response signal with a sequence defined by a cyclic shift value, which is determined among a plurality of cyclic shift values from a resource associated with a first CCE number of said one or a plurality of CCEs, and configured to second-spread the first-spread response signal with an orthogonal sequence, which is determined among a plurality of orthogonal sequences from said resource;wherein in said spreading unit, different cyclic shift values used for a same orthogonal sequence are respectively determined from a resource associated with an odd CCE number and a resource associated with an even CCE number, and the first CCE number is restricted to be an odd number when the control information is transmitted on the plurality of CCEs.2. The radio communication apparatus according to claim 1 , wherein two of the cyclic shift values claim 1 , which are used ...

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Номер записи: 140

15-11-2012 дата публикации

WIRELESS COMMUNICATION TERMINAL APPARATUS, WIRELESS COMMUNICATION BASE STATION APPARATUS AND WIRELESS COMMUNICATION METHOD

Номер: US20120287770A1

Автор: Hoshino Masayuki, Imamura Daichi, Iwai Takashi, Nakao Seigo, Nishio Akihiko, Ogawa Yoshihiko

Принадлежит: Panasonic Corporation

Provided are a wireless communication terminal apparatus, a radio communication base station apparatus and a wireless communication method whereby the increase in the number of signaling bits can be suppressed, while the SRS capacity can be improved. RS type determining unit () determines, based on scheduling information, that the signal is an SRS signal accompanied by no data or a DMRS signal accompanied by data. CS amount deciding unit () holds a CS amount for DMRS and a CS amount for SRS that are defined such that the CS amount for SRS includes a CS amount not included in the CS amount for DMRS. The CS amount deciding unit () uses CS amount notification information, which is included in the scheduling information, and the CS amount definition to derive a CS amount in accordance with the RS type outputted from the RS type determining unit (). 1. A radio communication terminal apparatus comprising:a receiver configured to receive notification information for notifying an amount of cyclic shift used for a reference signal;a determination unit configured to determine the amount of cyclic shift corresponding to the received notification information for a data demodulation reference signal or a sounding reference signal, an amount of cyclic shift not included in the amount of cyclic shift for the data demodulation reference signal being set as the amount of cyclic shift for the sounding reference signal and being associated with the notification information along with the amount of cyclic shift for the data demodulation reference signal; anda transmitter configured to transmit the data demodulation reference signal or the sounding reference signal using the determined amount of cyclic shift.2. The radio communication terminal apparatus according to claim 1 , wherein the amount of cyclic shift for the sounding reference signal is associated with an amount of cyclic shift obtained by shifting the amount of cyclic shift for the data demodulation reference signal by one.3. ...

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Номер записи: 141

15-11-2012 дата публикации

BASE STATION, TERMINAL, RETRANSMISSION CONTROL METHOD, AND RESPONSE METHOD

Номер: US20120287886A1

Автор: Fukuoka Masaru, Futagi Sadaki, Imamura Daichi, Iwai Takashi, Nakao Seigo, Nishio Akihiko, Takata Tomofumi

Принадлежит: Panasonic Corporation

Disclosed is a base station which can prevent degradation in the reception characteristics of nearby cells when carrier aggregation and channel selection are applied. In accordance with the resistance to interference of a plurality of uplink component carriers of a femtocell, a response protocol controller () in a base station () changes combination rules for the uplink component carriers and signal points which a terminal () in a microcell covered by the base station () uses in the feedback of a response signal. Information in relation to the combination rules is notified to the terminal (). A controller () in the terminal () changes the combination rules for the uplink component carriers and the signal points of the microcell covered by the base station () in accordance with the information notified from the base station (), and controls transmission of the response signal in accordance with said rules. 1. A base station comprising:a controller configured to change a combination rule for combination of a component carrier and constellation points based on a parameter related to interference robustness of a plurality of component carriers in a plurality of cells, the component carrier and the constellation points being to be used by a terminal to feed back a response signal for downlink data transmitted using the plurality of component carriers;a receiver configured to perform a reception process using a combination of a candidate of component carrier and candidates of constellation points and outputs a result of the reception process, the candidate of component carrier and the candidates of constellation points corresponding to information on the changed combination rule; andan identification section configured to identify the combination of the candidate of component carrier and the candidates of constellation points based on the result of the reception process, the candidate of component carrier and the candidates of constellation points being used to feed back ...

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Номер записи: 142

22-11-2012 дата публикации

Terminal, base station, response method, and retransmission control method

Номер: US20120294256A1

Автор: Akihiko Nishio, Daichi Imamura, Masaru Fukuoka, Masayuki Hoshino, Seigo Nakao, Tadashi Yoshida, Takashi Iwai

Принадлежит: Panasonic Corp

Disclosed are a terminal, a base station, a response method, and a retransmission control method, which are capable of switching the response signal transmission method while preventing throughput degradation and without increasing the number of signaling bits. A bundling determination unit ( 132 ) of a terminal ( 100 ) determines parameters that denote the allocated resource quantities that are allocated thereto from a base station ( 200 ), or in other words, a downstream band that is included in a bundling group and a downstream band that is not included in the bundling group, from among a plurality of downstream bands on the basis of base station transmission parameters. Specifically, a degree of resource share (Xn) that is allocated from each respective downstream band to the terminal ( 100 ) is employed in the base station transmission parameters.

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Номер записи: 143

29-11-2012 дата публикации

METHOD FOR SETTING SUBBANDS IN MULTICARRIER COMMUNICATION, AND RADIO COMMUNICATION MOBILE STATION APPARATUS

Номер: US20120300660A1

Автор: Fukuoka Masaru, Imamura Daichi, Nishio Akihiko

Принадлежит: Panasonic Corporation

A wireless communication base station apparatus wherein when a frequency scheduling transmission and a frequency diversity transmission are performed in a multicarrier communication at the same time, the adaptive control of a channel for performing the frequency scheduling transmission can be prevented from being complicated. In this apparatus, a modulating part () modulates an encoded Dch data to generate Dch data symbols. A modulating part () modulates an encoded Lch data to generate Lch data symbols. An assigning part () assigns the Dch and Lch data symbols to subcarriers constituting OFDM symbols and outputs them to a multiplexing part (). At this moment, the assigning part () assigns a set of Dch and Lch data symbols to each subcarrier for a respective subband. 1. A mobile station apparatus comprising:a receiving unit configured to receive data in a plurality of blocks, wherein either first block(s), to which data are localizedly allocated, or second block(s), to which data are distributedly allocated, are mapped to each of the plurality of blocks, into which a plurality of consecutive subcarriers in a frequency domain are divided and each of which is comprised of the same number of subcarriers, and to receive control information that is in a format common to both the first block(s) and the second block(s),wherein the format common to both the first block(s) and the second block(s) includes a first field that indicates whether the first block(s) or the second block(s) are assigned to the mobile station apparatus, a second field that indicates the first block(s) or the second block(s) that are allocated to the mobile station apparatus, and a third field that indicates a modulation and coding scheme used for the data mapped to the first block(s) or the second block(s).2. The mobile station apparatus according to claim 1 , wherein the second block(s) are mapped such that the data allocated to the second block(s) are distributed with a predetermined gap in the ...

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Номер записи: 144

20-12-2012 дата публикации

WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD

Номер: US20120320820A1

Автор: Horiuchi Ayako, Imamura Daichi, Iwai Takashi, Nakao Seigo, Nishio Akihiko, Yuda Yasuaki

Принадлежит: Panasonic Corporation

A wireless communication device which can improve reception quality in a second other wireless communication device is disclosed, including a reception unit which receives a signal from a first other wireless communication device or a second other wireless communication device connected to the wireless communication device and the first other wireless communication device, a transmission power value setting unit which sets a transmission power value in a first subframe, in which the first other wireless communication device transmits a signal to the second other wireless communication device, to be higher than that in a second subframe in which the first other wireless communication device receives a signal from a third other wireless communication device connected to the first other wireless communication device, and a transmission power value switching control unit which performs switching in the first subframe to the transmission power value higher than that in the second subframe. 1. A wireless communication device comprising: a reception unit configured to receive a signal from a first other wireless communication device or a second other wireless communication device to which the wireless communication device and the first other wireless communication device are connected;a transmission power value setting unit configured to set a transmission power value in a first subframe, in which the first other wireless communication device transmits a signal to the second other wireless communication device, to be higher than a transmission power value in a second subframe in which the first other wireless communication device receives a signal from a third other wireless communication device connected to the first other wireless communication device; anda transmission power value switching control unit configured to, in the first subframe, perform switching to the transmission power value higher than the transmission power value in the second subframe on the basis of ...

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Номер записи: 145

20-12-2012 дата публикации

Control information transmission apparatus, control information reception apparatus, and control information transmission method

Номер: US20120320854A1

Автор: Akihiko Nishio, Atsushi Sumasu, Ayako Horiuchi, Daichi Imamura, Masayuki Hoshino, Seigo Nakao, Shinsuke Takaoka, Takashi Iwai, Yoshihiko Ogawa

Принадлежит: Panasonic Corp

A control information transmission apparatus which can reduce the interference power of the control signal of the terminal connected to the femtocell is provided. The control information transmission apparatus comprises an arrangement unit that arranges some or all of control signals for a terminal in an extension part among resources including a compatible part and the extension part; and a transmission unit that transmits some or all of the arranged control signals for the terminal.

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Номер записи: 146

20-12-2012 дата публикации

WIRELESS COMMUNICATIONS DEVICE AND DATA REDISTRIBUTION METHOD

Номер: US20120320861A1

Автор: Imamura Daichi, Kimura Ryohei, Kishigami Takaaki, Yoshii Isamu

Принадлежит: Panasonic Corporation

A wireless communications device that transmits a multiplexed signal of a plurality of data sets of different sizes to a communications terminal includes an empty resource block detection section, which detects empty resource blocks of the data sets each of which does not use any of a predetermined number of resource blocks, from among the plurality of data sets whereto the predetermined number of resource blocks are allocated in the time direction and the frequency direction; and a data redistribution section that redistributes a part of data that is distributed in resource blocks, with respect to the data sets whereto resource including empty resource blocks are allocated, in the vicinity of pilot symbols that are disposed within the empty resource blocks. It is possible to effectively utilize the function of all the pilot symbols and improve error rate characteristics. 1. A wireless communications device that transmits a multiplexed signal of a plurality of data sets of different sizes to a communications terminal , comprising:an empty resource block detection section that detects empty resource blocks of the data sets each of which does not use any of a predetermined number of resource blocks, from among the plurality of data sets to which the predetermined number of resource blocks are allocated in a time direction and a frequency direction; anda data redistribution section that redistributes a part of data that is distributed in resource blocks, with respect to the data sets to which resource including empty resource blocks are allocated, in vicinity of pilot symbols that are disposed within the empty resource blocks.2. The wireless communications device according to claim 1 , further comprising:a redistribution pattern determining section that determines a redistribution pattern of the data based on a number of the resource blocks allocated to each of the plurality of data sets and a number of the empty blocks detected by the empty resource block detection ...

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Номер записи: 147

27-12-2012 дата публикации

COMMUNICATION APPARATUS AND COMMUNICATION METHOD

Номер: US20120328056A1

Автор: Imamura Daichi, KURI Kenichi, Miyoshi Kenichi, Nishio Akihiko

Принадлежит: Panasonic Corporation

A wireless communication apparatus and a wireless communication method wherein even when the permissible delay amount of data is small, the permissible delay thereof can be satisfied. A data type determining part () determines whether the delay of transport data or control information should be allowed or not. A pilot signal insertion control part () decides, based on pilot insertion interval information and allowable delay information, that a pilot signal is placed adjacently to data that is not allowed to delay. A multiplexing part () multiplexes encoded and modulated transport data with the pilot signal generated by a pilot signal generating part () in such a manner that realizes the placement decided by the pilot signal insertion control part (). 1. A communication apparatus comprising:a receiving unit configured to receive at least one of a pilot signal for control information and a pilot signal for data; anda demodulating unit configured to demodulate at least one of the control information and the data using the pilot signal,wherein the pilot signal for the control information is mapped to a part of all subcarriers within symbols, to which the control information is mapped.2. The communication apparatus according to claim 1 , further comprises a channel estimating unit configured to perform a channel estimation using the pilot signal claim 1 , wherein said demodulating unit demodulates at least of the control information and the data based on the channel estimation.3. The communication apparatus according to claim 1 , wherein the pilot signal for the control information is mapped close to a symbol claim 1 , to which the control information is mapped.4. The communication apparatus according to claim 1 , wherein the pilot signal for the control information is mapped just after a symbol claim 1 , to which the control information is mapped.5. The communication apparatus according to claim 1 , wherein the pilot signal for the control information is mapped just ...

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Номер записи: 148

10-01-2013 дата публикации

SEQUENCE ALLOCATING METHOD AND SEQUENCE ALLOCATING APPARATUS

Номер: US20130010726A1

Автор: Futagi Sadaki, Imamura Daichi, Inogai Kazunori, Iwai Takashi, MATSUMOTO Atsushi

Принадлежит: Panasonic Corporation

A sequence allocating method and apparatus wherein in a system where a plurality of different Zadoff-Chu sequences or GCL sequences are allocated to a single cell, the arithmetic amount and circuit scale of a correlating circuit at a receiving end can be reduced. In ST a counter (a) and a number (p) of current sequence allocations are initialized, and in ST it is determined whether the number (p) of current sequence allocations is coincident with a number (K) of allocations to one cell. In ST it is determined whether the number (K) of allocations to the one cell is odd or even. If K is even, in ST-ST sequence numbers (r=a and r=N−a), which are not currently allocated, are combined and then allocated. If K is odd, in ST-ST for sequences that cannot be paired, one of sequence numbers (r=a and r=N−a), which are not currently allocated, is allocated. 2. The terminal apparatus according to claim 1 , wherein the sequences available in the cell further include a sequence of r=a′ (a′≠a) and a sequence of r=N−a′.3. The terminal apparatus according to claim 1 , wherein the N is a prime number.4. The terminal apparatus according to claim 1 , wherein the selector randomly selects a sequence from the sequences available in the cell.6. The random access preamble transmitting method according to claim 5 , wherein the sequences available in the cell further include a sequence of r=a′ (a′≠a) and a sequence of r=N−a′.7. The random access preamble transmitting method according to claim 5 , wherein the N is a prime number.8. The random access preamble transmitting method according to claim 5 , wherein the selecting unit randomly selects a sequence from the sequences available in the cell. The present invention relates to a sequence allocation method and a sequence allocating apparatus for allocating a Zadoff-Chu sequence or GCL sequence to a cell.Mobile communication systems represented by a cellular communication system or wireless radio LAN (i.e. local area network) systems are ...

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Номер записи: 149

10-01-2013 дата публикации

WIRELESS RECEPTION DEVICE, WIRELESS TRANSMISSION DEVICE, AND WIRELESS COMMUNICATION METHOD

Номер: US20130010750A1

Автор: Hoshino Masayuki, Imamura Daichi, Nakao Seigo, Nishio Akihiko

Принадлежит: Panasonic Corporation

A wireless reception device includes a resource information acquisition section that is configured to acquire silent resource setting information showing that a silent resource which indicates that no signals are allocated in a predetermined resource among distributed resources in which a resource unit defined in a frequency-time domain is divided along a time direction and distributed at a predetermined frequency interval, a receiver that is configured to receive a signal including the distributed resources in which the silent resource is allocated; and an inter-cell interference measurement section that is configured to measure an inter-cell interference pertaining to an amount of interference affected by another cell based on the silent resource setting information and by use of the silent resource allocated in the distributed resources. 1: A wireless reception device , comprising:a resource information acquisition section that is configured to acquire silent resource setting information showing that a silent resource which indicates that no signals are allocated in a predetermined resource among distributed resources in which a resource unit defined in a frequency-time domain is divided along a time direction and distributed at a predetermined frequency interval;a receiver that is configured to receive a signal including the distributed resources in which the silent resource is allocated; andan inter-cell interference measurement section that is configured to measure an inter-cell interference pertaining to an amount of interference affected by another cell based on the silent resource setting information and by use of the silent resource allocated in the distributed resources.2: The wireless reception device according to claim 1 , whereinthere are employed, as the distributed resources, resources in which a resource unit defined in the frequency-time domain is divided into a first half slot and a last half slot along a time direction and the first half slot and ...

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Номер записи: 150

17-01-2013 дата публикации

WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD

Номер: US20130016770A1

Автор: Imamura Daichi, Kishigami Takaaki, Yoshii Isamu

Принадлежит: Panasonic Corporation

As a parameter control unit that controls video encoding parameters regarding video encoding in a video encoding unit and transmission channel parameters regarding error correction coding and modulation in a channel coding/modulation unit so as to be linked to each other, a cross layer rate control unit is provided. The cross layer rate control unit performs variable control of the GOP size according to propagation changes by reducing the GOP size when the amount of change in the predicted value of the PHY transmission rate is larger than a determined amount of change and increasing the GOP size when the amount of change in the predicted value of the PHY transmission rate is equal to or less than the determined amount of change. 1. A wireless communication device comprising:a video encoding unit configured to perform video encoding on video data to generate an encoded video data;a channel coding and modulation unit configured to perform error correction coding and modulation on the encoded video data to generate channel coded video data;a signal transmission unit configured to transmit the channel coded video data; anda control unit configured to perform variable control of a GOP (Group of Pictures) size in the video encoding on the basis of the amount of change in a transmission channel parameter corresponding to a predicted value of a transmission rate on a transmission channel through which the channel coded video data is transmitted.2. The wireless communication device according to claim 1 ,wherein the GOP size is controlled so as to become smaller than a determined size when the amount of change in the transmission channel parameter is larger than a determined amount of change.3. The wireless communication device according to claim 2 ,wherein the GOP size is controlled so as to become larger than the determined size when the amount of change in the transmission channel parameter is equal to or less than the determined amount of change.4. The wireless ...

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Номер записи: 151

24-01-2013 дата публикации

TERMINAL APPARATUS AND RESPONSE SIGNAL TRANSMITTING METHOD

Номер: US20130021920A1

Автор: Horiuchi Ayako, Imamura Daichi, Nakao Seigo, Nishio Akihiko

Принадлежит: Panasonic Corporation

Disclosed are a terminal apparatus and a response signal transmitting method that can reduce the signaling overheads related to a bundling group in a communication system to which a partial bundling is applied. In a terminal (), a bundling control unit (), which serves as a generating means for generating a response signal, generates, based on a bundling rule according to which bundling groups are associated with downstream unit bands constituting unit band groups, a bundle of ACK/NACK signals obtained by bundling the error detection results of active downstream unit bands included in the same bundling group, out of active downstream unit band groups constituted by active downstream unit bands. 1. A terminal device comprising:a receiving section that receives downlink data transmitted using at least one downlink unit band in a unit band group made up of a plurality of downlink unit bands;a generating section that generates a response signal obtained by bundling error detection results of the downlink unit bands included in the same bundling group based on a bundling rule according to which a bundling group is associated with each of the downlink unit bands constituting the unit band group; anda transmitting section that transmits the response signal arranged on an uplink control channel corresponding to one of the downlink unit bands associated with the same bundling group.2. The terminal device according to claim 1 , wherein according to the bundling rule claim 1 , the respective downlink unit bands are associated with the bundling group based on frequency positions of the downlink unit bands.3. The terminal device according to claim 1 , wherein according to the bundling rule claim 1 , out of the downlink unit bands claim 1 , downlink unit bands which are more likely to be simultaneously used are associated with different bundling groups.4. The terminal device according to claim 1 , wherein according to the bundling rule claim 1 , out of the downlink unit bands ...

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Номер записи: 152

24-01-2013 дата публикации

Base station, mobile station, coordinated mobile station, transmission method and reception method

Номер: US20130021981A1

Автор: Daichi Imamura, Isamu Yoshii, Lei Huang

Принадлежит: Panasonic Corp

A base station (BS) which communicates with a plurality of mobile stations (MSs) is configured so as to comprise a control signal generation unit which generates control signals showing information on the allocation of resources for each of the plurality of mobile stations (MSs), and a transmission unit which transmits the control signals to the plurality of mobile stations (MSs). A control signal for a given mobile station (MS) includes information relating to another mobile station (MS).

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Номер записи: 153

31-01-2013 дата публикации

WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD

Номер: US20130028098A1

Автор: Horiuchi Ayako, Imamura Daichi, Nakao Seigo, Sumasu Atsushi, Yuda Yasuaki

Принадлежит: Panasonic Corporation

Provided are a wireless communication apparatus and a wireless communication method capable of reducing power consumption without delay of data transmission and reception. The wireless communication apparatus according to the invention includes a reception unit which receives a DRX instruction information destined for the wireless communication apparatus and a monitor process number including a sub-frame number used to monitor a PDCCH destined for the wireless communication apparatus; and a monitoring process unit which monitors the PDCCH destined for the wireless communication apparatus using only sub-frames set based on the sub-frame number, when receiving an instruction to perform a DRX process by the DRX instruction information. 1. A wireless communication apparatus comprising:a reception unit configured to receive discontinuous reception (DRX) instruction information for the wireless communication apparatus and a monitor process index including a sub-frame index used to monitor a PDCCH for the wireless communication apparatus; anda monitoring process unit configured to monitor the PDCCH for the wireless communication apparatus using only a sub-frame which is set based on the sub-frame index, when receiving an instruction to perform a DRX process by the DRX instruction information.2. The wireless communication apparatus according to claim 1 , wherein the set sub-frame is a sub-frame distributed in a frame.3. The wireless communication apparatus according to claim 1 , wherein the set sub-frame is set based on the sub-frame index and a sub-frame used for an HARQ process.4. The wireless communication apparatus according to claim 3 , wherein the set sub-frame is set based on the sub-frame index and a sub-frame used for synchronous HARQ process in which a time interval from transmission time of new data to transmission time of retransmission data is fixed.5. The wireless communication apparatus according to claim 4 , wherein when the set sub-frame is not able to be ...

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Номер записи: 154

31-01-2013 дата публикации

WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD

Номер: US20130028124A1

Автор: Horiuchi Ayako, Imamura Daichi, Nakao Seigo, Nishio Akihiko, Yuda Yasuaki

Принадлежит: Panasonic Corporation

A wireless communication device according to the invention includes a reception section that receives a downlink signal in a first subframe from another wireless communication device; an ACK/NACK generation section that generates ACK/NACK which indicates an error determination result of the received downlink signal; a determination section that determines, when an uplink signal directed to the other wireless communication device is not allocated in a second subframe, whether a different uplink signal is allocated in a third subframe subsequent to the first subframe by a predetermined number of subframes and previous to the second subframe; a multiplexing section that multiplexes the ACK/NACK to the different uplink signal in the third subframe when the determination section determines that the different uplink signal is allocated in the third subframe; and a transmission section that transmits the different uplink signal in which the ACK/NACK is multiplexed by the multiplexing section. 1. A wireless communication device , comprising:a reception section that is configured to receive a downlink signal in a first subframe from another wireless communication device;an ACK/NACK generation section that is configured to generate ACK/NACK which indicates an error determination result of the received downlink signal;a determination section that is configured, when an uplink signal directed to the wireless communication device is not allocated in a second subframe, to determine whether a different uplink signal is allocated in one or more third subframes, which are subframes subsequent to the first subframe by a determined number of subframes and previous to the second subframe;a multiplexing section that is configured to multiplex the ACK/NACK to the different uplink signal in the third subframe when the determination section determines that the different uplink signal is allocated in the third subframe; anda transmission section that is configured to transmit the different ...

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Номер записи: 155

31-01-2013 дата публикации

TRANSMISSION DEVICE, TRANSMISSION POWER CONTROL METHOD AND TRANSMISSION DETERMINATION METHOD

Номер: US20130028214A1

Автор: Imamura Daichi, Iwai Takashi, Nakao Seigo, Nishio Akihiko

Принадлежит: Panasonic Corporation

Provided is a transmission device, wherein even when the transmission device performs noncontiguous band allocation transmission, the same level of coverage and gain as when the contiguous band allocation transmission is assumed can be maintained. A transmission power control unit (), in a second mode, calculates first power on the basis of the transmission power control method using, as the bandwidth of the contiguous bands in the first mode, the bandwidth of a first band with the lowest frequency in a cluster allocated to the lowest band among a plurality of clusters and the highest frequency in a cluster allocated to the highest band among the plurality of clusters as both ends thereof, and calculates the transmission power using the ratio between the bandwidth of the first band and the bandwidth of a second band to which the plurality of the clusters are allocated, and the first power. 110-. (canceled)11. A transmission apparatus that uses a first mode for allocating transmission data to a contiguous frequency band and a second mode for dividing the transmission data into a plurality of clusters and allocating the plurality of clusters to non-contiguous frequency bands , the apparatus comprising:a control section configured to control a transmission power of the transmission data in accordance with the first mode or the second mode; anda transmission section configured to transmit the transmission data at the transmission power, whereinin the first mode, the control section sets the transmission power based on a transmission power control method set for the contiguous frequency band and,in the second mode,the control section sets a bandwidth of a first frequency band, which is derived from a lowest frequency in a cluster allocated to a lowest frequency band among the plurality of clusters and a highest frequency in a cluster allocated to a highest frequency band among the plurality of clusters, as a bandwidth of the contiguous frequency band in the first mode, ...

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Номер записи: 156

31-01-2013 дата публикации

WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD

Номер: US20130028217A1

Автор: Hoshino Masayuki, Imamura Daichi, Sumasu Atsushi, Yuda Yasuaki

Принадлежит: Panasonic Corporation

Provided are a wireless communication apparatus and a wireless communication method capable of reducing distortion of a CSI-RS and interference with other CSI-RSs. The wireless communication apparatus according to the invention includes: a CSI-RS generation section that generates CSI-RSs, an arrangement section that arranges the CSI-RSs in a single or a plurality of consecutive OFDM symbols located between a plurality of OFDM symbols, in which a signal other than the CSI-RS is arranged, and adjacent to the plurality of OFDM symbols in which the signal other than the CSI-RS is arranged; and a transmission section that transmits a signal other than the CSI-RS arranged by the arrangement section and a transmission signal including the CSI-RS. 1. A wireless communication apparatus comprising:a CSI-RS generation section that generates a CSI-RS;an arrangement section that arranges the CSI-RS in a single OFDM symbol or a plurality of consecutive OFDM symbols located between a plurality of OFDM symbols in which a signal other than the CSI-RS is arranged, and adjacent to the plurality of OFDM symbols in which the signal other than the CSI-RS is arranged; anda transmission section that transmits a signal other than the CSI-RS arranged by the arrangement section and a transmission signal including the CSI-RS.2. The wireless communication apparatus according to claim 1 , wherein the signal other than the CSI-RS includes a reference signal claim 1 , a data signal claim 1 , and a control signal.3. The wireless communication apparatus according to claim 1 , wherein the arrangement section arranges the CSI-RS in the single OFDM symbol or the plurality of consecutive OFDM symbols adjacent to an OFDM symbol in which a CRS is arranged.4. The wireless communication apparatus according to claim 1 , wherein the arrangement section arranges the CSI-RS in a region other than a DMRS region among the single OFDM symbol or the plurality of consecutive OFDM symbols adjacent to the OFDM symbols ...

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Номер записи: 157

07-02-2013 дата публикации

BASE STATION APPARATUS AND RADIO COMMUNICATION METHOD

Номер: US20130034077A1

Автор: Hoshino Masayuki, Imamura Daichi, Nakao Seigo, Nishio Akihiko

Принадлежит: Panasonic Corporation

A wireless communication apparatus capable of minimizing the degradation in separation characteristic of a code multiplexed response signal. In this apparatus, a control part () controls both a AC sequence to be used in a primary spreading in a spreading part () and a Walsh sequence to be used in a secondary spreading in a spreading part () so as to allow a very small circular shift interval of the ZC sequence to absorb the interference components remaining in the response signal; the spreading part () uses the ZC sequence set by the control part () to primary spread the response signal; and the spreading part () uses the Walsh sequence set by the control part () to secondary spread the response signal to which CP has been added. 1. A base station apparatus comprising:a transmitting section configured to transmit data to a mobile station apparatus and transmit, to the mobile station apparatus, control information related to the data on a control channel element (CCE); anda receiving section configured to receive a reference signal sequence, which is defined by one of plural cyclic shift values, the reference signal sequence being spread with an orthogonal sequence, which is one of plural orthogonal sequences and with which the one of plural cyclic shift values is associated, and transmitted from the mobile station apparatus,wherein the one of plural cyclic shift values and the one of plural orthogonal sequences are determined from an index of a resource associated with a CCE number, and a different cyclic shift value is associated with each of two of the plural orthogonal sequences.2. The base station apparatus according to claim 1 , wherein the index of a resource is associated one-to-one with the CCE number.3. The base station apparatus according to claim 1 , wherein the control information includes resource assignment information of the data.4. The base station apparatus according to claim 1 , wherein said transmitting section transmits the control information on ...

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Номер записи: 158

07-02-2013 дата публикации

RADIO COMMUNICATION DEVICE AND RESPONSE SIGNAL SPREADING METHOD

Номер: US20130034126A1

Автор: Hiramatsu Katsuhiko, Imamura Daichi, Nakao Seigo

Принадлежит: Panasonic Corporation

A radio communication device capable of randomizing both inter-cell interference and intra-cell interference. In this device, a spreading section primarily spreads a response signal in a ZAC sequence set by a control unit. A spreading section secondarily spreads the primarily spread response signal in a block-wise spreading code sequence set by the control unit. The control unit controls the cyclic shift amount of the ZAC sequence used for the primary spreading in the spreading section and the block-wise spreading code sequence used for the secondary spreading in the spreading section according to a set hopping pattern. The hopping pattern set by the control unit is made up of two hierarchies. An LB-based hopping pattern different for each cell is defined in the first hierarchy in order to randomize the inter-cell interference. A hopping pattern different for each mobile station is defined in the second hierarchy to randomize the intra-cell interference. 1. A mobile apparatus for spreading an ACK , NACK (acknowledgment , negative-acknowledgment) signal or a CQI (channel quality indicator) signal by using a sequence defined with a cyclic shift amount having a cyclic shift index , which is one of a total of 12 cyclically continuous cyclic shift indexes , and transmitting the ACK , NACK signal or the CQI signal by using a physical resource that supports a mix of an ACK , NACK signal and a CQI signal , comprising:(a) for transmitting the ACK, NACK signal,a spreading section that spreads the ACK, NACK signal by using an orthogonal sequence having a sequence index corresponding to a PUCCH (physical uplink control channel) number allocated to the mobile apparatus and by using a sequence defined with a cyclic shift amount having a cyclic shift index corresponding to the PUCCH number;a transmitting section that transmits the spread ACK, NACK signal; anda changing section which changes the cyclic shift amount having the cyclic shift index corresponding to the PUCCH number ...

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Номер записи: 159

14-02-2013 дата публикации

CODE DIVISION MULIPLEXING METHOD, TRANSMITTING DEVICE AND RECEIVING DEVICE USING THE METHOD

Номер: US20130039162A1

Автор: Hoshino Masayuki, Imamura Daichi, Xu Ming, Zhang Zhi

Принадлежит: Panasonic Corporation

There are provided a code division multiplexing method as well as a transmitting device and a receiving device using the method. The method performs code division multiplexing of a plurality of signals by using a code matrix, the code matrix comprising a plurality of code words, the number of which is the same as the number of the plurality of signals, with each code word comprising a plurality of chips, the method comprising: multiplying each signal of the plurality of signals by each chip of a corresponding code word respectively; and calculating a sum of products of the respective chips in each code word and the corresponding signals to form a plurality of multiplexed signals, wherein, corresponding chips of the respective code words constitute multiple sets of chips, and only one term in differences or sums of any one set of chips and one set of chips among other sets of chips is not zero. The code division multiplexing method as well as the transmitting device and the receiving device according to the present disclosure can make the influence of the selectivity of channels when de-multiplexing is performed small, thus improving the channel transmission quality. 1. A code division multiplexing method of performing code division multiplexing of a plurality of signals by using code matrix , the code matrix comprising a plurality of code words , the number of which is the same as the number of the plurality of signals , with each code word comprising a plurality of chips , the method comprising:multiplying each signal of the plurality of signals by each chip of a corresponding code word respectively; andcalculating a sum of products of the respective chips in each code word and the corresponding signals to form a plurality of multiplexed signals,wherein corresponding chips of the respective code words constitute multiple sets of chips, and only one term in differences or sums of any one set of chips and one set of chips among other sets of chips is not zero.2. The ...

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Номер записи: 160

14-02-2013 дата публикации

WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD

Номер: US20130039164A1

Автор: Horiuchi Ayako, Imamura Daichi, Nakao Seigo, Nishio Akihiko

Принадлежит: Panasonic Corporation

A wireless communication apparatus of the invention has a determination section that determines which one of a plurality of formats is used for determining transmission symbols to be transmitted to another communication apparatus; a control section that determines a type a sequence length of an orthogonal code and used for assigning ACK/NACK symbols to identical symbols in an identical slot on basis of the format determined by the determination section, without depending on a number of transmission symbols capable of being transmitted to the other communication apparatus; a spreading section that spreads the ACK/NACK symbols by an identical type of orthogonal code in the plurality of formats set based on the type and the sequence length of the orthogonal code determined by the control section; and a transmission section that transmits the spread ACK/NACK symbols using the determined format. 1. A wireless communication apparatus comprising:a determination section configured to determine which one of a plurality of formats is used for defining transmission symbols to be transmitted to another communication apparatus;a control section configured to determine a type and a sequence length of an orthogonal code used for assigning ACK/NACK symbols to identical symbols in an identical slot on basis of the format determined by the determination section, without depending on a number of transmission symbols capable of being transmitted to the other communication apparatus;a spreading section configured to spread the ACK/NACK symbols by an identical type of orthogonal code in the plurality of formats set on the basis of the type and the sequence length of the orthogonal code determined by the control section; anda transmission section configured to transmit the spread ACK/NACK symbols using the determined format.224. The wireless communication apparatus according to claim 1 , wherein the control section is configured to determine claim 1 , as the identical type of orthogonal ...

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Номер записи: 161

14-02-2013 дата публикации

INTEGRATED CIRCUIT FOR CONTROLLING RADIO COMMUNICATION

Номер: US20130039329A1

Автор: Hiramatsu Katsuhiko, Imamura Daichi, Iwai Takashi, MATSUMOTO Atsushi, Ogawa Yoshihiko, Takata Tomofumi

Принадлежит: Panasonic Corporation

Provided is a radio communication device which can prevent interference between SRS and PUCCH when the PUCCH transmission bandwidth fluctuates and suppress degradation of CQI estimation accuracy by the band where no SRS is transmitted. The device includes: an SRS code generation unit () which generates an SRS (Sounding Reference Signal) for measuring uplink line data channel quality; an SRS arrangement unit () which frequency-multiplexes the SRS on the SR transmission band and arranges it; and an SRS arrangement control unit () which controls SRS frequency multiplex so as to be uniform in frequency without modifying the bandwidth of one SRS multiplex unit in accordance with the fluctuation of the reference signal transmission bandwidth according to the SRS arrangement information transmitted from the base station and furthermore controls the transmission interval of the frequency-multiplexed SRS. 1. A base station apparatus , comprising:a setting section configured to, in at least one mode of operation, set reference-signal mappings to each of one or more frequency resources, into which a frequency band having a transmission bandwidth is uniformly divided depending on a variation of the transmission bandwidth in a system bandwidth, wherein the transmission bandwidth is between control channels mapped to both ends of the system bandwidth; anda transmitting section configured to transmit control information related to the reference-signal mappings.2. The base station apparatus according to wherein the transmission bandwidth is variable in the system bandwidth while a central frequency of the transmission bandwidth remains the same.3. The base station apparatus according to wherein in at least one mode of operation claim 1 , each of the one or more frequency resources has a fixed bandwidth regardless of the variation of the transmission bandwidth.4. The base station apparatus according to wherein in at least one mode of operation claim 1 , the one or more frequency ...

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Номер записи: 162

14-02-2013 дата публикации

WIRELESS COMMUNICATION DEVICE AND METHOD FOR CONTROLLING TRANSMISSION POWER

Номер: US20130040689A1

Автор: Imamura Daichi, Iwai Takashi, Nishio Akihiko, Ogawa Yoshihiko, Takaoka Shinsuke

Принадлежит: Panasonic Corporation

Disclosed is a wireless communication device that can suppress an increase in power consumption of a terminal while preventing the degradation of SINR measurement precision resulting from TPC errors in a base station. A terminal () controls the transmission power of a second signal by adding an offset to the transmission power of a first signal; an offset-setting unit () sets an offset correction value in response to a transmission time gap between a third signal transmitted the previous time and the second signal transmitted this time; and a transmission power control unit () controls the transmission power of the second signal using the correction value. 1. A radio communication apparatus that adds an offset value to transmission power of a first signal to control transmission power of a second signal , the apparatus comprising:a control section that controls the transmission power of the second signal using the offset value determined according to a transmission period of the second signal; anda transmission section that transmits the second signal with the transmission power controlled in the control section.2. The radio communication apparatus according to claim 1 , wherein the offset value is determined such that the transmission power of the second signal in the case where the second signal has a short transmission period is lower than the transmission power of the second signal in the case where the second signal has a long transmission period.3. The radio communication apparatus according to claim 1 , wherein the offset value is determined according to whether the transmission period is set to the second signal.4. The radio communication apparatus according to claim 3 , wherein the offset value is determined such that the transmission power of the second signal to which the transmission period thereof is set is lower than the transmission power of the second signal to which the transmission period thereof is not set.5. The radio communication apparatus ...

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Номер записи: 163

21-02-2013 дата публикации

ORTHOGONAL CODES BASED CODE DIVISION MULTIPLEXING METHOD, MULTIPLEXING DEVICE, AND DE-MULTIPLEXING DEVICE

Номер: US20130044580A1

Автор: Hoshino Masayuki, Imamura Daichi, Nakao Seigo, Xu Ming, Zhang Zhi

Принадлежит: Panasonic Corporation

The present disclosure provides an orthogonal codes based code division multiplexing method of performing the code division multiplexing of demodulation reference signals in multiple layers of resource blocks by using orthogonal matrices, the method comprising: changing the order of chips in particular rows of a first orthogonal matrix to obtain a second orthogonal matrix with the changed order of chips; and multiplying the chips in respective rows of the second orthogonal matrix by the demodulation reference signals in corresponding layers of resource blocks correspondingly in the time direction to obtain code division multiplexing signals. The technical scheme of the present disclosure can improve the power jitter situation of downlink signals on the time, thereby the usage efficiency of the power amplifier at the base station side can be improved. 1. A code division multiplexing method based on orthogonal codes for performing code division multiplexing of demodulation reference signals in multiple layers of resource blocks by using orthogonal matrices , the method comprising:changing the order of chips in particular rows of a first orthogonal matrix to obtain a second orthogonal matrix with the changed order of chips; andmultiplying the chips in the respective rows of the second orthogonal matrix by the demodulation reference signals in the corresponding layers of the resource blocks correspondingly in the time direction to obtain code division multiplexing signals.2. The code division multiplexing method according to claim 1 , wherein the order of chips is changed by cyclically shifting the chips in a part of rows of the first orthogonal matrix in the positive or reverse direction of the time claim 1 , or by multiplying a part of rows of the first orthogonal matrix by nonzero numbers and cyclically shifting the chips in the respective rows in the positive or reverse direction of the time claim 1 ,the method further comprising:multiplying the demodulation ...

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Номер записи: 164

14-03-2013 дата публикации

METHOD AND DEVICE FOR FEEDING BACK PRE-CODING MATRIX INDEX OF DUAL-POLARIZED ANTENNA

Номер: US20130064317A1

Автор: Hoshino Masayuki, Imamura Daichi, Tong Hui, Xu Ming

Принадлежит: Panasonic Corporation

There is provided a method and device for feeding back a pre-coding matrix index of a dual-polarized antenna which has a first antenna array and a second antenna array and is arranged at a base station to which the index of a first pre-coding matrix for the first antenna array, the index of a second pre-coding matrix for the second antenna array and the phase offset between the first pre-coding matrix and the second pre-coding matrix are fed back from a terminal, comprising: computing a distance between the first pre-coding matrix and the second pre-coding matrix; judging whether the distance is larger than a predetermined threshold or not; and assigning less bits to indicate the phase offset if the distance is larger than the predetermined threshold. The method and device according to the present disclosure can effectively advance the feedback accuracy of a system thus improving the bit error rate and throughput of the system. 1. A method of feeding back a pre-coding matrix index of a dual-polarized antenna which has a first antenna array and a second antenna array and is arranged at a base station to which the index of a first pre-coding matrix for the first antenna array , the index of a second pre-coding matrix for the second antenna array and the phase offset between the first pre-coding matrix and the second pre-coding matrix are fed back from a terminal , comprising:computing a distance between the first pre-coding matrix and the second pre-coding matrix;judging whether the distance is larger than a predetermined threshold or not; andassigning less bits to indicate the phase offset if the distance is larger than the predetermined threshold.2. The method according to claim 1 , wherein if the distance is not larger than the predetermined threshold claim 1 , more bits are assigned to indicate the phase offset.3. The method according to claim 1 , wherein the first pre-coding matrix comprises a first long-term pre-coding matrix and a first instantaneous pre-coding ...

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Номер записи: 165

21-03-2013 дата публикации

WIRELESS TRANSMISSION DEVICE, WIRELESS RECEPTION DEVICE, AND BANDWIDTH ALLOCATION METHOD

Номер: US20130072242A1

Автор: Fukuoka Masaru, Imamura Daichi, Iwai Takashi, Nakao Seigo, Nishio Akihiko, Ogawa Yoshihiko, Okasaka Shozo

Принадлежит: Panasonic Corporation

Provided are a wireless transmission device, a wireless reception device, and a bandwidth allocation method for, when non-contiguous bands allocation is performed, improving the frequency resource use efficiency of a system and thereby improving the system performance. RIV decoding unit () decodes start RBG# and end RBG# that are indicated by each RIV output from scheduling information decoding unit (). Allocation boundary setting unit () previously adds a predetermined predetermined offset to the boundary of each RIV so that the boundaries of the allocations of respective RIVs are different from each other. Based on the start RBG# and end RBG# output from RIV decoding unit () and the boundaries of the allocations of respective RIVs output from allocation boundary setting unit (), transmission bandwidth determination unit () determines, as allocated bandwidths, the bandwidths that are indicated by a plurality of RIVs and are not overlapped with each other. 1. A radio transmission apparatus comprising:a receiver configured to receive a plurality of continuous band allocation information indicating allocation of continuous bands;a transmission band setting unit configured to set allocation unit boundaries of a plurality of bands allocated using the plurality of continuous band allocation information such that the allocation unit boundaries of the plurality of bands differ from each other, and set a band where the plurality of bands indicated by the plurality of continuous band allocation information do not overlap, as a transmission band based on the different allocation unit boundaries; anda transmitter configured to transmit transmission data on the set transmission band.2. The radio transmission apparatus according to claim 1 , whereinthe transmission band setting unit allocates the number of dusters less than the number of continuous band allocation information using continuous band allocation information capable of indicating allocation including a band beyond ...

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Номер записи: 166

28-03-2013 дата публикации

WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD

Номер: US20130077560A1

Автор: Horiuchi Ayako, Hoshino Masayuki, Imamura Daichi, Nakao Seigo, Nishio Akihiko

Принадлежит: Panasonic Corporation

To improve the channel estimation accuracy of “DL grant” that instructs data allocation of a downlink of R-PDCCH. A wireless communication apparatus according to an aspect of the invention includes a receiver that is configured to receive a control signal, and a blind decoder that is configured to perform a blind decoding of a plurality of adjacent physical, resource blocks (PRBs) in which the same preceding is used in a unit of an RB group (RBG) that is composed of the plurality of PRBs, and to detect a resource area to which a control signal for the wireless communication apparatus that is included in the control signal is allocated. 1. A wireless communication apparatus , comprising:a receiver that is configured to receive a control signal; anda blind decoder that is configured to perform a blind decoding of a plurality of adjacent physical resource blocks (PRBs) in which the same precoding is used in a unit of an RB group (RBG) that is composed of the plurality of PRBs, and to detect a resource area to which a control signal for the wireless communication apparatus that is included in the control signal is allocated.2. A wireless communication apparatus , comprising:a search space determiner that is configured to determine a search space in a unit of an RB group (RBG) that is composed of a plurality of physical resource blocks (PRBs);an aggregation size determiner that is configured to determine an aggregation size of a control signal for a communication partner apparatus based on a channel quality between the wireless communication apparatus and the communication partner apparatus;an allocator that is configured to allocate the control signal for the communication partner apparatus to a plurality of adjacent PRBs in which the same precoding is used among the plurality of PRBs included in the search space, based on the determined aggregation size and the channel quality; anda transmitter that is configured to transmit the allocated control signal for the ...

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Номер записи: 167

28-03-2013 дата публикации

RADIO TRANSMISSION APPARATUS AND RADIO TRANSMISSION METHOD

Номер: US20130077656A1

Автор: Futagi Sadaki, Imamura Daichi, Iwai Takashi, MATSUMOTO Atsushi, Ogawa Yoshihiko, Takata Tomofumi

Принадлежит: Panasonic Corporation

Disclosed are a radio transmission device and a radio transmission method which can reduce a processing amount or a memory amount while maintaining the randomizing effect of other cell interference. When using as a reference signal, a ZC sequence of the sequence length uniquely correlated to a transmission bandwidth of a reference signal, as the transmission bandwidth becomes smaller and the sequence length of the ZC sequence becomes shorter, the sequence is switched at a shorter time interval and as the transmission bandwidth becomes greater and the sequence length of the ZC sequence becomes longer, the switching is performed at a longer time interval. Thus, a reference signal is generated by using the ZC sequence in accordance with the timing into which the reference signal transmission bandwidth and the sequence are switched. 1. A radio transmission apparatus comprising:a hopping pattern setting section configured to set a hopping pattern by varying a switching cycle to switch a sequence number of a code sequence to be used as a reference signal in accordance with a transmission bandwidth;a sequence generator configured to generate the code sequence based on the set hopping pattern; anda transmitter configured to transmit the generated code sequence, whereinthe switching cycle includes an infinite time interval which means that the code sequence is not switched.2. The radio transmission apparatus according to claim 1 , wherein the hopping pattern setting section is configured to set the hopping pattern such that the switching cycle to switch the code sequence is shorter when the transmission bandwidth is narrower and the switching cycle to switch the code sequence is longer when the transmission bandwidth is wider.3. The radio transmission apparatus according to claim 1 , wherein the transmission bandwidth comprises the number of resource blocks.4. The radio transmission apparatus according to claim 1 , wherein the code sequence comprises a Zadoff-Chu sequence.5. ...

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Номер записи: 168

04-04-2013 дата публикации

RADIO TRANSMISSION DEVICE AND METHOD

Номер: US20130083763A1

Автор: Futagi Sadaki, Imamura Daichi, Nakao Seigo, Takata Tomofumi

Принадлежит: Panasonic Corporation

A radio transmitting device and method enables reduction of an increase of CGI memories for the control channel and an improvement of the throughput of the data channel. When multiplex transmission through the control channel and the data channel is carried out and when adaptive modulation is applied to both channels, an MCS selecting section () is provided with one CQI table for the data channel and CQI tables for the control channel, and a table selecting MCS determining section () selects one of the tables depending on the transmission bandwidth of the terminal and determines the MCS of the control channel while looking up the selected CQI table. 1. A radio transmission apparatus comprising:a coding unit configured to code one form of control data using a modulation and coding scheme (MCS) for a data channel and an offset value, the offset value being set for said one form of the control data; anda radio transmitting unit configured to transmit data in the data channel and said one form of the control data coded with a coding rate according to said one form of the control data.2. The radio transmission apparatus according to claim 1 , wherein said coding unit is configured to code a first form of control data using the MCS for the data channel and an offset value for the first form of the control data claim 1 , and to code a second form of control data using the MCS for the data channel and an offset value for the second form of the control data.3. The radio transmission apparatus according to claim 2 , wherein a coding rate used to code said first form of control data is different from a coding rate used to code said second form of control data.4. The radio transmission apparatus according to claim 1 , wherein said coding unit codes said one form of the control data using a MCS determined based on the MCS for the data channel and the offset value.5. The radio transmission apparatus according to claim 1 , wherein said one form of the control data is ACK/NACK or ...

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Номер записи: 169

11-04-2013 дата публикации

WIRELESS COMMUNICATION APPARATUS, ALLOCATED RESOURCE NOTIFYING METHOD AND DATA ALLOCATING METHOD

Номер: US20130089056A1

Автор: Imamura Daichi, Iwai Takashi, Nishio Akihiko, Ogawa Yoshihiko, Takaoka Shinsuke

Принадлежит: Panasonic Corporation

Provided are a radio transmission apparatus and a radio transmission method whereby the increase of number of signaling bits can be suppressed and further the flexibility of frequency scheduling can be improved. A notified RBG calculating unit () that adds a predetermined offset value of “1” or “−1” to one of the start RBG number and the end RBG number of allocated RBG number information (b′i) output by a scheduling unit (), thereby calculating notified RBG number information (bi). An RBG total number setting unit () calculates the total number of RBGs, which is to be notified, by adding “1” to the total number of allocated RBGs. A notified information generating unit () applies the notified RBG number information (bi) and the notified total number of RBGs (Nrb′) to a predetermined formula, thereby generating and transmitting, to terminals, notified information (r). 18.-. (canceled)9. A base station apparatus comprising:an information generating section that generates resource allocation information that indicates a plurality of resources to be allocated to a terminal apparatus, in an uplink; anda transmission section that transmits the resource allocation information,wherein the resource allocation information includes indices corresponding to s and e and indicates each resource composed of one or more contiguous RBGs where s represents a start RBG index and e-1 represents an end RBG index.10. The base station apparatus according to wherein claim 9 , when the start RBG index is equal to the end RBG index claim 9 , a single RBG is allocated.11. The base station apparatus according to wherein the indices indicating allocation of two resources in the uplink are generated by start RBG index s1 and end RBG index e1 of a first resource claim 9 , start RBG index s2 and end RBG index e2 of a second resource claim 9 , and the total number of RBG indices N claim 9 , provided that N represents the total number of RBGs in a system bandwidth in the uplink adding +1.13. A ...

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Номер записи: 170

11-04-2013 дата публикации

RADIO TRANSMISSION DEVICE AND RADIO TRANSMISSION METHOD

Номер: US20130089168A1

Автор: Hiramatsu Katsuhiko, Imamura Daichi, MATSUMOTO Atsushi, Nakao Seigo, Ogawa Yoshihiko

Принадлежит: Panasonic Corporation

It is possible to improve the CQI reception performance even when a delay is caused in a propagation path, a transmission timing error is caused, or a residual interference is generated between cyclic shift amounts of different ZC sequences. For the second symbol and the sixth symbol of the ACK/NACK signal which are multiplexed by RS of CQI, (+, +) or (−, −) is applied to a partial sequence of the Walsh sequence. For RS of CQI transmitted from a mobile station, + is added as an RS phase of the second symbol and − is added as an RS phase of the sixth symbol. A base station () receives multiplexed signals of ACK/NACK signals and CQI signals transmitted from a plurality of mobile stations. An RS synthesis unit () performs synthesis by aligning the RS phase of CQI. 1. A radio communication method comprising:receiving an acknowledgement or non-acknowledgement (ACK/NACK) signal that is spread with an orthogonal sequence, which is selected from a plurality of orthogonal sequences, the plurality of orthogonal sequences including more orthogonal sequences that render two values respectively corresponding to Nth symbol and Mth symbol of an ACK/NACK signal transmission slot in phase, than orthogonal sequence(s) that render said two values in opposite phases from each other;despreading, with said orthogonal sequence, the spread ACK/NACK signal in the ACK/NACK signal transmission slot;receiving two reference signals (RS), which are produced by multiplying two reference signal sequences with values having opposite phases from each other and which are arranged in the Nth symbol and the Mth symbol of a CQI signals transmission slot, and receiving channel quality indicator (CQI) signals arranged in symbols of the CQI signals transmission slot other than the Nth symbol and the Mth symbol; anddemodulating the CQI signals arranged in the CQI signals transmission slot.2. The radio communication method according to claim 1 , whereina physical resource, which supports a mixture of a ...

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Номер записи: 171

18-04-2013 дата публикации

TERMINAL APPARATUS, BASE STATION APPARATUS, RETRANSMISSION METHOD AND RESOURCE ALLOCATION METHOD

Номер: US20130094349A1

Автор: Hoshino Masayuki, Imamura Daichi, Iwai Takashi, Nakao Seigo, Nishio Akihiko

Принадлежит: Panasonic Corporation

This invention provides a terminal apparatus that can suppress the quality degradation caused by a propagation path variation when implementing a retransmission control method using non-adaptive HARQ in a wireless communication system utilizing the MIMO communication technique. In this apparatus, a number-of-retransmissions counting unit () counts a number of retransmission requests (L) for the same code word. A predetermined precoder designating unit () changes precoders between when the number of retransmission requests (L) is less than N and when the number of retransmission requests (L) is equal to or greater than N plus one. A PDCCH generation unit () determines, based on a result of comparison between the number of retransmission requests (L) for the same CW and the number of retransmission requests (N) established for the change of precoders, a precoder to be used by terminals, and further allocates, based on the determined precoder, resources to the plurality of terminals. 1. A terminal apparatus comprising:a codeword generating section that encodes a data sequence to generate codewords;a receiving section that receives a response signal indicating a retransmission request for the codewords, the response signal being allocated to a response resource;an instructing section that instructs a precoder to be switched based on the number of retransmission requests for the same codeword or a switch instructing signal reported using the response resource;a precoding section that precodes the codeword using the precoder, based on the instruction to switch the precoder; anda transmitting section that transmits the precoded codeword.2. The terminal apparatus according to claim 1 , wherein the instructing section instructs the precoder to be switched when the number of retransmission requests reaches N.3. The terminal apparatus according to claim 1 , wherein the instructing section instructs the precoder to be switched when the terminal apparatus acquires the switch ...

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Номер записи: 172

18-04-2013 дата публикации

WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD

Номер: US20130094419A1

Автор: Horiuchi Ayako, Imamura Daichi, Sumasu Atsushi, Yuda Yasuaki

Принадлежит: Panasonic Corporation

The transmission of a reference signal, such as a CSI-RS, is enabled while maintaining a power saving effect when performing inter-cell cooperative transmission/reception or the like in a plurality of cells. In order to realize inter-cell cooperative transmission/reception, a CSI-RS which is used for estimating the state of a spatial propagation path of a communication line is generated by a CSI-RS generation unit, and the CSI-RS is disposed in a predetermined subframe by a disposition unit and transmitted. At this time, when a frame has ten subframes # to , the CSI-RS is disposed in the subframes # and #, which are subframes excluding the subframes # and # incapable of transmitting a CSI-RS and are subframes other than subframes capable of acting as MBSFN subframes when discontinuous communication (Extended Cell DTX) is performed so as to achieve power saving, and transmitted. 1. A wireless communication device comprising:a reference signal generation unit configured to generate a reference signal to be used for estimating a state of a spatial propagation path of a communication line;a disposition unit configured to, when a frame has a plurality of subframes separately disposed on at least a time axis, dispose the reference signal in subframes excluding subframes incapable of transmitting the reference signal from among a plurality of subframes and other than subframes capable of acting as discontinuous communication applicable subframes when discontinuous communication is performed; anda transmission unit configured to transmit a transmission signal including the disposed reference signal.2. The wireless communication device according to claim 1 ,wherein the reference signal is a signal which is transmitted from each of a plurality of cells and received for estimating a state of a spatial propagation path of a communication line from each cell in one terminal.3. The wireless communication device according to claim 1 ,{'b': 0', '9, 'wherein the frame has ten ...

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Номер записи: 173

25-04-2013 дата публикации

INTEGRATED CIRCUIT FOR SEQUENCE REPORTING AND SEQUENCE GENERATION

Номер: US20130100890A1

Автор: Futagi Sadaki, Imamura Daichi, Inogai Kazunori, Iwai Takashi, MATSUMOTO Atsushi

Принадлежит: Panasonic Corporation

Disclosed are a sequence report method and a sequence report device for reducing a signaling amount for reporting a Zadoff-Chu sequence or a GCL sequence allocated for a cell. Indexes starting at 1 are correlated to different ZC sequences and are allocated for cells so that the indexes are continuous. When such ZC sequences are reported from BS to UE, a start index indicating the start of the continuous indexes is combined with the number of allocated sequences and they are reported as allocation sequence information by a report channel. The UE and the BS share the correlation between the ZC sequences and the indexes and the UE identifies a usable sequence number according to the correlation and the allocation sequence information reported from the BS. 1. An integrated circuit for controlling a process comprising:allocating at least one of sequences with consecutive indices among a plurality of sequences, which are indexed by the indices having consecutive numbers in order of generally increasing to a maximum value and then decreasing, from the maximum value, a cyclic shift amount corresponding to a Doppler shift according to a sequence number; andreporting the index of the allocated sequence.2. The integrated circuit according to claim 1 , wherein the cyclic shift amount corresponding to the Doppler shift is a cyclic shift amount corresponding to a Doppler shift for a mobile station moving at high speed.3. The integrated circuit according to claim 1 , wherein the cyclic shift amount depends on the sequence number.4. The integrated circuit according to claim 1 , wherein the plurality of sequences are indexed by the indices having consecutive numbers in the sequence number order of a and N−a claim 1 , wherein N is a sequence length and a is an integer whose value ranges between 1 and N−1.5. The integrated circuit according to claim 4 , wherein the plurality of sequences are indexed by the indices having consecutive numbers in the sequence number order of a and N−a ...

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Номер записи: 174

25-04-2013 дата публикации

BASE STATION, TERMINAL, SEARCH SPACE SETTING METHOD AND DECODING METHOD

Номер: US20130100921A1

Автор: Horiuchi Ayako, Imamura Daichi, Nakao Seigo, Nishio Akihiko

Принадлежит: Panasonic Corporation

The invention provides a base station that does not cause the number of blind decodings to be increased and further can prevent the flexibility of resource allocation from degrading. A search space setting unit () sets search spaces each of which is constituted by one or more control channel elements (CCEs) and each of which is to be decoded in the terminals and each of which is defined by a plurality of to-be-decoded candidates. An allocating unit () places, in one of the plurality of to-be-decoded candidates included in the search space, a control channel. The number of connections of CCEs constituting the to-be-decoded candidate is associated with the number of to-be-decoded candidates. The search space setting unit () causes, in accordance with the control channel to be transmitted, the association of the number of connections of CCEs constituting the to-be-decoded candidate with the number of to-be-decoded candidates to differ. 1. A base station comprising:a configuration section that configures a search space defined by a plurality of candidates targeted for decoding at a terminal, each of the candidates being formed by at least one control channel element (CCE); anda transmitting section that allocates a control channel in any of the plurality of candidates targeted for decoding included in the configured search space and transmits the control channel to the terminal, whereinthe number of the concatenated CCEs forming each of the candidates targeted for decoding is associated with the number of the candidates targeted for decoding, andthe configuration section varies the association between the number of the concatenated CCEs forming each of the candidates targeted for decoding and the number of the candidates targeted for decoding depending on the control channel to be transmitted.2. The base station according to claim 1 , whereinthe configuration section configures the search space on the basis of a configuration rule dependent on the control channel to be ...

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Номер записи: 175

25-04-2013 дата публикации

WIRELESS RELAYING DEVICE, WIRELESS TRANSMISSION DEVICE, AND WIRELESS RELAYING METHOD

Номер: US20130100988A1

Автор: Enoki Takashi, Imamura Daichi, Miyoshi Kenichi, Nakao Seigo

Принадлежит: Panasonic Corporation

Provided is a wireless relaying device, wherein system capacity can be increased by reducing power consumption required for relay processing at mobile stations equipped with relaying function. This is a relaying node () that relays communication between an originating node and a destination node, and that is provided with: a demodulation unit () that demodulates a signal transmitted from the originating node; a decoding unit () that obtains a signal destined for the relaying node (), by decoding an amplitude bit from among a plurality of bits that comprise each of the symbols of the signal demodulated by the demodulation unit (); and a modulation unit () that generates a relay signal destined for the destination node, by modulating a phase bit from among the plurality of bits that comprise each of the symbols of the signal demodulated by the demodulation unit (). 1. A radio relay apparatus that relays communication between a radio transmitting apparatus and a radio receiving apparatus , comprising:a demodulation section that demodulates a signal transmitted from the radio transmitting apparatus;a decoding section that decodes an amplitude bit among a plurality of bits constituting each symbol of the demodulated signal, to obtain a signal directed to the radio relay apparatus; anda modulation section that modulates a phase bit among the plurality of bits constituting each symbol of the demodulated signal, to generate a relay signal directed to the radio receiving apparatus.2. The radio relay apparatus according to claim 1 , wherein the modulation section modulates the phase bit using a modulation scheme with a smaller amplitude variation than a modulation scheme of the signal transmitted from the radio transmitting apparatus.3. The radio relay apparatus according to claim 1 , wherein the modulation section modulates the phase bit in a modulation scheme using only phase claim 1 , and further comprising a transmitting section that transmits the phase bit modulated by ...

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Номер записи: 176

16-05-2013 дата публикации

RADIO COMMUNICATION DEVICE AND CONSTELLATION CONTROL METHOD

Номер: US20130121129A1

Автор: Imamura Daichi, Nakao Seigo

Принадлежит: Panasonic Corporation

A base station is provided for receiving an acknowledgement or negative acknowledgement (ACK/NACK) signal, including a transmitting unit configured to transmit a control signal using one or a plurality of CCE(s). The base station also includes a receiving unit configured to receive an ACK/NACK signal, the ACK/NACK signal being multiplied by an orthogonal sequence, by a sequence defined by a cyclic shift, and by either a first value or a second value, wherein the first value rotates a constellation of the ACK/NACK signal by 0 degrees and the second value rotates the constellation of the ACK/NACK signal by N degrees, which is different from 0 degrees. 1. A base station for receiving an acknowledgement or negative acknowledgement (ACK/NACK) signal , comprising:a transmitting unit configured to transmit a control signal using one or a plurality of Control Channel Elements (CCE(s));a receiving unit configured to receive an ACK/NACK signal, the ACK/NACK signal being multiplied by an orthogonal sequence, by a sequence defined by a cyclic shift, and by either a first value or a second value, wherein the first value rotates a constellation of the ACK/NACK signal by 0 degree and the second value rotates the constellation of the ACK/NACK signal by N degree, which is different from 0 degree on an axis of rotation, and wherein the orthogonal sequence has a sequence index corresponding to a Physical Uplink Control Channel (PUCCH) index associated with a first CCE number of said one or a plurality of CCE(s) and the cyclic shift corresponds to the PUCCH index;wherein, in a case where said PUCCH index is in a first PUCCH index group, the ACK/NACK signal is multiplied by the same one of the first value or the second value for both communication in a first slot and communication in a second slot, and in a case where said PUCCH index is in a second PUCCH index group, the ACK/NACK signal is multiplied by different ones of the first value and the second value, respectively, for ...

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Номер записи: 177

16-05-2013 дата публикации

BASE STATION, RELAY STATION, TRANSMISSION METHOD, AND RECEPTION METHOD

Номер: US20130121237A1

Автор: Horiuchi Ayako, Imamura Daichi, Nakao Seigo

Принадлежит: Panasonic Corporation

The present invention provides a base station whereby efficient resource allocation for data signals is realized. In a base station () where a downlink control signal directed to a relay station is mapped onto an allocation area (R-PDCCH allocation area candidate) comprising M (where M is a natural number of 2 or greater) resource blocks, an allocation area candidate determination section () distributes the M resource blocks among N (where N is a natural number less than M) allocation area groups, and determines N resource block groups for the placement of the allocation area groups; and a control signal allocation section () maps the downlink control signal directed to the relay station onto the M resource blocks that are specified on the basis of the determined N resource block groups and the number of resource blocks constituting each of the allocation area groups. 1. A base station that transmits a downlink control signal directed to a relay station by mapping the downlink control signal to an allocation region composed of M (M is a natural number of 2 or greater) resource blocks , comprising:a determining section that distributes the M resource blocks to N (N is a natural number smaller than M) allocation region groups and determines N resource block groups in which each of the allocation region groups is arranged; anda mapping section that maps the downlink control signal directed to the relay station to M resource blocks identified based on the number of resource blocks constituting each of the allocation region groups and the N resource block groups.2. The base station according to claim 1 , wherein the determining section distributes the M resource blocks based on the unit of one resource block.3. The base station according to claim 1 , wherein the determining section distributes the M resource blocks based on the unit of the number of resource blocks constituting the resource block group.4. The base station according to claim 1 , wherein the determining ...

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Номер записи: 178

16-05-2013 дата публикации

BASE STATION DEVICE, TERMINAL DEVICE, TRANSMISSION METHOD, AND RECEPTION METHOD

Номер: US20130121295A1

Автор: Feng Sujuan, Golitschek Edler Von Elbwart Alexander, Horiuchi Ayako, Imamura Daichi, Nakao Seigo, Nishio Akihiko, Saito Yoshiko

Принадлежит: Panasonic Corporation

A base station device causing no decrease in system throughput and guaranteeing the reception quality at a terminal when a DCI directed toward the terminal is mapped to a PDCCH region and an R-PDCCH region. A search space setting unit () sets a search space having a plurality of allocation candidates, in both regions. An allocation unit () allocates control information to a resource in one allocation candidate in the search space. The ratio of the number of allocation candidates in the R-PDCCH region to the number of allocation candidates in the PDCCH region in the search space for a terminal using DM-RS in the R-PDCCH region is equal to or greater than the ratio of the number of allocation candidates in the R-PDCCH region to the number of allocation candidates in the PDCCH region in the search space for a terminal using CRS in the R-PDCCH region. 1. A base station apparatus that transmits control information using a first control channel and a second control channel , the first control channel using a common reference signal that is receivable by all terminal apparatuses , the second control channel using the common reference signal or a specific reference signal for each terminal apparatus , the base station apparatus comprising:a search space configuring section that configures a search space having a plurality of allocation candidates, in a first resource region to which the first control channel is mapped and a second resource region to which the second control channel is mapped; andan allocating section that allocates the control information to a resource in one allocation candidate from among the plurality of allocation candidates in the search space, wherein:a ratio of a number of the allocation candidates in the second resource region to a number of the allocation candidates in the first resource region in the search space configured in the terminal apparatus using the specific reference signal in the second control channel is equal to or greater than a ...

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Номер записи: 179

16-05-2013 дата публикации

RADIO RECEIVER APPARATUS AND RADIO TRANSMITTER APPARATUS

Номер: US20130121445A1

Автор: Aramaki Takashi, Futagi Sadaki, Hiramatsu Katsuhiko, Imamura Daichi, Iwai Takashi, Miyoshi Kenichi, Nishio Akihiko

Принадлежит: Panasonic Corporation

A radio receiver apparatus that can effectively utilize GI to improve the reception quality. In this apparatus, a data extracting part extracts a data portion of a direct wave from a signal subjected to a radio reception process by a received RF part. A GI extracting part extracts, from the signal subjected to the radio reception process by the received RF part, GI having a length determined by an extracted GI length deciding part. The extracted GI is adjusted by a data position adjusting part such that its rear end coincides with the read end of the extracted data portion. A combining part combines the extracted data portion with the GI the data position of which has been adjusted. The combined signal is then supplied to a frequency axis equalizing part, which equalizes the signal distortions of the combined signal on the frequency axis. 1. A radio receiving apparatus that is configured to receive , in a single carrier transmission system , a plurality of data symbols that are included in a data part and arranged between a front end and a rear end of the data part , the radio receiving apparatus comprising:a receiving section that is configured to receive, during a cyclic prefix period, one or more data symbols including data that is the same as data included in a portion of the plurality of data symbols which are arranged to map at least one data symbol including ACK/NACK information from the rear end of the data part, the portion ranging from the rear end of the data part and corresponding to the cyclic prefix period to thereby contain said at least one data symbol including ACK/NACK information, the receiving section being further configured to receive the plurality of data symbols in the data part after the cyclic prefix period;to thereby receive, during the cyclic prefix period, said one or more data symbols including data that is the same as data included in the portion containing said at least one data symbol including ACK/NACK information, and to receive, ...

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Номер записи: 180

23-05-2013 дата публикации

BASE STATION, MOBILE STATION, METHOD FOR TRANSMITTING CALCULATION PARAMETERS FOR POWER HEADROOM, AND METHOD FOR TRANSMITTING POWER HEADROOM

Номер: US20130128856A1

Автор: Hoshino Masayuki, Imamura Daichi, Iwai Takashi, Nishio Akihiko, Takaoka Shinsuke

Принадлежит: Panasonic Corporation

Provided are a base station, a mobile station, a method for transmitting calculation parameters for a power headroom and a method for transmitting a power headroom capable of increasing the accuracy of link adaptation by reducing the probability that a power headroom value is out of a reported range. In a base station (), a PHR bandwidth notifier () determines a bandwidth for power headroom calculation to be used for calculating a power headroom by a mobile station () for a component carrier to which an unlink allocation signal (UL grant) is not mapped and generates a notification signal containing information on the determined bandwidth for power headroom calculation, and a transmitting means (modulator (), transmission RF unit ()) transmits the generated notification signal to the mobile station (). Specifically, the PHR bandwidth notifier () determines a bandwidth for PHR calculation according to an estimated path-loss level. 1. A base station that configures a plurality of component carriers for a mobile station and communicates with the mobile station using at least one of the plurality of component carriers , comprising:a signal generation section that determines a bandwidth for power headroom calculation used by the mobile station to calculate a power headroom representing a transmission power reserve capacity of the mobile station in component carriers with no uplink allocation control signal allocated, and generates a notification signal containing information on the determined bandwidth for power headroom calculation; anda transmitting section that transmits the generated notification signal to the mobile station.2. The base station according to claim 1 , further comprising an estimation section that estimates a path-loss level between the mobile station and the base station claim 1 , wherein:the signal generation section determines a bandwidth for power headroom calculation used by the mobile station based on a correlation between N types (N is a natural ...

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Номер записи: 181

30-05-2013 дата публикации

TERMINAL APPARATUS, BASE STATION APPARATUS, AND COMMUNICATION METHOD

Номер: US20130136085A1

Автор: Imamura Daichi, Iwai Takashi, Miyoshi Kenichi, Ogawa Yoshihiko, Takata Tomofumi

Принадлежит: Panasonic Corporation

Provided is a cyclic shift sequence generation method which can prevent coming of an interference wave into a desired wave detection window even if a cyclic shift sequence has a high mutual correlation in different bandwidths, thereby improving a channel estimation accuracy in a base station. In this method, a cyclic shift sequence number to be allocated to a cell is decided in advance. Moreover, when the cyclic shift amount between cyclic shift sequences allocated in cells is Δ and the cyclic shift amount of the cyclic shift sequences allocated between the cells is Δ and Δ are made different when generating a cyclic shift sequence. 1. A terminal apparatus comprising:a reception section configured to receive control information transmitted from a base station;a generating section configured to generate a reference signal based on a cyclic shift number out of a plurality of cyclic shift numbers, the cyclic shift number being given by the control information; anda transmission section configured to transmit the reference signal,wherein the plurality of cyclic shift numbers includes two cyclic shift numbers, which are next to each other in order of cyclic shift number and a difference between which is a first interval, and two cyclic shift numbers, which are next to each other in order of cyclic shift number and a difference between which is a second interval different from the first interval.2. The terminal apparatus according to claim 1 , wherein the first interval is smaller than the second interval.3. The terminal apparatus according to claim 1 , wherein a difference between the x-th largest cyclic shift number and the (x−1)-th largest cyclic shift number out of the plurality of cyclic shift numbers is the first interval or the second interval.4. The terminal apparatus according to claim 3 , wherein whether the difference between the x-th largest cyclic shift number and the (x−1)-th largest cyclic shift number is the first interval or the second interval is shared ...

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Номер записи: 182

06-06-2013 дата публикации

TERMINAL DEVICE, BASE STATION DEVICE, RETRANSMISSION METHOD, AND RESOURCE ALLOCATION METHOD

Номер: US20130142160A1

Автор: Hoshino Masayuki, Imamura Daichi, Nishio Akihiko

Принадлежит: Panasonic Corporation

The present invention provides a terminal device that allows constraints on user allocation to be prevented and spread codes to be allocated in a scheduler when non-adaptive HARQ is employed using a PHICH. A codeword generator () generates code words (CW) by encoding data, a layer mapping unit () places each CW in one or a plurality of layers, a DMRS generator () generates a reference signal for each layer in which a CW is placed by using any resource among a plurality of resources defined by a mutually orthogonal plurality of OCCs, and an ACK/NACK demodulator () receives a response signal indicating a retransmission request. When a response signal requesting retransmission of only a CW placed in a plurality of layers is received, the DMRS generator () uses each resource having the same OCC among the plurality of resources for the reference signals generated in the corresponding layers. 1. A terminal apparatus comprising:a code word generating section that generates a code word by encoding a data sequence;a mapping section that allocates each code word to one or a plurality of layers;a reference signal generating section that generates a reference signal for each of the layers to which the code word is allocated, using any of resources from among a plurality of resources defined by a plurality of codes orthogonal to each other; anda receiving section that receives a response signal indicating a retransmission request for the code word,wherein in a case where the received response signal is to request for retransmission of only a single code word allocated to the plurality of layers, the reference signal generating section uses resources having a same code from among the plurality of resources, for the reference signal generated for each of the plurality of layers.2. The terminal apparatus according to claim 1 , further comprising:a storage section that stores the resources used for the reference signal generated for each of the plurality of layers in a first ...

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Номер записи: 183

13-06-2013 дата публикации

BASE STATION, TERMINAL, TRANSMISSION METHOD, AND RECEPTION METHOD

Номер: US20130148623A1

Автор: Horiuchi Ayako, Imamura Daichi, Matsuo Hidenori, Nakao Seigo, Nishio Akihiko

Принадлежит: Panasonic Corporation

Provided are a base station, a terminal whereby erroneous detection of control information can be reduced to prevent the degradation of the system throughput. A PDCCH generation unit () forms a downstream allocation control information unit (i.e., DCI) including cyclic redundant check (CRC) bits, which have been masked or scrambled by use of ID information of a terminal (), and further including a bit sequence (i.e., virtual CRC) known between the terminal () and the base station; and an allocation unit () and a multiplex unit () map the formed DCI to a resource region (i.e., R-PDCCH region) that can be used as any one of a downstream control channel region and a downstream data channel region. That is, the PDCCH generation unit () includes the virtual CRC into the DCI only when the DCI addressed to the terminal () is mapped to the R-PDCCH region. 1. A base station comprising:a generation section that generates control information that includes both of a cyclic redundancy check (CRC) bit masked or scrambled by identification information of a terminal and a known bit known by the terminal; anda mapping section that maps the generated control information in a resource region available to both of a control channel and a data channel.2. The base station according to claim 1 , wherein the control information comprises a plurality of fields claim 1 , and the known bit is included in specific one of the plurality of fields.3. The base station according to claim 2 , wherein the known bit is included in the specific field that notifies the terminal of a resource block (RB) allocated as the data channel.4. The base station according to claim 2 , wherein the known bit is included in the specific field that notifies the terminal of a modulation and coding scheme.5. The base station according to claim 1 , wherein the generation section adds a padding bit such that the control information has a certain bit size.6. A terminal comprising:a reception section that receives control ...

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Номер записи: 184

20-06-2013 дата публикации

TRANSMISSION DEVICE, RECEIVING DEVICE, TRANSMISSION METHOD AND RECEIVING METHOD

Номер: US20130155996A1

Автор: Horiuchi Ayako, Imamura Daichi, Nishio Akihiko, Saito Yoshiko

Принадлежит: Panasonic Corporation

A base station () transmits a DL grant for a terminal () by mapping it to an R-PDCCH region, thus transmitting a series of data groups to the terminal () by the SPS method. A transmission control unit () sets in the R-PDCC H region a control resource region which maps a data resource and the DL grant i n a resource block group common in frames to be transmitted by the SPS method. 1. A transmission apparatus that maps control signals for a reception apparatus to a first resource region usable for a control channel or a data channel or to a second resource region usable for a control channel , transmits the mapped signals , and transmits a series of data to the reception apparatus while distributing the series of data to data resources in N transmission subframes (where N is a natural number greater than or equal to two) , the transmission apparatus comprising:a generating section that generates scheduling control signals for the data resources;a setting section that sets the data resources, and a control resource region to which the scheduling control signals are mapped in the first resource region in a resource block group (RBG) being formed of M resource blocks (RBs) (where M is a natural number greater than or equal to two) and being common between the transmission subframes; anda mapping section that maps the series of data to the set data resources and maps the scheduling control signals to the control resource region, whereinthe setting section sets the resource region set as the control resource region in the first transmission subframe of the N transmission subframes to be the data resource in the transmission subframes except for the first transmission subframe.2. The transmission apparatus according to claim 1 , wherein claim 1 ,the region of the RBG other than the second resource region includes a first region set as the control resource region in the first transmission subframe, a second region other than the first region in RBs including the first region ...

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Номер записи: 185

27-06-2013 дата публикации

RELAY STATION, BASE STATION AND COMMUNICATION METHOD

Номер: US20130163507A1

Автор: Horiuchi Ayako, Hoshino Masayuki, Imamura Daichi, Suzuki Hidetoshi

Принадлежит: Panasonic Corporation

Provided is a relay station that is capable of improving PDSCH channel estimation accuracy, even in a case where a DL grant is provided that gives instructions for downlink data allocation for R-PDCCH. In this device, a signal separation unit () receives, of the control information and data and reference signals sent from a base station (), the reference signals disposed in a first region and a second region within a pre-coding RB group (PRG) comprising one or more PRBs of the plurality of PRBs constituting a divided frequency region; the control information disposed in the first region; and the data disposed in the second region. A demodulation unit () demodulates the data on the basis of the reference signals. The demodulation unit () demodulates the data using the reference signals disposed in the second region. 1. A relay station in a communication system in which a base station and a mobile station communicate with each other via the relay station , the relay station comprising:a receiving section that receives control information, data, and reference signals transmitted from the base station, the reference signals being mapped in a first region and a second region in a precoding resource block (RB) group (PRG) formed of one or more resource blocks (RBs) among a plurality of RBs formed by dividing a frequency region, the control information being mapped in the first region, and the data being mapped in the second region; anda demodulation section that demodulates the data on the basis of the reference signals, whereinthe demodulation section demodulates the data using the reference signals mapped in the second region.2. The relay station according to claim 1 , whereinthe second region includes: a third region that is in the same frequency region as an RB forming the first region and that is subsequent to the RB in the time domain; and a fourth region having a frequency different from the first region, andthe demodulation section demodulates the data mapped in ...

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Номер записи: 186

27-06-2013 дата публикации

TRANSMISSION DEVICE AND TRANSMISSION METHOD

Номер: US20130163573A1

Автор: Horiuchi Ayako, Imamura Daichi, Nakao Seigo, Oizumi Toru, Suzuki Hidetoshi

Принадлежит: Panasonic Corporation

Provided are a transmission device and transmission method that are capable of allowing leeway in data reception processing on the receiving side regardless of the position in time of a resource region to which control information, which is contained in resource allocation information for transmission data, is mapped. A setting unit () sets a mapping region, which maps a DCI in accordance with the downlink data size that the DCI indicates, from among a PDCCH region, an R-PDCCH region in slot , and an R-PDCCH region in slot that are provided in order in the time direction within a subframe. In a setting rule table used in setting the mapping region, PDCCH region, R-PDCCH region in slot , and R-PDCCSH region in slot are associated with maximum size value of a downlink data size that the DCI indicates and that can be set in each resource region. 1. A transmission apparatus comprising:{'sup': 'th', 'a configuration section that configures a mapping region in which control information is mapped, the control information including information about a resource region allocated to transmission data and data size information about a size of the transmission data, the configuration section configuring the mapping region for control information targeted for processing, in accordance with a data size indicated by the control information targeted for processing, from among first to N(N being a natural number no less than 2) resource regions provided in sequential order in a time direction within a communication unit time; and'}a mapping control section that maps the control information targeted for processing to the configured mapping region and transmits the control information.2. The transmission apparatus according to claim 1 , further comprising:{'sup': th', 'th', 'th', 'th, 'a configuration rule table in which the first to Nresource regions and maximum size values of downlink data sizes indicated by control information that can be configured in each resource region are ...

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Номер записи: 187

04-07-2013 дата публикации

TRANSMITTER APPARATUS, RECEIVER APPARATUS, TRANSMISSION METHOD, AND RECEPTION METHOD

Номер: US20130170467A1

Автор: Imamura Daichi, Nishio Akihiko, Ogawa Yoshihiko

Принадлежит: Panasonic Corporation

In a terminal (), a transmission control unit () identifies candidate resources on the basis of setting information and determines, on the basis of a trigger signal, a mapping resource, in which a second type of reference signal is mapped, in candidate frequency unit groups constituting the candidate resources. Each of the candidate resources is constituted by a plurality of fundamental subframe groups that are arranged at first intervals. N constituent subframes constituting each of the fundamental subframe groups are arranged at second intervals narrower than the first intervals. Each of the candidate frequency units of each candidate frequency unit group is a frequency unit specified by a predetermined frequency hopping pattern in M frequency units in each constituent subframe. 1. A transmitter apparatus of as reference signal , comprising:a reception section that receives setting information regarding a candidate resource to which a reference signal is mapped, in a physical layer;a specifying section that specifies the candidate resource on the basis of the setting information;a determination section that determines a mapping resource to which a reference signal is mapped on the basis of a trigger signal in a candidate frequency unit group forming the candidate resource; anda transmission section that maps a reference signal to the determined mapping resource and transmits the mapped reference signal, whereinthe candidate resource includes a plurality of basic subframe groups disposed at a first interval, and N (where N is a natural number which is equal to or more than 2) constituent subframes forming each basic subframe group are disposed at a second interval shorter than the first interval, andeach candidate frequency unit of the candidate frequency unit group is a frequency unit which is regulated by a predetermined frequency hopping pattern among M (where M is a natural number which is equal to or more than 2) frequency units of each constituent subframe.2. ...

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Номер записи: 188

11-07-2013 дата публикации

Wireless communication method, wireless communication terminal and base station

Номер: US20130176948A1

Автор: Daichi Imamura, Hui Tong, Masayuki Hoshino, Ming Xu, Seigo Nakao

Принадлежит: Panasonic Corp

A wireless communication method, a terminal and a base station are provided. The method includes the step of transmitting a plurality of best companion pre-coding matrix indexs (BCIs) and corresponding delta channel quality indicators (ΔCQIs) from the terminal to the base station, wherein the period of frames for transmitting the plurality of BCIs is larger than the period of frames for transmitting a single BCI. The method, terminal and base station according to the present disclosure can greatly increase scheduling flexibility at base station side and improve MU-MIMO performance without increasing feedback overhead of channels.

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Номер записи: 189

11-07-2013 дата публикации

COMMUNICATION APPARATUS AND RECEPTION METHOD

Номер: US20130176962A1

Автор: Futagi Sadaki, Imamura Daichi, Iwai Takashi, Nakao Seigo, Ogawa Yoshihiko, Takata Tomofumi

Принадлежит: Panasonic Corporation

It is possible to provide a radio communication terminal device and a radio transmission method which can improve reception performance of a CQI and a reference signal. A phase table storage unit stores a phase table which correlates the amount of cyclic shift to complex coefficients {w1, W2} to be multiplied on the reference signal. A complex coefficient multiplication unit reads out a complex coefficient corresponding to the amount of cyclic shift indicated by resource allocation information, from the phase table storage unit and multiplies the read-out complex coefficient on the reference signal so as to change the phase relationship between the reference signals in a slot. 1. A communication apparatus comprising:a receiver configured to receive a signal including a reference signal; andan estimator configured to estimate a channel estimation value using the reference signal in accordance with a switching signal,wherein the switching signal switches between a first correspondence relationship and a second correspondence relationship, each defining a relationship regarding a cyclic shift used for the reference signal,the first correspondence relationship defines an orthogonal relationship between a first coefficient corresponding to a first number for specifying the cyclic shift and a second coefficient corresponding to a second number having a determined difference from the first number for specifying the cyclic shift, andthe second correspondence relationship defines a non-orthogonal relationship between the first coefficient corresponding to a third number for specifying the cyclic shift and the second coefficient corresponding to a fourth number having said determined difference from the third number for specifying the cyclic shift.2. The communication apparatus according to claim 1 , wherein the first number is different from the third number claim 1 , and the second number is different from the fourth number.3. The communication apparatus according to claim ...

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Номер записи: 190

18-07-2013 дата публикации

RADIO TRANSMISSION APPARATUS, AND RADIO TRANSMISSION METHOD

Номер: US20130182669A1

Автор: Futagi Sadaki, Imamura Daichi, Iwai Takashi, MATSUMOTO Atsushi

Принадлежит: Panasonic Corporation

Provided is a communication device, which is enabled to improve the throughput of a communication system by reducing the difference of a transmission power between an SCCH and an SDCH thereby to satisfy the required quality of a PAPR. In this device, an MCS selection unit () of a transmission unit () decides, with reference to a CQI lookup table, an MCS pattern (MCS) of the SDCH, an MCS pattern (MCS) of the SCCH and information (multiplex information) on multiplex positions on the time axes of those two channels, on the basis of the CQI information. On the basis of the MCS and the MCS encoding modulation units ( and ) perform encoding and modulating operations. According to the multiplex information, a channel multiplexing unit () time-division multiplexes the SCCH and the SDCH thereby to generate a transmission signal. 1. A transmitting method , comprising:determining a first coding rate based on information for determining the first coding rate transmitted by a base station;calculating a second coding rate based on the information for determining the first coding rate and offset information transmitted by the base station;transmitting a first type of data using the first coding rate; andtransmitting a second type of data using the second coding rate.2. The method of wherein the calculating the second coding rate comprises adjusting the first coding rate based on the offset information.3. The method of wherein the calculating the second coding rate comprises using a look-up table.4. The method of wherein the calculating the second coding rate is performed by dedicated circuitry of a mobile device.5. The method of wherein the first type of information comprises user data and the second type of information comprises control information.6. The method of wherein the first type of information comprises user data and the second type of information comprises control information.7. The method of wherein the information for determining the first coding rate and the offset ...

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Номер записи: 191

01-08-2013 дата публикации

INTEGRATED CIRCUIT FOR CONTROLLING RADIO COMMUNICATION PROCESS

Номер: US20130195146A1

Автор: Imamura Daichi, Nakao Seigo

Принадлежит: Panasonic Corporation

Provided is a radio communication device which can make Acknowledgement (ACK) reception quality and Negative Acknowledgement (NACK) reception quality to be equal to each other. The device includes: a scrambling unit () which multiplies a response signal after modulated, by a scrambling code “1” or “e” so as to rotate a constellation for each of response signals on a cyclic shift axis; a spread unit () which performs a primary spread of the response signal by using a Zero Auto Correlation (ZAC) sequence set by a control unit (); and a spread unit () which performs a secondary spread of the response signal after subjected to the primary spread, by using a block-wise spread code sequence set by the control unit (). 1. An integrated circuit for controlling a process comprising:multiplying an ACK or NACK symbol with an orthogonal sequence, which is one of plural orthogonal sequences, and with a sequence defined by a cyclic shift value, which is one of plural cyclic shift values and which is associated with the orthogonal sequence; and{'sup': 'j(π/2)', 'scrambling the ACK or NACK symbol by 1 or e;'}{'sup': 'j(π/2)', 'wherein the ACK or NACK symbol is scrambled by 1 when a cyclic shift value that defines the sequence, with which the ACK or NACK symbol is multiplied, is one of two cyclic shift values that are associated with one of the plural orthogonal sequences and that are next to each other at a set interval, and is scrambled by ewhen a cyclic shift value that defines the sequence, with which the ACK or NACK symbol is multiplied, is the other of the two cyclic shift values.'}2. The integrated circuit according to claim 1 , wherein the set interval is a minimum difference between plural cyclic shift values that are associated with one of the plural orthogonal sequences.3. The integrated circuit according to claim 1 , wherein the set interval is a difference between two cyclic shift values claim 1 , which are closest to each other among plural cyclic shift values that are ...

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Номер записи: 192

15-08-2013 дата публикации

CONFIGURATION OF UPLINK AND DOWNLINK GRANT SEARCH SPACES IN AN OFDM-BASED MOBILE COMMUNICATION SYSTEM

Номер: US20130208645A1

Автор: Feng Sujuan, Golitschek Edler Von Elbwart Alexander, Horiuchi Ayako, Imamura Daichi

Принадлежит: Panasonic Corporation

The invention relates to methods for detecting at least one of a downlink grant and an uplink grant within a sub-frame of an OFDM-based mobile communication system. The invention provides a reception apparatus (e.g. a relay node or a mobile terminal) that are adapted to perform these methods. The invention defines the uplink grant search space to form a subset of the downlink grant search space. In other words, in the frequency domain, the uplink grant search space is defined on a subset of the resource block pairs that form the downlink search space. This configuration allows downlink data to be mapped to the remaining resources outside the uplink grants search space and the resources used for a downlink grant. Furthermore, the downlink grants comprise an indication of whether the uplink grant search space in the sub-frame comprises (user) data or not. 115-. (canceled)16. A method for detecting at least one of a downlink grant and an uplink grant within a sub-frame of a OFDM-based mobile communication system , the method comprising the following steps performed by a reception apparatus:receiving a sub-frame from a base station, wherein the sub-frame is logically divided into physical resource block pairs, and a respective resource block pair consisting of a resource block within a first slot of the sub-frame and a resource block within a second slot of the sub-frame,performing a blind detection for a downlink grant within a downlink grant search space of the sub-frame, wherein the downlink grant search space consists of plural physical resource blocks of resource block pairs within the first slot of the sub-frame, andperforming a blind detection for an uplink grant within an uplink grant search space of the sub-frame, wherein the uplink grant search space consists of plural physical resource blocks within the second slot of the sub-frame, and wherein the physical resource blocks within the second slot is located within a subset of the physical resource block pairs, ...

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Номер записи: 193