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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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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 92195. Отображено 100.
05-01-2012 дата публикации

User equipment terminal, base station, and channel quality information report method

Номер: US20120002556A1
Автор: Kenichi Higuchi, Mamoru Sawahashi, Yoshihisa Kishiyama
Принадлежит: NTT DOCOMO INC

A user equipment terminal for reporting channel quality information to a base station includes a channel quality information measuring unit configured to measure channel quality information; and a channel quality information generating unit configured to generate, as the channel quality information, a difference value between a first absolute value of the measured channel quality information and a second absolute value of previously measured channel quality information. The present invention also relates to a base station and a channel quality information report method.

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Номер записи: 1
05-01-2012 дата публикации

Limited duty cycle fdd system

Номер: US20120002578A1
Автор: Peter Gaal, Tingfang JI
Принадлежит: Qualcomm Inc

Acknowledgment bundling has been defined for Long Term Evolution (LTE) Time Division Duplex (TDD) systems due to asymmetric DL/UL partitioning. In the case of Frequency Division Duplex (FDD) with a limited uplink (UL) duty cycle, there may be asymmetry associated with a downlink transmission and an associated uplink acknowledgment. For example, there may be a physical downlink shared channel (PDSCH) and a physical uplink control channel (PUCCH) hybrid automatic repeat request acknowledgment (HARQ-ACK) asymmetry. Interference between downlink and uplink transmissions may be a factor contributing to the limited UL duty cycle in an FDD system. For an FDD system having a limited mobile transmission duty cycle, both DL and UL performance may be significantly degraded without proper mitigation techniques. According to certain embodiments of the present disclosure, various HARQ and scheduling techniques may be utilized for minimizing loss due to the limited UL duty cycle.

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Номер записи: 2
05-01-2012 дата публикации

Signal Encoding Method and Device, Method for Encoding Joint Feedback Signal

Номер: US20120002658A1
Автор: Jing Li, Shuju Fan, Xueli Ma, Zongjie Wang
Принадлежит: Huawei Technologies Co Ltd

A signal encoding method and device and a method for encoding a joint feedback signal are provided. The signal encoding method includes the following steps. When two carriers are configured with multiple-input and multiple-output (MIMO), Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) signals of the two carriers are combined into a joint feedback signal. The joint feedback signal is mapped into a codeword according to a predetermined mapping relationship between signals and codewords. Therefore, through the method for combining and encoding feedback signals of two carriers for transmission on a code channel in a dual cell (DC)-MIMO mode, bit error ratio (BER) and detection error cost are decreased, power overhead is saved, and a cubic metric (CM) value of the system is not affected, thereby enhancing the performance of the system.

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Номер записи: 3
05-01-2012 дата публикации

Method and apparatus for encoding feedback signal

Номер: US20120002749A1
Автор: Jing Li, Shuju Fan, Xueli Ma, Zongjie Wang
Принадлежит: Huawei Technologies Co Ltd

A method and apparatus for encoding feedback signal is provided. The method includes: encoding feedback signals of three carriers to output a bit sequence; and transmitting the bit sequence on a High Speed-Dedicated Physical Control Channel (HS-DPCCH). The encoding the feedback signals of the three carriers may specifically include: mapping the feedback signals of the three carriers into a codeword, in which the codeword can be selected from a codebook, and codewords in the codebook satisfy a particular code distance relationship. The method for jointly encoding feedback signals of three carriers in a Ternary Cell (TC) mode is provided. Feedback signals are transmitted over a single code channel. Therefore, power overhead is reduced, and system performance is improved.

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Номер записи: 4
12-01-2012 дата публикации

Method of transmitting counting response message indicating service area at user equipment in wireless communication system and apparatus thereof

Номер: US20120009947A1
Автор: SeungJune Yi, Sungduck Chun, Sunghoon Jung, Sungjun PARK, Youngdae Lee
Принадлежит: LG ELECTRONICS INC

A method for a user equipment to transmit a message in a wireless communication system is disclosed. The present invention includes the steps of receiving a first message containing an information on at least one service from a network and transmitting a second message indicating a specific area and a specific service to the network in response to the first message, if wishing to receive the specific service of the at least one service or being interested to receive the specific service of the at least one service. Preferably, the present invention further includes the step of receiving system information for providing information on at least one area.

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Номер записи: 5
26-01-2012 дата публикации

Communication method and node used in wireless communication network

Номер: US20120020312A1
Автор: Chao Lv, Cheng Li, HAO WANG, Jun Tian
Принадлежит: Fujitsu Ltd

A wireless communication network includes a plurality of peer nodes, the plurality of nodes communicating with each other through a control channel and a plurality of data channels, the communication method including: a source node in the plurality of nodes reserves a data channel used for transmitting data to a destination node in the plurality of nodes through the control channel; the source node and the destination node switch to the reserved data channel; the source node transmits the data to the destination node through the reserved data channel; and after the data transmission between the source node and the destination node is completed, the destination node sends a data transmitting success acknowledgement signal to the source node through the reserved data channel, and then both of the destination node and the source node switch to the control channel from the reserved data channel for operation.

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Номер записи: 6
02-02-2012 дата публикации

Method and apparatus for sending feedback for a downlink shared service and estimating a number of wireless transmit/receive units

Номер: US20120026913A1
Автор: Alexander Reznik, Christopher R. Cave, Eldad M. Zeira, Paul Marinier
Принадлежит: InterDigital Patent Holdings Inc

A method and an apparatus for sending a signal on a contentious feedback channel for a downlink shared service and for estimating a number of wireless transmit/receive units (WTRUs) are disclosed. When a transmission criterion associated with a physical random access feedback channel (P-RAFCH) is satisfied, a physical resource is randomly selected among a plurality of physical resources assigned for the P-RAFCH and a pre-configured signal is sent using the selected physical resource. A Node-B receives the pre-configured signal from a plurality of WTRUs and calculates a number of the WTRUs based on a number of used physical resources. The transmission criterion is at least one of successful reception of a data packet on a downlink physical channel, successful reception of a data block on a data service, reception of a signaling command, occurrence of a measurement event, and failure to receive a transmission after a specified number of times.

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Номер записи: 7
02-02-2012 дата публикации

Integrated circuit for controlling a process

Номер: US20120026969A1
Автор: Akihiko Nishio, Alexander Golitschek Edler Von Elbwart, Masaru Fukuoka, Seigo Nakao
Принадлежит: Panasonic Corp

Provided is a radio communication base station device which can obtain a maximum frequency diversity effect of a downstream line control channel. The device includes: an RB allocation unit ( 101 ) which allocates upstream line resource blocks continuous on the frequency axis for respective radio communication mobile stations by the frequency scheduling and generates allocation information indicating which upstream line resource block has been allocated to which radio communication mobile station device; and an arrangement unit ( 109 ) which arranges a response signal to the radio communication mobile station device in the downstream line control channels distributed/arranged on the frequency axis while being correlated to the continuous upstream line resource blocks according to the allocation information.

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Номер записи: 8
02-02-2012 дата публикации

Method and Apparatus for Grant Loss Detection and Related Processing in a Wireless Communication Network

Номер: US20120026985A1
Автор: Hong Ren, Patrick Lie Chin Cheong, Xiao-Dong Li, Xixian Chen
Принадлежит: Telefonaktiebolaget LM Ericsson AB

The present invention provides a method and apparatus for improving wireless communication network performance and efficiency, based on detecting the occurrence of grant loss in relation to the transmission of scheduling grants to mobile terminals over a downlink control channel. Grant loss detection is based on detecting erasure events corresponding to the transmitted scheduling grants, and the incidence of grant loss with respect to a given mobile terminal can be tracked and used to compensate the control value(s) used for link adaptation of the downlink control channel, with respect to that terminal. Additionally, or alternatively, when a given grant is determined to be lost, a new grant is sent and the HARQ redundancy version is reset for the newly scheduled transmission.

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Номер записи: 9
02-02-2012 дата публикации

System and method for joint voice and data transmission

Номер: US20120027006A1
Автор: Ali Haldun Taner, Ayman Ahmed Abdel-Samad, Christopher Harris Snow, Dinesh Kumar Arora, Nazih Almalki
Принадлежит: Research in Motion Ltd

A method for multiplexing voice and data communication using a communications network is presented. In the method, at least one voice bit from a voice bit stream is retrieved, and at least one data bit from at least one data bit stream is retrieved. When the voice bit stream is not in a discontinuous transmission (DTX) period, the at least one voice bit and the at least one data bit are used to generate a modulated symbol. The method includes transmitting the modulated symbol using the communications network.

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Номер записи: 10
02-02-2012 дата публикации

Shared soft metric buffer for carrier aggregation receivers

Номер: US20120028592A1
Автор: Daniel Yellin, Kobby Pick, Yona Perets
Принадлежит: Marvell International Ltd, MARVELL WORLD TRADE LTD

A method in a receiver includes receiving from a transmitter an aggregated-spectrum signal including at least first and second component carriers in respective spectral bands. Information related to processing one or more of the component carriers is buffered in at least one shared buffer, such that storage locations in the shared buffer are selectably assignable for storing at least first information related to the processing of the first component carrier and second information related to the processing of the second component carrier. The one or more of the component carriers are processed in the receiver using the information buffered in the shared buffer.

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Номер записи: 11
09-02-2012 дата публикации

Electro-optic device and stereoscopic vision display apparatus

Номер: US20120033057A1
Автор: Hirosada Horiguchi
Принадлежит: Seiko Epson Corp

An electro-optic device includes: an electro-optic panel displaying a display image with illumination light emitted from an illumination device; a display control circuit controlling the electro-optic panel to display a right-eye image during a right display period and display a left-eye image during a left display period; a glasses control circuit controlling a right-eye shutter of stereoscopic vision glasses so as to maintain an open state during the right display period, controlling a left-eye shutter of stereoscopic vision glasses so as to maintain an open state during the left display period, and controlling both the right-eye shutter and the left-eye shutter so as to maintain a close state during a blocking period; and an illumination control circuit controlling the illumination device to vary an intensity of the illumination light in a pulsed shape during the blocking period.

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Номер записи: 12
09-02-2012 дата публикации

Method and arrangement for power control

Номер: US20120033578A1
Автор: Nicholas William Anderson
Принадлежит: Individual

A method for setting a power control level ( 600 ) in a wireless communication system. The method includes the steps of obtaining ( 620 ) transmission information from a wireless subscriber unit, and modifying a power control level and/or a communication channel format ( 660 ) in response to said transmission information. Preferably, the transmission information is re-transmission requests from a wireless subscriber unit, which are transmitted frequently. In this manner, rapid adjustment of power control can be attained utilising an optimal selection of the available communication channel format, followed by a fine-tuning power control operation.

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Номер записи: 13
09-02-2012 дата публикации

Method for performing a harq operation in a radio communications system, and method and apparatus for allocation of subframes

Номер: US20120033588A1
Автор: Hyun Soo Ko, Jae Hoon Chung, Kyu Jin Park, Moon II Lee, Seung Hee Han, So Yeon Kim, Yeong Hyeon Kwon
Принадлежит: LG ELECTRONICS INC

There is provided a method for allocating subframes in a radio communications system that performs communication by using a radio frame including a plurality of subframes, the method including: selecting a backhaul downlink subframe in which a base station is to transmit a signal to a relay station; and allocating the backhaul downlink subframe to a substitution subframe which is not limitation subframes, when the selected backhaul downlink subframe corresponds to one of the limitation subframes, wherein the limitation subframes are subframes in which the relay station is to transmit essential information to a relay user equipment. Therefore, it is possible to overcome a limitation that is present in a link between the base station and the relay station, perform an HARQ operation, and improve the efficiency of radio resource allocation.

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Номер записи: 14
09-02-2012 дата публикации

Allocating a control channel for carrier aggregation

Номер: US20120034945A1
Автор: PING Wang
Принадлежит: Intel Corp

Methods for allocating a physical downlink control channel (PDCCH) to reduce a number of PDCCH candidates in a search space for carrier aggregation on a user equipment (UE) are disclosed. The method comprises the step of selecting a control channel element (CCE) aggregation level for a PDCCH allocation for each of a plurality of user equipments (UEs) at an evolved NodeB (eNB). The operation of identifying a transmission mode for each of a plurality of component carriers (CCs) associated with the PDCCH at the eNB follows. The next operation of the method is assigning each CC's downlink control information (DCI) into CCEs in a PDCCH search space in the PDCCH starting at a CCE location based on the CC's transmission mode and the CCE aggregation level for the UE receiving the CC.

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Номер записи: 15
16-02-2012 дата публикации

Method and apparatus for supporting multiple carriers

Номер: US20120039179A1
Автор: Dongyoun Seo, Joon Kui Ahn, Jung Hoon Lee, Mingyu Kim, Suckchel Yang
Принадлежит: LG ELECTRONICS INC

A method and apparatus supporting multiple carriers is provided. A user equipment receives a self-control format indicator (CFI) indicating a size of a control region of a first carrier by using the first carrier. The user equipment receives downlink control information (DCI) comprising a cross-CFI indicating a size of a control region of a second carrier over a first downlink control channel in the control region of the first carrier. The user equipment monitors a second downlink control channel in the control region of the second carrier.

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Номер записи: 16
16-02-2012 дата публикации

Method of channel management for multiple component carrier in mobile communication system

Номер: US20120039200A1
Автор: Jae Heung Kim, Kook Jin Lee, Kyoung Seok Lee
Принадлежит: Electronics and Telecommunications Research Institute ETRI

Disclosed are channel management methods in a multicarrier structure in a mobile communication system. Uplink (UL) and downlink (DL) channel management methods in a carrier aggregation environment are used as the channel management methods. In DL, a base station determines a component carrier (CC) of an unstable radio channel state, stops data retransmission by the CC, and notifies a terminal of retransmission stop. In UL, the base station determines a CC of an unstable radio channel state and instructs the terminal to stop data retransmission by the CC, and the terminal stops the data retransmission and initializes a retransmission buffer. Using the channel management methods in the mobile communication system employing the multicarrier structure, an increase in the number of unnecessary retransmissions is prevented, so that unnecessary retransmission and power consumption of the terminal can be reduced and the waste of radio resources and the degradation of base station performance due to unnecessary retransmission can be prevented.

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Номер записи: 17
16-02-2012 дата публикации

Receiving apparatus

Номер: US20120039206A1
Автор: Akihito Hanaki, Yoshikazu Goto, Yukiko Takagi
Принадлежит: NTT DOCOMO INC

A receiving apparatus ( 10 ) provided with: a management unit ( 13 ) configured to manage a target error rate Pt in a target number of retransmission Nt; a measurement unit ( 14 ) configured to measure the initial transmission rate TPUT init of the data at a transmitting apparatus ( 10 ); and a calculation unit ( 15 ) configured to calculate, with respect to an error rate P(n) in a number of retransmission n, the reception rate TPU of data at a receiving apparatus ( 10 ) by a Equation (2A). TPUT = TPUT init Nt + Pt + 1 . [ Equation   2  A ]

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Номер записи: 18
16-02-2012 дата публикации

Feedback bundling for power-limited devices in wireless communications

Номер: US20120039227A1
Автор: Jelena M. Damnjanovic, Juan Montojo, Wanshi Chen
Принадлежит: Qualcomm Inc

Methods, systems, and devices are described for bundling feedback related to downlink transmissions on a plurality of component carriers (CCs). In some examples, a base station configures a multi-carrier mobile device to use different feedback bundling schemes when it determines that the mobile device is power limited. The bundling scheme configured for the mobile device may be based, in part, on one or more transmission modes of the downlink CCs. Bundling schemes may include combinations of bundling techniques and an order in which these techniques are applied. In particular, the bundling techniques may include CC bundling in combination with spatial bundling and/or feedback repetition. For efficiency and performance, a bundling scheme may require application of CC bundling before resorting to use of feedback repetition.

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Номер записи: 19
16-02-2012 дата публикации

Method for transmitting sub-frame designation information to a downlink in a radio communication system

Номер: US20120039232A1
Автор: Jae Hoon Chung, Kyu Jin Park, Min Seok Noh, Seung Hee Han, Yeong Hyeon Kwon
Принадлежит: LG ELECTRONICS INC

A method of transmitting subframe designating information in downlink in a wireless communication system is disclosed. The present invention includes generating the subframe designating information for designating a subframe of a specific type in a radio frame and transmitting the generated subframe designating information to a user equipment, wherein the subframe designating information includes initial location information indicating an initial location of the subframe of the specific type on the radio frame and period information indicating a period for the subframe of the specific type to be repeated.

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Номер записи: 20
16-02-2012 дата публикации

Method for transceiving data with both a mobile station and a relay station in a broadband wireless communication system

Номер: US20120039241A1
Автор: Hanbyul Seo
Принадлежит: LG ELECTRONICS INC

A method for transceiving data with both a mobile station and a relay station in a mobile communication system are disclosed. In a present invention, the base station transmits an ACK signal regardless of whether a result of the decoding is successful or unsuccessful to the terminal for using a uplink packet data transmitted from the relay station. And, the relay station operates two operation modes. Procedures of downlink/uplink packet data transmission according to the operation mode are disclosed.

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Номер записи: 21
16-02-2012 дата публикации

Ack/nack transmission for multi-carrier operation

Номер: US20120039279A1
Автор: Aleksandar Damnjanovic, Jelena M. Damnjanovic, Juan Montojo, Peter Gaal, Tao Luo, Wanshi Chen, Xiaoxia Zhang, Xiliang Luo
Принадлежит: Qualcomm Inc

Techniques for acknowledging data transmissions in a multi-carrier wireless communication network are disclosed. In some aspects, a user equipment (UE) receives a data transmission on at least one component carrier (CC) in a plurality of configured CCs. The UE determines acknowledgement/negative acknowledgement (ACK/NACK) information for the data transmission and determines an uplink channel for sending the ACK/NACK information. When the ACK/NACK information is sent on a PUCCH, the UE may perform power control based on which CCs in the plurality of configured CCs data is received. When the ACK/NACK information is sent on a PUSCH, the UE may determine a number of resource elements based on its CC configuration.

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Номер записи: 22
16-02-2012 дата публикации

Ack/nack transmission for multi-carrier operation with downlink assignment index

Номер: US20120039280A1
Автор: Aleksandar Damnjanovic, Jelena M. Damnjanovic, Juan Montojo, Peter Gaal, Tao Luo, Wanshi Chen, Xiaoxia Zhang, Xiliang Luo
Принадлежит: Qualcomm Inc

Techniques for acknowledging data transmissions in a multi-carrier wireless communication network are disclosed. In one aspect, a UE determines a number of acknowledgement/negative acknowledgement (ACK/NACK) bits for a data transmission on one more component carriers (CCs) based on information obtained from a grant. The grant may be a downlink grant or an uplink grant, and the information obtained may include a number of CCs scheduled for data transmission and/or identifiers of the scheduled CCs. The UE may determine the number of ACK/NACK bits for acknowledging the data transmission based on the number of scheduled CCs and the identifier of each scheduled CC.

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Номер записи: 23
16-02-2012 дата публикации

Variable rate coding for enabling high performance communication

Номер: US20120039328A1
Автор: Dennis D. Ferguson, James A. Proctor, Jr.
Принадлежит: IPR Licensing Inc

A protocol for optimizing the use of coded transmissions such as over wireless links. In this technique, interframes are split into segments selected to be an optimum size according to transmission characteristics of the radio channel. The inverse process is applied at the receiver. Using this scheme, segments containing erroneous data may be resent.

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Номер записи: 24
23-02-2012 дата публикации

H-arq timing and backhaul subframe configuration for tdd relay in lte-a

Номер: US20120044841A1
Автор: Juan Montojo, Wanshi Chen
Принадлежит: Qualcomm Inc

A method for wireless communication is provided, at a half-duplex node operating in TDD mode and may be used with an eNB in an LTE system. The method comprises receiving a configuration of a first set of subframes for a first link communication containing at least one downlink subframe and at least one uplink subframe. A second set of subframes for a second link communication is then determined. This second set includes at least one backward compatible downlink hybrid automatic repeat request process and at least one backward compatible uplink hybrid automatic repeat request process utilizing a second set of subframes. Communication begins with a first set of nodes using the first link and the first set of subframes. A second set of nodes using the second link and the second set of subframes is also used for communication. Communication to a legacy node is also supported.

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Номер записи: 25
23-02-2012 дата публикации

Method And Apparatus For Performing Uplink Transmissions In A Wireless Communications System

Номер: US20120044897A1
Автор: Mats SÅGFORS, Stefan Wager
Принадлежит: Individual

The present invention relates to methods and apparatus for performing uplink transmission in a wireless communications system. A mobile terminal is provided with a set of available transport formats by receiving at least one UL grant comprising a transport format indication pointing to one or more transport formats. The mobile terminal then selects a suitable transport format from the set, for example in dependence on propagation channel conditions, for transmission of a scheduled transreceive at least one UL mission.

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Номер записи: 26
23-02-2012 дата публикации

Method and apparatus for transmitting a frame in a wireless ran system

Номер: US20120044925A1
Автор: Bong Hoe Kim, Byeong Woo Kang, Dae Won Lee, Yong Ho Seok, Yu Jin Noh
Принадлежит: LG ELECTRONICS INC

There is provided a method and apparatus for transmitting a frame which is performed by a transmission STA in a WLAN system. The method of transmitting a frame according to the present invention includes generating an MAC Protocol Data Unit (MPDU) to be transmitted to a target station, generating a PLCP Protocol Data Unit (PPDU) by attaching a Physical Layer Convergence Procedure (PLCP) header to the MPDU, and transmitting the PPDU to the target station. The PLCP header comprises a partial Association ID (AID) of the target station.

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Номер записи: 27
01-03-2012 дата публикации

Adaptive acknowledgment mechanism for network communication

Номер: US20120054534A1
Автор: Craig M. Mazzagatte, Yeongtau Louis Tsao
Принадлежит: Canon Inc

The present disclosure is directed to network communication between a sender and a receiver. Network communication is established between the sender and the receiver using a first acknowledgment mechanism for signifying receipt of data by the receiver. The first acknowledgment mechanism is selected from one of a receiver positive acknowledgment mechanism (RPA) and a receiver negative acknowledgment mechanism (RNA). Communication information is monitored, wherein the communication information indicates at least a current state of performance for network communication. Based on the communication information, a message is exchanged between the sender and the receiver to negotiate a switchover to a second acknowledgment mechanism for signifying receipt of data by the receiver. The second acknowledgment mechanism is selected from the other of the receiver positive acknowledgment mechanism (RPA) and the receiver negative acknowledgment mechanism (RNA). Network communication is then established between the sender and the receiver using the second acknowledgment mechanism.

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Номер записи: 28
08-03-2012 дата публикации

Method for implementing relay station downlink cooperative retransmission and a relay station

Номер: US20120057521A1
Автор: Feng Bi, FENG LIANG, Jin Yang, Ming Yuan, Shuanshuan Wu
Принадлежит: ZTE Corp

A method for implementing relay station downlink retransmission and a relay station are disclosed by the present invention. According to the situation of the least available radio resource number for retransmission data on a retransmission sub-frame, the relay station of the present invention performs corresponding physical layer processing in advance for the data to be retransmitted until the OFDM signal is generated, and retransmits the OFDM signal on the retransmission sub-frame. By the method of the present invention, the problem is resolved efficiently that the relay station cooperative communication cannot be performed normally due to the change of the radio resource number during downlink data retransmission, so that the normal implementation of the relay station downlink cooperative communication is ensured; furthermore, the method of the present invention does not induce any extra overhead and time delay, needs no signaling control, can be easily implemented, reduces the system complexity, ensures the flexibility of sub-frame configuration, thereby improving service quality and resource utilization rate.

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Номер записи: 29
08-03-2012 дата публикации

Method and device for reestablishment at packet data convergence protocol layer

Номер: US20120057546A1
Автор: BO Wang, Delong Tang, Miao Li, Xiaoan Hou
Принадлежит: ZTE Corp

The present invention discloses a method and device for reestablishment at packet data convergence protocol (PDCP) layer. On the receiving side of the PDCP layer, the method comprises: clearing resident control messages ( 501 ); processing resident service messages, and clearing feedback information generated during processing ( 502 ); and resetting a decompressor, and updating configuration of a decryption module ( 503 ). On the transmitting side of the PDCP layer, the method comprises: resetting a compressor, and updating configuration of an encryption module; clearing the resident control messages; and reprocessing the resident service messages. With the differentiated processing for the resident messages at the PDCP layer during the reestablishment, the present invention can avoid the abnormal mode switching of the compressor, and accelerate the user plane restoration after the reestablishment. The present invention can further avoid the transmission of invalid feedback, thus improving the utilization of air interface resources; meanwhile, by avoiding the influence of the invalid status report on uplink and downlink transmission policies, the present invention can reduce retransmission of the service messages, thus improving the utilization of air interface resources.

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Номер записи: 30
08-03-2012 дата публикации

Method for multiplexing data and control information

Номер: US20120057551A1
Автор: Jae Hoon Chung, Ki Hwan Kim, Moon Il Lee
Принадлежит: LG ELECTRONICS INC

A method for multiplexing a data information stream, including a systematic symbol and a non-systematic symbol, and a control information stream of at least three types in a wireless mobile communication system is disclosed. The method includes mapping the data information stream to a resource area so that the systematic symbol is not mapped to a specific resource area to which the control information stream is mapped, and mapping the control information stream to the specific resource area.

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Номер записи: 31
15-03-2012 дата публикации

CFI Signaling for Heterogeneous Networks with Multiple Component Carriers in LTE-Advanced

Номер: US20120063321A1
Автор: Anthony Ekpenyong, Runhua Chen, Vikram Chandrasekhar
Принадлежит: Texas Instruments Inc

This invention mitigates interference in wireless telephony in heterogeneous networks having a macro base station and a low power base station. This invention attempts to avoid cross carrier scheduling on an anchor carrier and a non-anchor carrier. If cross carrier scheduling is unavoidable, then this invention attempts: (1) semi-statically signalling a CFI value on a cross-scheduled component carrier; (2) semi-statically signalling a channel quality information (CSI) value on a cross-scheduled component carrier setting a Physical Hybrid ARQ Indicator CHannel (PHICH) value to be maximum; or (3) semi-statically signalling a channel quality information (CSI) value on a cross-scheduled component carrier using Physical Control Format Indicator CHannel (PCFICH) power boosting on cross-scheduled component carriers (CC).

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Номер записи: 32
15-03-2012 дата публикации

Configuring component carriers in carrier aggregation

Номер: US20120063357A1
Автор: Kamran Etemad
Принадлежит: Intel Corp

Technology for configuring component carriers in carrier aggregation is disclosed. One method comprises scanning for an enhanced Node B (eNode B) with a user equipment (UE). An eNode B is selected by the UE. The UE is attached to an available carrier provided by the eNode B. The available carrier is designated as a Primary Component Carrier (PCC). The PCC is configured as a component carrier pair comprising a downlink primary component carrier (DL PCC) and an uplink primary component carrier (UL PCC). Mobility management and security input information is received at the UE from the eNode B via the DL PCC and the UL PCC.

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Номер записи: 33
15-03-2012 дата публикации

Short-range wireless networks

Номер: US20120063389A1
Автор: Saied Abedi
Принадлежит: Fujitsu Ltd

A wireless network of devices comprising a relay start device, an intermediate device and a relay end device, information being communicated wirelessly in use between the relay start device and the relay end device via the intermediate device, wherein: the intermediate device comprises control means and transmission means, the control means being operable to cause the intermediate device transmission means to transmit an indication of connection stability as a function of at least one connection stability parameter of the intermediate device.

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Номер записи: 34
15-03-2012 дата публикации

Method and apparatus for transmitting data, and communication system

Номер: US20120063526A1
Автор: Matthew Leung, Ruijie XIAO
Принадлежит: Huawei Technologies Co Ltd

The present invention discloses a method for transmitting data. In the embodiments of the present invention, whether to send blocking information used to block low priority data sent by an upper layer is determined through monitoring a delay of data during transmission, so as to prevent data overflow in a retransmission buffer of the sending end, thus achieving higher INP protection for the low priority data. Meanwhile, only the low priority data is blocked at this time, therefore, a sending end may further continue receiving high priority data, and mark the high priority data with a flag indicating retransmission is not needed when encapsulating the high priority data, so that a receiving end does not apply for retransmission of the high priority data when receiving the high priority data, thus ensuring the short delay requirement of the high priority data.

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Номер записи: 35
22-03-2012 дата публикации

Systems and methods for high rate ofdm communications using first and second cyclic prefix lengths

Номер: US20120069877A1
Автор: Colin Lanzl, Dongjun Lee, Marcos C. Tzannes, Todor Cooklev
Принадлежит: Aware Inc

Messages transmitted between a receiver and a transmitter are used to maximize a communication data rate. In particular, a multicarrier modulation system uses messages that are sent from the receiver to the transmitter to exchange one or more sets of optimized communication parameters. The transmitter then stores these communication parameters and when transmitting to that particular receiver, the transmitter utilizes the stored parameters in an effort to maximize the data rate to that receiver. Likewise, when the receiver receives packets from that particular transmitter, the receiver can utilize the stored communication parameters for reception.

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Номер записи: 36
29-03-2012 дата публикации

Communication method using multi-radio and communication apparatus

Номер: US20120076020A1
Автор: Tae Rim PARK, Tae Seok Kim
Принадлежит: SAMSUNG ELECTRONICS CO LTD

Provided is a communication method and apparatus using a multi-radio. The communication method includes establishing a link via at least one node included in a group that uses a low data-rate radio (LDR); transmitting a data frame to the at least one node included in the group; and receiving, using a multi-radio based on an availability of the LDR, an acknowledgement (ACK) with respect to the transmitted data frame.

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Номер записи: 37
29-03-2012 дата публикации

Channel Quality Indicator Transmission Timing with Discontinuous Reception

Номер: US20120076060A1
Автор: James Earl Womack, YI Yu, Zhijun Cai
Принадлежит: Individual

A user equipment (UE) is disclosed. The UE includes a processor configured to begin channel quality indicator (CQI) transmissions using an assigned periodic CQI reporting resource before the start of the on-duration of a discontinuous reception (DRX) operation mode.

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Номер записи: 38
29-03-2012 дата публикации

Efficient Signaling of Discontinuous Transmission

Номер: US20120076077A1
Автор: Amin Mobasher, Andrew Mark Earnshaw, Masoud Ebrahimi Tazeh Mahalleh, Michael Eoin Buckley, Youn Hyoung Heo
Принадлежит: Individual

Methods and devices are disclosed for efficient signaling of discontinuous transmission in a wireless communication system. In various aspects of the disclosure, a user equipment device monitors transmissions on a plurality of physical downlink control channels (PDCCHs) and, in response to said transmissions, generates an acknowledge/negative acknowledge (ACK/NACK) signal comprising a plurality of bits, wherein the plurality of bits includes a discontinuous transmission (DTX) indicator bit. In some embodiments, the indicator bit corresponds to an even or odd number of PDCCHs successfully decoded. In other embodiments, the indicator bit corresponds to an odd or even number of component carriers comprising “TRUE” NACKs.

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Номер записи: 39
29-03-2012 дата публикации

Techniques utilizing arq feedback for efficient transmitter buffer usage

Номер: US20120079336A1
Автор: Aran Bergman
Принадлежит: Intel Corp

An embodiment of the present invention provides an apparatus, comprising a base station with a transceiver operable to communicate with a mobile station (MS) in a wireless network and further adapted to provide ARQ Feedback to said MS enabling an efficient transmitter buffer usage by said transceiver sending its updated feedback any time and using a currently defined feedback IE to indicate which blocks arrived at said transceiver and which did not arrive yet or using a modified feedback IE.

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Номер записи: 40
29-03-2012 дата публикации

User equipment using hybrid automatic repeat request

Номер: US20120079337A1
Автор: Ariela Zeira, Nader Bolourchi, Sephen Terry
Принадлежит: InterDigital Technology Corp

A user equipment comprises a transmitter and an adaptive modulation and coding controller. The transmitter is configured to transmit data over an air interface in a single transmission time interval with a first specified modulation and coding scheme, where the single transmission time interval has a plurality of transport block sets. In response to receiving a repeat request for retransmission of at least one particular transport block set, the transmitter retransmits the at least one of the particular transport block sets. The adaptive modulation and coding controller is configured to change the specified modulation and coding scheme to a second specified modulation and coding scheme, enabling a combining of a particular transport block set transmitted at the first specified modulation and coding scheme with a retransmitted version of the particular transport block set transmitted at the second specified modulation and coding scheme.

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Номер записи: 41
05-04-2012 дата публикации

Method and apparatus to facilitate mobile relay and group mobility

Номер: US20120082084A1
Автор: Muthaiah Venkatachalam, Ravikumar Balakrishnan, Xiangying Yang
Принадлежит: Intel Corp

A method and system to facilitate mobile relay and group mobility in a wireless network. In one embodiment of the invention, the wireless network facilitates a mobile relay station that has logic to switch communication with a first base station to a second base station while maintaining logical communication with its associated mobile station(s). By doing so, the handover of the mobile relay station from a source base station to a target base station is transparent to the mobile station(s) that are connected with the mobile relay station in one embodiment of the invention.

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Номер записи: 42
05-04-2012 дата публикации

Signal extender system and signal extender thereof

Номер: US20120082249A1
Автор: Chao-Hsuan Hsueh
Принадлежит: Aten International Co Ltd

A signal extender system including a first electronic apparatus, a second electronic apparatus, and a signal extender. The signal extender system includes a transmission module, a receiving module, and pairs of differential transmission lines. The receiving module includes a timing memory unit. The transmission module receives a digital image differential signal including differential data signals, a differential timing signal, and a two-way differential signal. A first pair of differential transmission lines, a second pair of differential transmission lines, and a third pair of differential transmission lines of the pairs of differential transmission lines transmit the differential data signals respectively. A fourth pair of differential transmission lines alternately transmits the two-way differential signal and a part of differential timing signal. The timing memory unit memories and continually replicates the part of differential timing signal to recover the differential timing signal and output it to the second electronic apparatus.

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Номер записи: 43
05-04-2012 дата публикации

Orthogonal Resource Selection Transmit Diversity

Номер: US20120082263A1
Автор: Masoud Ebrahimi Tazeh Mahalleh, Robert Mark Harrison, Yongkang Jia, Youn Hyoung Heo
Принадлежит: Research in Motion Ltd

Methods are disclosed for transmitting a plurality of information bits using resource selection on multiple antennas. In one or more embodiments, the methods include: selecting a first and a second orthogonal resource from an allocation of more than two orthogonal resources according to the state of the plurality of information bits; transmitting a first symbol in a first symbol instant on a first antenna using the first orthogonal resource; and transmitting a second symbol in the first symbol instant on a second antenna using the second orthogonal resource. In some embodiments, the first and second orthogonal resources are different and the first symbol is either a reference symbol or a modulation symbol.

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Номер записи: 44
12-04-2012 дата публикации

Wireless binaural hearing system

Номер: US20120087505A1
Автор: Jacob Midtgaard, Petar Popovski, Peter S. K. HANSEN
Принадлежит: Oticon AS

A wireless binaural hearing system comprises a left-ear hearing device, a right-ear hearing device and auxiliary devices. The devices communicate via radio signals. Each device comprises a radio transmitter transmitting messages, each hearing device comprises a radio receiver receiving messages, the auxiliary device is adapted to transmit application messages, and the hearing devices are adapted to receive application messages. The quality of wireless communication varies when the user moves his head, which may lead to temporal gaps in communication. Such gaps may cause annoying pauses and/or delays in audio signals presented to the user, and the hearing devices may become temporarily unsynchronised. To avoid such gaps and improve reliability of the communication, without increasing the radio signal power, a first hearing device relays received application messages to a second hearing device in dependence on network messages received from the second hearing device indicating whether application messages were correctly received.

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Номер записи: 45
12-04-2012 дата публикации

Packet combining device and method for communication system using hybrid automatic repeat request

Номер: US20120089882A1
Автор: Bon Tae Koo, Hyuk Kim, In San Jeon, Seong Min Kim
Принадлежит: Electronics and Telecommunications Research Institute ETRI

A packet combining device for a communication system using hybrid automatic repeat request (HARQ) includes: a HARQ buffer; a combiner configured to combine data which is previously received and stored in the HARQ buffer with newly-received data; and a channel decoder configured to attempt channel decoding by using the combined received data provided from the combiner and provide one or more of log likelihood ratios (LLRs) computed for a systematic bit and a parity bit of the combined received data to the combiner such that the one or more LLRs are combined with the data used for channel decoding.

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Номер записи: 46
19-04-2012 дата публикации

Fast Retransmission Method and Device in Radio Link Control Layer Acknowledged Mode

Номер: US20120093022A1
Автор: Bei Wang
Принадлежит: ZTE Corp

The present invention discloses a method and apparatus for fast retransmission in radio link control layer acknowledged mode, said method comprises: a sending end analyzing a status report to obtain unacknowledged (NACK) information; the sending end determining data that need to be retransmitted according to a judging condition of a last group of NACK information, and placing the data into a retransmission queue and sending the data to a receiving end after packeting; said apparatus comprises: a status report receiving unit for receiving status reports from an opposite end continuously; a status report analyzing unit for analyzing a status report to obtain NACK information; a status report judging and determining unit for determining data that need to be retransmitted according to a judging condition of a last group of NACK information; and a data retransmitting unit for sending retransmission data to a receiving end after packeting in a retransmission queue.

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Номер записи: 47
19-04-2012 дата публикации

UL ACK/NACK For Inter-Radio Access Technology Carrier Aggregation

Номер: US20120093073A1
Автор: Esa Tapani Tiirola, Juho Pirskanen, Timo Erkki Lunttila
Принадлежит: Nokia Oyj

A method is disclosed that includes, for each of a multiplicity of subframes to be communicated using a first radio access technology, determining a first number of bits used for first feedback information corresponding to a first communication effected using the first radio access technology and a second number of bits used for second feedback information corresponding to a second communication effected using a second radio access technology. The method further includes, using only the first radio access technology, communicating the multiplicity of subframes, wherein for each of the multiplicity of subframes, included in the subframe are the first feedback information using the determined first number of bits and the second feedback information using the determined second number of bits. Apparatus, program products, and computer programs are also disclosed.

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Номер записи: 48
19-04-2012 дата публикации

Methods and Devices for Transmitting a Control Message

Номер: US20120093118A1
Автор: Gunnar Peters
Принадлежит: Telefonaktiebolaget LM Ericsson AB

Embodiments disclose a method in a first communication device in a radio telecommunications network for transmitting a control message comprising communication configuration information to a second communication device within the radio telecommunications network. The first communication device determines the communication configuration information of the control message and maps the control message to a plurality of control channel element groups for the second communication device. The first communication device then transmits the control message to the second communication device over the plurality of control channel element groups within a single transmission time interval on a radio control channel.

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Номер записи: 49
26-04-2012 дата публикации

Universal file delivery methods for providing unequal error protection and bundled file delivery services

Номер: US20120099593A1
Автор: Michael G. Luby
Принадлежит: Qualcomm Inc

Methods and apparatus for delivering data objects from an electronic device or system over a packet-switched network are provided, wherein source data is represented by encoded symbols in packets such that the source data is recoverable, at least approximately, from the encoded symbols, by arranging the source data into a plurality of source symbols, generating a plurality of encoding packets, wherein an encoding packet comprises a universal object symbol identifier (“UOSI”) and a plurality of encoding symbols representing source data for a packet structure identified by the UOSI, and sending the plurality of encoding packets to the packet-switched network.

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Номер записи: 50
26-04-2012 дата публикации

Transmission apparatus, transmission method, and communication system

Номер: US20120099606A1
Автор: Katsuyuki Sato
Принадлежит: Sony Corp

A transmission apparatus including: a communication unit that performs communication with a receiving apparatus; a transmission processing unit that transmits transmission data to the receiving apparatus via the communication unit; and a reproduction quality adjustment unit that adjusts a reproduction quality of the transmission data based on a retransmission request frequency that indicates a number of times that a retransmission request with respect to the transmission data is received from the receiving apparatus via the communication unit over a predetermined period of time.

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Номер записи: 51
03-05-2012 дата публикации

Method and apparatus for transmitting control information in radio communication system

Номер: US20120106478A1
Автор: Hyunwoo Lee, Jinmin Kim, SEUNGHEE HAN
Принадлежит: LG ELECTRONICS INC

A method for transmitting control information using PUCCH format 3 in a radio communication system includes detecting one or more Physical Downlink Control Channels (PDCCHs), receiving one or more Physical Downlink Shared Channel (PDSCH) signals corresponding to the one or more PDCCHs, and determining a PUCCH resource value n PUCCH (3,p) corresponding to a value of a transmit power control (TPC) field of a PDCCH for a PDSCH signal on a secondary cell (SCell) among a plurality of PUCCH resource values configured by a higher layer for the PUCCH format 3. If a single antenna port transmission mode is configured, the PUCCH resource value n PUCCH (3,p) indicated by the TPC field is mapped to one PUCCH resource for a single antenna port, and, if a multi-antenna port transmission mode is configured, the PUCCH resource value n PUCCH (3,p) indicated by the TPC field is mapped to a plurality of PUCCH resources for multiple antenna ports.

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Номер записи: 52
03-05-2012 дата публикации

Time-slot based multiple ack/nack transmission

Номер: US20120106491A1
Автор: Dong Youn Seo, Joon Kui Ahn, Min Gyu Kim, Suck Chel Yang
Принадлежит: LG ELECTRONICS INC

A method of transmitting ACK/NACK (Acknowledgement/Negative-ACK) signal by a user equipment in a wireless communication system comprises receiving a plurality of data unit from a base station; reserving a plurality of physical uplink control channel (PUCCH) resources corresponding to the plurality of data units within a subframe having a plurality of slots; and transmitting one or more ACK/NACK signals for the plurality of data units to the base station by using at least part of the plurality of PUCCH resources reserved within the subframe, wherein the PUCCH resources through which the one or more ACK/NACK signals are transmitted are selected independently per slot.

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Номер записи: 53
03-05-2012 дата публикации

Error Correction Scheme for Facsimile Over a Packet Switched Network

Номер: US20120110403A1
Автор: Chengzhou Li, Herbert B. Cohen, Ximing Chen
Принадлежит: LSI Corp

A method for correcting at least one error in a facsimile transmission over a packet switched communications network includes the steps of: detecting, by a first gateway coupled to the communications network, at least one missing data packet in a sequence of data packets transmitted from a second gateway coupled to the communications network during the facsimile transmission; transmitting, from the first gateway, a request for retransmission of the missing data packet to the second gateway; determining whether the missing data packet is available for retransmission; and, when the missing data packet is available, retransmitting the missing data packet to the first gateway.

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Номер записи: 54
10-05-2012 дата публикации

Dynamic simultaneous pucch and pusch switching for lte-a

Номер: US20120113827A1
Автор: Shohei Yamada, Zhanping Yin
Принадлежит: Sharp Laboratories of America Inc

A method for reporting uplink control information (UCI) on a user equipment (UE) is described. A set of physical downlink control channel (PDCCH) candidates on an activated serving cell are monitored. A PDCCH of a serving cell intended for the UE in a subframe is detected. A physical downlink shared channel (PDSCH) corresponding to the PDCCH in the same subframe is decoded. Transmission of the UCI for a subframe corresponding to the subframe in which the PDCCH was decoded is adjusted.

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Номер записи: 55
10-05-2012 дата публикации

Transmission of control information on uplink channels

Номер: US20120113832A1
Автор: Jelena M. Damnjanovic, Juan Montojo
Принадлежит: Qualcomm Inc

Techniques for sending control information on uplink channels are disclosed. In one design, a user equipment (UE) may determine its current configuration for concurrent transmission of a control channel and a shared channel. The UE may select one or more channels, from among the control channel and the shared channel, to send control information of at least one type in a same subframe. The UE may select the one or more channels based on the types of control information to send, the current configuration for concurrent transmission of the control channel and the shared channel, whether the UE is scheduled for data transmission on the shared channel in the subframe, whether the UE has sufficient transmit power to transmit both the control channel and the shared channel, etc. The UE may send the control information on the one or more selected channels in the subframe.

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Номер записи: 56
10-05-2012 дата публикации

Uplink receiving method for a base station and uplink transmitting method for a terminal using a shared wireless resource

Номер: US20120113942A1
Автор: Jae Heung Kim
Принадлежит: Electronics and Telecommunications Research Institute ETRI

The invention relates to an uplink receiving method for a base station, comprising: a step of transmitting scheduling information for a shared wireless resource to object terminals to which the shared wireless resource is to be allocated, via a downlink control channel using a scheduling identifier; a step of receiving data from at least one terminal from among the object terminals, via the shared wireless resource allocated by the scheduling information; and a step of transmitting data receipt feedback information for at least one terminal which has received data via the shared wireless resource. An uplink transmitting method for a terminal comprises: a step of receiving scheduling information for a shared wireless resource from a base station via a downlink control channel; a step of transmitting data via the shared wireless resource allocated by the scheduling information; and a step of receiving, from the base station, feedback information which indicates whether or not the data transmitted via the shared wireless resource has been successfully received. Consequently, uplink transmission procedures between the terminal and the base station are integrated and simplified to reduce uplink transmission latency.

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Номер записи: 57
10-05-2012 дата публикации

Method in which a receiver transmits control information in a wireless communication system

Номер: US20120113948A1
Автор: Jae Hoon Chung, Seung Hee Han, So Yeon Kim, Sung Ho Moon, Yeong Hyeon Kwon
Принадлежит: LG ELECTRONICS INC

The present invention relates to a method in which a receiver transmits control information in a wireless communication system. The method comprises a step of receiving a plurality of data units from a transmitter, a step of determining acknowledgement/negative-acknowledgement (ACK/NACK) states for each of the data units; and a step of transmitting, to the transmitter, the ACK/NACK states in multiple ACK/NACK states or in a single ACK/NACK state in accordance with a predetermined condition.

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Номер записи: 58
10-05-2012 дата публикации

System and method for managing acknowledgement messages in a very large computer network

Номер: US20120113986A1
Автор: Jean-Philippe Vasseur, Sandeep Jay Shetty, Shmuel Shaffer
Принадлежит: Cisco Technology Inc

A multicast message may be distributed by receiving, at a first node in a multicast network, a multicast message from a parent node of the first node. The multicast message is transmitted to child nodes of the first node in the multicast network. A population of the child nodes to which the multicast message was transmitted is accessed and acknowledgement messages which reveal child nodes that are among an acknowledging subset of less than all of the child nodes of the first node are received. Child nodes revealed by the received acknowledgement messages are compared with child nodes determined to be among the population of child nodes to which the multicast message is expected to be received. Based on results of the comparison, a compressed non-acknowledging subset is identified and transmitted to the parent node.

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Номер записи: 59
10-05-2012 дата публикации

Packet-level erasure protection coding in aggregated packet transmissions

Номер: US20120117446A1
Автор: Hemanth Sampath, Mohammad Hossein Taghavi Nasrabadi, Rahul Tandra, Sameer Vermani, Santosh P. Abraham, Simone Merlin
Принадлежит: Qualcomm Inc

In a first aspect, an aggregated packet (A-MPDU) includes packets (MPDUs) and EC-Blocks (Error Correction Blocks) containing error correction coding information. A transmitter uses a Fountain coding scheme (for example, Raptor or RaptorQ) to generate the error correction coding information from the MPDUs. If a receiver detects an error in a received MPDU, then the receiver uses the error correction coding information from the EC-Blocks to correct the error. In a second novel aspect, a determination is made as to whether a change in error rate is more likely due to collisions or to a low SNR. If the determination is that the change is due to collisions then the MCS index is adjusted to restore a target error rate, whereas if the determination is that the change is due to a low SNR then the number of EC-Blocks per A-MPDU is adjusted to restore the target error rate.

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Номер записи: 60
17-05-2012 дата публикации

Adjusting Method for Downlink Modulation Coding Mode and Multiple-Input-Multiple-Output Mode and Device

Номер: US20120120840A1
Автор: Guang Liu
Принадлежит: ZTE Corp

An adjustment method for downlink modulation and coding scheme and multiple-input-multiple-output mode (MIMO) and a base station thereof are provided. The method comprises: establishing a corresponding relationship table of data transmission rates and combinations of said downlink scheme and MIMO; determining maximal available modulation and coding scheme according to the downlink carrier-to-interference-and-noise-ratio (CINR) reported by a terminal, switching current downlink scheme to the maximal available scheme when the current downlink scheme is greater than the maximal available scheme; collecting the total number of data packets and the number of valid data packets in the data packets in every report period; and adjusting the current downlink scheme and MIMO according to the maximal available scheme and said table when determining that the current downlink scheme and MIMO are not suitable for the current channel conditions in accordance with the total number of data packets and the number of valid data packets.

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Номер записи: 61
17-05-2012 дата публикации

Method and Device for Downlink Cooperation Retransmission in a Relay Station

Номер: US20120120865A1
Автор: Feng Bi, FENG LIANG, Jin Yang, Ming Yuan, Shuanshuan Wu
Принадлежит: ZTE Corp

The present invention discloses a method and apparatus for relay station downlink cooperative retransmission, wherein said method comprises: a relay station carrying out physical layer processing in advance on data which requires retransmitting according to a case that available wireless resources number for retransmitting data in a retransmission subframe is to be determined, generating corresponding Orthogonal Frequency Division Multiplexing (OFDM) signals, and monitoring a Physical Control Format Indicator Channel (PCFICH) of the retransmission subframe, and according to a monitoring result, selecting an OFDM signal which matches with the determined available wireless resources number from said OFDM signals to carry out retransmission transmitting.

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Номер записи: 62
17-05-2012 дата публикации

Apparatus and Method for Selecting a User From a Group of Users Sharing a Channel

Номер: US20120120894A1
Автор: Hans HÖHNE
Принадлежит: Individual

An apparatus and a method for protecting persistent MAP allocation may be described. The protecting mechanism may use HARQ information or UL data as an implicit MAP ACK.

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Номер записи: 63
24-05-2012 дата публикации

Method for retransmitting data in wireless communication system

Номер: US20120127897A1
Автор: Dong Guk Lim, Han Gyu Cho, Jian Xu, Jin Sam Kwak, Yong Ho Kim, Young Soo Yuk
Принадлежит: LG ELECTRONICS INC

A method for retransmitting data in wireless communication system is disclosed. MS can receive a NACK (Not-Acknowledge) signal from a base station (BS) through a specific downlink subframe of a specific frame in a first superframe, and the MS can retransmits the data using a second uplink subframe in a first frame in a second superframe subsequent to a first superframe. In this case, a index of the second uplink subframe may be 1. The wireless communication system can support the Half-Frequency Division Duplex (H-FDD) scheme. A first uplink subframe in the first frame of the second superframe can be punctured.

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Номер записи: 64
24-05-2012 дата публикации

Method and System for Reducing Connection Set-Up Time

Номер: US20120127943A1
Автор: Brian Troup, Guoqiang Xue, Martin Kendall, Miroslav Budic, Ryan Santa, Vasanta Chivukula, Weigang Li, Xixian Chen
Принадлежит: ERICSSON AB

A method of connection setup in mobile wireless data communications systems is disclosed where the connection setup time is decreased for delay-sensitive communications sessions relative to the normal connection setup time for confidence-dependent communications sessions. This is achieved by performing some of the connection set-up steps for delay-sensitive communications sessions after successfully demodulating a smaller number of indications identifying an access terminal's desired serving resource than would be demodulated in the case of a confidence-dependent communication session prior to performing the same connection set-up steps.

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Номер записи: 65
24-05-2012 дата публикации

Method and apparatus for time efficient retransmission using symbol accumulation

Номер: US20120131406A1
Автор: Edward G. Tiedemann, Jr., Joseph P. Odenwalder, Serge Willenegger, Tao Chen
Принадлежит: Qualcomm Inc

A method for communicating data is provided. In the method, an encoder receives an input bit stream. The encoder generates, based on the input bit stream, a first output bit stream based on at least a first polynomial and a second output bit stream based on at least a second polynomial. The first and second polynomials are each different from each other. The encoder forms a first packet of code symbols, having a first code rate, based on bits from the first output bit stream. A transmitter transmits the first packet. A receiver receives a first negative acknowledgment indicating unsuccessful decoding of the first packet after said transmitting of the first packet. The encoder punctures bits from the second output bit stream and forms a second packet of code symbols having a second code rate. The second code rate is different from the first code rate. The transmitter transmits the second packet in response to the receiver receiving the first negative acknowledgment.

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Номер записи: 66
24-05-2012 дата публикации

Computer readable storage medium storing error correction program and communication apparatus

Номер: US20120131408A1
Автор: Atsuko Tada, Ryuta Tanaka
Принадлежит: Fujitsu Ltd

A computer-readable medium storing a program causing a computer to execute a process includes, acquiring a plurality of data units that belong to a first block in a certain hierarchy among hierarchical blocks defined by a plurality of hierarchies; generating error correction information corresponding to the first block that equals to an exclusive-OR of the plurality of data units; generating, in each individual hierarchy of one or more individual hierarchies that are continuous from and are lower than the certain hierarchy, error correction information corresponding to each individual block that equals to the exclusive-OR of all data units that belong to the individual block among the plurality of data units, where the individual block is one or more individual blocks other than one specific block in two or more blocks in the individual hierarchy that are included in the same block in a hierarchy.

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Номер записи: 67
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: 68
07-06-2012 дата публикации

Receiving apparatus, receiving method and program thereof

Номер: US20120142303A1
Автор: Masahiro Komatsu
Принадлежит: NEC Corp

[Problem] Problem is to discard erroneous data more surely, and to receive correct data more surely. [Means to solve the problem] A receiving apparatus to receive data by use of a second protocol data unit, which stores a plurality of first protocol data units of a first layer set for each of plural radio bearers and which is based on a second layer corresponding to a lower layer of the first layer, includes a providing means for providing the first protocol data unit, which is stored in the second protocol data unit with specific information specifying the second protocol data unit in the second layer and a discarding means for discarding. another first protocol data unit, which is stored in the second protocol data unit storing the erroneous first protocol data unit with reference to the specific information in the case that a predetermined first protocol data unit includes an error in the first layer.

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Номер записи: 69
07-06-2012 дата публикации

Reed-solomon erasure decoding with error detection for retransmission

Номер: US20120144259A1
Автор: John Greszczuk, Joshua Grossman, Marcos C. Tzannes
Принадлежит: Aware Inc

By utilizing Reed-Solomon erasure decoding algorithms and techniques, the system is able to perform error detection for the case where the number of bytes received in error exceeds a correcting capability of a decoder. The error detection can be used, for example, to determine whether a codeword is decodable, and whether the retransmission of data is necessary. The retransmission can be accomplished by assembling a message that is sent to another modem requesting retransmission of one or more portions of data, such as one or more codewords.

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Номер записи: 70
14-06-2012 дата публикации

Transmission device, reception device and communication system

Номер: US20120147140A1
Автор: Eisaburo Itakura, Hideki Iwami, Hiroaki Takahashi, Kei Kakitani, Satoshi Tsubaki
Принадлежит: Sony Corp

A video image data encoder comprises an input to receive stereoscopic image data. The stereoscopic image data includes first and second image data having chronological correspondence. An error correction encoding unit combines portions of the first image data and corresponding portions of the second image data from the input unit into a common encoding matrix. An error correcting code derived from the combined portions is added to the encoding matrix.

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Номер записи: 71
14-06-2012 дата публикации

Apparatus and method for retransmitting data based on harq scheme in wireless communication system

Номер: US20120147734A1
Автор: Jeong Ki Kim, Ki Seon Ryu, Su Nam Kim, Young Soo Yuk
Принадлежит: LG ELECTRONICS INC

A method for retransmitting data using an HARQ method and a mobile station using the same in a wireless telecommunications system are disclosed herein. When all bits of a resource index field in an uplink basic assignment A-MAP received from a base station through a specific frame are set to 1, the mobile station may not retransmit an HARQ sub-packet from an uplink subframe within the specific frame. In this case, the mobile station may retransmit an HARQ sub-packet from an uplink subframe within a frame subsequent to the specific frame. At this point, the uplink subframe and resource index of the subsequent frame respectively correspond to the subframe and resource index having the same index and resource index of an uplink subframe predetermined in association with the retransmission of the mobile station in a previous frame. The resource index corresponds to information indicating where the assigned resource is positioned within the corresponding subframe and how large the size of the assigned resource is. Alternatively, the mobile station may receive once again the uplink basic assignment A-MAP, so as to retransmit the HARQ sub-packet from an uplink subframe designated by the uplink basic assignment A-MAP.

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Номер записи: 72
14-06-2012 дата публикации

Methods and apparatus for detection of resource collision in wireless peer-to-peer communication networks

Номер: US20120147745A1
Автор: Junyi Li, Sundar Subramanian, YING Wang
Принадлежит: Qualcomm Inc

A method of operating a wireless device includes selecting a CID with a first node and receiving a signal including an LID on a resource. At least one of the signal or the resource is based on the selected CID. The method further includes determining a presence of a second node using the selected CID based on the LID in the received signal. Another method of operating a wireless device includes selecting a CID with a first node and sending a signal including an LID on a resource. At least one of the signal or the resource is based on the selected CID.

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Номер записи: 73
14-06-2012 дата публикации

Pich-hs timing and operation

Номер: US20120147816A1
Автор: Aziz Gholmieh, Etienne F. Chaponniere, Francesco Grilli, Oronzo Flore
Принадлежит: Qualcomm Inc

Systems and methodologies are described that facilitate employing a paging indicator channel in connection with high speed channels in a wireless communications network. A paging indicator transmission can be sent on the paging channel to one or more mobile devices. The paging indicator indicates that additional information such as a full paging messages, other control plane data or other user plane data is expected to be transmitted at a specific time instant (e.g., subframe) on the associated high speed channel. A set of parameters can be transmitted on common channels that specify a set of associated subframes in a high speed channel. Mobile devices can analyze the set of parameters to determine the associated subframes and receive the subframes in accordance with a schedule.

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Номер записи: 74
28-06-2012 дата публикации

Method for harq and link adaptation of device to device link in direct communication between user equipments and relaying by user equipment

Номер: US20120163252A1
Автор: Jae Young Ahn, Tae Gyun Noh, Young Jo Ko
Принадлежит: Electronics and Telecommunications Research Institute ETRI

Provided is a method of processing hybrid automatic repeat request (HARQ) and adaptive transmission of a device-to-device (D2D) link. In the method, an operation method of user equipment (UE) includes (a) receiving an initial transmission mode (TM) and transmission power for the D2D link from a base station, and performing data transmission through the D2D link, (b) determining, at the UE, a TM and transmission power of a succeeding subframe, or receiving a TM control value and a transmission power control value from counterpart UE of the D2D link and determining the TM and the transmission power of the succeeding subframe, and (c) performing the data transmission to the counterpart UE using the determined TM and transmission power. Here, (b) and (c) are repeated.

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Номер записи: 75
28-06-2012 дата публикации

Method for transmitting response information in mobile communications system

Номер: US20120163325A1
Автор: Myung Cheul Jung, Sung Duck Chun, Sung Jun Park, Young Dae Lee
Принадлежит: LG ELECTRONICS INC

A method for a user equipment to perform a random access to a network in a mobile communication system includes transmitting a random access preamble to the network; receiving a medium access control packet data unit (MAC PDU) via a downlink shared channel, wherein the MAC PDU comprises one or more sub headers in a first part of the MAC PDU and one or more random access responses in a second part of the MAC PDU subsequent to the first part, and wherein the random access responses include first uplink resource allocation information; transmitting a first uplink data based on the first uplink resource allocation information in one of the random access responses; and transmitting a second uplink data based on second uplink resource allocation information when the second uplink resource allocation information is received via a downlink control channel.

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Номер записи: 76
28-06-2012 дата публикации

Mu-mimo access point and user station including methods for multi-user group management

Номер: US20120163483A1
Автор: Robert J. Stacey, Xiaohong X. Gong
Принадлежит: Intel Corp

Embodiments of a MU-MIMO access point, user station and method for multi-user group management are generally described herein. In some embodiments, a MU-MIMO access point may assign a MU group identifier (GID) and a group member index (GMI) to each of a plurality of associated user stations. The MU-MIMO access point may transmit a MU-MIMO transmission that includes a plurality of spatial streams. The MU-MIMO transmission may be destined for the user stations of a single MU group indicated by a GID that is included within the MU-MIMO transmission. A subset of the spatial streams may be intended for each user station of the indicated MU group that is identified by the GID transmitted within the MU-MIMO transmission. A user station may use its assigned GMI along with an N sts field in the MU-MIMO transmission to determine which of the spatial streams to demodulate.

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Номер записи: 77
05-07-2012 дата публикации

Allocation of Acknowledgement Channels to Channel Groups Having Fixed Transmit Energies

Номер: US20120170479A1
Автор: Hong Ren, Xixian Chen
Принадлежит: Telefonaktiebolaget LM Ericsson AB

A method and apparatus is provided for assigning resources for an acknowledgement channel, such as the PHICH in LTE systems. A list of acknowledgement channels for a group of scheduled mobile terminals is generated. The list is sorted in descended order of the required transmit energies for the corresponding mobile terminals. The acknowledgement channels are then assigned to channel groups one at a time in sorted order to an available channel group with the lowest cumulative transmit energy. By sorting the channel list before assigning resources, the variance in the transmit energies for different channel groups is reduced. Given enough number of acknowledgement channel groups, the small variance in the transmit energies for different channel groups implies improved error rate performance.

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Номер записи: 78
05-07-2012 дата публикации

System for interconnecting a remote server with a short message server centre (smsc) via the internet

Номер: US20120172068A1
Автор: Arturo Sordo Miralles, Santiago Borrero Ortiz
Принадлежит: VODAFONE GROUP PLC

It allows the transmission of short messages (SMS) between a remote server ( 1 ) and a mobile telephone user ( 7 ), that is in communication with a short message service centre ( 5 ) via GSM network 10 . It is characterized in that remote server ( 1 ) communicates with the short message server ( 5 ) via a hypertext transfer protocol (http), for which both server ( 5 ) and remote server ( 1 ) have means of bi-directional transmission/reception ( 2, 3, 8 and 9 ) of the short message via the Internet protocol (http).

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Номер записи: 79
05-07-2012 дата публикации

System and method for dynamic data management in a wireless network

Номер: US20120172673A1
Автор: Bruce Arnold Friedman, Matthew George Grubis, Matthew Richard Pekarske
Принадлежит: General Electric Co

A node is configured for transmitting a data packet over a wireless network according to a differentiated services control parameter. The node includes a controller configured to provide individualized control of the differentiated services code parameter and also to provide individualized control over a payload in the data packet. The controller is also configured to receive data to be transmitted over the wireless network, assign a priority level to the data, and adjust the differentiated services control parameter setting for the node based on the priority level. The controller is also configured to determine a signal quality indicator for the wireless network, and to adjust the amount of the data included in the payload based on the signal quality indicator.

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Номер записи: 80
12-07-2012 дата публикации

Method and apparatus for sending feedback for multi-cell high speed downlink packet access operations

Номер: US20120176947A1
Автор: Fengjun Xi, Janet A. Stern-Berkowitz, Joseph S. Levy, Lujing Cai
Принадлежит: InterDigital Patent Holdings Inc

A method and apparatus for sending feedback for multi-cell high speed downlink packet access (HSDPA) operations are disclosed. A wireless transmit/receive unit (WTRU) may generate and send hybrid automatic repeat request acknowledgement (HARQ-ACK) messages and/or channel quality indication (CQI) or precoding control indication/channel quality indication (PCI/CQI) messages for a plurality of cells via a plurality of high speed dedicated physical control channels (HS-DPCCHs) with a spreading factor of 128. Each HARQ-ACK message may be mapped to two cells and each CQI or PCI/CQI message may be mapped to one cell. The cells may be remapped to an HARQ-ACK message and a CQI or PCI/CQI message within an HS-DPCCH on a condition that any cell is activated or deactivated on that HS-DPCCH.

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Номер записи: 81
12-07-2012 дата публикации

Methods and systems for improving retransmission performance of data channels in a wirelss communication system

Номер: US20120177153A1
Автор: Mingxia Cheng, Yongbin Wei
Принадлежит: Qualcomm Inc

Certain aspects of the present disclosure provide a system and method for improving performance of HARQ operation in a wireless communication system. The proposed method enables a receiver to update a receive buffer only if newly received values corresponding to a data packet are more reliable than previous values corresponding to the same data packet (that are stored in the receive buffer). The receiver may use the more reliable information (e.g., the newly received values or the previously stored values) for decoding.

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Номер записи: 82
19-07-2012 дата публикации

Feedback scheme for providing feedback on plural transmissions

Номер: US20120182914A1
Автор: Alexander Golitschek Edler Von Elbwart, Christian Wengerter, Joachim Löhr, Priya Hariharan, Seigo Nakao
Принадлежит: Panasonic Corp

The invention relates to methods and apparatuses for providing HARQ feedback in a mobile communication system using carrier aggregation. To suggest a scheme for transmitting feedback on the successful/unsuccessful decoding of transmissions that is operable in FDD mode, the invention proposes to utilize only a single one of plural radio resources available for feedback transmission for signaling feedback for multiple transmissions. A feedback sequence of ACK/NACKs for the transmissions is mapped to one feedback resource combination that is one of the radio resources available for feedback transmission and a modulation symbol of the given modulation scheme that is transmitted on said one radio resource. This scheme can also be used in cases where the number of possible feedback sequences of ACK/NACKs for the transmissions is larger than the number of feedback resource combinations available for feedback transmission.

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Номер записи: 83
19-07-2012 дата публикации

Method of Handling Latency Impact on CoMP HARQ and Feedback Operation and Related Communication Device

Номер: US20120182918A1
Автор: Yu-Chih Jen
Принадлежит: HTC Corp

A method of handling a hybrid automatic repeat request (HARQ) operation for a network in a wireless communication system is disclosed. The network supports a coordinated multipoint transmission/reception (CoMP) operation. The method comprises determining a modified HARQ operation for the CoMP operation, wherein the modified HARQ operation is a derived HARQ operation or a variation of the HARQ operation; configuring the modified HARQ operation to a mobile device in the wireless communication system when the mobile device participates in the CoMP operation; and performing a transmission or a reception of a HARQ process according to the modified HARQ operation.

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Номер записи: 84
19-07-2012 дата публикации

Selective protection based on sequence numbers in coexisting networks

Номер: US20120184330A1
Автор: Ariton E. Xhafa, Assaf Sella, Josef Peery, Ramanuja Vedantham, Xiaolin Lu, Yanjun SUN
Принадлежит: Texas Instruments Inc

A wireless device comprises a first wireless transceiver, a second wireless transceiver, and control logic. The control logic is coupled to the first wireless transceiver and the second wireless transceiver. The control logic is configured to determine whether to transmit protection frames (e.g., clear-to-send 2 self frames) based upon sequence numbers in frames received from another device.

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Номер записи: 85
02-08-2012 дата публикации

Joint uplink data processing by plural base stations

Номер: US20120195284A1
Автор: Donald Brinkhurst, Jianguo Long, Karl D. Mann, Ping Yu, Roger Mah
Принадлежит: Nortel Networks Ltd

Joint uplink processing by plural base stations includes sending, by a serving base station, a request for uplink resources of a second base station for receiving uplink data of a mobile station. The serving base station receives first uplink data from the mobile station, and the serving base station further receives (from the second base station) second uplink data of the mobile station received by the second base station using the uplink resources specified by the request.

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Номер записи: 86
09-08-2012 дата публикации

Methods of uplink channelization in lte

Номер: US20120201120A1
Автор: Jianzhong Zhang, Joonyoung Cho
Принадлежит: Individual

Methods of a slot-level remapping physical uplink control channels into two resource blocks respectively located at two slots of a subframe, are generally adapted to a 3 GPP LTE physical uplink where ACK/NAK resource blocks may be applied by the extended cyclic prefix, adapted to a complex 3GPP LTE physical uplink where mixed resource blocks (where the ACK/NAK and CQI channels coexist) may be applied by the normal cyclic prefix, and adapted to a complex 3GPP LTE physical uplink where mixed resource blocks (where the ACK/NAK and CQI channels coexist) may be applied by the extended cyclic prefix.

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Номер записи: 87
09-08-2012 дата публикации

Mitigation of Interfering Sounding Reference Signals in Radiocommunication Systems

Номер: US20120201149A1
Автор: Anders Johansson, Christian SKÄRBY
Принадлежит: Telefonaktiebolaget LM Ericsson AB

Sounding reference signals transmitted in one cell, and which use a same base sequence as sounding reference signals transmitted in a neighboring cell, may cause interference. Detection of signal energy on unallocated sounding resources in a cell can be used when allocating additional sounding resources in that cell. Coordination among base stations, e.g., eNodeBs, can be performed to mitigate potential sounding reference signal interference.

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Номер записи: 88
09-08-2012 дата публикации

METHOD AND APPARATUS FOR SENDING AND RECEIVING CHANNEL QUALITY INDICATORS (CQIs)

Номер: US20120201166A1
Автор: Christopher R. Cave, Paul Marinier, Rocco DiGirolamo, Sudheer A. Grandhi, Vincent Roy
Принадлежит: InterDigital Technology Corp

A method and apparatus for sending and receiving channel quality indicators (CQIs) is disclosed. A CQI may be sent or received periodically. A CQI may also be sent or received upon request by a network.

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Номер записи: 89
09-08-2012 дата публикации

Power-saving method in a wireless communication system

Номер: US20120201182A1
Автор: Han Gyu Cho, Jae Hoon Chung, Kyu Jin Park, Seung Hee Han, Sung Ho Moon, Yeong Hyeon Kwon
Принадлежит: LG ELECTRONICS INC

The present invention relates to a power-saving method in a wireless communication system. In a power-saving method for a terminal of a wireless communication system according to one aspect of the present invention, the terminal receives configuration information relating to power-saving from a base station and operates in a power-down mode in which receive processing is not carried out in accordance with the configuration information relating to power saving; and the configuration information comprises at least one or other of information relating to a time point at which the base station is not transmitting packets to the terminal and a time point at which the base station is transmitting packets to the terminal.

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Номер записи: 90
09-08-2012 дата публикации

Transmit methods with delay diversity and space-frequency diversity

Номер: US20120201329A1
Автор: Cornelius van Rensburg, Farooo Khan, Jianzhong Zhang, Yinong Ding
Принадлежит: Individual

In this invention, several open-loop solutions that encompass the small delay CDD codeword cycling, codeword cycling between different re-transmissions of both small and large delay CDD are proposed. In addition, an open-loop codeword cycling method for SFBC+FSTD scheme, as well as its extension to SFBC+FSTD based HARQ, are proposed. In one method, a plurality of information bits are encoded, scrambled and modulated to generate a plurality of modulation symbols. The plurality of modulation symbols are mapped onto the subcarriers in at least one transmission layer of a transmission resource. The modulation symbols are then precoded by using a matrix for cyclic delay diversity and a set of codewords from a certain codebook to generate a plurality of precoded symbols. The codewords are cycled for every a certain number of subcarriers. Finally, the precoded symbols are transmitted via a plurality of transmission antennas.

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Номер записи: 91
16-08-2012 дата публикации

Backward compatible lte system design for asymmetric uplink/downlink spectrum

Номер: US20120207067A1
Автор: Durga Prasad Malladi, Yongbin Wei
Принадлежит: Qualcomm Inc

A method of frequency division duplex (FDD) wireless communications asymmetrically maps between downlink and uplink spectrum blocks. Multiple downlink spectrum blocks may be mapped to an uplink spectrum block.

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Номер записи: 92
16-08-2012 дата публикации

Dual reed-muller (rm) code segmentation for uplink control information (uci)

Номер: US20120210187A1
Автор: Shohei Yamada, Zhanping Yin
Принадлежит: Sharp Laboratories of America Inc

A method for reporting uplink control information (UCI) on a user equipment (UE) is described. It is determined a number of bits in a sequence of bits for transmission is greater than 11 and less than or equal to 21. The sequence of bits for transmission is segmented into a first segment and a second segment using a floor function. The first segment is encoded using a first Reed-Muller encoder. The second segment is encoded using a second Reed-Muller encoder.

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Номер записи: 93
23-08-2012 дата публикации

Method and system for dynamically adapting a modulation and coding scheme

Номер: US20120213099A1
Автор: Ray-Guang Cheng, Wen-Yen Cheng
Принадлежит: National Taiwan University of Science and Technology NTUST

The invention is directed to a method for dynamically adapting a modulation and coding scheme for a base station transmitting a multicast-and-broadcast service to a plurality of subscribers. The method comprises periodically performing a transmission adapting process. The transmission adapting process comprises steps of setting a feedback condition according to a coverage corresponding to the multicast-and-broadcast service and sending a negative-acknowledge-based feedback query including the feedback condition, a feedback channel and feedback information corresponding to the multicast-and-broadcast service to the subscribers. According to a feedback-receiving status, the base station adapts a modulation and coding scheme for transmitting the multicast-and-broadcast service.

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Номер записи: 94
23-08-2012 дата публикации

Repetitive transmissions in multi-carrier based wireless access techniques

Номер: US20120216092A1
Автор: Jae-Won Chang, Jin-Hyuk Jung, Jin-Young Chun, Moon-Il Lee
Принадлежит: LG ELECTRONICS INC

According to one embodiment, a method for repetitive transmission using a plurality of sub-carriers includes: preparing a symbol to be transmitted using the plurality of sub-carriers within a single time domain unit; repeating the symbol a predetermined number (N) of times; applying a corresponding one of N different cyclic shift values to each of the N repeated symbols to be transmitted using the plurality of sub-carriers within the single time domain unit; performing an IFFT (Inverse Fast Fourier Transform) on each of the N repeated symbols to which the corresponding one of the N different cyclic shift values is applied; and transmitting the N repeated symbols on which the IFFT is performed using the plurality of sub-carriers.

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Номер записи: 95
30-08-2012 дата публикации

Apparatus for transmitting and receiving downlink harq feedback and its method

Номер: US20120218923A1
Автор: Dong Guk Lim, Han Gyu Cho, Jin Sam Kwak
Принадлежит: LG ELECTRONICS INC

A terminal unit for receiving a hybrid automatic retransmission request (HARQ) feedback using a frequency division duplex (FDD) frame comprises: a receiver, which receives an uplink assignment information element (A-MAP IE) for allocating each uplink through each downlink subframe of a first frame from a base station; a processor, which performs a process for transmitting uplink data that corresponds to the received A-MAP IE for allocating each uplink for a predetermined processing time: a transmitter, which transmits the processed uplink data to the base station from the respective downlink subframes having received the A-MAP IE for allocating each uplink, through each corresponding uplink subframe, after the predetermined processing time has lapsed; and a receiver, which receives, from the base station, the downlink HARQ feedback for each uplink data through each uplink subframe that has, in a third frame, the same index as the index of each downlink subframe where the A-MAP IE for allocating each uplink has been transmitted, wherein the frame is composed of 5, 6 or 7 subframes.

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Номер записи: 96
30-08-2012 дата публикации

Method and apparatus for multiplexing code division multiple access and single carrier frequency division multiple access transmissions

Номер: US20120218957A1
Автор: Jung A. Lee
Принадлежит: Lucent Technologies Inc

The present invention provides a method and apparatus for multiplexing code division and frequency division transmissions. One embodiment of the method includes accessing at least one first symbol and at least one second symbol, encoding the at least one first symbol according to a frequency division protocol, and encoding the at least one second symbol using a coding sequence having a cyclic correlation property. The method also includes transmitting a radiofrequency signal indicative of the at least one encoded first symbol and the at least one encoded second symbol.

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Номер записи: 97
30-08-2012 дата публикации

Computer-readable recording medium storing transmission control program, communication device and transmission control method

Номер: US20120221678A1
Автор: Ryuta Tanaka
Принадлежит: Fujitsu Ltd

A computer-readable medium storing a program causing a computer to execute a process, the program includes, receiving a first request for requesting transmission of particular information from a request node belonging to a logical network to which the computer belongs, directly without depending on the topology of the logical network, or through one or more other nodes on a path that comes into a node equivalent to the computer in the topology of the logical network; selecting one or more responsible nodes relating to transmission of the particular information; correlating partial particular information that is a portion or all portions of the particular information with each of the responsible nodes; transmitting, in the event that the computer has been selected as the responsible node; and transmitting, in the event that there is a responsible child node selected as the responsible node of the one or more child nodes.

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Номер записи: 98
13-09-2012 дата публикации

Flexible time division duplex method and apparatus for communication system

Номер: US20120230232A1
Автор: Hyoungju JI, Jinkyu HAN, Joonyoung Cho, Juho Lee, Seunghoon Choi, Youngbum Kim
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A flexible Time Division Duplex (TDD) method and apparatus is provided for improving efficiency of communication system. A communication method of a base station supporting TDD includes transmitting, to a terminal, first information including at least one of a flag indicating whether flexible subframes are used and an indicator indicating a candidate flexible subframe set to an uplink subframe; transmitting, to the terminal, second information including a switch flag indicating whether to use the candidate flexible subframe as a downlink subframe; and transmitting, to the terminal, when the candidate flexible subframe is indicated to be used as the downlink subframe, the candidate flexible subframe as the downlink subframe.

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Номер записи: 99
13-09-2012 дата публикации

Communication method and communication device as well as computer program

Номер: US20120230349A1
Автор: Kazuyuki Sakoda
Принадлежит: Sony Corp

Communication performed within a network including a plurality of communication stations is provided, in which when an access control is performed so that communication timing of a packet can not collide with that of another station by detecting a signal which is transmitted from another station, “a header area processed not to become easily an error such as a physical layer header portion of a packet” which is transmitted from a communication station is made to have at least information which is required for extracting information in a payload of the packet and a field for controlling an access reservation of transmission of a packet which is generated as a result of transmission of another packet so that processing using the field can be performed.

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Номер записи: 100