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Небесная энциклопедия

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

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Мониторинг СМИ

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

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Применить Всего найдено 135492. 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

Method and a device for determining a shifting parameter to be used by a telecommunication device for transferring symbols

Номер: US20120002629A1

Автор: Cristina Ciochina, Damien Castelain, David Mottier, Loic Brunel

Принадлежит: Mitsubishi Electric Corp

A method for determining a shifting parameter P to be used by a telecommunication device for mapping symbols on sub-carriers, the telecommunication device including at least two transmit antennas, the symbols being transferred through each antenna of the telecommunication device on at least an even number K, strictly greater than two, of sub-carriers allocated to the telecommunication device. The telecommunication device transfers on a first antenna on each sub-carrier ‘k’, a signal representing a symbol ‘X k ’ in the frequency domain. The telecommunication device transfers on a second antenna on each sub-carrier ‘k’, a signal representing a symbol ‘X′ k ’ derived from the signal transferred on the first transmit antenna, for each frequency k, by the formula X K secondAnt =ε(−1) k+1 X* (p-l-k)mod K . Sub-carriers grouped in at least two clusters are allocated to the telecommunication device, and the shifting parameter p is even and determined according to clusters of sub-carriers allocated to the telecommunication device.

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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

Data processing apparatus and method

Номер: US20120002739A1

Автор: Jean-Luc Peron

Принадлежит: Sony Europe Ltd

A data processing apparatus maps input symbols to be communicated onto a predetermined number of carrier signals of an Orthogonal Frequency Division Multiplexed (OFDM) symbol. The data processor includes an interleaver memory which reads-in the predetermined number of data symbols for mapping onto the OFDM carrier signals. The interleaver memory reads-out the data symbols on to the OFDM carriers to effect the mapping, the read-out being in a different order than the read-in, and the order being determined from a set of addresses. The set of addresses are generated from an address generator. The address generator includes a linear feedback shift register and a permutation circuit.

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Номер записи: 4

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: 5

05-01-2012 дата публикации

Terminal device and base station device

Номер: US20120004002A1

Автор: Masahiko Nanri, Takayuki Kawamura, Tsutomu Onuki

Принадлежит: Panasonic Corp

A terminal device free of interference between an RACH and a PUSCH or the like even when a base station device with a large coverage is installed. In the device, a configuration number extraction unit ( 103 ) extracts a configuration number from a BCH received by a BCH reception unit ( 102 ). A control unit ( 104 ) determines the corresponding RACH format (the necessity of repetition, the CP length TCP, the second preamble length TPRE2, and the GT length TGT) according to the configuration number, notifies a repetition unit ( 109 ) of the result of the judgment of necessity of repetition, notifies the repetition unit ( 109 ) of the second preamble length TPRE2, notifies a CP addition unit ( 110 ) of the CP length TCP, and notifies a GT addition unit ( 112 ) of the GT length TGT. When the repetition unit ( 109 ) receives the notification of performing the repetition, it performs the repetition according to the second preamble length received from a TPRE2 determination section ( 154 ). The CP addition unit ( 110 ) produces a CP according to the CP length received from a TCP determination section ( 155 ).

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Номер записи: 6

08-02-2017 дата публикации

Устройство декодирования управляющей информации

Номер: RU0000168557U1

Автор: Александр Петрович Шабанов, Сергей Витальевич Козлов

Принадлежит: Федеральное государственное учреждение "Федеральный исследовательский центр "Информатика и управление" Российской академии наук" (ФИЦ ИУ РАН)

Техническое решение относится к вычислительным комплексам и компьютерным сетям с устройствами для обработки данных с воздействием на порядок расположения данных и на их содержание.Предметная область применения - центры и комплексы управления робототехническими объектами автоматизированных систем управления организационных систем.Техническим результатом, на достижение которого направлено настоящее техническое решение, является повышение производительности декодирования за счет автоматического изменения состава и последовательности действий при приеме единого сигнала об управляющей информации, в зависимости от ее объема и способа кодирования данных. Устройство декодирования управляющей информации характеризуется тем, что содержит модуль анализа данных, модуль декодирования данных, модуль извлечения информации, внутреннюю шину, маршрутизатор, информационный выход, канальный выход, вход и выход настройки, вход электропитания. Положительный эффект от применения данного устройства заключается в повышении производительности за счет выполнения действий по приему и обработке единых сигналов об управляющей информации и действий по приему и обработке двоичных данных об управляющей информации. 6 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 168 557 U1 (51) МПК H04L 29/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21)(22) Заявка: 2016132585, 08.08.2016 (24) Дата начала отсчета срока действия патента: 08.08.2016 (72) Автор(ы): Козлов Сергей Витальевич (RU), Шабанов Александр Петрович (RU) 08.02.2017 Приоритет(ы): (22) Дата подачи заявки: 08.08.2016 1 6 8 5 5 7 (45) Опубликовано: 08.02.2017 Бюл. № 4 Адрес для переписки: 119333, Москва, ул. Вавилова, 44, корп. 2, Федеральное государственное учреждение "Федеральный исследовательский центр "Информатика и управление" Российской академии наук" (ФИЦ ИУ РАН) U 1 1 6 8 5 5 7 (57) Формула полезной модели Устройство декодирования управляющей информации, ...

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Номер записи: 7

14-03-2019 дата публикации

Устройство коммуникационного интерфейса gigaspacewire

Номер: RU0000187642U1

Автор: Александр Валентинович Глушков, Евгений Николаевич Яблоков, Елена Александровна Суворова, Илья Николаевич Алексеев, Сергей Владимирович Горбачев, Татьяна Владимировна Солохина, Юрий Евгеньевич Шейнин, Ярослав Ярославович Петричкович

Принадлежит: Акционерное общество Научно-производственный центр "Электронные вычислительно-информационные системы" (АО НПЦ "ЭЛВИС"), Закрытое акционерное общество Научно-производственный Центр "Микропроцессорные технологии" (ЗАО НПЦ "МиТ")

Полезная модель «устройство коммуникационного интерфейса GigaSpaceWire» относится к цифровой вычислительной технике, а именно к высокоскоростным ЛВС для бортовых комплексов.Техническим результатом является устранение потери пропускной способности при увеличении частоты работы устройства и скорости передачи в интерфейсе до 1 Гбит/с и выше. Может применяться для устройств, поддерживающих протоколы сетевого и транспортного уровней Space Wire.Ближайшим к заявляемому является устройство коммуникационного интерфейса (патент РФ №2483351), которое содержит блоки выдачи данных, приема данных, управления, управления потоком данных и проверки соединения, преобразователи передаваемых и принимаемых символов, приемопередатчик символов и связи.Технический результат достигается тем, что в устройство введены регистр параметра, дешифратор, а также регистры первой и второй констант, параметра рассоединения, константы задержек, компаратор, счетчик соединения, схема совпадения и новые связи. 2 з.п. ф-лы, 16 фиг., 4 табл. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 187 642 U1 (51) МПК H04L 1/00 (2006.01) H04L 12/70 (2013.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК H04L 12/56 (2018.08); H04L 1/00 (2018.08) (21)(22) Заявка: 2018122526, 19.06.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: 14.03.2019 (45) Опубликовано: 14.03.2019 Бюл. № 8 R U 1 8 7 6 4 2 U 1 Адрес для переписки: 190068, Санкт-Петербург, пер. Бойцова, 4, помещение 1-Н, оф. 9, ЗАО НПЦ "МиТ" (56) Список документов, цитированных в отчете о поиске: RU 175049 U1, 16.11.2017. RU 103013 U1, 20.03.2011. EP 458648 B1, 26.04.2000. RU 2460124 C2, 27.08.2012. RU 2483351 C1, 27.05.2013. (54) УСТРОЙСТВО КОММУНИКАЦИОННОГО ИНТЕРФЕЙСА GIGASPACEWIRE (57) Реферат: Полезная модель «устройство Ближайшим к заявляемому является коммуникационного интерфейса GigaSpaceWire» устройство коммуникационного интерфейса относится к цифровой вычислительной технике, (патент РФ № ...

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Номер записи: 8

12-01-2012 дата публикации

Signaling and management of broadcast-multicast waveform embedded in a unicast waveform

Номер: US20120008541A1

Автор: Fatih Ulupinar, Parag A. Agashe, Ragulan Sinnarajah

Принадлежит: Qualcomm Inc

Embodiments describe overlaying a broadcast multicast channel on top of a unicast network. Messages can be generated by protocols in a broadcast/multicast (BCMC) stack and tunneled through an IRTP of a serving access node. These messages can be transmitted on a BCMC channel and/or a unicast channel. Other messages can be generated by protocols in a unicast stack and tunneled to a B-IRTP of a BCMC Access node and transmitted on a BCMC channel to an access terminal.

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Номер записи: 9

12-01-2012 дата публикации

Method, system and device for adaptive modulation and coding

Номер: US20120008574A1

Автор: Deshan Miao, Fei Qin, Guojun Xiao, Shiqiang Suo, Xueming PAN, YU Ding

Принадлежит: Datang Mobile Communications Equipment Co Ltd

An adaptive modulation and coding method is provided by the present invention, comprising: selecting punctured Physical Resource Blocks (PRBs) to transmit the downlink data for the User Equipment (UE); determining the Transport Block Size (TBS) and the number of punctured PRB pairs for transmission to the UE based on the carried service; scheduling the downlink data for the UE based on the determined TBS, and transmitting the number of the used punctured PRB pairs and a Modulation and Coding Scheme (MCS) sequence number to the UE; and the UE converting the number of the punctured PRB pairs to the number of normal PRB pairs, determining the modulation scheme and the TBS sequence number based on the MCS sequence number, and determining the TBS of the downlink data based on the number of the normal PRB pairs and the TBS sequence number. The specific condition when downlink data are transmitted with punctured PRBs may be performed in the present invention on the basis of utilizing the existing resources and adaptive processing of the general subframes by performing conversion between the number of punctured PRBs and the number of normal PRBs in scheduling resource for the UE with the NodeB, which may be implemented simply and efficiently.

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Номер записи: 10

12-01-2012 дата публикации

Method and communication device for feeding back and receiving pre-coding control indication information

Номер: US20120008609A1

Автор: BO Yang, Chongyang Han, Jing Li, Xueli Ma, Zongjie Wang

Принадлежит: Huawei Technologies Co Ltd

The present invention relates to the field of wireless network communications, and provides a method and a device for receiving and sending Pre-coding Control Indication (PCI) information in uplink Multiple-Input Multiple Output (MIMO) transmission or uplink Closed Loop Transmit Diversity (CLTD) transmission, so as to solve a problem that the uplink MIMO communication from a terminal to a Base Station (BS) is unable to be realized in the prior art. A BS transmitting method includes carrying a code sequence, which represents PCI information, in a feedback channel of a BS. The beneficial effect of the present invention is: by feeding back the PCI information, the terminal realizes the maximization of a block length supported by an existing channel condition after the uplink MIMO is introduced, so as to improve an uplink transmission rate.

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Номер записи: 11

12-01-2012 дата публикации

Method for encoding data with double-interlaced parity symbols, for a radio infrastructure, and associated codec

Номер: US20120008706A1

Автор: Bessem Sayadi, Yann Leprovost

Принадлежит: Alcatel Lucent SAS

A method is dedicated to encoding data that must be transmitted by means of a wave-based transmission infrastructure, and comprises i) a step consisting of creating in parallel M first matrices having T rows and C columns with subsets of data from B successive received bursts, the subsets of data from each burst being distributed within at least two successive first matrices, ii) a step consisting of creating in parallel M second matrices each having T rows and N columns with parity symbols resulting from encoding the data that is respectively contained in the rows of each of the M first matrices, iii) a step consisting of creating in parallel M first matrices having K rows and C columns with parity symbols resulting from encoding the data that is respectively contained in the columns of each of the M first matrices, and iv) a step consisting of distributing by interlacing, firstly, J subsets of parity symbols from each second matrix into J successive sets, and secondly P subsets of parity symbols from each third matrix into P of these successive sets, and of placing into each of the successive sets the respective data from the successive received bursts.

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Номер записи: 12

12-01-2012 дата публикации

Method for informing user equipment of downlink control message construction information in cellular system

Номер: US20120009934A1

Автор: Bin Chul Ihm, Jeong Ki Kim, Jin Soo Choi, Su Nam Kim

Принадлежит: LG ELECTRONICS INC

A method for transmitting control messages from a base station to a user equipment in a cellular system is disclosed. The method includes grouping a plurality of control messages for at least one user equipment based on at least one criteria of whether or not uplink ACK/NACK channel indexes are allowed to be implicitly used in the control messages, whether or not the user equipment corresponding to the control messages is able to implicitly use the uplink ACK/NACK channel indexes, sizes of Information Elements (IEs) of the control messages, whether or not the control messages are segmented into a predetermined number of subblocks, MCS levels applied to the control messages, sizes of allocated IEs of the control messages after applying the MCS levels, and frequency partitions in which the IEs of the control messages are present, and transmitting the grouped control messages.

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Номер записи: 13

12-01-2012 дата публикации

Method and apparatus for improved multicast streaming in wireless networks

Номер: US20120011415A1

Автор: Arun Narayen Netravali, Katherine H. Guo, Krishan K. Sabnani

Принадлежит: Alcatel Lucent USA Inc

The invention includes a method and apparatus for providing media content. The method includes duplicating each packet of an original packet stream for which an associated importance level satisfies an importance condition, inserting each duplicate packet within the original packet stream to form thereby a modified packet stream, and transmitting the modified packet stream toward a wireless terminal adapted for processing the modified packet stream for presenting the media content conveyed by the original packet stream. The duplicate packets may be inserted within respective windows associated with the duplicate packets, wherein each window is determined according to an original packet position associated with the original packet from which the duplicate packet is formed.

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Номер записи: 14

19-01-2012 дата публикации

Constant amplitude decoding apparatus and method for multiplexed direct-sequence spread communication system

Номер: US20120014411A1

Автор: Cheol Sig Pyo, Jong Suk Chae, Se Han Kim, Seong Soon Joo, Tae Joon Park

Принадлежит: Electronics and Telecommunications Research Institute ETRI

A constant amplitude decoding apparatus and method for multiplexed direct-sequence spread spectrum communication system are provided. The constant amplitude decoding apparatus includes: a despreading and demultiplexing module receiving a data stream of a constant amplitude and despreading and demultiplexing the received data stream to restore it to a 2D signal; a decoding module first performing a vertical decoding on the 2D signal and then performing horizontal decoding thereon; a control module determining whether to repeatedly perform vertical decoding and horizontal decoding; and a bit stream information output module outputting the decoding results from the decoding module as a bit stream.

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Номер записи: 15

19-01-2012 дата публикации

Method and apparatus for determining ue mobility status

Номер: US20120014425A1

Автор: Jiandong Zhuang, Xixian Chen

Принадлежит: Telefonaktiebolaget LM Ericsson AB

A radio user equipment (UE) mobility status is determined in a communications node. UE mobility status measurements associated with the UE communicating over a radio channel are performed. The UE mobility status corresponds to a degree of variation of the radio channel over time. Channel characteristics of the radio channel at a first time and at a second later time are determined. Based on the determined channel characteristics, a channel characteristic error metric is determined and compared to a predetermined threshold. The UE mobility status is determined based on one or more iterations of the threshold comparison.

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Номер записи: 16

19-01-2012 дата публикации

Dtv transmitting system and method of processing data in dtv transmitting system

Номер: US20120014458A1

Автор: Hyoung Gon Lee, In Hwan Choi, Jin Woo Kim, Kook Yeon Kwak

Принадлежит: LG ELECTRONICS INC

A DTV transmitting system includes two pre-processors. The first pre-processor codes high-priority enhanced data for forward error correction (FEC) and expands the FEC-coded data. The second pre-processor codes low-priority enhanced data for FEC and expands the FEC-coded low-priority enhanced data. The DTV transmitting system further includes a data formatter generating enhanced data packets including the pre-processed data, a multiplexer multiplexing the enhanced data packets with main data packets, an RS encoder RS-coding the multiplexed data packets, a data interleaves interleaving the RS-coded data packets, and a block processor which codes each block of enhanced data in the interleaved enhanced data packets and bypasses the interleaved main data packets.

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Номер записи: 17

19-01-2012 дата публикации

Method for soft modulation in a wireless telecommunication network

Номер: US20120014480A1

Автор: Avner Dor, Maxim Gotman

Принадлежит: DESIGNART NETWORKS LTD

A method for soft remodulation in a receiver of transmissions over a wireless telecommunication system, the method including obtaining from a FEC decoder a-posteriori LLR values, converting the a-posteriori LLR values into bit probabilities and computing improved soft symbols estimates as expected values using the bit probabilities in a recursive algorithm. Preferably, the step of converting is implemented using a pre-computed Look Up Table (LUT). Preferably, the step of computing is implemented in a Multiplier-Accumulator having a SIMD structure.

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Номер записи: 18

19-01-2012 дата публикации

Information security transmission system

Номер: US20120017086A1

Автор: Fong Chang Chu

Принадлежит: STARS Tech Ltd

Provided herein is an information security transmission system, comprising a first information equipment and a second information equipment, wherein the first information equipment can obtain at least one certification data, connecting to the second information equipment through a network for processing an information transmission, accordingly, a key pair used for encryption/decryption can be obtained through the certificate authority or that can be obtained without the certificate authority selectively, such that the information transmission security channel can be established and the data transmission security can be ensured. The first information equipment and the second information equipment respectively comprises a first dynamic codec and a second dynamic codec for processing a coding/decoding process depending on a dynamic code book, furthermore, an automatic error detecting mechanism and an error correcting mechanism can be associated for ensuring the data transmission security and the data correction especially at one time transmission.

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Номер записи: 19

26-01-2012 дата публикации

Method and apparatus for encoding a signal

Номер: US20120020276A1

Автор: Ivonete Markman

Принадлежит: Ivonete Markman

Communication systems for broadcasting data often include the ability to combine and transmit more than one type or format of data. A method includes receiving a packet of data, determining a location for a parity byte, the location based on a characteristic of the packet of data, decoding, the data to determine a value for the parity byte, and outputting a coded packet of data. An apparatus includes a first signal processor for receiving a first data signal and a second data signal, combining the signals, and creating a signal identifying the signals. The apparatus also includes a second signal processor for encoding the combined signal using a decoding algorithm to generate Reed-Solomon parity bytes in locations within the combined signal based on the identifying signal.

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Номер записи: 20

26-01-2012 дата публикации

Method for changing modulation scheme and base station apparatus using said method

Номер: US20120020281A1

Автор: Sakiko Nakamura

Принадлежит: Kyocera Corp

An EVM measurement unit measures the EVM of received signals, and performs a weighted average on them so as to derive MSE. A frequency acquiring unit acquires the change frequency of modulation scheme and the occurrence frequency of data retransmission. A moving status acquiring unit acquires the variation situation in moving velocity of a terminal apparatus or positional relationship between a base station apparatus and the terminal apparatus. A threshold modifying unit determines the modulation scheme used for the next communication, based on the value of MSE and other pieces of information described above.

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Номер записи: 21

26-01-2012 дата публикации

Systems and methods for pucch feedback in 3gpp wireless networks

Номер: US20120020288A1

Автор: Jianzhong Zhang, Lingjia Liu, Young-Han Nam

Принадлежит: SAMSUNG ELECTRONICS CO LTD

A mobile station for use in a wireless network. The mobile station transmits feedback values in a physical uplink control channel (PUCCH) to a base station of the wireless network. The mobile station is operable to transmit to the base station a subband second precoder matrix index (PMI) associated with a particular subband and a subband channel quality indicator (CQI) value associated with the particular subband together in a subframe of the PUCCH.

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Номер записи: 22

26-01-2012 дата публикации

Transmission using common and dedicated pilots

Номер: US20120020434A1

Автор: Aaron Callard, Dong-Sheng Yu, Jianglei Ma, Mohammadhadi Baligh

Принадлежит: ROCKSTAR BIDCO LP

A method, system, base station and wireless terminal are provided for transmission of a set of mixed pilots that includes both common and dedicated pilots. The method includes selecting a number D of dedicated pilots having regard to performance of the communication link, D≧0, selecting a first pre-coder for pre-coding D dedicated pilots based on some criteria, performing a first pre-coding of the D dedicated pilots with the first pre-coder to produce a set of pre-coded dedicated pilots, performing a second pre-coding of the set of pre-coded dedicated pilots and a set of common pilots to produce a set of mixed pilots, and transmitting data from the transmitter on the communication link with the set of mixed pilots.

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Номер записи: 23

26-01-2012 дата публикации

Communication Device and Control Method Thereof

Номер: US20120021711A1

Автор: Chia Sheng Peng, Chih Yu Chen, Yu-Tai Chang

Принадлежит: MStar Semiconductor Inc Taiwan

A communication device including a receiving unit and a decision-making unit is provided. The receiving unit receives a first burst in a paging message provided from a base station. After comparing a signal-to-noise ratio to a threshold, the decision-making unit decides, based on the comparison result, the judging mechanism for judging whether the paging message is a dummy paging message. The signal-to-noise ratio is associated with the channel via which the first burst passed.

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Номер записи: 24

02-02-2012 дата публикации

Apparatus and a method for performing a fractional bit en- and decoding

Номер: US20120026021A1

Автор: Michael Eiselt

Принадлежит: Individual

The invention relates to a fractional bit encoder ( 1 ) and a method for encoding a data stream into code word identifiers for a physical line encoder ( 13 ), wherein said fractional bit encoder ( 1 ) comprises a (1:K) demultiplexer ( 3 ) for a de-multiplexing a received data stream into a predetermined number (K) of bit streams, a first (K 1 :n) multiplexer ( 4 ) for re-multiplexing a first number (K 1 ) of said K bit streams onto n parallel lines transporting n re-multiplexed bit streams and a second multiplexer ( 5 ) re-multiplexing a second number (K 2 ) of said K bit streams (K 2 :1) onto a single line transporting one further re-multiplexed bit stream, wherein n=[ld(M)] and M being a configurable number of different code word identifiers, a class detector ( 7 ) which evaluates the first n re-multiplexed bit streams to determine a class of the respective bit combination and a word encoder ( 10 ) which encodes the respective bit combination depending on the determined class of the bit combination.

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Номер записи: 25

02-02-2012 дата публикации

Method and apparatus for reporting channel state information of multi-channel in wireless local area network system

Номер: US20120026909A1

Автор: Yong Ho Seok

Принадлежит: LG ELECTRONICS INC

A method for reporting channel state information (CSI), performed by a beamformee, in a wireless local area network system using multi-channels is provided. The method includes receiving, from a beamformer, an NDP announcement (NDPA) frame announcing that a null data packet (NDP) frame follows the NDPA frame, receiving the NDP frame from the beamformer, estimating a channel from a training symbol of the NDP frame and transmitting to the beamformer a CSI report frame containing a result obtained by estimating the channel, wherein the channel is a multi-channel acquired by aggregating first and second channels which are non-contiguous to each other, and wherein the CSI report frame includes an average signal to noise ratio (SNR) for each space-time stream of the first channel and a steering matrix for each subcarrier of the first channel and an average SNR for each space-time stream of the second channel and a steering matrix for each subcarrier of the second channel.

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Номер записи: 26

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: 27

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: 28

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: 29

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: 30

02-02-2012 дата публикации

Communication device and communication method in data transmission system

Номер: US20120027107A1

Автор: Tsugio Takahashi

Принадлежит: NEC Corp

A communication device includes: a detector for detecting a predetermined number of consecutive identical codes from first data for transmission to generate a bit inversion instruction signal; a data inversion section for inversing at least one bit of the first data when the bit inversion instruction signal is generated; and a transmitter for transmitting the second data to another communication device. The predetermined number is not greater than a specified number of consecutive identical codes in the data transmission system.

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Номер записи: 31

09-02-2012 дата публикации

Communication control apparatus and control method

Номер: US20120033557A1

Автор: Motoharu Suzuki

Принадлежит: Canon Inc

A communication control apparatus transfers received data from an external unit to a first memory unit, and at the same time transferring a header portion of the received data to a second memory unit, and performs addition operations the received data transferred to the first memory unit to obtain a checksum value of the received data. It analyzes the header portion transferred to the second memory unit in response to the completion of transferring the header portion to the second memory unit. Then, it acquires an addition value for the region except object regions of checksum for determining an error in the received data, and determines the error in the received data using the result of the addition operation for the received data by the adding unit and the addition value acquired by the acquiring unit.

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Номер записи: 32

09-02-2012 дата публикации

Techniques To Control Power Consumption In An Iterative Decoder By Control Of Node Configurations

Номер: US20120036410A1

Автор: David Rault, Olivier Souloumiac

Принадлежит: Silicon Laboratories Inc

A method for controlling power consumption of an iterative decoder based on one or more criteria is described. The method may include progressively enabling and disabling nodes of the iterative decoder to perform iterative decoding on a demodulated signal to provide a decoded signal with minimal variation of a supply voltage.

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Номер записи: 33

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: 34

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: 35

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: 36

16-02-2012 дата публикации

Wireless communication device and wireless communication method

Номер: US20120039234A1

Автор: Daichi Imamura, Masayuki Hoshino, Seigo Nakao

Принадлежит: Panasonic Corp

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

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Номер записи: 37

16-02-2012 дата публикации

Signaling method and apparatus to enable multiple antenna communications in wireless systems

Номер: US20120039321A1

Автор: Monisha Ghosh, Vasanth R. Gaddam

Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS NV

A method ( 200 ) for signaling a transmission mode in a wireless communication networks comprises selecting a signature sequence corresponding to the transmission mode of a transmitting device (S 210 ); forming, for each antenna in the transmitting device, a synchronization field based on the selected signature sequence, wherein the synchronization field is included in a preamble (S 220 ); and transmitting, from each antenna in the transmitting device, the data frame that comprises the preamble.

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Номер записи: 38

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: 39

16-02-2012 дата публикации

Bitwise reliability indicators from survivor bits in viterbi decoders

Номер: US20120042228A1

Автор: Andries Pieter Hekstra, Nur Engin

Принадлежит: NXP BV

Various embodiments relate to the production of erasure flags to indicate errors resulting from decoding of convolutional codes. A Viterbi decoder may use a register exchange method to produce a plurality of survivor codes. At a defined index, a majority vote may take place comparing values of bits in each of the survivor codes. This majority vote may involve obtaining both the quantity of high-order bits and the quantity of low-order bits and obtaining the difference of the two quantities. The absolute value of the difference of high-order bits to low-order bits may be compared to a defined threshold. When the absolute value difference is below the defined quantity, an erasure flag may be produced and associated with the bits of the defined index, indicating that they are eligible for erasure. In some embodiments, a Reed-Solomon decoder may use the erasure flag to target specific survivor bits or survivor bytes for error-correction through erasure.

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Номер записи: 40

23-02-2012 дата публикации

Method and apparatus for transmitting mcch control signaling in mbsfn manner

Номер: US20120044826A1

Автор: HE Wang, Yonggang Wang, YU Chen

Принадлежит: Alcatel Lucent SAS

A method and device for realizing MBMS control signaling transmission in MBSFN manner are provided in the present invention. Wherein, a base station transmits multimedia broadcast multicast service MBMS control signaling in MBSFN manner, preferably, the base station multiplexes MBMS control signaling and MBMS service data in a same MBSFN subframe, and transmits them according to an adjustment period and/or a repetition period. Then, a mobile station receives the MBMS control signaling at the corresponding MBSFN subframe according to the adjustment period and/or the repetition period. With the solution of the present invention, MBMS control signaling transmission in MBSFN manner is realized.

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Номер записи: 41

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: 42

23-02-2012 дата публикации

Wireless communication apparatus, wireless communication base station, and wireless communication system

Номер: US20120046066A1

Автор: Jun Hirano, Takahisa Aoyama, Takashi Tamura

Принадлежит: Panasonic Corp

Provided is a wireless communication apparatus that transfers information required for a terminal, which performs a carrier aggregation, to be handed over to another base station, while reducing the size of a measurement result report. When establishing wireless communication with the wireless communication base station by use of a plurality of cells of the wireless communication base station, a controller provided in a wireless communication apparatus determines whether to control the measurement result report preparation section so as to prepare the measurement result report by grouping measurement results of at least two cells of the plurality of cells or to control the measurement result report preparation section so as to prepare the measurement result report while including the measurement results of the plurality of respective cells.

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Номер записи: 43

01-03-2012 дата публикации

Method and apparatus for providing channel quality feedback in an orthogonal frequency division multiplexing communication system

Номер: US20120051413A1

Автор: Amitava Ghosh, RAPEEPAT Ratasuk, Weimin Xiao

Принадлежит: MOTOROLA MOBILITY LLC

In an Orthogonal Frequency Division Multiplexing communication system, a user equipment reports channel quality information that is sufficient to construct a fading profile of a frequency bandwidth and that does not consuming the overhead resulting from the reporting of CQI for every sub-band of the frequency bandwidth. In the communication system, the frequency bandwidth may be represented by multiple sub-band levels, wherein each sub-band level comprises a division of the frequency bandwidth into a number of sub-bands different from the number of sub-bands of the other sub-band levels. The user equipment measures a channel quality associated with each sub-band of a sub-band level of the multiple sub-band levels, selects a sub-band of the sub-band level based on the measured channel qualities, and reports channel quality information associated with the selected sub-band to a radio access network.

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Номер записи: 44

01-03-2012 дата публикации

Apparatus and method for transmitting and receiving data in a communication or broadcasting system using linear block code

Номер: US20120051460A1

Автор: Hong-Sil Jeong, Hyun-Koo Yang, Sung-Ryul Yun

Принадлежит: SAMSUNG ELECTRONICS CO LTD

Provided is a method for transmitting data in a communication or broadcasting system using a linear block code by generating a codeword by encoding input information data bits, interleaving the codeword; outputting modulation signal-constituting bits by bit-mapping the interleaved codeword using a bit-mapping table predetermined depending on a modulation scheme and a coding rate, outputting a modulation signal by modulating the modulation signal-constituting bits and transmitting the modulation signal via a transmit antenna.

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Номер записи: 45

01-03-2012 дата публикации

Apparatus for Transmitting and Receiving Data to Provide High-Speed Data Communication and Method Thereof

Номер: US20120051474A1

Автор: Deuk-Su Lyu, Eun-Young Choi, Hee-Jung Yu, Myung-Soon Kim, Sok-Kyu Lee, Taehyun Jeon

Принадлежит: Electronics and Telecommunications Research Institute ETRI

In the present invention, data generated from a source unit are distributed to at least one bandwidth; the data distributed to the respective bandwidths are encoded in order to perform an error correction; the encoded data are distributed to at least one antenna; a subcarrier is allocated to the data distributed to the respective antennas, and an inverse Fourier transform is performed; a short preamble and a first long preamble corresponding to the subcarrier are generated; a signal symbol is generated according to a data transmit mode; and a frame is generated by adding a second long preamble between the signal symbol and a data field for the purpose of estimating a channel of a subcarrier which is not used.

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Номер записи: 46

08-03-2012 дата публикации

Method of controlling communication

Номер: US20120056724A1

Автор: Takahiro Fushimi

Принадлежит: Riso Kagaku Corp

In a communication system including a RFID tag, which has a function to record information and a function to carry out wireless communication with an external device and is capable of transmission with using both FM modulation and AM modulation, and a reader/writer for writing and reading information onto and from the RFID tag via wireless communication, a transmission to transmit information from the RFID tag to the reader/writer is carried out with using one of the FM modulation and the AM modulation at the RFID tag. If the reader/writer fails to decode a signal transmitted with using the one of the FM modulation and the AM modulation, transmission with respect to the information is carried out with using the other of the FM modulation and the AM modulation at the RFID tag. In this manner, reading error of data sent from the RFID tag is prevented.

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Номер записи: 47

08-03-2012 дата публикации

method of pre-equalizing a data signal by time reversal in fdd

Номер: US20120057510A1

Автор: Dinh Thuy Phan Huy, Jean-Marie Chaufray

Принадлежит: France Telecom SA

Pre-equalizing a data signal transmitted in frequency division duplex by an originating entity having a set of originating antennas to a destination entity having a set of destination antennas, including: transmitting a first pilot by a destination antenna; the originating entity estimating a first impulse response of a first channel; an iterative step including an originating antenna transmitting a second pilot modulated by the first impulse response; the destination entity estimating and time reversing a combined impulse response of the first and second channels; the destination antenna transmitting a third pilot modulated by the time-reversed response; estimating a composite response of the channels; re-iterating the iterative step for some originating antennas; and re-iterating the steps of transmitting a first pilot, estimating the first response, and the iterative step for some destination antennas; and determining pre-equalization coefficients for the data signal from a combination of a set of composite impulse responses.

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Номер записи: 48

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: 49

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: 50

08-03-2012 дата публикации

MIMO OFDM System

Номер: US20120057661A1

Автор: Jack Harriman Winters, Nelson Ray Sollenberger, Ye Li

Принадлежит: AT&T Corp

A MIMO OFDM system includes a plurality of space-time encoders for encoding respective data blocks with independent space-time codes. The transformed data block signals are transmitted by a plurality of transmit antennas and received by a plurality of receive antennas. The received data is pre-whitened prior to maximum likelihood detection. In one embodiment, successive interference cancellation can be sued to improve system performance. Channel parameter estimation can be enhanced by weighting the channel impulse response estimates based upon a deviation from average.

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Номер записи: 51

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: 52

15-03-2012 дата публикации

Method for allocating resource in lte system

Номер: US20120063405A1

Автор: Jin Kyu Han, Joon Young Cho, Ju Ho Lee

Принадлежит: SAMSUNG ELECTRONICS CO LTD

The present invention relates to a fractional RB (Resource Block) allocation method which enables resource allocation in a unit smaller than RB to improve the capacity of VoIP (Voice over Internet Protocol) in an LTE (Long Term Evolution) system. That is, the present invention introduces a resource arrangement method which allows different users to share the same resource, without even using an SDMA, and a method for informing the fractional RB allocation and how to use the same. A method for introducing multiplexation into an RB and changing the RE arrangement is proposed to support the downlink fractional RB allocation. A method for changing the RE arrangement is also proposed to support the uplink fractional RB allocation. According to the present invention, to provide a consistent service with a small amount of traffic generated as in the VoIP, resources of a smaller amount than a single RB can be used for a terminal with a good channel state. In the present invention, the occupancy of resources for the terminals of an excellent channel state is reduced so that the capacity of the VoIP can be improved.

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Номер записи: 53

15-03-2012 дата публикации

System and Method for Channel State Information Feedback in Wireless Communications Systems

Номер: US20120063500A1

Автор: David Mazzarese, Jianguo Wang, Mattias Frenne, YANG Tang, Yongxing Zhou

Принадлежит: FutureWei Technologies Inc

A system and method for channel state information feedback in wireless communications systems are provided. A method for reporting channel information includes determining, at a user equipment, a channel information type for first channel information to be reported to a communications controller, determining the first channel information conditioned on previously reported channel information and on the channel information type, and reporting the first channel information, the channel information type, or a combination thereof, to the communications controller.

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Номер записи: 54

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: 55

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: 56

22-03-2012 дата публикации

System and method for pucch subband feedback signaling in a wireless network

Номер: US20120069917A1

Автор: Jianzhong Zhang, Lingjia Liu

Принадлежит: SAMSUNG ELECTRONICS CO LTD

A mobile station for use in a wireless network. The mobile station transmits feedback reports to a base station of the wireless network. The feedback reports comprise a first feedback report, a second feedback report and a third feedback report. The first feedback report includes a precoder type indication (PTI) value that indicates at least one of a period of the second feedback report and a period of the third feedback report. The PTI value indicates a ratio of the second feedback report period to the third feedback report period. The PTI value also indicates the selected feedback information contained in the second feedback report and the third feedback report.

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Номер записи: 57

22-03-2012 дата публикации

Communication apparatus and communication method

Номер: US20120069920A1

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

Принадлежит: Panasonic Corp

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

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Номер записи: 58

22-03-2012 дата публикации

CQI feedback mechanisms for distortion-aware link adaptation toward enhanced multimedia communications

Номер: US20120069927A1

Автор: Jeffrey R. Foerster, Minnie Ho, Ozgur OYMAN

Принадлежит: Intel Corp

Link adaptation parameters for encoding of a source are selected to minimize distortion between the source and a reconstructed source induced by transmission of the source over a multiple input multiple output (MIMO) channel. Such distortion-awareness and associated joint source-channel coding ideas to support link adaptation over MIMO channels may affect system architectures for MIMO systems. CQI feedback mechanisms may ensure that these distortion-aware MIMO link adaptation techniques are applicable for downlink channels, under different forms of link adaptation, including MS-controlled vs. BS-controlled link adaptation, long-term vs. dynamic link adaptation, and presence vs. absence of distortion-awareness at the BS, for different kinds of video coding including single-layer compression and layered compression.

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Номер записи: 59

22-03-2012 дата публикации

System and method for improving signaling channel robustness

Номер: US20120072808A1

Автор: Harri J. Pekonen, Heidi Himmannen

Принадлежит: Nokia Oyj

A system and method for improving signaling channel robustness. Additional error correction is provided for (L1) dynamic signaling that is carried in P2 symbols in such way that high time diversity can be provided. In other embodiments, transmitted services are scheduled such that services will rotate or “move” between frames, thereby ensuring that a first slot for a service is not always transmitted in the same frequency.

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Номер записи: 60

29-03-2012 дата публикации

Method for determining data rate and packet length in mobile wireless networks

Номер: US20120076010A1

Автор: Avinash Joshi, John M. Belcea, Yuechun Chu

Принадлежит: Motorola Inc

A method is provided to determine optimal data rate and packet length in mobile networks. The method directly determines the optimal packet length (L) and data rate (D), which allows fast convergence in the mobile channel. The method automatically identifies and quantifies channel conditions, as well as adjusts parameters according to changes of channel conditions. A variable (Channel condition Index (CCI)) is abstracted from simulations and then used to describe and quantify the impact of three components of channel conditions: signal-to-noise ratio (SNR), multipath environment and velocity. Based on packet completion rate (PCR) status, the channel condition is identified in terms of CCI value. Once CCI is identified, the model of effective throughput G is directly optimized to locate the best packet length (L) and data rate (D).

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Номер записи: 61

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: 62

29-03-2012 дата публикации

Signalling for digital broadcasting system

Номер: US20120076127A1

Автор: Alain Mourad, Ismael Gutierrez

Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method and apparatus for transmitting a plurality of data streams in a wireless broadcast system are provided. The method includes mapping the plurality of data streams onto a super-frame that includes a plurality of frames; inserting signalling information in a first signalling information field for assisting in the reception of a first number of said plurality of data streams for a given frame, the first number being less than or equal to a limit applicable to each of the plurality of frames; dependent on a number of data streams for the given frame being greater than the limit, inserting signalling information in a second signalling information field; inserting said first and second signalling information fields in a preamble section of said given frame; and transmitting the plurality of frames.

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Номер записи: 63

29-03-2012 дата публикации

Digital Television Transmitter/Receiver and Method of Processing Data in Digital Television Transmitter/Receiver

Номер: US20120076226A1

Автор: Byoung Gill Kim, Hyoung Gon Lee, In Hwan Choi, Jae Hyung Kim, Jong Moon Kim, Woo Chan Kim

Принадлежит: LG ELECTRONICS INC

A digital television (DTV) transmitter and a method of processing known data in the DTV transmitter are disclosed. The method of processing known data in a digital television (DTV) transmitter includes generating a known data sequence, trellis-encoding the known data sequence, the trellis-encoded known data sequence having upper, middle, and lower bits, wherein at least one of the upper, middle, and lower bits has an m-sequence property, and mapping the trellis-encoded known data sequence into one of 2-level, 4-level, and 8-level data sequences, wherein the mapped data sequence has substantially an m-sequence property, wherein a data sequence has an m-sequence property when a peak value among auto-correlation values of the data sequence having a length of N is 1 and all the off-peak auto-correlation values are −1/N.

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Номер записи: 64

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: 65

05-04-2012 дата публикации

Pmi feedback with codebook interpolation

Номер: US20120082190A1

Автор: Qinghua Li, Xiaogang Chen, Yuan Zhu

Принадлежит: Intel Corp

Various embodiments of this disclosure may describe apparatuses, methods, and systems for interpolation of precoding matrixes to increase feedback accuracy of the channel state information (CSI) feedback in a wireless communication network. Other embodiments may also be disclosed or claimed.

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Номер записи: 66

05-04-2012 дата публикации

Modified progressive edge-growth ldpc codes for ultra-high-speed serial optical transport

Номер: US20120084617A1

Автор: Ivan B. Djordjevic, Lei Xu, Ting Wang

Принадлежит: NEC Laboratories America Inc

Systems and methods enabling ultra-high-speed optical transport The systems and methods include receiving a modulated, encoded input stream. Channel impairments are removed using MAP equalization. Symbols are detected in the input stream to produce a stream of encoded data. The stream of encoded data is decoded with one or more low density parity check (LDPC) decoders that use an LDPC code built by modified progressive edge growth. The LDPC code is built by iteratively expanding trees from each variable node until all check nodes are connected to the respective variable node, while controlling both the local girth and the global girth of the code.

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Номер записи: 67

12-04-2012 дата публикации

Methods and apparatus for handling a signaling message that relates to transmission rate restrictions

Номер: US20120087239A1

Автор: Daniel Amerga, Masato Kitazoe, Preeti Srinivas Rao, Sanjay Kenchareddy, Srividhya Krishnamoorthy, Suresh Sanka

Принадлежит: Qualcomm Inc

A method for handling a signaling message that specifies transmission rate restrictions may include operating in a first state. The method may also include receiving the signaling message from a network. The signaling message may include an activation time, the transmission rate restrictions and the control duration. The method may also include receiving a state transition trigger to operate in a second state. The method may also include determining the user equipment's behavior regarding the transmission rate restrictions upon receiving the state transition trigger.

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Номер записи: 68

12-04-2012 дата публикации

Channel state information transmission method appraratus and system

Номер: US20120087382A1

Автор: Gong Zhang, Pei Xiao, Xun Yang, Zihuai Lin

Принадлежит: Huawei Technologies Co Ltd

A precoding method, a precoding apparatus, a Frequency Domain Equalization (FDE) method, and an FDE apparatus are provided in the embodiments of the present invention. The precoding method includes: performing offset modulation for a transmitting signal vector; calculating a precoding matrix according to the offset-modulated transmitting signal vector and a receiver decision signal vector, where the precoding matrix is used for performing precoding for the transmitting signal vector; and performing precoding for the transmitting signal vector according to the precoding matrix. Linear precoding is performed by using the offset-modulated signal on the transmitter, and therefore, the interference caused by multiple antennas and multipath propagation is reduced, the system BER is reduced, and the complexity of implementation is low.

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Номер записи: 69

12-04-2012 дата публикации

Apparatus and method for applying unequal error protection during wireless video transmission

Номер: US20120087407A1

Автор: Meir Feder, Shay Freundlich, Zvi Reznic

Принадлежит: AMIMON LTD

A method for wireless transmission of video including component data bytes representing components of a video block includes applying transmission bit coding adapted to provide relatively greater error protection to wireless transmission bits of a wireless transmission frame corresponding to bits of the component data byte which are more visually significant than to those transmission bits of the transmission frame corresponding to bits of the component data byte which are less visually significant.

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Номер записи: 70

12-04-2012 дата публикации

Heterogeneous network (hetnet) user equipment (ue) radio resource management (rrm) measurements

Номер: US20120088516A1

Автор: Aleksandar Damnjanovic, Durga Prasad Malladi, Osok Song, Peter Gaal, Tao Luo, Tingfang JI

Принадлежит: Qualcomm Inc

Methods and apparatus for performing radio resource management (RRM) measurements in a heterogeneous network (HetNet) are provided in an effort to prevent failure of RRM measurement procedures in a dominant interference scenario. Several alternatives are provided for determining particular resources (e.g., subframes) to use for performing the RRM measurements, wherein the particular resources are based on cooperative resource partitioning between cells of the HetNet, wherein the cells may be of different types (e.g., macro, pico, or femto cells). These alternatives include, for example: (1) intra-frequency or intra-RAT (radio access technology) alternatives, which may involve transmitting resource partitioning information (RPI) in or deriving non-serving cell RPI based on the serving cell's RPI, as well as (2) inter-frequency or inter-RAT alternatives, where the RRM measurements may be performed during a measurement gap.

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Номер записи: 71

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: 72

12-04-2012 дата публикации

Rate adjustment apparatus and a rate adjustment method

Номер: US20120089891A1

Автор: Shunji Miyazaki

Принадлежит: Fujitsu Ltd

A rate adjustment apparatus includes a calculating section to calculate a number of outputs where bits of input data are sequentially output when a number of times of puncturing of the input data to be punctured is smaller than a number of remaining bits after puncturing, and a processing section to sequentially output bits of the input data and puncture the bits of the input data based on the number of outputs calculated by the calculating section.

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Номер записи: 73

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: 74

19-04-2012 дата публикации

Transmission Apparatus Reception Apparatus and Communication System

Номер: US20120096336A1

Автор: Hiroki Takahashi, Jungo Goto, Kazunari Yokomakura, Osamu Nakamura, Seiichi Sampei, Shinichi Miyamoto, Shinsuke Ibi, Yasuhiro Hamaguchi

Принадлежит: Individual

To improve performance of a decoder even in a system with the coder configuration determined by inserting a doping bit sequence known between a transmission apparatus and a reception apparatus in an information bit sequence to transmit, the transmission apparatus is a transmission apparatus that transmits radio signals to the reception apparatus, and is provided with a doping section 23 that inserts a doping bit sequence which is known between the transmission apparatus and the reception apparatus in an information bit sequence to transmit to the reception apparatus, coding sections 11 a , 11 b that performerror-correcting coding on a bit sequence with the doping bit sequence inserted therein, a puncturing section that performs puncturing on a bit sequence subjected to the error-correcting coding, and a wireless transmission section 24 that transmits a bit sequence subjected to the puncturing.

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Номер записи: 75

26-04-2012 дата публикации

Estimating sparse mimo channels having common support

Номер: US20120099435A1

Автор: Ali Hormati, Martin Vetterli, Sundeep Rangan, Yann Barbotin

Принадлежит: Qualcomm Inc

According to a first aspect of the present invention there is provided a method of estimating, jointly, a set of multipath channels having a common path support, the method comprising the steps of, estimating jointly the common path support of the set of multipath channels using a spectral estimation technique, estimating path amplitudes, for each channel in the set of multipath channels, using the estimation of the common path support, to obtain an estimate of the set of multipath channels.

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Номер записи: 76

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: 77

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: 78

03-05-2012 дата публикации

Method and apparatus for communication with shortened signal formats

Номер: US20120106372A1

Автор: Aleksandar Damnjanovic, Juan Montojo, Peter Gaal, Wanshi Chen

Принадлежит: Qualcomm Inc

Techniques for addressing high interference observed by a receiver in a wireless communication system are disclosed. The receiver may observe different interference power levels across a transmission symbol. In an aspect, the receiver applies different weights to different portions of the transmission symbol to account for fluctuation of interference power across the transmission symbol. In another aspect, a transmitter may send a transmission symbol such that a receiver can ignore a portion of a symbol period with high interference. In one design, the transmitter generates a transmission symbol including at least two copies of a signal component. The transmitter transmits at least one copy of the signal component in a portion of the symbol period in which the receiver does not observe high interference. The receiver processes the at least one copy of the signal component to recover data sent in the transmission symbol.

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Номер записи: 79

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: 80

03-05-2012 дата публикации

Managing Multicast Membership in Wireless LANs

Номер: US20120106547A1

Автор: Ramsundar Janakiraman

Принадлежит: Aruba Networks Inc

Processing of MLD control packets in an access point (AP) connected to a digital network. According to the present invention, an AP in a network converts MLD queries from multicast to unicast and sends these unicast packets to each client of the AP. These MLD query packets may be filtered or restricted by per-user client rules These MLD query packets may also be tagged as high priority packets to speed their delivery. The AP also suppresses the retransmission of MLD Join packets to clients of the AP.

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Номер записи: 81

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: 82

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: 83

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: 84

10-05-2012 дата публикации

Multiple-input multiple-output signal detectors based on relaxed lattice reduction

Номер: US20120114058A1

Автор: Wai Ho Mow, Ying Hung Gan

Принадлежит: Hui Long Fund LLC

System and methodologies for reduced-complexity signal detection and decoding in a wireless communication system are provided herein. Systems and methodologies presented herein can utilize a relaxed form of the Lenstra-Lenstra-Lovasz (LLL) lattice reduction algorithm to reduce the complexity of lattice reduction operations in the context of MIMO detection. Additional systems and methodologies presented herein can apply lattice reduction in the context of a maximum likelihood (ML) detector for spherical or elliptical lattice space-time (LAST) codes.

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Номер записи: 85

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: 86

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: 87

17-05-2012 дата публикации

Power optimized demodulator front end (demfront) receiver subsystem

Номер: US20120120860A1

Автор: FENG Lu, Guang Xie, Jimmy C. Chui, Ravi Gopalan

Принадлежит: Qualcomm Inc

In a cellular communication system, apparatus and methods relating to a power-optimized demodulator front end (demfront) receiver subsystem of a user equipment (UE) can reduce power utilization by optimizing the operation of the demfront receiver subsystem. For example, in an aspect, the apparatus and methods include enabling a first receiver of a device for receiving a control channel on a downlink from a node, determining that the control channel schedules the device to receive data on the downlink, enabling a second receiver of the device that consumes more power than the first receiver to receive the data on the downlink, and re-enabling the first receiver for receiving the control channel on the downlink subsequent to receiving the data.

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Номер записи: 88

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: 89

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: 90

17-05-2012 дата публикации

Wireless communication device and wireless communication method

Номер: US20120120907A1

Автор: Takaaki Kishigami

Принадлежит: Panasonic Corp

A bias of reception qualities between spatial streams to a plurality of terminal devices is suppressed in a multiuser MIMO transmission. A wireless communication device according to the invention is one for performing a spatial multiplexing transmission to the plurality of terminal devices, that includes an additional data area setting section that allocates, as an additional data area, a part of a resource allocation area to which no data addressed to each terminal device of the plurality of terminal devices is allocated among resource allocation areas for the spatial multiplexing transmission which are allocated to each terminal device of the plurality of terminal devices, an additional data generator that generates additional data corresponding to the additional data area allocated by the additional data area setting section, and a transmitter that transmits the data which is addressed to each of the plurality of terminal devices and the additional data.

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Номер записи: 91

17-05-2012 дата публикации

Apparatus for Transmitting and Receiving Data to Provide High-Speed Data Communication and Method Thereof

Номер: US20120121040A1

Автор: Deuk-Su Lyu, Eun-Young Choi, Hee-Jung Yu, Myung-Soon Kim, Sok-Kyu Lee, Taehyun Jeon

Принадлежит: Electronics and Telecommunications Research Institute ETRI

In the present invention, data generated from a source unit are distributed to at least one bandwidth; the data distributed to the respective bandwidths are encoded in order to perform an error correction; the encoded data are distributed to at least one antenna; a subcarrier is allocated to the data distributed to the respective antennas, and an inverse Fourier transform is performed; a short preamble and a first long preamble corresponding to the subcarrier are generated; a signal symbol is generated according to a data transmit mode; and a frame is generated by adding a second long preamble between the signal symbol and a data field for the purpose of estimating a channel of a subcarrier which is not used.

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Номер записи: 92

17-05-2012 дата публикации

Systems and methods of providing error tolerant robust simplex wireless data for systems employing time correlated data transfer

Номер: US20120124452A1

Автор: Darryl I. PARMET, Jamal Haque, Mark D. DuBois

Принадлежит: Honeywell International Inc

Systems and methods of providing error tolerant robust simplex wireless data for systems employing time correlated data transfer are provided. In one embodiment, a system comprises: sensors that produce samples of time correlated data; and a node coupled to the sensors by a wireless link. The link comprises a primary stream for simplex transmission of data packets, and a secondary stream for simplex transmission of delayed data packets, the delayed data packets a delayed retransmission of the time correlated data. When the node receives a first data packet from a first sensor via the primary stream, the data receiving node check validity. When the first data packet is corrupted, the node validity checks a second data packet received via the secondary stream. When both packets contain corrupted data, the node builds a reconstructed plurality of sequential time correlated data samples based on non-corrupted data samples from within the data packets.

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Номер записи: 93

17-05-2012 дата публикации

Coding apparatus, coding method, decoding apparatus, decoding method, program and transmission system

Номер: US20120124455A1

Автор: Hideyuki Matsumoto, Hiroshi Shiroshita, Kazuhisa Funamoto, Kenichi Maruko, Naohiro Koshisaka, Tatsuo Shinbashi, Tatsuya SUGIOKA

Принадлежит: Sony Corp

Disclosed herein is a coding apparatus, including: a calculation section adapted to calculate, based on information of a transmission object, a linear code to be used for error detection of the information; a production section adapted to produce coded data including a plurality of sets of the information and the linear code calculated by the calculation section; and a transmission section adapted to transmit the coded data to a reception apparatus.

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Номер записи: 94

24-05-2012 дата публикации

Method and device for operating a precoded mimo system

Номер: US20120128044A1

Автор: Jayesh H. Kotecha, Taeyoon Kim

Принадлежит: Individual

A method is provided for generating precoder data ( 600 ), comprising: obtaining transmit power data indicative of a transmit power of a plurality of multiple-input/multiple-output signals ( 610 ); obtaining signal quality data, the signal quality data including at least one measure of a quality of the plurality of multiple-input/multiple-output signals ( 620, 630 ); obtaining channel data with respect to a wireless channel, the channel data including a measure of respective channel parameters of each of a plurality of channel paths in the wireless channel ( 620, 630 ); constraining one or more system performance parameters ( 640 ); and determining first and second precoder diagonal values (w A and w B ) based on the signal quality data, the transmit power data, the channel data, and the one or more constrained system performance parameters ( 650 ).

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Номер записи: 95

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: 96

24-05-2012 дата публикации

Error correction code decoding device

Номер: US20120131410A1

Автор: Masao Orio

Принадлежит: Renesas Electronics Corp

An error correction code decoding device comprises a first memory having a memory space like a matrix, a first decoding unit writing a first information into the first memory along a first direction, a second decoding unit reading the first information from the first memory along a second direction and a plurality of turbo decoders included in the second decoding unit, and differentiating access timing to a same row or same column with each other.

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Номер записи: 97

24-05-2012 дата публикации

Modulation method and device implementing a differential modulation, corresponding demodulation method and device, signal and computer software products

Номер: US20120131411A1

Автор: Ghaya Rekaya-Ben Othman, Sami Mumtaz, Yves Jaouen

Принадлежит: Telecom ParisTech

A method and apparatus are provided for modulating a binary source sequence including of a plurality of source words to generate modulated symbols. The method implements error-correction encoding of the plurality of source words, implementing one or more encoding modules, each implementing a separate error-correction code to generate a plurality of code words, the source words being encoded in series. The code words are interlaced to generate an interlaced sequence. The interlaced sequence is differentially modulated to generate modulated symbols. Each code word is broken down into at least one group with a number of bits equal to the base-2 logarithm of a number of states of a modulation implemented by the step of differentially modulating. The interlacing step distributes the groups such that two adjacent groups in the interlaced sequence belong to separate code words.

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Номер записи: 98

31-05-2012 дата публикации

Radio transmission control method, radio receiver apparatus, and radio transmitter apparatus

Номер: US20120134437A1

Автор: Akinori Taira, Kenji Suto, Tomoaki Otsuki, Yoshitaka Hara

Принадлежит: Mitsubishi Electric Corp

Conventionally, if the number of transmission antennas is greater than that of reception antennas, different signals simultaneously transmitted from the transmission antennas cannot be separated from one another at the receiving end, resulting in a significant degradation of received-signal quality. A transmitter and a receiver each have a plurality of antennas. The transmitter transmits a pilot signal. The receiver receives the pilot signal, calculates transmission-related information corresponding to the pilot signal, selects, based on this calculated information, a transmission signal to be used by the transmitter, and notifies the transmitter of the selected signal. The transmitter selects, from the informed transmission signal, transmission antennas and uses the selected antennas to transmit information signals, so that a signal separation can be easily performed at the receiving end.

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Номер записи: 99

07-06-2012 дата публикации

Bandwidth information notification method, service processing method, network node and communication system

Номер: US20120140625A1

Автор: HAO Long

Принадлежит: Huawei Technologies Co Ltd

A bandwidth information notification method includes: obtaining current bandwidth information of a link; and sending the bandwidth information to an endpoint of a service connection through the service connection which passes through the link. The endpoint of the service connection can adjust a service policy according to the bandwidth information. An endpoint of a service connection which passes through a microwave link may obtain bandwidth information of the microwave link, where the bandwidth information is obtained after adaptive modulation of the microwave link.

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Номер записи: 100