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BRPI0807108B1 - transmissão mimo com precodificação dependente de classificação - Google Patents

transmissão mimo com precodificação dependente de classificação Download PDF

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Publication number
BRPI0807108B1
BRPI0807108B1 BRPI0807108A BRPI0807108A BRPI0807108B1 BR PI0807108 B1 BRPI0807108 B1 BR PI0807108B1 BR PI0807108 A BRPI0807108 A BR PI0807108A BR PI0807108 A BRPI0807108 A BR PI0807108A BR PI0807108 B1 BRPI0807108 B1 BR PI0807108B1
Authority
BR
Brazil
Prior art keywords
precoding
matrix
rating
transmission
transmitter
Prior art date
Application number
BRPI0807108A
Other languages
English (en)
Inventor
Kim Byoung-Hoon
Xu Hao
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of BRPI0807108A2 publication Critical patent/BRPI0807108A2/pt
Publication of BRPI0807108B1 publication Critical patent/BRPI0807108B1/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03343—Arrangements at the transmitter end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03426—Arrangements for removing intersymbol interference characterised by the type of transmission transmission using multiple-input and multiple-output channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)

Abstract

transmissão mimo com precodificação dependente de classificação são descritas técnicas para realizar precodificação de classificação dependente para uma transmissão mimo. cada classificação pode ser associada a um conjunto de pelo menos um vetor ou matriz de precodificação que pode proporcionar um bom desempenho para essa classificação. um transmissor pode obter um vetor de precodificação para uma transmissão de classificação-1 a partir de um primeiro conjunto contendo pelo menos um vetor coluna de uma matriz unitária, por exemplo, uma matriz de fourier. o transmissor pode realizar precodificação para a transmissão de classificação-1 com base no vetor de precodificação. o transmissor pode obter uma matriz de precodificação para uma transmissão de classificação-2 a partir de um segundo conjunto contendo uma matriz identidade. o transmissor pode realizar precodificação para a transmissão de classificação-2 com base na matriz de precodificação. para a transmissão de classificação-2, o transmissor pode selecionar a matriz identidade como a matriz de precodificação se um canal mimo se assemelhar a um canal diagonal (que pode ser determinado com base nas configurações de antena) e por outro lado pode selecionar a matriz unitária.
BRPI0807108A 2007-02-09 2008-02-08 transmissão mimo com precodificação dependente de classificação BRPI0807108B1 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US88925507P 2007-02-09 2007-02-09
US60/889,255 2007-02-09
US12/027,921 2008-02-07
US12/027,921 US7995671B2 (en) 2007-02-09 2008-02-07 Multiple-input multiple-output (MIMO) transmission with rank-dependent precoding
PCT/US2008/053512 WO2008098225A2 (en) 2007-02-09 2008-02-08 Mimo transmission with rank-dependent precoding

Publications (2)

Publication Number Publication Date
BRPI0807108A2 BRPI0807108A2 (pt) 2014-05-06
BRPI0807108B1 true BRPI0807108B1 (pt) 2020-04-28

Family

ID=39682456

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0807108A BRPI0807108B1 (pt) 2007-02-09 2008-02-08 transmissão mimo com precodificação dependente de classificação

Country Status (16)

Country Link
US (2) US7995671B2 (pt)
EP (1) EP2127182B1 (pt)
JP (1) JP5096497B2 (pt)
KR (1) KR101119643B1 (pt)
CN (1) CN101606342B (pt)
AU (1) AU2008212797B2 (pt)
BR (1) BRPI0807108B1 (pt)
CA (1) CA2676107C (pt)
ES (1) ES2715276T3 (pt)
HU (1) HUE042333T2 (pt)
IL (2) IL199820A (pt)
MX (1) MX2009007945A (pt)
MY (1) MY154508A (pt)
RU (1) RU2435322C2 (pt)
TW (1) TWI394411B (pt)
WO (1) WO2008098225A2 (pt)

Families Citing this family (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7852951B2 (en) * 2005-09-30 2010-12-14 Intel Corporation Multicarrier receiver for multiple-input multiple-output wireless communication systems and method
US7995671B2 (en) 2007-02-09 2011-08-09 Qualcomm Incorporated Multiple-input multiple-output (MIMO) transmission with rank-dependent precoding
CA2677065C (en) * 2007-02-13 2016-06-28 Telefonaktiebolaget Lm Ericsson (Publ) Methods and systems for combined cyclic delay diversity and precoding of radio signals
PT2145400E (pt) * 2007-04-30 2013-05-21 Ericsson Telefon Ab L M Método e montagem para adaptar uma transmissão de múltiplas antenas
US8107544B2 (en) * 2007-05-16 2012-01-31 Motorola Mobility, Inc. Method and apparatus for feedback in closed loop transmitting
US8325852B2 (en) * 2007-06-08 2012-12-04 Samsung Electronics Co., Ltd. CDD precoding for open loop SU MIMO
JP4729537B2 (ja) * 2007-06-19 2011-07-20 株式会社エヌ・ティ・ティ・ドコモ 基地局装置および送信方法
WO2009045069A2 (en) * 2007-10-03 2009-04-09 Lg Electronics Inc. Optimizing transmission for broadcast multicast service
WO2009106090A1 (en) * 2008-02-25 2009-09-03 Telefonaktiebolaget Lm Ericsson (Publ) A method of and a device for precoding transmit data signals in a wireless mimo communication system
EP2159950B1 (en) 2008-08-11 2016-04-27 LG Electronics Inc. Method and apparatus for transmitting uplink signals using multi antenna
KR20100019948A (ko) * 2008-08-11 2010-02-19 엘지전자 주식회사 공간 다중화 기법을 이용한 데이터 전송방법
KR20100019929A (ko) 2008-08-11 2010-02-19 엘지전자 주식회사 Ｓｃ－ｆｄｍａ ｍｉｍｏ 코드북 설계 방법
US9608780B2 (en) * 2008-09-23 2017-03-28 Qualcomm Incorporated Transmit diversity for SC-FDMA
WO2010041868A2 (ko) * 2008-10-08 2010-04-15 엘지전자주식회사 다중 안테나 시스템에서 데이터 전송 방법 및 장치
WO2010055391A1 (en) * 2008-11-12 2010-05-20 Telefonaktiebolaget L M Ericsson A method and a transmitter in a wireless communication network
KR101707680B1 (ko) * 2008-12-21 2017-02-17 엘지전자 주식회사 무선 통신 시스템에서 정보 전송 장치 및 방법
CN102273115B (zh) 2009-01-07 2015-06-17 松下电器（美国）知识产权公司 无线通信设备、无线通信系统和无线通信方法
US8644409B2 (en) * 2009-02-11 2014-02-04 Qualcomm Incorporated Method and apparatus for modulation and layer mapping in a wireless communication system
KR101608779B1 (ko) * 2009-02-13 2016-04-20 엘지전자 주식회사 2안테나 시스템에서 상향링크 프리코딩 수행 방법
KR20100097584A (ko) * 2009-02-26 2010-09-03 엘지전자 주식회사 다중안테나 시스템에서 데이터 전송 장치 및 방법
KR20100099038A (ko) * 2009-03-02 2010-09-10 엘지전자 주식회사 4 안테나 시스템에서 상향링크 프리코딩 수행 방법
TWI517620B (zh) * 2009-03-17 2016-01-11 皇家飛利浦電子股份有限公司 在多輸入多輸出（ｍｉｍｏ）網路中通信的方法及裝置
US8660060B2 (en) * 2009-03-26 2014-02-25 Futurewei Technologies, Inc. System and method for communications using spatial multiplexing with incomplete channel information
KR101647377B1 (ko) * 2009-05-22 2016-08-10 엘지전자 주식회사 무선 통신 시스템에서 안테나 전송 전력에 따른 적응적인 다중 안테나 전송 방법 및 장치
JP5257259B2 (ja) * 2009-06-17 2013-08-07 富士通株式会社 受信装置、移動端末、通信システムおよび通信方法
CN102025457B (zh) * 2009-09-09 2013-04-17 华为技术有限公司 协作通信的方法及基站
TWI426726B (zh) * 2009-09-25 2014-02-11 Fujitsu Ltd A precoding matrix codebook generating method and apparatus
JP5418685B2 (ja) * 2009-09-25 2014-02-19 富士通株式会社 プリコーディング行列コードブックを生成する方法及び装置
CN102668435B (zh) 2009-11-17 2015-09-16 索尼公司 在提供递增冗余的广播系统中广播数据的发送机和接收机
WO2011061030A1 (en) * 2009-11-17 2011-05-26 Sony Corporation Receiver and receiving method for receiving data in a broadcasting system using incremental redundancy
US8526519B2 (en) * 2009-12-14 2013-09-03 Texas Instruments Incorporated Multi-rank precoding matrix indicator (PMI) feedback in a multiple-input multiple-output (MIMO) system
JP2013516120A (ja) * 2009-12-28 2013-05-09 富士通株式会社 プリコーディング行列コードブックを生成する方法及び装置
CN102118232A (zh) * 2009-12-31 2011-07-06 中兴通讯股份有限公司 分层实现预编码的方法、装置及系统
CN102088340B (zh) * 2010-01-11 2013-04-17 电信科学技术研究院 一种多天线系统发送、接收信息的方法及装置
WO2011097971A1 (zh) * 2010-02-09 2011-08-18 富士通株式会社 生成预编码矩阵码书的方法和装置及预编码矩阵指定方法
JP5643569B2 (ja) * 2010-08-04 2014-12-17 シャープ株式会社 制御局装置
US9014287B2 (en) 2010-08-24 2015-04-21 Qualcomm Incorporated Open loop MIMO mode for LTE-A uplink
US8699621B2 (en) * 2010-10-04 2014-04-15 Nec Laboratories America, Inc. Precoding selection for retransmission in uplink MIMO hybrid ARQ
US8934560B2 (en) * 2010-10-07 2015-01-13 Qualcomm Incorporated Method and apparatus of using CDD like schemes with UE-RS based open loop beamforming
US9219534B2 (en) * 2010-10-12 2015-12-22 Lg Electronics Inc. Method and device for signal transmission in a multi-node system
US8948305B2 (en) 2010-11-16 2015-02-03 Panasonic Intellectual Property Corporation Of America Transmission method, transmission apparatus, reception method and reception apparatus
US8724728B2 (en) 2010-12-01 2014-05-13 Samsung Electronics Co., Ltd. Method of generating adaptive codebook and multiple input multiple output communication system using the adaptive codebook
CN103430459A (zh) * 2011-02-07 2013-12-04 英特尔公司 来自多个基础设施节点的传送的共定相
RU2593381C2 (ru) 2011-02-18 2016-08-10 Сан Пэтент Траст Способ формирования сигналов и устройство формирования сигналов
WO2012129810A1 (en) * 2011-03-31 2012-10-04 Huawei Technologies Co., Ltd. Method in a wireless communication system
EP3787196B1 (en) 2011-04-19 2022-06-01 Sun Patent Trust Transmission and reception method and apparatus
US8948293B2 (en) * 2011-04-20 2015-02-03 Texas Instruments Incorporated Downlink multiple input multiple output enhancements for single-cell with remote radio heads
US8675762B2 (en) * 2011-05-02 2014-03-18 Alcatel Lucent Method of transforming pre-coded signals for multiple-in-multiple-out wireless communication
CN102882657B (zh) * 2011-07-15 2018-01-23 瑞典爱立信有限公司 用于上行链路秩自适应的方法、设备和系统
US8743988B2 (en) 2011-07-29 2014-06-03 Telefonaktiebolaget Lm Ericsson (Publ) Transmission mode adaptation in a wireless network
KR101873596B1 (ko) * 2012-01-16 2018-08-02 삼성전자주식회사 무선통신 시스템에서 데이터 송신 방법 및 장치
EP2624475B1 (en) * 2012-01-31 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Combined Power Transmission
CN103312397A (zh) * 2012-03-16 2013-09-18 华为技术有限公司 一种预编码方法、系统和装置
US9397738B2 (en) * 2012-05-17 2016-07-19 Qualcomm Incorporated Codebook and feedback design for high order MIMO
US20150116162A1 (en) 2013-10-28 2015-04-30 Skycross, Inc. Antenna structures and methods thereof for determining a frequency offset based on a differential magnitude
US10009075B2 (en) * 2013-11-27 2018-06-26 Lg Electronics Inc. Operation for 3D beam forming in a wireless communication system
US9680542B2 (en) * 2013-12-26 2017-06-13 Telefonaktiebolaget Lm Ericsson (Publ) Precoding in a wireless communication network
US10367678B2 (en) * 2014-08-12 2019-07-30 Dell Products Lp Mechanism for rapid network failure detection for faster switch-over in server-to-server applications
EP3276915B1 (en) * 2015-05-21 2020-02-05 Huawei Technologies Co. Ltd. Signal transmission method and device
DE112015006626T5 (de) 2015-06-17 2018-03-08 Intel Corporation Verfahren zum bestimmen einer vorcodiermatrix und vorcodiermodul
WO2018003614A1 (ja) * 2016-06-30 2018-01-04 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ 送信装置および送信方法
US10110357B2 (en) * 2016-11-03 2018-10-23 Industrial Technology Research Institute Cooperative communication method and system
TWI633802B (zh) * 2016-11-03 2018-08-21 財團法人工業技術研究院 合作通訊方法及系統
US10020839B2 (en) 2016-11-14 2018-07-10 Rampart Communications, LLC Reliable orthogonal spreading codes in wireless communications
US10044420B2 (en) 2016-12-15 2018-08-07 Hong Kong Applied Science and Technology Research Institute Company Limited Closed-loop massive MIMO system architecture
CN108809392B (zh) * 2017-04-26 2020-07-28 华为技术有限公司 数据发送方法、数据接收方法、网络设备和终端设备
US10924240B2 (en) * 2019-03-26 2021-02-16 Qualcomm Incorporated Sounding reference signal transmission to indicate a virtual antenna port
US11569886B2 (en) * 2019-04-01 2023-01-31 Qualcomm Incorporated Network-sensitive transmit diversity scheme
US10873361B2 (en) 2019-05-17 2020-12-22 Rampart Communications, Inc. Communication system and methods using multiple-in-multiple-out (MIMO) antennas within unitary braid divisional multiplexing (UBDM)
US10917148B2 (en) 2019-07-01 2021-02-09 Rampart Communications, Inc. Systems, methods and apparatus for secure and efficient wireless communication of signals using a generalized approach within unitary braid division multiplexing
US11641269B2 (en) 2020-06-30 2023-05-02 Rampart Communications, Inc. Modulation-agnostic transformations using unitary braid divisional multiplexing (UBDM)
US11050604B2 (en) 2019-07-01 2021-06-29 Rampart Communications, Inc. Systems, methods and apparatuses for modulation-agnostic unitary braid division multiplexing signal transformation
US10833749B1 (en) * 2019-07-01 2020-11-10 Rampart Communications, Inc. Communication system and method using layered construction of arbitrary unitary matrices
US11025470B2 (en) 2019-07-01 2021-06-01 Rampart Communications, Inc. Communication system and method using orthogonal frequency division multiplexing (OFDM) with non-linear transformation
US10951442B2 (en) 2019-07-31 2021-03-16 Rampart Communications, Inc. Communication system and method using unitary braid divisional multiplexing (UBDM) with physical layer security
US10735062B1 (en) 2019-09-04 2020-08-04 Rampart Communications, Inc. Communication system and method for achieving high data rates using modified nearly-equiangular tight frame (NETF) matrices
US10965352B1 (en) 2019-09-24 2021-03-30 Rampart Communications, Inc. Communication system and methods using very large multiple-in multiple-out (MIMO) antenna systems with extremely large class of fast unitary transformations
CN112838999B (zh) * 2019-11-25 2023-03-10 上海华为技术有限公司 一种信号调制方法以及装置
US11159220B2 (en) 2020-02-11 2021-10-26 Rampart Communications, Inc. Single input single output (SISO) physical layer key exchange
WO2021171069A1 (en) * 2020-02-27 2021-09-02 Zeku Inc. Multiple-input and multiple-output detection based on transmitted signal streams permutation

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69918607T2 (de) * 1998-03-05 2005-07-21 Solvay Solexis, Inc., Wilmington Witterungsbeständige Beschichtungszusammensetzungen aus Polyvinylidenfluorid,die Polymethylmethacrylat enthalten
US6785341B2 (en) 2001-05-11 2004-08-31 Qualcomm Incorporated Method and apparatus for processing data in a multiple-input multiple-output (MIMO) communication system utilizing channel state information
US20030161828A1 (en) 2002-02-19 2003-08-28 Abbott Gmbh & Co. Kg Use of TNF antagonists as drugs for the treatment of patients with an inflammatory reaction and without suffering from total organ failure
US6862271B2 (en) 2002-02-26 2005-03-01 Qualcomm Incorporated Multiple-input, multiple-output (MIMO) systems with multiple transmission modes
US7103325B1 (en) 2002-04-05 2006-09-05 Nortel Networks Limited Adaptive modulation and coding
GB0212165D0 (en) 2002-05-27 2002-07-03 Nokia Corp A wireless system
US7242724B2 (en) * 2003-07-16 2007-07-10 Lucent Technologies Inc. Method and apparatus for transmitting signals in a multi-antenna mobile communications system that compensates for channel variations
GB0414889D0 (en) * 2004-07-02 2004-08-04 Qinetiq Ltd Multiple-input multiple-output communications system
US7894548B2 (en) 2004-09-03 2011-02-22 Qualcomm Incorporated Spatial spreading with space-time and space-frequency transmit diversity schemes for a wireless communication system
US8064327B2 (en) 2005-05-04 2011-11-22 Samsung Electronics Co., Ltd. Adaptive data multiplexing method in OFDMA system and transmission/reception apparatus thereof
US20070071147A1 (en) * 2005-06-16 2007-03-29 Hemanth Sampath Pseudo eigen-beamforming with dynamic beam selection
US20070099578A1 (en) * 2005-10-28 2007-05-03 Kathryn Adeney Pre-coded diversity forward channel transmission system for wireless communications systems supporting multiple MIMO transmission modes
US7917176B2 (en) * 2006-02-14 2011-03-29 Nec Laboratories America, Inc. Structured codebook and successive beamforming for multiple-antenna systems
US7949318B2 (en) * 2007-02-05 2011-05-24 Nec Laboratories America, Inc. Multi-rank beamforming precoding apparatus and method
CN101611567A (zh) 2007-01-12 2009-12-23 Lm爱立信电话有限公司 使用块对角矩阵进行预编码的方法
US7916621B2 (en) * 2007-02-05 2011-03-29 Samsung Electronics Co., Ltd. MIMO control signaling in a wireless communication system
US7995642B2 (en) * 2007-02-05 2011-08-09 Samsung Electronics Co., Ltd. Precoding signaling in a MIMO wireless communication system
US8780771B2 (en) * 2007-02-06 2014-07-15 Qualcomm Incorporated Cyclic delay diversity and precoding for wireless communication
US7995671B2 (en) 2007-02-09 2011-08-09 Qualcomm Incorporated Multiple-input multiple-output (MIMO) transmission with rank-dependent precoding

Also Published As

Publication number Publication date
CA2676107A1 (en) 2008-08-14
US7995671B2 (en) 2011-08-09
KR101119643B1 (ko) 2012-05-15
EP2127182B1 (en) 2018-12-26
CA2676107C (en) 2013-02-19
WO2008098225A2 (en) 2008-08-14
WO2008098225A3 (en) 2008-12-11
JP5096497B2 (ja) 2012-12-12
TWI394411B (zh) 2013-04-21
IL199820A (en) 2014-08-31
US20080192849A1 (en) 2008-08-14
AU2008212797B2 (en) 2011-10-13
IL225592A0 (en) 2013-06-27
EP2127182A2 (en) 2009-12-02
JP2010518763A (ja) 2010-05-27
CN101606342B (zh) 2013-10-16
MY154508A (en) 2015-06-30
RU2009133776A (ru) 2011-03-20
US20110280342A1 (en) 2011-11-17
HUE042333T2 (hu) 2019-06-28
ES2715276T3 (es) 2019-06-03
CN101606342A (zh) 2009-12-16
BRPI0807108A2 (pt) 2014-05-06
IL199820A0 (en) 2010-04-15
MX2009007945A (es) 2009-08-18
US8503567B2 (en) 2013-08-06
TW200849905A (en) 2008-12-16
AU2008212797A1 (en) 2008-08-14
KR20090110868A (ko) 2009-10-22
RU2435322C2 (ru) 2011-11-27
IL225592A (en) 2017-10-31

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