JP5404940B2 - ワイヤレス通信システム、基地局、端末、およびコードブック生成方法 - Google Patents

ワイヤレス通信システム、基地局、端末、およびコードブック生成方法 Download PDF

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JP5404940B2
JP5404940B2 JP2012557387A JP2012557387A JP5404940B2 JP 5404940 B2 JP5404940 B2 JP 5404940B2 JP 2012557387 A JP2012557387 A JP 2012557387A JP 2012557387 A JP2012557387 A JP 2012557387A JP 5404940 B2 JP5404940 B2 JP 5404940B2
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codebook
base station
basic
phase offset
precoding
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JP2013522988A5 (en, 2012
JP2013522988A (ja
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フイ トン
正幸 星野
ミン スー
正悟 中尾
大地 今村
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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    • 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
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • 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
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • 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
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • 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
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0478—Special codebook structures directed to feedback optimisation
    • 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
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0634—Antenna weights or vector/matrix coefficients
    • 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
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0641—Differential feedback
    • 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
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0658—Feedback reduction
    • H04B7/0663—Feedback reduction using vector or matrix manipulations
    • 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
    • H04L25/03891—Spatial equalizers
    • H04L25/03898—Spatial equalizers codebook-based design
    • H04L25/03904—Spatial equalizers codebook-based design cooperative design, e.g. exchanging of codebook information between base stations
    • 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
    • H04L25/03891—Spatial equalizers
    • H04L25/03898—Spatial equalizers codebook-based design
    • H04L25/0391—Spatial equalizers codebook-based design construction details of matrices
    • H04L25/03917—Spatial equalizers codebook-based design construction details of matrices according to the size of the codebook
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers
    • H04B1/385—Transceivers carried on the body, e.g. in helmets
    • H04B2001/3855—Transceivers carried on the body, e.g. in helmets carried in a belt or harness
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers
    • H04B1/385—Transceivers carried on the body, e.g. in helmets
    • H04B2001/3861—Transceivers carried on the body, e.g. in helmets carried in a hand or on fingers
    • 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
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/046—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
    • H04B7/0469—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account taking special antenna structures, e.g. cross polarized antennas into account
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Power Engineering (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
JP2012557387A 2010-03-16 2011-03-15 ワイヤレス通信システム、基地局、端末、およびコードブック生成方法 Active JP5404940B2 (ja)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CN201010125169.1 2010-03-16
CN201010125169 2010-03-16
CN2010101643791A CN102195760A (zh) 2010-03-16 2010-05-06 无线通信系统、基站、终端及码本生成方法
CN201010164379.1 2010-05-06
PCT/CN2011/071812 WO2011113344A1 (en) 2010-03-16 2011-03-15 Wireless communication system, base station, terminal and method of generating codebook

Related Child Applications (1)

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JP2013220214A Division JP5591992B2 (ja) 2010-03-16 2013-10-23 基地局装置及び送信方法

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JP2013522988A JP2013522988A (ja) 2013-06-13
JP2013522988A5 JP2013522988A5 (en, 2012) 2013-07-25
JP5404940B2 true JP5404940B2 (ja) 2014-02-05

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JP2013220214A Active JP5591992B2 (ja) 2010-03-16 2013-10-23 基地局装置及び送信方法
JP2014153833A Active JP5809334B2 (ja) 2010-03-16 2014-07-29 通信装置及び通信方法
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JP2015177564A Active JP6083620B2 (ja) 2010-03-16 2015-09-09 通信装置及び通信方法

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US (10) US8798195B2 (en, 2012)
EP (2) EP3917028A1 (en, 2012)
JP (4) JP5404940B2 (en, 2012)
KR (3) KR101819872B1 (en, 2012)
CN (4) CN102195760A (en, 2012)
BR (1) BR112012023249B1 (en, 2012)
MX (1) MX2012010508A (en, 2012)
RU (1) RU2557462C2 (en, 2012)
WO (1) WO2011113344A1 (en, 2012)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102195760A (zh) 2010-03-16 2011-09-21 松下电器产业株式会社 无线通信系统、基站、终端及码本生成方法
CN102761354B (zh) * 2011-04-28 2015-02-18 上海贝尔股份有限公司 在网络设备中生成码本和相关数据的方法及装置
ES2718124T3 (es) 2011-06-24 2019-06-27 Sun Patent Trust Dispositivo de recepción y procedimiento de recepción
CN102857285B (zh) * 2011-06-30 2017-11-03 中兴通讯股份有限公司 信道信息反馈方法及装置
JP6447911B2 (ja) 2012-05-22 2019-01-09 サン パテント トラスト 送信方法、受信方法、送信装置及び受信装置
CN103546260B (zh) * 2012-07-10 2017-04-19 华为技术有限公司 一种多射频拉远单元共小区协作多点传输的方法及装置
US9312934B2 (en) 2012-09-18 2016-04-12 Lg Electronics Inc. Method for transmitting efficient feedback in multi-antenna wireless communication system and apparatus therefor
ES2587524T3 (es) * 2013-03-07 2016-10-25 Nec Corporation Construcción de un libro de códigos
US9755716B2 (en) 2013-03-07 2017-09-05 Nec Corporation Codebook construction
US9401749B2 (en) * 2013-03-08 2016-07-26 Google Technology Holdings LLC Method for codebook enhancement for multi-user multiple-input multiple-output systems
CN108599819B (zh) * 2013-03-08 2022-02-25 华为技术有限公司 预编码矩阵指示的反馈方法、接收端和发射端
JP6101580B2 (ja) * 2013-06-26 2017-03-22 京セラ株式会社 移動通信システム、ユーザ端末、及び通信制御方法
WO2015042849A1 (zh) * 2013-09-27 2015-04-02 华为技术有限公司 一种数据传输方法和装置
US10020855B2 (en) * 2014-09-25 2018-07-10 Ntt Docomo, Inc. User equipment and base station
CN106603128A (zh) * 2015-10-18 2017-04-26 株式会社Ntt都科摩 生成主码本的配置项的方法和电子设备
CN106936486B (zh) * 2015-12-30 2020-07-21 电信科学技术研究院 一种csi反馈方法及装置
CN107888246B (zh) * 2016-09-29 2023-04-28 华为技术有限公司 基于码本的信道状态信息反馈方法及设备
CN108288987B (zh) * 2017-01-07 2021-10-01 华为技术有限公司 一种发射分集的方法、终端和基站
WO2018165873A1 (zh) * 2017-03-14 2018-09-20 Oppo广东移动通信有限公司 一种上行信号的传输方法及相关设备
JP6857538B2 (ja) * 2017-04-14 2021-04-14 株式会社Ｎｔｔドコモ 無線基地局
US20210152224A1 (en) * 2017-06-23 2021-05-20 Ntt Docomo, Inc. User terminal and radio communication method
CN109314563B (zh) * 2018-02-24 2021-08-31 香港应用科技研究院有限公司 用于确定mimo无线通信系统中的csi的方法和装置
CN112262536B (zh) * 2018-06-27 2021-09-07 华为技术有限公司 一种数据传输方法及装置
CN110752450B (zh) * 2018-07-23 2021-08-24 京信通信技术(广州)有限公司 低互耦的多系统共体天线
DE102019129730A1 (de) 2018-11-28 2020-05-28 Samsung Electronics Co., Ltd. Drahtlos-Kommunikationsvorrichtung, welche konfiguriert ist, um eine Strahl-Sweep-Operation durchzuführen und Verfahren zum Betreiben derselben
KR102165611B1 (ko) * 2018-12-12 2020-10-14 연세대학교 산학협력단 Swipt 시스템을 위한 코드북 생성 장치 및 방법
JP7337181B2 (ja) 2019-02-15 2023-09-01 中興通訊股▲ふん▼有限公司 無線通信におけるチャネル状態情報フィードバック
US12273164B2 (en) * 2020-01-31 2025-04-08 Qualcomm Incorporated Co-phasing factor indication in downlink control information
US12135767B1 (en) * 2021-03-05 2024-11-05 Professional Credentials Exchange, LLC Systems and methods for ingesting credential information
CN116131890A (zh) * 2021-11-12 2023-05-16 中国移动通信有限公司研究院 相位配置方法、装置、设备及存储介质
CN116170041A (zh) * 2021-11-25 2023-05-26 中兴通讯股份有限公司 一种波束调控方法、电子设备和存储介质
CN114090071A (zh) * 2021-11-29 2022-02-25 重庆金康赛力斯新能源汽车设计院有限公司 一种基于matlab的simulink模型说明书生成方法

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5734962A (en) * 1996-07-17 1998-03-31 General Electric Company Satellite communications system utilizing parallel concatenated coding
US6185440B1 (en) * 1997-12-10 2001-02-06 Arraycomm, Inc. Method for sequentially transmitting a downlink signal from a communication station that has an antenna array to achieve an omnidirectional radiation
KR100316777B1 (ko) * 1999-08-24 2001-12-12 윤종용 차세대 이동 통신 시스템에서의 폐쇄 루프 전송 안테나 다이버시티 방법 및 이를 위한 기지국 장치 및 이동국 장치
JP4187377B2 (ja) * 2000-02-23 2008-11-26 富士通株式会社 無線送受信機及び電波放射方向制御方法
US7035343B2 (en) * 2002-01-31 2006-04-25 Qualcomm Inc. Closed loop transmit diversity antenna verification using trellis decoding
RU2335845C2 (ru) * 2002-04-02 2008-10-10 Нокиа Корпорейшн Кодирование коэффициентов преобразования в кодерах и/или декодерах изображения/видеосигнала
US7139328B2 (en) * 2004-11-04 2006-11-21 Motorola, Inc. Method and apparatus for closed loop data transmission
US8270514B2 (en) * 2005-01-17 2012-09-18 Sharp Kabushiki Kaisha Communication device
CN100374149C (zh) 2006-02-17 2008-03-12 徐樊 治疗支气管炎和扁桃体炎的中药制剂
KR20080040543A (ko) * 2006-11-02 2008-05-08 엘지전자 주식회사 위상천이 기반 프리코딩을 이용한 데이터 전송 방법 및이를 지원하는 송수신기
WO2008067766A1 (fr) 2006-12-05 2008-06-12 Huawei Technologies Co., Ltd. Procédé et dispositif de quantification d'un vecteur
CN101345530B (zh) * 2007-07-11 2010-09-15 华为技术有限公司 一种矢量量化方法及矢量量化器
WO2008086239A1 (en) * 2007-01-04 2008-07-17 Texas Instruments Incorporated Precoding codebook for mimo systems
US8780771B2 (en) * 2007-02-06 2014-07-15 Qualcomm Incorporated Cyclic delay diversity and precoding for wireless communication
KR20080076683A (ko) * 2007-02-14 2008-08-20 엘지전자 주식회사 위상천이 기반의 프리코딩 방법 및 이를 지원하는 송수신기
KR101285595B1 (ko) 2007-03-16 2013-07-15 퍼듀 리서치 파운데이션 다중 입출력 시스템을 위한 프리코딩 행렬 코드북 생성장치 및 그 방법
US8259824B2 (en) 2007-05-23 2012-09-04 Texas Instruments Incorporated Nested precoding codebook structures for MIMO systems
US8325839B2 (en) 2007-06-26 2012-12-04 Samsung Electronics Co., Ltd. Simple MIMO precoding codebook design for a MIMO wireless communications system
CN101436893B (zh) * 2007-11-13 2013-03-27 中兴通讯股份有限公司 智能天线中抑制干扰的波束赋形装置及方法
KR101481589B1 (ko) 2008-08-25 2015-01-12 엘지전자 주식회사 다중안테나를 갖는 무선 통신 시스템에서 피드백 정보 전송 방법, 데이터 전송 방법 및 데이터 전송 장치
US8325846B2 (en) * 2009-02-13 2012-12-04 Lg Electronics Inc. Data transmission method and apparatus in multiple antenna system
WO2010105415A1 (en) * 2009-03-17 2010-09-23 Huawei Technologies Co., Ltd. Method for generating a codebook
US8325843B2 (en) 2009-04-08 2012-12-04 Lg Electronics Inc. MIMO codebook generation
US8385968B2 (en) * 2009-09-17 2013-02-26 Electronics And Telecommunications Research Institute Precoding method and apparatus, and precoding control method and apparatus
US20110103493A1 (en) * 2009-11-02 2011-05-05 Futurewei Technologies, Inc. System and Method for Wireless Communications with Adaptive Codebooks
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
CN102088302B (zh) * 2010-02-08 2015-08-19 电信科学技术研究院 闭环多天线系统发送/接收信息的方法及装置
US9036727B2 (en) * 2010-02-15 2015-05-19 Koninklijke Philips N.V. Method of generating a codebook
CN102195760A (zh) * 2010-03-16 2011-09-21 松下电器产业株式会社 无线通信系统、基站、终端及码本生成方法

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