CN104094547A - 报告信道状态信息的方法、用户设备和基站 - Google Patents

报告信道状态信息的方法、用户设备和基站 Download PDF

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CN104094547A
CN104094547A CN201380002314.9A CN201380002314A CN104094547A CN 104094547 A CN104094547 A CN 104094547A CN 201380002314 A CN201380002314 A CN 201380002314A CN 104094547 A CN104094547 A CN 104094547A
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matrix
precoding matrix
reference signal
codebook
precoding
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CN104094547B (zh
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张雷鸣
周永行
刘江华
吴强
王建国
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201711210977.6A priority patent/CN108092699A/zh
Priority to CN201711211173.8A priority patent/CN108063633B/zh
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    • 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
    • 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
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • 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
    • H04B7/06—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
    • H04B7/0617—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 for beam forming
    • 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
    • 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
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
    • H04L25/0246—Channel estimation channel estimation algorithms using matrix methods with factorisation
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel estimation of multiple channels
    • 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)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • External Artificial Organs (AREA)

Abstract

本发明提供一种报告信道状态信息(CSI)的方法，包括：接收基站发送的参考信号(101)。基于参考信号，从码本中选择预编码矩阵，码本中包含预编码矩阵W，W＝αSV，其中矩阵V为N×ν的矩阵，N为参考信号端口数，ν≤N，S为行选择矩阵，用于选择矩阵V中的一个或者多个行矢量，α为常数(102)。向基站发送CSI，CSI包括预编码矩阵指示PMI，PMI与选择的预编码矩阵相对应(103)。本发明实施例中，通过调整码本的结构，可以根据干扰情况来选择合适的预编码矩阵，从而选择用于数据传输的天线端口及其功率，进而减少了由基站进行干扰控制所带来的调度资源的浪费。

Description

PCT国内申请，说明书已公开。

Claims (163)

  1. PCT国内申请，权利要求书已公开。
CN201380002314.9A 2012-12-31 2013-03-08 报告信道状态信息的方法、用户设备和基站 Active CN104094547B (zh)

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CN201380002314.9A CN104094547B (zh) 2012-12-31 2013-03-08 报告信道状态信息的方法、用户设备和基站
CN201711210977.6A CN108092699A (zh) 2012-12-31 2013-03-08 报告信道状态信息的方法、用户设备和基站
CN201711211173.8A CN108063633B (zh) 2012-12-31 2013-03-08 报告信道状态信息的方法、用户设备和基站

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PCT/CN2012/088147 WO2014101242A1 (zh) 2012-12-31 2012-12-31 报告信道状态信息csi的方法、用户设备和基站
PCT/CN2013/072369 WO2014101350A1 (zh) 2012-12-31 2013-03-08 报告信道状态信息的方法、用户设备和基站
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Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2808566T3 (es) 2013-05-31 2021-03-01 Qualcomm Inc Precodificación lineal en sistemas MIMO de dimensión completa
US9392549B2 (en) * 2013-06-11 2016-07-12 Broadcom Corporation Reducing precoder signaling overhead for MIMO communication system
US20160149626A1 (en) * 2013-06-20 2016-05-26 Telefonaktiebolaget L M Ericsson (Publ) Mapping Codewords
CN104811229B (zh) * 2014-01-24 2020-09-08 中兴通讯股份有限公司 信道状态信息处理方法、装置、终端及基站
KR101893153B1 (ko) * 2014-09-03 2018-10-04 엘지전자 주식회사 이동 단말기 및 그 제어 방법
WO2017014610A1 (ko) * 2015-07-23 2017-01-26 엘지전자 주식회사 다중 안테나 무선 통신 시스템에서 코드북 기반 신호 송수신 방법 및 이를 위한 장치
WO2017026865A1 (en) * 2015-08-13 2017-02-16 Samsung Electronics Co., Ltd. Method and apparatus for operating beamformed reference signal in communication system
CN109302222B (zh) 2016-05-13 2019-11-19 华为技术有限公司 一种信道信息发送方法、数据发送方法和设备
CN107863999B (zh) * 2016-09-22 2021-01-22 电信科学技术研究院 一种信号传输的方法及装置
CN108667497B (zh) * 2017-03-30 2020-08-14 电信科学技术研究院 一种传输层数确定方法及装置
CN108880645B (zh) 2017-07-26 2019-08-27 华为技术有限公司 用于数据传输的方法、装置和系统
KR102095048B1 (ko) * 2017-09-07 2020-03-30 엘지전자 주식회사 무선 통신 시스템에서 코드북에 기초하여 상향링크 신호를 전송하는 방법 및 이를 위한 장치
CN111052647A (zh) 2017-09-08 2020-04-21 Oppo广东移动通信有限公司 无线通信方法、终端设备和发射节点
CN108112083B (zh) * 2017-12-23 2021-12-28 航天恒星科技有限公司 具有非理想电路的中继最优功率分配算法
US20190394733A1 (en) * 2018-06-20 2019-12-26 Mediatek Inc. Ul transmission utilizing full tx power at ue
CN111278005B (zh) * 2019-01-22 2021-09-24 维沃移动通信有限公司 能力信息上报方法、预编码矩阵指示反馈方法和相关设备
US20220158798A1 (en) * 2019-03-13 2022-05-19 Lg Electronics Inc. Method for reporting channel state information in wireless communication system, and apparatus therefor
US12040630B2 (en) 2021-05-26 2024-07-16 Qualcomm Incorporated Signaling for energy harvesting at a device
US11990762B2 (en) * 2021-05-26 2024-05-21 Qualcomm Incorporated Channel reporting for energy harvesting at a device

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2472766B1 (en) * 2006-04-28 2015-12-09 Panasonic Intellectual Property Corporation of America Radio Communication Base Station Apparatus and Radio Communication Method Used for Multi-Carrier Communication
US8351521B2 (en) * 2008-03-17 2013-01-08 Qualcomm Incorporated Multi-resolution beamforming based on codebooks in MIMO systems
US8447236B2 (en) * 2008-05-15 2013-05-21 Qualcomm Incorporated Spatial interference mitigation schemes for wireless communication
US8130666B2 (en) * 2008-06-30 2012-03-06 Samsung Electronics Co., Ltd. Multiple input multiple output communication system and operating method thereof
EP2192698A1 (en) * 2008-11-28 2010-06-02 Alcatel Lucent Selection of Precoding Vectors for Radio Base Station with multiple antennas
CN102461000B (zh) * 2009-04-28 2015-04-08 诺基亚公司 信道状态信息反馈的方法及设备
US8600308B2 (en) * 2009-06-17 2013-12-03 Futurewei Technologies, Inc. Channel state information feedback for coordinated multiple points transmission
CN101789848B (zh) * 2010-01-11 2016-01-20 中兴通讯股份有限公司 Lte-a系统的上行链路预编码矩阵的信令指示方法
CN102763345A (zh) * 2010-01-12 2012-10-31 株式会社泛泰 用于信道信息反馈的装置和方法、接收信道信息的基站及基站的通信方法
TWI444989B (zh) * 2010-01-22 2014-07-11 Dolby Lab Licensing Corp 針對改良多通道上混使用多通道解相關之技術
KR101606799B1 (ko) * 2010-02-22 2016-04-11 엘지전자 주식회사 분산 안테나 시스템에서의 신호 전송 방법
JP5841075B2 (ja) * 2010-02-23 2016-01-06 エルジー エレクトロニクス インコーポレイティド アップリンク多重アンテナ伝送を支援する無線通信システムにおいてアップリンク伝送のための制御情報を提供する方法及び装置
KR101276855B1 (ko) * 2010-03-08 2013-06-18 엘지전자 주식회사 프리코딩 행렬 정보 전송방법 및 사용자기기와, 프리코딩 행렬 구성방법 및 기지국
US8824386B2 (en) * 2010-05-05 2014-09-02 Mediatek Inc. Method and system of operating a multi-user system
CN102237958B (zh) * 2010-05-07 2013-10-16 电信科学技术研究院 一种基于pucch上报csi的方法及装置
CN101873207B (zh) * 2010-06-13 2015-05-13 中兴通讯股份有限公司 一种多天线系统上行传输块的重传系统及方法
CN102299775B (zh) * 2010-06-24 2013-12-04 上海贝尔股份有限公司 一种预编码矩阵的选择方法和装置
CN101969363B (zh) * 2010-09-30 2016-03-30 中兴通讯股份有限公司 信道状态信息反馈方法及终端
CN102045762B (zh) * 2010-12-02 2013-07-24 大唐移动通信设备有限公司 一种上报信道状态的方法及装置
US8913515B2 (en) * 2010-12-15 2014-12-16 Mediatek Singapore Pte. Ltd. Measuring and improving multiuser downlink reception quality in wireless local area networks
CN102130746B (zh) * 2011-04-25 2014-04-09 北京理工大学 多点协作传输系统中的网络编码反馈方法
US20120314590A1 (en) * 2011-06-10 2012-12-13 Sharp Laboratories Of America, Inc. Enhanced precoding feedback for multiple-user multiple-input and multiple-output (mimo)
CN102291212B (zh) * 2011-08-12 2014-06-18 电信科学技术研究院 信道状态信息的反馈方法和设备
CN102938688B (zh) * 2011-08-15 2015-05-27 上海贝尔股份有限公司 用于多维天线阵列的信道测量和反馈的方法和设备
CN102629895A (zh) * 2012-04-27 2012-08-08 中国科学技术大学 一种改善数据流间公平性的多播酉预编码方法
US11546787B2 (en) * 2012-05-09 2023-01-03 Samsung Electronics Co., Ltd. CSI definitions and feedback modes for coordinated multi-point transmission
US8798550B2 (en) * 2012-05-11 2014-08-05 Telefonaktiebolaget L M Ericsson (Publ) Methods and arrangements for CSI reporting
CN102801498B (zh) * 2012-07-25 2016-03-02 电信科学技术研究院 一种终端设备选择子带反馈的上报及确定方法和设备
US8976884B2 (en) * 2012-12-20 2015-03-10 Google Technology Holdings LLC Method and apparatus for antenna array channel feedback

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