CN102598731A - 获取下行信道状态信息的方法及装置 - Google Patents

获取下行信道状态信息的方法及装置 Download PDF

Info

Publication number
CN102598731A
CN102598731A CN2009801622273A CN200980162227A CN102598731A CN 102598731 A CN102598731 A CN 102598731A CN 2009801622273 A CN2009801622273 A CN 2009801622273A CN 200980162227 A CN200980162227 A CN 200980162227A CN 102598731 A CN102598731 A CN 102598731A
Authority
CN
China
Prior art keywords
matrix
antenna
user terminal
reference signals
signal
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN2009801622273A
Other languages
English (en)
Other versions
CN102598731B (zh
Inventor
张晓博
石璟
尤明礼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Shanghai Bell Co Ltd
Original Assignee
Alcatel Lucent Shanghai Bell Co Ltd
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 Alcatel Lucent Shanghai Bell Co Ltd filed Critical Alcatel Lucent Shanghai Bell Co Ltd
Publication of CN102598731A publication Critical patent/CN102598731A/zh
Application granted granted Critical
Publication of CN102598731B publication Critical patent/CN102598731B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H04B7/0413—MIMO systems
    • H04B7/0417—Feedback 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
    • H04B7/06—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)

Abstract

本发明提出了一种基站获取全部下行链路的信道状态信息的技术方案：针对基站至用户终端的发送上行参考信号的天线之间的下行无线通信链路，根据时分复用无线通信系统的互惠性，基站根据接收到的上行参考信号来获取该下行无线通信链路的信道状态信息；针对基站至用户终端的仅用于接收信号而不发送信号的天线之间的下行无线通信链路，用户终端确定一个预编码矩阵，称之为部分预编码矩阵，并将该预编码矩阵的指示符发送给基站；从而使得基站获得了全部的下行无线通信链路的信道状态信息。

Description

PCT国内申请，说明书已公开。

Claims (1)

  1. PCT国内申请，权利要求书已公开。
CN200980162227.3A 2009-11-02 2009-11-02 获取下行信道状态信息的方法及装置 Active CN102598731B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2009/074752 WO2011050543A1 (zh) 2009-11-02 2009-11-02 获取下行信道状态信息的方法及装置

Publications (2)

Publication Number Publication Date
CN102598731A true CN102598731A (zh) 2012-07-18
CN102598731B CN102598731B (zh) 2015-06-10

Family

ID=43921270

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200980162227.3A Active CN102598731B (zh) 2009-11-02 2009-11-02 获取下行信道状态信息的方法及装置

Country Status (2)

Country Link
CN (1) CN102598731B (zh)
WO (1) WO2011050543A1 (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108540995A (zh) * 2017-03-03 2018-09-14 维沃移动通信有限公司 一种信道状态检测方法、网络设备及用户设备
CN110034898A (zh) * 2018-01-12 2019-07-19 电信科学技术研究院有限公司 一种参考信号传输方法及装置
WO2019161546A1 (en) * 2018-02-23 2019-08-29 Nokia Shanghai Bell Co., Ltd. Reciprocity based csi reporting configuration
CN114342276A (zh) * 2019-07-24 2022-04-12 谷歌有限责任公司 在通信系统中控制dl mimo传输
CN115396854A (zh) * 2022-08-25 2022-11-25 深圳职业技术学院 一种工业物联网中的数据传输方法、第一通信节点及系统

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107979878B (zh) * 2017-10-11 2019-08-23 捷开通讯(深圳)有限公司 一种通信方法及基站
CN109951215B (zh) * 2017-12-20 2022-05-13 华为技术有限公司 一种获取下行信道信息的方法及装置
US11283507B2 (en) * 2020-07-23 2022-03-22 Samsung Electronics Co., Ltd. Transmitter beamforming at base station with partial channel information and UE feedback

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6898441B1 (en) * 2000-09-12 2005-05-24 Lucent Technologies Inc. Communication system having a flexible transmit configuration
CN101471707A (zh) * 2007-12-28 2009-07-01 华为技术有限公司 时分双工多输入多输出的下行波束形成方法、装置和系统

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8014265B2 (en) * 2007-08-15 2011-09-06 Qualcomm Incorporated Eigen-beamforming for wireless communication systems
CN101388752B (zh) * 2007-09-11 2011-08-17 电信科学技术研究院 基于时分双工系统的上行空间传输方法、终端和基站

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6898441B1 (en) * 2000-09-12 2005-05-24 Lucent Technologies Inc. Communication system having a flexible transmit configuration
CN101471707A (zh) * 2007-12-28 2009-07-01 华为技术有限公司 时分双工多输入多输出的下行波束形成方法、装置和系统

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108540995A (zh) * 2017-03-03 2018-09-14 维沃移动通信有限公司 一种信道状态检测方法、网络设备及用户设备
CN110034898A (zh) * 2018-01-12 2019-07-19 电信科学技术研究院有限公司 一种参考信号传输方法及装置
CN110034898B (zh) * 2018-01-12 2021-11-16 大唐移动通信设备有限公司 一种参考信号传输方法及装置
WO2019161546A1 (en) * 2018-02-23 2019-08-29 Nokia Shanghai Bell Co., Ltd. Reciprocity based csi reporting configuration
CN112042245A (zh) * 2018-02-23 2020-12-04 上海诺基亚贝尔股份有限公司 基于互易性的csi报告配置
CN114342276A (zh) * 2019-07-24 2022-04-12 谷歌有限责任公司 在通信系统中控制dl mimo传输
US11902198B2 (en) 2019-07-24 2024-02-13 Google Llc Controlling DL MIMO transmissions in a communication system
CN115396854A (zh) * 2022-08-25 2022-11-25 深圳职业技术学院 一种工业物联网中的数据传输方法、第一通信节点及系统

Also Published As

Publication number Publication date
CN102598731B (zh) 2015-06-10
WO2011050543A1 (zh) 2011-05-05

Similar Documents

Publication Publication Date Title
CN102882578B (zh) 用于无线通信系统中的预编码的方法和设备
US9712365B2 (en) Compressed feedback format for WLAN
CN101686110B (zh) 一种多输入多输出系统、及其数据传输的方法及装置
EP2034682B1 (en) Beamforming using a codebook in a multiple-user MIMO communication system
CN104022811B (zh) 无线通信系统中发射/接收参考信号的方法和装置
CN102725967B (zh) 用于信息反馈以及预编码的方法和装置
EP2981013B1 (en) System and method for pucch subband feedback signaling in a wireless network
US8233559B2 (en) Method and apparatus for transmitting a pilot in multi-antenna system
EP2899897B1 (en) Methods and systems for combined precoding and cyclic delay diversity
CN105471485B (zh) 用于发送和接收码本子集限制位图的方法和设备
CN104067533B (zh) 信道状态信息反馈的方法以及一种用户设备和基站
CN102598731A (zh) 获取下行信道状态信息的方法及装置
US20140369311A1 (en) Method, Terminal And Base Station For Multi-User Interference Suppression
CN102237968B (zh) 一种信道状态信息的传输方法和设备
EP1914947A1 (en) Pre-coding for MIMO system
WO2009124452A1 (zh) 无线通信系统中控制协作传输下行信号的方法和装置
CN101529777A (zh) 用于使用循环延迟分集发射数据的方法
CN103731187A (zh) 传送数据符号的设备以及接收数据符号的设备和方法
JP2011130438A (ja) 無線通信システムにおけるマルチユーザｍｉｍｏの伝送方法、基地局及びユーザ端末
US8208439B2 (en) Optimal user pairing for multiuser MIMO
CN102227949B (zh) 无线通信系统中控制同信道干扰的方法和装置
CN105075139A (zh) 在多天线无线通信系统中发送信号的方法及其装置
CN102356566B (zh) 在使用预编码的多用户网络中的通信方法及其设备
CN101682475A (zh) 用于控制无线通信网络中的多天线传输的方法和设备
CN101242368A (zh) 基于协作传输的无线传感器网络中的功率分配系统及方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 201206 Pudong Jinqiao Ning Road, Shanghai, No. 388

Patentee after: Shanghai NOKIA Baer Limited by Share Ltd

Address before: 201206 Pudong Jinqiao Ning Road, Shanghai, No. 388

Patentee before: Shanghai Alcatel-Lucent Co., Ltd.