CN101340219B - 信道状态信息反馈方法及无线收发装置 - Google Patents
信道状态信息反馈方法及无线收发装置 Download PDFInfo
- Publication number
- CN101340219B CN101340219B CN200710043421A CN200710043421A CN101340219B CN 101340219 B CN101340219 B CN 101340219B CN 200710043421 A CN200710043421 A CN 200710043421A CN 200710043421 A CN200710043421 A CN 200710043421A CN 101340219 B CN101340219 B CN 101340219B
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- China
- Prior art keywords
- coding matrix
- code book
- matrix
- theta
- auxiliary code
- 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.)
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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
- 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
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
-
- 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
- H04L1/0025—Transmission of mode-switching indication
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Radio Transmission System (AREA)
Abstract
Description
Claims (10)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200710043421A CN101340219B (zh) | 2007-07-04 | 2007-07-04 | 信道状态信息反馈方法及无线收发装置 |
PCT/CN2008/071552 WO2009003423A1 (fr) | 2007-07-04 | 2008-07-04 | Procédé pour un renvoi d'information d'état de canal et émetteur-récepteur sans fil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200710043421A CN101340219B (zh) | 2007-07-04 | 2007-07-04 | 信道状态信息反馈方法及无线收发装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101340219A CN101340219A (zh) | 2009-01-07 |
CN101340219B true CN101340219B (zh) | 2012-10-03 |
Family
ID=40214196
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200710043421A Expired - Fee Related CN101340219B (zh) | 2007-07-04 | 2007-07-04 | 信道状态信息反馈方法及无线收发装置 |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN101340219B (zh) |
WO (1) | WO2009003423A1 (zh) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8565064B2 (en) | 2008-12-15 | 2013-10-22 | Futurewei Technologies, Inc. | System and method for employing six-bit rank 1 and 2 codebooks for four transmit antennas |
CN101789818A (zh) * | 2009-01-23 | 2010-07-28 | 雷凌科技股份有限公司 | 用于无线通信系统中波束形成的系统和方法 |
KR101644433B1 (ko) * | 2009-02-13 | 2016-08-01 | 엘지전자 주식회사 | 4 안테나 시스템에서 상향링크 프리코딩 수행 방법 |
US8358718B2 (en) * | 2009-04-02 | 2013-01-22 | Samsung Electronics Co., Ltd. | Apparatus and method for determining optimum integer perturbation vector of low complexity in multiple antenna system |
US8243610B2 (en) * | 2009-04-21 | 2012-08-14 | Futurewei Technologies, Inc. | System and method for precoding codebook adaptation with low feedback overhead |
US8600308B2 (en) * | 2009-06-17 | 2013-12-03 | Futurewei Technologies, Inc. | Channel state information feedback for coordinated multiple points transmission |
CN101989867B (zh) * | 2009-07-30 | 2014-05-07 | 华为技术有限公司 | 一种协作通信的方法和系统、基站及移动终端装置 |
CN101656560B (zh) * | 2009-09-24 | 2012-09-26 | 北京理工大学 | 一种高效频谱利用率的协作通信方法 |
CN102035626B (zh) | 2009-09-30 | 2013-06-12 | 华为技术有限公司 | 一种获取预编码矩阵指示的方法和装置 |
WO2011085545A1 (zh) * | 2010-01-13 | 2011-07-21 | 上海贝尔股份有限公司 | 在网络设备中生成反馈码书的方法及装置 |
CN102130751B (zh) * | 2010-01-20 | 2013-06-12 | 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、系统及装置 |
CN102771073A (zh) * | 2010-04-29 | 2012-11-07 | 富士通株式会社 | 生成码书的方法和装置及使用该码书的通信系统、移动台、基站和通信方法 |
CN101826951B (zh) * | 2010-05-05 | 2016-03-30 | 中兴通讯股份有限公司 | 反馈信道状态信息的方法及装置 |
CN101820335B (zh) * | 2010-05-07 | 2015-12-16 | 中兴通讯股份有限公司 | 一种使用二级码字反馈信道状态信息的方法 |
CN102412939A (zh) * | 2010-09-21 | 2012-04-11 | 普天信息技术研究院有限公司 | 一种采用双码本进行信道信息反馈的方法和系统 |
CN102891739B (zh) * | 2011-07-19 | 2017-10-10 | 中兴通讯股份有限公司 | 一种基于码本的多点协作预编码实现方法和装置 |
CN102938687B (zh) * | 2011-08-15 | 2015-08-26 | 华为技术有限公司 | 上行预编码信息发送方法、预编码方法、基站及终端 |
KR101855523B1 (ko) * | 2011-10-06 | 2018-05-04 | 삼성전자주식회사 | 통신 시스템에서 피드백 생성 방법 및 장치 |
CN104283634B (zh) * | 2013-07-08 | 2019-07-30 | 中兴通讯股份有限公司 | 一种数据的发送方法、接收方法、系统及装置 |
US9178588B2 (en) * | 2013-09-10 | 2015-11-03 | Intel IP Corporation | Method for determining a transmission direction for a communication, a method for determining a precoding matrix for a communication, and a device configured to do the same |
CN103944677A (zh) * | 2014-04-15 | 2014-07-23 | 电子科技大学 | 一种多天线量化预编码的码本设计方法 |
WO2016045085A1 (zh) * | 2014-09-26 | 2016-03-31 | 华为技术有限公司 | 信道测量方法和装置 |
US11115097B2 (en) | 2017-02-02 | 2021-09-07 | Nokia Technologies Oy | Adaptive explicit CSI feedback and overhead reduction |
CN112204897A (zh) | 2018-06-01 | 2021-01-08 | 瑞典爱立信有限公司 | 用于波束选择的方法 |
US11122571B2 (en) | 2018-11-30 | 2021-09-14 | Telefonaktiebolaget Lm Ericsson (Publ) | Approaches for beam selection |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050286663A1 (en) * | 2004-06-23 | 2005-12-29 | Intel Corporation | Compact feedback for closed loop MIMO systems |
US8385433B2 (en) * | 2005-10-27 | 2013-02-26 | Qualcomm Incorporated | Linear precoding for spatially correlated channels |
KR100659725B1 (ko) * | 2005-12-09 | 2006-12-19 | 한국전자통신연구원 | 다중 안테나 시스템의 송신 장치 및 방법과, 수신 장치 및방법 |
-
2007
- 2007-07-04 CN CN200710043421A patent/CN101340219B/zh not_active Expired - Fee Related
-
2008
- 2008-07-04 WO PCT/CN2008/071552 patent/WO2009003423A1/zh active Application Filing
Non-Patent Citations (1)
Title |
---|
Yellapantula, R. et al.Unitary precoding and power control in MIMO systems with limited feedback.《Wireless Communications and Networking Conference, 2006. WCNC 2006. IEEE 》.2006, * |
Also Published As
Publication number | Publication date |
---|---|
CN101340219A (zh) | 2009-01-07 |
WO2009003423A1 (fr) | 2009-01-08 |
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