CN104969497A - 确定码本的方法、信息反馈方法及其装置 - Google Patents
确定码本的方法、信息反馈方法及其装置 Download PDFInfo
- Publication number
- CN104969497A CN104969497A CN201380070095.8A CN201380070095A CN104969497A CN 104969497 A CN104969497 A CN 104969497A CN 201380070095 A CN201380070095 A CN 201380070095A CN 104969497 A CN104969497 A CN 104969497A
- Authority
- CN
- China
- Prior art keywords
- code
- code book
- code word
- book
- antenna configuration
- 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
- H04B7/0413—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
- 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
- H04B7/0639—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)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
一种确定码本的方法、信息反馈方法及其装置。对于差分双码本的预编码,该方法包括:在第二码本中设置N1个码字,使得由该第二码本与第一码本中码字的乘积所获得的复合码字满足相应的天线配置;该N1大于等于16。或者对于GoB双码本的预编码,该方法包括:所述第一码本中的码字为:式(I):其中,D1和D2分别为酉对角矩阵,分别用于对矩阵X的各行及各列元素进行加权;X包含Nb个列向量;Nb表示第一码本的码字包含的波束个数。通过本发明实施例,可适用于各种天线配置。
Description
PCT国内申请,说明书已公开。
Claims (1)
- PCT国内申请,权利要求书已公开。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2013/072373 WO2014134835A1 (zh) | 2013-03-08 | 2013-03-08 | 确定码本的方法、信息反馈方法及其装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN104969497A true CN104969497A (zh) | 2015-10-07 |
Family
ID=51490597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201380070095.8A Pending CN104969497A (zh) | 2013-03-08 | 2013-03-08 | 确定码本的方法、信息反馈方法及其装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9602180B2 (zh) |
EP (1) | EP2966796A4 (zh) |
JP (1) | JP2016510957A (zh) |
KR (1) | KR101738287B1 (zh) |
CN (1) | CN104969497A (zh) |
WO (1) | WO2014134835A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109379123A (zh) * | 2018-11-20 | 2019-02-22 | 南京信息工程大学 | 空时相关信道自适应差分预编码码书设计方法 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016024912A2 (en) * | 2015-11-04 | 2016-02-18 | Telefonaktiebolaget L M Ericsson (Publ) | Precoding a transmission from a two-dimensional antenna array using a partially reshaped codebook |
CN108337026B (zh) | 2016-11-04 | 2019-03-26 | 华为技术有限公司 | 信息反馈方法、用户设备和网络设备 |
US11569876B2 (en) * | 2020-09-15 | 2023-01-31 | Qualcomm Incorporated | Beam index reporting based at least in part on a precoded channel state information reference signal |
US20230170976A1 (en) * | 2021-11-30 | 2023-06-01 | Qualcomm Incorporated | Beam selection and codebook learning based on xr perception |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101969366A (zh) * | 2010-09-26 | 2011-02-09 | 华中科技大学 | 用于8发射天线mimo系统的预编码方法 |
WO2012043202A1 (en) * | 2010-09-30 | 2012-04-05 | Sharp Kabushiki Kaisha | User equipment and method for pre-coding matrix index feedback |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
PL3352380T3 (pl) * | 2010-10-04 | 2019-11-29 | Samsung Electronics Co Ltd | Sposób i urządzenie do wysyłania i odbierania bitmapy ograniczenia podzbioru zestawu kodowego |
US8995541B2 (en) * | 2010-11-05 | 2015-03-31 | Panasonic Intellectual Property Corporation Of America | Method, mobile terminal, base station, and system for reporting best companion precoding matrix index in communication system with double codebook |
CN102571301B (zh) * | 2011-12-27 | 2014-07-09 | 东南大学 | 一种基于双码本的多用户自适应反馈方法 |
US9281881B2 (en) * | 2013-02-12 | 2016-03-08 | Texas Instruments Incorporated | 4TX codebook enhancement in LTE |
-
2013
- 2013-03-08 KR KR1020157026651A patent/KR101738287B1/ko active IP Right Grant
- 2013-03-08 EP EP13877239.7A patent/EP2966796A4/en not_active Withdrawn
- 2013-03-08 JP JP2015560515A patent/JP2016510957A/ja active Pending
- 2013-03-08 CN CN201380070095.8A patent/CN104969497A/zh active Pending
- 2013-03-08 WO PCT/CN2013/072373 patent/WO2014134835A1/zh active Application Filing
-
2015
- 2015-08-27 US US14/837,421 patent/US9602180B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101969366A (zh) * | 2010-09-26 | 2011-02-09 | 华中科技大学 | 用于8发射天线mimo系统的预编码方法 |
WO2012043202A1 (en) * | 2010-09-30 | 2012-04-05 | Sharp Kabushiki Kaisha | User equipment and method for pre-coding matrix index feedback |
Non-Patent Citations (5)
Title |
---|
LG ELECTRONICS: ""Feedback Codebook Enhancement and Performance Evaluation"", 《3GPP TSG RAN WG1 MEETING #62 R1-104768》 * |
NOKIA, NOKIA SIEMENS NETWORKS: ""Double codebook design principles"", 《3GPP TSG-RAN WG1 MEETING #61BIS R1-103804》 * |
QUALCOMM INC: ""Codebook system evaluations for 4Tx"", 《3GPP TSG-RAN WG1 #62, R1-104799》 * |
SAMSUNG: ""Discussions on CSI feedback enhancement for homogeneous macro network"", 《3GPP TSG RAN WG1 MEETING #66BIS,R1-113584》 * |
TEXAS INSTRUMENTS: ""Dual-Stage Codebook Proposal for Rel.10 DL MIMO"", 《3GPP TSG RAN WG1 62# R1-104471》 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109379123A (zh) * | 2018-11-20 | 2019-02-22 | 南京信息工程大学 | 空时相关信道自适应差分预编码码书设计方法 |
CN109379123B (zh) * | 2018-11-20 | 2021-09-07 | 南京信息工程大学 | 空时相关信道自适应差分预编码码书设计方法 |
Also Published As
Publication number | Publication date |
---|---|
KR20150121199A (ko) | 2015-10-28 |
US20150372731A1 (en) | 2015-12-24 |
WO2014134835A1 (zh) | 2014-09-12 |
EP2966796A4 (en) | 2017-03-01 |
US9602180B2 (en) | 2017-03-21 |
KR101738287B1 (ko) | 2017-05-19 |
EP2966796A1 (en) | 2016-01-13 |
JP2016510957A (ja) | 2016-04-11 |
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