WO2013042987A3 - 무선 통신 시스템에서 채널 정보 피드백 방법 및 장치 - Google Patents

무선 통신 시스템에서 채널 정보 피드백 방법 및 장치 Download PDF

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Publication number
WO2013042987A3
WO2013042987A3 PCT/KR2012/007596 KR2012007596W WO2013042987A3 WO 2013042987 A3 WO2013042987 A3 WO 2013042987A3 KR 2012007596 W KR2012007596 W KR 2012007596W WO 2013042987 A3 WO2013042987 A3 WO 2013042987A3
Authority
WO
WIPO (PCT)
Prior art keywords
channel information
wireless communication
communication system
csi
information feedback
Prior art date
Application number
PCT/KR2012/007596
Other languages
English (en)
French (fr)
Other versions
WO2013042987A2 (ko
Inventor
강지원
김기태
김수남
박성호
천진영
임빈철
Original Assignee
엘지전자 주식회사
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 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020147007055A priority Critical patent/KR101573161B1/ko
Priority to US14/346,721 priority patent/US9509388B2/en
Publication of WO2013042987A2 publication Critical patent/WO2013042987A2/ko
Publication of WO2013042987A3 publication Critical patent/WO2013042987A3/ko

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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
    • H04B7/0621—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
    • H04B7/0413—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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023—Interference mitigation or co-ordination
    • 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
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • 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

Landscapes

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

Abstract

무선 통신 시스템에서 단말에 의한 채널 정보 피드백 방법 및 장치를 제공한다. 단말은 CSI-RS 구성 정보를 기지국으로부터 수신하고, CSI-RS 구성 정보에 의해 설정되는 CSI-RS 패턴의 개수에 따라 결정되는 코드북을 이용하여 채널 정보를 생성할 수 있다. 기지국은 복수의 노드에 할당되는 CSI-RS 패턴들을 하나의 제어 메시지 내의 필드를 확장하는 방법을 통해 전송할 수 있다.
PCT/KR2012/007596 2011-09-23 2012-09-21 무선 통신 시스템에서 채널 정보 피드백 방법 및 장치 WO2013042987A2 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020147007055A KR101573161B1 (ko) 2011-09-23 2012-09-21 무선 통신 시스템에서 채널 정보 피드백 방법 및 장치
US14/346,721 US9509388B2 (en) 2011-09-23 2012-09-21 Method and apparatus for channel information feedback in a wireless communication system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161538135P 2011-09-23 2011-09-23
US61/538,135 2011-09-23

Publications (2)

Publication Number Publication Date
WO2013042987A2 WO2013042987A2 (ko) 2013-03-28
WO2013042987A3 true WO2013042987A3 (ko) 2013-05-23

Family

ID=47915031

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2012/007596 WO2013042987A2 (ko) 2011-09-23 2012-09-21 무선 통신 시스템에서 채널 정보 피드백 방법 및 장치

Country Status (3)

Country Link
US (1) US9509388B2 (ko)
KR (1) KR101573161B1 (ko)
WO (1) WO2013042987A2 (ko)

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US20150003269A1 (en) * 2011-09-26 2015-01-01 Lg Electronics Inc. Method and apparatus for measuring interference in wireless communication system
WO2014168315A1 (en) * 2013-04-08 2014-10-16 Lg Electronics Inc. Method and apparatus for reporting channel state information for fractional beamforming in a wireless communication system
KR102064939B1 (ko) * 2013-08-07 2020-01-13 삼성전자 주식회사 다수의 이차원 배열 안테나를 사용하는 이동통신 시스템에서의 피드백 송수신 방법 및 장치
US20150215957A1 (en) * 2014-01-23 2015-07-30 Humax Holdings Co., Ltd. System and method for channel state information transmission on lte dual connectivity
US9872242B2 (en) 2014-01-31 2018-01-16 Qualcomm Incorporated Joint transmission of CSI-RS for channel state feedback and transmission point selection
DE102015209441A1 (de) 2014-05-23 2015-12-10 Samsung Electronics Co., Ltd. Schema zum Senden eines Referenzsignals in einem drahtlosen Kommunikationssystem
CN105429683B (zh) * 2014-09-17 2019-08-20 上海朗帛通信技术有限公司 一种3d mimo传输方法和装置
CN112491524B (zh) * 2015-04-10 2024-02-23 阿里斯卡尔股份有限公司 发送csi-rs的基站和报告csi的用户设备
CN109952716B (zh) 2016-08-12 2022-08-23 瑞典爱立信有限公司 用于高级csi反馈开销减少的可配置码本
US11025322B2 (en) 2016-08-12 2021-06-01 Telefonaktiebolaget Lm Ericsson (Publ) Progressive advanced CSI feedback
US11071095B2 (en) 2016-08-12 2021-07-20 Telefonaktiebolaget Lm Ericsson (Publ) Layer 1 and layer 2 channel state information rich reporting mechanisms
RU2765573C2 (ru) 2016-08-12 2022-02-01 Телефонактиеболагет Лм Эрикссон (Пабл) Многолучевые кодовые книги с дополнительно оптимизированными издержками
CN108400851B (zh) * 2017-02-04 2022-08-19 中兴通讯股份有限公司 配置信息处理方法及装置、基站、终端
SG11201911810PA (en) 2017-10-30 2020-01-30 Guangdong Oppo Mobile Telecommunications Corp Ltd Method for transmitting signal, network device, and terminal device
WO2019212323A1 (ko) * 2018-05-04 2019-11-07 엘지전자 주식회사 무선 통신 시스템에서 채널 상태 정보를 보고하는 방법 및 이를 위한 장치
WO2020052765A1 (en) * 2018-09-13 2020-03-19 Nokia Technologies Oy Apparatus, method and computer program
US20210226687A1 (en) * 2020-01-22 2021-07-22 Qualcomm Incorporated Beam selection using a window for precoding

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Also Published As

Publication number Publication date
WO2013042987A2 (ko) 2013-03-28
KR20140057344A (ko) 2014-05-12
US20140226611A1 (en) 2014-08-14
KR101573161B1 (ko) 2015-12-01
US9509388B2 (en) 2016-11-29

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