WO2011129583A3 - 다중 안테나 지원 무선 통신 시스템에서 효율적인 피드백 방법 및 장치 - Google Patents

다중 안테나 지원 무선 통신 시스템에서 효율적인 피드백 방법 및 장치 Download PDF

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WO2011129583A3
WO2011129583A3 PCT/KR2011/002572 KR2011002572W WO2011129583A3 WO 2011129583 A3 WO2011129583 A3 WO 2011129583A3 KR 2011002572 W KR2011002572 W KR 2011002572W WO 2011129583 A3 WO2011129583 A3 WO 2011129583A3
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Prior art keywords
wireless communication
communication system
transmitting
multiple antennas
supporting multiple
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PCT/KR2011/002572
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English (en)
French (fr)
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WO2011129583A2 (ko
Inventor
고현수
정재훈
한승희
이문일
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엘지전자 주식회사
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Priority to JP2013504814A priority Critical patent/JP5881678B2/ja
Priority to EP11769049.5A priority patent/EP2560296A4/en
Priority to CN201180027807.9A priority patent/CN102934369B/zh
Priority to US13/641,058 priority patent/US8917790B2/en
Publication of WO2011129583A2 publication Critical patent/WO2011129583A2/ko
Publication of WO2011129583A3 publication Critical patent/WO2011129583A3/ko
Priority to US14/540,714 priority patent/US9300375B2/en

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    • 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
    • H04B7/0413—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
    • H04B7/0456—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
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0486—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking channel rank into account
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • 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
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    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
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    • 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
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    • 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
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    • H—ELECTRICITY
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    • H04B7/00—Radio transmission systems, i.e. using radiation field
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    • 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
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    • H04B7/0636—Feedback format
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    • 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
    • H04B7/0645—Variable feedback
    • H04B7/065—Variable contents, e.g. long-term or short-short
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
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    • 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
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    • H04B7/0658—Feedback reduction
    • H—ELECTRICITY
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    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
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    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
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    • 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
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    • H04L1/0029—Reduction of the amount of signalling, e.g. retention of useful signalling or differential signalling
    • H—ELECTRICITY
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    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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    • 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
    • H04L1/0028—Formatting
    • H04L1/0031—Multiple signaling transmission
    • H—ELECTRICITY
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    • 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
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    • H—ELECTRICITY
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    • H04L25/00—Baseband systems
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    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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    • H04L25/03949—Spatial equalizers equalizer selection or adaptation based on feedback
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
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    • H04L5/0005—Time-frequency
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    • H—ELECTRICITY
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    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Quality & Reliability (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)

Abstract

본 발명은 무선 통신 시스템에 대한 것으로, 보다 상세하게는 다중 안테나 지원 무선 통신 시스템에서 효율적인 피드백 방법 및 장치가 개시된다. 본 발명의 일 실시예에 따른 무선 통신 시스템에서 하향링크 전송에 대한 채널상태정보를 상향링크를 통하여 전송하는 방법은, 제1서브프레임에서 탱크 지시자 (RI )를 전송하는 단계, 제2서브프레임에서 제1프리코딩행렬지시자 (PMI )를 전송하는 단계, 및 제 3서브프레임에서 제 2 PMI및 채널품질지시자 (CQI )를 전송하는 단계를 포함할 수 있고, 제1 PMI 및 제2 PMI 의 조합에 의해 하향링크 전송에 적용될 프리코딩 행렬이 결정될 수 있다.
PCT/KR2011/002572 2010-04-12 2011-04-12 다중 안테나 지원 무선 통신 시스템에서 효율적인 피드백 방법 및 장치 WO2011129583A2 (ko)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2013504814A JP5881678B2 (ja) 2010-04-12 2011-04-12 多重アンテナ支援無線通信システムにおいて効率的なフィードバック方法及び装置
EP11769049.5A EP2560296A4 (en) 2010-04-12 2011-04-12 METHOD AND DEVICE FOR EFFICIENT FEEDBACK IN A WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE ANTENNAS
CN201180027807.9A CN102934369B (zh) 2010-04-12 2011-04-12 在支持多天线的无线通信系统中的有效反馈的方法和设备
US13/641,058 US8917790B2 (en) 2010-04-12 2011-04-12 Method and device for efficient feedback in wireless communication system supporting multiple antennas
US14/540,714 US9300375B2 (en) 2010-04-12 2014-11-13 Method and device for efficient feedback in wireless communication system supporting multiple antennas

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US32334510P 2010-04-12 2010-04-12
US61/323,345 2010-04-12
US33494810P 2010-05-14 2010-05-14
US61/334,948 2010-05-14

Related Child Applications (3)

Application Number Title Priority Date Filing Date
US13631058 A-371-Of-International 2011-04-12
US13/641,058 A-371-Of-International US8917790B2 (en) 2010-04-12 2011-04-12 Method and device for efficient feedback in wireless communication system supporting multiple antennas
US14/540,714 Continuation US9300375B2 (en) 2010-04-12 2014-11-13 Method and device for efficient feedback in wireless communication system supporting multiple antennas

Publications (2)

Publication Number Publication Date
WO2011129583A2 WO2011129583A2 (ko) 2011-10-20
WO2011129583A3 true WO2011129583A3 (ko) 2012-02-02

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Application Number Title Priority Date Filing Date
PCT/KR2011/002572 WO2011129583A2 (ko) 2010-04-12 2011-04-12 다중 안테나 지원 무선 통신 시스템에서 효율적인 피드백 방법 및 장치

Country Status (5)

Country Link
US (2) US8917790B2 (ko)
EP (1) EP2560296A4 (ko)
JP (1) JP5881678B2 (ko)
CN (2) CN102934369B (ko)
WO (1) WO2011129583A2 (ko)

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