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WO2012039589A3 - 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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Publication number
WO2012039589A3
WO2012039589A3 PCT/KR2011/007019 KR2011007019W WO2012039589A3 WO 2012039589 A3 WO2012039589 A3 WO 2012039589A3 KR 2011007019 W KR2011007019 W KR 2011007019W WO 2012039589 A3 WO2012039589 A3 WO 2012039589A3
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WIPO (PCT)
Prior art keywords
pmi
wireless communication
communication system
multiple antennas
supports multiple
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Ceased
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PCT/KR2011/007019
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English (en)
French (fr)
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WO2012039589A2 (ko
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고현수
김수남
임동국
이문일
정재훈
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LG Electronics Inc
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LG Electronics Inc
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Priority to CN201180046375.6A priority Critical patent/CN103155438B/zh
Priority to JP2013530092A priority patent/JP6002138B2/ja
Priority to EP11827017.2A priority patent/EP2621103B1/en
Publication of WO2012039589A2 publication Critical patent/WO2012039589A2/ko
Publication of WO2012039589A3 publication Critical patent/WO2012039589A3/ko
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • H04B7/0413—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
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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (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, 제 1 서브프레임에서 랭크 지시자(RI)를 전송하는 단계; 및 제 2 서브프레임에서 제 1 프리코딩행렬지시자(PMI), 제 2 PMI 및 광대역 채널품질지시자(CQI)를 전송하는 단계를 포함하고, 상기 제 1 PMI 및 상기 제 2 PMI 의 조합에 의해 단말이 선호하는(preferred) 프리코딩 행렬이 지시되며, 상기 제 1 PMI 및 상기 제 2 PMI 에 대하여 랭크 1 내지 4 각각에 대한 프리코딩 코드북의 서브샘플링된 코드북이 적용되고, 상기 서브샘플링된 코드북에서 랭크 1 내지 4 각각에 대해서 상기 제 1 PMI 및 상기 제 2 PMI는 합하여 4 비트로 구성될 수 있다.
PCT/KR2011/007019 2010-09-26 2011-09-23 다중 안테나 지원 무선 통신 시스템에서 효율적인 피드백 방법 및 장치 Ceased WO2012039589A2 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201180046375.6A CN103155438B (zh) 2010-09-26 2011-09-23 在支持多个天线的无线通信系统中的有效反馈的方法和设备
JP2013530092A JP6002138B2 (ja) 2010-09-26 2011-09-23 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
EP11827017.2A EP2621103B1 (en) 2010-09-26 2011-09-23 Method and apparatus for efficient feedback in a wireless communication system that supports multiple antennas

Applications Claiming Priority (14)

Application Number Priority Date Filing Date Title
US38655210P 2010-09-26 2010-09-26
US61/386,552 2010-09-26
US39011010P 2010-10-05 2010-10-05
US61/390,110 2010-10-05
US41192010P 2010-11-10 2010-11-10
US61/411,920 2010-11-10
US41395110P 2010-11-15 2010-11-15
US61/413,951 2010-11-15
US41437410P 2010-11-16 2010-11-16
US41437210P 2010-11-16 2010-11-16
US61/414,374 2010-11-16
US61/414,372 2010-11-16
KR10-2011-0095682 2011-09-22
KR1020110095682A KR101863927B1 (ko) 2010-09-26 2011-09-22 다중 안테나 지원 무선 통신 시스템에서 효율적인 피드백 방법 및 장치

Publications (2)

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WO2012039589A2 WO2012039589A2 (ko) 2012-03-29
WO2012039589A3 true WO2012039589A3 (ko) 2012-05-31

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Application Number Title Priority Date Filing Date
PCT/KR2011/007018 Ceased WO2012039588A2 (ko) 2010-09-26 2011-09-23 다중 안테나 지원 무선 통신 시스템에서 효율적인 피드백 방법 및 장치
PCT/KR2011/007019 Ceased WO2012039589A2 (ko) 2010-09-26 2011-09-23 다중 안테나 지원 무선 통신 시스템에서 효율적인 피드백 방법 및 장치
PCT/KR2011/007057 Ceased WO2012039591A2 (ko) 2010-09-26 2011-09-26 다중 안테나 지원 무선 통신 시스템에서 효율적인 피드백 방법 및 장치

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