WO2012102479A3 - 무선 통신 시스템에서 채널 상태 정보를 보고하는 방법 및 이를 위한 장치 - Google Patents

무선 통신 시스템에서 채널 상태 정보를 보고하는 방법 및 이를 위한 장치 Download PDF

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Publication number
WO2012102479A3
WO2012102479A3 PCT/KR2011/009535 KR2011009535W WO2012102479A3 WO 2012102479 A3 WO2012102479 A3 WO 2012102479A3 KR 2011009535 W KR2011009535 W KR 2011009535W WO 2012102479 A3 WO2012102479 A3 WO 2012102479A3
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WO
WIPO (PCT)
Prior art keywords
channel state
state information
wireless communication
communication system
pmi
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Ceased
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PCT/KR2011/009535
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English (en)
French (fr)
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WO2012102479A2 (ko
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박종현
김기준
이승민
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LG Electronics Inc
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LG Electronics Inc
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Priority to US13/979,872 priority Critical patent/US9288691B2/en
Publication of WO2012102479A2 publication Critical patent/WO2012102479A2/ko
Publication of WO2012102479A3 publication Critical patent/WO2012102479A3/ko
Anticipated expiration legal-status Critical
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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
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • 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
    • H04B7/06—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
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • 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
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • 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
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • 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
    • H04L2001/0092—Error control systems characterised by the topology of the transmission link

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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)
  • Mobile Radio Communication Systems (AREA)

Abstract

본 출원에서는 CoMP(Coordinated Multi Point) 전송을 지원하는 무선 통신 시스템에서 단말이 채널 상태 정보를 보고하는 방법이 개시된다. 구체적으로, 서빙 셀 및 하나 이상의 협력 셀로부터 참조 신호를 수신하는 단계, 상기 참조 신호에 기반하여, 상기 CoMP 전송을 위한 채널 상태 정보를 구성하는 단계, 및 상기 채널 상태 정보를 상향링크 물리 공용 채널(Physical Uplink Shared CHannel)을 통하여 상기 서빙 셀로 보고하는 단계를 포함하고, 상기 채널 상태 정보는 채널 품질 지시자(Channel Quality Indicator; CQI) 정보 및 프리코딩 행렬 인덱스(Precoding Matrix Index; PMI) 정보를 포함하고, 상기 CQI 정보는 광대역(Wideband) CQI 및 상기 CoMP 전송을 위하여 선택된 서브밴드 각각에 대한 CQI를 포함하며, 상기 PMI 정보는 광대역(Wideband) PMI 및 상기 선택된 서브밴드 각각에 대한 PMI를 포함하는 것을 특징으로 한다.
PCT/KR2011/009535 2011-01-24 2011-12-12 무선 통신 시스템에서 채널 상태 정보를 보고하는 방법 및 이를 위한 장치 Ceased WO2012102479A2 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/979,872 US9288691B2 (en) 2011-01-24 2011-12-12 Method for reporting channel state information in wireless communication system and apparatus therefor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161435761P 2011-01-24 2011-01-24
US61/435,761 2011-01-24

Publications (2)

Publication Number Publication Date
WO2012102479A2 WO2012102479A2 (ko) 2012-08-02
WO2012102479A3 true WO2012102479A3 (ko) 2012-09-20

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PCT/KR2011/009535 Ceased WO2012102479A2 (ko) 2011-01-24 2011-12-12 무선 통신 시스템에서 채널 상태 정보를 보고하는 방법 및 이를 위한 장치

Country Status (2)

Country Link
US (1) US9288691B2 (ko)
WO (1) WO2012102479A2 (ko)

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US8797966B2 (en) 2011-09-23 2014-08-05 Ofinno Technologies, Llc Channel state information transmission
US8879496B2 (en) 2011-12-19 2014-11-04 Ofinno Technologies, Llc Beamforming codeword exchange between base stations
US9407343B2 (en) 2012-08-31 2016-08-02 Google Technology Holdings LLC Method and apparatus for mitigating downlink interference
GB2509973A (en) * 2013-01-21 2014-07-23 Sony Corp Reporting channel state information in a wireless communications system
WO2014129842A1 (ko) * 2013-02-24 2014-08-28 엘지전자 주식회사 무선 통신 시스템에서 랭크 인덱스의 비트 길이를 결정하는 방법 및 장치
CN104509187B (zh) * 2013-05-10 2018-04-27 华为技术有限公司 一种信道质量指示cqi的上报方法及用户设备
WO2015012636A1 (ko) * 2013-07-25 2015-01-29 엘지전자 주식회사 무선 통신 시스템에서 채널 상태 정보 송수신 방법 및 장치
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US20130294393A1 (en) 2013-11-07
US9288691B2 (en) 2016-03-15

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