WO2011118978A3 - 분산 안테나 시스템에서 단말의 피드백 정보 전송 방법 및 장치 - Google Patents

분산 안테나 시스템에서 단말의 피드백 정보 전송 방법 및 장치 Download PDF

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Publication number
WO2011118978A3
WO2011118978A3 PCT/KR2011/001991 KR2011001991W WO2011118978A3 WO 2011118978 A3 WO2011118978 A3 WO 2011118978A3 KR 2011001991 W KR2011001991 W KR 2011001991W WO 2011118978 A3 WO2011118978 A3 WO 2011118978A3
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WO
WIPO (PCT)
Prior art keywords
feedback information
user equipment
antenna system
base station
antenna
Prior art date
Application number
PCT/KR2011/001991
Other languages
English (en)
French (fr)
Other versions
WO2011118978A2 (ko
Inventor
강지원
천진영
김수남
임빈철
박성호
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 US13/637,215 priority Critical patent/US9306649B2/en
Priority to EP11759727.8A priority patent/EP2552032B1/en
Priority to JP2013501187A priority patent/JP5593436B2/ja
Publication of WO2011118978A2 publication Critical patent/WO2011118978A2/ko
Publication of WO2011118978A3 publication Critical patent/WO2011118978A3/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
    • H04B7/022—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
    • 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
    • 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
    • H04B7/0623—Auxiliary parameters, e.g. power control [PCB] or not acknowledged commands [NACK], used as feedback information
    • 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
    • H04B7/0636—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
    • 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
    • H04B7/0645—Variable feedback
    • 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
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0691—Hybrid systems, i.e. switching and simultaneous transmission using subgroups of transmit antennas

Abstract

셀 내에 복수의 안테나가 분산되어 배치되는 분산 안테나 시스템에서 단말의 피드백 정보 전송 방법을 제공한다. 본 발명은 기지국이 상기 단말에게 상기 복수의 안테나 중 적어도 하나의 안테나를 할당하는데 사용되는 제1 피드백 정보를 상기 기지국으로 전송하는 단계; 상기 기지국으로부터 상기 제1 피드백 정보를 기반으로 결정된 안테나 할당 정보를 수신하는 단계; 및 상기 안테나 할당 정보에 의해 할당된 안테나에 대한 채널 상태를 나타내는 제2 피드백 정보를 상기 기지국으로 전송하는 단계를 포함한다.
PCT/KR2011/001991 2010-03-25 2011-03-23 분산 안테나 시스템에서 단말의 피드백 정보 전송 방법 및 장치 WO2011118978A2 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US13/637,215 US9306649B2 (en) 2010-03-25 2011-03-23 Method and apparatus in which user equipment transmits feedback information in a distributed antenna system
EP11759727.8A EP2552032B1 (en) 2010-03-25 2011-03-23 Method and apparatus in which user equipment transmits feedback information in a distributed antenna system
JP2013501187A JP5593436B2 (ja) 2010-03-25 2011-03-23 分散アンテナシステムにおける端末のフィードバック情報送信方法及び装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US31728210P 2010-03-25 2010-03-25
US61/317,282 2010-03-25
KR10-2010-0089201 2010-09-13
KR1020100089201A KR101650955B1 (ko) 2010-03-25 2010-09-13 분산 안테나 시스템에서 단말의 피드백 정보 전송 방법 및 장치

Publications (2)

Publication Number Publication Date
WO2011118978A2 WO2011118978A2 (ko) 2011-09-29
WO2011118978A3 true WO2011118978A3 (ko) 2012-01-26

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PCT/KR2011/001991 WO2011118978A2 (ko) 2010-03-25 2011-03-23 분산 안테나 시스템에서 단말의 피드백 정보 전송 방법 및 장치

Country Status (5)

Country Link
US (1) US9306649B2 (ko)
EP (1) EP2552032B1 (ko)
JP (1) JP5593436B2 (ko)
KR (1) KR101650955B1 (ko)
WO (1) WO2011118978A2 (ko)

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Also Published As

Publication number Publication date
EP2552032A2 (en) 2013-01-30
WO2011118978A2 (ko) 2011-09-29
KR20110107723A (ko) 2011-10-04
EP2552032B1 (en) 2018-08-15
JP2013528001A (ja) 2013-07-04
JP5593436B2 (ja) 2014-09-24
KR101650955B1 (ko) 2016-09-06
US20130010744A1 (en) 2013-01-10
EP2552032A4 (en) 2017-03-22
US9306649B2 (en) 2016-04-05

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