WO2011152638A3 - 차분 선부호화 방법 및 그 방법을 지원하는 기지국 - Google Patents

차분 선부호화 방법 및 그 방법을 지원하는 기지국 Download PDF

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Publication number
WO2011152638A3
WO2011152638A3 PCT/KR2011/003952 KR2011003952W WO2011152638A3 WO 2011152638 A3 WO2011152638 A3 WO 2011152638A3 KR 2011003952 W KR2011003952 W KR 2011003952W WO 2011152638 A3 WO2011152638 A3 WO 2011152638A3
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WO
WIPO (PCT)
Prior art keywords
base station
precoding matrix
station supporting
supporting same
channel
Prior art date
Application number
PCT/KR2011/003952
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English (en)
French (fr)
Other versions
WO2011152638A2 (ko
Inventor
이충구
오정환
윤석현
Original Assignee
(주)휴맥스
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 (주)휴맥스 filed Critical (주)휴맥스
Priority to US13/701,413 priority Critical patent/US8976779B2/en
Priority to EP11789996.3A priority patent/EP2579472B8/en
Priority to CN201180027563.4A priority patent/CN103004104B/zh
Publication of WO2011152638A2 publication Critical patent/WO2011152638A2/ko
Publication of WO2011152638A3 publication Critical patent/WO2011152638A3/ko

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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
    • H04B7/06—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
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0482—Adaptive codebooks
    • 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
    • H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode 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
    • H04B7/0641—Differential 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
    • H04B7/0413—MIMO systems
    • H04B7/0452—Multi-user MIMO systems

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

Abstract

사용자간 간섭을 줄이고 전송율의 총합을 증가시킬 수 있는 본 발명의 일 측면에 따른 차분 선부호화 방법은, 단말과 기지국 간의 채널에 대한 제1 PMI를 이용하여 프리코딩 행렬을 초기화하는 단계; 및 상기 채널의 상태 변화 속도에 따라 상기 프리코딩 행렬을 적응적으로 업데이트시키기 위한 보조정보 및 상기 채널에 대한 제2 PMI를 이용하여 상기 프리코딩 행렬을 업데이트하는 단계를 포함하고, 상기 보조정보는 양자화된 스칼라 값인 것을 특징으로 한다.
PCT/KR2011/003952 2010-06-03 2011-05-30 차분 선부호화 방법 및 그 방법을 지원하는 기지국 WO2011152638A2 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US13/701,413 US8976779B2 (en) 2010-06-03 2011-05-30 Method for differential precoding and base station supporting same
EP11789996.3A EP2579472B8 (en) 2010-06-03 2011-05-30 Method for differential precoding and base station supporting same
CN201180027563.4A CN103004104B (zh) 2010-06-03 2011-05-30 差分预编码方法和支持该方法的基站

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20100052380 2010-06-03
KR10-2010-0052380 2010-06-03
KR10-2011-0049542 2011-05-25
KR20110049542A KR101231487B1 (ko) 2010-06-03 2011-05-25 차분 선부호화 방법 및 그 방법을 지원하는 기지국

Publications (2)

Publication Number Publication Date
WO2011152638A2 WO2011152638A2 (ko) 2011-12-08
WO2011152638A3 true WO2011152638A3 (ko) 2012-03-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2011/003952 WO2011152638A2 (ko) 2010-06-03 2011-05-30 차분 선부호화 방법 및 그 방법을 지원하는 기지국

Country Status (5)

Country Link
US (1) US8976779B2 (ko)
EP (1) EP2579472B8 (ko)
KR (1) KR101231487B1 (ko)
CN (1) CN103004104B (ko)
WO (1) WO2011152638A2 (ko)

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Also Published As

Publication number Publication date
CN103004104B (zh) 2015-06-03
KR101231487B1 (ko) 2013-02-07
US8976779B2 (en) 2015-03-10
KR20110132979A (ko) 2011-12-09
EP2579472A4 (en) 2013-12-04
WO2011152638A2 (ko) 2011-12-08
CN103004104A (zh) 2013-03-27
US20130070723A1 (en) 2013-03-21
EP2579472B8 (en) 2016-06-01
EP2579472A2 (en) 2013-04-10
EP2579472B1 (en) 2016-03-23

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