KR20140125372A - 안테나 어레이를 가진 기지국에 대한 pmi 및 cqi 피드백의 이득 정규화 보정 - Google Patents

안테나 어레이를 가진 기지국에 대한 pmi 및 cqi 피드백의 이득 정규화 보정 Download PDF

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Publication number
KR20140125372A
KR20140125372A KR1020147022319A KR20147022319A KR20140125372A KR 20140125372 A KR20140125372 A KR 20140125372A KR 1020147022319 A KR1020147022319 A KR 1020147022319A KR 20147022319 A KR20147022319 A KR 20147022319A KR 20140125372 A KR20140125372 A KR 20140125372A
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South Korea
Prior art keywords
precoding matrix
wireless communication
communication device
channel estimate
channel
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Abandoned
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KR1020147022319A
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English (en)
Korean (ko)
Inventor
프랭크 디. 콜린
타일러 에이. 브라운
샌디프 에이치. 크리시나머씨
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모토로라 모빌리티 엘엘씨
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Publication of KR20140125372A publication Critical patent/KR20140125372A/ko
Abandoned legal-status Critical Current

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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
    • H04B7/0621—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
    • H04B7/0621—Feedback content
    • H04B7/0634—Antenna weights or vector/matrix coefficients
    • 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
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel estimation of multiple channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
KR1020147022319A 2012-02-07 2013-01-22 안테나 어레이를 가진 기지국에 대한 pmi 및 cqi 피드백의 이득 정규화 보정 Abandoned KR20140125372A (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US13/367,799 US9294179B2 (en) 2012-02-07 2012-02-07 Gain normalization correction of PMI and COI feedback for base station with antenna array
US13/367,799 2012-02-07
PCT/US2013/022487 WO2013119382A1 (en) 2012-02-07 2013-01-22 Gain normalization correction of pmi and cqi feedback for base station with antenna array

Publications (1)

Publication Number Publication Date
KR20140125372A true KR20140125372A (ko) 2014-10-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020147022319A Abandoned KR20140125372A (ko) 2012-02-07 2013-01-22 안테나 어레이를 가진 기지국에 대한 pmi 및 cqi 피드백의 이득 정규화 보정

Country Status (8)

Country Link
US (1) US9294179B2 (https=)
EP (1) EP2813005B1 (https=)
KR (1) KR20140125372A (https=)
CN (1) CN104170272B (https=)
BR (1) BR112014019469A8 (https=)
MX (1) MX337710B (https=)
TW (1) TWI580209B (https=)
WO (1) WO2013119382A1 (https=)

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KR20170138538A (ko) * 2015-05-22 2017-12-15 모토로라 모빌리티 엘엘씨 결합된 안테나들로 안테나 프리코더 선택을 최적화하기 위한 방법 및 장치

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US11201647B2 (en) * 2016-08-11 2021-12-14 Motorola Mobility Llc Method and apparatus for equal energy codebooks for coupled antennas with transmission lines
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Also Published As

Publication number Publication date
BR112014019469A8 (pt) 2017-07-11
TW201338452A (zh) 2013-09-16
CN104170272B (zh) 2018-07-27
EP2813005A1 (en) 2014-12-17
MX2014009478A (es) 2014-09-22
US9294179B2 (en) 2016-03-22
EP2813005B1 (en) 2019-05-15
TWI580209B (zh) 2017-04-21
WO2013119382A1 (en) 2013-08-15
MX337710B (es) 2016-03-15
US20130202015A1 (en) 2013-08-08
BR112014019469A2 (https=) 2017-06-20
CN104170272A (zh) 2014-11-26

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