HK1088448A1 - Using beamforming and closed loop transmit diversity in a multi-beam antenna system - Google Patents

Using beamforming and closed loop transmit diversity in a multi-beam antenna system

Info

Publication number
HK1088448A1
HK1088448A1 HK06108593.8A HK06108593A HK1088448A1 HK 1088448 A1 HK1088448 A1 HK 1088448A1 HK 06108593 A HK06108593 A HK 06108593A HK 1088448 A1 HK1088448 A1 HK 1088448A1
Authority
HK
Hong Kong
Prior art keywords
beamforming
closed loop
antenna system
transmit diversity
beam antenna
Prior art date
Application number
HK06108593.8A
Other languages
English (en)
Inventor
Bo Goeransson
Bo Hagerman
Andrew Logothetis
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of HK1088448A1 publication Critical patent/HK1088448A1/xx

Links

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
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam 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
    • 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
    • H04B7/0617—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 for beam forming
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
HK06108593.8A 2002-12-23 2006-08-02 Using beamforming and closed loop transmit diversity in a multi-beam antenna system HK1088448A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/328,723 US7151951B2 (en) 2002-12-23 2002-12-23 Using beamforming and closed loop transmit diversity in a multi-beam antenna system
PCT/SE2003/001773 WO2004057775A1 (en) 2002-12-23 2003-11-14 Using beamforming and closed loop transmit diversity in a multi-beam antenna system

Publications (1)

Publication Number Publication Date
HK1088448A1 true HK1088448A1 (en) 2006-11-03

Family

ID=32594560

Family Applications (1)

Application Number Title Priority Date Filing Date
HK06108593.8A HK1088448A1 (en) 2002-12-23 2006-08-02 Using beamforming and closed loop transmit diversity in a multi-beam antenna system

Country Status (13)

Country Link
US (1) US7151951B2 (zh)
EP (1) EP1579597B1 (zh)
JP (1) JP4451789B2 (zh)
KR (1) KR101101057B1 (zh)
CN (1) CN100574146C (zh)
AT (1) ATE331347T1 (zh)
AU (1) AU2003279666A1 (zh)
BR (1) BRPI0317530B1 (zh)
CA (1) CA2507640C (zh)
DE (1) DE60306430T2 (zh)
HK (1) HK1088448A1 (zh)
RU (1) RU2321950C2 (zh)
WO (1) WO2004057775A1 (zh)

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Also Published As

Publication number Publication date
WO2004057775A1 (en) 2004-07-08
BRPI0317530B1 (pt) 2016-10-18
DE60306430T2 (de) 2007-01-11
EP1579597A1 (en) 2005-09-28
ATE331347T1 (de) 2006-07-15
JP4451789B2 (ja) 2010-04-14
RU2005123400A (ru) 2006-01-27
US20040121810A1 (en) 2004-06-24
AU2003279666A1 (en) 2004-07-14
KR101101057B1 (ko) 2011-12-29
CN1732636A (zh) 2006-02-08
US7151951B2 (en) 2006-12-19
RU2321950C2 (ru) 2008-04-10
DE60306430D1 (de) 2006-08-03
CA2507640A1 (en) 2004-07-08
BR0317530A (pt) 2005-11-22
CA2507640C (en) 2014-01-28
EP1579597B1 (en) 2006-06-21
KR20050084437A (ko) 2005-08-26
CN100574146C (zh) 2009-12-23
JP2006512001A (ja) 2006-04-06

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