TWI355820B - Efficient computation of spatial filter matrices f - Google Patents

Efficient computation of spatial filter matrices f Download PDF

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Publication number
TWI355820B
TWI355820B TW094122216A TW94122216A TWI355820B TW I355820 B TWI355820 B TW I355820B TW 094122216 A TW094122216 A TW 094122216A TW 94122216 A TW94122216 A TW 94122216A TW I355820 B TWI355820 B TW I355820B
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Taiwan
Prior art keywords
matrix
spatial
initial
transmission
channel
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TW094122216A
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English (en)
Chinese (zh)
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TW200635256A (en
Inventor
Mark S Wallace
Jay Rodney Walton
Steven J Howard
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Qualcomm Inc
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Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of TW200635256A publication Critical patent/TW200635256A/zh
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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
    • H04B7/0413—MIMO systems
    • H04B7/0417—Feedback 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
    • H04B7/04—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
    • 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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0848—Joint weighting
    • H04B7/0854—Joint weighting using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • 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
    • H04B7/0697—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 spatial multiplexing

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
TW094122216A 2004-06-30 2005-06-30 Efficient computation of spatial filter matrices f TWI355820B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/882,491 US7110463B2 (en) 2004-06-30 2004-06-30 Efficient computation of spatial filter matrices for steering transmit diversity in a MIMO communication system

Publications (2)

Publication Number Publication Date
TW200635256A TW200635256A (en) 2006-10-01
TWI355820B true TWI355820B (en) 2012-01-01

Family

ID=34979956

Family Applications (2)

Application Number Title Priority Date Filing Date
TW094122216A TWI355820B (en) 2004-06-30 2005-06-30 Efficient computation of spatial filter matrices f
TW100141347A TWI451710B (zh) 2004-06-30 2005-06-30 於一多輸入多輸出（ｍｉｍｏ）通信系統內供引導傳送差異之空間濾波矩陣之有效計算

Family Applications After (1)

Application Number Title Priority Date Filing Date
TW100141347A TWI451710B (zh) 2004-06-30 2005-06-30 於一多輸入多輸出（ｍｉｍｏ）通信系統內供引導傳送差異之空間濾波矩陣之有效計算

Country Status (15)

Country Link
US (2) US7110463B2 (enExample)
EP (1) EP1766807B1 (enExample)
JP (3) JP4833969B2 (enExample)
KR (1) KR100887199B1 (enExample)
CN (1) CN101010890B (enExample)
AU (2) AU2005260035C1 (enExample)
BR (1) BRPI0512808B1 (enExample)
CA (2) CA2727876C (enExample)
ES (1) ES2427934T3 (enExample)
IL (1) IL180340A0 (enExample)
MX (1) MX2007000268A (enExample)
MY (1) MY139975A (enExample)
RU (1) RU2363101C2 (enExample)
TW (2) TWI355820B (enExample)
WO (1) WO2006004706A1 (enExample)

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