WO2003071711A3 - Power control for partial channel-state information (csi) multiple-input, multiple-output (mimo) systems - Google Patents

Power control for partial channel-state information (csi) multiple-input, multiple-output (mimo) systems Download PDF

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Publication number
WO2003071711A3
WO2003071711A3 PCT/US2003/005371 US0305371W WO03071711A3 WO 2003071711 A3 WO2003071711 A3 WO 2003071711A3 US 0305371 W US0305371 W US 0305371W WO 03071711 A3 WO03071711 A3 WO 03071711A3
Authority
WO
WIPO (PCT)
Prior art keywords
snr
mimo
setpoint
power control
csi
Prior art date
Application number
PCT/US2003/005371
Other languages
French (fr)
Other versions
WO2003071711A2 (en
Inventor
Irina Medvedev
Jay R Walton
John W Ketchum
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Priority to CA002475515A priority Critical patent/CA2475515A1/en
Priority to KR1020047012605A priority patent/KR101070586B1/en
Priority to MXPA04008007A priority patent/MXPA04008007A/en
Priority to AU2003213217A priority patent/AU2003213217A1/en
Priority to DE60322025T priority patent/DE60322025D1/en
Priority to JP2003570494A priority patent/JP4401784B2/en
Priority to BRPI0307762-4A priority patent/BR0307762A/en
Priority to EP03709263A priority patent/EP1476958B1/en
Publication of WO2003071711A2 publication Critical patent/WO2003071711A2/en
Publication of WO2003071711A3 publication Critical patent/WO2003071711A3/en
Priority to HK05110167.1A priority patent/HK1078190A1/en

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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
    • H04B7/04—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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity

Abstract

Techniques for controlling the transmit power for a number of data streams in a wireless multi-channel (e.g., MIMO) communication system. In one method, a number of received symbol streams are initially processed in accordance with a particular (e.g., CCMI, CCMI-SC, MMSE, or MMSE-SC) receiver processing technique to provide a number of detected data streams. The post-detection SNRs of the detected data streams are estimated, and each SNR that exceeds a setpoint is identified. This setpoint may correspond to (1) the SNR needed to achieve the maximum allowed spectral efficiency or (2) the target SNR needed to achieve a specified spectral efficiency. A new (or adjusted) transmit power for each detected data stream associated with a post-detection SNR that exceeds the setpoint is determined and used for the data stream. Different power control schemes are provided for different classes of receiver processing techniques with different characteristics.
PCT/US2003/005371 2002-02-19 2003-02-19 Power control for partial channel-state information (csi) multiple-input, multiple-output (mimo) systems WO2003071711A2 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
CA002475515A CA2475515A1 (en) 2002-02-19 2003-02-19 Power control for partial channel-state information (csi) multiple-input, multiple-output (mimo) systems
KR1020047012605A KR101070586B1 (en) 2002-02-19 2003-02-19 Power control for partial channel-state information (csi) multiple-input, multiple-output (mimo) systems
MXPA04008007A MXPA04008007A (en) 2002-02-19 2003-02-19 Power control for partial channel-state information (csi) multiple-input, multiple-output (mimo) systems.
AU2003213217A AU2003213217A1 (en) 2002-02-19 2003-02-19 Power control for partial channel-state information (csi) multiple-input, multiple-output (mimo) systems
DE60322025T DE60322025D1 (en) 2002-02-19 2003-02-19 PERFORMANCE CONTROL FOR MULTIPLE INPUT MULTI-OUTPUT SYSTEMS (MIMO) WITH PARTIAL CHANNEL STATUS INFORMATION (CSI)
JP2003570494A JP4401784B2 (en) 2002-02-19 2003-02-19 Power control of partial channel state information (CSI) multiple input multiple output (MIMO) systems
BRPI0307762-4A BR0307762A (en) 2002-02-19 2003-02-19 power control for multi-input and multi-output (maximum) systems with partial channel state information (csi)
EP03709263A EP1476958B1 (en) 2002-02-19 2003-02-19 Power control for partial channel-state information (csi) multiple-input, multiple-output (mimo) systems
HK05110167.1A HK1078190A1 (en) 2002-02-19 2005-11-14 Power control for partial channel-state information (csi) multiple-input, multiple-output (mimo) systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/079,970 2002-02-19
US10/079,970 US7076263B2 (en) 2002-02-19 2002-02-19 Power control for partial channel-state information (CSI) multiple-input, multiple-output (MIMO) systems

Publications (2)

Publication Number Publication Date
WO2003071711A2 WO2003071711A2 (en) 2003-08-28
WO2003071711A3 true WO2003071711A3 (en) 2004-01-08

Family

ID=27733118

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/005371 WO2003071711A2 (en) 2002-02-19 2003-02-19 Power control for partial channel-state information (csi) multiple-input, multiple-output (mimo) systems

Country Status (15)

Country Link
US (2) US7076263B2 (en)
EP (3) EP2259443A3 (en)
JP (2) JP4401784B2 (en)
KR (1) KR101070586B1 (en)
CN (2) CN100448177C (en)
AT (1) ATE400931T1 (en)
AU (1) AU2003213217A1 (en)
BR (1) BR0307762A (en)
CA (1) CA2475515A1 (en)
DE (1) DE60322025D1 (en)
ES (1) ES2309303T3 (en)
HK (1) HK1078190A1 (en)
MX (1) MXPA04008007A (en)
TW (1) TWI311015B (en)
WO (1) WO2003071711A2 (en)

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