DE602006020530D1 - Verfahren und System zum vereinfachten Auswahlschema von einer Benutzergruppe mit endlicher Rate-Kanalzustandsinformationsrückkopplung für FDD Mehrbenutzer-MIMO- Übertragung in der Abwärtsrichtung - Google Patents

Verfahren und System zum vereinfachten Auswahlschema von einer Benutzergruppe mit endlicher Rate-Kanalzustandsinformationsrückkopplung für FDD Mehrbenutzer-MIMO- Übertragung in der Abwärtsrichtung

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Publication number
DE602006020530D1
DE602006020530D1 DE602006020530T DE602006020530T DE602006020530D1 DE 602006020530 D1 DE602006020530 D1 DE 602006020530D1 DE 602006020530 T DE602006020530 T DE 602006020530T DE 602006020530 T DE602006020530 T DE 602006020530T DE 602006020530 D1 DE602006020530 D1 DE 602006020530D1
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DE
Germany
Prior art keywords
state information
channel state
mimo transmission
information feedback
downlink direction
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Legal status (The legal status 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 status listed.)
Active
Application number
DE602006020530T
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English (en)
Inventor
Jun Zheng
Chengjin Zhang
Rooyen Pieter Van
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Broadcom Corp
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Broadcom Corp
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Publication date
Application filed by Broadcom Corp filed Critical Broadcom Corp
Publication of DE602006020530D1 publication Critical patent/DE602006020530D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H04B7/0452—Multi-user MIMO 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
    • 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
    • H04B7/0636—Feedback format
    • H04B7/0643—Feedback on request
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
DE602006020530T 2005-09-21 2006-06-20 Verfahren und System zum vereinfachten Auswahlschema von einer Benutzergruppe mit endlicher Rate-Kanalzustandsinformationsrückkopplung für FDD Mehrbenutzer-MIMO- Übertragung in der Abwärtsrichtung Active DE602006020530D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/232,340 US7826416B2 (en) 2005-09-21 2005-09-21 Method and system for a simplified user group selection scheme with finite-rate channel state information feedback for FDD multiuser MIMO downlink transmission

Publications (1)

Publication Number Publication Date
DE602006020530D1 true DE602006020530D1 (de) 2011-04-21

Family

ID=37600897

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602006020530T Active DE602006020530D1 (de) 2005-09-21 2006-06-20 Verfahren und System zum vereinfachten Auswahlschema von einer Benutzergruppe mit endlicher Rate-Kanalzustandsinformationsrückkopplung für FDD Mehrbenutzer-MIMO- Übertragung in der Abwärtsrichtung

Country Status (5)

Country Link
US (2) US7826416B2 (de)
EP (1) EP1768273B1 (de)
CN (1) CN1937849B (de)
DE (1) DE602006020530D1 (de)
TW (1) TWI350666B (de)

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Also Published As

Publication number Publication date
CN1937849B (zh) 2010-11-10
US7826416B2 (en) 2010-11-02
EP1768273B1 (de) 2011-03-09
EP1768273A3 (de) 2007-11-07
US8503382B2 (en) 2013-08-06
US20110103505A1 (en) 2011-05-05
US20070064829A1 (en) 2007-03-22
TWI350666B (en) 2011-10-11
CN1937849A (zh) 2007-03-28
TW200723916A (en) 2007-06-16
EP1768273A2 (de) 2007-03-28

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