BRPI0806522A2 - Relatórios de cqi para transmissão mimo em sistema de comunicação sem fio. - Google Patents

Relatórios de cqi para transmissão mimo em sistema de comunicação sem fio.

Info

Publication number
BRPI0806522A2
BRPI0806522A2 BRPI0806522-5A2A BRPI0806522A BRPI0806522A2 BR PI0806522 A2 BRPI0806522 A2 BR PI0806522A2 BR PI0806522 A BRPI0806522 A BR PI0806522A BR PI0806522 A2 BRPI0806522 A2 BR PI0806522A2
Authority
BR
Brazil
Prior art keywords
wireless communication
communication system
mimo transmission
cqi reports
cqi
Prior art date
Application number
BRPI0806522-5A2A
Other languages
English (en)
Inventor
Josef J Blanz
Ivan Jesus Fernandez-Corbaton
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
Publication of BRPI0806522A2 publication Critical patent/BRPI0806522A2/pt
Publication of BRPI0806522B1 publication Critical patent/BRPI0806522B1/pt

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
    • H04B7/06—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
    • H04B7/0413—MIMO systems
    • 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
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0028—Formatting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [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)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
BRPI0806522-5A 2007-01-09 2008-01-08 Relatórios de cqi para transmissão mimo em sistema de comunicação sem fio BRPI0806522B1 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US88420207P 2007-01-09 2007-01-09
US60/884,202 2007-01-09
US11/969,060 2008-01-03
US11/969,060 US8825099B2 (en) 2007-01-09 2008-01-03 CQI reporting for MIMO transmission in a wireless communication system
PCT/US2008/050543 WO2008086374A1 (en) 2007-01-09 2008-01-08 Cqi reporting for mimo transmission in a wireless communication system

Publications (2)

Publication Number Publication Date
BRPI0806522A2 true BRPI0806522A2 (pt) 2014-04-22
BRPI0806522B1 BRPI0806522B1 (pt) 2020-03-24

Family

ID=39328993

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0806522-5A BRPI0806522B1 (pt) 2007-01-09 2008-01-08 Relatórios de cqi para transmissão mimo em sistema de comunicação sem fio

Country Status (10)

Country Link
US (3) US8825099B2 (pt)
EP (1) EP2127132B1 (pt)
JP (1) JP5108027B2 (pt)
KR (1) KR101172128B1 (pt)
CN (1) CN101578776B (pt)
BR (1) BRPI0806522B1 (pt)
CA (2) CA2902072C (pt)
RU (1) RU2420878C2 (pt)
TW (1) TWI352521B (pt)
WO (1) WO2008086374A1 (pt)

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Also Published As

Publication number Publication date
US20080188259A1 (en) 2008-08-07
BRPI0806522B1 (pt) 2020-03-24
US20110286353A1 (en) 2011-11-24
CA2673889C (en) 2015-11-24
TW200838186A (en) 2008-09-16
JP5108027B2 (ja) 2012-12-26
HK1138684A1 (en) 2010-08-27
CN101578776B (zh) 2014-02-26
KR101172128B1 (ko) 2012-08-13
US8831667B2 (en) 2014-09-09
CA2902072C (en) 2018-01-09
TWI352521B (en) 2011-11-11
US8825099B2 (en) 2014-09-02
EP2127132A1 (en) 2009-12-02
US20140334433A1 (en) 2014-11-13
RU2420878C2 (ru) 2011-06-10
CA2902072A1 (en) 2008-07-17
CA2673889A1 (en) 2008-07-17
RU2009130337A (ru) 2011-02-20
JP2010516198A (ja) 2010-05-13
KR20090098921A (ko) 2009-09-17
WO2008086374A1 (en) 2008-07-17
US10511352B2 (en) 2019-12-17
CN101578776A (zh) 2009-11-11
EP2127132B1 (en) 2019-10-02

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