DK2235992T3 - Fremgangsmåder og apparat til kanalkvalitetsindikationstilbagemelding i et kommunikationssystem - Google Patents

Fremgangsmåder og apparat til kanalkvalitetsindikationstilbagemelding i et kommunikationssystem Download PDF

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Publication number
DK2235992T3
DK2235992T3 DK08865616.0T DK08865616T DK2235992T3 DK 2235992 T3 DK2235992 T3 DK 2235992T3 DK 08865616 T DK08865616 T DK 08865616T DK 2235992 T3 DK2235992 T3 DK 2235992T3
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DK
Denmark
Prior art keywords
methods
communication system
channel quality
quality indication
indication feedback
Prior art date
Application number
DK08865616.0T
Other languages
English (en)
Inventor
Zhouyue Pi
Farooq Khan
Jianzhong Zhang
Jiann-An Tsai
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
Application granted granted Critical
Publication of DK2235992T3 publication Critical patent/DK2235992T3/da

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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
    • H04B7/06—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
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/24—Monitoring; Testing of receivers with feedback of measurements to the transmitter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • 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
    • H04L1/0026—Transmission of channel quality indication
    • 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
    • H04L1/0029—Reduction of the amount of signalling, e.g. retention of useful signalling or differential signalling
    • 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
    • H04L1/003—Adaptive formatting arrangements particular to signalling, e.g. variable amount of bits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DK08865616.0T 2007-12-21 2008-12-12 Fremgangsmåder og apparat til kanalkvalitetsindikationstilbagemelding i et kommunikationssystem DK2235992T3 (da)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US856707P 2007-12-21 2007-12-21
US12/232,376 US8699960B2 (en) 2007-12-21 2008-09-16 Methods and apparatus for channel quality indication feedback in a communication system
PCT/KR2008/007382 WO2009082110A2 (en) 2007-12-21 2008-12-12 Methods and apparatus for channel quality indication feedback in a communication system

Publications (1)

Publication Number Publication Date
DK2235992T3 true DK2235992T3 (da) 2019-08-19

Family

ID=40564910

Family Applications (1)

Application Number Title Priority Date Filing Date
DK08865616.0T DK2235992T3 (da) 2007-12-21 2008-12-12 Fremgangsmåder og apparat til kanalkvalitetsindikationstilbagemelding i et kommunikationssystem

Country Status (11)

Country Link
US (3) US8699960B2 (da)
EP (2) EP2235992B1 (da)
JP (2) JP5572554B2 (da)
KR (4) KR101751715B1 (da)
CN (1) CN101953215B (da)
DK (1) DK2235992T3 (da)
HU (1) HUE043638T2 (da)
PL (1) PL2235992T3 (da)
PT (1) PT2235992T (da)
SI (1) SI2235992T1 (da)
WO (1) WO2009082110A2 (da)

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Also Published As

Publication number Publication date
WO2009082110A3 (en) 2009-09-24
KR20160061436A (ko) 2016-05-31
PL2235992T3 (pl) 2019-11-29
PT2235992T (pt) 2019-07-19
JP5572554B2 (ja) 2014-08-13
EP2073417A2 (en) 2009-06-24
KR20150079991A (ko) 2015-07-08
KR20100126278A (ko) 2010-12-01
US20090163142A1 (en) 2009-06-25
EP2235992A2 (en) 2010-10-06
EP2235992A4 (en) 2013-09-18
US20160277092A1 (en) 2016-09-22
KR101751715B1 (ko) 2017-06-28
JP2011509559A (ja) 2011-03-24
JP5815623B2 (ja) 2015-11-17
HUE043638T2 (hu) 2019-08-28
CN101953215B (zh) 2013-06-19
CN101953215A (zh) 2011-01-19
EP2073417A3 (en) 2013-09-18
US10659131B2 (en) 2020-05-19
US9386473B2 (en) 2016-07-05
KR101646099B1 (ko) 2016-08-05
KR20160102322A (ko) 2016-08-29
KR101905042B1 (ko) 2018-10-08
US20140211635A1 (en) 2014-07-31
KR101623136B1 (ko) 2016-05-20
SI2235992T1 (sl) 2019-08-30
WO2009082110A2 (en) 2009-07-02
JP2014017858A (ja) 2014-01-30
US8699960B2 (en) 2014-04-15
EP2235992B1 (en) 2019-05-15

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