WO2012020312A3 - A method and device for obtaining enhanced channel quality indicator - Google Patents

A method and device for obtaining enhanced channel quality indicator Download PDF

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Publication number
WO2012020312A3
WO2012020312A3 PCT/IB2011/002072 IB2011002072W WO2012020312A3 WO 2012020312 A3 WO2012020312 A3 WO 2012020312A3 IB 2011002072 W IB2011002072 W IB 2011002072W WO 2012020312 A3 WO2012020312 A3 WO 2012020312A3
Authority
WO
WIPO (PCT)
Prior art keywords
cqi
channel quality
quality indicator
obtaining enhanced
enhanced channel
Prior art date
Application number
PCT/IB2011/002072
Other languages
French (fr)
Other versions
WO2012020312A2 (en
Inventor
Xiaobo Zhang
Yan Zhao
Mingli You
Original Assignee
Alcatel Lucent
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 Alcatel Lucent filed Critical Alcatel Lucent
Publication of WO2012020312A2 publication Critical patent/WO2012020312A2/en
Publication of WO2012020312A3 publication Critical patent/WO2012020312A3/en

Links

Classifications

    • 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
    • H04L1/02—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
    • 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
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • 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
    • H04L25/0204—Channel estimation of multiple channels
    • 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
    • H04L25/0224—Channel estimation using sounding signals
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems

Abstract

The present invention provides a method and device of obtaining enhanced CQI (Channel Quality Indicator), the present invention performs CQI calculation utilizing demodulated reference signal. In addition, besides performing modulation and coding scheme utilizing CQI based on the demodulated reference signal, the calibration for Co MP transmission can also be performed utilizing CQI based on demodulated signal. The calibration for Co MP transmission can also be performed utilizing CQI or other implicit feedback, for example Acknowledge and Not Acknowledge.
PCT/IB2011/002072 2010-08-13 2011-07-29 A method and device for obtaining enhanced channel quality indicator WO2012020312A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010253111.5 2010-08-13
CN201010253111.5A CN102378275B (en) 2010-08-13 2010-08-13 A kind of method and apparatus obtaining the channel quality indication (CQI) information of enhancing

Publications (2)

Publication Number Publication Date
WO2012020312A2 WO2012020312A2 (en) 2012-02-16
WO2012020312A3 true WO2012020312A3 (en) 2012-06-28

Family

ID=45478364

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/002072 WO2012020312A2 (en) 2010-08-13 2011-07-29 A method and device for obtaining enhanced channel quality indicator

Country Status (2)

Country Link
CN (1) CN102378275B (en)
WO (1) WO2012020312A2 (en)

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JP5993238B2 (en) * 2012-07-25 2016-09-14 株式会社Ｎｔｔドコモ COMMUNICATION SYSTEM, BASE STATION DEVICE, TERMINAL DEVICE, AND COMMUNICATION METHOD
CN103634079B (en) * 2012-08-20 2017-02-08 上海贝尔股份有限公司 Method for optimizing wireless link monitoring window parameter in wireless heterogeneous communication network
KR101971079B1 (en) * 2012-09-20 2019-08-13 삼성전자 주식회사 Method and apparatus for transmitting and receivintg feedback information in mobile communication system based on full dimension mimo
CN104247500A (en) * 2012-12-14 2014-12-24 华为技术有限公司 Channel quality indication feedback method, device and user equipment
WO2014089836A1 (en) * 2012-12-14 2014-06-19 华为技术有限公司 Method, apparatus and user equipment for feeding back channel quality instruction
WO2014094294A1 (en) * 2012-12-21 2014-06-26 Broadcom Corporation Method for determining channel quality information (cqi) for physical resource blocks having reduced overhead
KR102055691B1 (en) * 2013-01-03 2019-12-13 인텔 코포레이션 Improved channel quality information feedback techniques
EP2989821B1 (en) * 2013-04-26 2018-07-25 Telefonaktiebolaget LM Ericsson (publ) A method and device for enabling downlink coordinated multipoint communication
JP2017022427A (en) * 2013-11-07 2017-01-26 シャープ株式会社 Communication system, base station device, and terminal device
CN106160803A (en) * 2015-03-30 2016-11-23 北京信威通信技术股份有限公司 The methods, devices and systems of descending channel information are obtained based on channel reciprocity
CN106160823B (en) * 2015-04-03 2021-02-05 索尼公司 Apparatus and method for wireless communication
CN106160924B (en) * 2015-04-07 2019-08-02 中国移动通信集团公司 A kind of method, apparatus of information feedback, terminal and base station
CN106888062B (en) * 2015-12-10 2020-04-10 电信科学技术研究院 CQI estimation and SINR determination method and related equipment
CN107370557B (en) * 2016-05-13 2021-07-16 中兴通讯股份有限公司 Information processing method, base station, terminal and system
CN107370559B (en) * 2016-05-13 2022-04-29 中兴通讯股份有限公司 Feedback method and device of channel state information
CN109150427B (en) * 2017-06-15 2020-06-02 电信科学技术研究院 Signal processing method and device, electronic equipment and computer readable storage medium
WO2019210504A1 (en) * 2018-05-04 2019-11-07 Qualcomm Incorporated Channel quality for multi-beam operation introduction
WO2020019336A1 (en) * 2018-07-27 2020-01-30 Nokia Shanghai Bell Co., Ltd. Method and apparatus for transmiting demodulation reference signal
US11374638B2 (en) 2018-10-05 2022-06-28 Qualcomm Incorporated Channel quality indicator report based on demodulation reference signal
CN109450563B (en) * 2018-10-16 2021-04-30 电子科技大学 WiFi chip phase offset correction method
CN113923749B (en) * 2020-07-10 2023-08-01 北京佰才邦技术股份有限公司 Service cluster selection method and node equipment
CN114337947A (en) * 2020-09-29 2022-04-12 维沃移动通信有限公司 Method and device for determining transmission mode and communication equipment
WO2022240323A1 (en) * 2021-05-10 2022-11-17 Telefonaktiebolaget Lm Ericsson (Publ) Reference signaling for wireless communication
CN116074879A (en) * 2021-10-30 2023-05-05 上海华为技术有限公司 Channel quality detection method and base station

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Also Published As

Publication number Publication date
CN102378275B (en) 2015-08-05
WO2012020312A2 (en) 2012-02-16
CN102378275A (en) 2012-03-14

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