TW201130262A - Method and apparatus for facilitating multicarrier differential channel quality indicator (CQI) feedback - Google Patents

Method and apparatus for facilitating multicarrier differential channel quality indicator (CQI) feedback

Info

Publication number
TW201130262A
TW201130262A TW099114301A TW99114301A TW201130262A TW 201130262 A TW201130262 A TW 201130262A TW 099114301 A TW099114301 A TW 099114301A TW 99114301 A TW99114301 A TW 99114301A TW 201130262 A TW201130262 A TW 201130262A
Authority
TW
Taiwan
Prior art keywords
cqi
base station
feedback
channel quality
quality indicator
Prior art date
Application number
TW099114301A
Other languages
English (en)
Inventor
Jelena M Damnjanovic
Juan Montojo
Avneesh Agrawal
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 TW201130262A publication Critical patent/TW201130262A/zh

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
    • H04L1/0001—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
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2646—Arrangements specific to the transmitter only using feedback from receiver for adjusting OFDM transmission parameters, e.g. transmission timing or guard interval length
TW099114301A 2009-05-04 2010-05-04 Method and apparatus for facilitating multicarrier differential channel quality indicator (CQI) feedback TW201130262A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17539209P 2009-05-04 2009-05-04
US12/640,382 US20100278058A1 (en) 2009-05-04 2009-12-17 Method and apparatus for facilitating multicarrier differential channel quality indicator (cqi) feedback

Publications (1)

Publication Number Publication Date
TW201130262A true TW201130262A (en) 2011-09-01

Family

ID=43030266

Family Applications (1)

Application Number Title Priority Date Filing Date
TW099114301A TW201130262A (en) 2009-05-04 2010-05-04 Method and apparatus for facilitating multicarrier differential channel quality indicator (CQI) feedback

Country Status (7)

Country Link
US (1) US20100278058A1 (zh)
EP (1) EP2427979A1 (zh)
JP (1) JP2012526462A (zh)
KR (1) KR20120005048A (zh)
CN (1) CN102428668A (zh)
TW (1) TW201130262A (zh)
WO (1) WO2010129593A1 (zh)

Families Citing this family (15)

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Publication number Priority date Publication date Assignee Title
US8020075B2 (en) 2007-03-16 2011-09-13 Apple Inc. Channel quality index feedback reduction for broadband systems
US9853847B2 (en) * 2009-12-30 2017-12-26 Mediatek Inc. Measurement and carrier group based optimization in wireless OFDM multi-carrier communication systems
KR20140036322A (ko) * 2011-08-12 2014-03-25 후지쯔 가부시끼가이샤 매핑 관계 설정 방법, 채널 품질 정보 피드백 방법 및 장치
US8761039B2 (en) 2012-03-28 2014-06-24 Apple Inc. Adaptive generation of channel quality indicators (CQIs) based on a current communication scenario
US9161153B2 (en) 2012-06-15 2015-10-13 Industrial Technology Research Institute Method of handling CSI report and related communication device
CN103636253B (zh) * 2012-07-06 2017-06-06 华为技术有限公司 虚拟载波聚合的方法、基站和用户设备
CN103580779B (zh) * 2012-07-20 2017-02-01 电信科学技术研究院 信道质量指示信息上报及确定方法和设备
CN107113661B (zh) * 2014-12-31 2020-07-07 华为技术有限公司 一种预编码矩阵指示pmi的反馈方法和装置
US10122429B2 (en) * 2015-01-16 2018-11-06 Qualcomm Incorporated Channel state information for enhanced carrier aggregation
KR102612167B1 (ko) * 2015-12-16 2023-12-11 한국전자통신연구원 통신 시스템에서 빔 요소 반송파의 전송 우선순위 결정 방법 및 장치
JP7126441B2 (ja) * 2016-03-31 2022-08-26 株式会社Ｎｔｔドコモ 端末、基地局、無線通信システム及び通信方法
GB2562098B (en) * 2017-05-05 2022-02-02 Samsung Electronics Co Ltd Improvements in and relating to channel state feedback in a telecommunication system
CN110535510B (zh) * 2018-08-10 2022-10-18 中兴通讯股份有限公司 一种信道状态信息的上报/处理方法、设备及存储介质
CN115699628A (zh) * 2020-05-13 2023-02-03 高通股份有限公司 用于干扰特定信道状态信息报告的差分模式
US20220124536A1 (en) * 2020-10-20 2022-04-21 Mediatek Singapore Pte. Ltd. Reporting Of Best Wideband CQI In Mobile Communications

Family Cites Families (17)

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Publication number Priority date Publication date Assignee Title
US7457588B2 (en) * 2005-08-01 2008-11-25 Motorola, Inc. Channel quality indicator for time, frequency and spatial channel in terrestrial radio access network
US8054894B2 (en) * 2005-10-31 2011-11-08 Motorola Mobility, Inc. Method and apparatus for providing channel quality feedback in an orthogonal frequency division multiplexing communication system
RU2383995C1 (ru) * 2005-12-23 2010-03-10 Самсунг Электроникс Ко., Лтд. Способ и устройство для представления данных индикатора качества канала
US8014455B2 (en) * 2006-03-27 2011-09-06 Qualcomm Incorporated Feedback of differentially encoded channel state information for multiple-input multiple-output (MIMO) and subband scheduling in a wireless communication system
US7940851B2 (en) * 2006-04-21 2011-05-10 Panasonic Corporation Radio communication apparatus and radio communication method
JP4904994B2 (ja) * 2006-08-25 2012-03-28 富士通東芝モバイルコミュニケーションズ株式会社 移動無線端末装置
US8073069B2 (en) * 2007-01-05 2011-12-06 Apple Inc. Multi-user MIMO-SDMA for finite rate feedback systems
KR20080073196A (ko) * 2007-02-05 2008-08-08 엘지전자 주식회사 Ｍｉｍｏ 시스템에서 효율적인 채널 품질 정보 전송 방법
JP5206921B2 (ja) * 2007-03-16 2013-06-12 日本電気株式会社 移動無線システムにおけるリソース割当制御方法および装置
KR101329854B1 (ko) * 2007-06-05 2013-11-14 엘지전자 주식회사 다중안테나 시스템에서의 제어정보 전송방법
US8942164B2 (en) * 2007-10-22 2015-01-27 Texas Instruments Incorporated Differential CQI for OFDMA systems
KR101293373B1 (ko) * 2007-06-25 2013-08-05 엘지전자 주식회사 다중안테나 시스템에서의 데이터 전송 방법
EP2026488A1 (en) * 2007-08-14 2009-02-18 Panasonic Corporation Contiguous CQI report
RU2481706C2 (ru) * 2007-08-31 2013-05-10 Нокиа Сименс Нетворкс Ой Дифференциальное представление отчета о качестве канала
KR101448622B1 (ko) * 2007-09-21 2014-10-08 엘지전자 주식회사 단말에 의한 채널정보 전송 방법 및 이동 통신 단말
US20090116570A1 (en) * 2007-11-02 2009-05-07 Interdigital Patent Holdings, Inc. Method and apparatus for generating channel quality indicator, precoding matrix indicator and rank information
US20090225738A1 (en) * 2008-03-05 2009-09-10 Sharp Laboratories Of America, Inc. Systems and methods for transmitting channel quality indicators for mutliple sub-bands

Also Published As

Publication number Publication date
EP2427979A1 (en) 2012-03-14
US20100278058A1 (en) 2010-11-04
CN102428668A (zh) 2012-04-25
WO2010129593A1 (en) 2010-11-11
KR20120005048A (ko) 2012-01-13
JP2012526462A (ja) 2012-10-25

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