KR101234838B1 - 채널 품질 정보 보고 - Google Patents

채널 품질 정보 보고 Download PDF

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Publication number
KR101234838B1
KR101234838B1 KR1020107011167A KR20107011167A KR101234838B1 KR 101234838 B1 KR101234838 B1 KR 101234838B1 KR 1020107011167 A KR1020107011167 A KR 1020107011167A KR 20107011167 A KR20107011167 A KR 20107011167A KR 101234838 B1 KR101234838 B1 KR 101234838B1
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South Korea
Prior art keywords
channel quality
frequency
frequency intervals
quality indicators
intervals
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Korean (ko)
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KR20100082357A (ko
Inventor
카를로 루스치
타리크 타베트
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이세라 인코포레이티드
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    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • 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
    • H04L1/0028—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
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • 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
    • 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
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • 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
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H04L1/0013—Rate matching, e.g. puncturing or repetition of code symbols

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)
KR1020107011167A 2007-10-23 2008-09-18 채널 품질 정보 보고 Active KR101234838B1 (ko)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB0720723.6 2007-10-23
GBGB0720723.6A GB0720723D0 (en) 2007-10-23 2007-10-23 Reporting channel quality information
GB0721188.1 2007-10-29
GB0721188.1A GB2454023B (en) 2007-10-23 2007-10-29 Reporting channel quality information
PCT/EP2008/062460 WO2009053181A1 (en) 2007-10-23 2008-09-18 Reporting channel quality information

Publications (2)

Publication Number Publication Date
KR20100082357A KR20100082357A (ko) 2010-07-16
KR101234838B1 true KR101234838B1 (ko) 2013-02-20

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ID=38829749

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020107011167A Active KR101234838B1 (ko) 2007-10-23 2008-09-18 채널 품질 정보 보고

Country Status (10)

Country Link
US (1) US8767668B2 (https=)
EP (2) EP2213031B1 (https=)
JP (1) JP5501973B2 (https=)
KR (1) KR101234838B1 (https=)
CN (1) CN101919192B (https=)
AT (1) ATE548815T1 (https=)
BR (1) BRPI0818682A2 (https=)
GB (2) GB0720723D0 (https=)
TW (1) TWI521914B (https=)
WO (1) WO2009053181A1 (https=)

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US8782482B2 (en) 2009-07-14 2014-07-15 Intel Corporation Method and system to improve link budget of a wireless system
WO2011093753A1 (en) * 2010-01-27 2011-08-04 Telefonaktiebolaget L M Ericsson (Publ) Adaptive cqi sub band
CN102624501B (zh) * 2011-01-31 2016-11-09 南京中兴新软件有限责任公司 一种发送信道质量指示的方法和装置
CN102684851A (zh) * 2011-03-11 2012-09-19 中兴通讯股份有限公司 信道信息反馈方法及装置
CN103918193B (zh) * 2011-07-13 2016-11-09 华为技术有限公司 用于无线通信系统中的发射方法
KR101284828B1 (ko) * 2011-12-07 2013-07-10 주식회사 케이티 사용자 채널 상태에 따른 반-지속 스케줄링 방법 및 그 방법을 수행하는 기지국 장치
ES2650841T3 (es) * 2012-05-18 2018-01-22 Telefónica S.A. Un método y un sistema para la notificación de CSI en redes de LTE de acuerdo con la movilidad del equipo de usuario
US9503924B2 (en) * 2013-01-18 2016-11-22 Qualcomm Incorporated Interpolation-based channel state information (CSI) enhancements in long-term evolution (LTE)
US20150092825A1 (en) * 2013-09-27 2015-04-02 Qualcomm Incorporated Self-test using internal feedback for transmit signal quality estimation
US9722758B2 (en) * 2015-05-20 2017-08-01 Hong Kong Applied Science and Technology Research Institute Company Limited Channel-quality estimation for a wireless channel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050048861A (ko) * 2003-11-20 2005-05-25 삼성전자주식회사 직교주파수분할다중 시스템에서 부반송파 할당 장치 및방법
KR20050081528A (ko) * 2004-02-14 2005-08-19 삼성전자주식회사 다중반송파 통신시스템을 위한 채널 상태정보 피드백 방법
EP1761097A2 (en) * 2005-08-29 2007-03-07 Samsung Electronics Co.,Ltd. Method and apparatus for transmitting/receiving channel quality information (CQI) in a wireless communication system

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US7126996B2 (en) * 2001-12-28 2006-10-24 Motorola, Inc. Adaptive transmission method
JP4256158B2 (ja) * 2002-12-26 2009-04-22 パナソニック株式会社 無線通信装置及び無線通信方法
EP1690360A1 (en) * 2003-12-03 2006-08-16 Nokia Corporation Exploiting selection diversity in communications systems with non-orthonormal matrix and vector modulation
KR100946923B1 (ko) * 2004-03-12 2010-03-09 삼성전자주식회사 직교 주파수 분할 다중 방식을 사용하는 통신 시스템에서 채널 품질 정보의 송수신 장치 및 방법, 그리고 그에 따른 시스템
DE602004006624T2 (de) * 2004-09-13 2008-01-31 Alcatel Lucent Abschätzung der Übertragungsqualität in einem Funknetz
US8229448B2 (en) * 2005-08-01 2012-07-24 Samsung Electronics Co., Ltd. Apparatus and method for adaptive channel quality feedback in a multicarrier wireless network
KR20070015996A (ko) * 2005-08-02 2007-02-07 삼성전자주식회사 광대역 무선 접속 통신 시스템에서 채널 품질 정보 수신장치 및 방법
JP4703651B2 (ja) 2005-08-04 2011-06-15 パナソニック株式会社 移動局装置、基地局装置、及び通信方法
US8054898B2 (en) * 2005-10-12 2011-11-08 Nortel Networks Limited Multi-user MIMO systems and methods
KR101002897B1 (ko) * 2006-02-15 2010-12-21 한국과학기술원 이동 통신 시스템에서 채널 할당 시스템 및 방법
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
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
US8611259B2 (en) * 2006-09-08 2013-12-17 Samsung Electronics Co., Ltd. Method and system for providing channel state information feedback in a wireless communication system

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
KR20050048861A (ko) * 2003-11-20 2005-05-25 삼성전자주식회사 직교주파수분할다중 시스템에서 부반송파 할당 장치 및방법
KR20050081528A (ko) * 2004-02-14 2005-08-19 삼성전자주식회사 다중반송파 통신시스템을 위한 채널 상태정보 피드백 방법
EP1761097A2 (en) * 2005-08-29 2007-03-07 Samsung Electronics Co.,Ltd. Method and apparatus for transmitting/receiving channel quality information (CQI) in a wireless communication system

Also Published As

Publication number Publication date
CN101919192A (zh) 2010-12-15
JP2011501589A (ja) 2011-01-06
EP2259469B1 (en) 2012-05-23
EP2213031A1 (en) 2010-08-04
WO2009053181A4 (en) 2009-07-23
EP2213031B1 (en) 2012-03-07
US8767668B2 (en) 2014-07-01
EP2259469A1 (en) 2010-12-08
US20100254469A1 (en) 2010-10-07
BRPI0818682A2 (pt) 2015-04-14
KR20100082357A (ko) 2010-07-16
WO2009053181A1 (en) 2009-04-30
CN101919192B (zh) 2015-01-28
ATE548815T1 (de) 2012-03-15
TW200922191A (en) 2009-05-16
GB2454023B (en) 2012-12-26
GB0720723D0 (en) 2007-12-05
JP5501973B2 (ja) 2014-05-28
TWI521914B (zh) 2016-02-11
GB2454023A (en) 2009-04-29
GB0721188D0 (en) 2007-12-05

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