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WO2009075099A1 - 無線通信端末装置、無線通信基地局装置及びｃｑｉフィードバック方法 - Google Patents

無線通信端末装置、無線通信基地局装置及びｃｑｉフィードバック方法 Download PDF

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Publication number
WO2009075099A1
WO2009075099A1 PCT/JP2008/003671 JP2008003671W WO2009075099A1 WO 2009075099 A1 WO2009075099 A1 WO 2009075099A1 JP 2008003671 W JP2008003671 W JP 2008003671W WO 2009075099 A1 WO2009075099 A1 WO 2009075099A1
Authority
WO
WIPO (PCT)
Prior art keywords
radio communication
terminal
cqi
base station
feedback
Prior art date
Application number
PCT/JP2008/003671
Other languages
English (en)
French (fr)
Inventor
Ryohei Kimura
Seigo Nakao
Masayuki Hoshino
Kenichi Miyoshi
Katsuhiko Hiramatsu
Original Assignee
Panasonic Corporation
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 Panasonic Corporation filed Critical Panasonic Corporation
Priority to JP2009545347A priority Critical patent/JPWO2009075099A1/ja
Priority to US12/745,461 priority patent/US20100309997A1/en
Publication of WO2009075099A1 publication Critical patent/WO2009075099A1/ja

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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

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

　フィードバックオーバーヘッドを削減しつつ、ＣＱＩ再現性を向上させる無線通信端末装置、無線通信基地局装置及びＣＱＩフィードバック方法を提供する。端末チャネル判定部は、自端末がＴＵ端末であるかＬＯＳ端末であるかを判定する。フィードバックＣＱＩ決定部は、自端末がＴＵ端末である場合にＢｅｓｔ－Ｍ報告を選択し、自端末がＬＯＳ端末である場合にＤＣＴ報告を選択し、選択した報告方法によってＣＱＩをフィードバックする。
PCT/JP2008/003671 2007-12-10 2008-12-09 無線通信端末装置、無線通信基地局装置及びｃｑｉフィードバック方法 WO2009075099A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009545347A JPWO2009075099A1 (ja) 2007-12-10 2008-12-09 無線通信端末装置、無線通信基地局装置及びｃｑｉフィードバック方法
US12/745,461 US20100309997A1 (en) 2007-12-10 2008-12-09 Radio communication terminal device, radio communication base station device, and cqi feedback method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-318453 2007-12-10
JP2007318453 2007-12-10

Publications (1)

Publication Number Publication Date
WO2009075099A1 true WO2009075099A1 (ja) 2009-06-18

Family

ID=40755347

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/003671 WO2009075099A1 (ja) 2007-12-10 2008-12-09 無線通信端末装置、無線通信基地局装置及びｃｑｉフィードバック方法

Country Status (3)

Country Link
US (1) US20100309997A1 (ja)
JP (1) JPWO2009075099A1 (ja)
WO (1) WO2009075099A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013507075A (ja) * 2009-10-01 2013-02-28 クゥアルコム・インコーポレイテッド ワイヤレス通信のためのスケーラブルなチャネルフィードバック
US8781005B2 (en) 2009-10-01 2014-07-15 Qualcomm Incorporated Scalable quantization of channel state information for MIMO transmission

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1906577B1 (en) * 2006-09-26 2020-11-04 Optis Wireless Technology, LLC Communication scheme for channel quality information
CN105024878B (zh) * 2015-06-30 2018-07-20 芯海科技（深圳）股份有限公司 一种ofdm集群系统的时延测量方法
CN111917122B (zh) * 2020-06-30 2023-04-18 利天万世(上海)能源科技有限公司 通信基站的削峰填谷电源控制方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007221746A (ja) * 2006-01-18 2007-08-30 Ntt Docomo Inc 通信装置、移動局及び方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007221746A (ja) * 2006-01-18 2007-08-30 Ntt Docomo Inc 通信装置、移動局及び方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
LG ELECTRONICS: "System Level Performance Analysis between Best-M and DCT based CQI reporting schemes", 3GPP RAN WG1 #47BIS, R1-070242, 3GPP, 19 January 2007 (2007-01-19) *
SHARP: "3GPP TSG RAN WG1 Meeting #48, R1-071495, 3GPP", 30 March 2007, article "Consideration on CQI reporting", pages: 1 - 5 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013507075A (ja) * 2009-10-01 2013-02-28 クゥアルコム・インコーポレイテッド ワイヤレス通信のためのスケーラブルなチャネルフィードバック
US8781005B2 (en) 2009-10-01 2014-07-15 Qualcomm Incorporated Scalable quantization of channel state information for MIMO transmission
US9961579B2 (en) 2009-10-01 2018-05-01 Qualcomm Incorporated Scalable channel feedback for wireless communication

Also Published As

Publication number Publication date
US20100309997A1 (en) 2010-12-09
JPWO2009075099A1 (ja) 2011-04-28

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