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ATE412284T1 - Verfahren zur übertragung von kanalqualitätsinformationen in einem multiträger- funkkommunikationssystem und entsprechende mobilstation und basisstation - Google Patents

Verfahren zur übertragung von kanalqualitätsinformationen in einem multiträger- funkkommunikationssystem und entsprechende mobilstation und basisstation

Info

Publication number
ATE412284T1
ATE412284T1 AT05300922T AT05300922T ATE412284T1 AT E412284 T1 ATE412284 T1 AT E412284T1 AT 05300922 T AT05300922 T AT 05300922T AT 05300922 T AT05300922 T AT 05300922T AT E412284 T1 ATE412284 T1 AT E412284T1
Authority
AT
Austria
Prior art keywords
base station
samples
quality information
channel quality
channel
Prior art date
Application number
AT05300922T
Other languages
English (en)
Inventor
Gerhard Wunder
Zhoe Chan
Stephen Kaminski
Hajo Bakker
Original Assignee
Alcatel Lucent
Fraunhofer Ges Forschung
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, Fraunhofer Ges Forschung filed Critical Alcatel Lucent
Application granted granted Critical
Publication of ATE412284T1 publication Critical patent/ATE412284T1/de

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
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L2001/125—Arrangements for preventing errors in the return channel
    • 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
    • H04L25/022—Channel estimation of frequency response
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
AT05300922T 2005-11-15 2005-11-15 Verfahren zur übertragung von kanalqualitätsinformationen in einem multiträger- funkkommunikationssystem und entsprechende mobilstation und basisstation ATE412284T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05300922A EP1786133B1 (de) 2005-11-15 2005-11-15 Verfahren zur Übertragung von Kanalqualitätsinformationen in einem Multiträger-Funkkommunikationssystem und entsprechende Mobilstation und Basisstation

Publications (1)

Publication Number Publication Date
ATE412284T1 true ATE412284T1 (de) 2008-11-15

Family

ID=36123875

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05300922T ATE412284T1 (de) 2005-11-15 2005-11-15 Verfahren zur übertragung von kanalqualitätsinformationen in einem multiträger- funkkommunikationssystem und entsprechende mobilstation und basisstation

Country Status (6)

Country Link
US (1) US7675894B2 (de)
EP (1) EP1786133B1 (de)
JP (1) JP4948974B2 (de)
CN (1) CN1980116B (de)
AT (1) ATE412284T1 (de)
DE (1) DE602005010592D1 (de)

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US7961672B2 (en) * 2007-02-23 2011-06-14 Texas Instruments Incorporated CQI feedback for OFDMA systems
US8160601B2 (en) * 2007-06-21 2012-04-17 Elektrobit Wireless Communications Ltd. Method for optimizing spatial modulation in a wireless link and network element thereto
JP5060232B2 (ja) * 2007-09-25 2012-10-31 株式会社日立国際電気 無線通信装置
US8150478B2 (en) * 2008-07-16 2012-04-03 Marvell World Trade Ltd. Uplink power control in aggregated spectrum systems
US8537802B2 (en) 2008-07-23 2013-09-17 Marvell World Trade Ltd. Channel measurements in aggregated-spectrum wireless systems
US20110195735A1 (en) * 2008-08-27 2011-08-11 Ralf Irmer Multiple Power Control Parameter Sets for Wireless Uplink Data Transmission
CN101674165A (zh) * 2008-09-09 2010-03-17 华为技术有限公司 多载波通信系统中信号误差的反馈方法、设备及系统
WO2010061248A1 (en) * 2008-11-28 2010-06-03 Freescale Semiconductor, Inc. Allocation of communication channels
KR101590010B1 (ko) 2009-02-27 2016-01-29 엘지전자 주식회사 무선 통신 시스템에서 하향링크 멀티 캐리어에 대한 채널 품질 정보를 전송하는 방법
US8107888B2 (en) * 2009-03-04 2012-01-31 Clearwire IP Holdings, LLC Communication operating mode selection based on multi-path signal power measurement
US9654187B2 (en) 2009-04-24 2017-05-16 Telefonaktiebolaget Lm Ericsson (Publ) Efficient uplink transmission of channel state information
US8923110B2 (en) 2009-04-24 2014-12-30 Telefonaktiebolaget L M Ericsson (Publ) Channel state information reconstruction from sparse data
US8406326B2 (en) * 2010-05-13 2013-03-26 Telefonaktiebolaget L M Ericsson (Publ) Exploiting channel time correlation to reduce channel state information feedback bitrate
US8526889B2 (en) 2010-07-27 2013-09-03 Marvell World Trade Ltd. Shared soft metric buffer for carrier aggregation receivers
US20120026986A1 (en) * 2010-07-29 2012-02-02 Continuous Computing India Private Ltd. Downlink frequency selective scheduling based on channel quality feedback
CN103609056A (zh) * 2011-03-08 2014-02-26 阿尔卡特朗讯公司 减少异构网络中的断网的方法
WO2014106820A1 (en) 2013-01-04 2014-07-10 Marvell World Trade Ltd. Enhanced buffering of soft decoding metrics
US9872299B1 (en) 2014-12-09 2018-01-16 Marvell International Ltd. Optimized transmit-power allocation in multi-carrier transmission

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FR2671923B1 (fr) * 1991-01-17 1993-04-16 France Etat Dispositif de demodulation coherente de donnees numeriques entrelacees en temps et en frequence, a estimation de la reponse frequentielle du canal de transmission et seuillage, et emetteur correspondant.
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EP1134945B1 (de) * 2000-03-07 2008-05-14 Alcatel Lucent Verfahren zur Bestimmung einer Eigenschaft eines Kanals und Diskreter-Wavelet Empfänger zur Durchführung des Verfahrens
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US7965649B2 (en) * 2005-11-04 2011-06-21 Samsung Electronics Co., Ltd. Apparatus and method for feedback of subcarrier quality estimation in an OFDM/OFDMA system

Also Published As

Publication number Publication date
JP2007143143A (ja) 2007-06-07
EP1786133A1 (de) 2007-05-16
DE602005010592D1 (de) 2008-12-04
JP4948974B2 (ja) 2012-06-06
CN1980116A (zh) 2007-06-13
US7675894B2 (en) 2010-03-09
CN1980116B (zh) 2010-12-15
US20070110100A1 (en) 2007-05-17
EP1786133B1 (de) 2008-10-22

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