CN1192506C - 除利用导频符号外还利用其它预定义符号的cdma系统的信道估计 - Google Patents

除利用导频符号外还利用其它预定义符号的cdma系统的信道估计 Download PDF

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Publication number
CN1192506C
CN1192506C CN 99816221 CN99816221A CN1192506C CN 1192506 C CN1192506 C CN 1192506C CN 99816221 CN99816221 CN 99816221 CN 99816221 A CN99816221 A CN 99816221A CN 1192506 C CN1192506 C CN 1192506C
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CN
China
Prior art keywords
channel
symbol
channel estimation
estimation value
predefine
Prior art date
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Expired - Fee Related
Application number
CN 99816221
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English (en)
Chinese (zh)
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CN1334997A (zh
Inventor
H·卡范德
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Telefonaktiebolaget LM Ericsson AB
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Telefonaktiebolaget LM Ericsson AB
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Application filed by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of CN1334997A publication Critical patent/CN1334997A/zh
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Publication of CN1192506C publication Critical patent/CN1192506C/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • 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
    • H04L25/0212—Channel estimation of impulse response
    • H04L25/0214—Channel estimation of impulse response of a single coefficient
    • 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
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
CN 99816221 1998-12-16 1999-12-16 除利用导频符号外还利用其它预定义符号的cdma系统的信道估计 Expired - Fee Related CN1192506C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US21225898A 1998-12-16 1998-12-16
US09/212,258 1998-12-16

Publications (2)

Publication Number Publication Date
CN1334997A CN1334997A (zh) 2002-02-06
CN1192506C true CN1192506C (zh) 2005-03-09

Family

ID=22790260

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 99816221 Expired - Fee Related CN1192506C (zh) 1998-12-16 1999-12-16 除利用导频符号外还利用其它预定义符号的cdma系统的信道估计

Country Status (7)

Country Link
JP (1) JP2002533007A (fr)
CN (1) CN1192506C (fr)
AU (1) AU3092600A (fr)
DE (1) DE19983814T1 (fr)
GB (1) GB2363553B (fr)
MY (1) MY130820A (fr)
WO (1) WO2000036760A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001186082A (ja) * 1999-12-24 2001-07-06 Matsushita Electric Ind Co Ltd Ｃｄｍａ移動通信システム及び方法
FR2814011B1 (fr) * 2000-09-14 2003-10-24 France Telecom Procede d'estimation optimale d'un canal de propagation reposant uniquement sur les symboles pilotes et estimateur correspondant
CN1157880C (zh) * 2000-09-25 2004-07-14 华为技术有限公司 多时隙功率控制方法
CN1188957C (zh) * 2000-11-09 2005-02-09 连宇通信有限公司 信道估计方法及装置
EP1263179B1 (fr) * 2001-05-29 2007-06-27 Lucent Technologies Inc. Estimation de canal dans un système CDMA utilisant des symboles de service codés comme symboles pilotes supplémentaires
JP3562502B2 (ja) * 2001-09-27 2004-09-08 日本電気株式会社 Ｃｄｍａ受信装置及びその装置のチャネル推定方法
AU2002349441A1 (en) * 2002-08-06 2004-02-23 Zte Corporation A method of channel estimation in wideband cdma communication
FR2851383A1 (fr) * 2003-02-17 2004-08-20 Wavecom Procede de transmission de donnees radio, signal, systeme et dispositifs correspondant
US7366137B2 (en) 2003-05-31 2008-04-29 Qualcomm Incorporated Signal-to-noise estimation in wireless communication devices with receive diversity
CN100362762C (zh) * 2003-12-29 2008-01-16 华为技术有限公司 一种实现数据信号模式判决的装置及方法
EP2753036B1 (fr) 2013-01-08 2016-09-07 Freescale Semiconductor, Inc. Évaluation de canal pour communication sans fil
US9118515B2 (en) 2014-01-08 2015-08-25 Freescale Semiconductor, Inc. Channel estimation in wireless communication
CN105282059A (zh) 2014-06-30 2016-01-27 深圳市中兴微电子技术有限公司 一种多径选择方法和设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5263026A (en) * 1991-06-27 1993-11-16 Hughes Aircraft Company Maximum likelihood sequence estimation based equalization within a mobile digital cellular receiver
CN1082757C (zh) * 1994-06-22 2002-04-10 Ntt移动通信网株式会社 用于数字通信接收机的相干检测器和相干检测方法
US5619524A (en) * 1994-10-04 1997-04-08 Motorola, Inc. Method and apparatus for coherent communication reception in a spread-spectrum communication system
FR2747870B1 (fr) * 1996-04-19 1998-11-06 Wavecom Sa Signal numerique a blocs de reference multiples pour l'estimation de canal, procedes d'estimation de canal et recepteurs correspondants

Also Published As

Publication number Publication date
WO2000036760A1 (fr) 2000-06-22
DE19983814T1 (de) 2001-12-13
AU3092600A (en) 2000-07-03
GB0116741D0 (en) 2001-08-29
GB2363553B (en) 2003-12-03
JP2002533007A (ja) 2002-10-02
GB2363553A (en) 2001-12-19
MY130820A (en) 2007-07-31
CN1334997A (zh) 2002-02-06

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