ATE281729T1 - Verfahren und vorrichtung zur schätzung der kovarianzmatrix des übertragungskanals eines umts-systems - Google Patents

Verfahren und vorrichtung zur schätzung der kovarianzmatrix des übertragungskanals eines umts-systems

Info

Publication number
ATE281729T1
ATE281729T1 AT02290443T AT02290443T ATE281729T1 AT E281729 T1 ATE281729 T1 AT E281729T1 AT 02290443 T AT02290443 T AT 02290443T AT 02290443 T AT02290443 T AT 02290443T AT E281729 T1 ATE281729 T1 AT E281729T1
Authority
AT
Austria
Prior art keywords
estimating
covariance matrix
statistics
noise
estimation
Prior art date
Application number
AT02290443T
Other languages
English (en)
Inventor
Pascal Chevalier
Jean-Marie Chaufray
Philippe Loubaton
Original Assignee
Thales Sa
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 Thales Sa filed Critical Thales Sa
Application granted granted Critical
Publication of ATE281729T1 publication Critical patent/ATE281729T1/de

Links

Classifications

    • 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
    • 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
    • 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
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
    • H04L25/0248—Eigen-space methods
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
AT02290443T 2001-02-27 2002-02-22 Verfahren und vorrichtung zur schätzung der kovarianzmatrix des übertragungskanals eines umts-systems ATE281729T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0102653A FR2821502A1 (fr) 2001-02-27 2001-02-27 Procede et dispositif d'estimation d'un canal de propagation a partir de ses statistiques

Publications (1)

Publication Number Publication Date
ATE281729T1 true ATE281729T1 (de) 2004-11-15

Family

ID=8860496

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02290443T ATE281729T1 (de) 2001-02-27 2002-02-22 Verfahren und vorrichtung zur schätzung der kovarianzmatrix des übertragungskanals eines umts-systems

Country Status (6)

Country Link
US (1) US7062227B2 (de)
EP (1) EP1235399B1 (de)
AT (1) ATE281729T1 (de)
CA (1) CA2374095A1 (de)
DE (1) DE60201765T2 (de)
FR (1) FR2821502A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020176485A1 (en) * 2001-04-03 2002-11-28 Hudson John E. Multi-cast communication system and method of estimating channel impulse responses therein
EP1379040A1 (de) * 2002-07-03 2004-01-07 Motorola, Inc. Anordnung und Verfahren zur iterativen Schätzung der Kanalimpulsantwort
US7397842B2 (en) 2003-09-26 2008-07-08 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for combining weight computation in a DS-CDMA RAKE receiver
US7539240B2 (en) 2004-03-12 2009-05-26 Telefonaftiebolaget Lm Ericsson (Publ) Method and apparatus for parameter estimation in a generalized rake receiver
US7848389B2 (en) * 2004-03-12 2010-12-07 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for scaling parameter estimation in parametric generalized rake receivers
US7843834B2 (en) * 2006-09-15 2010-11-30 Itron, Inc. Use of minimal propagation delay path to optimize a mesh network
US8787210B2 (en) 2006-09-15 2014-07-22 Itron, Inc. Firmware download with adaptive lost packet recovery
US8248267B2 (en) 2009-01-29 2012-08-21 Itron, Inc. Systems and methods for improving reception of data in wireless communication environments
US10833799B2 (en) 2018-05-31 2020-11-10 Itron Global Sarl Message correction and dynamic correction adjustment for communication systems

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2715488B1 (fr) 1994-01-21 1996-03-22 Thomson Csf Procédé et dispositif permettant à un modem de se synchroniser sur un transmetteur de données numériques par voie hertzienne en présence de brouilleurs.
GB2286506B (en) * 1994-02-10 1997-12-10 Roke Manor Research Improvements in or relating to co-channel interferance suppression systems
FR2732490B1 (fr) 1995-03-28 1997-04-25 Thomson Csf Procede de reception multicapteur d'une station de base d'un reseau de communication echangeant des donnees avec des mobiles, et dispositif pour sa mise en oeuvre
EP0846378B1 (de) 1995-08-22 1999-10-06 Thomson-Csf Verfahren und anordnung zur räumlichen multiplexierung/demultiplexierung von funksignalen in einem sdma-mobilfunksystem
FR2742619B1 (fr) 1995-12-15 1998-02-06 Thomson Csf Procede d'egalisation multicapteur permettant une reception multicapteur en presence d'interferences et de multitrajets de propagation, et recepteur pour sa mise en oeuvre
US5870430A (en) 1996-12-26 1999-02-09 Thomson-Csf Process for multi-sensor equalisation in a radio receiver in the presence of interference and multiple propagation paths
US5918161A (en) * 1997-01-16 1999-06-29 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method and apparatus for reducing multipath signal error using deconvolution
FR2758926B1 (fr) 1997-01-24 1999-04-30 France Telecom Procede d'egalisation multicapteurs dans un recepteur radioelectrique comportant un nombre determine de voies de reception et recepteur correspondant
FR2762164B1 (fr) * 1997-04-14 1999-09-24 Nortel Matra Cellular Sondage a ponderation temporelle d'un canal de transmission
FR2764074B1 (fr) 1997-06-03 1999-08-20 Thomson Csf Procede et dispositif de radiogoniometrie cooperative en transmission
FR2766320B1 (fr) 1997-07-15 1999-10-15 Thomson Csf Procede et dispositif d'analyse des interferences dans un systeme de radiocommunication cellulaire
US6144710A (en) * 1998-04-23 2000-11-07 Lucent Technologies, Inc. Joint maximum likelihood sequence estimator with dynamic channel description
US6311043B1 (en) * 1998-10-27 2001-10-30 Siemens Aktiengesellschaft Method and measurement configuration for measuring the characteristics of radio channels
US6151368A (en) * 1999-03-22 2000-11-21 Sicom, Inc. Phase-noise compensated digital communication receiver and method therefor
US6434366B1 (en) * 2000-05-31 2002-08-13 Motorola, Inc. Method and system for estimating adaptive array weights used to transmit a signal to a receiver in a wireless communication system

Also Published As

Publication number Publication date
DE60201765D1 (de) 2004-12-09
US7062227B2 (en) 2006-06-13
CA2374095A1 (fr) 2002-08-27
EP1235399B1 (de) 2004-11-03
EP1235399A1 (de) 2002-08-28
DE60201765T2 (de) 2005-12-15
FR2821502A1 (fr) 2002-08-30
US20020150176A1 (en) 2002-10-17

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