CA2369858C - Systeme et procede de mesures asymetriques servant a determiner la constitution d'une boucle d'abonne - Google Patents

Systeme et procede de mesures asymetriques servant a determiner la constitution d'une boucle d'abonne Download PDF

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Publication number
CA2369858C
CA2369858C CA002369858A CA2369858A CA2369858C CA 2369858 C CA2369858 C CA 2369858C CA 002369858 A CA002369858 A CA 002369858A CA 2369858 A CA2369858 A CA 2369858A CA 2369858 C CA2369858 C CA 2369858C
Authority
CA
Canada
Prior art keywords
loop
echoes
echo
discontinuity
make
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
CA002369858A
Other languages
English (en)
Other versions
CA2369858A1 (fr
Inventor
Stefano Galli
David L. Waring
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Intellectual Ventures II LLC
Original Assignee
Telcordia Technologies Inc
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 Telcordia Technologies Inc filed Critical Telcordia Technologies Inc
Publication of CA2369858A1 publication Critical patent/CA2369858A1/fr
Application granted granted Critical
Publication of CA2369858C publication Critical patent/CA2369858C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • 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
    • H04L1/24—Testing correct operation
    • 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
    • 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
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
    • H04M3/305—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop testing of physical copper line parameters, e.g. capacitance or resistance
    • H04M3/306—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop testing of physical copper line parameters, e.g. capacitance or resistance for frequencies above the voice frequency, e.g. xDSL line qualification
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/08—Indicating faults in circuits or apparatus
    • H04M3/085—Fault locating arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

L'invention concerne un procédé et un système servant à déterminer la constitution d'une boucle d'abonné (220). Le procédé consiste à envoyer des impulsions vers une boucle et à obtenir des données en fonction des signaux reçus en écho, à déterminer (7301) chaque discontinuité de la boucle à partir de ces échos reçus, et à déterminer, sur la base de chaque discontinuité, une fonction de transfert de canal (7305) pour chaque section de boucle précédant la discontinuité. La fonction de transfert est alors utilisée pour synthétiser un filtre inverse (7309), et ce filtre inverse et les données obtenues sont convolutionnées pour toutes les sections de boucle précédant la discontinuité (7313). On peut encore améliorer ce procédé en modélisant des échos parasites et en soustrayant ces échos aux échos produits dans la boucle.
CA002369858A 1999-06-25 2000-06-19 Systeme et procede de mesures asymetriques servant a determiner la constitution d'une boucle d'abonne Expired - Lifetime CA2369858C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US14112199P 1999-06-25 1999-06-25
US60/141,121 1999-06-25
PCT/US2000/016865 WO2001001158A1 (fr) 1999-06-25 2000-06-19 Systeme et procede de mesures asymetriques servant a determiner la constitution d'une boucle d'abonne

Publications (2)

Publication Number Publication Date
CA2369858A1 CA2369858A1 (fr) 2001-01-04
CA2369858C true CA2369858C (fr) 2006-02-21

Family

ID=22494251

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002369858A Expired - Lifetime CA2369858C (fr) 1999-06-25 2000-06-19 Systeme et procede de mesures asymetriques servant a determiner la constitution d'une boucle d'abonne

Country Status (3)

Country Link
EP (1) EP1247110A4 (fr)
CA (1) CA2369858C (fr)
WO (1) WO2001001158A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6865221B2 (en) 2000-01-07 2005-03-08 Aware, Inc. Systems and methods for loop length and bridged tap length determination of a transmission line
US6668041B2 (en) 2001-05-09 2003-12-23 Centillium Communications, Inc. Single ended line probing in DSL system
US6801601B2 (en) * 2000-10-31 2004-10-05 Centillium Communications, Inc. Single ended line probing in DSL system using transformerless hybrid
ATE340439T1 (de) 2001-04-02 2006-10-15 Cit Alcatel Verfahren und gerät zur zugriffnetzwerkidentifikation durch 1- tormessungen
WO2002087103A1 (fr) * 2001-04-19 2002-10-31 Aware, Inc. Procede de mesure en une seule extremite et systeme utilisant une theorie a matrice abcd de ligne d'emission
WO2002089454A2 (fr) * 2001-04-26 2002-11-07 Aware, Inc. Systemes et procedes de caracterisation de boucle a partir de mesures doubles
US6876725B2 (en) 2001-05-09 2005-04-05 Centillium Communications, Inc. Single ended line probing in DSL system
JP2003244034A (ja) * 2002-02-15 2003-08-29 Matsushita Electric Ind Co Ltd 伝送路におけるケーブル組の検査方法及びその装置、ケーブル組の選択方法
EP1385274B1 (fr) * 2002-07-26 2011-01-19 Alcatel Lucent Système de traitement de données pour interpréter l'information d'un réflectomètre
DE60222763T2 (de) 2002-08-05 2008-07-03 Alcatel Lucent Teilnehmeranschlusslokalisierung in einem Teilnehmeranschluss auf der Basis von Messungen des Reflexionszeitbereichs
EP1411361B1 (fr) * 2002-10-18 2006-03-22 Alcatel Prétraitement de signal pour évaluer des attributs d'une ligne de transmission
WO2004104531A2 (fr) * 2003-05-15 2004-12-02 Telcordia Technologies, Inc. Procede et systeme permettant une identification amelioree de la constitution d'une ligne d'abonne asymetrique
WO2006129999A1 (fr) * 2005-05-31 2006-12-07 Snap-On Incorporated Systeme de surveillance de bus reseau
WO2008081215A1 (fr) 2006-12-29 2008-07-10 Telecom Italia S.P.A. Procédé pour l'analyse de statut d'une ligne d'abonné, dans le but de prendre en charge des services de télécommunications à large bande
JP4621266B2 (ja) 2008-03-25 2011-01-26 富士通株式会社 測定方法、エコー発生箇所特定方法、測定装置、およびエコー発生箇所特定装置
CN116520270B (zh) * 2023-07-04 2023-09-05 四川天中星航空科技有限公司 一种基于评估模型的雷达电子战测试方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4630228A (en) * 1982-06-28 1986-12-16 Systron-Donner Corporation Transmission line analyzer for automatically identifying the severities and locations of multiple mismatches
DE4220410C1 (de) * 1992-06-19 1993-11-25 Siemens Ag Verfahren zum Bestimmen eines Fehlers auf einer elektrischen Übertragungsleitung
US5369366A (en) * 1993-02-12 1994-11-29 Cable Repair Systems Corporation Method of finding faults in a branched electrical distribution circuit
US6091713A (en) * 1998-04-13 2000-07-18 Telcordia Technologies, Inc. Method and system for estimating the ability of a subscriber loop to support broadband services
US6292539B1 (en) * 1998-05-29 2001-09-18 Verizon Laboratories Inc. Method and apparatus for digital subscriber loop qualification

Also Published As

Publication number Publication date
EP1247110A4 (fr) 2006-08-09
EP1247110A1 (fr) 2002-10-09
WO2001001158A1 (fr) 2001-01-04
CA2369858A1 (fr) 2001-01-04

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