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 PDFInfo
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
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- 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
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- 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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100683289B1 (ko) | 2000-01-07 | 2007-02-15 | 어웨어, 인크. | 전송회선의 루프 길이 및 브리지형 탭 길이를 결정하기위한 시스템 및 방법과 정보 저장매체 |
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 |
US20030002658A1 (en) * | 2001-04-19 | 2003-01-02 | Aware, Inc. | Forward model computation in single-ended time domain loop characterization using ABCD-matrix theory of transmission lines |
KR20040015141A (ko) * | 2001-04-26 | 2004-02-18 | 어웨어, 인크. | 양단 측정으로부터의 루프 특성을 위한 시스템 및 방법 |
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 |
DE60238976D1 (de) * | 2002-07-26 | 2011-03-03 | Alcatel Lucent | Datenverarbeitungssystem zum Intepretieren von Reflexionsmessungsinformation |
EP1388953B1 (fr) | 2002-08-05 | 2007-10-03 | Alcatel Lucent | Localisation d'abonné dans une bouble locale à l'aide de mesures par réflectométrie |
ATE321273T1 (de) | 2002-10-18 | 2006-04-15 | Cit Alcatel | Signalvorverarbeitung zur bestimmung der eigenschaften einer übertragungsleitung |
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 |
US8553845B2 (en) | 2006-12-29 | 2013-10-08 | Telecom Italia S.P.A. | Method for the status analysis of a subscriber loop to support broadband telecommunication services |
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)
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 |
-
2000
- 2000-06-19 WO PCT/US2000/016865 patent/WO2001001158A1/fr active Application Filing
- 2000-06-19 CA CA002369858A patent/CA2369858C/fr not_active Expired - Lifetime
- 2000-06-19 EP EP00942949A patent/EP1247110A4/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
CA2369858A1 (fr) | 2001-01-04 |
WO2001001158A1 (fr) | 2001-01-04 |
EP1247110A1 (fr) | 2002-10-09 |
EP1247110A4 (fr) | 2006-08-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request |