CA2333518A1 - Method and apparatus for digital subscriber loop qualification - Google Patents

Method and apparatus for digital subscriber loop qualification Download PDF

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Publication number
CA2333518A1
CA2333518A1 CA002333518A CA2333518A CA2333518A1 CA 2333518 A1 CA2333518 A1 CA 2333518A1 CA 002333518 A CA002333518 A CA 002333518A CA 2333518 A CA2333518 A CA 2333518A CA 2333518 A1 CA2333518 A1 CA 2333518A1
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CA
Canada
Prior art keywords
loop
substep
digital subscriber
determining
querying
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.)
Granted
Application number
CA002333518A
Other languages
French (fr)
Other versions
CA2333518C (en
Inventor
Elliot Eichen
David L. Brooks
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.)
Verizon Laboratories Inc
Original Assignee
Verizon Laboratories Inc.
Elliot Eichen
David L. Brooks
Gte Laboratories Incorporated
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Filing date
Publication date
Application filed by Verizon Laboratories Inc., Elliot Eichen, David L. Brooks, Gte Laboratories Incorporated filed Critical Verizon Laboratories Inc.
Publication of CA2333518A1 publication Critical patent/CA2333518A1/en
Application granted granted Critical
Publication of CA2333518C publication Critical patent/CA2333518C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
    • 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
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2227—Quality of service monitoring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2209—Arrangements for supervision, monitoring or testing for lines also used for data transmission

Abstract

A system and methodology for qualifying a twisted pair copper loop for digital subscriber loop services are described. The system automatically queries telecommunications provider database records and/or requests measurements from network switching equipment or testing systems to obtain data regarding the twisted pair copper loop, such as loop length, electrical characteristics, and other loop topology characteristics such as wire gauge, the presence of load coils (88, 90), and the presence of bridge taps (84, 86). The system determines which digital subscriber loop services are available for the copper loop based on the combination of all data obtained. The system may be implemented in part as an expert system with a knowledge base of qualification rules used in the decision-making process.

Claims (40)

1. A method for qualifying a twisted pair loop for a digital subscriber service having loop topology restrictions, the method comprising the steps of:
receiving a unique identifier corresponding to the loop;
identifying a topology corresponding to the identified loop; and determining whether the identified loop meets the loop topology restrictions of the digital subscriber service based on the identified topology.
2. The method of claim 1 further including the step of computing a bandwidth that can be supported on the loop in response to the topology.
3. The method of claim 1 wherein the identifying step includes the substeps of determining a length corresponding to the loop and determining a gauge corresponding to the loop.
4. The method of claim 3 wherein the substep of determining a length includes the substeps of requesting a capacitance measurement of the loop from a metallic electrical testing system and converting the capacitance measurement into the length.
5. The method of claim 3 wherein the substep of determining a length includes the substep of requesting a length measurement from a metallic electrical testing system.
6. The method of claim 3 wherein the substep of determining a length includes the substep of querying a database containing a recent length measurement of the loop.
7. The method of claim 3 wherein the substep of determining a length includes the substep of querying a database containing a known length of the loop.
8. The method of claim 3 wherein the substep of determining a gauge includes the substep of querying a topology database containing the gauge of the loop.
9. The method of claim 1 wherein the loop contains a plurality of loop segments, and wherein the identifying step includes the substeps of determining a length corresponding to each of the plurality of loop and segments and determining a gauge corresponding to each of the plurality of loop segments.
10. The method of claim 9 wherein the substep of determining a length includes the substep of querying a database containing the length of each of the plurality of loop segments.
11. The method of claim 9 wherein the substep of determining a gauge includes the substep of querying a database containing the gauge of each of the plurality of loop segments.
12. The method of claim 1 wherein the identifying step includes the substep of querying a database for the position of a bridge tap in the loop.
13. The method of claim 1 wherein the identifying step includes the substep of querying a database for the length of a bridge tap in the loop.
14. The method of claim 1 wherein the identifying step includes the substep of querying a database for the number of bridge taps in the loop.
15. The method of claim 1 wherein the identifying step includes the substep of querying a database for the position of a load coil in the loop.
16. The method of claim 1 wherein the identifying step includes the substep of querying a database for the number of load coils in the loop.
17. The method of claim 1 wherein the identifying step includes the substeps of requesting a load coil measurement of the loop from a test system at a switch connected to the loop.
18. The method of claim 17 wherein the load coil measurement is a swept frequency measurement.
19. The method of claim 17 wherein the load coil measurement is a time domain reflectometry measurement.
20. A method for qualifying a twisted pair loop for a digital subscriber service, the method comprising the steps of:
receiving a unique identifier corresponding to the loop;
identifying a first cable pair and a binder corresponding to the identified loop having the first cable pair corresponding to the identified loop and a second cable pair; and determining wheaher services provided on the second cable pair are compatible with the digital subscriber service.
21. The method of claim 20 wherein the identifying step includes the substep of querying a database correlating the binder to the first and second cable pairs and services provided on the cable pairs, and wherein the determining step includes the substep of querying the database.
22. A method for qualifying a twisted pair loop for a digital subscriber service, the method comprising the steps of:
receiving a unique identifier corresponding to the loop;
identifying a current service on the identified loop; and determining whether the current service is compatible with the digital subscriber service.
23. The method of claim 22 wherein the identifying step includes the substep of querying a database correlating the identifier to the current service on the loop.
24. The method of claim 22 further comprising the step of determining whether the identifier corresponds to a working loop.
25. A method for qualifying a twisted pair loop for a digital subscriber service having longitudinal balance restrictions, the method comprising the steps of:
receiving a unique identifier corresponding to the loop;
requesting a longitudinal balance measurement of the identified loop from a metallic electrical testing system; and determining whether the measurement meets the restrictions.
26. A method for qualifying a twisted pair loop for a digital subscriber service having electrical ingress restrictions, the method comprising the steps of:
receiving a unique identifier corresponding to the loop;
requesting an electrical ingress measurement of the identified loop from a metallic electrical testing system; and determining whether the measurement meets the restrictions.
27. A method for qualifying a twisted pair loop for a digital subscriber service, the method comprising the steps of:
receiving data corresponding to physical characteristics of the loop; and applying a plurality of qualification rules to the data to determine whether the loop is suitable for the digital subscriber service.
28. The method of claim 27 wherein the receiving step includes the substep of receiving data from a metallic loop electrical test system.
29. The method of claim 27 wherein the receiving step includes the substep of receiving data from a database.
30. The method of claim 27 wherein the receiving step includes the substep of receiving data from a switch connected to the loop.
31. The method of claim 27 wherein the applying step is performed by an expert system.
32. A method for qualifying a twisted pair loop for a telecommunications service, the method comprising the steps of:
receiving data corresponding to physical characteristics of the loop; and applying a plurality of qualification rules to the data to determine whether the loop is suitable for the telecommunications service.
33. The method of claim 32 wherein the applying step is performed by an expert system.
34. A system for qualifying a twisted pair loop for a digital subscriber service having loop topology restrictions; the system comprising:
an interface for deceiving a unique identifier corresponding to the loop;
means for identifying a topology corresponding to the identified loop; and means for determining whether the identified loop meets the topology restrictions of the digital subscriber service based on the identified topology.
35. The system of claim 34 wherein the identifying means includes means for querying a database.
36. The system of claim 34 wherein the identifying means includes means for requesting a measurement from a test system.
37. A system for qualifying a twisted pair loop for a digital subscriber service comprising:
means for receiving data corresponding to physical characteristics of the loop; and means for applying a plurality of qualification rules to the data to determine whether the loop is suitable for the digital subscriber service.
38. The system of claim 37 further wherein the means for applying includes an expert system, the expert system including a knowledge base containing the plurality of qualification rules.
39. A system for qualifying a twisted pair loop for a digital subscriber service having loop topology restrictions, said system comprising:
an interface for receiving a unique identifier corresponding to the loop;
a memory comprising a loop qualification program for identifying a topology corresponding to the identified loop, and for determining whether the identified loop meets the loop topology restrictions; and a processor for running the loop qualification program.
40. A system for qualifying a twisted pair loop for a digital subscriber service comprising:
an interface for receiving data corresponding to physical characteristics of the loop;
a memory comprising a knowledge base containing a plurality of rules, and a loop qualification program for applying the plurality of rules; and a processor for running the loop qualification program.
CA002333518A 1998-05-29 1999-05-19 Method and apparatus for digital subscriber loop qualification Expired - Fee Related CA2333518C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/086,386 1998-05-29
US09/086,386 US6292539B1 (en) 1998-05-29 1998-05-29 Method and apparatus for digital subscriber loop qualification
PCT/US1999/011052 WO1999063427A1 (en) 1998-05-29 1999-05-19 Method and apparatus for digital subscriber loop qualification

Publications (2)

Publication Number Publication Date
CA2333518A1 true CA2333518A1 (en) 1999-12-09
CA2333518C CA2333518C (en) 2010-03-09

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CA002333518A Expired - Fee Related CA2333518C (en) 1998-05-29 1999-05-19 Method and apparatus for digital subscriber loop qualification

Country Status (7)

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US (1) US6292539B1 (en)
EP (1) EP1093609B1 (en)
AT (1) ATE326116T1 (en)
AU (1) AU4087599A (en)
CA (1) CA2333518C (en)
DE (1) DE69931259T2 (en)
WO (1) WO1999063427A1 (en)

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Also Published As

Publication number Publication date
EP1093609B1 (en) 2006-05-10
DE69931259D1 (en) 2006-06-14
DE69931259T2 (en) 2007-02-08
WO1999063427A1 (en) 1999-12-09
EP1093609A1 (en) 2001-04-25
AU4087599A (en) 1999-12-20
US6292539B1 (en) 2001-09-18
ATE326116T1 (en) 2006-06-15
CA2333518C (en) 2010-03-09
EP1093609A4 (en) 2004-08-11

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