Automated DSL performance adjustment

• US 8,451,978 B2
• Filed: 02/25/2011
• Issued: 05/28/2013
• Est. Priority Date: 01/20/2004
• Status: Expired due to Fees

• Current Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Jiang, Baofeng Frank, Wu, Xidong, Van Slyke, John Porter, Otsuka, Jim Tidashi
• Primary Examiner(s): TRAN, QUOC DUC
• Application Number:
  US13/035,283
• Publication Number:
  US 20110142206A1
• Time in Patent Office: 823 Days
• Field of Search: 379/1.01, 379/1.03, 379/1.04, 379/22, 379/24, 379/26.01, 379/27.04, 379/28, 379/29.09, 375/224, 375/230
• US Class Current: 379/1.04
• CPC Class Codes: H04M 11/062 using different frequency bands for speech and other data
• CPC Class Codes: H04M 3/2209 for lines also used for data transmission
• CPC Class Codes: H04M 3/305 testing of physical copper line parameters, e.g. capacitance or resistance locating faults in cables G01R31/08

Abstract

A method includes selecting a first set of digital subscriber lines (DSLs) supported by a digital subscriber line access multiplexor (DSLAM). The DSLs of the first set exhibit reduced performance based on historical performance data. The method includes sending a request to the DSLAM for a first performance parameter for each of the DSLs of the first set. The method includes receiving the first performance parameters. The method includes removing DSLs from the first set that have suitable performance based on the first performance parameters to create a second set of DSLs. The method includes selecting a line profile to apply to the second set of DSLs. The method also includes sending a second request to the DSLAM to apply the line profile to the DSLs of the second set and then to determine a second performance parameter for each of the DSLs of the second set.

Claims

1. A method comprising:

selecting a first set of digital subscriber lines supported by a digital subscriber line access multiplexor with a computer system, wherein each digital subscriber line of the first set exhibits reduced performance based on historical performance data;

sending a request to the digital subscriber line access multiplexor from the computer system for a first performance parameter for each digital subscriber line of the first set of digital subscriber lines;

receiving the first performance parameter for each digital subscriber line of the first set of digital subscriber lines at the computer system;

removing digital subscriber lines from the first set of digital subscriber lines that have suitable performance based on the first performance parameter of each of the digital subscriber lines to create a second set of digital subscriber lines with the computer system;

selecting a line profile to apply to the second set of digital subscriber lines with the computer system; and

sending a second request to the digital subscriber line access multiplexor from the computer system to apply the line profile to the digital subscriber lines of the second set of digital subscriber lines and then to determine a second performance parameter for each digital subscriber line of the second set of digital subscriber lines.

2. The method of claim 1, further comprising receiving the historical performance data from a database.

3. The method of claim 1, further comprising receiving a plurality of line profiles from a database.

4. The method of claim 1, further comprising receiving information for each digital subscriber line of the second set of digital subscriber lines.

5. The method of claim 4, wherein the information for a particular digital subscriber line of the second set of digital subscriber lines includes the second parameter when the digital subscriber line access multiplexor is able to apply the line profile to the particular digital subscriber line, and wherein the information includes an error indication when the digital subscriber line access multiplexor is not able to apply the line profile to the particular digital subscriber line.

6. The method of claim 1, further comprising sending a report to a terminal.

7. The method of claim 6, wherein the report includes a matrix that shows performance before and after application of the line profile, information that identifies the second set of digital subscriber lines, information that identifies digital subscriber lines that have unsuitable performance after application of the line profile, and information that identifies digital subscriber lines that have suitable performance after application of the line profile.

8. A system comprising:

a computer system coupled to a digital subscriber line access multiplexor, the computer system operable to;

evaluate historical performance data of digital subscriber lines supported by the digital subscriber line access multiplexor to determine a first set of digital subscriber lines with reduced performance;

send the digital subscriber line access multiplexor a first request to receive a first performance parameter for each digital subscriber line of the first set of digital subscriber lines;

remove at least one digital subscriber line from the first set of digital subscriber lines of digital subscriber lines that have suitable performance based on the first performance parameter corresponding to the at least one digital subscriber line to create a second set of digital subscriber lines;

select a line profile to apply to each digital subscriber line of the second set of digital subscriber lines; and

send a second request to the digital subscriber line access multiplexor to apply the line profile to each digital subscriber line of the second set of digital subscriber lines and to determine a second performance parameter for each digital subscriber line of the second set of digital subscriber lines after application of the line profile.

9. The system of claim 8, further comprising the digital subscriber line access multiplexor.

10. The system of claim 8, further comprising a database coupled to the computer system.

11. The system of claim 10, wherein the database comprises historical digital subscriber line performance data.

12. The system of claim 10, wherein the database comprises a line profile database.

13. The system of claim 8, wherein the computer system is further operable to receive information about each digital subscriber line of the second set of digital subscriber lines after the second request is sent, wherein the information for a particular digital subscriber line includes the second parameter when the digital subscriber line access multiplexor is able to apply the line profile to the particular digital subscriber line, and wherein the information includes an error indication when the digital subscriber line access multiplexor is not able to apply the line profile to the particular digital subscriber line.

14. The system of claim of claim 8, wherein the computer system is further operable to provide a report to a terminal.

15. A method comprising:

receiving identification information for a first set of digital subscriber lines at a digital subscriber line access multiplexor from a control system;

measuring a first performance parameter for each digital subscriber line of the first set of digital subscriber lines with the digital subscriber line access multiplexor;

receiving identification information at the digital subscriber line access multiplexor for a second set of digital subscriber lines from the control system, wherein the second set of digital subscriber lines includes digital subscriber lines of the first set of digital subscriber lines having first performance parameters that indicate unsuitable performance;

applying a line profile received from the control system to each digital subscriber line identified in the second set of digital subscriber lines with the digital subscriber line access multiplexor; and

measuring a second performance parameter for each digital subscriber line of the second set of digital subscriber lines with the digital subscriber line access multiplexor.

16. The method of claim 15, further comprising sending the first performance parameter for each digital subscriber line of the first set of digital subscriber lines to the control system.

17. The method of claim 15, further comprising sending the second performance parameter for each digital subscriber line of the second set of digital subscriber lines to the control system.

18. The method of claim 15, further comprising sending an error indication to the control system for a particular digital subscriber line when application of the line profile to each digital subscriber line identified in the second set of digital subscriber lines fails.

19. The method of claim 15, wherein applying the line profile changes an initial line profile to a reduced speed profile.

20. The method of claim 15, wherein applying the line profile changes an initial line profile to a channel interleaved profile.