Methods and apparatus to determine digital subscriber line configuration parameters

• US 7,558,213 B2
• Filed: 06/15/2005
• Issued: 07/07/2009
• Est. Priority Date: 06/15/2005
• Status: Expired due to Fees

• Current Assignee: Sbc Knowledge Ventures, L.P.
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Van Slyke, John Porter, Blackburn, Stuart Lynch
• Primary Examiner(s): Shah; Chirag G
• Assistant Examiner(s): Thompson, Jr.; Otis L
• Application Number:
  US11/153,473
• Publication Number:
  US 20070002758A1
• Time in Patent Office: 1,483 Days
• Field of Search: None
• US Class Current: 370/252
• CPC Class Codes: H04L 43/0882 Utilisation of link capacity
• CPC Class Codes: H04M 11/062 using different frequency bands for speech and other data

Abstract

Methods and apparatus to determine digital subscriber line (DSL) configuration parameters based on current and historical DSL performance characteristics are disclosed. A disclosed method comprises obtaining first data representative of a current maximum attainable DSL speed for a telephone line, collecting second data representative of historical maximum attainable DSL speeds for the telephone line, and determining a maximum capable DSL speed for the telephone line based on the first and the second data.

Claims

1. A method comprising

obtaining first data representative of a current digital subscriber line (DSL) performance characteristic;

collecting second data representative of historical values of the DSL performance characteristic; and

determining, by a communication device, a DSL configuration parameter based on the first and the second data, wherein the DSL performance characteristic is a maximum attainable DSL speed;

the DSL configuration parameter represents a maximum capable DSL speed, and wherein determining the maximum capable DSL speed based on the first and the second data comprises determining a minimum in the first and the second data, and wherein determining the maximum capable DSL speed based on the first and the second data further comprises multiplying a scale factor and the minimum in the first and the second data; and

configuring a communication device associated with the current DSL performance characteristic based on the maximum capable DSL speed.

2. A method as defined in claim 1, wherein the second data includes at least one data point;

and further comprising discarding at least one of the at least one data point if either DSL service for a telephone line is reported as malfunctioning, or a DSL configuration parameter for the telephone line is modified.

3. A method as defined in claim 1, wherein the second data corresponds to a time period having a pre-determined characteristic.

4. A method as defined in claim 1, wherein the first data, the second data,and the DSL configuration parameter are associated with a single telephone line.

5. A method as defined in claim 1, wherein the scale factor is selected based upon a number of data points in the second data.

6. A method as defined in claim 1, wherein the DSL performance characteristic is a count of receiver errors over a time period, and wherein the DSL configuration parameter represents whether or not interleaving is enabled for a telephone line.

7. A method as defined in claim 6, wherein adjusting the DSL configuration parameter based on the first and the second data comprises determining a maximum in the first and the second data.

8. A method comprising:

obtaining first data representative of a current digital subscriber line (DSL) performance characteristic;

collecting second data representative of historical values of the DSL performance characteristic; and

determining, by a communication device, a DSL configuration parameter based on the first and the second data, wherein the DSL performance characteristic is a count of receiver errors over a time period; and

wherein the DSL performance characteristic is a count of receiver errors o over a time period; and

wherein the DSL configuration parameter represents whether or not interleaving is enabled for a telephone line, wherein adjusting the DSL configuration parameter based on the first and the second data comprises determining a maximum in the first and the second data, and wherein adjusting the DSL configuration parameter based on the first and the second data further comprises enabling interleaving for the telephone line if the maximum in the first and the second data is greater than a threshold.

9. An article of manufacture storing machine readable instructions which, when executed, cause a machine to:

obtain a first parameter representative of a digital subscriber line (DSL) performance characteristic;

collect additional parameters representative of historical values of the DSL performance characteristic; and

determine a DSL configuration parameter based on the first and the additional parameters,

wherein the DSL performance characteristic is a count of receiver errors over a time period;

wherein the DSL configuration parameter represents interleaving enablement; and

wherein the machine readable instructions, when executed, cause the machine to determine the DSL configuration parameter based on the first and the additional parameters by;

determining a maximum in the first and the additional parameters; and

enabling interleaving if the determined maximum is greater than a threshold.

10. An article of manufacture as defined in claim 9:

wherein the DSL performance characteristic comprises a maximum attainable DSL speed;

wherein the DSL configuration parameter represents a maximum capable DSL speed; and

wherein the machine readable instructions, when executed, cause the machine to determine the DSL configuration parameter based on the first and the additional parameters by determining a minimum in the first and the additional parameters.

11. An article of manufacture as defined in claim 9, wherein the second data includes at least one data point;

and further comprising discarding at least one of the at least one data point if either DSL service for a telephone line is reported as malfunctioning, or a DSL configuration parameter for the telephone line is modified.

12. An article of manufacture as defined in claim 9, wherein the second data corresponds to a time period having a pre-determined characteristic.

13. An article of manufacture as defined in claim 9, wherein the first data, the second data, and the DSL configuration parameter are associated with a single telephone line.

14. An article of manufacture as defined in claim 9, wherein the DSL performance characteristic comprises a maximum attainable DSL speed, and wherein the DSL configuration parameter represents a maximum capable DSL speed.