Methods, apparatus and articles of manufacture to characterize customer-premises networks

• US 8,515,014 B2
• Filed: 11/30/2009
• Issued: 08/20/2013
• Est. Priority Date: 11/30/2009
• Status: Active Grant

• Current Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Blackburn, Stuart Lynch, Jiang, Baofeng, Savoor, Raghvendra, Wang, Jin
• Primary Examiner(s): Elahee, Md S
• Assistant Examiner(s): Teshale, Akelaw
• Application Number:
  US12/627,600
• Publication Number:
  US 20110129071A1
• Time in Patent Office: 1,359 Days
• Field of Search: 379/1.03, 379/1.04, 379/15.03, 379/90.01, 379/93.05, 379/201.12, 379/2, 379/9, 379/9.03, 379/9.04, 379/10.01, 379/12, 379/14, 379/14.01, 379 2601- 3202, 375/222, 375/213, 375/224, 714/758, 714/25, 714/46, 714/712, 714/715, 714/742, 370241-253
• US Class Current: 379/1.04
• CPC Class Codes: H04M 3/306 for frequencies above the voice frequency, e.g. xDSL line qualification test methods, test equipment and test arrangements for subscriber lines using xDSL modems H04M3/304; systems modifying transmission characteristics according to link quality H04L1/0001; monitoring and/or testing of line transmission systems H04B3/46

Abstract

Methods, apparatus and articles of manufacture to characterize customer-premises networks are disclosed. A disclosed example method comprises retrieving a first plurality of performance parameters for a first time interval for respective ones of a plurality of customer-premises devices, the first plurality of customer-premises devices forming a first customer-premises communication network and each communicatively coupled to a first residential gateway, retrieving a second plurality of performance parameters for a second time interval for the respective ones of the first plurality of devices, computing a first metric representative of a performance variability of the first customer-premises communication network from the first and second plurality of performance parameters, and comparing the first metric to a second metric representative of a second performance variability of a second customer-premises communication network communicatively coupled to a second residential gateway to determine whether the first customer-premises communication network is operating in accordance with a normal operating condition.

Claims

1. A method comprising:

obtaining a first plurality of performance parameters for a first time interval for respective ones of a first plurality of customer-premises devices, wherein the first plurality of customer-premises devices form a first customer-premises communication network and each of the first plurality of customer-premises devices is communicatively coupled to a first residential gateway;

obtaining a second plurality of performance parameters for a second time interval for the respective ones of the first plurality of customer-premises devices;

computing a first performance distribution from the first and second plurality of performance parameters;

computing a first ratio of a first value associated with a first percentile of the first performance distribution and a second value associated with a second percentile of the first performance distribution, the first ratio representative of a first performance variability of the first customer-premises communication network; and

comparing the first performance variability to a second performance variability of a second customer-premises communication network communicatively coupled to a second residential gateway to determine whether the first customer-premises communication network is operating in accordance with a normal operating condition.

2. A method as defined in claim 1, further comprising:

obtaining a third plurality of performance parameters for a third time interval for respective ones of the first plurality of customer-premises devices;

obtaining a fourth plurality of performance parameters for a fourth time interval for respective ones of the first plurality of customer-premises devices;

computing a second performance distribution from the third and fourth plurality of performance parameters;

computing a second ratio of a third value associated with a third percentile of the second performance distribution and a fourth value associated with a fourth percentile of the second performance distribution, the second ratio representative of a third performance variability of the first customer-premises communication network; and

comparing the first and second ratios to determine whether the first customer-premises communication network changed over time.

3. A method as defined in claim 1, further comprising selecting a collection configuration parameter for a third time interval based on the comparison of the first performance variability and the second performance variability.

4. A method as defined in claim 1, wherein the first plurality of performance parameters represents at least one of average noise values, maximum noise values, average error rates, maximum error rates, average data rates, or maximum data rates.

5. A method as defined in claim 1, further comprising configuring firewall port forwarding on the first residential gateway, wherein the first plurality of performance parameters is retrieved at a central office location via the configured firewall port forwarding.

6. A method as defined in claim 1, wherein the first plurality of performance parameters is obtained at a central office location via an application programming interface of at least one of the first residential gateway or the first plurality of customer-premises devices.

7. A tangible machine readable storage device comprising machine readable instructions which, when executed, cause a machine to perform operations comprising:

obtaining a first plurality of performance parameters for a first time interval for respective ones of a first plurality of customer-premises devices, wherein the first plurality of customer-premises devices form a first customer-premises communication network and each of the first plurality of customer-premises devices is communicatively coupled to a first residential gateway;

obtaining a second plurality of performance parameters for the first time interval for the respective ones of a second plurality of customer-premises devices, wherein the second plurality of customer-premises devices form a second customer-premises communication network and each of the second plurality of customer-premises devices are communicatively coupled to a second residential gateway;

computing a first performance distribution from the first performance parameters;

computing a first ratio based on a first percentile of the first performance distribution and a second percentile of the first performance distribution;

computing a second performance distribution from the second performance parameters;

computing a second ratio based on a third percentile of the second performance distribution and a fourth percentile of the second performance distribution; and

comparing the first and second ratios to determine whether the first and second customer-premises communication networks are operating in accordance with a normal operating condition.

8. A tangible storage device as defined in claim 7, wherein the first plurality of performance parameters represents at least one of average noise values, maximum noise values, average error rates, maximum error rates, average data rates, or maximum data rates.

9. A tangible storage device as defined in claim 7, wherein the operations further comprise:

enabling firewall port forwarding on the first residential gateway; and

obtaining the first plurality of performance parameters via the firewall port forwarding.

10. A tangible storage device as defined in claim 7, wherein the operations further comprise accessing an application programming interface of the first residential gateway to obtain the first plurality of performance parameters.

11. A tangible storage device as defined in claim 7, wherein the first time interval occurs prior to an event corresponding at least one of a storm, a software update a configuration change, an installation of another customer-premises device, a temperature change, a replacement of one of the first plurality of customer-premises devices, a technician repair, or a cabling change.

12. An apparatus comprising:

memory comprising machine readable instructions; and

a processor to execute the machine readable instructions to perform operations comprising;

collecting a first plurality of performance parameters for a first time interval for respective ones of a first plurality of customer-premises devices, wherein the first plurality of customer-premises devices form a first customer-premises communication network and each of the first plurality of customer-premises devices is communicatively coupled to a first residential gateway;

collecting a second plurality of performance parameters for a second time interval for the respective ones of the first plurality of customer-premises devices;

computing a first performance distribution from the first and second plurality of performance parameters;

computing a first ratio of a first value associated with a first percentile of the first performance distribution and a second value associated with a second percentile of the first performance distribution, the first ratio representative of a first performance variability of the first customer-premises communication network; and

comparing the first performance variability to a a second performance variability of a second customer-premises communication network communicatively coupled to a second residential gateway to determine whether the first customer-premises communication network is operating in accordance with a normal operating condition.

13. An apparatus as defined in claim 12, wherein the operations further comprise selecting a collection configuration parameter for a third time interval based on the comparison of the first performance variability and the second performance variability.

14. An apparatus as defined in claim 12, wherein the first plurality of performance parameters represents at least one of average noise values, maximum noise values, average error rates, maximum error rates, average data rates, or maximum data rates.