Method and system to identify a source of signal impairment

Patent metadata

Field	Value
Publication number	US-10367683-B2
Application number	US-201615069169-A
Country	US
Kind code	B2
Filing date	Mar 14, 2016
Priority date	Jul 2, 2010
Publication date	Jul 30, 2019
Grant date	Jul 30, 2019

Abstract

A method and system for managing performance of over a multimedia content distribution network (MCDN), such as a digital subscriber line network, involves receiving an indication of an impairment in network performance from an MCDN client. The MCDN node associated with the client may be identified and a community of MCDN clients coupled to the MCDN node may be further identified Impairment information, representative of MCDN equipment, may be collected for each of the MCDN clients. Detailed network diagnostics and field service may be performed for MCDN clients based on a characterization of the impairment parameters. After remediation of the MCDN node, collection of the impairment information may be terminated.

First claim

What is claimed is:

1. A method comprising:
responsive to receiving an indication of impaired performance from a first client of a multimendia network, analyzing performance of an uplink from the first client;
responsive to detecting the uplink from the first client operating normally, performing node performance operations, wherein the node performance operations include:
identifying a plurality of clients of the multimedia network, wherein the plurality of clients share a network node;
generating a performance profile for one or more of the plurality of clients, wherein each performance profile includes a first parameter obtained by querying customer premises equipment of a corresponding client;
identifying one or more candidate clients from the plurality of clients according to a ranking of impairment data associated with the plurality of clients;
performing diagnostics on the one or more candidate clients; and
predicting, based on the diagnostics, a source of the impaired performance, including predicting whether the impaired performance is attributable to an external source, wherein the external source is external to the multimedia network and electromagnetically coupled to the first client of the multimedia network.

2. The method of claim 1 , wherein the indication of impaired performance is based on a service request from the first client.

3. The method of claim 1 , wherein the network node includes a digital subscriber line access multiplexer.

4. The method of claim 1 , wherein the impaired performance is associated with a digital subscriber line service provided to the first client via a galvanic loop from the network node.

5. The method of claim 1 , wherein the one or more candidate clients are different than the first client.

6. The method of claim 1 , wherein the diagnostics include determining whether the first client and the one or more candidate clients share a proximate network connection.

7. The method of claim 1 , wherein the impairment data indicates a number of re-initializations of a gateway.

8. A system, comprising:
a processor; and
a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising:
responsive to receiving an indication of impaired performance from a first client of a multimedia network, analyzing performance of an uplink from the first client;
responsive to detecting the uplink from the first client operating normally, performing node performance operations, wherein the node performance operations include:
identifying a plurality of clients of the multimedia network, wherein the plurality of clients share a network node;
generating a performance profile for one or more of the plurality of clients, wherein each performance profile includes a first parameter obtained by querying customer premises equipment of a corresponding client;
identifying one or more candidate clients from the plurality of clients according to a ranking of impairment data associated with the plurality of clients;
performing diagnostics on the one or more candidate clients; and
predicting, based on the diagnostics, a source of the impaired performance, including predicting whether the impaired performance is attributable to an external source, wherein the external source is external to the multimedia network and electromagnetically coupled to the first client of the multimedia network.

9. The system of claim 8 , wherein the customer premises equipment comprises a gateway device configured to connect to an access connection to the network node.

10. The system of claim 8 , wherein the network node comprises a digital subscriber line access multiplexer that provides digital subscriber line service to the plurality of clients.

11. The system of claim 8 , wherein the multimedia network comprises a multimedia content distribution network.

12. The system of claim 8 , wherein the identifying the candidate clients includes identifying a second client included in the plurality of clients as a probable contributor to the impaired performance, wherein the second client is different from the first client.

13. The system of claim 8 , wherein identifying the candidate clients includes identifying clients associated with first parameter data that exceeds a threshold value.

14. The system of claim 8 , wherein identifying the candidate clients includes identifying clients associated with a value of the first parameter within a particular percentile of all values of the first parameter.

15. The system of claim 8 , wherein the identifying the candidate clients comprises:
ranking the plurality of clients according to the first parameter; and responsive to determining, based on the ranking, that the network node is operating normally, stopping obtaining values for the first parameter.

16. The system of claim 8 , wherein the identifying the candidate clients is performed responsive to detecting a network uplink associated with the first client operating normally.

17. A non-transitory machine-readable storage medium, comprising executable instructions that, when executed by a processor, facilitate performance of operations, comprising:
responsive to receiving an indication of impaired performance from a first client of a multimedia network, analyzing performance of an uplink from the first client;
responsive to detecting the uplink from the first client operating normally, performing node performance operations, wherein the node performance operations include:
identifying a plurality of clients of the multimedia network, wherein the plurality of clients share a network node;
generating a performance profile for one or more of the plurality of clients, wherein each performance profile includes a first parameter obtained by querying customer premises equipment of a corresponding client;
identifying one or more candidate clients from the plurality of clients according to a ranking of impairment data associated with the plurality of clients;
performing diagnostics on the one or more candidate clients;
predicting, based on the diagnostics, whether the impaired performance is attributable to an external source, wherein the external source is external to the multimedia network and electromagnetically coupled to the first client of the multimedia network.

18. The non-transitory machine-readable storage medium of claim 17 , wherein the one or more candidate clients are selected by:
ranking the plurality of clients according to the impairment data; and
responsive to determining, based on the ranking, that the network node is operating normally, stopping obtaining values for the impairment data.

19. The non-transitory machine-readable storage medium of claim 17 , wherein each of the plurality of clients is a different client than the first client.

20. The non-transitory machine-readable storage medium of claim 17 , wherein the diagnostics include determining whether the first client and the candidate client share a proximate network connection.

Assignees

• At & T Ip I Lp

Inventors

• Beattie Jr James G
• Marsh Edward

Classifications

• H04M11/062

  using different frequency bands for speech and other data · CPC title

• H04L41/065

  involving logical or physical relationship, e.g. grouping and hierarchies · CPC title

• H04M3/304

  and using xDSL modems (xDSL line qualification H04M3/306) · CPC title

• H04L41/0677 Primary

  Localisation of faults · CPC title

• H04L65/80

  Responding to QoS · CPC title