Systems and methods to select peered border elements for an IP multimedia session based on quality-of-service

• US 9,521,081 B2
• Filed: 12/04/2015
• Issued: 12/13/2016
• Est. Priority Date: 02/26/2008
• 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: Ku, Bernard, Jackson, James, Yasrebi, Mehrad
• Primary Examiner(s): Chu, Wutchung
• Application Number:
  US14/959,980
• Publication Number:
  US 20160087903A1
• Time in Patent Office: 375 Days
• Field of Search: 370/252, 370/389, 370/356, 370/352, 370/401
• US Class Current: 1/1
• CPC Class Codes: H04L 47/12 Avoiding congestion; Recovering from congestion
• CPC Class Codes: H04L 47/24 Traffic characterised by specific attributes, e.g. priority or QoS
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/80 Responding to QoS

Abstract

Systems and methods to select peered border elements for a communication session based on Quality-of-Service (QoS) are disclosed. An example method includes selecting a peered border element to handle a communication session based on a list of peered border elements (PBEs) and a composite QoS parameter of the communication session, the list of PBEs being prioritized based on respective statuses of PBEs in the list, the first composite QoS parameter being based on weighted QoS parameters of the communication session including a grade of service (GoS) parameter of the communication session and a preferred mode of communication for a VoIP device of a called party in the communication session, the GoS parameter including an attempted performance range and an expected performance range of the communication session; and controlling a second server to generate a QoS authorization token to reserve network resources associated with the selected PBE.

Claims

1. A method to assign peered border elements to a communication session, comprising:

selecting, by executing a first instruction with a processor, a peered border element to handle a communication session based on a list of peered border elements and a first composite quality-of-service parameter of the communication session, the list of peered border elements being prioritized based on respective statuses of the peered border elements in the list, the first composite quality-of-service parameter being based on weighted quality-of-service parameters of the communication session including a grade of service parameter of the communication session and a preferred mode of communication for a voice over Internet protocol device of a called party in the communication session, the grade of service parameter including an attempted performance range and an expected performance range of the communication session, the grade of service parameter being based on a level of service for the communication session, and the preferred mode of communication indicating one of multiple devices at which the called party prefers to be reached; and

controlling, by executing a second instruction with the processor, a second server to generate a quality-of-service authorization token to reserve network resources associated with the selected peered border element.

2. The method as defined in claim 1, wherein the communication session includes at least one of voice-over-Internet protocol session and a telephone call.

3. The method as defined in claim 1, wherein the preferred mode of communication indicates an order in which to select the multiple voice over Internet protocol devices.

4. The method as defined in claim 1, wherein the communication session is a first communication session and further including, prior to assigning the first communication session, assigning a second communication session to be handled by a second peered border element of the peered border elements based on a second composite quality-of-service parameter, the assigning of the second peered border element based on relative values of the first composite quality-of-service parameter and the second composite quality-of-service parameter.

5. The method as defined in claim 1, further including creating a subscriber profile based on the grade of service parameter, the first composite quality-of-service parameter being based on the subscriber profile.

6. The method as defined in claim 1, further including partitioning the peered border elements into sets based on the grade of service parameter, the selecting of the peered border elements including selecting the peered border element from one of the sets based on the first composite quality-of-service parameter and the respective statuses of the peered border elements in the sets.

7. The method as defined in claim 1, wherein the status includes real-time network conditions.

8. A communications network device, comprising:

a processor; and

a memory including computer readable instructions which, when executed by the processor, cause the processor to perform operations comprising;

selecting a peered border element to handle a communication session based on a list of peered border elements and a first composite quality-of-service parameter of the communication session, the list of peered border elements being prioritized based on respective statuses of the peered border elements in the list, the first composite quality-of-service parameter being based on weighted quality-of-service parameters of the communication session including a grade of service parameter of the communication session and a preferred mode of communication for a voice over Internet protocol device of a called party in the communication session, the grade of service parameter including an attempted performance range and an expected performance range of the communication session, the grade of service parameter being based on a level of service for the communication session, and the preferred mode of communication indicating one of multiple devices at which the called party prefers to be reached; and

controlling a second server to generate a quality-of-service authorization token to reserve network resources associated with the selected peered border element.

9. The device as defined in claim 8, wherein the communication session includes a voice-over-Internet protocol session.

10. The device as defined in claim 9, wherein the voice-over-Internet protocol session includes a telephone call.

11. The device as defined in claim 8, wherein the communication session is a first communication session and the operations further include, prior to assigning the first communication session, assigning a second communication session to be handled by a second peered border element of the peered border elements based on a second composite quality-of-service parameter, the assigning of the second peered border element based on relative values of the first composite quality-of-service parameter and the second composite quality-of-service parameter.

12. The device as defined in claim 8, wherein the operations further include creating a subscriber profile based on the grade of service parameter, the first composite quality-of-service parameter being based on the subscriber profile.

13. The device as defined in claim 8, wherein the operations further include partitioning the peered border elements into sets based on the grade of service parameter, the selecting of the peered border elements including selecting the peered border element from one of the sets based on the first composite quality-of-service parameter and the respective statuses of the peered border elements in the sets.

14. The device as defined in claim 8, wherein the status includes real-time network conditions.

15. A tangible computer readable storage device comprising computer readable instructions which, when executed by a processor, cause the processor to perform operations comprising:

selecting a peered border element to handle a communication session based on a list of peered border elements and a first composite quality-of-service parameter of the communication session, the list of peered border elements being prioritized based on respective statuses of the peered border elements in the list, the first composite quality-of-service parameter being based on weighted quality-of-service parameters of the communication session including a grade of service parameter of the communication session and a preferred mode of communication for a voice over Internet protocol device of a called party in the communications session, the grade of service parameter including an attempted performance range and an expected performance range of the communication session, the grade of service parameter being based on a level of service for the communication session, and the preferred mode of communication indicating one of multiple devices at which the called party prefers to be reached; and

controlling a second server to generate a quality-of-service authorization token to reserve network resources associated with the selected peered border element.

16. The storage device as defined in claim 15, wherein the first communication session includes a voice-over-Internet protocol session.

17. The storage device as defined in claim 15, wherein the communication session is a first communication session and the operations further include, prior to assigning the first communication session, assigning a second communication session to be handled by a second peered border element of the peered border elements based on a second composite quality-of-service parameter, the assigning of the second peered border element based on relative values of the first composite quality-of-service parameter and the second composite quality-of-service parameter.

18. The storage device as defined in claim 15, wherein the operations further include creating a subscriber profile based on the grade of service parameter, the first composite quality-of-service parameter being based on the subscriber profile.

19. The storage device as defined in claim 15, wherein the operations further include partitioning the peered border elements into sets based on the grade of service parameter, the selecting of the peered border elements including selecting the peered border element from one of the sets based on the first composite quality-of-service parameter and the respective statuses of the peered border elements in the sets.

20. The storage device as defined in claim 15, wherein the status includes real-time network conditions.