AIR LINK BANDWIDTH ALLOCATION FOR VOICE OVER IP COMMUNICATIONS

• US 20080253321A1
• Filed: 12/27/2007
• Published: 10/16/2008
• Est. Priority Date: 12/27/2006
• Status: Abandoned Application

• Current Assignee: SR Telecom & Co., S.E.C. (Bonterra Energy Corp.)
• Original Assignee: SR Telecom Inc. (Bonterra Energy Corp.)
• Inventors: Gormley, Eamonn F., Thirunavukkarasu, Salai Sivakkani
• Application Number:
  US11/965,417
• Publication Number:
  US 20080253321A1
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/752 adapting media to network capabilities
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04W 28/20 Negotiating bandwidth
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 80/10 adapted for application session management, e.g. SIP [Session Initiation Protocol] connection management H04W76/00; arrangements for session management H04L67/14

Abstract

A system, method, and computer program product for receiving a Session Initiation Protocol (“SIP”) packet and analyzing at least a portion of the SIP packet to determine if the at least a portion of the SIP packet includes a request related to a bandwidth requirement. If the at least a portion of the SIP packet includes a request related to a bandwidth requirement, bandwidth of an air link for voice over IP (“VoIP”) communications over the air link is allocated based upon, at least in part, request related to a bandwidth requirement.

Claims

1. A method comprising:

receiving a Session Initiation Protocol (“

SIP”

) packet;

analyzing at least a portion of the SIP packet;

determining if the at least a portion of the SIP packet includes a request related to a bandwidth requirement; and

if the at least a portion of the SIP packet includes a request related to a bandwidth requirement, allocating bandwidth of an air link for voice over IP (“

VoIP”

) communications over the air link based upon, at least in part, the request related to a bandwidth requirement.

2. The method of claim 1, wherein the SIP packet includes a request to set-up a new VoIP communication, and if the bandwidth of the air link for VoIP communications is not fully utilized, allocating bandwidth includes allocating additional bandwidth of the air link for the new VoIP communication.

3. The method of claim 1, wherein the SIP packet includes a request to set-up a new VoIP communication, and if the bandwidth of the air link for VoIP communications is fully utilized, denying the request to set-up the new VoIP communication.

4. The method of claim 1, wherein the SIP packet includes a request to terminate an existing VoIP communication, and allocating bandwidth includes decreasing allocated bandwidth of the air link for VoIP communications.

5. The method of claim 1, wherein the SIP packet includes a request for a new VoIP communication including an emergency call, and if the bandwidth of the air link for VoIP communications is fully utilized, allocating bandwidth includes terminating one or more active VoIP communications to provide available bandwidth and allocating the available bandwidth for the new VoIP communication including the emergency call.

6. The method of claim 1, wherein the SIP packet includes a request for a change in bandwidth requirements of an active VoIP communication, and allocating bandwidth includes allocating bandwidth of the air link based upon, at least in part, the request for the change in bandwidth requirements.

7. The method of claim 1, wherein the allocated bandwidth of the air link for VoIP communications includes bandwidth allocated for the content of the VoIP communications.

8. The method of claim 7, wherein control data for the VoIP communications is carried on a separate channel of the air link from the content of the VoIP communications

9. A computer program product residing on a computer readable medium having a plurality of instructions stored thereon, which, when executed by a processor cause the processor to perform operations comprising:

receiving a Session Initiation Protocol (“

SIP”

) packet;

analyzing at least a portion of the SIP packet;

determining if the at least a portion of the SIP packet includes a request related to a bandwidth requirement; and

if the at least a portion of the SIP packet includes a request related to a bandwidth requirement, allocating bandwidth of an air link for voice over IP (“

VoIP”

) communications over the air link based upon, at least in part, the request related to a bandwidth requirement.

10. The computer program product of claim 9, wherein the SIP packet includes a request to set-up a new VoIP communication, and if the bandwidth of the air link for VoIP communications is not fully utilized, the instructions for allocating bandwidth include instructions for allocating additional bandwidth of the air link for the new VoIP communication.

11. The computer program product of claim 9, wherein the SIP packet includes a request to set-up a new VoIP communication, and if the bandwidth of the air link for VoIP communications is fully utilized, further including instructions for denying the request to set-up the new VoIP communication.

12. The computer program product of claim 9, wherein the SIP packet includes a request to terminate an existing VoIP communication, and the instructions for allocating bandwidth include instructions for decreasing allocated bandwidth of the air link for VoIP communications.

13. The computer program product of claim 9, wherein the SIP packet includes a request for a new VoIP communication including an emergency call, and if the bandwidth of the air link for VoIP communications is fully utilized, the instructions for allocating bandwidth include instructions for terminating one or more active VoIP communications to provide available bandwidth and allocating the available bandwidth for the new VoIP communication including the emergency call.

14. The computer program product of claim 9, wherein the SIP packet includes a request for a change in bandwidth requirements of an active VoIP communication, and the instructions for allocating bandwidth include instructions for allocating bandwidth of the air link based upon, at least in part, the request for the change in bandwidth requirements.

15. The computer program product of claim 9, wherein the allocated bandwidth of the air link for VoIP communications includes bandwidth allocated for the content of the VoIP communications.

16. The computer program product of claim 15, wherein control data for the VoIP communications is carried on a separate channel of the air link from the content of the VoIP communications

17. A system comprising:

a base station capable of establishing an air link with one or more subscriber stations, the air link capable of supporting voice over IP (“

VoIP) communications; and

a Session Initiation Protocol (“

SIP”

) packet parser configured to;

receive a SIP packet;

analyze at least a portion of the SIP packet;

determine if the at least a portion of the SIP packet includes a request related to a bandwidth requirement; and

if the at least a portion of the SIP packet includes a request related to a bandwidth requirement, allocate bandwidth of an air link for VoIP communications over the air link based upon, at least in part, the request related to a bandwidth requirement.

18. The system of claim 17, wherein the SIP packet includes a request to set-up a new VoIP communication, and if the bandwidth of the air link for VoIP communications is not fully utilized, the SIP packet parser is configured to allocate additional bandwidth of the air link for the new VoIP communication.

19. The system of claim 17, wherein the SIP packet includes a request to set-up a new VoIP communication, and if the bandwidth of the air link for VoIP communications is fully utilized, the SIP packet parser is configured to deny the request to set-up the new VoIP communication.

20. The system of claim 17, wherein the SIP packet includes a request to terminate an existing VoIP communication, and the SIP packet parser is configured decrease allocated bandwidth of the air link for VoIP communications.

21. The system of claim 17, wherein the SIP packet includes a request for a new VoIP communication including an emergency call, and if the bandwidth of the air link for VoIP communications is fully utilized, the SIP packet parser is configured to terminate one or more active VoIP communications to provide available bandwidth and allocate the available bandwidth for the new VoIP communication including the emergency call.

22. The system of claim 17, wherein the SIP packet includes a request for a change in bandwidth requirements of an active VoIP communication, and the SIP packet parser is configured to allocate bandwidth of the air link based upon, at least in part, the request for the change in bandwidth requirements.

23. The system of claim 17, wherein the allocated bandwidth of the air link for VoIP communications includes bandwidth allocated for the content of the VoIP communications.

24. The system of claim 23, wherein control data for the VoIP communications is carried on a separate channel of the air link from the content of the VoIP communications