Method and system for managing wireless bandwidth resources

• US 6,957,071 B1
• Filed: 07/18/2001
• Issued: 10/18/2005
• Est. Priority Date: 07/18/2001
• Status: Expired due to Fees

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Holur, Balaji S., Dantu, Ramanamurthy, Derrick, Charles J.
• Primary Examiner(s): Trinh, Sonny
• Assistant Examiner(s): Phan, Huy
• Application Number:
  US09/908,348
• Time in Patent Office: 1,553 Days
• Field of Search: 455/452.2, 455/450, 455/453, 455/13.4, 455/452.1, 455/451, 455/509
• US Class Current: 455/452.2
• CPC Class Codes: H04L 67/04 specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• CPC Class Codes: H04L 67/60 Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources admission control or resource allocation H04L47/70
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04W 28/20 Negotiating bandwidth
• CPC Class Codes: H04W 28/26 Resource reservation

Abstract

A method and system for managing wireless bandwidth resources include the capability to receive at a serving node a service request for a mobile unit and to communicate with a wireless network node to determine whether sufficient wireless bandwidth is available for the requested service. The method and system also include the capability to process the service request based on the availability of wireless bandwidth.

Claims

1. A method for managing wireless bandwidth resources, comprising:

receiving at a serving node a service request for a mobile unit;

communicating with a wireless network node to determine whether sufficient wireless bandwidth is available for the requested service; and

processing the service request based on the availability of wireless bandwidth and on current wireless bandwidth used by the mobile unit, wherein the service request is received out-of-band, and wherein the service request is part of a vendor-specific extension of an agent solicitation message.

2. The method of claim 1, wherein the service request includes the requested bandwidth for the service.

3. The method of claim 1, further comprising:

determining if the requested bandwidth is available; and

generating a message denying the service request if the requested bandwidth is not available.

4. The method of claim 1, wherein the service request is for service in a cell and determining whether sufficient wireless bandwidth is available includes using forward power estimation to determine bandwidth availability for the cell.

5. The method of claim 1, further comprising determining whether the requested service is allowed based on a service level agreement for the mobile unit.

6. The method of claim 1, further comprising generating a message requesting the mobile unit to degrade the requested service if sufficient bandwidth is not available.

7. The method of claim 1, further comprising determining whether degradation of another service is allowed if there is not sufficient bandwidth for the requested service.

8. The method of claim 1, further comprising generating a message indicating that degradation is available if degradation is allowed.

9. A system for managing wireless bandwidth resources, comprising:

a computer-processable medium; and

logic stored on the computer-processable medium, the logic operable to;

receive at a serving node a service request for a mobile unit;

communicate with a wireless network node to determine whether sufficient wireless bandwidth is available for the requested service; and

process the service request based on the availability of wireless bandwidth and on current wireless bandwidth used by the mobile unit, wherein the service request is received out-of-band, and wherein the service request is part of a vendor-specific extension of an agent solicitation message.

10. The system of claim 9, wherein the service request includes the requested bandwidth for the service.

11. The system of claim 9, wherein the logic is further operable to:

determine if the requested bandwidth is available; and

generate a message denying the service request if the requested bandwidth is not available.

12. The system of claim 9, wherein the service request is for service in a cell and the logic is operable to determine whether sufficient wireless bandwidth is available by using forward power estimation to determine bandwidth availability for the cell.

13. The system of claim 9, wherein the logic is further operable to determine whether the requested service is allowed based on a service level agreement for the mobile unit.

14. The system of claim 9, wherein the logic is further operable to generate a message requesting the mobile unit to degrade the requested service if sufficient bandwidth is not available.

15. The system of claim 9, wherein the logic is further operable to determine whether degradation of another service is allowed if there is not sufficient bandwidth for the requested service.

16. The system of claim 9, wherein the logic is further operable to generate a message indicating that degradation is available if degradation is allowed.

17. A system for managing wireless bandwidth resources, comprising:

means for receiving at a serving node a service request for a mobile unit;

means for communicating with a wireless network node to determine whether sufficient wireless bandwidth is available for the requested service; and

means for processing the service request based on availability of wireless bandwidth and on current wireless bandwidth used by the mobile unit, wherein the service request is received out-of-band, and wherein the service request is part of a vendor-specific extension of an agent solicitation message.

18. The system of claim 17, wherein the service request includes the requested bandwidth for the service.

19. The system of claim 17, further comprising:

means for determining if the requested bandwidth is available; and

means for generating a message denying the service request if the requested bandwidth is not available.

20. The system of claim 17, wherein the service request is for service in a cell and determining whether sufficient wireless bandwidth is available includes using forward power estimation to determine bandwidth availability for the cell.

21. The system of claim 17, further comprising means for determining whether the requested service is allowed based on a service level agreement for the mobile unit.

22. The system of claim 17, further comprising means for generating a message requesting the mobile unit to degrade the requested service if sufficient bandwidth is not available.

23. The system of claim 17, further comprising means for determining whether degradation of another service is allowed if there is not sufficient bandwidth for the requested service.

24. The system of claim 17, further comprising means for generating a message indicating that degradation is available if degradation is allowed.

25. A method for managing wireless bandwidth resources, comprising:

determining at a mobile unit that an associated application desires a service;

generating a message requesting approval for the service, the message containing traffic characteristics for the service;

receiving a message regarding approval;

determining whether the service is approved, wherein the approval is based on the availability of wireless bandwidth and on current wireless bandwidth used by the mobile unit; and

updating traffic information for a wireless link if the service is approved, wherein generating a message requesting approval for the service includes sending the message out-of-band, and wherein the message is sent out-of-band by inserting the message into the vendor-specific extension of an agent solicitation message.

26. The method of claim 25, further comprising:

determining whether sufficient bandwidth is available for the service; and

generating a rejection message if sufficient bandwidth is not available.

27. The method of claim 25, further comprising:

determining whether degradation is allowed if the service is not approved; and

generating a message requesting approval for the service if degradation is allowed.

28. The method of claim 25, wherein the message requesting approval for the service further includes traffic characteristics for other services.

29. A system for managing wireless bandwidth resources, comprising:

a computer-processable medium; and

logic stored on the computer-processable medium, the logic operable to;

determine at a mobile unit that an associated application desires a service;

generate a message requesting approval for the service, the message containing traffic characteristics for the service;

receive a message regarding approval;

determine whether the service is approved, wherein the approval is based on the availability of wireless bandwidth and on current wireless bandwidth used by the mobile unit; and

update traffic information for a wireless link if the service is approved, wherein generating a message requesting approval for the service includes sending the message out-of-band, and wherein the message is sent out-of-band by inserting the message into the vendor-specific extension of an agent solicitation message.

30. The system of claim 29, wherein the logic is further operable to:

determine whether sufficient bandwidth is available for the service; and

generate a rejection message if sufficient bandwidth is not available.

31. The system of claim 29, wherein the logic is further operable to:

determine whether degradation is allowed if the service is not approved; and

generate a message requesting approval for the service if degradation is allowed.

32. The system of claim 29, wherein the message requesting approval for the service further includes traffic characteristics for other services.

33. A system for managing wireless bandwidth resources, comprising:

means for determining at a mobile unit that an associated application desires a service;

means for generating a message requesting approval for the service, the message containing traffic characteristics for the service;

means for receiving a message regarding approval;

means for determining whether the service is approved, wherein the approval is based on the availability of wireless bandwidth and on current wireless bandwidth used by the mobile unit; and

means for updating traffic information for a wireless link if the service is approved, wherein generating a message requesting approval for the service includes sending the message out-of-band, and wherein the message is sent out-of-band by inserting the message into the vendor-specific extension of an agent solicitation message.

34. The system of claim 33, further comprising:

means for determining whether sufficient bandwidth is available for the service; and

means for generating a rejection message if sufficient bandwidth is not available.

35. The system of claim 33, further comprising:

means for determining whether degradation is allowed if the service is not approved; and

means for generating a message requesting approval for the service if degradation is allowed.

36. The system of claim 33, wherein the message requesting approval for the service further includes traffic characteristics for other services.

37. The system of claim 33, wherein generating a message requesting approval for the service includes sending the message out-of-band.

38. The system of claim 37, wherein the message is sent out-of-band by inserting the message into the vendor-specific extension of an agent solicitation message.

39. A mobile unit for managing wireless bandwidth resources, comprising:

a service application manager operable to determine that an associated application desires a service, generate a message requesting approval for the service, the message containing traffic characteristics for the service, receive a message regarding approval, and determine whether the service is approved, wherein the approval is based on the availability of wireless bandwidth and on current wireless bandwidth used by the mobile unit; and

a traffic manager operable to update traffic information for a wireless link if the service is approved, wherein generating a message requesting approval for the service includes sending the message out-of-band, and wherein the message is sent out-of-band by inserting the message into the vendor-specific extension of an agent solicitation message.

40. The mobile unit of claim 39, wherein the service application manager is further operable to:

determining whether sufficient bandwidth is available for the service; and

generating a rejection message if sufficient bandwidth is not available.

41. The mobile unit of claim 39, wherein the service application manager is further operable to:

determine whether degradation is allowed if the service is not approved; and

generate a message requesting approval for the service if degradation is allowed.

42. The mobile unit of claim 39, wherein the message requesting approval for the service further includes traffic characteristics for other services.