Differentiation for bandwidth request contention

• US 7,843,943 B2
• Filed: 03/11/2008
• Issued: 11/30/2010
• Est. Priority Date: 11/21/2007
• Status: Expired due to Fees

• Current Assignee: Nokia Corporation
• Original Assignee: Nokia Corporation
• Inventors: Le, Yan Qun, Wu, Yi, Zhang, Dong Mei
• Primary Examiner(s): Mills; Donald L
• Application Number:
  US12/046,408
• Publication Number:
  US 20090129404A1
• Time in Patent Office: 994 Days
• Field of Search: None
• US Class Current: 370/395.42
• CPC Class Codes: H04L 12/40143 involving priority mechanisms hybrid switching fabrics H04L12/6402; intermediate storage or scheduling H04L49/90; time-division multiplex systems H04J3/00
• CPC Class Codes: H04W 72/569 of the traffic information
• CPC Class Codes: H04W 74/0841 with collision treatment
• CPC Class Codes: H04W 74/0875 with assigned priorities based access

Abstract

The present disclosure relates to a method and an apparatus for bandwidth contention differentiation comprising: determining a service type of a bandwidth request, setting a priority of the bandwidth request based on the determined service type, and providing contention differentiation based on the set priority.

Claims

1. A method comprising:

determining, by a processor, a service type of a bandwidth request,

setting a priority of the bandwidth request to either a high priority or a low priority based on the determined service type, and

providing bandwidth contention differentiation by providing a backoff interval in a lower portion of a contention window if the set priority is high priority and providing the backoff interval in an upper portion of the contention window if the set priority is low priority, based on the set priority.

2. The method according to claim 1, wherein the bandwidth contention differentiation includes varying a parameter in a channel descriptor.

3. The method according to claim 2, wherein the parameter is either a parameter for requesting start of backoff or a parameter for requesting end of backoff.

4. The method according to claim 1, wherein the bandwidth contention differentiation is configured to vary an algorithm for backoff.

5. The method according to claim 1, wherein the bandwidth contention differentiation is configured to vary a timeout parameter according to the set priority.

6. The method according to claim 1, wherein the service type of the bandwidth request is a real-time polling service, an extended real-time polling service or a standalone bandwidth request for a handover signalling.

25. The method according to claim 1, wherein the bandwidth request is an IEEE 802.16 WiMAX bandwidth request.

7. An apparatus comprising:

a processor configured to determine a service type of a bandwidth request

a processor configured to set a priority of the bandwidth request to either a high priority or a low priority based on the determined service type, and

a processor configured to provide bandwidth contention differentiation by providing a backoff interval in a lower portion of a contention window if the set priority is high priority and providing the backoff interval in an upper portion of the contention window if the set priority is low priority, based on the set priority.

8. The apparatus according to claim 7, wherein the processor configured to provide bandwidth contention differentiation is configured to vary a parameter in a channel descriptor.

9. The apparatus according to claim 8 wherein the parameter is either a parameter for requesting start of backoff or a parameter for requesting end of backoff.

10. The apparatus according to claim 7, wherein the processor configured to provide bandwidth contention differentiation is configured to vary an algorithm for backoff.

11. The apparatus according to claim 7, wherein the processor configured to provide bandwidth contention differentiation is configured to vary a timeout parameter according to the set priority.

12. The apparatus according claim 7, wherein the service type of the bandwidth request is a real-time polling service, an extended real-time polling service or a standalone bandwidth request for a handover signalling.

13. An apparatus comprising:

means for determining a service type of a bandwidth request,

means for setting a priority of the bandwidth request to either a high priority or a low priority based on the determined service type, and

means for providing bandwidth contention differentiation by providing a backoff interval in a lower portion of a contention window if the set priority is high priority and providing the backoff interval in an upper portion of the contention window if the set priority is low priority, based on the set priority.

14. The apparatus according to claim 13, wherein the means for providing bandwidth contention differentiation is configured to vary a parameter in a channel descriptor.

15. The apparatus according to claim 13 wherein the parameter is either a parameter for requesting start of backoff or a parameter for requesting end of backoff.

16. The apparatus according to claim 13, wherein the means for providing bandwidth contention differentiation is configured to vary an algorithm for backoff.

17. The apparatus according to claim 13, wherein the means for providing bandwidth contention differentiation is configured to vary a timeout parameter according to the set priority.

18. The apparatus according claim 13, wherein the service type of the bandwidth request is a real-time polling service, an extended real-time polling service or a standalone bandwidth request for a handover signalling.

19. A computer memory comprising a program comprising program code means adapted to, when the program is run on a processor, perform:

determining a service type of a bandwidth request,

setting a priority of the bandwidth request to either a high priority or a low priority based on the determined service type, and

providing bandwidth contention differentiation by providing a backoff interval in a lower portion of a contention window if the set priority is high priority and providing the backoff interval in an upper portion of the contention window if the set priority is low priority, based on the set priority.

20. The computer memory according to claim 19, wherein the bandwidth contention differentiation is configured to vary a parameter in a channel descriptor.

21. The computer memory according to claim 19, wherein the parameter is either a parameter for requesting start of backoff or a parameter for requesting end of backoff.

22. The computer memory according to claim 19, wherein the bandwidth contention differentiation is configured to vary an algorithm for backoff.

23. The computer memory according to claim 19, wherein the bandwidth contention differentiation is configured to vary a timeout parameter according to the set priority.

24. The computer memory according to claim 19, wherein the service type of the bandwidth request is a real-time polling service, an extended real-time polling service or a standalone bandwidth request for a handover signalling.