METHOD AND APPARATUS FOR CARRIER SELECTION IN MULTI-CARRIER COMMUNICATION SYSTEMS

• US 20090257405A1
• Filed: 04/23/2008
• Published: 10/15/2009
• Est. Priority Date: 04/15/2008
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Horn, Gavin Bernard, Gupta, Rajarshi, Stamoulis, Anastasios
• Granted Patent: US 8,750,139 B2
• Time in Patent Office: Days
• US Class Current: 370/332
• CPC Class Codes: H04W 72/541 using the level of interference
• CPC Class Codes: H04W 72/542 using measured or perceived quality

Abstract

Systems and methods are described that facilitate the determination and request of resources a node may wish to reserve. The resources include a plurality of carriers that are shared with other nodes. In an approach, the node determines a condition related to a plurality of resources; identify a desired amount of resources from the plurality of resources based on the condition; and transmit a resource utilization message (RUM) for at least one of the plurality of resources based on the desired amount of resources.

Claims

1. A method of wireless communication comprising:

determining a condition related to a plurality of resources;

identifying a desired amount of resources from the plurality of resources based on the condition; and

transmitting a resource utilization message (RUM) for at least one of the plurality of resources based on the desired amount of resources.

2. The method of claim 1, wherein the condition comprises at least one of a level of interference over thermal noise (IOT), a carrier-to-interference ratio (C/I), and a level of spectral efficiency for the plurality of resources.

3. The method of claim 1, wherein the condition comprises a quality of service (QoS) requirement for the plurality of resources, wherein the QoS requirement comprises at least one of a data rate, an amount of data to transmit, a level of latency, and a traffic class.

4. The method of claim 1, wherein the determination comprises:

receiving a signal, and

deriving the condition from the signal.

5. The method of claim 4, wherein the signal comprises an indication of a preferred amount of the plurality of resources.

6. The method of claim 4, wherein the signal comprises an indication of at least one of a level of interference over thermal noise (IOT), a carrier-to-interference ratio (C/I), a level of spectral efficiency, and at least one received RUM for the plurality of resources determined at an associated node.

7. The method of claim 1, wherein the identification comprises:

determining a weight based on the condition; and

,

selecting the desired amount of resources based on the weight.

8. The method of claim 1, wherein the identification comprises:

determining a number of associated nodes; and

selecting the desired amount of resources based on the number of associated nodes.

9. The method of claim 8, wherein the selection comprises selecting the desired amount of resources in proportion to the number of associated nodes.

10. The method of claim 1, wherein the identification comprises:

determining a priority of an associated node; and

selecting the desired amount of resources based on the priority.

11. An apparatus for wireless data communication comprising:

means for determining a condition related to a plurality of resources;

means for identifying a desired amount of resources from the plurality of resources based on the condition; and

means for transmitting a resource utilization message (RUM) for at least one of the plurality of resources based on the desired amount of resources.

12. The apparatus of claim 11, wherein the condition comprises at least one of a level of interference over thermal noise (IOT), a carrier-to-interference ratio (C/I), and a level of spectral efficiency for the plurality of resources.

13. The apparatus of claim 11, wherein the condition comprises a quality of service (QoS) requirement for the plurality of resources, wherein the QoS requirement comprises at least one of a data rate, an amount of data to transmit, a level of latency, and a traffic class.

14. The apparatus of claim 11, wherein the determination means comprises:

means for receiving a signal, and

means for deriving the condition from the signal.

15. The apparatus of claim 14, wherein the signal comprises an indication of a preferred amount of the plurality of resources.

16. The apparatus of claim 14, wherein the signal comprises an indication of at least one of a level of interference over thermal noise (IOT), a carrier-to-interference ratio (C/I), a level of spectral efficiency, and one or more received RUMs for the plurality of resources determined at an associated node.

17. The apparatus of claim 11, wherein the identification means comprises:

means for determining a weight based on the condition; and

means for selecting the desired amount of resources based on the weight.

18. The apparatus of claim 11, wherein the identification means comprises:

means for determining a number of associated nodes; and

means for selecting the desired amount of resources based on the number of associated nodes.

19. The apparatus of claim 18, wherein the selection means comprises means for selecting the desired amount of resources in proportion to the number of associated nodes.

20. The apparatus of claim 11, wherein the identification means comprises:

means for determining a priority of an associated node; and

means for selecting the desired amount of resources based on the priority.

21. An access point comprising:

an antenna; and

,

a processing system coupled to the antenna and configured to;

determine a condition related to a plurality of resources via the antenna;

identify a desired amount of resources from the plurality of resources based on the condition; and

transmit a resource utilization message (RUM) for at least one of the plurality of resources based on the desired amount of resources.

22. An access terminal comprising:

a transducer; and

,

a processing system coupled to the transducer and configured to;

determine a condition related to a plurality of resources usable to communicate data usable with the transducer;

identify a desired amount of resources from the plurality of resources based on the condition; and

transmit a resource utilization message (RUM) for at least one of the plurality of resources based on the desired amount of resources.

23. A computer program product for wireless data communication comprising:

a computer readable medium comprising codes executable to;

determine a condition related to a plurality of resources;

identify a desired amount of resources from the plurality of resources based on the condition; and

transmit a resource utilization message (RUM) for at least one of the plurality of resources based on the desired amount of resources.

24. An apparatus for wireless data communication comprising:

a processing system configured to;

determine a condition related to a plurality of resources;

identify a desired amount of resources from the plurality of resources based on the condition; and

transmit a resource utilization message (RUM) for at least one of the plurality of resources based on the desired amount of resources

25. The apparatus of claim 24, wherein the condition comprises at least one of a level of interference over thermal noise (IOT), a carrier-to-interference ratio (C/I), and a level of spectral efficiency for the plurality of resources.

26. The apparatus of claim 24, wherein the condition comprises a quality of service (QoS) requirement for the plurality of resources, wherein the QoS requirement comprises at least one of a data rate, an amount of data to transmit, a level of latency, and a traffic class.

27. The apparatus of claim 26, wherein the processing system is further configured to:

receive a signal, and

derive the condition from the signal.

28. The apparatus of claim 27, wherein the signal comprises an indication of a preferred amount of the plurality of resources.

29. The apparatus of claim 27, wherein the signal comprises an indication of at least one of a level of interference over thermal noise (IOT), a carrier-to-interference ratio (C/I), a level of spectral efficiency, and one or more received RUMs for the plurality of resources determined at an associated node.

30. The apparatus of claim 24, wherein the processing system is further configured to:

determine a weight based on the condition; and

,

select the desired amount of resources based on the weight.

31. The apparatus of claim 24, wherein the processing system is further configured to:

determine a number of associated nodes; and

,

select the desired amount of resources based on the number of associated nodes.

32. The apparatus of claim 31, wherein the processing system is further configured to select the desired amount of resources in proportion to the number of associated nodes

33. The apparatus of claim 24, wherein the processing system is further configured to:

determine a priority of an associated node; and

,

select the desired amount of resources based on the priority.