Method and apparatus for resource utilization management in a multi-carrier communications system

• US 9,014,015 B2
• Filed: 04/23/2008
• Issued: 04/21/2015
• Est. Priority Date: 04/15/2008
• Status: Expired due to Fees

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Stamoulis, Anastasios, Gupta, Rajarshi, Horn, Gavin Bernard, Sampath, Ashwqin
• Primary Examiner(s): MURPHY, RHONDA L
• Application Number:
  US12/108,345
• Publication Number:
  US 20090323598A1
• Time in Patent Office: 2,554 Days
• Field of Search: None
• US Class Current: 370/252
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 72/54 based on quality criteria
• CPC Class Codes: H04W 8/24 Transfer of terminal data

Abstract

Systems and methods are described that facilitate evaluating conditions of nodes (e.g., access points, access terminals, etc.) in a wireless communication environment having a plurality of carriers to determine a level of disadvantage for a given node relative to other nodes. The node may transmit a resource utilization message (RUM) that represents the level of disadvantage for the node and request other interference nodes to back off on one or more carriers.

Claims

1. A method of wireless communication comprising:

determining, at a first device, a condition related to a plurality of resources;

determining a weight of the first device based on the condition, wherein the weight indicates a degree to which the first device is disadvantaged;

selecting a desired set of resources from the plurality of resources based on the condition; and

transmitting, by the first device, a resource utilization message (RUM) comprising the weight and an indication of the desired set of resources, wherein the RUM requests one or more apparatuses receiving the RUM to refrain from using the desired set 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 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 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 at an associated node.

6. The method of claim 1, wherein the selection comprises:

selecting a desired set of the plurality of resources based on the weight.

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

determining a number of resources based on the condition; and

selecting a subset of the plurality of resources based on the number.

8. The method of claim 1, wherein the selection comprises ordering the plurality of resources according to the condition.

9. The method of claim 1, wherein the RUM comprises an element list comprising a plurality of elements, each of the elements being associated with the condition.

10. The method of claim 1, wherein the RUM comprises at least one element list, wherein each element list comprises at least one resource associated with a quality of service requirement.

11. The method of claim 1, wherein the plurality of resources comprises at least one resource from a group consisting of a plurality of interlaces, a plurality of time slots, and a plurality of frequencies.

12. The method of claim 1, wherein the weight indicates a level of performance achieved at the first device relative to a target level of performance.

13. The method of claim 12, wherein the weight comprises a ratio of the level of performance achieved at the first device and the target level of performance.

14. The method of claim 12, wherein the level of performance achieved at the first device comprises an average level of performance achieved at the first device.

15. The method of claim 12, wherein the weight indicates a throughput achieved at the first device relative to a target throughput.

16. The method of claim 15, wherein the weight comprises a ratio of the throughput achieved at the first device and the target throughput.

17. The method of claim 15, wherein the throughput achieved at the device comprises an average throughput achieved at the first device.

18. The method of claim 1, wherein the condition comprises interference caused by the one or more apparatuses receiving the RUM.

19. An apparatus comprising:

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

means for determining a weight of the apparatus based on the condition, wherein the weight indicates a degree to which the apparatus is disadvantaged;

means for selecting a desired set of resources from the plurality of resources based on the condition; and

means for transmitting a resource utilization message (RUM) comprising the weight and an indication of the desired set of resources, wherein the RUM requests one or more apparatuses receiving the RUM to refrain from using the desired set of resources.

20. The apparatus of claim 19, 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.

21. The apparatus of claim 19, 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.

22. The apparatus of claim 19, wherein the determination means comprises:

means for receiving a signal; and

means for deriving the condition from the signal.

23. The apparatus of claim 22, 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 at an associated node.

24. The apparatus of claim 19, wherein the selection means comprises:

means for selecting a desired set of the plurality of resources based on the weight.

25. The apparatus of claim 19, wherein the selection means comprises:

means for determining a number of resources based on the condition; and

means for selecting a subset of the plurality of resources based on the number.

26. The apparatus of claim 19, wherein the selection means comprises means for ordering the plurality of resources according to the condition.

27. The apparatus of claim 19, wherein the RUM comprises an element list comprising a plurality of elements, each of the elements being associated with the condition.

28. The apparatus of claim 19, wherein the RUM comprises at least one element list, wherein each element list comprises at least one resource associated with a quality of service requirement.

29. The apparatus of claim 19, wherein the plurality of resources comprises at least one resource from a group consisting of a plurality of interlaces, a plurality of time slots, and a plurality of frequencies.

30. 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 detected via the antenna;

determine a weight of the access point based on the condition, wherein the weight indicates a degree to which the access point is disadvantaged;

select a desired set of resources from the plurality of resources based on the condition; and

,

transmit a resource utilization message (RUM) comprising the weight and an indication of the desired set of resources, wherein the RUM requests one or more apparatuses receiving the RUM to refrain from using the desired set of resources.

31. 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;

determine a weight of the access terminal based on the condition, wherein the weight indicates a degree to which the access terminal is disadvantaged;

select a desired set of resources from the plurality of resources based on the condition; and

,

transmit a resource utilization message (RUM) comprising the weight and an indication of the desired set of resources, wherein the RUM requests one or more apparatuses receiving the RUM to refrain from using the desired set of resources.

32. A computer program product for wireless communication comprising:

a non-transitory computer readable storage medium comprising codes executable to;

determine, at a first device, a condition related to a plurality of resources;

determine a weight of the first device based on the condition, wherein the weight indicates a degree to which the first device is disadvantaged;

select a desired set of resources from the plurality of resources based on the condition; and

,

transmit, by the first device, a resource utilization message (RUM) comprising the weight and an indication of the desired set of resources, wherein the RUM requests one or more apparatuses receiving the RUM to refrain from using the desired set of resources.

33. An apparatus for wireless communication comprising:

a processing system configured to;

determine a condition related to a plurality of resources receivable;

determine a weight of the apparatus based on the condition, wherein the weight indicates a degree to which the apparatus is disadvantaged;

select a desired set of resources from the plurality of resources based on the condition; and

transmit a resource utilization message (RUM) comprising the weight and an indication of the desired set of resources, wherein the RUM requests one or more apparatuses receiving the RUM to refrain from using the desired set of resources.

34. The apparatus of claim 33, 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.

35. The apparatus of claim 33, 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.

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

receive a signal; and

derive the condition from the signal.

37. The apparatus of claim 36, 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 at an associated node.

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

select a desired set of the plurality of resources based on the weight.

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

determine a number of resources based on the condition; and

select a subset of the plurality of resources based on the number.

40. The apparatus of claim 33, wherein the processing system is further configured to order the plurality of resources according to the condition.

41. The apparatus of claim 33, wherein the RUM comprises an element list comprising a plurality of elements, each of the elements being associated with the condition.

42. The apparatus of claim 33, wherein the RUM comprises at least one element list, wherein each element list comprises at least one resource associated with a quality of service requirement.

43. The apparatus of claim 33, wherein the plurality of resources comprises at least one resource from a group consisting of a plurality of interlaces, a plurality of time slots, and a plurality of frequencies.