METHOD AND APPARATUS FOR FREQUENCY REUSE IN A MULTI-CARRIER COMMUNICATIONS SYSTEM

• US 20090228598A1
• Filed: 04/28/2008
• Published: 09/10/2009
• Est. Priority Date: 03/07/2008
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Gupta, Rajarshi, Stamoulis, Anastasios
• Granted Patent: US 8,458,345 B2
• Time in Patent Office: Days
• US Class Current: 709/230
• CPC Class Codes: H04L 1/0018 based on latency requirement
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04W 52/367 Power values between minimum and maximum limits, e.g. dynamic range
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/54 based on quality criteria

Abstract

Systems and methods are described that facilitate evaluating conditions of nodes (e.g., access points, 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. This would allow frequency reuse if nodes vary the power of transmission for particular carriers, in conjunction with neighboring nodes.

Claims

1. A method for communicating data comprising:

receiving at least one resource utilization message (RUM) related to a plurality of resources;

determining a transmission profile for at least one resource of the plurality of resources based on the at least one RUM; and

scheduling a transmission on the at least one resource based on the transmission profile.

2. The method of claim 1, wherein the transmission profile is determined based on 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 RUM comprises a quality of service (QoS) requirement for the plurality of resources, wherein the QoS requirement comprising 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 RUM comprises a measure 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 a received RUM for the plurality of resources at an associated node.

5. The method of claim 1, wherein the transmission profile comprises a determined transmission power range for the at least one of the plurality of resources.

6. The method of claim 5, wherein the scheduling comprises transmitting on the at least one resource, wherein the transmission comprises transmitting at a transmission power constrained by the determined transmission power range.

7. The method of claim 1, wherein the scheduling comprises requesting to transmit on the at least one resource to an associated node.

8. The method of claim 1, wherein the scheduling comprises communicating the transmission profile on the at least one resource to an associated node.

9. The method of claim 1, wherein the ordering is based on a result of previous RUMs transmitted for the plurality of resources.

10. The method of claim 9, wherein the result of previous RUMs transmitted comprises at least one of a number of successful transmissions, a number of unsuccessful transmissions, a number of previously transmitted RUMs, and a number of RUMs previously transmitted for the plurality of resources by other nodes.

11. An apparatus for communicating data comprising:

means for receiving at least one resource utilization message (RUM) related to a plurality of resources;

means for determining a transmission profile for at least one resource of the plurality of resources based on the at least one RUM; and

means for scheduling a transmission on the at least one resource based on the transmission profile.

12. The apparatus of claim 11, wherein the transmission profile is determined based on 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 RUM comprises a quality of service (QoS) requirement for the plurality of resources, wherein the QoS requirement comprising 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 RUM comprises a measure 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 a received RUM for the plurality of resources at an associated node.

15. The apparatus of claim 11, wherein the transmission profile comprises a determined transmission power range for the at least one of the plurality of resources.

16. The apparatus of claim 15, wherein the scheduling means comprises means for transmitting on the at least one resource, wherein the transmission comprises transmitting at a transmission power constrained by the determined transmission power range.

17. The apparatus of claim 11, wherein the scheduling means comprises means for requesting to transmit on the at least one resource to an associated node.

18. The apparatus of claim 11, wherein the scheduling means comprises means for communicating the transmission profile on the at least one resource to an associated node.

19. The apparatus of claim 11, wherein the ordering is based on a result of previous RUMs transmitted for the plurality of resources.

20. The apparatus of claim 19, wherein the result of previous RUMs transmitted comprises at least one of a number of successful transmissions, a number of unsuccessful transmissions, a number of previously transmitted RUMs, and a number of RUMs previously transmitted for the plurality of resources by other nodes.

21. An access point comprising:

an antenna; and

,

a processing system coupled to the antenna and configured to;

receive at least one resource utilization message (RUM) related to a plurality of resources via the antenna;

determine a transmission profile for at least one resource of the plurality of resources based on the at least one RUM; and

schedule a transmission on the at least one resource based on the transmission profile.

22. An access terminal comprising:

a transducer; and

,

a processing system coupled to the transducer and configured to;

receive at least one resource utilization message (RUM) related to a plurality of resources used to communicate data that may be reproduced with the transducer;

determine a transmission profile for at least one resource of the plurality of resources based on the at least one RUM; and

schedule a transmission on the at least one resource based on the transmission profile.

23. A computer program product for communicating data comprising:

a computer readable medium comprising codes executable to;

receive at least one resource utilization message (RUM) related to a plurality of resources;

determine a transmission profile for at least one resource of the plurality of resources based on the at least one RUM; and

schedule a transmission on the at least one resource based on the transmission profile.

24. An apparatus for communicating data comprising:

a processing system configured to;

receive at least one resource utilization message (RUM) related to a plurality of resources;

determine a transmission profile for at least one resource of the plurality of resources based on the at least one RUM; and

schedule a transmission on the at least one resource based on the transmission profile.

25. The apparatus of claim 24, wherein the transmission profile is determined based on 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 RUM comprises a quality of service (QoS) requirement for the plurality of resources, wherein the QoS requirement comprising 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 24, wherein the RUM comprises a measure 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 a received RUM for the plurality of resources at an associated node.

28. The apparatus of claim 24, wherein the transmission profile comprises a determined transmission power range for the at least one of the plurality of resources.

29. The apparatus of claim 28, wherein the processing system is further configured to transmit on the at least one resource, wherein the transmission comprises transmitting at a transmission power constrained by the determined transmission power range.

30. The apparatus of claim 24, wherein the processing system is further configured to request to transmit on the at least one resource to an associated node.

31. The apparatus of claim 24, wherein the processing system is further configured to communicate the transmission profile on the at least one resource to an associated node.

32. The apparatus of claim 24, wherein the ordering is based on a result of previous RUMs transmitted for the plurality of resources.

33. The apparatus of claim 32, wherein the result of previous RUMs transmitted comprises at least one of a number of successful transmissions, a number of unsuccessful transmissions, a number of previously transmitted RUMs, and a number of RUMs previously transmitted for the plurality of resources by other nodes.