System and Method for Resource Management in Multiple Communications Point Operation

• US 20130166644A1
• Filed: 12/23/2011
• Published: 06/27/2013
• Est. Priority Date: 12/23/2011
• Status: Abandoned Application

• Current Assignee: Futurewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Futurewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
• Inventors: Sun, Yishen, Bi, Hao
• Application Number:
  US13/336,794
• Publication Number:
  US 20130166644A1
• Time in Patent Office: Days
• US Class Current: 709/204
• CPC Class Codes: H04B 7/024 Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
• CPC Class Codes: H04L 5/0035 Resource allocation in a cooperative multipoint environment
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated

Abstract

A method for operating a communications point includes receiving a first message from a candidate communications point in a communications points set associated with a user equipment (UE), where the first message includes a resource report advising of an available portion of an upper layer communications resource that can be committed by the candidate communications point in a collaboration with a first communications point to communicate with the UE. The method also includes sending a second message to the candidate communications point, the second message including a resource reservation request to reserve a subset of the available portion of the upper layer communications resource. The method further includes receiving a third message from the candidate communications point, the third message including a resource reservation response indicating whether the subset of the available portion of the upper layer communications resource has been reserved as requested.

Claims

1. A method for operating a network entity, the method comprising:

receiving a first message from a candidate communications point in a communications points set associated with a user equipment (UE), wherein the first message includes a resource report advising of an available portion of an upper layer communications resource that can be committed by the candidate communications point in a collaboration with a first communications point to communicate with the UE;

sending a second message to the candidate communications point, the second message including a resource reservation request to reserve a subset of the available portion of the upper layer communications resource; and

receiving a third message from the candidate communications point, the third message including a resource reservation response indicating whether the subset of the available portion of the upper layer communications resource has been reserved as requested.

2. The method of claim 1, further comprising confirming a commitment of the subset of the available portion of the upper layer communications resource by the candidate communications point in response to determining that the resource reservation response indicates that the subset of the available portion of the upper layer communications resource has been reserved.

3. The method of claim 1, further comprising setting the candidate communications point to be a second communications point in a second communications points set associated with the UE in response to determining that the resource reservation response indicates that the subset of the available portion of the upper layer communications resource has been reserved.

4. The method of claim 3, wherein the communications points set is a multiple point cooperating set or a multiple point measurement set, and wherein the second communications points set is a multiple point communications point set.

5. The method of claim 3, wherein the communications points set is a multiple point measurement set and the second communications points set is a multiple point cooperating set.

6. The method of claim 1, wherein receiving the first message comprises receiving a plurality of first messages from a plurality of candidate communications points of the communications points set, and wherein sending the second message comprises sending a respective second message to each candidate communications point in a subset of the plurality of candidate communications points.

7. The method of claim 1, further comprising:

sending a fourth message to the candidate communications point, the fourth message including a second resource reservation request to reserve a second subset of the available portion of the upper layer communications resource in response to determining that the resource reservation response indicates that the subset of the available portion of the upper layer communications resource has not been reserved; and

receiving a fifth message from the candidate communications point, the fifth message including a second resource reservation response indicating whether the second subset of the available portion of the upper layer communications resource has been reserved as requested by the second resource reservation request.

8. The method of claim 7, further comprising modifying the resource reservation request to produce the second resource reservation request.

9. The method of claim 7, further comprising:

sending a sixth message to the candidate communications point, the sixth message including a first resource report inquiry to request an updated resource report about a second available portion of the upper layer communications resource that can be committed by the candidate communications point in the collaboration with the first communications point to communicate with the UE; and

receiving a seventh message from the candidate communications point, the seventh message including the updated resource report.

10. The method of claim 7, wherein the third message includes an updated resource report about a third available portion of the upper layer communications resource that can be committed by the candidate communications point in the collaboration with the first communications point to communicate with the UE.

11. The method of claim 1, further comprising sending an eighth message to the candidate communications point, the eighth message including a second resource report inquiry to request the resource report about the available portion of the upper layer communications resource that can be committed by the candidate communications point in the collaboration with the first communications point to communicate with the UE.

12. The method of claim 1, wherein the resource report and the resource reservation request comprises information about the upper layer communications resource.

13. The method of claim 12, wherein the information about the upper layer communications resource includes information about a first basic communications resource element that is an indicator of availability of a set of subframes for communications with the UE.

14. The method of claim 12, wherein the information about the upper layer communications resource includes information about a second basic communications resource element that is an indicator of a multiple point communications scheme category.

15. The method of claim 14, wherein the multiple point communications scheme category includes Joint Processing, Dynamic Point Selection, Joint Transmission, Coordinated Scheduling, Coordinated Beamforming, or a combination thereof.

16. The method of claim 12, wherein the information about the upper layer communications resource includes information about a third basic communications resource element that is an indicator of a multiple point communications data splitting level option.

17. The method of claim 16, wherein the multiple point communications data splitting level option includes Medium Access Control layer, Packet Data Convergence Protocol layer, Radio Link Control layer, or a combination thereof.

18. The method of claim 12, wherein the information about the upper layer communications resource includes information about a fourth basic communications resource element that is an indicator a blend of two or more of the following:

subframe availability information, multiple point communications scheme category, multiple point communications data splitting level option, available bandwidth, and committable quality of service level.

19. A method for operating a network entity, the method comprising:

receiving a first message from a first communications point, the first message including a resource reconfiguration request indicating a change in a portion of an upper layer communications resource committed by the first communications point;

determining if a second communications point accepts a commitment of a second portion of the upper layer communications resource, the second portion of the upper layer communications resource corresponding to the change in the portion of the upper layer communications resource; and

sending a second message to the first communications point, the second message including a resource reconfiguration response indicating whether the second communications point accepted the commitment of the second portion of the upper layer resource.

20. The method of claim 19, wherein determining if the second communications point accepts the commitment of the second portion of the upper layer communications resource comprises:

sending a third message to the second communications point, the third message including a resource reservation request to reserve the second portion of the upper layer communications resource; and

receiving a fourth message from the second communications point, the fourth including a resource reservation response indicating whether the second portion of the upper layer communications resource has been reserved as requested.

21. The method of claim 19, wherein determining if the second communications point accepts the commitment of the second portion of the upper layer communications resource comprises processing upper layer communications resource information.

22. The method of claim 19, further comprising determining if a third communications point accepts a commitment of a third portion of the upper layer communications resource, the third portion of the upper layer communications resource according to the change in the portion of the upper layer communications resource, in response to determining that the second communications point did not accept the commitment of the second portion of the upper layer communications resource or did not accept the commitment of the second portion of the upper layer communications resource in its entirety.

23. The method of claim 19, further comprising negotiating with the first communications point to modify the change in the portion of the upper layer communications resource in response to determining that the second communications point did not accept the commitment of the second portion of the upper layer communications resource or did not accept the commitment of the second portion of the upper layer communications resource in its entirety.

24. The method of claim 23, wherein negotiating with the first communications point comprises:

sending a fifth message to the first communications point, the fifth message including a second resource reservation request comprising the modified change in the portion of the upper layer communications resource; and

receiving a sixth message from the first communications point, the sixth message including a second resource reservation response indicating whether the first communications point accepted the modified change in the portion of the upper layer communications resource.

25. The method of claim 24, wherein the fifth message is a rejection of the resource reconfiguration request.

26. The method of claim 19, wherein the resource reconfiguration request includes information about an upper layer communications resource.

27. A communications point comprising:

a receiver configured to receive a first message from a candidate communications point in a communications points set associated with a user equipment (UE), wherein the first message includes a resource report that advises of an available portion of an upper layer communications resource that can be committed by the candidate communications point in a collaboration with a first communications point to communicate with the UE, and to receive a third message from the candidate communications point, the third message including a resource reservation response indicating whether a subset of the available portion of the upper layer communications resource has been reserved as requested; and

a transmitter configured to send a second message to the candidate communications point, the second message including a resource reservation request to reserve the subset of the available portion of the upper layer communications resource.

28. The communications point of claim 27, further comprising a processor coupled to the receiver and to the transmitter, the processor configured to confirm a commitment of the subset of the available portion of the upper layer communications resource by the candidate communications point in response to determining that the resource reservation response indicates that the subset of the available portion of the upper layer communications resource has been reserved.

29. The communications point of claim 27, wherein the transmitter is configured to send a fourth message to the candidate communications point, the fourth message including a second resource reservation request to reserve a second subset of the available portion of the upper layer communications resource in response to determining that the resource reservation response indicates that the subset of the available portion of the upper layer communications resource has not been reserved, and wherein the receiver is configured to receive a fifth message from the candidate communications point, the fifth message including a second resource reservation response indicating whether the second subset of the available portion of the upper layer communications resource has been reserved as requested.

30. The communications point of claim 27, wherein the third message includes an updated resource report about a third available portion of the upper layer communications resource that can be committed by the candidate communications point in the collaboration with the first communications point to communicate with the UE.

31. The communications point of claim 27, wherein the transmitter is configured to send a sixth message to the candidate communications point, the sixth message including a first resource report inquiry to request an updated resource report about a second available portion of the upper layer communications resource that can be committed by the candidate communications point in the collaboration with the first communications point to communicate with the UE, and wherein the receiver is configured to receive a seventh message from the candidate communications point, the seventh message including the updated resource report.

32. A communications point comprising:

a receiver configured to receive a first message from a first communications point, the first message including a resource reconfiguration request indicating a change in a portion of an upper layer communications resource committed by the first communications point;

a processor coupled to the receiver, the processor configured to determine if a second communications point accepts a commitment of a second portion of the upper layer communications resource, the second portion of the upper layer communications resource according to the change in the portion of the upper layer communications resource; and

a transmitter configured to send a second message to the first communications point, the second message including a resource reconfiguration response indicating whether the second communications point accepted the commitment of the second portion of the upper layer resource.

33. The communications point of claim 32, wherein the processor is configured to send a third message to the second communications point, the third message including a resource reservation request to reserve the second portion of the upper layer communications resource, and wherein the receiver is configured to receive a fourth message from the second communications point, the fourth including a resource reservation response indicating whether the second portion of the upper layer communications resource has been reserved as requested.

34. The communications point of claim 32, wherein the processor is configured to determine if a third communications point accepts a commitment of a third portion of the upper layer communications resource, the third portion of the upper layer communications resource according to the change in the portion of the upper layer communications resource, in response to determining that the second communications point did not accept the commitment of the second portion of the upper layer communications resource or did not accept the commitment of the second portion of the upper layer communications resource in its entirety.

35. The communications point of claim 32, wherein the processor is configured to negotiate with the first communications point to modify the change in the portion of the upper layer communications resource in response to determining that the second communications point did not accept the commitment of the second portion of the upper layer communications resource or did not accept the commitment of the second portion of the upper layer communications resource in its entirety.