Scheduling information for wireless communications

Patent metadata

Field	Value
Publication number	US-9001777-B2
Application number	US-72435010-A
Country	US
Kind code	B2
Filing date	Mar 15, 2010
Priority date	Mar 17, 2009
Publication date	Apr 7, 2015
Grant date	Apr 7, 2015

Abstract

Systems and methods for communicating over multiple carriers are described herein. A predetermined event triggers the generation of scheduling information for two or more of the carriers. The predetermined event may comprise expiration of a timer set for at least one of the two or more carriers, storing data in a buffer having a higher transmission priority than data previously stored in the buffer, or changing at least one of the two or more carriers from being served by a first cell to being served by a second cell.

First claim

What is claimed is:

1. A method used for communicating scheduling information in a wireless communication system, the method comprising:
generating a first set of scheduling information bits on an anchor uplink carrier, the first set of scheduling information bits identifying an access terminal headroom for the anchor carrier;
generating a second set of scheduling information bits on the anchor uplink carrier, the second set of scheduling information bits identifying a common queue length for each of the anchor carrier and a supplementary carrier;
generating a third set of scheduling information bits on the supplementary uplink carrier, the third set of scheduling information bits identifying an access terminal headroom for the supplementary carrier; and
generating a fourth set of scheduling information bits on the supplementary uplink carrier, the fourth set of scheduling information bits identifying feedback information related to inter-cell interference caused by the access terminal.

2. The method of claim 1 , wherein the fourth set of scheduling information bits indicates a number of non-serving enhanced relative grant channel (E-RGCH) down commands received on each of the anchor carrier and the supplementary carrier.

3. The method of claim 1 , wherein the fourth set of scheduling information bits indicates a difference in a number of power control up commands received from the serving cell and strong non-serving cells on each carrier.

4. The method of claim 1 , wherein the fourth set of scheduling information bits indicates a downlink path loss differential between a serving cell and a strongest non-serving cell on each of the anchor carrier and the supplementary carrier.

5. The method of claim 1 , wherein the fourth set of scheduling information bits indicates a buffer status for a second highest priority logical channel.

6. An apparatus for communicating scheduling information in a wireless communication system, the apparatus comprising:
means for generating a first set of scheduling information bits on an anchor uplink carrier, the first set of scheduling information bits identifying an access terminal headroom for the anchor carrier;
means for generating a second set of scheduling information bits on the anchor uplink carrier, the second set of scheduling information bits identifying a common queue length for each of the anchor uplink carrier and a supplementary uplink carrier;
means for generating a third set of scheduling information bits on the supplementary carrier, the third set of scheduling information bits identifying an access terminal headroom for the supplementary uplink carrier; and
means for generating a fourth set of scheduling information bits on the supplementary uplink carrier, the fourth set of scheduling information bits identifying feedback information related to inter-cell interference caused by the access terminal.

7. The apparatus of claim 6 , wherein the fourth set of scheduling information bits indicates a number of non-serving enhanced relative grant channel (E-RGCH) down commands received on each of the anchor carrier and the supplementary carrier.

8. The apparatus of claim 6 , wherein the fourth set of scheduling information bits indicates a difference in a number of power control up commands received from the serving cell and strong non-serving cells on each carrier.

9. The apparatus of claim 6 , wherein the fourth set of scheduling information bits indicates a downlink path loss differential between a serving cell and a strongest non-serving cell on each of the anchor carrier and the supplementary carrier.

10. The apparatus of claim 6 , wherein the fourth set of scheduling information bits indicates a buffer status for a second highest priority logical channel.

11. A computer program product for communicating scheduling information in a wireless communication system, comprising:
a non-transitory computer-readable medium comprising code for:
generating a first set of scheduling information bits on an anchor uplink carrier, the first set of anchor carrier bits identifying an access terminal headroom for the anchor uplink carrier;
generating a second set of scheduling information bits on the anchor uplink carrier, the second set of anchor carrier bits identifying a common queue length for each of the anchor uplink carrier and a supplementary uplink carrier;
generating a third set of scheduling information bits on the supplementary uplink carrier, the third set of scheduling information bits identifying an access terminal headroom for the supplementary uplink carrier; and
generating a fourth set of scheduling information bits on the supplementary uplink carrier, the fourth set of scheduling information bits identifying feedback information related to inter-cell interference caused by the access terminal.

12. The computer program product of claim 11 , wherein the fourth set of scheduling information bits indicates a number of non-serving enhanced relative grant channel (E-RGCH) down commands received on each of the anchor carrier and the supplementary carrier.

13. The computer program product of claim 11 , wherein the fourth set of scheduling information bits indicates a difference in a number of power control up commands received from the serving cell and strong non-serving cells on each carrier.

14. The computer program product of claim 11 , wherein the fourth set of scheduling information bits indicates a downlink path loss differential between a serving cell and a strongest non-serving cell on each of the anchor carrier and the supplementary carrier.

15. The computer program product of claim 11 , wherein the fourth set of scheduling information bits indicates a buffer status for a second highest priority logical channel.

16. An apparatus for communicating scheduling information in a wireless communication system, the apparatus comprising:
a processor, configured for generating a first set of scheduling information bits on an anchor uplink carrier, the first set of scheduling information bits identifying an access terminal headroom for the anchor uplink carrier, generating a second set of scheduling information bits on the anchor uplink carrier, the second set of scheduling information bits identifying a common queue length for each of the anchor uplink carrier and a supplementary uplink carrier, generating a third set of scheduling information bits on the supplementary uplink carrier, the third set of scheduling information bits identifying an access terminal headroom for the supplementary uplink carrier, and generating a fourth set of scheduling information bits on the supplementary uplink carrier, the fourth set of scheduling information bits identifying feedback information related to inter-cell interference caused by the access terminal; and
a memory coupled to the processor for storing data.

17. The apparatus of claim 16 , wherein the fourth set of scheduling information bits indicates a number of non-serving enhanced relative grant channel (E-RGCH) down commands received on each of the anchor carrier and the supplementary carrier.

18. The apparatus of claim 16 , wherein the fourth set of scheduling information bits indicates a difference in a number of power control up commands received from the serving cell and strong non-serving cells on each carrier.

19. The apparatus of claim 16 , wherein the fourth set of scheduling information bits indicates a downlink path loss differential between a serving cell and a strongest non-serving cell on each of the anchor carrier and the supplementary ca

Assignees

• Zhang Danlu
• Sambhwani Sharad Deepak
• Gholmieh Aziz
• Kapoor Rohit
• Hou Jilei
• Ozturk Ozcan
• Bharadwaj Arjun
• Qualcomm Inc

Inventors

• Zhang Danlu
• Sambhwani Sharad Deepak
• Gholmieh Aziz
• Kapoor Rohit
• Hou Jilei
• Ozturk Ozcan
• Bharadwaj Arjun

Classifications

• H04W72/21

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04W72/52

  based on load · CPC title

• H04L5/0053 Primary

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04L5/0087

  when data requirements change · CPC title

• H04L5/0044

  Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH · CPC title