Uplink control channel resource allocation for transmit diversity

1. A method for resource allocation for an uplink control channel for a user equipment (UE) using multiple transmit antennas in a wireless communication network, comprising:

determining a plurality of uplink control channel resources for the UE; and

receiving control information from the UE on the plurality of uplink control channel resources, each uplink control channel resource of the plurality of uplink control channel resources being mapped to a different transmit antenna of the UE;

wherein a first uplink control channel resource of the plurality of uplink control channel resources is determined based at least in part on a control channel element (CCE) of a downlink control channel, and

wherein a second uplink control channel resource of the plurality of uplink control channel resources is determined based at least in part on the CCE and an offset.

2. The method of claim 1 , wherein the plurality of uplink control channel resources are determined based at least in part on semi-persistent scheduling (SPS), and wherein the control information comprises acknowledgement/non-acknowledgment (ACK/NACK) feedback from the UE.

3. The method of claim 2 , further comprising transmitting a transmit power correction command to the UE, the transmit power correction command including an indication that the plurality of uplink control channel resources are based at least in part on semi-persistent scheduling (SPS).

4. The method of claim 1 , wherein the plurality of uplink control channel resources are used by the UE for transmitting one or more of a scheduling request (SR), acknowledgement/non-acknowledgment (ACK/NACK) feedback, a channel quality indicator (CQI), or a combination thereof.

5. The method of claim 1 , wherein the wireless communication network is configured for downlink (DL) data transmission over a plurality of DL carriers.

6. The method of claim 5 , wherein the control information comprises one or more of a scheduling request (SR), acknowledgement/non-acknowledgment (ACK/NACK) feedback related to the DL data transmission, a channel quality indicator (CQI), or a combination thereof.

7. The method of claim 5 , wherein the control information is received over a plurality of uplink (UL) carriers, each UL carrier in the plurality of UL carriers corresponding to a respective one of the plurality of DL carriers.

8. The method of claim 7 , wherein the determining the plurality of uplink control channel resources comprises selecting at least two uplink control channel resources from a plurality of available uplink control channel resources based on an uplink (UL) path loss associated with each of the plurality of available uplink control channel resources.

9. The method of claim 5 , wherein the control information is received over a single UL carrier, the single UL carrier carrying acknowledgement/non-acknowledgement (ACK/NACK) messages associated with the DL data transmission over the plurality of DL carriers.

10. The method of claim 9 , wherein the determining the plurality of uplink control channel resources comprises selecting at least two uplink control channel resources from a plurality of available uplink control channel resources, and wherein the at least two uplink control channel resources are closest to an edge of a bandwidth of the single UL carrier in comparison to the remainder of the plurality of available uplink control channel resources.

11. The method of claim 1 , wherein the wireless communication network is configured for downlink (DL) data transmission over a plurality of DL subframes, and wherein the determining the plurality of uplink control channel resources includes determining a set of uplink control channel resources that will be used by the UE on the uplink control channel from a plurality of available uplink control channel resources.

12. The method of claim 11 , wherein the control information comprises acknowledgment/non-acknowledgement (ACK/NACK) feedback of the DL data transmission.

13. The method of claim 11 , wherein the control information is received over a single uplink (UL) subframe, the single UL subframe carrying acknowledgement/non-acknowledgement (ACK/NACK) feedback associated with the DL data transmission over the plurality of DL subframes.

14. The method of claim 13 , wherein the determining the set of uplink control channel resources comprises selecting at least two uplink control channel resources from the plurality of available uplink control channel resources, and wherein the at least two uplink control channel resources are closest to an edge of a bandwidth of the single UL subframe in comparison to the remainder of the plurality of available uplink control channel resources.

15. A method for resource allocation for an uplink control channel for a user equipment (UE) using multiple transmit antennas in a wireless communication network, comprising:

determining a plurality of uplink control channel resources for the UE; and

transmitting control information via the plurality of uplink control channel resources, each of the plurality of uplink control channel resources being mapped to a different transmit antenna of the UE;

wherein a first uplink control channel resource of the plurality of uplink control channel resources is determined based at least in part on a control channel element (CCE) of a downlink control channel, and

wherein a second uplink control channel resource of the plurality of uplink control channel resources is determined based at least in part on the CCE and an offset.

16. The method of claim 15 , wherein the plurality of uplink control channel resources are determined based at least in part on semi-persistent scheduling (SPS), and wherein the control information includes acknowledgement/non-acknowledgment (ACK/NACK) feedback from the UE.

17. The method of claim 15 , wherein the control information includes a scheduling request (SR) from the UE.

18. The method of claim 17 , wherein the control information includes simultaneous acknowledgement/non-acknowledgment (ACK/NACK) feedback and SR feedback from the UE.

19. The method of claim 18 , wherein the control information includes the SR feedback transmitted on a first uplink control channel resource of the plurality of uplink control channel resources and further includes the acknowledgement/non-acknowledgment (ACK/NACK) feedback transmitted on a second uplink control channel resource of the plurality of uplink control channel resources.

20. The method of claim 18 , wherein the control information includes the acknowledgement/non-acknowledgment (ACK/NACK) feedback transmitted on the plurality of uplink control channel resources allocated to SR feedback.

21. The method of claim 15 , wherein the control information includes a channel quality indicator (CQI) from the UE.

22. The method of claim 15 , wherein the control information comprises acknowledgment/non-acknowledgement (ACK/NACK) feedback associated with a downlink transmission over a single DL carrier.

23. The method of claim 15 , wherein the CCE has an index of n_cce, and the offset is a nonzero integer.

24. The method of claim 15 , wherein the wireless communication network is configured for downlink (DL) data reception over a plurality of DL carriers, and wherein the determining the plurality of uplink control channel resources includes determining a set of uplink control channel resources from a plurality of available uplink control channel resources.

25. The method of claim 24 , wherein the control information is transmitted over a plurality of uplink (UL) carriers, each UL carrier in the plurality of UL carriers corresponding to a respective one of the plurality of DL carriers.

26. The method of claim 25 , wherein the determined set of uplink control channel resources comprises at least two uplink control channel resources that are determined from the plurality of available uplink control channel resources based on an uplink (UL) path loss associated with each of the plurality of available uplink control channel resources.

27. The method of claim 26 , wherein the control information is transmitted over a single UL carrier, the single UL carrier carrying acknowledgement/non-acknowledgement (ACK/NACK) messages associated with the DL data reception over the plurality of DL carriers.

28. The method of claim 26 , wherein the determined set of uplink control channel resources comprises at least two uplink control channel resources that are determined among the plurality of available uplink control channel resources based on a proximity of each of the plurality of available uplink control channel resources to an edge of a bandwidth of the single UL carrier.

29. The method of claim 15 , wherein the wireless communication network is configured for downlink (DL) data reception over a plurality of DL subframes, and wherein the determining the plurality of uplink control channel resources includes determining a set of uplink control channel resources from a plurality of available uplink control channel resources.

30. The method of claim 29 , wherein the control information is transmitted over a single UL subframe, the single UL subframe carrying acknowledgement/non-acknowledgement (ACK/NACK) feedback associated with the DL data reception over the plurality of DL subframes.

31. The method of claim 30 , wherein the set of uplink control channel resources comprises at least two uplink control channel resources that are determined from the plurality of available uplink control channel resources based on a proximity of each of the plurality of available uplink control channel resources to an edge of a bandwidth of the single UL subframe.

32. The method of claim 29 , wherein the DL data transmission occurs in a time division duplex (TDD) mode.

33. A wireless communication apparatus for use in a wireless communication network, the apparatus supporting resource allocation for an uplink control channel for a user equipment (UE) using multiple transmit antennas, the apparatus comprising:

means for determining a plurality of uplink control channel resources for the UE; and

means for receiving control information from the UE on the plurality of uplink control channel resources, each uplink control channel resource of the plurality of uplink control channel resources being mapped to a different transmit antenna of the UE;

wherein a first uplink control channel resource of the plurality of uplink control channel resources is determined based at least in part on a control channel element (CCE) of a downlink control channel, and

wherein a second uplink control channel resource of the plurality of uplink control channel resources is determined based at least in part on the CCE and an offset.

34. The apparatus of claim 33 , wherein the wireless communication network is configured for downlink (DL) data transmission over a plurality of DL carriers, and wherein the control information comprises one or more of a scheduling request (SR), acknowledgement/non-acknowledgment (ACK/NACK) feedback, a channel quality indicator (CQI), or a combination thereof.

35. The apparatus of claim 33 , wherein the wireless communication network is configured for downlink (DL) data transmission over a plurality of DL subframes, and wherein the control information comprises acknowledgment/non-acknowledgement (ACK/NACK) feedback of the DL data transmission.

36. A computer program product comprising a non-transitory computer-readable storage medium including instructions that cause a computer to:

determine a plurality of uplink control channel resources for a user equipment (UE) with multiple transmit antennas; and

receive control information from the UE on the plurality of uplink control channel resources, each uplink control channel resource of the plurality of uplink control channel resources being mapped to a different transmit antenna of the UE;

wherein a first uplink control channel resource of the plurality of uplink control channel resources is determined based at least in part on a control channel element (CCE) of a downlink control channel, and

wherein a second uplink control channel resource of the plurality of uplink control channel resources is determined based at least in part on the CCE and an offset.

37. A wireless communication apparatus for use in a wireless communication network, the apparatus supporting resource allocation for an uplink control channel for a user equipment (UE) using multiple transmit antennas, the apparatus comprising:

a processor configured for:

determining a plurality of uplink control channel resources for the UE; and

receiving control information from the UE on the plurality of uplink control channel resources, each uplink control channel resource of the plurality of uplink control channel resources being mapped to a different transmit antenna of the UE;

wherein a first uplink control channel resource of the plurality of uplink control channel resources is determined based at least in part on a control channel element (CCE) of a downlink control channel, and

wherein a second uplink control channel resource of the plurality of uplink control channel resources is determined based at least in part on the CCE and an offset.

38. A wireless communication apparatus for use in a wireless communication network, the apparatus supporting resource allocation for an uplink control channel using multiple transmit antennas, the apparatus comprising:

means for determining a plurality of uplink control channel resources for a user equipment (UE); and

means for transmitting control information via the plurality of uplink control channel resources, each of the plurality of uplink control channel resources being mapped to a different transmit antenna of the UE;

wherein a first uplink control channel resource of the plurality of uplink control channel resources is determined based at least in part on a control channel element (CCE) of a downlink control channel, and

wherein a second uplink control channel resource of the plurality of uplink control channel resources is determined based at least in part on the CCE and an offset.

39. The apparatus of claim 38 , wherein the plurality of uplink control channel resources are determined based at least in part on semi-persistent scheduling (SPS), and the control information includes acknowledgement/non-acknowledgment (ACK/NACK) feedback.

40. The apparatus of claim 38 , wherein the control information includes an scheduling request (SR) feedback transmitted on a first uplink control channel resource of the plurality of uplink control channel resources and further includes an acknowledgement/non-acknowledgment (ACK/NACK) feedback transmitted on a second uplink control channel resource of the plurality of uplink control channel resources.

41. The apparatus of claim 38 , wherein the wireless communication network is configured for downlink (DL) data reception over a plurality of DL carriers, wherein the means for determining the plurality of uplink control channel resources includes means for determining a set of uplink control channel resources from a plurality of available uplink control channel resources based on an uplink (UL) path loss associated with each of the plurality of available uplink control channel resources, and wherein the means for transmitting the control information includes means for transmitting the control information over a plurality of uplink (UL) carriers, each UL carrier in the plurality of UL carriers corresponding to a respective one of the plurality of DL carriers.

42. The apparatus of claim 38 , wherein the wireless communication network is configured for downlink (DL) data reception over a plurality of DL carriers, wherein the means for determining the plurality of uplink control channel resources includes means for determining a set of uplink control channel resources from a plurality of available uplink control channel resources based on a proximity of each of the plurality of available uplink control channel resources to an edge of a bandwidth of a single UL carrier, and wherein the means for transmitting the control information includes means for transmitting the control information over the single UL carrier.

43. The apparatus of claim 38 , wherein the wireless communication network is configured for downlink (DL) data reception over a plurality of DL subframes, and wherein the means for determining the plurality of uplink control channel resources includes means for determining a set of uplink control channel resources from a plurality of available uplink control channel resources.

44. The apparatus of claim 43 , wherein the means for transmitting the control information includes means for transmitting the control information over a single UL subframe, the control information including acknowledgement/non-acknowledgement (ACK/NACK) feedback associated with the DL data reception over the plurality of DL subframes.

45. The apparatus of claim 44 , wherein the means for determining the plurality of uplink control channel resources includes means for determining the set of uplink control channel resources from a plurality of available uplink control channel resources based on a proximity of each of the plurality of available uplink control channel resources to an edge of a bandwidth of the single UL subframe.

46. A computer program product comprising a non-transitory computer-readable storage medium including instructions that cause a computer to:

determine a plurality of uplink control channel resources for a user equipment (UE) with multiple transmit antennas; and

transmitting control information via the plurality of uplink control channel resources, each of the plurality of uplink control channel resources being mapped to a different transmit antenna of the UE;

wherein a first uplink control channel resource of the plurality of uplink control channel resources is determined based at least in part on a control channel element (CCE) of a downlink control channel, and

wherein a second uplink control channel resource of the plurality of uplink control channel resources is determined based at least in part on the CCE and an offset.

47. A wireless communication apparatus for use in a wireless communication network, the apparatus supporting resource allocation for an uplink control channel using multiple transmit antennas, the apparatus comprising:

a processor configured for:

determining a plurality of uplink control channel resources for a user equipment (UE); and

transmitting control information via the plurality of uplink control channel resources, each of the plurality of uplink control channel resources being mapped to a different transmit antenna of the UE;

wherein a first uplink control channel resource of the plurality of uplink control channel resources is determined based at least in part on a control channel element (CCE) of a downlink control channel, and

wherein a second uplink control channel resource of the plurality of uplink control channel resources is determined based at least in part on the CCE and an offset.