Method and System for Uplink Control Channel Transmit Diversity Using Multiple Downlink Control Channel Based Resource Allocation

1 . A method of allocating uplink resources for hybrid automatic repeat request acknowledgement at a user equipment (UE), the method comprising:

indicating a first set of uplink resources to the user equipment; and

indicating a first subset of the first set of uplink resources that the UE may transmit upon using a position of a first downlink control channel (DCCH) scheduling a downlink shared channel (DSCH) on a cell.

2 . The method of claim 1 , further comprising indicating a second subset of uplink resources that the UE may transmit upon using downlink control information bits within a remaining downlink control channel that schedules the DSCH on the cell.

3 . The method of claim 1 , wherein the position of the first DCCH is based on an index of a control channel element within the first DCCH.

4 .- 6 . (canceled)

7 . The method of claim 2 , wherein the downlink control information bits utilize power control bits.

8 . The method of claim 2 , further comprising utilizing the same lookup function for both the indicating the first subset and the indicating the second subset.

9 . The method of claim 2 , further comprising:

assuming the resources from the indicating the first subset are not always identical to the resources from the indicating the second subset; and

utilizing a rule for disambiguation of the first subset and the second subset.

10 .- 24 . (canceled)

25 . A method at a user equipment (UE) for receiving an allocation of uplink resources for hybrid automatic repeat request acknowledgement, the method comprising:

receiving a first set of uplink resources from a network element; and

deriving a first subset of the first set of uplink resources that the UE may transmit upon using a position of a first downlink control channel (DCCH) scheduling a downlink shared channel (DSCH) on a cell.

26 . The method of claim 25 , further comprising deriving a second subset of uplink resources that the UE may transmit upon using downlink control information bits within a remaining downlink control channel that schedules the DSCH on the cell.

27 . The method of claim 25 , wherein the position of the first DCCH is based on an index of a control channel element within the first DCCH.

28 .- 30 . (canceled)

31 . The method of claim 26 , wherein the downlink control information bits utilize power control bits.

32 . The method of claim 26 , further comprising utilizing the same lookup function for both the deriving the first subset and the deriving the second subset.

33 . The method of claim 26 , further comprising:

assuming the resources from the deriving the first subset are not always identical to the resources from the deriving the second subset; and

utilizing a rule for disambiguation of the first subset and the second subset.

34 .- 48 . (canceled)

49 . A method of allocating uplink resources for hybrid automatic repeat request acknowledgement at a user equipment (UE), the method comprising:

indicating a first set of uplink resources to the user equipment;

indicating a first subset of the first set of uplink resources that the UE may transmit upon using downlink control information bits within a first downlink control channel that schedules a downlink shared channel (DSCH) on a primary cell, wherein the first downlink control channel is transmitted on the primary cell; and

indicating a second subset of the first set of uplink resources that the UE may transmit upon by downlink control information bits within a second downlink control channel, wherein the uplink resources in the second subset may be the same as the uplink resources in the first subset of uplink resources.

50 . The method of claim 49 , wherein the downlink control information bits utilize power control bits.

51 . The method of claim 50 , further comprising deriving power control for an uplink control channel (UCCH) utilizing a cyclic redundancy check masked by a transmission power control bit.

52 .- 53 . (canceled)

54 . The method of claim 50 , wherein at least the first and the second downlink control channels each utilize a cyclic redundancy check masked by a transmission power control bit to derive power control for an uplink control channel (UCCH).

55 . The method of claim 54 , wherein, if all the cyclic redundancy checks masked by a transmission power control bit are not identical, the method further comprises differentiating between cyclic redundancy checks masked by a transmission power control bit.

56 . The method of claim 55 , wherein the differentiating selects a cyclic redundancy check masked by a transmission power control bit in one of at least the first and the second downlink control channels with a particular downlink assignment index.

57 .- 81 . (canceled)

82 . A user equipment (UE) for receiving an allocation of uplink resources for hybrid automatic repeat request acknowledgement, the user equipment comprising:

a processor; and

a communications subsystem,

wherein the processor and communications subsystem are configured to:

receive a first set of uplink resources to the user equipment;

derive a first subset of the first set of uplink resources that the UE may transmit upon using downlink control information bits within a first downlink control channel that schedules a downlink shared channel (DSCH) on a primary cell, wherein the first downlink control channel is received on the primary cell; and

derive a second subset of the first set of uplink resources that the UE may transmit upon by downlink control information bits within a second downlink control channel, wherein the uplink resources in the second subset may be the same as the uplink resources in the first subset of uplink resources.

83 . The user equipment of claim 82 , wherein the downlink control information bits utilize power control bits.

84 . The user equipment of claim 83 , wherein the processor and communications subsystem are further configured to derive power control for an uplink control channel (UCCH) utilizing a cyclic redundancy check masked by a transmission power control bit.

85 .- 86 . (canceled)

87 . The user equipment of claim 83 , wherein at least the first and the second downlink control channels each utilize a cyclic redundancy check masked by a transmission power control bit to derive power control for an uplink control channel (UCCH).

88 . The user equipment of claim 87 , wherein, if all the cyclic redundancy checks masked by a transmission power control bit are not identical, the processor and communications subsystem are further configured to differentiate between cyclic redundancy check masked by a transmission power control bit.

89 . The user equipment of claim 88 , wherein the differentiating uses a cyclic redundancy check masked by a transmission power control bit in one of at least the first and the second downlink control channels with a particular downlink assignment index.

90 .- 92 . (canceled)