Methods and devices for calculation of uplink transmission power

1. A method in a mobile station for a long term evolution network, the method comprising:

receiving an indication of a non-contiguous allocation of resource blocks for an uplink transmission;

determining a first additional maximum power reduction (“A-MPR”) based on a smallest contiguous allocation containing the non-contiguous allocation and an allocation correction factor;

determining a second A-MPR as a non-contiguous A-MPR for the non-contiguous allocation;

calculating an uplink transmission power based on a lesser of the first A-MPR and the second A-MPR; and

performing the uplink transmission based on the uplink transmission power.

2. The method of claim 1 wherein determining the first A-MPR comprises:

determining a contiguous A-MPR for the smallest contiguous allocation containing the non-contiguous allocation based on a contiguous allocation table lookup;

determining the allocation correction factor based on a ratio of a number L of resource blocks in the smallest contiguous allocation to a number M of resource blocks in the non-contiguous allocation; and

determining the first A-MPR as a sum of the contiguous A-MPR and the allocation correction factor.

3. The method of claim 2 wherein the allocation correction factor is 10 log 10 (L/M).

4. The method of claim 2 wherein the contiguous allocation table lookup is based on at least one of: a starting index of the non-contiguous allocation, an ending index of the non-contiguous allocation, the number M of allocated resource blocks in the non-contiguous allocation, and a modulation and coding scheme for the uplink transmission.

5. The method of claim 1 wherein determining the second A-MPR comprises performing a predetermined function based on an allocation ratio of the non-contiguous allocation.

6. The method of claim 5 further comprising determining the allocation ratio as a ratio of a number M of resource blocks in the non-contiguous allocation to the maximum number N RB _ agg of aggregated resource blocks available for the uplink transmission.

7. The method of claim 6 further comprising selecting a non-contiguous resource allocation A-MPR function based on a carrier aggregation network signaling value.

8. A method in a mobile station for a long term evolution network, the method comprising:

receiving an indication of a resource allocation of resource blocks for an uplink transmission;

determining whether the resource allocation is contiguous;

determining a contiguous additional maximum power reduction (“A-MPR”) as a selected A-MPR if the resource allocation is a contiguous allocation;

if the resource allocation is a non-contiguous allocation:

determining an allocation correction factor based on a ratio of a bandwidth L of resource blocks of a smallest contiguous allocation containing the non-contiguous allocation to a number M of allocated resource blocks in the non-contiguous allocation;

determining a modified contiguous A-MPR for the non-contiguous allocation by adding the allocation correction factor to an A-MPR for the smallest contiguous allocation containing the non-contiguous allocation;

determining a non-contiguous A-MPR by performing a predetermined function based on the allocation ratio of the non-contiguous allocation; and

selecting a lesser of the modified contiguous A-MPR and the non-contiguous A-MPR as the selected A-MPR;

calculating an uplink transmission power based on the selected A-MPR; and

performing the uplink transmission based on the uplink transmission power.

9. The method of claim 8 wherein determining the contiguous A-MPR comprises performing a contiguous allocation table lookup based on the bandwidth L of the smallest contiguous allocation containing the non-contiguous allocation.

10. The method of claim 8 further comprising:

determining an allocation ratio as a ratio of a number M of allocated resource blocks in the resource allocation to a maximum number N RB _ agg of aggregated resource blocks available for the uplink transmission; and

determining the non-contiguous A-MPR based on a table lookup with the allocation ratio.

11. The method of claim 8 wherein determining the modified contiguous A-MPR comprises:

performing a contiguous allocation table lookup based on the bandwidth L of the smallest resource allocation to determine the contiguous A-MPR; and

determining the modified A-MPR as a sum of the contiguous A-MPR and the allocation correction factor.

12. The method of claim 11 further comprising determining the non-contiguous A-MPR based on a table lookup.

13. The method of claim 11 wherein the allocation correction factor is 10 log 10 (L/M).

14. A method in a base station for a long term evolution network, the method comprising:

allocating a non-contiguous allocation of resource blocks for an uplink transmission from a mobile station;

determining a first additional maximum power reduction (“A-MPR”) based on a smallest contiguous allocation containing the non-contiguous allocation and an allocation correction factor;

determining a second A-MPR as a non-contiguous A-MPR for the non-contiguous allocation; and

decoding the uplink transmission based on the non-contiguous allocation of resource blocks and a lesser of the first A-MPR and the second A-MPR.

15. The method of claim 14 further comprising selecting a modulation and coding scheme for the uplink transmission based on the lesser of the first A-MPR and the second A-MPR.

16. The method of claim 14 wherein decoding the uplink transmission comprises performing channel estimation for the uplink transmission based on the lesser of the first A-MPR and the second A-MPR.

17. The method of claim 14 wherein determining the first A-MPR comprises:

determining a contiguous A-MPR for the smallest contiguous allocation based on a contiguous allocation table lookup;

determining the allocation correction factor based on a ratio of a number L of resource blocks in the smallest contiguous allocation to a number M of resource blocks in the non-contiguous allocation; and

determining the first A-MPR as a sum of the contiguous A-MPR and the allocation correction factor.

18. The method of claim 17 wherein the allocation correction factor is 10 log 10 (L/M).

19. The method of claim 14 wherein determining the second A-MPR comprises performing a predetermined function based on an allocation ratio of the non-contiguous allocation.

20. The method of claim 19 further comprising determining the allocation ratio as a ratio of a number M of resource blocks in the non-contiguous allocation to a maximum number N RB _ agg of aggregated resource blocks available for the uplink transmission.