Patent ID: 8737330

Claim:
A method in a wireless communication device, the method comprising: determining transmission powers for at least two clusters, wherein each cluster includes at least one physical resource block; determining a difference in a characteristic of the transmission powers determined for the at least two clusters; and reducing a transmit power allocated to at least one cluster if the difference in the power characteristic exceeds the threshold; wherein reducing the transmit power allocated to the at least one cluster based on: ∑ j ≠ j 0 ⁢ ⁢ w j ⁡ ( i ) · P ^ PUSCH , j ⁡ ( i ) ≤ P ^ c , max ⁡ ( i ) - P ^ PUCCH ⁡ ( i ) - P ^ PUSCH , j 0 ⁡ ( i ) ⁢ max j ⁢ ( w j ⁡ ( i ) ⁢ P ^ PUSCH , j ⁡ ( i ) ) - min j ⁢ ( w j ⁡ ( i ) · P ^ PUSCH , j ⁡ ( i ) ) ≤ P spread , where ⁢ ⁢ min j ⁢ ( ) ⁢ ⁢ is ⁢ ⁢ taken ⁢ ⁢ over ⁢ ⁢ only ⁢ ⁢ positive ⁢ - ⁢ valued ⁢ ⁢ arguments where {circumflex over (P)} PUSCH,j (i) is a linear value of the power allocated to a j-th Physical Uplink Shared Channel (“PUSCH”) in subframe i; {circumflex over (P)} c,max (i) is a configured maximum transmit power; {circumflex over (P)} PUCCH (i) is a linear value of the power allocated to a Physical Uplink Control Channel (“PUCCH”) in subframe i; w j (i) is a power scaling factor applied to a j-th PUSCH in subframe i; Index j=j0 corresponds to a PUSCH carrying Uplink Control Information; wherein a power scaling factor w j (i) is set to zero for at least one index j; and wherein the power allocated to each cluster is a function of pathloss between the wireless communication device and a serving base station.