Patent ID: 8891463

Claim:
A communications unit for use in a wireless communication system, said communications unit comprising a scheduling unit arranged to schedule at least one user terminal to which to transmit in each subframe; a power allocation unit arranged to allocate a first amount of power to be used for transmission to the at least one user terminal in each subframe; a power optimizing unit arranged to determine, after scheduling has been performed for a chosen subframe, if there is excess power in the chosen subframe that has not been allocated to any user terminal and if so allocate at least a first part of the excess power to at least one user terminal scheduled in the subframe; and a Channel Quality Indicator (CQI) adjustment unit for adjusting the CQI reported from the at least first user terminal in dependence of ACK/NACK signals received from the at least first user terminal, wherein the CQI adjustment unit is arranged to adjust CQI taking into account ACK/NACK signals related to transport blocks in which no excess power was allocated to the at least first user terminal to a higher degree than ACK/NACK signals related to transport blocks in which excess power was allocated to the at least first user terminal.