Patent ID: 8824349

Claim:
A mobile station apparatus that performs communication with a base station apparatus using a plurality of component frequency bands, each band of the plurality of component frequency bands being a band having a predetermined frequency bandwidth, the mobile station apparatus comprising: a controller to set up an upper limit value of transmission power of each component frequency band in accordance with the number of component frequency bands to which radio resources are allocated at a time; and a transmission processor to adjust the transmission power of each component frequency band based on the upper limit value of transmission power set at the controller, wherein the adjusting of the transmission power is according to the following formula: min{[the upper limit value of the average transmission power of each uplink component frequency band], 10 log 10 ([the number of allocated uplink resource block pairs])+[Reference transmission power control value]+[Coefficient multiplied with pass loss]×[Pass loss]+[Modulation scheme-dependent power offset value]+[Transmission power control value]}, and the transmission processor transmits a signal using radio resources of a plurality of component frequency bands.