A mobile station apparatus comprising: a transmission circuitry being adapted to transmit a random access preamble by using a physical random access channel in a primary cell or a secondary cell and to transmit control information by using a physical uplink control channel in the primary cell; a reception circuitry (10.5) being adapted to receive a downlink control information format including a transmission power control command for the physical uplink control channel by using a physical downlink control channel; and a transmission power control circuitry being adapted to configure transmission power for the physical uplink control channel in a subframe by using a first parameter that is calculated by accumulating a value indicated by the transmission power control command and a second parameter that is specified by a higher layer, wherein the reception circuitry is further adapted to receive a random access response corresponding to the random access preamble by using the physical downlink shared channel the random access response being for the primary cell or the random access response being for the secondary cell, and the transmission power control circuitry is further adapted to reset the accumulated first parameter when the random access response for the primary cell is received. a transmission circuitry being adapted to transmit a random access preamble by using a physical random access channel in a primary cell or a secondary cell and to transmit control information by using a physical uplink control channel in the primary cell; being adapted to transmit a random access preamble by using a physical random access channel in a primary cell or a secondary cell and to transmit control information by using a physical uplink control channel in the primary cell; a reception circuitry (10.5) being adapted to receive a downlink control information format including a transmission power control command for the physical uplink control channel by using a physical downlink control channel; and being adapted to receive a downlink control information format including a transmission power control command for the physical uplink control channel by using a physical downlink control channel; and a transmission power control circuitry being adapted to configure transmission power for the physical uplink control channel in a subframe by using a first parameter that is calculated by accumulating a value indicated by the transmission power control command and a second parameter that is specified by a higher layer, wherein a first parameter that is calculated by accumulating a value indicated by the transmission power control command and a second parameter that is specified by a higher layer, the reception circuitry is further adapted to receive a random access response corresponding to the random access preamble by using the physical downlink shared channel the random access response being for the primary cell or the random access response being for the secondary cell, and the random access response being for the primary cell or the random access response being for the secondary cell, and the transmission power control circuitry is further adapted to reset the accumulated first parameter when the random access response for the primary cell is received.