Patent ID: 8693425

Claim:
A mobile station apparatus comprising: a radio resource control generator configured to include mobile station apparatus capability information in a radio resource control message; and a transmitter configured to transmit the radio resource control message including the mobile station apparatus capability information to a base station apparatus, wherein the mobile station apparatus capability information includes first and second information, the first information includes a first frequency band number indicating a first frequency band of a plurality of frequency bands supported by the mobile station apparatus, the first frequency band includes a first sub-frequency band used for a first aggregated component carrier for uplink, and a second sub-frequency band used for a second aggregated component carrier for downlink, the first aggregated component carrier includes at least one component carrier, the second aggregated component carrier includes at least one component carrier, the second information includes first and second indicators respectively associated with the first and second sub-frequency bands, the first indicator indicates a first frequency bandwidth of the first aggregated component carrier and a first number of the at least one component carrier included in the first aggregated component carrier, and the second indicator indicates a second frequency bandwidth of the second aggregated component carrier and a second number of the at least one component carrier included in the second aggregated component carrier.