Patent ID: 8406173

Claim:
A mobile communication system in which a mobile station apparatus transmits uplink data to a base station apparatus using a physical uplink shared channel that is allocation by an uplink data transmission permission signal, the mobile communication system comprising: the base station apparatus allocates, to the mobile station apparatus, by using a radio resource control signal, a physical uplink control channel for the mobile station apparatus to transmit channel states information, allocates, to the mobile station apparatus, by using the radio resource control signal, the physical uplink shared channel for the mobile station apparatus to transmit the channel state information, the mobile station apparatus periodically transmits, to the base station apparatus, the channel states information using the physical uplink control channel in case that the physical uplink control channel has been allocated, and periodically transmits, to the base station apparatus, the channel states information using the physical uplink shared channel in case that the physical uplink shared channel has been allocated.