MOBILE STATION APPARATUS, COMMUNICATION METHOD, INTEGRATED CIRCUIT, RADIO COMMUNICATION SYSTEM, AND CONTROL PROGRAM

摘要

Provided is a wireless communication system which is constituted by a plurality of mobile station apparatuses and a base station apparatus and in which uplink reference signals and uplink control channel signals can be efficiently controlled, thereby allowing the mobile station apparatuses to perform appropriate signal transmissions. There are included a radio resource control unit (403) that sets the radio resources of reference signals each used for determining a channel quality and also sets the radio resources of uplink control channels; a simultaneous transmission control unit (4051) that, if the signals of the uplink control channels are to be transmitted in a time frame in which the radio resources of the reference signals have been set, controls the transmissions of the signals in accordance with whether the radio resources have been set in the same element frequency band or in different element frequency bands; and a transmitting unit (407) that transmits, based on the control of the simultaneous transmission control unit, the reference signals and/or the signals of the uplink control channels.