MOBILE TERMINAL DEVICE AND UPLINK CONTROL INFORMATION SIGNAL TRANSMISSION METHOD

摘要

The present invention is provided to, when there is a PUSCH signal to transmit in the same subframe as a UCI signal, make the method of transmitting uplink control information in the LTE system adaptable to a broader system band and increase in transmission layers only by minor changes. A UCI signal is generated to a base station apparatus (20) of a mobile communication system having a system band composed of plural component carriers. The UCI signal is multiplexed to a PUSCH signal in each of component carriers where the PUSCH signal is transmitted in the same subframe as the UCI signal. The PUSCH signal to which the UCI signal is multiplexed is transmitted to the base station apparatus (20).