MOBILE TERMINAL APPARATUS AND RADIO COMMUNICATION METHOD

摘要

Provided are a mobile terminal apparatus and a wireless communication method whereby feedback control information can be efficiently transmitted over a physical uplink control channel. The mobile terminal apparatus receives downlink shared data channels in parallel via a plurality of CCs; determines ACK/NACK/DTX for the downlink shared data channel signals; encodes the determination results (states) of the plurality of CCs in the mass after reducing a number of states that allows communications to be performed individually; performs a signal processing such that the encoded data are orthogonalized between the users; and transmits the signals as processed.