An IF unit to an RF unit generate a packet signal containing a control signal and a data signal and transmits the thus generated packet signal. A radio control unit performs a first retransmission control or a second retransmission control on the packet signal transmitted. The radio control unit causes the IF unit to the RF unit to have first control information for the first retransmission control contained in the control signal and have second control information for the second retransmission control contained in the data signal.