A transmitter comprises: a division unit configured to divide a transmission data sequence into multiple sequences corresponding to multiple transmit antennas; an attachment unit configured to attach a CRC bit to each of the resulting sequences from the division unit; a channel coding unit configured to perform channel coding on each of the CRC bit attached sequences; a hybrid ARQ processing unit configured to perform a hybrid ARQ operation on each of the channel coded sequences; a mapping unit configured to map each of the resulting sequences from the hybrid ARQ processing unit into a frequency block; and a modulation unit configured to perform adaptive data modulation on each of the mapped sequences. A channel coding rate applied for the channel coding is controlled per transmission time interval, the hybrid ARQ operation is controlled per the transmission time interval, the frequency block is scheduled in a frequency domain, the scheduling being controlled per frequency block, and a modulation scheme applied for the adaptive data modulation is controlled per the transmission time interval.