The present invention is designed to reduce the impact of communication using TTIs with different numbers of symbols (or different numbers of REs) on the throughput of data channels. A transmitting/receiving section that transmits and receives signals using a plurality of transmission time intervals (TTIs) with different numbers of symbols, and a control section that controls the transmission and receipt of the signals by applying a predetermined transport block size (TBS) in each TTI are provided, where the predetermined TBS in each TTI is controlled according to the number of symbols in each TTI or a target coding rate that is configured in advance.