Transmission apparatus, transmission method, reception apparatus and reception method

摘要: A disclosed transmission apparatus includes a multiplexing portion that multiplexes common pilot channel, shared control and data channel; symbol generation performs an inverse Fourier transformation on the multiplexed signal so as to generate symbol; transmits generated symbol. The channel including information necessary for demodulation of payload be used by plural users in frequency direction, time direction with respect channel. Even when number symbols composing interval (TTI) is reduced, efficiency channels excluding can maintained reducing insertion intervals accordingly.