Radio transmitter, radio transmission method, wireless communication system, its programs and IFFT arithmetic circuit

摘要

PPROBLEM TO BE SOLVED: To perform circulation delay transmission CDT for each user. PSOLUTION: The present invention relates to a wireless transmitter comprising an IFFT arithmetic means for performing inverse fast-Fourier transformation on input data, corresponding to each of a plurality of transmit antennas, wherein the IFFT arithmetic means comprises a phase rotation amount generating means for generating a phase rotation amount for each of input data, the IFFT arithmetic means that is characterized in performing inverse fast-Fourier transformation on the input data, while making the phases of the input data rotate, based on the phase rotation amount generated by the phase rotation amount generating means. PCOPYRIGHT: (C)2007,JPO&INPIT