Patent ID: 8098763

Claim:
A multicarrier wireless transmission device the multicarrier wireless transmission device comprising: a delay imparting section for performing processing for varying delay times applied to the transmission signals supplied to n transmission antennas with respect to users or physical channels, wherein n is an integer of a value of two or more; a multicarrier transmission device equipped with the n transmission antennas, wherein the multicarrier transmission device performs transmission using different transmission diversities with respect to the users or the physical channels; a plurality of user-dependent signal processors for performing modulation processing in units of the transmission signals with respect to the users; a sub-carrier assignment section for assigning sub-carriers to signals output from the user-dependent signal processors in accordance with a sub-carrier assignment signal; and a plurality of antenna-dependent signal processors for performing signal processing on signals output from the sub-carrier assignment section in units of the n transmission antennas, wherein the delay imparting section includes a phase rotation section for applying prescribed values of a phase rotation to signals output from the sub-carrier assignment section with respect to the users or the physical channels and with respect to the sub-carriers, and an inverse fast Fourier transform (IFFT) section for performing frequency-time conversion.