Patent ID: 7903748
Filing Date: 2011-03-08
Classification: H04L

Abstract:
1. A transmitter apparatus for performing transmission using transmission signals generated on the basis of data symbols of a specified transmission method, said transmitter apparatus, comprising: an FFT processing part configured to generate frequency domain data from the data symbols; an interleaver configured to generate interleave-processed data by performing specified rearrangement processes on the frequency domain data converted by said FFT processing part, said interleaver having an interleaver memory for storing the frequency domain data generated by said FFT processing part; and an IFFT processing part configured to convert said interleave-processed data to time domain signals, wherein said interleaver generates and outputs N data points to the IFFT processing part from Q data points inputted to the interleaver from the FFT processing part, N being greater than Q, wherein the interleaver comprises an interleaver memory having Q rows and N/Q columns, wherein the interleaver is configured to write Q data points received from said FFT processing part into a column of the interleaver memory, the data points of any column being associated with only one user, and wherein the interleaver is configured to read Q×N/Q data points ordered by row from the interleaver memory to the IFFT processing part.