Patent ID: 9596117
Date: 2017-03-14
CPC Classifications: H04L

Claim:
1. An orthogonal frequency division multiplex (OFDM) modulator comprising: a first circuit that acquires a plurality of complex data each of which is assigned to a dedicated subcarrier, and generates digital waveform data on the basis of said acquired plurality of complex data; a second circuit that acquires said digital waveform data generated by said first circuit, shifts frequency of said digital waveform data, and generates frequency-shifted digital waveform data; a third circuit that converts an acquired bit sequence into a plurality of multi-value symbol data; a fourth circuit that extracts a plurality of frequency spectrum data from said plurality of multi-value symbol data covered by said third circuit through discrete Fourier transform; and a fifth circuit that assigns the subcarrier determined in advance to said frequency spectrum data acquired from said fourth circuit to output the subcarrier assigned frequency spectrum data, wherein said first circuit acquires each of said subcarrier assigned frequency spectrum data outputted from said fifth circuit as said complex data, and generates said digital waveform data on the basis of the acquired subcarrier assigned frequency spectrum data.