Receiving method and apparatus for OFDM-signals

摘要

The present invention relates to a transmission apparatus for transmitting OFDM data and synchronization signals, comprising modulation means (4) for modulating said OFDM data onto a plurality of subcarriers using an OFDM-modulation method, wherein said synchronization signals are modulated on every M-th subcarrier of said plurality of subcarriers in the frequency domain so as to generate a frequency domain sequence, wherein M is an integer and M ≥ 2, transformation means (5) for transforming said frequency domain sequence into a time domain sequence by using a scheme of Inverse Discrete Fourier Transformation so that said time domain sequence comprises IN-phase M-th identical waveforms and QUAD-phase M-th identical waveforms, wherein each of said QUAD-phase waveforms is different from the corresponding each of said IN-phase waveforms in the time domain; and transmitting means for transmitting said time domain sequence.;The present invention further relates to a corresponding transmission method.