A NON-SYNCHRONOUS SIGNAL RECEIVING METHOD AND APPARATUS IN OFDMA SYSTEM

摘要

The application discloses a non-synchronous signal receiving method and apparatus in OFDMA system. The method includes steps: a Fourier transform on the received first time domain signal is performed, and the corresponding frequency domain signal is obtained; the sub-carrier occupied by the band of non-synchronous signal to be received in the frequency domain signal is set zero, then inverse Fourier transform is performed, the second time domain signal is obtained, and the second time domain signal is subtracted from the first time domain signal; otherwise, the sub-carrier beyond the band of the non-synchronous signal to be received in frequency domain signal is set zero, then inverse Fourier transform is performed, and the time domain received signal corresponding to the band of the non-synchronous signal is obtained.