The received signal is multiplied by the local sequence, and then the proposed scheme achieves the M-ary despread spectrum and OFDM demodulation at the same time.

• 在将基站接收信号分别与各用户原型扩频码镜像序列的OFDM调制结果相乘后，利用OFDM解调器可同时完成M元解扩和多载波解调。