A ORTHOGONAL FREQUENCY-TIME DIVISION MULTIPLEX TRANSMITTER, A RECEIVER AND METHODS

摘要

Techniques are provided to support orthogonal multiple carriers frequency-time division multiplex based on orthogonal frequency division multiplex and single carrier with frequency domain equalization in prior art. At a transmitter end, Serial to Parallel Transform and Inverse Fast Fourier Transform are performed for the input serial data stream, then data blocks after IFFT are multiplexed to be a OFTDM symbol data part in temporal sequence; and then a circulation prefix is added in its front-part to form a final OFTDM symbol. At a receiver end, the CP in the front-part of the OFTDM symbol down-converted to a baseband is removed, and after the operations of data de-multiplex, FFT and P/S corresponding to the transmitter end are performed, the original serial data stream is recovered. Except for including the advantage of said prior art, this disclosure can overcome their disadvantage, and a preferable tradeoff between the general performance and complexity of the system can be acquired.