Method for receiving the method and the synchro and the OFDM symbol for precise OFDM symbol synchronization/receiver

摘要

As for precise OFDM symbol synchronization method, it exists in OFDM symbol being the step which presumes channel impulse response (CIR) from the specified pilot which is received, the above-mentioned specified pilot, at the frequency interval where n corresponds to carrier frequency is arranged inside OFDM symbol, integer where) those positions from one OFDM symbol k just carrier frequency are shifted to the next OFDM symbol, the above-mentioned specified pilot, being transmitted at the same frequency with that, are brought every m OFDM symbols, therefore m*k=n (m, as for n and k are larger than as many as 1The step (36) which becomes and, following to the position of one which is in the midst of channel impulse responding which is presumed output peak at least, fine is adjusted the step (60) which and, to include the position of the time domain - frequency domain window which is used in order to receive OFDM symbol, during the above-mentioned presumption channel impulse responding when channel impulse response replica exists, position of the correlation output peak where just the multiple formula (i) is alienated in order at least to discover the position of one which is used for fine control output peak, to be used, as for T _u from duration of irregularity of OFDM symbol guard (guard) it is something which deducts interval.