Patent ID: 7940866

Claim:
A correlation interval synchronization apparatus, comprising: correlation module for performing correlation operation on received data, wherein the received data comprises a plurality of frames, each of the frames including a null symbol, a phase reference symbol, and a plurality of regular symbols; peak search module for searching for a plurality of peaks in accordance with correlation value of the correlation module; peak interval determination module for acquiring a plurality of peak intervals in accordance with the peaks, and for determining a peak interval where a synchronization head position resides in accordance with length of the peak intervals; and synchronization head position identification module for identifying the synchronization head position in accordance with the peak interval where the synchronization head position resides; wherein, the plurality of peaks searched by the peak search module comprise peaks (Peak_n) of the regular symbols, forward peaks (Peak_f) at front end of the null symbols, and backward peaks (Peak_b) at rear end of the phase reference symbols, wherein length of the peak interval between the forward peak (Peak_f) and the backward peak (Peak_b) is distinct from the length of the peak interval between the regular symbols, thereby determining the synchronization head position resides in the peak interval between the forward peak (Peak_f) and the backward peak (Peak_b).