Patent ID: 8718159

Claim:
A method comprising: receiving, at a receiver, a received signal in time domain and obtaining a cyclic prefix (CP) correlation on the received signal, the CP correlation including spectral components associated with a plurality of possible cyclic prefix lengths; converting, in the receiver, the obtained CP correlation to frequency domain; distinguishing, in the receiver, spectral components associated with a first cyclic prefix length from spectral components associated with a second cyclic prefix length; calculating, in the receiver, a first metric based on the spectral components associated with the first cyclic prefix length; calculating, in the receiver, a second metric based on the spectral components associated with the second cyclic prefix length; setting, in the receiver, an order of cyclic prefix lengths based on a comparison of the first metric and the second metric with a threshold, the order including the first cyclic prefix length and the second cyclic prefix length; and completing, in the receiver, a synchronization process based on the order of the cyclic prefix lengths.