Patent ID: 9451569
Filing Date: 2016-09-20
CPC Classification: H04J,H04W

Claim Text:
1. A method for detecting a received synchronization signal, the method comprising: receiving, at a receiver, a signal from a transmitter, wherein the signal includes the received synchronization signal; processing the received signal and a plurality of candidate synchronization signals to obtain a plurality of correlation signals, wherein the processing comprises multiplying a frequency transform of the received signal with a frequency transform of at least one of the plurality of candidate synchronization signals to obtain a frequency transform of at least one of the plurality of correlation signals; selecting, based at least in part on the plurality of correlation signals, one of the plurality of candidate synchronization signals wherein the selected candidate synchronization signal is correlated with the received synchronization signal; averaging each of the plurality of correlation signals over a number of consecutive frames to obtain averaged correlation signals; and detecting the received synchronization signal based at least in part on (i) the received signal, and (ii) a characteristic obtained from the correlation signal that is associated with the selected candidate synchronization signal.