the pss of the serving cell may be generated and maintained in memory at the sampling rate of the incoming signal for example if the channel bandwidth of the current serving cell is 20 mhz the sampling rate may be 30 72 msps and the local replica of the pss is generated at the sampling rate of 30 72 msps in another example if the channel bandwidth of the current serving cell is 10 mhz the sampling rate may be 15 36 msps and the local replica of the pss is generated at the sampling rate of 15 36 msps in yet another example if the channel bandwidth of the current serving cell is 1 4 mhz the sampling rate may be 1 92 msps and the local replica of the pss is generated at the sampling rate of 1 92 msps similarly time domain local replicas of the sss 1 and sss 2 of the serving cell may be generated and maintained in memory at the sampling rate of the incoming signal according to another aspect of the disclosure the incoming signal is cross correlated with the local replica of the pss signal of the serving cell let the local replica of the pss signal be denoted by p n and the incoming signal be denoted by z n the cross correlation between these two signals is computed as follows r pss u2061 n uf603 1 k u2062 u2211 k 0 k 1 u2062 z u2061 n k u00b7 p u2061 k k uf604 2 where k is.