Patent ID: 8681730

Claim:
A method of synchronizing with a base station by a mobile device, comprising: generating a sign-based first complex correlation reference sequence from a second complex correlation reference sequence, each of the sign-based first complex correlation reference sequence and the second complex correlation reference sequence including a plurality of complex coefficients that each have a real component and an imaginary component, the generating the sign-based first complex correlation reference sequence including: for components of the second complex correlation reference sequence having a positive value assigning a first value to corresponding components in the sign-based first complex correlation reference sequence; and for components of the second complex correlation reference sequence having a negative value, assigning a second value to corresponding components in the sign-based first complex correlation reference sequence; receiving a signal from the base station that includes a Primary Synchronization Signal (PSS); and correlating the PSS of the received signal with the sign-based first complex correlation reference sequence, wherein at least one of the above steps is performed by a processor.