An Enhanced Coarse Synchronization Scheme with Low Complexity for 3GPP LTE

A new coarse synchronization scheme for 3rd Generation Partnership Project Long Term Evolution (3GPP-LTE) is proposed. Existing coarse synchronization schemes based on central symmetry utilize either primary synchronization signal (PSS) and secondary synchronization signal (SSS) to fulfill initial timing synchronization. Though these two schemes perform well with relative low complexity, they can be further enhanced. Therefore a new scheme is proposed in this paper, which combines PSS with SSS and utilizes hierarchical computing to implement initial timing synchronization. Simulation results show that the new scheme can acquire higher detection accuracy rate without increasing computational complexity.