A Method of Fast Synchronization Based on PSS in TD-LTE Cell Search

During the first step of cell searching in Time Division Long Term Evolution (TD-LTE) system, the symbol timing synchronization is the most import part, it can not only enhance the performance of anti-frequency-offset but also reduce the complexity. In this paper, we propose a novel Primary Synchronous Signal (PSS) timing synchronization algorithm. Based on the fast convolution and Overlap-save, the proposed algorithm achieves the joint estimation of the symbol timing synchronization and coarse frequency offset in frequency domain. The theoretical analysis and simulation results prove that the proposed algorithm can not only reduce the complexity, but also improve the performance of anti-frequency-offset for PSS timing synchronization in TD-LTE system.