Downlink synchronization scheme robust to initial frequency in TD-SCDMA system
Yingmin Wang · Computer Engineering and Applications Journal · 2007
The problem is analyzed which lies in the existing downlink synchronization sequence(SYNC_DL) search method in TD-SCDMA system that the robustness is poor and the computational complexity is high.Aimed at the characteristics of the system frame structure,a kind of SYNC_DL search scheme based on the characteristic window realized in frequency domain is put forward.The simulation results reveal that this method can eliminate the influence of great initial carrier frequency error to the downlink synchronization performance.Furthermore,the computational complexity of this method is reduced.