Improvement and Realization of Frame Synchronization Technology in TD-SCDMA Based on Station System
Zhang Chuan-da · Communications technology · 2007
In this paper,a method to realize the On-Air frame synchronization between two BSs is proposed. The main operation performed in the proposed frame synchronization procedure is the correlation between the received signal and the known synchronization sequences transmitted in the frame by each BS, respectively the SYNC code(SYNC_DL code) and the training sequence code(Midamble code). The correlation process is repeated on a chosen number N F of consecutive radio frames in order to obtain better synchronization performance. The method presented in these pages allows to have a higher reliability and accuracy with respect to the on-air synchronization methods described in the UTRAN standard for TDD-LCR [3], where the procedure is performed by using the correlation with one synchronization sequence only (i.e. SYNC code).