METHOD OF CELL INITIAL SEARCH IN CDMA DIGITAL MOBILE TELECOMMUNICATION SYSTEM

摘要

The present invention relates to a method of cell initial search in CDMA digital mobile telecommunication system. The method includes: the terminal obtains the downlink synchronization with a base station after selecting the operating frequency; correcting the carrier departure between the base stations in digital demodulator. The downlink synchronization includes: judging a scope of downlink training sequence time slot (DWPTS) by using the method of training sequence power feature window value; in this scope, obtaining the exact location of terminal reception by finding out the correlation between the received data and the training sequences. The step of correcting carrier departure between terminals and base station includes: estimating carrier departure using software, and adjusting hardware using the judge feed method, recovering the carrier departure using the carrier departure correction method based on the combined detection.