Patent ID: 8290002

Claim:
A coarse timing synchronization acquisition method in a mobile communication system, the synchronization acquisition method practiced with respect to a beginning time instant; the method comprising the following processing steps: A, starting from the beginning time instant of timing synchronization acquisition, iteratively calculating delay correlation accumulation (DCA) values at K samples, where K is a number of delay correlation accumulation values at each time slot; B, searching M time slots in each frame, in each time slot, a maximum DCA value defining a timing synchronization position estimate, M synchronization position estimates being obtained in each frame, and among these, one timing synchronization position estimate being selected as the candidate for the timing synchronization position of current frame, and deciding whether the candidate is reliable; C, after L frames are searched, deriving a predicted value of a timing synchronization position of a next frame from the L previous timing synchronization positions; when reliable timing synchronization positions consecutively approach the predicted values of the timing synchronization position of the next frame, taking the timing synchronization position of the last frame as an acquired timing synchronization position.