APPARATUS FOR OBTAINING MULTI-USER SIGNAL SYNCHRONIZATIONS IN CODE DIVISION MULTIPLE ACCESS SYSTEM AND METHOD THEREFOR

摘要

PURPOSE: An apparatus for obtaining multi-user signal synchronizations in a CDMA(Code Division Multiple Access) system is provided to use a single matched filter, so as to obtain the signal synchronizations of multi users having different PN(Pseudo Noise) seeds in a shortest time. CONSTITUTION: Many user parts(11) have different PN(Pseudo Noise) seeds. A matched filter(12) previously inputs the PN seeds from the user parts(11), and catches synchronizations of signals outputted from the user parts(11) within one frame. The matched filter(12) performs a matched filtering after catching the synchronizations. Many demodulators(13) input values matched-filtered by catching the synchronizations within the frame, and demodulate the values.