Abstract: The present invention uses site diversity reception and RAKE combining reception for the method for a CDMA communication mobile terminal to carry out a cell search to search for a base station with which to communicate. Even if the reception power levels of synchronization acquisition signals sent from a plurality of base stations are lower than a predetermined threshold, in the case where the power level of a signal combining those signals is equal to or greater than the predetermined threshold, the mobile terminal continues processing of requesting position registration to any one of the plurality of base stations and thereby improves communicability.

Abstract: In a CDMA receiver of the present invention in accordance with the IS-95 standard, at least one pilot filter is provided externally of a loop for synchronization tracking. Then filtering processing of a pilot signal and synchronization tracking processing is performed concurrently. Further using synchronization establishment information transmitted from a base station, a rate for the synchronization tracking is adaptively changed. Furthermore a time constant of the pilot filter independently provided is set using information from an AFC circuit. According to the present invention, it is possible to perform the filtering processing of the pilot signal assuredly, and to improve the synchronization tracking capability.

Abstract: The present invention uses site diversity reception and RAKE combining reception for the method for a CDMA communication mobile terminal to carry out a cell search to search for a base station with which to communicate. Even if the reception power levels of synchronization acquisition signals sent from a plurality of base stations are lower than a predetermined threshold, in the case where the power level of a signal combining those signals is equal to or greater than the predetermined threshold, the mobile terminal continues processing of requesting position registration to any one of the plurality of base stations and thereby improves communicability.