Spread spectrum synchronization apparatus

摘要

A present invention provides a spread spectrum communication apparatus that acquisition of synchronization of the pilot signal can be conducted in a short time with a high probability when a mobile station stays in the same radio area or in its vicinity. The spread spectrum communication apparatus includes a PN period holding counter (234) is provided in a search receiver (23), and phase information of the PN code is held in the counter (234) during the power off interval. At the time of operation of synchronization acquisition of a pilot signal conducted when power is turned on again, the operation of synchronization acquisition of the pilot signal is conducted with a preset search width around the phase derived on the basis of the above described held phase information.