HANDOVER CONTROL METHOD AND MOBILE STATION DEVICE USING THE SAME

摘要

There are provided a handover control method having a short base station switching processing time in handover using a compression mode of W-CDMA (Wideband Code Division Multiple Access) mobile communication method and a mobile station device using the method. For handover to a base station in which a reference frame timing of a common channel transmitted according to a carrier frequency of different mobile station devices is unknown, a reference frame timing acquisition processing for acquiring the reference frame timing and a downstream physical channel synchronization establishment for establishing synchronization of the physical channel in the down stream line are performed in parallel. Moreover, for handover to a base station in which a reference frame timing of the common channel transmitted according to a carrier frequency of different mobile station devices is unknown, a communication control section (160) is provided for establishing synchronization of the physical channel in the downstream line if the timing in frame unit is known.