Synchronisation in a spread-spectrum multicarrier system

摘要

A mobile communication system (1) according to the present invention comprises base station (30) and mobile station (10). The base station (30) sends a pilot symbol sequence known to the mobile station (10), to the mobile station (10), using a plurality of carriers for downward channels, and performs communication with the mobile station (10) while multiplying the channels by scrambling codes. The mobile station (10) is provided with a peak detector (17) for calculating cross correlation allowing for a phase difference of the scrambling codes between pilot symbol sequences received from the base station (30), thereby detecting a radio frame boundary.