Patent ID: 8224331

Claim:
A cell search method for a multiband radio communication system provided with a mobile station and a plurality of base stations, the method comprising the steps of: classifying base station information into a plurality of first categories on the basis of a cell size of each base station independently of frequency, the base station information being information on the base stations; classifying the base station information into a plurality of second categories on the basis of a radio-frequency band of each base station independently of cell size; associating movement speeds with the first categories independently of associating the movement speeds with the second categories; acquiring a movement speed of the mobile station; selecting at least one of the first categories and at least one of the second categories on the basis of the acquired movement speed independently of the base station selection and the associations respectively between the movement speeds and the first and second categories; creating a base station list on the basis of base station information which belongs to the selected first category and base station information which belongs to the selected second category, the base station list being to be notified to the mobile station; notifying the mobile station of the base station list; and causing the mobile station to perform a cell search on the basis of the notified base station list.