CONTROL METHOD OF SEARCHING NEIGHBORING CELLS, MOBILE STATION, AND MOBILE COMMUNICATION SYSTEM

摘要

CONTROL METHOD OF SEARCHING NEIGHBORING CELLS MOBILE STATION, AND MOBILE COMMUNICATION SYSTEM A control method of searching for a neighboring cell of a mobile station communicating with a base station is provided in a direct sequence CDMA mobile communication system which transmits information by carrying out double modulation using a first spreading code group and a second spreading code. The first spreading code group includes spreading codes that have a same repetition period as an information symbol period and are used in common by the base stations, and the second spreading code has a repetition period longer than the information symbol period. The base stations are assigned different second spreading codes.