MOBILE STATION WITH DOWN-LINK FRAME NUMBERING

摘要

In a mobile communication system which includes mobile switching centers (6 to 8) which have TDMA signals and time slot sharing and frequency channel sharing time divided CDMA signals and has a controlling function of allocating the signals on a time base and a frequenc y base and wherein mobile stations (15 to 33) are radio connected to radio base stations (11 to 31), connected to the mobile switching centers, by a multiple connection system and said mobile stations having a high speed data transmission function can be radio connected to the radio base stations also by high speed data channels, information of time slots in frames of down-links transmitted from two adjacent radio base stations to one mobile station is provided with serial numbers by the mobile switching centers to which the radio base stations are connected, and hand-over processing is performed based on the serial numbers.