MOBILE COMMUNICATION SYSTEM

PURPOSE: To allow the system to have provision for localized use of traffic efficiently by allocating adaptively one frequency or over to a large base station and a small base station depending on traffic. CONSTITUTION: The system is provided with large base stations A, B forming large base zones ZA, ZB, small base stations BS11-BS31 forming small radio zones C1-C3 in the large base zones ZA, ZB, and mobile stations MS1-MS7 setting a radio channel among the large base stations A, B or the small base stations BS11-BS31 connected by frequencies f1-f3 through the selection of the frequencies f1-f3 allocated to the large base stations A, B or the small base stations BS11-BS31. Then the large base stations A, B and the small base stations BS11-BS31 are connected to one mobile communication network 20 by a stationary channel. Since the frequencies f1-f3 are allocated adpatively to the large base stations A, B and the small base stations BS11-BS31 depending on traffic, the system has provision for localized use of traffic efficiently.