MOBILE COMMUNICATION SYSTEM

摘要

A mobile communication system 1 for relaying a packet communication between a macrocell base station 10 and a mobile device 30 comprises a femtocell base station 20 that executes a first radio communication with the macrocell base station 10 and that executes a second radio communication with the mobile device 30. The mobile communication system 1 selects at least one of first and second frequencies so that the first frequency used in the first radio communication is different from the second frequency used in the second radio communication. The present invention can achieve a mobile communication system that can prevent the interference between a backhaul frequency and an access frequency at the time of a startup of a mobile device, further prevent the interference with the access frequency at the time of a backhaul change after a connection or at the time of the instruction of an access frequency change, and further prevent a loop phenomenon that selects as a backhaul the access frequency emitted by the mobile device.