Provided is an interference control method that, in the case where a
macro terminal does not exist close to the
femtocell terminal, improves the coverage performance and
bit rate of
femtocell terminals, and also prevent deterioration in the performance of
femtocell base stations, femtocell terminals, or
macro terminals. In this method, the
macro terminals (102, 103) will transmit, when the difference value between the RSRQs of the
femtocell base stations (104) and the RSRQ of a macro
base station (101) is greater than a prescribed threshold value, a request to start an interference control, the difference value, and identification information of the femtocell
base station (104), to the macro
base station (101). The macro base
station (101) will transmit, on the basis of the request, the difference value, and identification information, an interference-control start-up request signaling to the femtocell base
station (104) specified by the identification information. The femtocell base
station (104) will conduct interference control, on the basis of the interference-control start-up request signaling, to femtocell terminals (105) registered with the femtocell base station (104).