A communication control apparatus for cooperatively controlling radio communication in a macro cell served by a macro cell base station and a small cell served by a radio communication apparatus which is a small base station , comprising: a communication unit configured to communicate with the radio communication apparatus via a radio backhaul link connecting the macro base station and the small base station, said radio communication apparatus being connected to one or more terminals via an access link ; and a control unit configured to control use of radio backhaul link and access link and to adjust a power ratio between a reception signal and a transmission signal so that said ratio does not exceed a predetermined threshold, wherein said adjusting comprises: causing the macro cell base station to adjust its power on the radio backhaul link and/or causing the small cell base station to adjust its transmit power on the access link when the reception on the radio backhaul link and a transmission on the access link are executed on an identical channel simultaneously in the radio communication apparatus , and causing the small cell base station to adjust its power on the radio backhaul link and/or causing the one or more terminals to adjust its transmit power on the access link when the reception on the access link and the transmission on the radio backhaul link are executed on an identical channel simultaneously in the radio communication apparatus , wherein said adjustment of the power ratio is performed in order to support the radio communication apparatus in removing self-interference due to a sneak of the transmission signal from the reception signal. a communication unit configured to communicate with the radio communication apparatus via a radio backhaul link connecting the macro base station and the small base station, said radio communication apparatus being connected to one or more terminals via an access link ; and a control unit configured to control use of radio backhaul link and access link and to adjust a power ratio between a reception signal and a transmission signal so that said ratio does not exceed a predetermined threshold, wherein said adjusting comprises: causing the macro cell base station to adjust its power on the radio backhaul link and/or causing the small cell base station to adjust its transmit power on the access link when the reception on the radio backhaul link and a transmission on the access link are executed on an identical channel simultaneously in the radio communication apparatus , and causing the small cell base station to adjust its power on the radio backhaul link and/or causing the one or more terminals to adjust its transmit power on the access link when the reception on the access link and the transmission on the radio backhaul link are executed on an identical channel simultaneously in the radio communication apparatus , causing the macro cell base station to adjust its power on the radio backhaul link and/or causing the small cell base station to adjust its transmit power on the access link when the reception on the radio backhaul link and a transmission on the access link are executed on an identical channel simultaneously in the radio communication apparatus , and causing the small cell base station to adjust its power on the radio backhaul link and/or causing the one or more terminals to adjust its transmit power on the access link when the reception on the access link and the transmission on the radio backhaul link are executed on an identical channel simultaneously in the radio communication apparatus , wherein said adjustment of the power ratio is performed in order to support the radio communication apparatus in removing self-interference due to a sneak of the transmission signal from the reception signal. <EOS>