A wireless communication apparatus comprising: a transmission unit configured to transmit a wireless signal; a reception unit configured to receive a wireless signal; a transmission power control unit configured to control a transmission power of the transmission unit; an interference suppression unit configured to instruct the transmission power control unit to change the transmission power to suppress interference to terminal stations within a receivable range of the wireless communication apparatus in accordance with a belonging condition of the terminal stations;and a signal detection capability control unit configured to control a signal detection capability of the reception unit, wherein the wireless communication apparatus and a first plurality of the terminal stations belong to a first network and a second plurality of the terminal stations belong to a second network, wherein data are not mutually exchanged between the first network and the second network and wherein the interference suppression unit is further configured to, in a first belonging condition, where one of the terminal stations estimated to be most distant within the receivable range belongs to the second network, decide that the wireless communication apparatus does not communicate with the one of the terminal stations, instruct the transmission power control unit to reduce the transmission power to an extent that a communication link is not reduced and instruct the signal detection capability control unit to control the signal detection capability of the reception unit in accordance with the reduced transmission power to communicate with one of the first plurality of the terminal stations belonging to the first network. a transmission unit configured to transmit a wireless signal; a reception unit configured to receive a wireless signal; a transmission power control unit configured to control a transmission power of the transmission unit; an interference suppression unit configured to instruct the transmission power control unit to change the transmission power to suppress interference to terminal stations within a receivable range of the wireless communication apparatus in accordance with a belonging condition of the terminal stations;and a signal detection capability control unit configured to control a signal detection capability of the reception unit, wherein the wireless communication apparatus and a first plurality of the terminal stations belong to a first network and a second plurality of the terminal stations belong to a second network, wherein data are not mutually exchanged between the first network and the second network and wherein the interference suppression unit is further configured to, in a first belonging condition, where one of the terminal stations estimated to be most distant within the receivable range belongs to the second network, decide that the wireless communication apparatus does not communicate with the one of the terminal stations, instruct the transmission power control unit to reduce the transmission power to an extent that a communication link is not reduced and instruct the signal detection capability control unit to control the signal detection capability of the reception unit in accordance with the reduced transmission power to communicate with one of the first plurality of the terminal stations belonging to the first network.