Patent ID: 8818286

Claim:
A wireless communication apparatus comprising: a communication unit configured to wirelessly communicate with another wireless communication apparatus using a selected one of a plurality of wireless channels obtained by dividing a predetermined frequency band; a detection unit configured to detect an electric field intensity of a wireless channel; and a control unit configured to detect electric field intensities of a plurality of only non-selected wireless channels using the detection unit and not to detect an electric field intensity of the selected one of the wireless channels using the detection unit, and configured to calculate an estimated value of the electric field intensity of the selected one of the wireless channels used by the communication unit based on the electric field intensities of only the non-selected wireless channels detected by the detection unit; wherein the control unit is configured to calculate an average value of electric field intensities of a predetermined number of wireless channels below and above the wireless channel used by the communication unit and to set the average value as the estimated value of the electric field intensity of the wireless channel used by the communication unit.