Patent ID: 9088340
Filing Date: 2015-07-21
Classification: H03F,H04B,H04W

Abstract:
1. A wireless communication apparatus equipped with a plurality of wireless devices having different wireless communication systems using the same frequency band, the apparatus comprising: an attenuator that is provided in each of the wireless devices and that attenuates an input level of a reception signal; a monitoring unit that monitors communication states of the wireless devices; and a control unit that performs control to determine whether or not the input level of the reception signal of the wireless device to be controlled out of the plurality of wireless devices of the wireless communication systems will be excessive because of a wireless communication to be performed by the other wireless device other than the wireless device to be controlled, based on the communication states of the wireless devices monitored by the monitoring unit, and to attenuate the input level of the reception signal by operating the attenuator of the wireless device to be controlled when a determination is made that the input level of the reception signal will be excessive, wherein the control unit performs control to determine that when out of the plurality of wireless devices of the wireless communication systems, at least one of the other wireless devices other than the wireless device to be controlled is during communication connection while the wireless device to be controlled is during communication connection, the input level of the reception signal of the wireless device to be controlled will be excessive, and to attenuate the input level of the reception signal by operating the attenuator of the wireless device to be controlled, to determine that even when the other wireless device is not during communication connection, in a case where a master station of a wireless device that performs a wireless communication using the same wireless communication system as that of the other wireless device is detected and the input level of the signal received from the master station is equal to or higher than a predetermined threshold, the input level of the reception signal of the control target wireless device will be excessive, and to attenuate the input level of the reception signal by operating the attenuator of the wireless device to be controlled, and to determine that when no master station of the wireless device is detected, or when the reception level of the master station is lower than a predetermined threshold, the input level of the reception signal of the wireless device to be controlled will not be excessive, and to prevent the attenuation of the input level of the reception signal without operating the attenuator of the wireless device to be controlled.