Human Interface Unit and wireless communication method of it

The invention discloses a human interface device and a wireless communication method thereof. The radio communication method of the human interface device, and a channel setting step of setting the occupied channels in the central office device and the wireless input device to send and receive data for setting the occupied channel through the emergency channel, the wireless input device is the occupied channel If the transmission of the operation data, and the parent station device via not the operation data is generated operation active phase, and the wireless input device for receiving the operation data on the occupied channel is such that the predetermined time has elapsed, the wireless input device and the parent station apparatus operates in the standby mode, and characterized by comprising a standby step to determine whether the interference of the occupied channel. Therefore, increasing the efficiency of the frequency band, it reduces the cost of production and size of the product. In addition, to set a new channel occupancy detects the crosstalk of the occupied channels gives to increase reliability and efficiency of wireless communication.