Control method of wireless device and wireless module thereof

The present invention provides a wireless module applied to a wireless device, wherein the wireless module comprises a receiver, a transmitter and a control circuit. The receiver is configured to receive a receiving signal from an electronic device external to the wireless device, the transmitter is configured to transmit a transmitting signal, and the control circuit is configured to control a gain of the receiver and controlling a gain of the transmitter. In the operations of the wireless module, the controller refers to transmitter time information and a gain of a transmitter within another wireless module to determine an upper limit of the gain of the receiver, and/or the controller refers to receiver time information and a gain of a receiver within the another wireless module to determine an upper limit of the gain of the transmitter.