Gain adjustment method for wireless communication

A gain adjustment method for wireless communication, the gain adjustment method being carried out by a wireless transceiver and comprising:

• obtaining at least one transceiving parameter of a wireless connection partner;
• determining an adaptive power gain according to the at least one transceiving parameter, in which the adaptive power gain is workable for the wireless transceiver receiving packets from the wireless connection partner;
• having an idle power gain of a radio-frequency circuit of the wireless transceiver be the adaptive power gain for a period of time, or having the idle power gain be the adaptive power gain until the wireless transceiver carries out packet transmission operation or packet reception operation within the period of time, in which the idle power gain is for the wireless transceiver waiting for packet transmission or packet reception in the period of time;
• on condition that the packet transmission operation or the packet reception operation takes place within the period of time, performing automatic gain control over the radio-frequency circuit;
• and
• on condition that none of the packet transmission operation and the packet reception operation takes place within the period of time, having the idle power gain of the radio-frequency circuit be an initial power gain right after the period of time, in which the initial power gain is workable for the wireless transceiver receiving packets from different wireless devices including the wireless connection partner.