Patent ID: 8537881

Claim:
A method for detecting an offset signal of a transmission leakage signal in an RF transceiver, the method comprising: measuring, by the RF transceiver that is used to simultaneously transmit and receive an RF signal, a magnitude of a transmission leakage signal mixed into the received RF signal; setting maximum and minimum scopes on an I/Q vector phase-plane in which an offset vector exists by using the measured magnitude of the transmission leakage signal, the offset vector offsetting the transmission leakage signal; and determining a detection area in which the offset vector exists and detecting the offset vector in the determined detection area, wherein setting the maximum and minimum scopes comprises: setting a first circle whose size is smaller than the measured magnitude of the transmission leakage signal on the I/Q vector phase-plane in the minimum scope, and setting a second circle whose size is greater than the measured magnitude of the transmission leakage signal in the maximum scope.