INTERFERENCE CANCELLATION REPEATER AND METHOD FOR USING FEEDFORWARD/FEEDBACK SIGNAL SEARCH AND FEEDBACK CANCELLATION WINDOW DIVISION

摘要

The present invention relates to a method of searching for feedforward signals and feedback signals and dividing a feedback cancellation window and an interference cancellation repeater using the method, in which only feedback signals other than feedforward signals are cancelled by an interference cancellation repeater, thus preventing the degradation in the quality of a source signal. A repeater for canceling interference attributable to a feedback signal according to the present invention includes a window setting unit (40) for searching an RF signal, which is received through a reception antenna and includes the intra-repeater feedback signal and an inter-repeater feedback signal, for a feedback signal by moving a feedback cancellation window, and dividing a feedback cancellation window (Xtot) on a basis of the feedback signal. A feedback signal cancellation unit (48) cancels the feedback signal from the received RF signal on a basis of the feedback cancellation window.