Abstract: An ICS repeater usable in a wireless network and, more specifically, a method for effectively canceling only an interference signal by selectively using an autocorrelation canceller in an ICS repeater are described. According to one aspect, a method for canceling interference performed by a 5G ICS repeater may comprise obtaining a first error signal by removing a first predicted feedback signal from a first original signal received through a reception antenna; generating a first delay signal by delaying the first error signal; determining whether the first original signal is a null signal based on magnitude information of the first error signal; determining a first reference signal based on the first delay signal according to a determination result of whether the first original signal is a null signal; and generating a second predicted feedback signal based on the first reference signal.

Abstract: An ICS repeater usable in a wireless network and, more specifically, a method for effectively canceling only an interference signal by selectively using an autocorrelation canceller in an ICS repeater are described. According to one aspect, a method for canceling interference performed by a 5G ICS repeater may comprise obtaining a first error signal by removing a first predicted feedback signal from a first original signal received through a reception antenna; generating a first delay signal by delaying the first error signal; determining whether the first original signal is a null signal based on magnitude information of the first error signal; determining a first reference signal based on the first delay signal according to a determination result of whether the first original signal is a null signal; and generating a second predicted feedback signal based on the first reference signal.