Interference canceller and method for cancelling interference

An interference cancellation method performed by a network device, the method for generating a cancellation signal for reducing cross port alien near-end (XPAN) crosstalk of a reception signal received by a receiver of the network device, and comprising:

• oversampling an XPAN transmission signal originated from a transmitter of the network device and thereby generating an oversampled signal having a frequency higher than a frequency of a reception clock of the receiver;
• calculating a clock difference between a transmission clock of the transmitter and the reception clock of the receiver;
• processing the oversampled signal according to the clock difference and thereby generating a conversion signal having a frequency lower than the frequency of the oversampled signal and equal to the frequency of the reception clock;
• and
• using a filter to generate the cancellation signal according to the conversion signal and to determine at least one coefficient of the filter according to an error signal dependent on a difference between the XPAN crosstalk of the reception signal and the cancellation signal.