Transceiver circuit and communications device

A transceiver circuit configured to simultaneously transmit and receive signals comprising:

• a receiver circuit configured to receive a signal, wherein the received signal comprises interference, and the received signal includes a sequence of symbols;
• an interference detection unit configured to determine a difference signal for each symbol wherein the difference signal is indicative of a difference between the received symbol and a quantization of the received symbol;
• an interference filter comprising a plurality of filter taps wherein each filter tap is associated with a different interference symbol of an interference signal wherein each interference symbol corresponds to interference which is expected to impact the received symbol and wherein each filter tap comprises:
• a filter coefficient generator configured to generate a filter coefficient for reducing the impact of the associated interference symbol on the received symbol wherein the filter coefficient is generated based on:
• the difference signal corresponding to the received symbol;
• and
• the interference symbol associated with the filter tap;
• and
• a filter signal generator configured to generate a filter signal based on the filter coefficient and the interference symbol associated with the received symbol and wherein the filter signal generator is further configured to output the filter signal for combination with the received symbol to reduce the interference, and
• wherein each filter signal generator is configured to switchably operate in one of:
• an activated mode, in which the filter signal generator outputs the filter signal for combination with the received symbol;
• and
• a deactivated mode in which the filter signal generator does not output the filter signal for combination with the symbol associated with the filter tap, and
• wherein the transceiver circuit further comprises a tap control unit configured to, for each filter tap, control whether the filter signal generator of the filter tap operates in the activated mode or the deactivated mode based on a comparison of the filter coefficient to a predetermined threshold value.