Method and apparatus for processing of intermodulation products

An apparatus for reducing interference to a received signal in a wireless channel received in a wireless network by an incoming signal receiver, the interference comprising passive intermodulation (PIM) products of at least a first signal and a second signal, the apparatus comprising:

• at least one processor;
• and
• at least one memory including computer program code;
• the at least one memory and the computer program code being configured to, with the at least one processor, cause the apparatus to at least perform steps of:
• generating, on the basis of the first signal and the second signal, a plurality of equalized interference signals comprising simulated PIM products generated using a plurality of equalizer settings;
• correlating each of the equalized interference signals with the received signal to produce data representing a correlation for each equalized interference signal;
• selecting first equalizer settings from the plurality of equalizer settings in dependence on a comparison of the data representative of the correlations;
• and
• combining, with the received signal, an interference signal comprising simulated PIM products generated from the first signal and the second signal using the first equalizer settings.