Reducing interference using interpolation/extrapolation

A receiver comprising:

• a processor;
• and
• a memory storing instructions that, when executed by the processor, cause the receiver to:
• receive a first signal forming part of a symbol, wherein the first signal is based on information;
• extract a differential signal by comparing the first signal with a second signal, wherein the second signal is based on the information on which the first signal is based;
• estimate a base frequency of the differential signal for the symbol;
• map the base frequency to a first time of the symbol;
• estimate frequencies at other times of the symbol using interpolation and/or extrapolation using base frequencies from at least one adjacent symbol, wherein the other times of the symbol are different than the first time of the symbol;
• reconstruct an interfering signal based on the estimated frequencies;
• and
• subtract the reconstructed interfering signal from a received signal for the symbol.

A computer program product for reducing interference, the computer program product comprising a non-transitory computer readable medium storing computer program code which, when run on a receiver, causes the receiver to:

• receive a first signal forming part of a symbol, wherein the first signal is based on information;
• extract a differential signal by comparing the first signal with a second signal, wherein the second signal is based on the information on which the first signal is based;
• estimate a base frequency of the differential signal for the symbol;
• map the base frequency to a first time of the symbol;
• estimate frequencies at other times of the symbol using interpolation and/or extrapolation using base frequencies from at least one adjacent symbol, wherein the other times of the symbol are different than the first time of the symbol;
• reconstruct an interfering signal based on the estimated frequencies;
• and
• subtract the reconstructed interfering signal from a received signal for the symbol.