Method for suppressing interference and arrangement for same, and radio communications receiver

An arrangement for interference suppression in a radio communications receiver, the arrangement comprising:

• a transformer configured to compute a transform of a received analog-to-digital converted radio signal;
• an interference estimator configured to compute metrics defining a concentration of an interference present for a transformed radio signal and a non-transformed radio signal;
• a selector coupled to the interference estimator configured to select for use a transform having metrics indicating a highest concentration of an interference in a transfer domain, or to select no transform if the metrics indicate the highest concentration of the interference for the non-transformed signal;
• an interference suppressor coupled to the selector configured to suppress a localized interference from the transformed radio signal by using weighting if the transform was selected, or to suppress the localized interference from the non-transformed radio signal by using weighting if no transform was selected;
• and
• an inverse transformer coupled to the interference suppressor configured to compute an inverse transform of the transformed radio signal if the transform was selected.

A radio communications receiver comprising:

• computing means for computing at least one transform of a received analog-to-digital converted radio signal;
• computing means for computing metrics defining a concentration of an interference present for a transformed radio signal and a non-transformed radio signal;
• selecting means for selecting for use a transform having metrics indicating a highest concentration of an interference in a transfer domain, or for selecting no transform if the metrics indicate the highest concentration of the interference for the non-transformed signal;
• suppressing means for suppressing a localized interference from the transformed radio signal by using weighting and for computing an inverse transform of the transformed radio signal if the transform was selected, or for suppressing the localized interference from the non-transformed radio signal by using weighting if no transform was selected;
• and
• detecting means for detecting and decoding an interference suppressed radio signal.