Device and method for estimating interference and radiofrequency communication system

A method implemented by a computer for estimating interference on a radiofrequency system using a set of channels (CHi), said interference being caused by interferers of an interfering system using a set of transmission bands (TBi), each of said transmission bands extending on a plurality of contiguous channels of said set of channels,

• Wherein the method comprises:
• Determining a set Ω of all possible configurations of occupation or non-occupation of said set of transmission bands, defined as a set of possible vectors Zk=[Z1,k, . . . , Zi,k, . . . ZI,k] satisfying at a time instant k a non-overlapping condition of said radiofrequency system, said non-overlapping condition corresponding to the fact that only one interferer i, among a set of I possible interferers, can be active at a same time k on each channel of said set of channels and forming, with contiguous channels, a transmission band i,
• Obtaining measurements X1, . . . , Xk, . . . , XK of occupation of at least a part of said set of channels, at respective time instants k:
• 0<k≤K, where K defines a given observation time window,
• Performing probabilities calculations so as to determine, for each transmission band, an estimated activation rate i, on the basis of said measurements X1, . . . , Xk, . . . , XK, said estimated activation rate i corresponding to an occupation rate of a transmission band i by an interferer within said given observation time window.