A method for estimating a delay of a signal between a reference point and a reception point, said method being performed by a device and comprising: measuring both a quantity of the signal at the reference point and a quantity of the signal at the reception point at a plurality of time instants, thereby providing two sets of measurements (513, 512); and defining a plurality of time shifts, each expressed as a multiple of the time-distance between consecutive time instants, the method characterized in: quantizing the measurements by comparisons with one or more thresholds, thereby obtaining two sequences (517, 516) of quantized values of the quantity as measured at the reference point and the reception point respectively; for each of said time shifts, defining a plurality of pairs using the two sequences of quantized values, each pair comprising a quantized value of the quantity measured at the reference point at a first time instant and a quantized value of the quantity measured at the reception point at a second time instant, wherein the first and second time instants are separated by a respective defined time shift; and estimating the delay by determining at least one particular co-occurrence of the quantized values and determining, for each of said time-shifts, the relative frequency of the at least one particular co-occurrence within the pairs defined for the time-shift, thereby providing a joint probability of co-occurrences as a function of time shift, and by selecting the delay as the time-shift with the lowest relative frequency, wherein the at least one particular co-occurrence is determined as the pair of quantized values with the lowest probability of occurrence when there is no delay between the signal at the reference point and the signal at the reception point. measuring both a quantity of the signal at the reference point and a quantity of the signal at the reception point at a plurality of time instants, thereby providing two sets of measurements (513, 512); and defining a plurality of time shifts, each expressed as a multiple of the time-distance between consecutive time instants, the method characterized in: quantizing the measurements by comparisons with one or more thresholds, thereby obtaining two sequences (517, 516) of quantized values of the quantity as measured at the reference point and the reception point respectively; for each of said time shifts, defining a plurality of pairs using the two sequences of quantized values, each pair comprising a quantized value of the quantity measured at the reference point at a first time instant and a quantized value of the quantity measured at the reception point at a second time instant, wherein the first and second time instants are separated by a respective defined time shift; and estimating the delay by determining at least one particular co-occurrence of the quantized values and determining, for each of said time-shifts, the relative frequency of the at least one particular co-occurrence within the pairs defined for the time-shift, thereby providing a joint probability of co-occurrences as a function of time shift, and by selecting the delay as the time-shift with the lowest relative frequency, wherein the at least one particular co-occurrence is determined as the pair of quantized values with the lowest probability of occurrence when there is no delay between the signal at the reference point and the signal at the reception point. quantizing the measurements by comparisons with one or more thresholds, thereby obtaining two sequences (517, 516) of quantized values of the quantity as measured at the reference point and the reception point respectively; for each of said time shifts, defining a plurality of pairs using the two sequences of quantized values, each pair comprising a quantized value of the quantity measured at the reference point at a first time instant and a quantized value of the quantity measured at the reception point at a second time instant, wherein the first and second time instants are separated by a respective defined time shift; and estimating the delay by determining at least one particular co-occurrence of the quantized values and determining, for each of said time-shifts, the relative frequency of the at least one particular co-occurrence within the pairs defined for the time-shift, thereby providing a joint probability of co-occurrences as a function of time shift, and by selecting the delay as the time-shift with the lowest relative frequency, wherein the at least one particular co-occurrence is determined as the pair of quantized values with the lowest probability of occurrence when there is no delay between the signal at the reference point and the signal at the reception point.