A method for estimating the transfer function of a transmission channel over which a pilot signal (P-CPICH) and a data signal (DPCH) are transmitted, said pilot signal being comprised of sets of known symbols each transmitted over a given time slot of the pilot signal (P-CPICH), and said data signal including dedicated pilot fields comprised of respective sets of known symbols each transmitted over a respective time slot of the data signal (DPCH), the method including the steps of: - obtaining (21, 22, 27; 24, 23, 25) first and second channel estimates from said pilot signal and said data signal, respectively, and - combining said first and second channel estimates to obtain final combined channel estimates, characterized in that: - said step of obtaining (21, 22, 27; 24, 23, 25) first and second channel estimates from said pilot signal and said data signal, respectively, includes the steps of: - obtaining (21, 22, 27; 24, 23, 25) said first and second channel estimates over a basic estimation reference time that represents the time basis on which the first and second channel estimates from said pilot signal and said data signal are mapped, and - interpolating said second channel estimates over said basic estimation reference time to produce a number of interpolated second channel estimates over said basic estimation reference time, said number of interpolated second channel estimates being derived from said data signal and being equal to the number of said first channel estimates derived from said pilot signal over said basic estimation reference time, and - said step of combining said first and second channel estimates to obtain final combined channel estimates includes the step of obtaining said final combined channel estimates as a weighted sum of said first channel estimates and said interpolated second channel estimates. - obtaining (21, 22, 27; 24, 23, 25) first and second channel estimates from said pilot signal and said data signal, respectively, and - combining said first and second channel estimates to obtain final combined channel estimates, - said step of obtaining (21, 22, 27; 24, 23, 25) first and second channel estimates from said pilot signal and said data signal, respectively, includes the steps of: - obtaining (21, 22, 27; 24, 23, 25) said first and second channel estimates over a basic estimation reference time that represents the time basis on which the first and second channel estimates from said pilot signal and said data signal are mapped, and - interpolating said second channel estimates over said basic estimation reference time to produce a number of interpolated second channel estimates over said basic estimation reference time, said number of interpolated second channel estimates being derived from said data signal and being equal to the number of said first channel estimates derived from said pilot signal over said basic estimation reference time, and - said step of combining said first and second channel estimates to obtain final combined channel estimates includes the step of obtaining said final combined channel estimates as a weighted sum of said first channel estimates and said interpolated second channel estimates. - obtaining (21, 22, 27; 24, 23, 25) said first and second channel estimates over a basic estimation reference time that represents the time basis on which the first and second channel estimates from said pilot signal and said data signal are mapped, and - interpolating said second channel estimates over said basic estimation reference time to produce a number of interpolated second channel estimates over said basic estimation reference time, said number of interpolated second channel estimates being derived from said data signal and being equal to the number of said first channel estimates derived from said pilot signal over said basic estimation reference time, and - said step of combining said first and second channel estimates to obtain final combined channel estimates includes the step of obtaining said final combined channel estimates as a weighted sum of said first channel estimates and said interpolated second channel estimates.