A method for physical random access channel, PRACH, signal generation by a user equipment, the method comprising - obtaining a first time-domain sequence (410a, 710a, 810a, 1010a) comprising a first set of time-domain samples, wherein the number of time-domain samples (N IFFT) in the first set of time-domain samples is less than the required number of samples needed for a digital-to-analogue converter, DAC, having a predetermined sampling rate, - generating a second time-domain sequence (440a, 740a, 840a, 1040a) comprising a second set of time-domain samples, the second set of time-domain samples comprising the first set of time-domain samples and interpolated time-domain samples (itds) inserted between the samples of the first set of time-domain samples, the number of time-domain samples (N TDPS) in the second set of time-domain samples matching a required number of samples matching the DAC sampling rate, - determining a first index (N IFFT -N CPDEC) of the first time-domain sequence (410a, 710a, 810a, 1010a), wherein the first index (N IFFT -N CPDEC) is configured to define a subset of the first set of time-domain samples (tds1_sub) formed by the time-domain samples between the first index (N IFFT -N CPDEC) and a second index (N IFFT) corresponding to the last time-domain sample of the first time-domain sequence (410a, 710a, 810, 1010a), wherein said subset (tds1_sub) formed by a number of time-domain samples (N CPDEC) for generation of a number of time-domain samples corresponding to a cyclic prefix, CP, of the second time-domain sequence (440a, 740a, 840a, 1040a) by insertion of interpolated time-domain samples (itds) between the samples of said subset (tds1_sub), - generating a CP for the second time-domain sequence (440a, 740a, 840a, 1040a) wherein the CP is formed by the determined subset of time-domain samples (tds1_sub) and interpolated time-domain samples (itds) inserted between the samples of the determined subset (tds1_sub), the number of time-domain samples in the CP formed by a number of samples needed for matching the required number of samples needed for the DAC sampling rate, and - providing the second time-domain sequence (440a, 740a, 840a, 1040a) to the DAC (74, 84). - obtaining a first time-domain sequence (410a, 710a, 810a, 1010a) comprising a first set of time-domain samples, wherein the number of time-domain samples (N IFFT) in the first set of time-domain samples is less than the required number of samples needed for a digital-to-analogue converter, DAC, having a predetermined sampling rate, - generating a second time-domain sequence (440a, 740a, 840a, 1040a) comprising a second set of time-domain samples, the second set of time-domain samples comprising the first set of time-domain samples and interpolated time-domain samples (itds) inserted between the samples of the first set of time-domain samples, the number of time-domain samples (N TDPS) in the second set of time-domain samples matching a required number of samples matching the DAC sampling rate, - determining a first index (N IFFT -N CPDEC) of the first time-domain sequence (410a, 710a, 810a, 1010a), wherein the first index (N IFFT -N CPDEC) is configured to define a subset of the first set of time-domain samples (tds1_sub) formed by the time-domain samples between the first index (N IFFT -N CPDEC) and a second index (N IFFT) corresponding to the last time-domain sample of the first time-domain sequence (410a, 710a, 810, 1010a), wherein said subset (tds1_sub) formed by a number of time-domain samples (N CPDEC) for generation of a number of time-domain samples corresponding to a cyclic prefix, CP, of the second time-domain sequence (440a, 740a, 840a, 1040a) by insertion of interpolated time-domain samples (itds) between the samples of said subset (tds1_sub), - generating a CP for the second time-domain sequence (440a, 740a, 840a, 1040a) wherein the CP is formed by the determined subset of time-domain samples (tds1_sub) and interpolated time-domain samples (itds) inserted between the samples of the determined subset (tds1_sub), the number of time-domain samples in the CP formed by a number of samples needed for matching the required number of samples needed for the DAC sampling rate, and - providing the second time-domain sequence (440a, 740a, 840a, 1040a) to the DAC (74, 84).