The present disclosure relates to a method for physical random access channel, PRACH, signal generation. The method comprises obtaining (S10) a first time-domain sequence (1010a) comprising a first set of time-domain samples. The method also comprises generating (S20) a second time-domain sequence (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 inserted between the samples of the first set of time-domain samples, the number of time-domain samples in the second set of time-domain samples matching a required number of samples needed for a digital-to-analogue converter, DAC, having a predetermined sampling rate, and providing (S50) the second time-domain sequence to the DAC. The present disclosure also relates to corresponding systems, user equipment, interpolation circuitry, PRACH control modules and associated methods, and computer program products.