1. A method of searching for propagation paths in a digital impulse response estimate of a channel relating to a radio system in order to use the paths in a radio channel estimation, the paths corresponding to the highest amplitude values in a digital impulse response estimate of a channel, comprising: dividing the impulse response estimate temporally into at least two subsignals; determining whether a distribution of the amplitude values of at least one subsignal is gaussian or non-gaussian; and searching for at least a highest amplitude value in each sub-signal, which is determined to be non-gaussian, for a radio channel to be used in a radio channel estimation.