For ensuring a low cost transport of signals in a radio network, in particular with a high density of radio access points, a method is proposed, where the signals are transported over wires between a base station and radio access points, comprising the steps of: determining the useful band of each wire (20); associating at least two wires (21); filtering the signal into sub-bands (22); transporting each sub-band over one or more wires of the associated wires (25); at the receiving end rebuilding the signal from the sub-bands (27). Further proposed are a radio head and a radio controller both adapted to the present method.