A method arranges, in a mobile communication network, data transmission between user equipment and at least one base station including a central unit and at least one remote unit associated therewith. The data includes information data and control data from the central unit to the remote unit, or vice versa. The method includes allocating radio resources for the data to/from the remote unit, grouping the allocated radio resources, each group including at least one radio resource allocated for data to/from a respective remote unit, including in each group data indicating an association of the allocated radio resource of that group with the respective remote unit, including in each group allocation data indicating the allocated radio resources, among the at least one allocated radio resource, that have been allocated for the information data, and transmitting the groups in the frequency-domain between the central unit and the at least one remote unit.