The mobile terminal according to the invention comprises: means for receiving synchronization signals from a base station of a radiocommunication system; means for sending towards the base station requests for access to communication resources, at respective instants clamped with respect to instants of reception of said synchronization signals; means for determining a level of remoteness with respect to the base station; and means for advancing the instants of sending of the requests for access to communication resources, as a function of the level of remoteness determined by the means for determining a level of remoteness with respect to the base station.