DIGITALT RADIOTRANSMISSIONSSYSTEM MED VARIABEL VARIGHED AF TIDSINTERVALLERNE I TIDSDELINGS-MULTIPLEKSRAMMEN

A cellular digital radio transmission system wherein messages are transmitted from a base station to a plurality of mobile stations assigned to it by time-division multiplexing of time slots in respective TDM time frames, each mobile station being assigned by the base station to a respective time slot constituting a channel for receiving and transmitting information. In order to fully utilize the channel capacity of the TDM time frames for users having different bandwidth requirements the base station divides each TDM time frame into time slots of different durations, whereby a mobile station can be assigned by the base station to a time slot of a duration corresponding to the bandwidth required by such mobile station.