a base station which can communicate with radio terminals on common and dedicated channels according to specific speeds , is provided with a band - pass which is available according to the use of the common and dedicated channels in order to receive data from a radio terminal on a high - speed uplink channel . an available band - pass is determined in the base station in order to receive the data from at least one radio terminal on at least one high - speed dedicated uplink channel . a first indication relating to the available band - pass is subsequently transmitted on a common downlink channel . at least one second indication relating to a percentage of the available band - pass which should not be exceeded by the radio terminal during a forthcoming transmission on said high - speed dedicated uplink channel is then transmitted independently for each radio terminal .