A radio system comprising one or more network parts and one or more terminals in radio connection to the network part, radio traffic on the radio connection between the network part and the terminal being transmitted in a frame, the network part being arranged to allocate downlink transmission power in at least two timeslots to a given terminal from timeslots determined by said frame. The network part of the radio system is arranged to produce the transmission power of a transmission to a terminal timeslot-specifically such that the power ratio of the transmission power of a radio transmission to the terminal in each timeslot and the interference power caused by transmissions to other terminals exceeds a threshold value preset on the power ratio in the timeslot. |