A device controlling operation of a first base station of a wireless cellular telecommunication network including plural base stations and a server, the device being included in the first base station and comprising;
- means for setting the transmission power of the signals transferred by the first base station in the cell managed by the first base station at a first transmission power value;
- means for detecting a predetermined signal transferred by a mobile terminal of the wireless cellular telecommunication network;
- means for establishing a communication link with a server;
- means for obtaining from the server, information identifying each second base station that manages a cell that is neighbour of the cell managed by the first base station and that is transferring signals in the cell the second base station manages at a transmission power higher than the first transmission power value;
- means for establishing a communication link with each second base station;
- and
- means for setting the transmission power of the signals transferred by the first base station in the cell managed by the first base station at a second transmission power value higher than the first transmission power.