Patent ID: 8588854

Claim:
A controlling station for one or more cells in a cellular telecommunications system, comprising a transmitter and an antenna arrangement with a first number of antennas, each of which is adapted to cover one of a number of adjacent cells, in which each antenna has a beamwidth such that the main beam extends by a certain amount into two cells which are immediately adjacent on each side of the cell which the antenna is adapted to cover, the controlling station configured to: transmit on a control channel on a first number of antennas which cover non-adjacent cells; measure the output power which is transmitted on the traffic channels on each of said first number of antennas; if the measured total traffic channel output power on any of said first number of antenna is above a first predefined threshold, transmission on the control channel is activated on a second number of antennas; measure the traffic channel output power on each of the antennas in the antenna arrangement; and if the measured traffic channel output power on an antenna is below a second predefined threshold and the traffic channel on the antennas of both adjacent cells is active, the control channel transmissions on that antenna are deactivated.