Abstract: In a cellular communication system a first and a second set of antennas are arranged at an antenna site. First and second baseband processing blocks are coupled to the antennas of the first and second antennas respectively. To improve the connection to a terminal an antenna of the second set is coupled to the first baseband processing block in addition to the antennas of the first set. Communication with the terminal is performed via at least one antenna of the first and at least one antenna of the second set. The first and second set of antennas can belong to two different network operators. By applying this invention, the two network operators can share the antenna pool of the first and second set of antennas even if the antennas are the existing ones at the same top-roof or tower.