Method, base station and cellular telecommunication network for improving the quality of service

The invention relates to a method for improving the quality of service of a cellular telecommunication network wherein cells (101, 201) are irradiated by radio beams (102, 104, 106, 108, 110, 112; 202, 204, 206, 208, 210, 212) generated by base stations, each base station (100, 120) comprising means to irradiate at different time different areas (103, 105; 203, 205) of an associated cell by forming different radio beams, characterized in that it comprises the step of synchronizing a first sequence of radio beams (104, 106), generated by a first base station (100), with at least one other sequence of radio beams (204, 206), generated by at least one other base station (120), in order to limit the radio interferences between said first base station (100) and said at least one other base station (120)..