Patent ID: 7856208

Claim:
An interference control system within a wireless radio communication system, the interference control system comprising: two or more antenna elements having adjustable beam patterns in a substantial horizontal plane; two or more phase shift devices, each communicatively coupled to a respective antenna element and adapted to receive a first signal from the respective antenna element and adapted to provide the first signal with an amount of phase shift to a radio base station's receiving side; interference control means and tilt/bearing control means; beam pattern adjustment devices coupled to a respective antenna element and controlled by the tilt/bearing control means under control of the interference control means; the interference control means having inputs for receiving interference information from a radio base station controller and the first signal with an amount of phase shift from each phase shift device, and outputs to control the tilt/bearing control means and the phase shift devices, the interference control means being adapted to measure interference and adjust the bearing of the area of the overlap of beam patterns in a substantial horizontal plane of the at least two of the antenna elements depending on the interference measurements.