Patent ID: 8831684

Claim:
A base transceiver station for a mobile communications network for communicating with a plurality of subscriber devices within a coverage area, comprising: an active antenna array, the active antenna array comprising a vertical tilt adaption arrangement adapted to electronically adjust a tilt angle of an antenna beam in dependence of beam tilting control data thereby dynamically change the coverage area served by the base transceiver station and reflect location of ones of the plurality of subscriber devices; a beam control device for evaluating the distance of the ones of the subscriber devices to the active antenna array and calculating from the distances the beam tilting control data, and wherein distance data that is used by the beam control device to evaluate the distance of the ones of the subscriber devices to the active antenna array is extracted from data which the base transceiver station is forwarding to other entities in the mobile communications network, wherein the beam control device is adapted to evaluate at least one of geo-location data received from the ones of the plurality of subscriber devices, round-trip delay data of signals to and from the ones of the plurality of subscriber devices, or positioning data received from the ones of the plurality of subscriber devices, and wherein the active antenna array is adapted to exchange payload signals and control signals with the base transceiver station in digital form.