a method is provided for beam shaping in a radio communication system having subscriber stations and a base station , and an antenna device with a number of antenna elements that emit a downlink signal weighted with a coefficient of an actual weighting vector to a subscriber station , the actual weighting vector being updated via feedback information from the subscriber station . the subscriber station estimates the direction of a control vector in an m - dimensional vector space using measurements of the downlink signals , it detects a deviation of the estimated direction from the direction of a reference control vector and transmits information representative of the deviation to the base station . the base station then adapts the weighting vector using the representative information .