ANTENNA SYSTEM AND A METHOD FOR CONTROLLING SAID ANTENNA SYSTEM

摘要

An antenna system includes a base station, a plurality of antenna elements combined to an antenna, wherein the plurality of antenna elements of an individual antenna is connected to an antenna element mapper each connected to the base station via an antenna port. Also provided is a method for providing antenna elements of an antenna system with antenna signals wherein an antenna signal is distributed to multiple antenna elements and weighted with antenna element specific parameters. A configuration that can individually control more antenna elements than the number of antenna ports is provided by arranging the antenna elements in an antenna element array wherein all antenna elements are controlled individually; storing antenna port specific beam forming vectors in the antenna array; and every antenna element of the antenna element array is individually controlled by an antenna element specific vector element of the beam forming vectors.

主权项

1. An antenna system comprising
a base station; a plurality of antenna elements combined to an antennae, wherein the plurality of antenna elements of an individual antenna is connected to an antenna element mapper via antenna signal lines; each antenna element mapper connected to the base station via an antenna port; the number of antenna ports corresponds to the number of antenna element mappers, wherein the antenna elements are arranged in an antenna element array wherein all antenna elements are controlled individually; each antenna element mapper is dedicated to one antenna port independently of the number of antenna elements, wherein every antenna port forms an individual signal path for transferring specific beam pattern data from the base station to every antenna element array and further to every antenna element and vice versa; in transmitting direction:
each antenna element mapper comprises phase shifters corresponding to the number of antenna elements of the antenna element array; a combining unit is arranged for each antenna element; and each combining unit is provided with inputs each connected to every antenna element mapper and an output connected to a corresponding antenna element of the antenna element array; in receiving direction:
each antenna element mapper comprises phase shifters corresponding to the number of antenna elements of the antenna element array;a combining unit arranged for each antenna port; andeach combining unit is provided with inputs each connected to every antenna element mapper and an output connected to a corresponding antenna port.