Abstract: A modular antenna system and a method for signal processing using the modular antenna system are provided to overcome the missing scalability of conventional antenna arrays and improve the overall antenna array performance as well as facilitate individually replacing defective or not reliably operating radio-units or radio-subunits in modular antenna array systems and provide a calibration procedure which can be adapted to a scalable antenna array. The modular antenna system includes a base station, and at least one radio-unit comprising at least two radio-subunits. Each radio-subunit includes a radio-module and an antenna-module. The radio-module includes a digital signal-processing unit, at least a transceiver, a front-end and a power amplifier. The radio-subunits provide an identical architecture and are modularly connected together via a connector interface and each radio-subunit has an own IQ-input and an own IQ-output.

Abstract: A modular antenna system and a method for signal processing using the modular antenna system are provided to overcome the missing scalability of conventional antenna arrays and improve the overall antenna array performance as well as facilitate individually replacing defective or not reliably operating radio-units or radio-subunits in modular antenna array systems and provide a calibration procedure which can be adapted to a scalable antenna array. The modular antenna system includes a base station, and at least one radio-unit comprising at least two radio-subunits. Each radio-subunit includes a radio-module and an antenna-module. The radio-module includes a digital signal-processing unit, at least a transceiver, a front-end and a power amplifier. The radio-subunits provide an identical architecture and are modularly connected together via a connector interface and each radio-subunit has an own IQ-input and an own IQ-output.

Abstract: 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.