User group specific beam forming in a mobile network

摘要

The present disclosure relates to a radio system (1), a base band unit (20) and a method (100) for relaying radio signals in a cell (101) of a mobile network. The radio signals are relayed according to a service criterion (300). With the present invention the radio signals are grouped into a grouped payload signal (30-1, 30-2, . . . , 30-M) and a grouped receive signal (220-1, 220-2, . . . , 220-M) according to the service criterion (300). The grouped payload signal (30-1, . . . , 30-M) and the grouped receive signal (220-1, 220-2, . . . , 220-M) are associated with a beam forming vector (40-1, 40-2, . . . , 40-M). The grouping according to the present disclosure helps to improve a quality of service provided to an individual user of the mobile network. The associated beam forming vector (40-1, 40-2, . . . , 40-M) may be provided and adjusted at a digital radio interface DRI (200). Furthermore the present disclosure provides various computer programme product implementing the various aspects.

主权项

1. A radio system for relaying radio signals in a cell of a mobile network, the radio system comprising:
a base band unit for generating a plurality of grouped cellular radio signals from a cellular radio payload signal; a beam forming unit for providing a beam shape based on a plurality of beam forming vectors for yielding a beam shape characterized by a specific shape, an azimuth angle and an inclination angle identifying a direction of the beam shape; an active antenna system comprising a plurality of antenna elements for relaying the plurality of the grouped payload cellular radio signals according to one of the plurality of beam forming vectors associated with the grouped cellular radio payload signals; a transmit combining unit for combining individual ones of the plurality of the grouped cellular radio payload signals; and a trigger unit for providing a trigger signal to the transmit combining unit, the trigger signal comprising an indication of which one of the plurality of beam forming vectors is used, wherein the trigger unit and the trigger signal are used for a change of the combining in the transmit combining unit and a time slot corresponding to a transmission time interval as present within a communication protocol used for the trigger signal, wherein the grouped payload cellular radio signals are grouped according to a network-determined service criterion, wherein the associated beam forming vector comprises factors for at least one of the antenna elements; and wherein the factors are independently selectable.