Base station arrangements using a plurality of antenna elements with different polarizations

摘要

Base station arrangement (100) adapted to receive signals from a user station; adapted to be connected to or comprises a plurality of antenna elements (1, 1, 2, 2, . . . 4,) with antenna ports (11, . . . 11) and a signal processing unit (20). The base station (21) also comprises a signal pre-processing functional unit (30) to collect channel correlation information. It is adapted to establish if there is one or more distinguishing characteristics comprising different correlation properties of different configuration properties associated with the antenna elements. Antenna elements are then assigned to different groups based on said configuration properties, and the channel correlation information is used to generate weighting information which is applied to antenna ports connected to antenna elements to control the antenna ports connected to antenna elements to control the antenna element transmit power individually or groupwise.

主权项

1. A base station arrangement adapted to, over radio communication channels, receive signals from, and transmit signals to, a user station, and being adapted to be connected to, or comprises, an antenna part with a plurality of antenna elements with one antenna port for each antenna element, the base station arrangement comprising:
a processing unit to which the antenna ports are connected; a number of power amplifying units; a signal pre-processing functional unit that is adapted to collect channel correlation information from signals received from the user station over the antenna ports; and a detector adapted to detect if there are one or more distinguishing characteristics associated with channels associated with the antenna elements, a distinguishing characteristic comprising one or more distinguishing correlation properties and/or distinguishing configuration related properties, wherein the processing unit or the signal pre-processing functional unit is adapted to assign antenna elements to different groups based on the detected distinguishing correlation properties and/or the detected distinguishing configuration properties, the processing unit is adapted to use the collected channel correlation information to generate weighting information and to apply said weighting information to antenna elements to control the antenna element transmit power for transmission to the user station, such that transmit power can be set independently for said different groups, the base station arrangement is further adapted to be connected to or comprise an antenna part wherein second antenna elements are associated with at least one characteristic which is different from a corresponding characteristic of a first antenna element, said at least one distinguishing characteristic being the polarization, the first antenna elements having a first polarization and the second antenna elements having a second polarization different from said first polarization, and that said first and second antenna elements are assigned to different groups depending on the existence of the or a distinguishing characteristic independently of which the distinguishing characteristic is.