Telefonaktiebolaget LM Ericsson (publ)
DIGITAL, DISTRIBUTED, WIRE-FREE COMMUNICATION SYSTEM AND CONCENTRATOR

Abstract:

The invention relates to a digital, distributed, wire-free communication system having at least two base station antennas arranged adjacent to each other, which are designed as sector antennas having different but adjacent sector illumination, and a concentrator, which communicates with the sector antennas by means of a digital communication signal having antenna-side data streams respectively assigned separately to each sector antenna. The concentrator combines the received antenna-side data streams from the sector antennas into a number of network-side data streams, differing from the number of antenna-side data streams, by using a signal processing matrix operation, wherein at least one of the network-side data streams leaving the concentrator includes parts of at least two antenna-side data streams from at least two adjacent sector antennas. The invention also relates to a concentrator and a method for the joint signal processing of data streams from a plurality of base station antennas arranged adjacent to each other.