BASE TRANSCEIVER STATION AND ASSOCIATED METHOD FOR COMMUNICATION BETWEEN BASE TRANSCEIVER STATION AND USER EQUIPMENTS

摘要

The invention relates to a base transceiver station (BTS) for communicating with a plurality of user equipments (UE1,UE2,UE3,UE4,UE5) divided in at least two groups, said base station comprises :
- an antenna element arrangement generating at least two shifted static beams (Bi,Bo) with respective down tilts for reaching the user equipments (UE1,UE2,UE3,UE4,UE5) and comprising a plurality of antenna elements (7) respectively connected to transceiver processing chains (9) for exchanging communication signals between the base transceiver station (BTS) and the user equipments (UE1,UE2,UE3,UE4,UE5), a processing unit (25) connected to said transceiver chains (9) and having means for performing at least two linear complex combinations of up-link digital signals between said antenna elements (7) and the base transceiver station for the same spectrum resources, and processing beam flows (Fi,Fo) respectively associated to said generated beams (Bi,Bo), with up-link signals received from user equipments (UE1,UE2,UE3,UE4,UE5),
- means for receiving said up-link signals and for selecting per user equipment the appropriate beam based on the quality of said up-link signals in the beam flows (Fi,Fo). The invention also relates to an associated method for communication between said base station and user equipments.