PROCEDURE AND ARRANGEMENT TO MAKE REDUNDANCY FOR A RADIO COMMUNICATION SYSTEM
An arrangement to make transmission redundancy for a first radio communication system (1), for which a transmission connection (4) is arranged for communication between a first base station control unit (3) and a first base station (2), multiplexed with communication between a second base station control unit (7) and a second base station (6) in a second radio communication system (5). The base stations (2, 6) are at that located together in a base station site (8). A first supervisory unit (9) is connected to said first base station control unit (3), and is arranged to, depending on supervisory data from said second supervisory unit (10), selectively connect said first base station control unit (3) to said first base station (2), either via said transmission connection (4), or via a third base station (16) in said second radio communication system (5) to a second supervisory unit (10), connected to said first base station (2).