A base station for a mobile communications system, a mobile communications system including the base station and a method of increasing base station capacity. Each base station antenna is coupled to a transmission line that may be connected to a triplexer. The triplexer separates uplink signals from a duplex signal on the transmission line. The uplink and downlink signals are both in two sub-bands that are separated by a third sub-band. The triplexer passes the uplink signal to a duplexer/combiner that forwards the uplink signal to a combiner. The duplexer/combiner and combiner each pass downlink signals in one of the sub-bands to the triplexer, which combines the passes to the duplex signal.
CROSS REFERENCE TO RELATED APPLICATION
The present invention is a continuation of U.S. Provisional Patent Application Ser. No. 60/588,277, entitled "System and Method for Adding Carriers to a Basestation" to Udo Licht, filed Jul. 15, 2004 and assigned to the assignee of the present invention.