Pset_UnitaryControlElementBaseStationController Properties that are applicable to _IfcUnitaryControlElement_ with the predefined type set to BASESTATIONCONTROLLER. IfcUnitaryControlElement/BASESTATIONCONTROLLER IfcUnitaryControlElement/BASESTATIONCONTROLLER NumberOfInterfaces Indicates the types of interfaces and their number in the device. NumberOfManagedBTSs Indicates the maximum number of base transceiver stations (BTSs) that can be handled by the device. NumberOfManagedCarriers Indicates how many carrier frequencies can be managed by the device.