Method for deactivating at least one mobile station in a radio communication system, particularly in a picocell on board an aircraft in a GSM mobile radio network, where the radio communication system has a first network element, which forms a transmission/reception device for each mobile station in the radio cell, a second network element which is set up to control the first network element, and a device which is connected between the first network element and the second network element, wherein the device carries out the following steps: detection of a piece of identification information, directed at the at least one mobile station, which is transmitted from the second network element to the first network element, use of this identification information to deactivate the at least one mobile station when a deactivation signal is supplied to the device.