A method and wireless communication system for transmitting payload information as a service to a plurality of subscriber stations

Method for transmitting payload information in a radio communication system with at least one radio network controller, at least one base station and at least one subscriber station, wherein the at least one base station and the at least one subscriber station are interconnected via a radio communication interface, wherein the user information is made available as a service a plurality of subscribers, wherein the at least one base station and the radio network controller are components of a base station subsystem, wherein the radio network controller is connected to an access facility of a core network and the radio network controller and the subscriber station hold a service-specific key, which includes the usage authorization to the service, characterized, that, when a cell change to another radio cell which is assigned to a further radio network control device, the subscriber station registers with the further radio network control device using the service-specific key.