A method and radio communication system for the transmit useful information as a service to several user stations with at least one radio network controller, at least one base station and at least one user station. The radio network controller is connected to an access device in a core network. The useful information is provided to several users as a service, whereby the user stations of the users are informed before the transmission of the useful information. According to the invention, the notification for the user stations of the users at least partly comprises a request for a response and the transmission of the useful information at least partly occurs after receipt of the response.