FIELD: technology for transmitting information.
SUBSTANCE: radio-communication system contains client stations and at least one device for controlling access to radio communication between at least one base station and client stations through radio-communication interface, while useful information is provided to a group of client stations via radio communication channel, and client stations of the group are notified before transmission of useful information. In accordance to the invention, type of notification of at least one client station of group depends on at least one property of client station. Also, invention discloses a device for controlling access to radio communications for realization of method.
EFFECT: reduced cost of signaling in case of multi-address transmission services.
2 cl, 2 dwg
