FIELD: mobile telecommunications.
SUBSTANCE: radio network controller periodically sends control messages, concerning adjustment of unidirectional channels of MBMS system, to user equipment units. Therefore, though user equipment units can not receive planned service of MBMS, it can adjust unidirectional channels of MBMS by receiving appropriate control message dispatched multiple times. Also, radio network controllers periodically provide information about currently engaged MBMS services on cell system basis, so that user equipment unit can take a decision, whether requested service is offered by MBMS, and request information from radio network controller, which is necessary to adjust unidirectional MBMS channels for MBMS service, by means of individual signaling.
EFFECT: higher efficiency, no negative effect on working characteristics of system in mobile telecommunications system.
4 cl, 13 dwg
