ALARM INFORMATION TRANSMISSION FOR SERVICES WITH BROADCASTING AND MULTICAST TRANSMISSION Russian patent published in 2008 - IPC H04Q7/38 

FIELD: information technology.

SUBSTANCE: base station transmits alarm information for each service in accordance with a schedule, which includes a recurrence interval and a modification interval. The warning information is transmitted in each recurrence interval, so as to provide for fast receipt of that information using a wireless device. Changes in the critical alarm information are allowed at the beginning of each modification interval, which is an integer multiple of the recurrence interval. Every time, when the critical alarm information for a given service changes in a given modification interval, a notice indicator for the service is established in the whole preceding modification interval so as to inform the wireless device on the change. Wireless devices can detect the notice indicator, established in the preceding modification interval, and can search new critical alarm information in the next modification interval.

EFFECT: provision for transmitting alarm information for services with broadcasting and multicast transmission.

44 cl, 12 dwg