Patent ID: 8731510

Claim:
A method for transmitting alarm messages in a radio communication network comprising a radio access network controlling mobile terminal communications located in radio cells, the method comprising: said radio access network receiving a first short message service-cell broadcast (SMS-CB) type alarm message from an alarm center, associated with a chosen alarm class of a chosen level, containing an alarm text message and addressed to mobile terminals located in at least one chosen cell; using a processing module in a radio network controller in said radio access network to immediately interrupt the transmission of at least one SMS-CB type message associated with a lower level class than said chosen alarm class of the first received SMS-CB message, to mobile terminals located in at least one chosen cell, and releasing resources for a broadcast of the first alarm message, broadcasting said first message to mobile terminals located in at least one chosen cell, using the radio access network, and sending an audio alarm signal and display an alarm text message on at least one mobile terminal that received said first message.