Patent ID: 11877222
Assignee: UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of broadcasting a disaster alert, the method comprising:
receiving an Advanced Emergency Alert Table (AEAT) message and an Advance Emergency Alert (AEA) message generated to include an NRT component corresponding to a multimedia file from an AEA message application according to an AEA protocol;
receiving trigger information extracted from a Cell Broadcast Service (CBS) message from a Non-3GPP InterWorking Function (N3IWF); and
transmitting the AEA message to a mobile terminal through an Advanced Television Systems Committee (ATSC) 3.0 broadcast station according to the trigger information,
wherein:
the AEA message further includes a CBS-related header, and
the method further includes: determining whether the trigger information received from the N3IWF matches the CBS-related header by using a multiplexer;
when it is determined that the trigger information received from the N3IWF matches the CBS-related header, multiplexing the AEAT message and the NRT component to the AEA message; and
when it is determined that the trigger information received from the N3IWF does not match the CBS-related header, temporarily stopping until the trigger information received from the N3IWF matches the CBS-related header.