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

Claim 5:
6. A system for broadcasting a disaster alert, the system comprising:
an Advance Emergency Alert (AEA) message application configured to generate an Advanced Emergency Alert Table (AEAT) message and an AEA message generated to include an NRT component corresponding to a multimedia file according to an AEA protocol;
a Non-3GPP InterWorking Function (N3IWF) configured to extract trigger information from a Cell Broadcast Service (CBS) message received from an Access and Mobility Management Function (AMF); and
an Advanced Television Systems Committee (ATSC) 3.0 core network configured to receive the AEA message from the AEA message application and transmit the AEA message to a mobile terminal through an ATSC 3.0 broadcast station according to the trigger information,
wherein:
the AEA message further includes a CBS-related header,
the ATSC 3.0 core network
determines whether the trigger information received from the N3IWF matches the CBS-related header by using a multiplexer; and
when it is determined that the trigger information received from the N3IWF matches the CBS-related header, the ATSC 3.0 core network multiplexes 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, the ATSC 3.0 core network temporarily stops until the trigger information received from the N3IWF matches the CBS-related header.