Converging 5G and ATSC 3.0 for Disaster Alerts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current disaster alert systems, such as Cell Broadcast Service (CBS) and Advanced Television Systems Committee (ATSC) 3.0, face limitations in transmitting detailed information and synchronizing wake-up functions with mobile terminals, particularly in mobile environments, necessitating a method to converge 5G and ATSC 3.0 networks for effective disaster alert broadcasting.
Innovation Solution
The method involves generating Advanced Emergency Alert (AEA) messages and CBS messages based on the same disaster alert, using a Non-3GPP InterWorking Function (N3IWF) to extract trigger information and multiplexing these messages for transmission through an ATSC 3.0 broadcast station, ensuring synchronization and efficient delivery to mobile terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If CBS protocol is used for disaster alert transmission, then location-based delivery and mobile terminal compatibility are improved, but the amount of information that can be transmitted is limited to text-based messages
Solution Approach 1:
The patent combines CBS and AEA protocols into a unified disaster alert transmission system. The CBS message structure is enhanced to include both text-based alert information and references to multimedia content (images, videos, audio) through AEA message components, allowing the system to transmit rich multimedia information while maintaining CBS's location-based delivery capabilities and mobile terminal compatibility.
2Quantity of substance
If ATSC 3.0 AEA protocol is used for disaster alert transmission, then multimedia information transmission capability is improved, but the ability to directly apply wake-up function and location information to mobile terminals is reduced
Solution Approach 1:
The patent introduces a gateway function that acts as an intermediary between the ATSC 3.0 broadcast network and mobile terminals. This gateway receives AEA messages containing multimedia information, extracts relevant trigger information, and formats the messages to be compatible with mobile terminal protocols, enabling ATSC 3.0's rich multimedia capabilities to be effectively delivered to mobile devices.
3Productivity
If separate transmission of CBS and AEA messages is used, then network simplicity is maintained, but transmission delay increases and information delivery efficiency is reduced
Solution Approach 1:
The patent merges CBS and AEA message transmission into a single integrated process. The enhanced CBS message structure allows simultaneous transmission of text-based alert information and multimedia content references through a unified broadcast signal, eliminating the need for separate transmission cycles and reducing overall transmission delay while improving information delivery efficiency.
Data Source
AI summary
Provided are a method and a system for broadcasting a disaster alert. The method of broadcasting a disaster alert includes: 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.