CONTENTS

Recommendation ITU-R BT.1774-3
Policy on Intellectual Property Right (IPR)
Annex 1  Public warning systems for broadcasting
 1 Introduction
 2 Outline of public warning systems for broadcasting
 3 Emergency warning system for analogue broadcasting
 4 Emergency warning system for digital broadcasting
Attachment 1  to Annex 1 (informative)  Examples of public warning systems for broadcasting
 1 Introduction
 2 Emergency Warning System
        2.1 EWS for analogue sound broadcasting
                  2.1.1 Overview
                  2.1.2 Operation of EWS
                  2.1.3 Specification and configuration of EWS signal
        2.2 Digital emergency warning system (digital EWS)
                  2.2.1 Technical specifications of digital EWS
                  2.2.2 Mobile reception
                  2.2.3 Automatic activation of handheld receivers by EWS signals
        2.3 Bibliography
 3 Emergency Alert System
        3.1 Specification for FM radio alarm broadcasting
        3.2 Automatic emergency alert service (AEAS) for terrestrial digital multimedia broadcasting (T-DMB)
                  3.2.1 AEAS message format
                  3.2.2 AEAS message segmentation
                  3.2.3 Delivery of AEAS message
 4 Broadcast interrupt public warning systems
        4.1 AFSK Signalling
        4.2 Common Alerting Protocol (CAP) signalling
        4.3 Accessible Emergency Information Signalling
        4.4 Bibliography
 5 ATSC 3.0 Advanced Emergency Information System
        5.1 Introduction and background
        5.2 ATSC 3.0 AEI Functions in Support of Public All-Hazards Warning
        5.3 ATSC 3.0 AEI operations
        5.4 Accessibility capabilities for the visually impaired
        5.5 Receiver configurations
        5.6 Bibliography
 6 Public Warning Systems for LTE-based 5G broadcast system
        6.1 Public Warning System in 3GPP networks
                  6.1.1 Overview
                  6.1.2 Earthquake and Tsunami Warning System
                  6.1.3 CMAS
                  6.1.4 EU-ALERT
                  6.1.5 Korean Public Alert System (KPAS)
        6.2 LTE-based 5G Broadcast System extended with Public Warning Systems
                  6.2.1 LTE-based 5G Broadcast System
                  6.2.2 Reference architecture for LTE-based 5G Broadcast System extended with PWS
                  6.2.3 Bibliography
Annex 2  Common emergency warning system control signal  for analogue sound broadcasting
 1 Introduction
 2 Audible baseband EWS control signal
        2.1 Start signal
        2.2 End signal
        2.3 Common fixed code
 3 Specification for analogue FM radio alarm broadcasting
Annex 3  Common emergency warning system control signal  for digital broadcasting
 1 Common Alerting Protocol (CAP) Signalling
 2 Structure of the CAP alert message
 3 References