3 Definitions and abbreviations
22.2683GPPPublic Warning System (PWS) requirementsRelease 18TS
3.1 Definitions
For the purposes of the present document, the terms and definitions given in TR 21.905 [5] and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905 [5].
Commercial Mobile Alert System (aka, Wireless Emergency Alert): Public Warning System that delivers Warning Notifications provided by Warning Notification Providers to CMAS capable PWS-UEs. CMAS defines the following classes of Warning Notifications: Presidential, Imminent Threat, Public Safety, Child Abduction Emergency, and State/Local WEA Test.
Earthquake and Tsunami Warning System: Public Warning System that delivers Warning Notifications specific to Earthquake and Tsunami provided by Warning Notification Providers to the UEs which have the capability of receiving Primary and Secondary Warning Notifications within Notification Areas through the 3GPP network
Notification Area: area where Warning Notifications are broadcast. This is an area that closely approximates the geographical information provided by the Warning Notification Provider
PWS-UE: User Equipment (UE) which has the capability of receiving Warning Notifications within Notification Areas through the 3GPP network and conforms to the behaviour specific to the PWS service such as dedicated alerting indication and display of the Warning Notification upon reception
ePWS-UE: User Equipment (UE) that supports the ePWS functionality
3.2 Abbreviations
For the purposes of the present document, the abbreviations given in TR 21.905 [5] and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905 [5]
CMAS Commercial Mobile Alert System
EOC Emergency Operations Center
ETWS Earthquake and Tsunami Warning System
KPAS Korean Public Alert System
PWS Public Warning System
WEA Wireless Emergency Alert
ePWS enhancements of Public Warning System