Content for TS 24.282 Word version: 18.7.0
16 Emergency Alert
16.1 General
16.2 On-network emergency alert
16.3 Off-network emergency alert
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16 Emergency Alert |R16| p. 365
16.1 General p. 365
16.2 On-network emergency alert p. 365
16.2.1 Client procedures p. 365
16.2.1.1 Emergency alert origination p. 365
16.2.1.2 Emergency alert cancellation p. 367
16.2.1.3 MCData client receives an MCData emergency alert or communication notification p. 368
16.2.1.4 MCData client receives notification of entry into or exit from a group geographic area |R17| p. 370
16.2.1.5 MCData client receives notification of entry into or exit from an emergency alert area |R17| p. 371
16.2.2 Participating MCData function procedures p. 371
16.2.2.1 Receipt of a SIP MESSAGE request for emergency notification from the served MCData client p. 371
16.2.2.2 Receipt of a SIP MESSAGE request for emergency notification for terminating MCData client p. 373
16.2.2.3 Receipt of a SIP MESSAGE request indicating successful delivery of emergency notification p. 374
16.2.3 Controlling MCData function procedures p. 374
16.3 Off-network emergency alert p. 379
16.3.1 General p. 379
16.3.2 Basic state machine p. 379
16.3.2.1 General p. 379
16.3.2.2 Emergency alert state machine p. 379
16.3.2.3 Emergency alert states p. 380
16.3.3 Procedures p. 380
16.3.3.1 Originating user sending emergency alert p. 380
16.3.3.2 Emergency alert retransmission p. 380
16.3.3.3 Terminating user receiving emergency alert p. 381
16.3.3.4 Terminating user receiving retransmitted emergency alert p. 381
16.3.3.5 Originating user cancels emergency alert p. 381
16.3.3.6 Terminating user receives GROUP EMERGENCY ALERT CANCEL message p. 382
16.3.3.7 Implicit emergency alert cancel p. 382
