Non-UE Message Notification Call Flow

This section describes Non-UE Message Notification call flow.

Non-UE Message Notification Call Flow
Non-UE Message Notification Call Flow description

Step

Description

1

The gNB sends a Write Replace Warning Response or PWS Cancel Response to NGAP-EP.

2

The NGAP-EP generates a callback with n2InfoClass set to PWS-BCAL with the following conditions.

  • Subscription for notification for this event is available.

  • Serial number corresponds to a request originally send with sendRanResponse as True.

3

If the gNB sends a PWS Restart Indicator or a PWS Failure Indication, it reaches the NGAP-EP.

4

If there’s a subscription for notification of the PWS events, the NGAP-EP generates a callback with n2InfoClass set to PWS-RF.

5

The AMF service forwards the onN2InfoNotifyRequest to REST-EP.

6

The REST-EP sends the message to the peer node.

7

The peer node responds with a 204 OK.

8

The REST-EP forwards the onN2InfoNotifyResponse to the AMF.