Feature Description
AMF marks the UE state as DE-REGISTERED when it receives Deregistration Request from any of the following:
-
UE
-
AMF CLI admin (Clear Subscribe Request)
-
IDT Timer expiry (implicit detach procedure)
AMF prepares the Deregister Accept (N1-Downlink message) towards the UE and waits for the Deregister Complete message from the UE. During this process AMF performs the following functions:
-
Checks the configured purge time value.
-
Unsubscribes the PCF for am-policy data.
-
Completes the UE Context Release Request towards N1.
AMF starts CDL purge timer and holds purging of subscribers data until the timer expires. When the purge timer expires AMF performs the following actions:
-
Pushes the CDL timer expiry notification on REST-EP.
-
Stops the purge timer.
-
Starts purging procedures such as Unsubscribe Or Deregister towards UDM.
Note |
|