vSMF Release Session Procedure

This section provides details about the release session procedure for vSMF.

vSMF Release Session Call Flow
vSMF Release Session Call Flow Description

Step

Description

1

The UE will initiate a release of the PDU session.

2

The vSMF receives the release request response from the hSMF.

3

The hSMF responds with a request to release the request in the form of a modify request with release indication set to true.

4

The vSMF releases the PFCP session.

5

The vSMF releases the charging session.

6

The vSMF responds to the AMF with a 200 OK response message.

7

The AMF responds with an N2 modification request.

8

The vSMF responds to the request with a 200 OK response message.

9 The AMF sends an N1 modification request to the vSMF.
10

The vSMF responds with a 200 OK message.

11

The vSMF responds to the hSMF PDU session modification request.

12

The vSMF forwards this notification to the AMF.

13

The hSMF sends an Sm context status notification that the release is complete.

14 The vSMF acknowledges the receipt of the notification.