Reactivity Report Call Flow

This section describes the Reactivity Report call flow.

Reactivity Report Call Flow
Reactivity Report Call Flow Description

Step

Description

1

The MME and the SGW-SVC process the initial attach request.

2

The Protocol-SXA and the SGW-UPF perform the user inactivity exchange in the Sx Session Establishment Request.

3

If the inactivity is observed in PDN-1, the SGW-UPF sends the Sx_Session_Report_Request with type User Plane Inactivity Report to the Protocol-SXA.

4

The Protocol-SXA sends the Sx_Session_Report_Request to the SGW-SVC.

5

The SGW-SVC sends the Sx_Session_Report_Response to the Protocol-SXA.

6

The Protocol-SXA forwards the Sx_Session_Report_Response to the SGW-UPF.

7

The PGW-UPF sends the data for the EBI-6 (in PDN-1) to the SGW-UPF.

8

The SGW-UPF sends the Sx_Session_Report_Request with IE Report-Type = User Plane Re-Activity Report to the Protocol-SXA.

9

The Protocol-SXA sends the Sx_Session_Report_Request with IE Report-Type = User Plane Re-Activity Report to the SGW-SVC.

10

The SGW-SVC responds with the Sx_Session_Report_Response to the Protocol-SXA.

11

The Protocol-SXA sends the Sx_Session_Report_Response to the SGW-UPF.

After receiving the Sx_Session_Report_Response on the control plane, SGW-SVC clears the Inactivity Report Flag for the PDN.