Reactivity Report Call Flow
This section describes the Reactivity Report call flow.

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. |