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

Step |
Description |
---|---|
1 |
The MME sends the Create Session Request to the GTP-EP (S11). |
2 |
The GTP-EP (S11) forwards the Create Session Request to the SGW. |
3 |
The SGW-SVC sends the Session Idle Timer in IE = USER INACTIVITY as part of Sx Session Establishment Request to the Protocol. |
4 |
The SGW-U reads the Session Idle Timer from USER INACTIVITY and stores it at the CLP level. The UPF sends the Sx Session Report Request to the Protocol. |
5 |
The Protocol sends the Sx Session Report Request to the SGW-SVC. |
6 |
The SGW-SVC sends the Sx Session Report Response to the Protocol. |
7 |
The Protocol sends the Sx Session Report Response to the UPF. |
8 |
The SGW-SVC sends the Delete Session Request to the GTPC-EP. |
9 |
The GTPC-EP sends the Delete Session Request to the PGW. |
10 |
The SGW-SVC sends the Delete Bearer Request to the GTP-EP. |
11 |
The GTP-EP sends the Delete Bearer Request to the MME. |
12 |
The MME sends the Delete Bearer Response to the GTP-EP. |
13 |
The GTP-EP sends the Delete Bearer Response to the SGW-SVC. |
14 |
The PGW sends the Delete Session Response to the GTPC-EP. |
15 |
The GTPC-EP sends the EGTP Delete Session Response to the SGW-SVC. |
16 |
The SGW-SVC sends the Sx Session Deletion Request to the Protocol. |
17 |
The Protocol sends the Sx Session Deletion Request to the UPF. |
18 |
The UPF sends the Sx Session Deletion Response to the Protocol. |
19 |
The Protocol sends the Sx Session Deletion Response to the SGW-SVC. |