Default/Dedicated Bearer with s1u as page-ue Call Flow
This section describes Default/Dedicated Bearer with s1u as page-ue call flow.

Step |
Description |
---|---|
1, 2 |
SGW-UP sends Sx Session Report Req with type as ERIR to SGW service POD. |
3, 4 |
SGW service POD sends Sx Session Report Res to SGW-UPF. |
5, 6 |
PFCP-EP sends Sx Mod Req for all PDNs to SGW service POD. PFCP-EP sends Sx Session Modification Req to SGW-UP. |
7, 8 |
SGW service POD sends Downlink Data Notification Req to S11-GTP-EP. S11-GTP-EP forwards Downlink Data Notification to MME. |
9, 10 |
SGW-UP sends Sx session Modification Rsp to SGW service POD. |
11, 12, 13 |
MME sends Downlink Data Notification Rsp Success to S11-GTP-EP. S11-GTP-EP forwards Downlink Data Notification Rsp Success to SGW service POD. SGW service POD sends CDL update to CDL endpoint when S-T2 transaction gets completed. |