Default/Dedicated Bearer with s1u as page-ue Call Flow

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

Default/Dedicated Bearer with s1u as page-ue Call Flow
Default/Dedicated Bearer with s1u as page-ue Call Flow Description

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.