Call Flow

Step |
Description |
---|---|
1 |
AMF requests the SMF to activate the user plane connection of the PDU session by sending a POST request with the following information:
|
2 |
SMF starts activating the N3 tunnel of the PDU session after receiving the request. SMF returns a 200 OK response including the following information:
|
3 |
AMF requests the SMF by sending POST request, with the following information:
|
4 |
SMF initiates PFCP session modification procedure towards UPF with down link FAR updated with following options:
|
5 |
SMF sets the upCnxState attribute to ACTIVATED for the PDU session after receiving successful response from UPF node. |
6 |
SMF initiates 200 OK response including the upCnxState attribute set to ACTIVATED towards AMF. |