NPLI in N5 Notify Call Flow
This section describes the NPLI in N5 Notify call flow.

Step |
Description |
---|---|
1 |
The SMF sends a SMPolicyControl_Ceate request to the PCF. |
2 |
The PCF responds to the SMPolicyControl_Create request. |
3 |
The AF sends an PolicyAuthorization_Create request to the PCF. The request contains the access network information required for the AF session. |
4 |
The PCF sends the PolicyAuthorization_Create response to the AF. |
5 |
If the NetLoc feature is enabled, then the PCF sends an SMPolicyControl_UpdateNotify request toward the SMF. |
6 |
In response to the SMPolicyControl_UpdateNotify request, the SMF sends the access network information to the PCF. |
7 |
The PCF sends the SMPolicyControl_Update request to the SMF. |
8 |
The SMF sends the SMPolicyControl_Update request to the PCF. |
9 |
After the establishing the N5 session and the required access information lookup, the PCF sends the PolicyAuthorization_Notify request to the AF containing access network information report with 3GPP user location, UE Timezone and serving network PLMN ID if available |
10 |
The AF sends the PolicyAuthorization_Notify response to the PCF. |
11 |
If the session terminates, the SMF sends a SMPolicyControl_Delete request to the PCF. |
12 |
The PCF responds to SMF for the SMPolicyControl_Delete request. |
13 |
The PCF sends the PolicyAuthorization_Notify (Terminate) request to the AF. |
14 |
The AF responds with the PolicyAuthorization_Notify response to the PCF. |
15 |
The AF sends the PolicyAuthorization_Delete request to the PCF. |
16 |
The PCF responds with the PolicyAuthorization_Delete response to the AF. |