NPLI in Rx RAR Call Flow

This section describes the following call flow.

NPLI in Rx RAR Call Flow
NPLI in Rx RAR Call Flow Description

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 Authenticate-Authorize-Request (AAR) message to the PCF. The message contains Required-Access-Info AVP requesting the access network information required for the AF session.

4

If the NetLoc feature is enabled, then the PCF sends an SMPolicyControl_UpdateNotify request toward the SMF.

5

In response to the SMPolicyControl_UpdateNotify request, the SMF sends the access network information to the PCF.

6

The PCF sends the SMPolicyControl_Update request to the SMF.

7

The SMF sends the SMPolicyControl_Update request to the PCF.

8

After the establishing the Rx-session and the Required-Access-Info lookup, the PCF sends the Rx Re-Authorization Request message to the AF.

9

The AF sends the Rx Re-Authorization Request response containing the 3GPP-User-Location-Info AVP and access network information report to the PCF.

10

If the session terminates, the SMF sends a SMPolicyControl_Delete request to the PCF.

11

The PCF responds to SMF for the SMPolicyControl_Delete request.

12

The PCF sends the Abort-Session-Request message to the AF.

13

The AF responds with the Abort-Session-Answer to the PCF.

14

The AF sends the Session-Termination-Request to the PCF.

15

The PCF responds with the Session-Termination-Answer message to the AF.