NPLI in Rx STA Call Flow

This section describes the NPLI in Rx STA call flow.

NPLI in Rx STA Call Flow
NPLI in Rx STA Call Flow Description

Step

Description

1

The SMF sends a SMPolicyControl_Ceate request to the PCF.

2

The PCF responds with the SMPolicyControl_Create response to the SMF.

3

The AF sends an Authenticate-Authorize-Request message to the PCF.

The message contains Required-Access-Info AVP requesting the access network information required for the AF session.

4

The PCF responds with an AA-Answer message to the AF.

5

If the NetLoc feature is enabled, the PCF sends the SMPolicyControl_UpdateNotify request to the SMF.

6

The SMF responds with the SMPolicyControl_UpdateNotify message to the PCF. This message contains the access network information.

7

The SMF sends the SMPolicyControl_Delete request to the PCF.

8

The PCF responds to the SMF with the SMPolicyControl_Delete message.

9

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

10

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

11

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

12

The PCF responds with the Session-Termination-Answer message to the AF. This message contains the user location information.