Sh Interface Call Flow

This section describes the Sh Interface call flow.

Sh Interface Call Flow
Sh Interface Call Flow Description

Step

Description

1

The User Equipment (UE) sends a PDU Session Establishment request to the Access and Mobility Management (AMF) function.

2

The AMF creates the Namf_PDUSession_CreateSMConext_Request service and sends it to SMF.

3

The SMF creates and sends the Npcf_SMPolicyControl_CreateRequest[ContextData] service to H-PCF.

4

The PCF sends a request to the User Data Repository (UDR) through the Sh interface.

5

The Sh interface sends the UDA (Billing Plan) to the PCF.

6

The PCF responds with the Npcf_SMPolicyControl_Create service to the SMF.

7

The SMF sends the Npcf_SMPolicyControl_Update request to the PCF.

8

The PCF responds with the Npcf_SMPolocyControl_Update response to the SMF.

9

The UE sends the PDU Session Release request to SMF.

10

The SMF forwards the Npcf_SMPolicyContro_Delete request to the PCF.

11

The PCF sends the Npcf_SMPolicyControl_Delete response to SMF.