B.2 Npcf_SMPolicyControl Service

29.5123GPP5G SystemRelease 18Session Management Policy Control ServiceStage 3TS

B.2.1 Service Description

B.2.1.1 Overview

Session Management Policy Control Service applies to the cases where the SMF+PGW-C interacts with the PCF in the non-roaming scenario, the SMF+PGW-C interacts with the V-PCF in the local breakout roaming scenario and the H-SMF+H-PGW-C interacts with the H-PCF in the home-routed scenario.

B.2.1.2 Service Architecture

The Session Management Policy Control Service is provided by the PCF as shown in the SBI representation model in figure B.2.1.2-1 and in the reference point representation model in figure B.2.1.2.2.

In this scenario the NF Service Consumer is a combined SMF and PGW-C.

Figure B.2.1.2-1: Reference Architecture for the Npcf_SMPolicyControl Service for 5GC and
EPC interworking scenario; SBI representation

Figure B.2.1.2-2: Reference Architecture for the Npcf_SMPolicyControl Service or 5GC and
EPC interworking scenario; reference point representation

NOTE: The PCF represents the V-PCF in the local breakout scenario. The SMF+PGW-C represents the H-SMF+H-PGW-C and the PCF represents the H-PCF in the home routed scenario.