D.2 Npcf_PolicyAuthorization Service

29.5143GPP5G SystemPolicy Authorization ServiceRelease 18Stage 3TS

D.2.1 Service Description

D.2.1.1 Overview

The overview defined in clause 4.1.1 applies with the exception that the UE is replaced by the 5G-RG and the W-AGF, which is acting as a UE towards the 5GC on behalf of the FN-RG.

D.2.1.2 Service Architecture

The service architecture defined in clause 4.1.2 applies.

D.2.1.3 Network Functions

D.2.1.3.1 Policy Control Function (PCF)

The PCF functionality defined in clause 4.1.3.1 shall apply with the following modifications for W-5GAN and for the Npcf_PolicyAuthorization service:

– The 5G-RG and the W-AGF, acting as a UE towards the 5GC on behalf of the FN-RG, replace the UE.

– The PCF provides Policy Authorization as described in this Annex.

D.2.1.3.2 NF Service Consumers

The NF service consumer functionality defined in clause 4.1.3.2 shall apply with the following exceptions for the traffic of a PDU session over wireline access:

– Indication that the QoS targets can no longer (or can again) be guaranteed does not apply.

– Invocation of Multimedia Priority Services does not apply in this release of the specification.

– Indication of PLMN change does not apply.

– Indication of TSN 5GS Bridge Information does not apply.

– Reporting RAN/NAS Release Cause over wireline does not apply.

– The Maximum Packet Loss Rate for UL and DL is not forwarded to the wireline access. CHEM feature does not apply.