D.1 General

32.2553GPP5G data connectivity domain chargingCharging managementRelease 17Stage 2Telecommunication managementTS

This clause describes how to realise Network Slice usage charging, when the Network Slice is identified by an S-NSSAI (Single Network Slice Selection Assistance Information), and the Network Slice usage is considered under 5G data connectivity by individual UEs.

The existing Nchf capabilities exposed by CHF to SMF for individual UE 5G data connectivity charging can be used for this purpose when the Mobile Network Operator (MNO) serving the UE is also actingas the Network Slice (NS) Tenant(s).

A given S-NSSAI can be Teneant specific or shared between multiple Tenants.

The MNO Converged Charging system encompasses both individual UEs and NS Tenants(s).

Roaming scenarios are out of scope of this Annex, therefore unless otherwise stated, references to clauses in this document refer to description applicable for non-roaming scenarios only.