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Content for  TS 28.201  Word version:  17.0.0

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4  Architecture considerationsp. 9

4.1  High-level descriptionp. 9

4.1.1  Network slice charging architecturep. 9

The architecture for network slice charging follows common architecture and concepts specified in TS 32.240.
The network slice charging shall support charging of network slice management specified in TS 28.202 and performance and analytics based charging in the present document.
The NWDAF is part of the architecture specified in TS 23.501 and the Figure 4.1.1-1 shows the Network Data Analytics Exposure architecture specified in TS 23.288.
Reproduction of 3GPP TS 28.201, Fig. 4.1.1-1: Network Data Analytics Exposure architecture
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The Figure 4.1.1-2 shows the management service which offers management capabilities, specified in TS 28.533, clause 4.
Reproduction of 3GPP TS 28.201, Fig. 4.1.1-2: Management Service
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4.2  Network slice performance and analytics charging architecturep. 9

4.2.1  High level network slice performance and analytics architecturep. 9

The scope of the present document is network slice performance and analytics charging, the details for other type of network slice charging are defined in TS 32.255 and TS 28.202.

4.2.2  Converged charging architecturep. 10

The architectural options for network slice performance and analytics converged charging are depicted in Figure 4.2.2-1.
Reproduction of 3GPP TS 28.201, Fig. 4.2.2-1: Network slice performance and analytics converged charging architecture
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The Charging Enablement Function (CEF):
  • subscribes to notifications by consuming management services or services exposed by other functions, for receiving required charging information from the services.
  • unsubscribes to notifications by consuming management services or services exposed by other functions, for cancelling the subscription to performance and analytics information.
  • determines the occurrence of chargeable events. When it determines that a chargeable event has occurred it then triggers charging by consuming the Nchf services.
Charging information addressed by the CEF in the present document, are related to performance and analytics for network slices.
The MnS producer is defined in TS 28.533: the MnS producer in the present document is the producer of performance MnS.
For network slice performance and analytics converged charging the CEF is a consumer of either one or both:
  • performance management service (MnS) for network slice exposed by the MnS Producer, specified in TS 28.532;
  • Network Data Analytics service (Nnwdaf) for network slice exposed by the Network Data Analytics Function (NWDAF), described in TS 23.288.
And the CEF is a consumer of:
  • charging (Nchf) service.
The general architecture components can be found in TS 32.240.
Ga is described in clause 5.2.4 and Bns in clause 5.2.5 of the present document, and Nchf is described in TS 32.290.
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