name: CEF
full_form: Charging Enablement Function
context: The figure 6.1.4.3-1 describes the high-level charging procedure for Network slice converged charging based on CEF using Nchf_NSConvergedCharging service and NSACF service. Figure 6.1.4.3-1: CEF and use of NSACF service 0ch and 1: same as clause 6.1.2.5 (with CEF instead of NSACF) 2. Use of Nnsacf_SliceEventExposure_Subscribe/Unsubscribe service exposed by NSACF to subscribe to be notified on " Number of UEs" intermediate thresholds or "max number of UEs" per TS 23.502 [11] clause 4.15.3.2.10 flows and NSACF services. 3. Use of Nnsacf_SliceEventExposure_Notify received by CEF based on subscribed thresholds. 3ch-a to 3ch-d: same as steps 2ch-a to 2ch-d as clause 6.1.2.5 (with CEF instead of NSACF).
description: The Charging Enablement Function (CEF) is a network function responsible for enabling charging capabilities in the network, specifically for Network slice converged charging. It interacts with other network functions such as the Network Slice Application Control Function (NSACF) to provide charging-related services.
explanation: CEF is classified as a Network Function based on its role in enabling charging capabilities and interacting with other network functions like NSACF, as described in the context from 3GPP TS 32.847.
section_title: 6.1.4.3Flow description
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