Question: In a 5G System (5GS), which entity interacts with the Charging Function (CHF) for converged charging related to Network Slice Management, based on specified chargeable events?
Option 1: User Equipment (UE) directly with CHF
Option 2: Service Producer (CTF) of provisioning MnS or the CEF with CHF using Nchf
Option 3: Network Slice Management Function (NSMF) alone with CHF
Option 4: Both the Service Producer (CTF) of provisioning MnS and the CEF, independently interacting with CHF
Explanation: In the context of 5G System's Network Slice Management charging, both the Service Producer (CTF), responsible for provisioning MnS, and the Charging Event Function (CEF) play roles in interacting with the Charging Function (CHF). These interactions are crucial for converged charging purposes, triggered by specific chargeable events related to Network Slice Management activities such as allocation, modification, and deallocation. This setup allows for comprehensive charging management, covering various scenarios involving MnS provisioning and consumption.