5G Network Slice

End-to-end flow for provisioning an enterprise dedicated 5G network slice on a 5G SA core, from slice requirements capture and S-NSSAI type selection through NSSF configuration, core NF instantiation (AMF/SMF/UPF), PCF QoS policy enforcement, RAN resource partitioning with dedicated PRBs, transport slice mapping via SRv6/FlexE, E2E validation, slice-aware billing via CHF, and enterprise self-service portal with NEF API exposure and cross-domain slice assurance.

5G network slicing creates logically isolated end-to-end networks on shared physical infrastructure. Each slice has its own S-NSSAI identity, dedicated or shared core NFs (AMF/SMF/UPF), RAN resource partitioning (PRBs), transport isolation (SRv6/FlexE), and independent QoS policies. All 5G core NFs communicate via the SBI (Service-Based Interface) — HTTP/2 REST APIs over a common service bus, replacing the point-to-point Diameter and GTP-C interfaces of 4G EPC. This means SOM orchestrates slice provisioning by calling standardised SBI endpoints on each NF, rather than configuring proprietary per-interface adapters. For enterprise customers, this enables guaranteed SLAs — dedicated bandwidth, ultra-low latency, and traffic isolation — without the cost of a private physical network.