Private 5G and Network Slicing for Differentiated Services: Exploring How Network Slicing Within Private 5G Networks Can Enable Enterprises to Offer Different Quality of Service Levels for Various Applications and Use Cases

Rahul Bangera, Ellicott City, MD, USA.

Email: rahulmbangera@gmail.com

 Abstract— The deployment of Private 5G networks represents a fundamental shift in enterprise connectivity, moving from best-effort models to deterministic, service-oriented architectures. At the core of this transition is network slicing, a technology enabled by Software-Defined Networking (SDN) and Network Functions Virtualization (NFV), which permits the logical division of a single physical infrastructure into multiple virtual networks with varying Quality of Service (QoS) levels. This paper provides a comprehensive analysis of network slicing within the 3GPP Non-Public Networks (NPN) framework. It contrasts the architectural differences between Standalone NPN (SNPN) and Public Network Integrated NPN (PNI-NPN) and examines their effects on slice isolation and resource management. Additionally, the paper investigates specific mechanisms for QoS enforcement in the Radio Access Network (RAN) and Core Network, including Resource Block (RB) allocation and Uplink Classifiers (UL CL). By exploring use cases such as Industrial IoT (IIoT) and remote telesurgery, it illustrates how slicing meets the demanding requirements of Ultra-Reliable Low-Latency Communication (URLLC) while supporting Enhanced Mobile Broadband (eMBB). Finally, the paper discusses security challenges associated with multi-tenant slicing and proposes mitigation strategies to address side-channel attacks and maintain strong isolation.

Keywords: Private 5G, Network Slicing, QoS, URLLC, SNPN, PNI-NPN, Industrial IoT, 5G Architecture, SDN, NFV.