A Study of Quality of Service (QoS) in Private 5G Networks for Smart Factori 4.0

This paper presents a case study on Quality of Service (QoS) in private 5G networks for Smart Factori 4.0. Specific applications including guaranteed bit rate (GBR) and non-guaranteed bit rate (NGBR) are considered in the simulation configuration for our proposed 5G standalone (5G-SA) network. We observe the performance of the above-mentioned services under single-frequency and double-frequency simulation conditions. The QoS of the proposed 5G-SA network topology will be analyzed in terms of latency, throughput, and signal-to-interference-plus-noise-ratio (SINR), and pathloss.  The guaranteed bit rate communication for voice service is considered appropriately suitable for smart factories that require real-time communication and instant alerts with some predefined threshold requirements for the achievable throughput and communication distances. For non-guaranteed bit rate communication which is specifically defined for low latency applications, the system can provide a consistent throughput and low mean delay across different distances. This benefit will enhance data communication for machine-to-machine communication, control systems, and real-time data monitoring applications in today’s smart factories.