Overview of 5G URLLC System and Security Aspects in 3GPP

With the emerging wide range of sophisticated 5G services and vertical business models, the mobile communication extends to include vehicles, high-speed trains, drones and industrial robots. Mission-critical applications in vertical industries have stringent service performance requirements in terms of latency, availability and reliability. Low latency seen as a critical deciding factor over service performance in some of the vertical industries, e.g., manufacturing or vehicular communications, thus the Ultra-Reliable Low Latency Communications (URLLC) is viewed as the enabling technology in the 5G system (5GS). This paper presents an overview of the 3GPP 5G system architectural and security enhancements to support URLLC services based on the recent standardization activities in 3GPP.