Abstract

Compared to wired networks, the integration of 5G and TSN introduces significant packet delays and packet delay variations making it challenging to compute 802.1Qbv schedules providing end-to-end latency and reliability guarantees. We provide an overview of strategies employing statistical knowledge of 5G channel conditions to allocate suitable 5G packet delay budgets (PDBs). We discuss the practical trade-off between choosing 5G PDBs too tightly, which may require an online reconfiguration of the schedule, and choosing 5G PDBs too conservatively, which may result in poor latency guarantees. We show that this work leads to a great step forward towards wireless-friendly TSN.

Authors:

• Simon Egger is a PhD student at the Institute of Parallel and Distributed Systems (IPVS) at University of Stuttgart, Germany. His current research interest covers formal quality of service guarantees in converged wired and wireless Time-Sensitive Networks.
• Dr. Frank Dürr is a senior researcher and lecturer at the Institute of Parallel and Distributed Systems (IPVS) at University of Stuttgart, Germany. He received both, his doctoral degree and diploma in computer science from University of Stuttgart. His research interests include software-defined and time-sensitive networking and mobile computing.
• Lucas Haug is a PhD student at the Institute of Parallel and Distributed Systems (IPVS) at University of Stuttgart, Germany. His research is focused on robust "wireless-friendly" scheduling for wireless Time-Sensitive Networks.
• Dr. Balázs Varga is an expert in multiservice networking at Ericsson Research. His current work area is 5G/6G related technologies and Packet Evolution studies to integrate Mobile, IP, Ethernet and MPLS networks (Fronthaul, Backhaul, Network Slicing). He represents Ericsson in standardization: IETF and IEEE 802.1, and contributes to 3GPP SA2 work. He received Ph.D. (1996) and M.Sc. (1993) degrees in telecommunications engineering at the Budapest University of Technology and Economics (BME).
• Dr. Marilet De Andrade works as master researcher at Ericsson Research, Sweden, where she contributes to research on 6G deterministic communications and 3GPP standardization in areas related to Industrial IoT, TSN, DetNet, and time synchronization. She holds a Ph.D. degree in computer science from Polytechnic University of Catalonia.
• Dr. Gourav Prateek Sharma is an Assistant Professor at Thapar Institute of Engineering and Technology, India. He was formerly a postdoctoral researcher at KTH, Sweden, and has earned his Ph.D. from Ghent University, Belgium, focusing on optimization algorithms in telecom and media networks.
• Dr. Joachim Sachs is a senior expert at Ericsson Research. He coordinates research on 5G and 6G mobile networks for Industrial IoT and vertical use cases, including cross-industry research collaborations. He has Ph.D. and diploma degrees from Technical University Berlin and RWTH Aachen University, respectively.
• János Harmatos is working as a master researcher at Ericsson. In recent years, he has investigated the cloudification aspects of TSN functionalities and system integration of industrial networks and edge computing involved in the related standardization work in 3GPP and 5G-ACIA. He is currently coordinating the SNS JU DETERMINISTIC6G project.
• Dr. James Gross is a professor for wireless networking at KTH Stockholm. He received his PhD from TU Berlin in 2006. His area of expertise is cellular networking for cyber-physical systems as well as machine learning in cellular networking scenarios.

The Speakers

• Simon Egger is a PhD student at the Institute of Parallel and Distributed Systems (IPVS) at University of Stuttgart, Germany. His current research interest covers formal quality of service guarantees in converged wired and wireless Time-Sensitive Networks.
• Dr. Frank Dürr is a senior researcher and lecturer at the Institute of Parallel and Distributed Systems (IPVS) at University of Stuttgart, Germany. He received both, his doctoral degree and diploma in computer science from University of Stuttgart. His research interests include software-defined and time-sensitive networking and mobile computing.