Measurement method for end-to-end Time synchronization of wired and wireless TSN

Modern industrial systems require some important features such as clock synchronization, deterministic behavior, low latency, and well as high scalability, flexibility, and reliability. Time-sensitive networking (TSN) is the perfect candidate to meet these requirements since it is meant to seamlessly provide real-time performance both on wired and wireless networks. To achieve this, TSN deeply relies on the capability of synchronizing to a primary clock across the network. In this paper, we provide a measurement approach for end-to-end time synchronization in a wired and wireless heterogeneous TSN-capable network. The paper provides insight into a set of features available on commercial-grade TSN-ready devices, useful to measure time synchronization error with high accuracy and repeatability. Moreover, the paper also describes preliminary experimental results that validate the proposed measurement methodology.