Ultra-Low Latency (ULL) Networks: The IEEE TSN and IETF DetNet Standards and Related 5G ULL Research

Many network applications, e. g. , industrial control, demand Ultra-Low Latency (ULL). However, traditional packet networks can only reduce the end-to-end to the order of tens of milliseconds. The IEEE 802. 1 Time Sensitive (TSN) standard and related research studies have sought to provide layer support for ULL networking, while the emerging IETF Deterministic (DetNet) standards seek to provide the complementary network layer support. This article provides an up-to-date comprehensive survey of the TSN and IETF DetNet standards and the related research studies. The survey these standards and research studies is organized according to the main of flow concept, flow synchronization, flow management, flow, and flow integrity. ULL networking mechanisms play a critical role in emerging fifth generation (5G) network access chain from wireless devices access, backhaul, and core networks. We survey the studies that target the support of ULL in 5G networks, with the main categories fronthaul, backhaul, and network management. Throughout, we identify the and limitations of the existing standards and research studies. This can thus serve as a basis for the development of standards enhancements future ULL research studies that address the identified pitfalls and.