Lecture Description:

Mobile networks towards 5G impose increasingly stringent requirement on high throughput, low packet jitter and low latency due to emerging time-sensitive applications. Ethernet-based mobile 
fronthaul is low-cost and flexible but lacking in determinism. We review and discuss the FPGA based options for time-sensitive networking based on Ethernet, and one additional FPGA based proprietary Packet Delay Variation Correction for Frame Preemption with Interspersed express traffic. The presentation will continue with an overview of an experimentally evaluate a mechanism for low 
and bounded delay Ethernet aggregation to eliminate packet delay variation (PDV) and minimize additional fixed delay on high priority fronthaul traffic. Zero PDV and very low fixed delay is achieved 
using frame preemption of low-priority traffic techniques. This allows longer transmission distances and simplifies the dimensioning of the fronthaul network and eventually necessary playout buffer size. For a 100Gbit/s Ethernet aggregated fronthaul stream, it leaves 99.8μs of a 100μs fronthaul delay budget to transmission delay and packet processing, and does neither limit the maximum Ethernet frame size for both traffic types and the priority mechanism for low-priority traffic.