The potential for Layer 4 Switching (L4S) at the transport level, above the network to reduce latency for time critical applications delivered over mobile services, has been demonstrated in a trial just completed by Verizon and Ericsson. The pair claimed this demonstrated L4S could help ensure consistently low end-to-end delays for a variety of time sensitive interactive applications, especially AR/VR (Augmented Reality/Virtual Reality), drone operations, video conferencing, and V2X (Vehicle to Everything) communications in the automotive sector. All of these require sustained throughput at specified bit rates, while keeping within strict latency budgets. In this case, the L4S trial, conducted at Ericsson’s 5G innovation and co-creation lab in the US, tested an XR application accessed through a headset using the…