Nine parties will jointly begin what is described as Japan's first demonstration of remote-monitoring video transmission combining L4S for autonomous driving with network slicing in Shiojiri, Nagano Prefecture, on 2 November. The vehicle used will be TIER IV's autonomous EV bus “Minibus.”
In Shiojiri, Nagano Prefecture, the KDDI Group and 9 other parties will jointly conduct a technology demonstration from 2 November 2026 to stabilize the transmission of remote-monitoring video from autonomous vehicles. The operation combines L4S and network slicing, described as a first in Japan. The vehicle used will be TIER IV's autonomous EV bus “Minibus.”
The demonstration is intended to limit delays and disruptions in remote-monitoring video during periods of network congestion and minimize the impact on communications used by the general public. It will verify the stability and operating framework required for one-to-many operations, in which a single monitor supervises multiple vehicles simultaneously.
Technically, network slicing will separate communications used for remote monitoring, while L4S will detect signs of congestion and optimize congestion mitigation. The aim is to maintain real-time performance while limiting the impact on other communications.
The demonstration forms part of Shiojiri's efforts to implement autonomous driving in society and the Digital Agency's initiatives. Looking ahead to nationwide deployment, the parties aim to establish a communications model for autonomous driving.