'If intelligent traffic management becomes a reality in future cities, more and more self-driving cars will appear on the road. To guarantee traffic safety, when a control command, braking for example, is sent to a car, the car must receive the command within 1 ms.

The latency of a 4G network cannot meet this requirement. With the latency of 4G network, a car driving at 100 km/h still moves 1.4 m from the time it finds a obstacle to the time when the braking command is executed.

Under the same condition, with the latency on a 5G network, the car will move just 2.8 cm, and this performance is comparable with the standard of an anti-lock braking system (ABS).'

From: https://www.huawei.com/minisite/5g/en/defining-5g.html