how do they cut the wifi connection once I move in or out of the train?

Question

Specifically how do they cut the train’s station wifi’s connectivity once I am in the train and the train’s wifi’s network offers me to connect inside the train?

In: Technology

Answer 1

Short answer wifi device prefers a better signal. the long answer is wifi Roaming. It’s how you can go to a big box store like Walmart and don’t notice a disconnect when you move across the store all the access points can hand off your device to another access point without any noticeable cut in service