In those applications where it is mission critical, where connectivity is unreliable, or where it is latency sensitive, the processing is done on the device. For example, autonomous vehicles do a lot of the processing within the vehicle itself. Another use case application could be on a mining excavator located in a remote area far from any connectivity. Another example are IoT applications on offshore oil platforms.

But that said, there are companies that are providing a network of edge servers. One company we spoke with is trying to deploy a network of edge servers in traffic cabinets (for autonomous vehicle applications). In this case, the connectivity method of choice will be cellular (5G). I believe they are running a pilot now out in Texas.