Ericsson Mobility Report provides insight into the future of 5G networks, including a forecast of 150 million 5G mobile subscriptions by 2021. South Korea, Japan, China and the U.S. are predicted to lead with the first, and fastest, 5G subscription uptake. 5G will connect new types of devices, enabling new use cases related to the Internet of Things (IoT); the transition will open up new industries and verticals to ICT transformation.