When will 5G be available and how will it expand?
5G service is already available in some areas in various countries. These early-generation 5G services are called 5G non-standalone (5G NSA).
This technology is a 5G radio that builds on existing 4G LTE network infrastructure. 5G NSA will be faster than 4G LTE.
But the high-speed, low-latency 5G technology the industry has focused on is 5G standalone (5G SA). It should start becoming available by 2020 and be commonly available by 2022.