Pre-5G trials continue to mount up in arguably the world’s leading 5G country, South Korea, with the latest tests by SK Telecom and LG U+. The latter has worked with Huawei on what it claims to be the world’s largest-scale 5G test in a pre-commercial, rather than lab or showcase, environment. The trial took place in the Gangnam District of capital Seoul, using both 3.5 GHz and 28 GHz bands. This was part of the preparations for the planned launch of a 5G network for next year’s Winter Olympics. The trial helped to verify IPTV 4K video technology and other likely commercial 5G services, said LG U+, as well as testing dual connectivity and inter-cell handovers under continuous networking conditions.…