Until today, China's 5G was officially "non-commercial" but building rapidly. The country is set to pass the entire Western world before the previous Oct.1 launch date. See 90,000-150,000 Chinese 5G sites go live Octoberfor an earlier report.* Probably for political reasons, Minister Miao Wei just moved up the date. China Mobile, China Telecom, and China Unicom will build rapidly. They will be joined on the China Railway Towers by China's Radio and Television cable systems.
China Tower has 2.2 million sites and expects the carriers to upgrade most of them in the next few years. Towers and backhaul are in place. The upgrade will only require new radios, usually less than 15% of the cost.