On August 17, a press conference called "Light Up Shenzhen, the City of 5G Wisdom" was held in Shenzhen. The mayor of Shenzhen announced: Shenzhen has achieved full coverage of 5G independent networking, and Shenzhen is the first to enter the 5G era. This means that the application of 5G, cloud, AI, Internet of Things, big data and other technologies will soon become popular. The widespread application of 5G, big data, Internet of Things and artificial intelligence technologies makes cities more "smart"! 1 "New Infrastructure"-Smart City In March, the Standing Committee of the Political Bureau of the CPC Central Committee held a meeting and proposed to speed up the construction of new infrastructure such as 5G networks and data centers; the two sessions were held, and the "new infrastructure" was included in the 2020 government work report...in a while, " "New infrastructure" has become a hot spot of national concern. In fact, the "new infrastructure" mainly includes: 5G base station construction, UHV, intercity high-speed railway/urban rail transit, new energy vehicle charging piles, industrial Internet, big data center, and artificial intelligence. Under the trend of "new infrastructure", smart cities have become the focus of attention as the main stage of digital…