On June 6, 2019, the Ministry of industry and information technology officially issued 5g commercial licenses to China Telecom, China Mobile, China Unicom and China Radio and television. In the past three years, telecom operators have actively expanded the depth and breadth of 5g coverage, and new industries, new formats and new models have emerged. By the end of July, 1.968 million 5g base stations had been completed and opened nationwide. All prefecture level cities, county towns and 96% of townships and towns had achieved 5g network coverage, and the number of 5g mobile phone users reached 475 million. At present, 5g investment of national operators exceeds 400 billion yuan. At the recently held 2022 World 5g conference, telecom operators expressed that they would seize the critical period of 5g large-scale application, continuously improve the network support capacity through joint construction and sharing, continue to tap the needs of individual users and the industry, accelerate the digital transformation of 5g enabling thousands of industries, and accelerate the development of 5g large-scale application. Co construction and sharing speed up high-quality construction of 5g for commercial use in the past three years, telecom operators have accelerated the pace of 5g construction through co construction and sharing, and reduced the cost of network infrastructure construction and operation and maintenance. According to Ke Ruiwen, chairman of China Telecom, China Telecom and China Unicom have jointly built and shared, built the world's first 5g SA co built and shared network with the largest scale and the fastest network speed, opened 870000 5g shared base stations, and realized the basic continuous coverage of key townships. The joint construction and sharing has produced huge economic and social benefits. The two sides have saved 240 billion yuan of investment, saved more than 20 billion yuan of operating costs, saved more than 10 billion kwh of electricity, and reduced carbon emissions by 6 million tons. China Mobile further promoted the co construction and sharing of 5g networks with China Radio and television, and made efforts to build a base network of 700MHz band, orderly promoted the construction of indoor coverage and accurately built 2.6GHz and 4.9ghz bands. Yang Jie, chairman of China Mobile, said that China Mobile has opened more than 1 million 5g base stations, accounting for more than 30% of the total number of global base stations; 5g package customers have exceeded 500 million. China Radio and television 5g was officially launched on June 27 this year. At present, 29 provinces across the country have officially entered the trial commercial stage of radio and television 5g network. Song Qizhu, chairman of China Radio and television, introduced that up to now, China Radio and television and China Mobile have jointly built and shared 850000 5g base stations, and will soon share 1.91 million 4G base stations, and fully realize interconnection with China Telecom and China Unicom. "Chinese operators pay more attention to the high-quality coordinated development of the industry in the 5g era." Liu Liehong, chairman of China Unicom, said that the 5g co construction and sharing between China Telecom and China Unicom has achieved significant economic and social benefits. The four operators also actively explore the co construction and sharing of 5g low-frequency networks in remote areas under the promotion of the Ministry of industry and information technology, and work together to create 5g boutique networks, enhance the industrial value with the high-quality coordinated development of 5g, and contribute to the economic and social development. While accelerating the construction and sharing of 5g, telecom operators have also increased their investment in innovation. The number of necessary patents for 5g standards declared by Chinese enterprises remains the world's leading. With the acceleration of construction and application, 5g has also released huge economic benefits. According to the data released at the 2022 World 5g conference, according to statistics, the national operators have accumulated 5g