4G is the abbreviation of the fourth generation mobile communication and its technology. It is a technical product that integrates 3G and WLAN and can transmit high-quality video images, and the image transmission quality is comparable to that of HDTV. Telecom 4G, also known as Tianyi 4G, is a communication tariff package launched by China Telecom based on 4G network. In 20 13, the opening ceremony and press conference of China Telecom Tianyi 4G service was held ceremoniously, and China Telecom Tianyi 4G trial network was opened in Nanjing, adding 4G network assistance on the basis of excellent 3G. On February 3, 20 14, Telecom 4G was officially opened in China. 2065438+On February 27th, 2005, the Ministry of Industry and Information Technology officially issued the FDD-LTE license to China Telecom. Since then, China Telecom will enter the era of high-speed development of 4G.
Coverage:
China Telecom's Nanjing Tianyi 4G trial network, the first-phase planning site is based on the venues of the Asian Youth Games and the Youth Olympic Games, covering all competition venues and non-competition venues; Supplemented by transportation and services, covering airports, railway stations and main traffic roads; Taking historical and cultural exchanges as an extension, it covers all major scenic spots and universities in Nanjing.