What is the logo of China Telecom and China Unicom's 4g mobile phone network? Is it TD-LTE or FDD-LTE

Mobile 4G adopts TD-LTE system, while Unicom 4G and Telecom 4G adopt TD-LTE and LTE-FDD system. The advantages of China Unicom's 4G are obvious: (1) the Internet speed is fast, and China Unicom adopts dual 4G, that is, TD-LTE and LTE-FDD hybrid networking. The peak value of TD-LTE can reach 100 Mbps, and that of LTE-FDD can reach 150 Mbps. (2) Preferential tariffs. Unicom's 4G national package is one for free, and the 4G combination package DIY can be combined at will, and the monthly rent is as low as 8 yuan/month. (3) Good coverage. The 4G network has built more than 10000 base stations, and the main urban areas and streets have good signals; 3G network Unicom has been operating for many years, which is very mature and has good coverage. It has the double guarantee of 4G network 150M and 42M of 3G network, and the speed is stable. (4) Wide roaming, Unicom's 4G mobile phone users can enjoy high-speed roaming in more than 100 countries and regions. If you are an old user of Guangdong Unicom, you can click on the "Old User Zone" of Wo Mall and select "Upgrade 4G", or you can log in to Unicom's online business hall or mobile phone business hall to upgrade.