ccording to China information technology instituteCAICTNews，Shenzhen Institute of Information and Communication（Southern Branch of China Information and Communication Research Institute）The fifth generation mobile communication test network in shenzhen, jointly built by shenzhen mobile, China unicom, China telecom, huawei, zte and other enterprises, has been officially launched. It is the first 5G industry application test network in China that adopts SA to form a network independently.