In 2016，China’s 4G broadband mobile communications networks and services maintained a rapid growth. LTE network was evolving to LTE-A/LTE-A Pro. 4G users and mobile data traffic kept a high speed growth. Mobile communication technology ushered in a comprehensive development. NB-IoT application was becoming a new hotspot of the wireless industry. 5G standardization and technical testing was in full swing. LTE technology was gradually applied to the broadband wireless private network. The unlicensed spectrum technology became a new direction of evolution. The intensified competition among the telecom operators accelerated their upgrading transformation and made them actively deal with the increasingly severe network security problems.