With 20 years of experience in core network planning, construction, and management, Cai Yali has spearheaded multiple key projects in China Mobile, such as IP-based softswitch deployment, convergent LTE core network construction, VoLTE network reconstruction, NFV cloud-based network technology breakthrough, 5G SA network construction, and commercialization of 5G New Calling. Cai Yali is a leading figure in the core network field of China Mobile.