The 5 G network bears the vision of "Internet of everything"

which enables the service scope of mobile communication to extend from human-to-human communication to the intelligent interconnection of things and human. To this end

5 G should be more flexible and scalable to accommodate the massive number of device connections and diverse user needs. On-demand

customized

and differentiated services will be an important model and a new value growth point for operators. End-to-end network slicing is a key technology to achieve this goal. This paper studies the network slicing technology

and analyzes the role of network slicing technology in the 5 G era from three aspects: architecture

enabling technology and application.