5G NGC—Key Technology—Network Slicing—Underlying Technical Support

table of Contents

Characteristics of network slicing

1. Isolation : Different network slices are isolated from each other, and an abnormality in one slice will not affect other slices.
2. Virtualization : Network slicing is a virtual network divided on the physical network.
3. On-demand customization : You can customize the business, function, capacity, service quality, and connection relationship of network slices according to different business needs, and you can also perform slice lifecycle management on demand.
4. End-to-end : Network slicing is for the entire network. It requires not only the core network, but also the access network, transmission network, and management network.

The underlying technical support of network slicing — NFV/SDN

The realization of network slicing requires the physical network to be divided into multiple independent virtual networks through virtualization technology. Each virtual network is called a network slice. The network functions in each network slice can be customized and cut through Dynamic network function orchestration forms a complete instantiated network architecture. The services between different slices are isolated from each other and do not interfere with each other, which can meet the needs of vertical industry applications that do not need to build a dedicated network independently but can enjoy network resources exclusively.