Research on Implementation Scheme of Power IMS Network Based on NFV Architecture

Abstract

At present, the State Grid Corporation switching network is evolving from a program-controlled switching network based on circuit-switched technology to a next-generation switching network based on IP technology. The virtualization of power communication core network has become the development trend of grid communication. Among them, network function virtualization (NFV) decouples the software functions and hardware functions of traditional network equipment, reduces the investment and operation costs of the network and improves the deployment efficiency of new services. This paper analyzes the benefits of NFV technology architecture and NFV to power IMS core network, proposes the implementation scheme and network evolution of power IP multimedia subsystem (IMS) network based on NFV architecture, and constructs the virtual network architecture as the architecture scheme of network function virtualization. The scheme of bearer network in the virtualized environment of power IMS core network is proposed, and the advantages and challenges of current NFV technology are summarized.