A Quantitative Approach for Refactoring NFV-based Mobile Core Networks
Wei‐Kuo Chiang, Hexin Chen · 2019
Evolved Packet Core (EPC) is a framework for providing converged voice and data on a 4G network. Recently Control and User Plane Separation of EPC nodes (CUPS) is proposed to improve the scalability of the EPC network, and enhance data traffic in mobile core networks [1]. Network Function Virtualization (NFV) abstracts and modularizes the network functions from network entities [2]. In this way, operators can create, scale, and deploy network entities according to real-time traffic conditions. This paper proposes a quantitative approach for refactoring the control plane of CUPS-based EPC as the foundation to minimize signaling delay and improve resource utilization of the NFV-based mobile core network.