PCRF Virtualization via Segmented VMs and IP Routing
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Solution Overview
Problem
Conventional technologies face challenges in flexibly configuring Virtual Machines (VMs) for Policy and Charging Rules Function (PCRF) extensions, resulting in high costs and low cost-effectiveness.
Innovation Solution
The solution involves dividing PCRF functions into control, user plane, and storage functions, implemented by separate virtual machines connected through an internet protocol (IP) route, allowing for flexible configuration and resource adjustments via a mediation device and virtualization switch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If PCRF functions are entirely virtualized to form a PCRF VM, then network device functions are implemented through VM technology, but it becomes difficult to flexibly configure VMs when extending PCRF VM performances
Solution Approach 1:
The PCRF VM is segmented into multiple functional modules including control plane virtual machines, user plane virtual machines, I/O virtual machines, search virtual machines, and storage virtual machines. Each module can be independently configured, deployed, and scaled, enabling flexible extension of PCRF VM performances without requiring complete reconfiguration of the entire VM system.
2Adaptability or versatility
If multiple PCRF VMs are deployed with a virtualization switch for routing, then routing among multiple PCRF VMs is enabled, but the cost increases and cost effectiveness decreases
Solution Approach 1:
The virtualization switch is designed to handle multiple routing scenarios and functions within a single device. It can route traffic between multiple PCRF VMs, perform load balancing, and adapt to different routing requirements, thereby reducing the need for multiple specialized routing devices and lowering overall system cost while maintaining high adaptability.
Data Source
AI summary
A policy and charging rules function (PCRF) virtualization method, device and a virtualization policy and charging system are provided. The device includes: at least two virtual machine; where each of the virtual machine correspondingly realizes at least one function of the PCRF device; and the virtual machines are connected to each other through an Internet Protocol (IP) rout. According to the technical solution of the embodiments of the present disclosure, when a function of a PCRF VM is expanded, the VM can be configured flexibly, thereby reducing the cost and improving the performance price ratio.