MODELING OF SCALING UPF POD IN 5G CORE NETWORK BASED ON HPA KUBERNETES

Abstract

The UPF (User Plane Function) is responsible for transporting data to subscribers in PDU (Protocol Data Unit) sessions in the 5G and future 6G networks. UPF is typically implemented in software and packaged into a virtual machine or container that can be instantiated as individual UPF instances with specific resource requirements. The number of created UPF instances should be determined by the number of PDU sessions requested by the client to save the required resource consumption. This is controlled by a scaling algorithm. The article presents a model of resource division problem in 5G networks, using the simulation of Pod UPF in Kubernetes integrated with Open5GS via Horizontal Pod Autoscaler (HPA). Through simulation results, the advantages of this model are analyzed and evaluated.