5G Core Network HQ: World Trade Center, Bangalore, India. Offices: Bhubaneswar, Vijayawada, Hyderabad – INDIA, Muscat – OMAN, Dallas – USA, New Taipei City – TAIWAN. 5G Core Network Architecture Dimensioning 5GC KPI's for VNF Implementation SAU (Simultaneous attached users) TPS (both control and Bearer sessions) Number of PDN sessions per VM /Instance DL+UL throughput with and without DPI N2/N3 interfaces to gNodeB from AMF & UPF No of cores per server to host the VNF namely SMF,AMF,UDM,UDR,AUSF, UPF,NSF etc. Number of Cores per Gbps of user plane traffic namely UPF Overview 5G core Network SA architecture conforms to SDN / NFV Service based architecture through VNFs. Mobility and Connection Control VNFs: AMF, AUSF, UDM, UDSF, UDR, UDM, & EIR Session Control and Data processing VNFs: SMF & N3IWF 5G Service Support VNFs: NEF & MEP 5G Business Enablement VNFs: PCF, NRF, NSSF & NEF Conformance to 3GPP Rel-15 / 16. IMS functionality to provide voice over NR (VONR).