Why a new core?
Advanced 5G use cases like ultra-low latency, very high throughputs, and massive devices connected will change businesses and the lives of consumers. Along with 5G NR (New Radio), the 5G core is also required to change with advanced technologies that can support applications of 5G technology. The commercial 5G deployments are based on NR non-Standalone technology that uses existing LTE radio access for signaling between the devices and the network, and EPC (Evolved Packet Core) networks enhanced to support the 5G NSA (Non-Standalone). 5G NSA deployment allows 5G services to be added quickly and reusing the existing 4G networks. For fully 5G deployment, SA (Standalone) deployment is there which requires an independent 5G network and the 5G core. This new approach is required for further advancements in telecom technology and future 6G technologies. The new 5GC addresses the needs of the future as well. The New 5G core should be able to support enhanced end-user experience, it should be able to simplify network operations, increase service creation agility, and can improve network capabilities.
Enhanced user experience includes faster access, lower latency, higher bit rates, reduced signaling. Simplified operations and service agility include less complex orchestration, service-based architecture, cloud-native deployments, extensibility, and openness. A future proof network architecture includes target architecture for industry innovation, addresses multiple verticals, enables an ecosystem service innovation, addresses new consumer services. Improved network capabilities include an end-to-end network slicing model, enhanced QoS model, improved end-to-end security, and edge computing.