Sign in Subscribe

5g ngc

Last updated on 

The 5G Next Generation Core (5G NGC) is a central component of the 5G network architecture. Let's break down the technical aspects of the 5G NGC:

1. 5G NGC Overview:

The 5G NGC is a fundamental architectural change from its predecessor, the 4G LTE Evolved Packet Core (EPC). While the EPC was primarily designed for human-to-human communication, the 5G NGC is intended to support a diverse set of services, including massive IoT (Internet of Things), ultra-reliable low-latency communication (URLLC), and enhanced mobile broadband (eMBB).

2. Key Characteristics:

  • Service-Based Architecture (SBA): One of the significant shifts from EPC to 5G NGC is the adoption of an SBA. This allows for more flexibility, scalability, and quicker service deployment.
  • Network Slicing: With 5G NGC, network slicing becomes a prominent feature. It allows multiple logical networks to be created on top of a shared physical infrastructure, catering to various service requirements and use cases.

3. Key Functionalities and Components:

  • AMF (Access and Mobility Management Function): Manages user plane and control plane functionalities related to device registration, mobility, and session management.
  • SMF (Session Management Function): Responsible for session management, including establishing, maintaining, and terminating data sessions.
  • UPF (User Plane Function): Handles user plane traffic routing, packet inspection, and forwarding based on policies and services.
  • AUSF (Authentication Server Function): Manages subscriber authentication and authorization. It works closely with the UE (User Equipment) to ensure secure access to the network.
  • NEF (Network Exposure Function): Allows authorized third-party applications to request network services or information, fostering a more open and programmable network.
  • NRF (Network Repository Function): Maintains a centralized directory of available services within the network, enabling efficient service discovery and routing.
  • UDM (Unified Data Management): Centralized repository for subscriber data, providing functions like data storage, retrieval, and management.

4. Security in 5G NGC:

  • Enhanced Authentication: 5G NGC introduces improved security mechanisms like enhanced subscriber authentication, ensuring that only authorized devices can access the network.
  • End-to-End Encryption: To protect user data, 5G NGC emphasizes end-to-end encryption, ensuring that data remains confidential and secure during transmission.
  • Network Exposure Security: With the introduction of NEF, there's a focus on ensuring that third-party applications only access authorized services, enhancing the overall security posture.

5. Integration with Edge Computing:

5G NGC is designed to work seamlessly with edge computing architectures. By deploying network functions closer to the edge, it reduces latency, enhances performance, and enables new use cases like augmented reality (AR), virtual reality (VR), and real-time analytics.