5G Network Functions
Explore the core network functions that power 5G networks and enable advanced services
Handles registration, connection, reachability and mobility management
Key Features:
- Registration management
- Connection management
- Reachability management
- Mobility management
- Access authentication
Interfaces:
Manages PDU sessions and controls user plane functions
Key Features:
- Session establishment
- Session modification
- Session release
- UPF selection
- Traffic steering
Interfaces:
Handles user data forwarding and traffic routing
Key Features:
- Packet routing
- Traffic forwarding
- QoS enforcement
- Usage reporting
- Lawful intercept
Interfaces:
Provides policy rules and controls network behavior
Key Features:
- Policy provisioning
- QoS control
- Charging control
- Usage monitoring
- Access control
Interfaces:
Manages subscription data and user authentication
Key Features:
- Subscription management
- Authentication credential processing
- User identification handling
- Access authorization
- SMS management
Interfaces:
Handles authentication procedures for network access
Key Features:
- Primary authentication
- EAP authentication
- Key derivation
- Authentication vector generation
- Security context management
Interfaces:
Control Plane Functions
Control plane functions handle signaling, session management, and policy control. They work together to establish, modify, and release user sessions while enforcing network policies and managing user mobility.
User Plane Functions
User plane functions handle actual user data forwarding and traffic processing. The UPF is the primary user plane function that routes packets, enforces QoS, and provides connectivity to external networks.