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5gc_network_functions [2025/03/29 13:30] – created kkaragoz5gc_network_functions [2025/03/29 13:35] (current) – kkaragoz
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-  - +  - AMF: Access and Mobility Management Function 
- <font 11.0pt/Calibri;;inherit;;inherit>AMF</font> +  - SMF: Session Management Function 
- <font 11.0pt/Calibri;;inherit;;inherit>: Access and Mobility Management Function</font> +  - PCF: Policy Control Function 
-  - +  - UDM: Unified Data Management 
- <font 11.0pt/Calibri;;inherit;;inherit>SMF</font> +  - AUSF: Authentication Server Function 
- <font 11.0pt/Calibri;;inherit;;inherit>: Session Management Function</font> +  - NSSF: Network Slice Selection Function 
-  - +  - NEF: Network Exposure Function 
- <font 11.0pt/Calibri;;inherit;;inherit>PCF</font> +  - NRF: Network Repository Function 
- <font 11.0pt/Calibri;;inherit;;inherit>: Policy Control Function</font> +  - SEPP: Security Edge Protection Proxy 
-  - +  - UPF: User Plane Function 
- <font 11.0pt/Calibri;;inherit;;inherit>UDM</font> +  - UDR: Unified Data Repository 
- <font 11.0pt/Calibri;;inherit;;inherit>: Unified Data Management</font> +  - CHF: Charging Function 
-  - +  - NWDAF: Network Data Analytics Function 
- <font 11.0pt/Calibri;;inherit;;inherit>AUSF</font> +  - SMSF: SMS Function 
- <font 11.0pt/Calibri;;inherit;;inherit>: Authentication Server Function</font> +  - LMF: Location Management Function 
-  - +  - AF: Application Function 
- <font 11.0pt/Calibri;;inherit;;inherit>NSSF</font> +  - GMLC: Gateway Mobile Location Center 
- <font 11.0pt/Calibri;;inherit;;inherit>: Network Slice Selection Function</font> +  - 5G-EIR: 5G Equipment Identity Register 
-  - +  - N3IWF: Non-3GPP Interworking Function
- <font 11.0pt/Calibri;;inherit;;inherit>NEF</font> +
- <font 11.0pt/Calibri;;inherit;;inherit>: Network Exposure Function</font> +
-  - +
- <font 11.0pt/Calibri;;inherit;;inherit>NRF</font> +
- <font 11.0pt/Calibri;;inherit;;inherit>: Network Repository Function</font> +
-  - +
- <font 11.0pt/Calibri;;inherit;;inherit>SEPP</font> +
- <font 11.0pt/Calibri;;inherit;;inherit>: Security Edge Protection Proxy</font> +
-  - +
- <font 11.0pt/Calibri;;inherit;;inherit>UPF</font> +
- <font 11.0pt/Calibri;;inherit;;inherit>: User Plane Function</font> +
-  - +
- <font 11.0pt/Calibri;;inherit;;inherit>UDR</font> +
- <font 11.0pt/Calibri;;inherit;;inherit>: Unified Data Repository</font> +
-  - +
- <font 11.0pt/Calibri;;inherit;;inherit>CHF</font> +
- <font 11.0pt/Calibri;;inherit;;inherit>: Charging Function</font> +
-  - +
- <font 11.0pt/Calibri;;inherit;;inherit>NWDAF</font> +
- <font 11.0pt/Calibri;;inherit;;inherit>: Network Data Analytics Function</font> +
-  - +
- <font 11.0pt/Calibri;;inherit;;inherit>SMSF</font> +
- <font 11.0pt/Calibri;;inherit;;inherit>: SMS Function</font> +
-  - +
- <font 11.0pt/Calibri;;inherit;;inherit>LMF</font> +
- <font 11.0pt/Calibri;;inherit;;inherit>: Location Management Function</font> +
-  - +
- <font 11.0pt/Calibri;;inherit;;inherit>AF</font> +
- <font 11.0pt/Calibri;;inherit;;inherit>: Application Function</font> +
-  - +
- <font 11.0pt/Calibri;;inherit;;inherit>GMLC</font> +
- <font 11.0pt/Calibri;;inherit;;inherit>: Gateway Mobile Location Center</font> +
-  - +
- <font 11.0pt/Calibri;;inherit;;inherit>5G-EIR</font> +
- <font 11.0pt/Calibri;;inherit;;inherit>: 5G Equipment Identity Register</font> +
-  - +
- <font 11.0pt/Calibri;;inherit;;inherit>N3IWF</font> +
- <font 11.0pt/Calibri;;inherit;;inherit>: Non-3GPP Interworking Function</font> +
- <font 11.0pt/Calibri;;inherit;;inherit>User Plane Function</font> +
- <font 11.0pt/Calibri;;inherit;;inherit></font> +
- <font 11.0pt/Calibri;;inherit;;inherit>UPF - User Plane Function</font>+
  
-  * +User Plane Function
- <font 11.0pt/Calibri;;inherit;;inherit>Routes user data, enforces QoS, and performs traffic optimization</font> +
- <font 11.0pt/Calibri;;inherit;;inherit>Data Management & Charging</font> +
- <font 11.0pt/Calibri;;inherit;;inherit>UDR - Unified Data Repository</font>+
  
-  * +UPF - User Plane Function
- <font 11.0pt/Calibri;;inherit;;inherit>Central storage for subscriber data (policies, profiles).</font> +
- <font 11.0pt/Calibri;;inherit;;inherit>CHF - Charging Function</font>+
  
-  * +  * Routes user data, enforces QoS, and performs traffic optimization 
- <font 11.0pt/Calibri;;inherit;;inherit>Manages charging, billing, and usage reporting.</font>+ 
 +Data Management & Charging 
 + 
 +UDR - Unified Data Repository 
 + 
 +  * Central storage for subscriber data (policies, profiles). 
 + 
 +CHF - Charging Function 
 + 
 +  * Manages charging, billing, and usage reporting. 
 + 
 +Control Plane Functions 
 + 
 +AMF - Access and Mobility Management Function 
 + 
 +  * Manages device registration, mobility and connection states. 
 + 
 +SMF - Session Management Function 
 + 
 +  * Handles session establishment, IP allocation, and UPF control. 
 + 
 +PCF - Policy Control Function 
 + 
 +  * Enforces dynamic policies for QoS, slicing, and charging. 
 + 
 +UDM - Unified Data Management 
 + 
 +  * Manages subscriber data (authentication, profiles) 
 + 
 +AUSF - Authentication Server Function 
 + 
 +  * Performs 5G-AKA authentication for devices. 
 + 
 +NSSF - Network Slice Selection Function 
 + 
 +  * Assigns network slices based on device/service requirements. 
 + 
 +NEF - Network Exposure Function 
 + 
 +  * Exposes network APIs to third-party applications (e.g. IoT, edge computing). 
 + 
 +NRF - Network Repository Function 
 + 
 +  * Service discovery and registration for 5GC functions. 
 + 
 +SEPP - Security Edge Protection Proxy 
 + 
 +  * Secures signaling between different operator networks (inter-PLMN). 
 + 
 +Analytics & Specialized Functions 
 + 
 +NWDAF - Network Data Analytics Function 
 + 
 +  * Provides AI/ML-driven insights (e.g. traffic prediction, anomaly detection). 
 + 
 +SMSF - SMS Function 
 + 
 +  * Supports SMS services over 5G. 
 + 
 +LMF - Location Management Function: 
 + 
 +  * Determines device location (e.g. emergency services) 
 + 
 +AF - Application Function: 
 + 
 +  * Represents third-party applications (e.g. video streaming, IoT) that interact with 5GC via the NEF to request services (e.g. QoS adjustments). 
 +  * AF is critical for enabling network-aware applications (e.g. adjusting bandwidth for a video call) 
 + 
 +GMLC - Gateway Mobile Location Center: 
 + 
 +  * Retrieves device location for external application (e.g. emergency services, logistics). While inherited from LTE, it interfaces with 5GC's LMF for location data. 
 +  * GMLC bridges 5GC with legacy location services but relies on LMF for actual positioning in 5G. 
 + 
 +5G-EIR - 5G Equipment Identity Register 
 + 
 +  * Validates device identities (IMEI) to block unauthorized/stolen devices. 
 +  * 5G-EIR replaces LTE's EIR but serves a similar anti-fraud role. 
 + 
 +N3IWF - Non-3GPP Interworking Function 
 + 
 +  * Connects untrusted non-3GPP networks (e.g., Wi-Fi, satellite) to 5GC via secure tunnels (IPsec) and interfaces with AMF/UPF.
  
  
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