5G SA2
2G, 3G, 4G, 5G NSA 3x
2G, 3G, 4G, 5G
Unlicensed wireless
Fixed
Data
Layer
Shared Data Layer
UDR
UDSF
Policy
Subscription
User
Plane
Cloud Mobile
Gateway
Session Border
Controller
SP-GW
GGSN
W-AGF
ePDG
TWAG
N3IWF
UPF
BGW
AGW
Broadband Network Gateway
Registers
Cloud Mobile
Gateway
Cloud Signaling Director
Cloud Mobility
Manager
Network Exposure
Function
Policy
Controller
Converged
Charging
Cloud Network
Resource Director
IMS
Network
Data
Analytics
UDM
BSF
AMF
MME
SGSN
SMSF
TAS
CSCF
SEPP
PCF
PCRF
NRF
NSSF
CHF
OCS
SMF
DRA
AUSF
SP-GW
NWDAF
EIR
HSS
HLR
EIR
SCP
NEF
SCEF
Control
Plane
Nokia Mobile Core: hover over the tiles to learn more
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Shared Data Layer (SDL)
Separate data storage and service logic by moving all subscriber and session data into a highly reliable, scalable and readily-available data store.
Subscription, Subscription Data
Policy, Policy Rules
UDSF, Unstructured Data Storage Function
UDR, Unified Data Repository
UDM, Unified Data Management
AUSF, Authentication Server Function
HSS, Home Subscriber Server
HLR, Home Location Register
Registers
Manages subscriber data for the purposes of authentication and authorization of subscriber services, also their current status and serving network’s location.
EIR, Equipment Identity Register
EIR, Equipment Identity Register
SCP, Service Communication Proxy
BSF, Binding Support Function
SEPP, Security Edge Protection Proxy
DRA, Diameter Routing Agent
Cloud Signaling Director (CSD)
Manages signaling messages within the core and between networks, ensuring interoperability, scaling, and security.
AMF, Access and Mobility Management Function
MME, Mobility Management Entity
Cloud Mobility Manager (CMM)
Provides access and mobility management as the interface function between the Radio Access Network and the Core.
SGSN, Serving GPRS Support Node
SMSF, Short Message Service Function
TAS, Telephony Application Server
CSCF, Call Session Control Function
IP Multimedia Subsystem (IMS)
Provides voice, messaging and new calling services.
PCF, Policy Control Function
PCRF, Policy and Charging Rules Function
Policy Controller (PC)
Determines the resources and services that can be used to support connected devices.
CHF, Charging Function
OCS, Online Charging System
Converged Charging (CC)
Provides real-time rating and charging of all network traffic, so that subscribers and interconnected networks are appropriately charged for what they consume.
SMF, Session Management Function
SP-GW, Serving Gateway & Packet Data Network Gateway Function
Cloud Mobile Gateway (CMG)
Provides media gateway and related functions within the packet core.
NEF, Network Exposure Function
SCEF, Service Capability Exposure Function
Network Exposure Function (NEF)
Securely expose network capabilities via network APIs to application providers.
NRF, Network Repository Function
NSSF, Network Slice Selection Function
Cloud Network Resource Director (CNRD)
Manages the registration of the core’s network functions in a service-based architecture (SBA) along with managing the core’s slicing.
NWDAF, Network Data Analytics Function
Network Data Analytics Function (NWDAF)
Collects network data and performs analytics and provides insights to authorized entities.
N3IWF, Non-3GPP Interworking Function
UPF, User Plane Function
SP-GW, Serving Gateway & Packet Data Network Gateway Function
GGSN, Gateway GPRS Support Node
ePDG, Evolved Packet Data Gateway
TWAG, Trusted Wireless Access Gateway
Cloud Mobile Gateway (CMG)
Provides media gateway and related functions within the packet core.
W-AGF, Wireline Access Gateway Function
Broadband Network Gateway (BNG)
Provides media gateway between fixed access and the mobile core.
BGW, Border Gateway
Session Border Controller (SBC)
An element of the IMS voice core, the SBC secures and manages IMS’ signaling and media (voice) traffic at the network’s edge.
AGW, Access Gateway
