| .. |
| SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org> |
| SPDX-License-Identifier: Apache-2.0 |
| |
| |
| Glossary |
| ======== |
| |
| Protocols |
| --------- |
| - NGAP: NG Application Protocol used over N2 interface |
| - S1AP: S1 Application Protocol used over S1-AP interface |
| - Diameter: S6a, Gx interface |
| - NAS: Non-Access-Stratum used between UE & MME/AMF. |
| - PFCP: Packet Forwarding Control Protocol |
| - GTPU: GTP user plane protocol. Used on s1-U, s5-U, N3, N9 interfaces |
| - GTPv2: GTP control plane protocol used on s11 interface between MME & SGW |
| |
| Network Functions |
| ----------------- |
| |
| - AMF: Access and Mobility Management Function |
| - UPF: User Plane Function |
| - SMF: Session Management Function |
| - NRF: Network Repository Function |
| - NSSF: Network Slice Selection Function |
| - PCF: Policy & Charging Function |
| - AUSF: Authentication Server Function |
| - UDM: Unified Data Management |
| - UDR: Unified Data Repository |
| - CHF: Charging Function |
| - NWDAF: Network Data Analytics Function |
| - NEF: Network Exposure Function |
| - MME: Mobility Management Entity |
| - SGW: Serving Gateway |
| - PGW: PDN Gateway |
| - HSS: Home Subscriber Server |
| - PCRF: Policy and Charging Rule Function |
| |
| 3gpp Interfaces |
| --------------- |
| - N2: gNodeB to AMF interface |
| - N4: SMF to UPF interface |
| - SBI interface |
| - S1AP: eNodeB to MME interface |
| |
| Misc |
| ---- |
| SA: Standalone Architecture |
| URLLC : Ultra Reliable Low Latency Communication |