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Beginners: 5G Terminology
The document provides an overview of the 5G system, defining its components such as the 5G access network, core network, and user equipment. It elaborates on the architecture and functionalities of the Next Generation Radio Access Network (NG-RAN) and the 5G New Radio (NR) system, which is incompatible with previous LTE systems. For more details on 5G specifications, resources from 3GPP are cited for further exploration.
Beginners: 5G Terminology
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- 2. 5G System (5GS)– Simplified ©3G4G 5G System is defined as 3GPP system consisting of 5G Access Network (AN), 5G Core Network and UE. The 5G System provides data connectivity and services. 3GPP TS 23.501: System Architecture for the 5G System; Stage 2 3GPP TS 23.502: Procedures for the 5G System; Stage 2 NG-RAN Data Network (DN) Data Network (DN) Access Network Core Network Air Interface 5GC
- 3. Control plane function group 5GSystem (5GS) – Actual ©3G4G Data Network (DN) Data Network (DN)gNodeB (NG-RAN) 5G UE User plane function UPF AMF SMF NSSF NEF NRF AUSFFE PCFFEUDM AF UDR FE UDC N1 N2 N3 N6 N4 Nnssf Nnef Nnrf Nudm Nausf Npcf Naf AF Application Function AMF Access and Mobility management Function AUSF Authentication Server Function DN Data Network FE Front End NEF Network Exposure Function NRF NF Repository Function NSSF Network Slice Selection Function PCF Policy Control Function (R)AN (Radio) Access Network SEPP Security Edge Protection Proxy SMF Session Management Function UDM Unified Data Management UDR Unified Data Repository UDSF Unstructured Data Storage Function UE User Equipment UPF User Plane Function
- 4. 5G New Radio(NR) ©3G4G A new 5G-specific radio communication system called New Radio (NR) has been defined with no backward compatibility with the existing LTE and LTE- Advanced systems.
- 5. 5G New Radio(NR) ©3G4G
- 6. eNB, ng-eNB, gNB ©3G4G •eNodeB (eNB) – LTE access network from 3GPP Rel-8 up to 3GPP Rel-14 • Next generation eNodeB (ng-eNB) – LTE access network from 3GPP Rel- 15 onwards • node providing E-UTRA user plane and control plane protocol terminations towards the UE, and connected via the NG interface to the 5GC. • Next generation NodeB (gNB) – 5G access network from 3GPP Rel-15 onwards. • node providing NR user plane and control plane protocol terminations towards the UE, and connected via the NG interface to the 5GC.
- 7. Next Generation RadioAccess Network (NG-RAN) ©3G4G An NG-RAN node is either: • a gNB, providing NR user plane and control plane protocol terminations towards the UE; or • an ng-eNB, providing E- UTRA user plane and control plane protocol terminations towards the UE.
- 8. 5G Specifications ©3G4G • 3G4G:3GPP 5G Specifications – http://www.3g4g.co.uk/5G/5Gtech_0003_Standards.html • 3GPP Specs Archive - http://www.3gpp.org/ftp/Specs/archive/
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