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5G Network Abbreviations and Terminologies

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Below is the list of few terminology and abbreviations used in 5G NR.

New RAN: A Radio Access Network which can supports either NR/E-UTRA or both and have capabilities to interface with Next Generation Core Network (NG-CN). NG-C/U is the Control/User Plane interface toward NG-CN

gNB: New Radio (NR) Base stations which shall have capability to interface with 5G Core named as NG-CN over NG-C/U (NG2/NG3) interface as well as 4G Core known as Evolved Packet Core (EPC) over S1-C/U interface.

eLTE eNB: An eLTE eNB is evolved eNodeB that can support connectivity to EPC as well as NG-CN

Non-standalone NR : It is a 5G Network deployment configuration, where a gNB needs a LTE eNodeB as an anchor for control plane connectivity to 4G EPC or eLTE eNB as anchor for control plane connectivity to NG-CN

Standalone NR: It is a 5G Network deployment configuration where gNB does not need any assistance for connectivity to core Network, it can connect by its own to NG-CN over NG2 and NG3 interfaces

Non-standalone E-UTRA: It is a 5G Network deployment configuration where the eLTE eNB requires a gNB as anchor for control plane connectivity to NG-CN.

Standalone E-UTRA: It is typical 4G network deployment where a 4G LTE eNB connects to EPC

Xn Interface: It is a logical interface which interconnect the New RAN nodes i.e. it interconnects gNB to gNB and eLTE eNB to gNB and visa versa.