5G EPS Fallback – 5G to 4G Handover

Introduction A Network Operator providing  5G NR and 4G LTE service, but it may not be possible to have 5G coverage everywhere and at some point when 5G coverage or […]

5G PDU Session and Its Types

Introduction In 5G System, the one of the key task for the networ is to provide the connectivity to UE towards  a Data Network (DN) know as 5G DNN which […]

5G SA Inter gNB Handover – N2 or NGAP Handover

Introduction Mobility (Handover) in an important feature in any telecom generation and so it is in 5G. The basic handover procedure remains same as it was in legacy networks, i.e. UE reports measurement report with […]

5G SA Inter gNB Handover – Xn Handover

Introduction Mobility (Handover) in an important feature in any telecom generation and so it is in 5G. The basic handover procedure remains same as it was in legacy networks, i.e. UE reports measurement report with […]

5G MAC BSR – Buffer Status Reporting

The Buffer Status reporting (BSR) is a MAC layer procedure which is used by the UE to provide information about the amount of data available for transmission in the UL […]

5G NR BFR – Beam Failure Recovery

The 5G communication specially at higher frequencies or mmWave is using Massive MIMO with Beamforming. Beamforming is a signal processing technique that allows gNB send targeted beams of data to […]

5G NAS – Authentication Failures Cause Values

In 5G Network, Non-access stratum (NAS) layer managed the PLMN specfic Network Failure and Authentication Failures between the 5G UE and 5G Core. Mutual authentication is a mandatory security procedure […]

5G NAS – Registration Reject Cause

In 5G NR, Registration is a NAS layer or 5G Mobility Management (5GMM) process and it is very much similar to the Attach Process in LTE except some of the […]