Category: 5G Call Flow
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 NR pdcch-ConfigSIB1 – ControlResourceSetZero & SearchSpaceZero
In 5G, during initial network access, a UE does a completes a band scan for SSB decodes the PBCH. The PBCH provides sufficient information lo allow the UE to proceed […]
SSC Modes – Session and Service Continuity in 5G
In any telecom technology one of the key feature requirement is data session and service continuity to enusre the uninterrputed service experience to the users irrespective of any change of […]
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 […]