Category: Call Flow
5G NR SR – Scheduling Request
Introduction SR also known as Scheduling Request is a very famous word for telecom Dev, Test, and Optimization Engineers. It is a Layer 1 (Physical Layer) signal or message sent […]
Early Paging Indication in 5G NR – EPI Release 17
Introduction 3GPP release 17 for 5G NR, introduced the paging enhancements for UE Power Saving, the enhancement is named as Early Paging Indication (EPI). In earlier release 15, in high […]
X2 Handover Call Flow in 4G LTE
Introduction In handover process a UE sessions are transferred from the current serving cell to another one while it is moving towards a neighbor cell and UE ends up with […]
5G N26 Interface – 5G to 4G Interworking
N26 interface Introduction N26 interface is an interface which interconnects the 5G Core network function AMF with 4G network node MME and enables interworking between 5G to 4G and visa […]
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 – 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 […]
5G NR SDAP – Service Data Adaptation Protocol
The 5G NR has introduce new mechanism to manage the Quality of Service via QoS flow and to handle QoS flow specifications has introduced a new Sublayer SDAP in air-interface […]
5G NAS Mobility Management – 5GMM
At 5GC, NAS Mobility Management (5GMM) procedures are responsible to keep track whereabouts of the UE, UE authentication and control integrity protection and ciphering. The 5GMM procedures also used by […]
5G SA Handover – Inter gNB-DU and Intra gNB-CU Handover
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 […]