Category: 5G NR
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 – PDU Session Reject Cause Values and Reasons
5G connectivity service is named as PDU Session. A PDU session is very similar to an EPS bearer in LTE, except for the QoS model and the supported user data. […]
5G NAS – Registration Request
5G NAS Registration Request is a 5GMM Procedure Initaiated by a UE. The network can resond as Registartion Accept in successful case or Registration Reject with specified cause value in […]
5G NR Downlink HARQ Codebook
In 5G NR, 3GPP specification has defined HARQ Codebook to provide the feedback to base station for Downlink data transmission i.e., PDSCH Data. UE Sends the ACK/NACK for corresponding PDSCH […]
NGAP – NG Application Protocol over N2 Interface
In the 5G SA, NG interface is designed to interconnect gNB and 5G Core which is similar to S1 interface in 4G LTE connects eNB and EPC. Considering Control and […]
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 […]
5G NR Cell Global Identity (NCGI) Planning and Calculations
In 5G, NR Cell Global Identifier (NCGI) is used to identify NR cells globally and similar to ECGI (EUTRA Cell Global Identifier ) in 4G LTE. The NCGI is constructed […]
5G Authentication and Key Management 5G-AKA
Secure communication in any cellular network can be achieved with help of AKA procedure. AKA is Authentication and Key Management procedure which involve mutual authentication between User Device and the […]
5G NR NSA Mode: UE Network and Radio Capability Enquiry
In any wireless system, for accurate, efficient coordination and intercommunication base station must know the all capability about the UE. The base station enquires the UE Capability and UE report […]
5G NR SSB Positioning – Time and Frequency Resources
In 5G NR, Synchronization Signal Block (SSB) includes PSS, SSS and PBCH and its location compared to LTE is completed different. In LTE, Sync signal position is straight forward located […]