Category: NAS Signalling
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 […]
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 NAS and RRC Signalling Parameters for Voice Support
Introduction Voice Service support is always critical for any network. A user can initiate a Voice Call for normal conversation or for emergency support. In 5G there are multiple ways […]
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 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 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 […]
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. […]
Voice Over NR (VoNR Call Flow)
VONR Introduction We are seeing 5G Stand Alone (SA) data services are rolling out throughout the world, it is very much essential for MNOs to provide services such as Voice/Video […]
5G RAN and 5GC Network Slice Signaling
Network Slicing is considered as one of the key feature by 3GPP in 5G. A network slice can be looked as a logical end-to-end network that can be dynamically created. […]