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 N26 Interface – 5G to 4G Interworking

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 versa. N26 […]

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 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 […]

Lawful Intercept (LI) in 5G System

For any Service Provider/Wireless Operator Lawful Interception (LI) is one of the must satisfy regulatory requirements and a legal obligation towards the Law Enforcement Agencies and Government Authorities. Lawful Intercept […]