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Category: 5G Core

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 […]

December 13, 2021December 29, 2021 Author 5G, 5G Call Flow, 5G Core, 5G Network Architectures, 5G NR Standalone, RRC Signalling, Wireless Testing

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 […]

November 29, 2021January 13, 2023 Author 5G, 5G Core, 5G Network Architectures, 5G NR, Call Flow, Interviews, Voice Services, VoNR, Wireless Testing

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 […]

November 28, 2021November 28, 2021 Author 5G, 5G Call Flow, 5G Core, Call Flow, NAS Signalling, Signaling, Wireless Testing

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 […]

September 16, 2021November 28, 2021 Author 3GPP Specification, 5G, 5G Call Flow, 5G Core, NAS Signalling, New Radio, NR, Signaling

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 […]

August 9, 2021August 9, 2021 Author 5G, 5G Core, 5G NR, Call Flow, NR

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 […]

July 27, 2021August 5, 2021 Author 5G Core, Call Flow, NAS Signalling, Open RAN, RRC, Telco Cloud

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 […]

July 11, 2021July 11, 2021 Author 5G, 5G Call Flow, 5G Core, NAS Signalling, Tech Fundas

Lawful Intercept (LI) in 5G System

Lawful Interception 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. […]

June 17, 2021January 14, 2023 Author 5G, 5G Core, 5G Network Architectures, 6G

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 […]

May 18, 2021May 18, 2021 Author 3GPP Specification, 5G Call Flow, 5G Core, 5G NR, Tech Fundas

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 […]

April 19, 2021January 14, 2023 Author 5G Call Flow, 5G Core, 5G Network Architectures, Call Flow, NAS Signalling, New Radio, NR, Signaling, Tech Fundas, Voice Services

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