EPS Fallback Mechanism in 5G Standalone Networks

Ralf Kreher explained EPS Fallback mechanism in his post earlier, which is still quite popular. This post contains couple of videos that also explain this procedure. 

The first is a very short and simple tutorial from Mpirical, embedded below:

The second is a slightly technical presentation explaining how 5G system can redirect the 5G VoNR capable device to the 4G system to continue for IMS based VoLTE voice call.

Related Posts:

• The 3G4G Blog: EPS Fallback in 5G Standalone Deployments
• The 3G4G Blog: IP Multimedia Subsystem (IMS) Support for Service Based Architecture (SBA)
• The 3G4G Blog: Two Types of SMS in 5G
• The 3G4G Blog: 5G User Plane Redundancy
• The 3G4G Blog: Network Slicing using User Equipment Route Selection Policy (URSP)
• The 3G4G Blog: Voice over New Radio (VoNR) Establishment and Release between NG RAN and 5G Core
• The 3G4G Blog: A quick starter on 4G voice (for beginners) 

Voice over New Radio (VoNR) Establishment and Release between NG RAN and 5G Core

In this video I explain how QoS Flows for VoNR are established and released especially on N2 reference point between 5G Core and NG RAN.

The pervious video about generic aspects of "QoS Flow Establishments in 5G Standalone RAN and Core" you will find in the first link of the Related Posts listed below:

Related Posts: 

• The 3G4G Blog: QoS Flow Establishments in 5G Standalone RAN and Core
• The 3G4G Blog: Anomaly Detection and other AI Algorithms in RAN Optimization
• The 3G4G Blog: How to Identify Network Slices in NG RAN
• The 3G4G Blog: Network Slicing in NG RAN
• The 3G4G Blog: Network Slicing Tutorials and Other Resources
• The 3G4G Blog: Artificial Intelligence (AI) / Machine Learning (ML) in 5G Challenge by ITU
• The 3G4G Blog: Conditional Handover (Rel. 16) Explained
• The 3G4G Blog: UE Radio Capability Signaling Optimization (RACS) in Rel. 16