CSFB in 4G Networks – Comprehensive Circuit Switch Fallback

Learn everything about 4G CSFB, including architecture, signaling flows, real-world implementations in mobile networks
What you'll learn:
CSFB and VoLTE concepts and differences
CSFB architecture and components overview
Call setup and handover processes in CSFB
CSFB signaling and protocols explained
Troubleshooting CSFB signaling issues
CSFB to VoLTE transition and real-world cases
Requirements:
Basic understanding of mobile networks
Familiarity with LTE and 3G/2G technologies
No prior experience with CSFB required
Willingness to learn network signaling concepts
Description:
Are you looking to master the essential concepts of Circuit Switch Fallback (CSFB) in 4G networks? This course provides an in-depth exploration of CSFB, the technology that allows LTE devices to switch to legacy 2G/3G networks for voice calls. As the only course of its kind, it offers a comprehensive, step-by-step guide to understanding CSFB architecture, signaling flows, and real-world applications.In this course, you will dive deep into the workings of CSFB, including call setup, handover processes, and location updates. We'll cover key network elements such as MME, MSC, eNodeB, and HSS, explaining their roles in the fallback process. Learn how operators like AT&T, Vodafone, and China Mobile implemented CSFB, along with real-world troubleshooting strategies for issues like call setup delays, paging failures, and inconsistent QoS.By the end of this course, you will have the knowledge and skills to optimize CSFB processes, troubleshoot common issues, and enhance network performance for voice services on 4G LTE networks. With hands-on Wireshark analysis of signaling messages and real-world case studies, this course ensures you are ready to handle the complexities of CSFB in today's mobile networks.What You Will Learn:Complete understanding of 4G CSFB architecture and call flows.How to capture and analyze CSFB signaling messages with Wireshark.Common issues in CSFB signaling and practical troubleshooting techniques.Real-world CSFB implementations and performance optimization from top operators.Deep insights into the roles of MME, MSC, HSS, eNodeB, and more in the fallback process.Who Should Enroll:Telecommunications engineers and network professionals.Students and professionals preparing for a career in mobile networks.Anyone looking to deepen their understanding of CSFB in 4G networks.Course Content:Section 1: LTE Voice OptionsOverview of LTE Voice Options: CSFB vs. VoLTECircuit Switched Fallback (CSFB): What It Is and How It WorksAdvantages and Disadvantages of CSFBVoice over LTE (VoLTE): Technology, Functionality, and BenefitsComparison of CSFB vs. VoLTE: Call Setup Time, Voice Quality, Data ServicesSection 2: CSFB ArchitectureHigh-Level Explanation of CSFB ArchitectureHow CSFB Works (High-Level Overview)Section 3: Key Network Nodes & Their Roles in CSFBUE (User Equipment): Capabilities and ISR SupporteNodeB: Role and Function in CSFB ProceduresMME: Role in Managing Fallback and SignalingMSC: Handling Voice Calls and SMS in CSFBHSS: Managing Subscriber Data and Location UpdatesSection 4: SGsAP Interface and ProtocolWhat is the SGs Interface and Its FunctionsSGsAP Protocol Stack (L1, L2, IP, SCTP, SGsAP) LayersExample of the Protocol Stack in Action: Call Flow and SignalingSection 5: SGsAP Signaling Messages (With Wireshark Analysis)SGsAP Location Update Request (Wireshark Included)SGsAP Location Update Accept (Wireshark Included)SGsAP Paging Request (Wireshark Included)SGsAP Paging Response (Wireshark Included)SGsAP Service Request (Wireshark Included)Section 6: CSFB Attach and Call ProceduresCSFB Attach Procedures ExplainedCSFB Mobile-Originated (MO) Call FlowCSFB Mobile-Terminated (MT) Call FlowDetach Procedures in CSFBTA/LA Update Procedures: Signaling and TriggersSection 7: Troubleshooting Common CSFB Signaling IssuesCall Setup Delay: Causes and TroubleshootingCall Drops During Fallback: Causes and SolutionsFailed Location Updates: Causes and SolutionsPaging Failures: Causes and TroubleshootingInconsistent QoS Parameters: Troubleshooting for Better Call QualitySection 8: Real-World CSFB Implementations and Performance MetricsAT&T's CSFB Implementation: Challenges and SolutionsVodafone's CSFB Implementation: Optimizing High-Mobility EnvironmentsChina Mobile's CSFB Implementation: Handling Large-Scale User BasesPerformance Metrics: Call Setup Time, Success Rates, and User FeedbackThis course is your one-stop solution for mastering CSFB, from the fundamentals to advanced implementation strategies. Join today and take your knowledge of mobile network voice services to the next level!
Who this course is for:
Telecom engineers wanting to learn CSFB
Students in telecommunications studies
Mobile network operators and technicians
Engineers preparing for VoLTE implementation
Homepage
https://www.udemy.com/course/csfb-in-4g-networks/