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所在平台: Udemy |
课程主页: https://www.udemy.com/course/csfb-in-4g-networks/
课程评论：没有评论
课程名称：CSFB在4G网络中的全面电路切换回退 概述：该课程旨在帮助学员掌握电路切换回退（CSFB）在4G网络中的基本概念。CSFB是一种技术，使LTE设备能够在语音通话中切换到传统的2G/3G网络。作为唯一的此类课程，本课程提供了对CSFB架构、信令流程及实际应用的全面深入探索。学员将学习CSFB的工作原理，包括呼叫设置、切换过程和位置更新，了解关键网络元素如MME、MSC、eNodeB和HSS在回退过程中的角色，并学习AT&T、Vodafone和中国移动等运营商如何实施CSFB，以及在呼叫设置延迟、分页失败和质量不稳定等常见问题上的故障排除策略。通过实际的Wireshark信令消息分析和案例研究，您将获得优化CSFB流程、解决常见问题，以及提升4G LTE语音服务网络性能所需的知识和技能。 课程内容包括： 1. LTE语音选项概述，比较CSFB和VoLTE。 2. CSFB架构的高层解释及其工作原理。 3. 关键网络节点（如UE、eNodeB、MME、MSC和HSS）在CSFB中的角色。 4. SGsAP接口和协议的介绍及其功能。 5. SGsAP信令消息的Wireshark分析，包括位置更新请求、分页请求等。 6. CSFB接入和呼叫流程的详细说明。 7. 解决常见CSFB信令问题的故障排除技巧。 8. 实际CSFB实施案例及性能指标分析。 适合对象：电信工程师和网络专业人士，准备进入移动网络领域的学生及专业人士，任何希望深入了解CSFB在4G网络中应用的人。 加入本课程，全面掌握CSFB，从基础知识到高级实施策略，提升您的移动网络语音服务知识水平！
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!
