The 5G Core: Architecture and Functions Explained: BSS/OSS Integration, 5G Roaming and Service‑Based Architecture Practical Guide Kindle Edition

The 5G Core (5GC): Architecture and Functions ExplainedA Practical Guide to 5G Core Networks, Service-Based Architecture, and Integration with BSS/OSSThe 5G Core is not just an evolution of 4G. It is a complete reinvention. Built on service-based architecture, cloud-native principles, and network slicing, the 5GC transforms telecommunications networks from connectivity providers to service enablers. Yet for many professionals, understanding this new core remains a challenge.This book bridges the gap. Written in an accessible, step-by-step style by a telecom industry veteran with over 20 years of experience, it takes you from absolute fundamentals to advanced concepts. Whether you are migrating from 4G or learning 5G from scratch, you will gain a complete mental model of how the 5G Core works. You will explore how 5GC integrates with BSS for monetization, with OSS for operations, and how roaming functions across 4G and 5G networks. By the end, you will understand not just the architecture, but how it all connects to real-world deployment and business value.What You Will DiscoverCore ArchitectureService Based Architecture (SBA) explained in simple termsDeep dives into major Network functions: AMF, SMF, UPF, PCF, NRF, UDM, AUSF, NSSF, NEF, and CHFComplete call flows for registration and PDU session establishmentHow Network Slicing enables customized services for different use casesNetwork Operations5G identifiers, subscription management, and protocolsDedicated chapter on integration with OSSDedicated chapter on 5G RoamingInterworking and BillingDedicated chapter on integration with BSSInterworking with 4G networksCharging and billing for roaming, including TAP and BCE settlementWho This Book Is ForSolutions Architects: A complete mental model of how 5GC components fit together and integrate with BSS/OSSProduct Managers: Understanding of what 5G capabilities can be monetized and howBSS/OSS Professionals: Clear guidance on integrating business and operations systems with 5GCNetwork Engineers: The ability to configure and troubleshoot 5GC functions with confidenceStudents: A solid foundation in 5G technology that bridges theory and practiceAnyone moving from 4G to 5G: A clear understanding of what changed and whyAbout the AuthorRajarshi Pathak is an AI practitioner with over 20 years of deep domain expertise in telecommunications. He has designed and delivered subscription management, usage monetization, and integrated OSS/BSS solutions for Mobile, Broadband, IPTV, Pay TV, and Hybrid networks across Europe, North America, and Asia Pacific. He is the founder of www.RajarshiPathak.com and a speaker at India Mobile Congress 2025. Read more