Start your telecom journey with the fundamentals of wireless communication, radio frequency, and networking protocols. No prior telecom experience needed.

You cannot understand 5G without understanding what it evolved from. Master LTE architecture, air interface, key procedures, VoLTE, and see how every 4G concept maps directly to 5G.

This is where your core 5G journey begins. Understand the vision behind 5G, explore spectrum and bands, master the SA and NSA architectures, and learn the new identifier framework — SUPI, SUCI, S-NSSAI, and more.

Deep dive into the 5G NR radio layer — physical layer numerology, channels and signals, gNB architecture with CU/DU/RU splits, massive MIMO and beamforming, initial access procedures, and scheduling.

Deep dive into the 5G Core — Service-Based Architecture, all network functions (AMF, SMF, UPF, UDM, AUSF, PCF, NSSF, NEF, NWDAF), user plane architecture, PFCP, and the complete 5GC interface map.

Deep dive into 5G signaling procedures — Registration, PDU Session Management, Mobility & Handover, Paging & Service Request, De-registration, NAS error codes, and real-world troubleshooting with protocol log analysis.

Master the 5G QoS architecture — QoS flows, 5QI tables, GBR vs non-GBR, reflective QoS, PCF policy control, PCC rules, charging with CHF, and real-world policy design for services like video throttling and gaming.

Master 5G network slicing — S-NSSAI identifiers, NSSF slice selection, slice-specific NF instances, RAN/Core/Transport slicing, end-to-end orchestration, SLA monitoring, and real-world slice design for Industry 4.0 and healthcare.

Master 5G security — trust domains, SUPI/SUCI privacy, key hierarchy and derivation, 5G-AKA and EAP-AKA' authentication, NAS/AS security activation, slice isolation, SBA OAuth 2.0, SEPP roaming security, threat taxonomy, and lawful interception.

Deep-dive into Voice over New Radio — IMS architecture and SIP signaling, P-CSCF/I-CSCF/S-CSCF roles, IMS registration, VoNR mobile-originated and mobile-terminated call flows, QoS for voice (5QI=1), EPS Fallback, VoNR-to-VoLTE handover, video calling, and call-quality troubleshooting with MOS analysis.

Master the O-RAN architecture and its transformative impact on 5G — O-RAN Alliance vision, disaggregated O-CU/O-DU/O-RU architecture, open fronthaul (7.2x split), near-RT and non-RT RAN Intelligent Controllers, xApps and rApps, SMO framework, O-RAN interfaces (A1, E2, O1, O2), multi-vendor interoperability, real-world deployments, and hands-on xApp design.