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Certification Courses 5G FoundationCore network functions — a guided tour

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Core network functions — a guided tour

Module 3 · 5G System Architecture

Inside the RAN: the gNB Interfaces & reference points: N1–N6, N9, Xn

34 lessons · 7 interactive labs

Module 1 · The 5G Big Picture

1What 5G actually changes — the 60-second network tourFree preview
2The use-case triangle: eMBB, URLLC, mMTC — and what shippedRequires subscription
3Who makes the rules: 3GPP, ITU, GSMA, O-RAN AllianceRequires subscription
4How to study this course (15 min/day method) + your first Signal CheckRequires subscription
Match the Use Case to Its SliceInteractive lab

Module 2 · Cellular Foundations

5Cells, sectors and frequency reuseRequires subscription
6Spectrum: bands, licensing, FDD vs TDDRequires subscription
71G → 4G: what each generation solvedRequires subscription
8LTE & EPC in one diagram — the platform 5G extendsRequires subscription
9The four limits 5G had to breakRequires subscription
Frequency or Time?Interactive lab

Module 3 · 5G System Architecture

10The three domains: RAN, Core, Data NetworkRequires subscription
11NSA vs SA — EN-DC and the deployment options that shippedRequires subscription
12Inside the RAN: the gNBRequires subscription
Core network functions — a guided tourRequires subscription
14Interfaces & reference points: N1–N6, N9, XnRequires subscription
Build the 5G NetworkInteractive lab

Module 4 · Service-Based Architecture

15From boxes to services: SBA in one diagramRequires subscription
16SBI mechanics: HTTP/2, JSON and the NRFRequires subscription
17Mobility & session control: AMF and SMFRequires subscription
18Subscriber, policy & exposure: AUSF, UDM, PCF, NSSF, NEFRequires subscription
19CUPS and the UPF — the user-plane workhorseRequires subscription
20Cloud-native by design — why it matters operationallyRequires subscription
Register the CoreInteractive lab

Module 5 · Radio & Spectrum Fundamentals

21FR1 and FR2: real-world spectrum strategyRequires subscription
22OFDM, intuitively — subcarriers without the mathRequires subscription
23Modulation & coding: QAM, MCS, HARQRequires subscription
24MIMO & beamforming — first passRequires subscription
25Coverage vs capacity: the eternal trade-offRequires subscription
Ride the Link: SINR to ModulationInteractive lab

Module 6 · Connecting to the Network

26Identities: SUPI, SUCI, 5G-GUTI — privacy by designRequires subscription
27RRC states: idle, inactive, connectedRequires subscription
28Registration, step by stepFree preview
29PDU sessions & QoS flows — your data's contractRequires subscription
30What happens when you load a page — the end-to-end journeyRequires subscription
Register the PhoneInteractive lab

Module 7 · Foundation Consolidation

31Network slicing — first lookRequires subscription
325G myths vs measured realityRequires subscription
33The full-system recap: the big diagram, rebuilt liveRequires subscription
34Exam technique + what Certificate 2 unlocksRequires subscription
Trace the DownlinkInteractive lab

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