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TUTBB · 2026-09-17T07:59:56+0100

Go inside the 5G radio network: the NR grid, access and channels, massive MIMO, RAN architecture, Open RAN and mobility
What you'll learn

Read the NR resource grid: subcarrier spacing, slots and symbols, and how TDD shares time between uplink and downlink

Follow a phone from cell search and random access through the control and data channels to a scheduled packet

Explain array gain, beamforming, beam management and multi-user MIMO, and why massive MIMO is 5G's biggest capacity lever

Justify a CU, DU and RU split and the fronthaul budget it creates

Map the O-RAN architecture and judge an Open RAN deployment the way an operator would

Run a handover in your head, from the measurement that triggers it to the target cell taking over

Turn coverage, capacity and quality targets into numbers you can plan and defend
Requirements

Recommended: 5G Foundation, or a working understanding of the 5G system (RAN, core, spectrum)

No lab equipment or software needed
Description
This course contains the use of artificial intelligence.Most engineers can name the gNB. Far fewer can follow a phone from cell search to a scheduled packet, or explain why a beam stays locked on a moving user. This course is the step from knowing what the 5G radio network is to understanding how it actually works.
By the end you can read the NR resource grid, follow the access procedure channel by channel, reason about beams and splits, and put numbers on coverage and capacity that you can defend in a design review.
What the 7 sections cover

NR Air Interface I: Structure

NR Air Interface II: Access, Channels & the Stack

Massive MIMO & Beamforming

RAN Architecture & Splits

Open RAN

Mobility & Radio Procedures

RAN Planning & Performance
How it is taught
31 video lessons, about 3.4 hours in total, most between five and nine minutes. Every lesson is built around one idea and one diagram that you watch being assembled, with the real terms attached once the picture makes sense. Short on-screen checks let you test yourself as you go; they are for your own practice, not a grade. The first section is free to preview.
Background: Recommended: 5G Foundation, or a working understanding of the overall 5G system.
Who it suits: radio and RAN engineers early in their careers, LTE engineers moving to 5G NR, planning and optimisation engineers who want the NR fundamentals behind their tools, and solution or pre-sales engineers at vendors and operators.
This course is independent training. It is not affiliated with or endorsed by 3GPP, ETSI or the O-RAN Alliance. Names of organisations and specifications are used only to describe the technology.
Who this course is for

RAN and radio engineers who want a solid NR foundation

LTE engineers moving to 5G NR

Planning, optimisation and field engineers who want the theory behind their tools

Solution, pre-sales and product people at operators and vendors
Homepage

Code:

https://www.udemy.com/course/5g-ran-specialist

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5G RAN Specialist NR Air Interface, MIMO & RAN Design

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