Telco technical

& business courses

available worldwide

5G NR Air Interface

radio planning engineers
available worldwide
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Who Should Attend?

The course is addressed to network engineers involved in the radio network planning and optimisation process, managerial staff responsible for network operation as well as anybody who requires detailed knowledge on the 5G radio interface structure and function.


Course Scope

  1. 5G system architecture
    • Overall network architecture
    • Functional split between NG-RAN and 5GC
    • Nodes functions (gNB and ng-eNB, AMF, UPF, SMF, PCF, AF, NEF, AUSF, UDM, NSSF, NRF) and interfaces
    • NR-RAN architecture
    • 5G identities
  2. 5G protocol architecture
    • Introduction (protocols, SAP, OSI model)
    • NG-RAN protocol layer
    • Strata (NAS, AS)
    • User plane (SDAP, PDCP, RLC, MAX, PHY)
    • Control plane (RRC states, SRBs, system information, RRC connection establishment)
    • QoS (QoS concept, QoS flow, QoS profile, QoS architecture)
    • Radio interface structure
    • 3GPP TS for 5G
  3. NR physical layer structure
    • Frequency range and frequency band
    • Bandwidth part
    • Basic time unit
    • Numerology and need for them
    • Time domain structure
    • Antenna ports
    • Channel mapping (logical channels, transport channels, physical channels and physical signals)
  4. NR downlink physical layer
    • Cell cearch (SSB, P-SS, S-SS, PCI, PBCH)
    • PT-RS
    • DM-RS
    • CSI-RS
    • PDCCH (CCE, CORESE, PDCCH processing)
    • PDSCH (scrambling, modulation, layer mapping, antenna port mapping, mapping to virtual resource blocks, mapping to physical resource blocks)
  5. NR uplink physical layer
    • PT-RS
    • DM-RS
    • SRS
    • PUCCH
    • PUSCH
    • PRACH
  6. Physical layer procedures
    • Timing advance
    • Radio link monitoring
    • Uplink power control
    • Dual connectivity
    • Power headroom report
    • Random access procedure
    • HARQ operation
    • Massive MIMO and beamforming
    • Bandwidth part operation
  7. Mobility
    • Idle mode behaviour
    • Connected mode mobility (measurements, intra-RAT handover, inter-RAT handover)

Course Objectives

The 5G NR Air Interface course offers a complete understanding of the radio interface in 5G NR technology. A general characteristic of 5G is presented with its architecture, interfaces and protocols. The course focuses on the physical channels structure and their processing. It also presents physical layer procedures including random access, power control, HARQ related to downlink and uplink transmission, massive MIMO and beamforming. The algorithms and procedures of idle mode behaviour and handover process are also discussed.

The course is based on the 3GPP Release 15 version September 2018 and it is equipment vendor independent.



Participation in the LTE Air Interface training would be beneficial.  


Training Structure 

Three-day training divided into logical sessions.



Instructor-led training.

The training exceeded my expectations.

Ms. Irida Gjashta, AMC Albania

The best training ever.

Mr. Timur Zagretdinov, MTT Russia

Everyone gets individual attention from the trainer.

Ms. Inga Tomsone, Tele2 Latvia

Excellent knowledge from the trainer.

Ms. Catherine Barman, Swisscom

Trainers have passion to teach & impart knowledge.

Mr. Kanchan Chitrakar, Ncell Nepal

Experienced trainer. Real cases with references to recommendations.

Mr. David Curkan, T-Mobile Croatia

Overwhelming knowledge and expertise. Interactive and enjoyable learning.

Mr. Ashish Shrestha, NCell Nepal

Good logical structure of the course and explanation.

Ms. Elena Shevtsova, Beeline, KZ

Professional, high-quality trainer.

Mr. Gagik Shatveryan, Vivacell

Seminar entirely for Telecommunication operators. A lot of issues covered.

Ms. Pinelopi Tragoudara, Vodafone GR

Really practical and very fruitful training.

Mr. Niroj Raya, NCell Nepal

The whole course was very valuable.

Mr. Sayyid Ali, Dhiraagu Maldives

Regardless of technology I received theoretical and practical answers.

Mr. Kosta Pribić, T-Mobile Croatia

Trainer understands local market experience.

Mr. Andrew Sweetman, Wataniya

The course covers all the impacted areas.

Ms. Gratia Scanteie, Vodafone, RO

I feel like the trainer is the best professor and mentor one can have.

Ms. Ledia Meici, AMC Albania

Excellent methodology of teaching. Simple and easy to understand training.

Mr. Arben Shabani, PTK Kosovo

I can proudly recommend these courses for others as well.

Mr. Tarvo Jammer, Elisa Estonia

Deep and detailed topic analysis.

Mr. Mohamed Sabry, Vodafone Egypt

Trainer understands local market experience.

Mr. Andrew Sweetman, Wataniya

I am very impressed with the trainer's knowledge and experience.

Mr. Mouin Al Saghir, Vivacell

More than excellent course!

Ms. Inessa Mijiferjyan, Vivacell

Many different people from different operators can share their problems and ideas.

Mr. Omar El-Fiky, Vodafone Egypt

A lot of useful materials and knowledge.

Mr. Shukhrat Khaydar, UCell

This course will be very useful in my daily work.

Mr. Leopoldino Ferreira, Unitel Angola

Amazing, more than excellent, audience-oriented trainer.

Mr. Evgeniy Dmitriev, Astelit Ukraine

Unique training covering the most important areas of my work.

Mr. Eldar Mursaqulov, Azercell

Experienced trainer. Excellent descriptions.

Mr. Ahmad Doar, Mobily, KSA

Trainer is open for comments and discussion.

Ms. Natalya Nerubenko, Life Ukraine

Good class notes and great examples.

Mr. Ghaffar Masood, Mobilink Pakistan

Very well organized training programmes.

Mr. Mihnea Teodorescu, Cosmote, RO

I received a lot of useful information which I use in my work every day.

Ms. Viktoriya Gusarova, Beeline RU

Very effective training methods.

Ms. Erjona Xhemali, AMC Albania

Trainer adapted to the expectations of the audience.

Mr. Antoine Blanchet, Monaco Telecom

Trainer was able to answer practical questions.

Mr. Daniel Krolikowski, Play Poland

The course exceeded my expectations. Hats off!

Mr. Adnan Syed, Mobily

A good approach to a complex problem.

Ms. Horia Catrinoiu, Vodafone RO

Training was above expectations!

Mr. Ariel Haxhiu, Eagle Mobile, AL

Great teacher with deep knowledge and experience.

Mr. Philippe Wrzecionek, TATA

Very clear explanations.

Ms. Tatyana Krasyuk, Life Ukraine

Excellent, knowledgeable trainer, open to communication.

Mr. Dmitrii Kropotov, Tele2 Russia

The trainer is capable of answering all my questions.

Ms. Ana Gheorghe, Vodafone RO

Excellent course and instructor.

Mr. Nikolay Suetin, Beeline Russia

A clear picture of GSM switching and signalling.

Ms. Anette Chale, mCel Mozambique

The training is completely excellent.

Mr. Philipp Korostelev, Beeline Moscow

Course covers all important issues and presents relevant examples.

Mr. Mohamed Kamel, Vodafone Egypt

Training provides useful methods to analyze real protocols.

Mr. Seema Karn, NCell Nepal

Perfect course.

Mr. Arseniy Mazanik, Beeline Russia

Highly professional trainer with lots of practical experience. Friendly and open.

Ms. Olga Rudnicka, Tele2 Latvia

Good direct connection between course material and real problems.

Mr. Alex Konstantopoulos, Cosmote, GR

Excellent exercises!