Telco technical

& business courses

available worldwide

5G System Overview

network engineers
available worldwide
Ask for offer

Who Should Attend?

This training is an ideal selection for engineers who have experience with previous generations of mobile technology and are beginning to work with the new 5G system. It maintains a proper balance among topics related to 5G CN, NG-RAN (the radio part), and 5G-based teleservices, offering participants the chance to understand the system comprehensively. Additionally, this training delivers the necessary background knowledge required to engage fully in more advanced training sessions that focus on specific subsystems or network element issues.


Course Scope

  1. Introduction.
    • 3GPP Mobile Network Evolution.
    • 5G System Performance.
    • Technical and Business Use Cases.
  2. Architecture.
    • 5GS Service Based and Reference Point Architecture: UDM, UDR, UDSF, 5G-EIR, AMF, SMF, UPF, Multiple Packet Session Anchors, PCF, AF, NEF, NEF, NWDAF, N3IWF, NRF,
    • Session and Service Continuity,
    • SMS over NAS,
    • IMS/VoLTE Support ,
    • Interworking with LTE/EPC,
    • Identifiers: SUPI/IMSI, SUCI, PEI/IMEI, 5G-GUTI, GPSI/MSISDN/external identifier, Internal-Group Identifier, External Group Identifier, DNN, LADN, DNAI,
    • International Roaming,
    • GTPv1-U tunnelling,
    • Protocol Stacks.
  3. PDU Sessions and QoS.
    • DU Session Types,
    • QoS Flows,
    • QoS Rules & Packet Detection Rules (PDRs),
    • QoS profile: 5QI, non-GBR, GBR and delay critical GBR characteristics; ARP, RQA, notification control,
    • UE-AMBR & Session-AMBR,
    • UPF traffic processing: Forwarding Action Rules, QoS Enforcement Rules, Usage Reporting Rules,
    • Support for Edge Computing.
  4. Network Slicing & Network Virtualisation
    • Network Slicing Concept,
    • UE’s Multiple Network Slices, S-NSSAI and NSSAI,
    • Network Slice Instances (NSIs),
    • Subscription Parameters & UE Configuration, AMF Selection,
    • PDU Session Establishment and SMF Selection
    • Network Function Virtualisation (NFV),
    • RAN Virtualisation.
  5. Traffic Cases.
    • TA/TA List Management,
    • Selective (De)activation of U-plane Connections,
    • UE Reachability in CM-CONNECTED: RAN-based Notification Area (RNA) and Paging,
    • MICO Mode,
    • Procedures: Registration, UE Triggered Service Request, Network Triggered Service Request, AN Release, PDU Session Establishment, SMS, Xn-based Handover, N2 based Handover, N26-based 5GS to EPS Handover.
  6. Security.
    • User Identity Confidentiality.
    • Authentication and Key Agreement (AKA).
    • NAS, RRC and User Data Ciphering and Integrity Protection, Mobile Equipment Identification.
  7. NG-RAN
    • Separation of gNB-CU and gNB-DU,
    • Separation of gNB-CU-CP and gNB-CU-UP,
    • F1 and E1 Interfaces,
    • Fronthaul Options (CPRI, eCPRI, nFAPI),
    • F1/E1 procedures: F1 Startup and Cells Activation, gNB-CU-UP E1 Setup, UE Initial Access, Inter-gNB-DU Mobility, RRC-CONNECTED to RRC-INACTIVE State Transition, RRC-INACTIVE to other RRC States Transition.
  8. NR
    • Frequency Bands (FR1/FR2),
    • Carrier Aggregation(CA) & Supplementary Uplink (SUL),
    • OFDMA & Multiple Numerologies,
    • Channel Bandwidth, Bandwidth Part (BWP)
    • FDD/TDD, Dynamic TDD,
    • Resource Structure: ARFCN, Frame Structure, Resource Element (RE) & Resource Block (RB),
    • Cell Search & SSB blocks,
    • Reference Signals,
    • MIMO: Digital and Analogue Beamforming, Beam Sweeping,
    • Resource Allocation Methods.
  9. Multi-RAT Dual Connectivity.
    • MR-DC types: NR-DC, EN-DC, NGEN-DC, NE-DC,
    • Data Bearer Types: MCG, SCG and Split Bearer,
    • Signalling Bearers,
    • Traffic Cases.

Course Objectives

This training is an excellent choice for engineers who have already gained experience with previous generations of mobile technology and begun to work with the new 5G system. Training maintains an appropriate balance between the topics related to 5G CN, NG-RAN (radio part) and 5G based teleservices, giving the opportunity to understand the system as a whole. This training also provides required background knowledge needed to fully participate in more advanced training sessions focused on particular subsystem or network element issues.



The participants should have general technical telecommunications/computer science knowledge on a degree level. Knowledge about LTE is recommended.


Training Structure

Four-day training divided into logical sessions.



Instructor-led training.Lectures and multimedia presentations.

Professional, high-quality trainer.

Mr. Gagik Shatveryan, Vivacell

Experienced trainer. Real cases with references to recommendations.

Mr. David Curkan, T-Mobile Croatia

Everyone gets individual attention from the trainer.

Ms. Inga Tomsone, Tele2 Latvia

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

Ms. Ledia Meici, AMC Albania

Experienced trainer. Excellent descriptions.

Mr. Ahmad Doar, Mobily, KSA

A lot of useful materials and knowledge.

Mr. Shukhrat Khaydar, UCell

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

Ms. Pinelopi Tragoudara, Vodafone GR

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

Ms. Olga Rudnicka, Tele2 Latvia

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

Mr. Mouin Al Saghir, Vivacell

Great teacher with deep knowledge and experience.

Mr. Philippe Wrzecionek, TATA

Regardless of technology I received theoretical and practical answers.

Mr. Kosta Pribić, T-Mobile Croatia

Good direct connection between course material and real problems.

Mr. Alex Konstantopoulos, Cosmote, GR

The training exceeded my expectations.

Ms. Irida Gjashta, AMC Albania

The training is completely excellent.

Mr. Philipp Korostelev, Beeline Moscow

Unique training covering the most important areas of my work.

Mr. Eldar Mursaqulov, Azercell

A good approach to a complex problem.

Ms. Horia Catrinoiu, Vodafone RO

Excellent knowledge from the trainer.

Ms. Catherine Barman, Swisscom

Overwhelming knowledge and expertise. Interactive and enjoyable learning.

Mr. Ashish Shrestha, NCell Nepal

Very well organized training programmes.

Mr. Mihnea Teodorescu, Cosmote, RO

Very effective training methods.

Ms. Erjona Xhemali, AMC Albania

Training provides useful methods to analyze real protocols.

Mr. Seema Karn, NCell Nepal

Deep and detailed topic analysis.

Mr. Mohamed Sabry, Vodafone Egypt

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

Mr. Omar El-Fiky, Vodafone Egypt

Excellent course and instructor.

Mr. Nikolay Suetin, Beeline Russia

Good class notes and great examples.

Mr. Ghaffar Masood, Mobilink Pakistan

The trainer is capable of answering all my questions.

Ms. Ana Gheorghe, Vodafone RO

The best training ever.

Mr. Timur Zagretdinov, MTT Russia

Amazing, more than excellent, audience-oriented trainer.

Mr. Evgeniy Dmitriev, Astelit Ukraine

Course covers all important issues and presents relevant examples.

Mr. Mohamed Kamel, Vodafone Egypt

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

I can proudly recommend these courses for others as well.

Mr. Tarvo Jammer, Elisa Estonia

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

Mr. Arben Shabani, PTK Kosovo

Good logical structure of the course and explanation.

Ms. Elena Shevtsova, Beeline, KZ

Trainer understands local market experience.

Mr. Andrew Sweetman, Wataniya

More than excellent course!

Ms. Inessa Mijiferjyan, Vivacell

Trainer is open for comments and discussion.

Ms. Natalya Nerubenko, Life Ukraine

Excellent exercises!

Mr. Muhammad Ali, Mobilink Pakistan

The course exceeded my expectations. Hats off!

Mr. Adnan Syed, Mobily

Training was above expectations!

Mr. Ariel Haxhiu, Eagle Mobile, AL

A clear picture of GSM switching and signalling.

Ms. Anette Chale, mCel Mozambique

The whole course was very valuable.

Mr. Sayyid Ali, Dhiraagu Maldives

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

Ms. Viktoriya Gusarova, Beeline RU

Really practical and very fruitful training.

Mr. Niroj Raya, NCell Nepal

Perfect course.

Mr. Arseniy Mazanik, Beeline Russia

Excellent, knowledgeable trainer, open to communication.

Mr. Dmitrii Kropotov, Tele2 Russia

This course will be very useful in my daily work.

Mr. Leopoldino Ferreira, Unitel Angola

Trainer understands local market experience.

Mr. Andrew Sweetman, Wataniya

Very clear explanations.

Ms. Tatyana Krasyuk, Life Ukraine

The course covers all the impacted areas.

Ms. Gratia Scanteie, Vodafone, RO

Trainers have passion to teach & impart knowledge.