Telco technical

& business courses

available worldwide

EPS/LTE System Overview

network engineers
available worldwide
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Who Should Attend?

The course is intended for EPS/LTE technical staff and management.


Course Scope

  1. Introduction.
    • 3GPP Mobile Network Evolution.
    • LTE Performance.
  2. Network Architecture.
    • EPC: MME, S-GW, P-GW, HSS, EIR, PCRF, Interfaces. 
    • E-UTRAN: eNB, S1 and X2 interfaces.
    • Interworking with GERAN/UTRAN: SGSN, S3, S4 and S12 Interfaces. 
    • HPLMN Routed Traffic and Local Breakout International Roaming Scenarios. 
    • Geographical Network Structure, Identity Numbers.
  3. OFDMA and SC-FDMA.
    • Overview of Multiple Access Techniques Used in 3GPP RANs. 
    • OFDMA Fundamentals.
    • OFDMA Transmitter/receiver.
    • OFDMA Advantages/disadvantages.
    • SC-FDMA Fundamentals.
    • OFDMA and SC-FDMA Comparison.
  4. E-UTRAN.
    • FDD/TDD. 
    • Inter-Cell Interference. 
    • Basic Transmission Structures and Parameters. 
    • MIMO.
    • Channels.
    • Transmission Process.
    • Air Interface Protocol Stack.
  5. EPC.
    • MME in pool.
    • Signalling Transport - SIGTRAN.
    • User Data Transport – GTP.
    • Database Communication – Diameter.
    • Default and Dedicated EPS Bearer.
    • QoS.
  6. PCC.
    • Policy and Charging Control.
    • PCRF in LTE.
    • Interworking Between EPS/LTE and IMS/VoLTE/RCS via PCRF.
  7. Traffic Cases.
    • EPS Attach.
    • TA Update.
    • Service Request.
    • Connection Release.
    • Dedicated Bearer Activation.
    • UE Requested Bearer Resource Allocation.
    • Intra-LTE Handover.
    • Inter-RAT Handover.
    • ISR.
  8. Security.
    • Authentication & Key Agreement.
    • Key Hierarchy.
    • Ciphering.
    • Integrity Protection.
    • Key Chaining.
  9. SON.
    • Self Organising/Optimising Network – Procedure Examples: 
      • eNodeB Self Configuration.
      • Interference Avoidance.
      • Handover Optimisation.
      • Load Optimisation.
  10. CSFB & SMSoSGs.
    • SGs Interface.
    • Combined EPS/IMSI Attach and TA/LA Update.
    • CSFB MT/MO Call.
    • SMS MT/MO.
  11. IMS Services.
    • VoLTE and RCS Service Profile.
    • LTE – VoLTE Interworking.
    • IMS Architecture and Principles.
    • IMS Registration.
    • ASs Examples.
    • VoLTE Call.
    • SMS.
    • SR-VCC, 
    • Chat.
  12. A-LTE Overview.
    • CA.
    • MIMO.
    • CoMP.
    • eICIC and HetNet.
    • Relay Node.

Course Objectives

This training is an excellent choice for engineers who already have experience with previous generations of mobile technology and have begun to work with the new EPS/LTE system. This training course maintains an appropriate balance between the topics related to E-UTRAN (radio part), EPC (CN part) and LTE based teleservices, allowing the participants to understand the system as a whole. This training also provides the required background knowledge needed to fully participate in more advanced training sessions which focus on particular subsystem or network element issues.



The participants should have general technical telecommunications/computer science knowledge at university level. Knowledge of GSM/UMTS GPRS services is recommended.


Training Structure

Three-day training divided into logical sessions.



Instructor-led training. Exercises and trace analysis.

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

Ms. Olga Rudnicka, Tele2 Latvia

The course exceeded my expectations. Hats off!

Mr. Adnan Syed, Mobily

Very effective training methods.

Ms. Erjona Xhemali, AMC Albania

Trainer is open for comments and discussion.

Ms. Natalya Nerubenko, Life Ukraine

The trainer is capable of answering all my questions.

Ms. Ana Gheorghe, Vodafone RO

The training exceeded my expectations.

Ms. Irida Gjashta, AMC Albania

Training was above expectations!

Mr. Ariel Haxhiu, Eagle Mobile, AL

Perfect course.

Mr. Arseniy Mazanik, Beeline Russia

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

Ms. Viktoriya Gusarova, Beeline RU

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

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

Ms. Ledia Meici, AMC Albania

Excellent knowledge from the trainer.

Ms. Catherine Barman, Swisscom

A lot of useful materials and knowledge.

Mr. Shukhrat Khaydar, UCell

Really practical and very fruitful training.

Mr. Niroj Raya, NCell Nepal

Good direct connection between course material and real problems.

Mr. Alex Konstantopoulos, Cosmote, GR

Experienced trainer. Real cases with references to recommendations.

Mr. David Curkan, T-Mobile Croatia

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

Ms. Pinelopi Tragoudara, Vodafone GR

More than excellent course!

Ms. Inessa Mijiferjyan, Vivacell

This course will be very useful in my daily work.

Mr. Leopoldino Ferreira, Unitel Angola

Unique training covering the most important areas of my work.

Mr. Eldar Mursaqulov, Azercell

Excellent exercises!

Mr. Muhammad Ali, Mobilink Pakistan

Overwhelming knowledge and expertise. Interactive and enjoyable learning.

Mr. Ashish Shrestha, NCell Nepal

Trainer was able to answer practical questions.

Mr. Daniel Krolikowski, Play Poland

Professional, high-quality trainer.

Mr. Gagik Shatveryan, Vivacell

Everyone gets individual attention from the trainer.

Ms. Inga Tomsone, Tele2 Latvia

Excellent course and instructor.

Mr. Nikolay Suetin, Beeline Russia

Very clear explanations.

Ms. Tatyana Krasyuk, Life Ukraine

Trainers have passion to teach & impart knowledge.

Mr. Kanchan Chitrakar, Ncell Nepal

Trainer understands local market experience.

Mr. Andrew Sweetman, Wataniya

Regardless of technology I received theoretical and practical answers.

Mr. Kosta Pribić, T-Mobile Croatia

Training provides useful methods to analyze real protocols.

Mr. Seema Karn, NCell Nepal

Excellent, knowledgeable trainer, open to communication.

Mr. Dmitrii Kropotov, Tele2 Russia

Trainer adapted to the expectations of the audience.

Mr. Antoine Blanchet, Monaco Telecom

Great teacher with deep knowledge and experience.

Mr. Philippe Wrzecionek, TATA

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

Mr. Omar El-Fiky, Vodafone Egypt

Good logical structure of the course and explanation.

Ms. Elena Shevtsova, Beeline, KZ

The best training ever.

Mr. Timur Zagretdinov, MTT Russia

Course covers all important issues and presents relevant examples.

Mr. Mohamed Kamel, Vodafone Egypt

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

Mr. Mouin Al Saghir, Vivacell

Amazing, more than excellent, audience-oriented trainer.

Mr. Evgeniy Dmitriev, Astelit Ukraine

Deep and detailed topic analysis.

Mr. Mohamed Sabry, Vodafone Egypt

The whole course was very valuable.

Mr. Sayyid Ali, Dhiraagu Maldives

Good class notes and great examples.

Mr. Ghaffar Masood, Mobilink Pakistan

The training is completely excellent.

Mr. Philipp Korostelev, Beeline Moscow

Experienced trainer. Excellent descriptions.

Mr. Ahmad Doar, Mobily, KSA

Trainer understands local market experience.

Mr. Andrew Sweetman, Wataniya

A good approach to a complex problem.

Ms. Horia Catrinoiu, Vodafone RO

A clear picture of GSM switching and signalling.

Ms. Anette Chale, mCel Mozambique

Very well organized training programmes.

Mr. Mihnea Teodorescu, Cosmote, RO

The course covers all the impacted areas.