Telco technical

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LTE Signalling

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Who Should Attend?

The course is addressed to network optimisers and technical staff requiring deeper understanding of LTE signalling.


Course Scope

  1. LTE/SAE architecture 
  2. LTE protocol architecture 
    • Introduction
    • LTE protocol layer 
    • Strata 
    • User plane 
    • Control plane 
    • EPS bearer and QoS
    • Radio interface structure 
    • 3GPP Technical Specification (3GPP TS) for LTE 
  3. Non-Access Stratum (NAS) 
    • NAS protocol architecture 
    • NAS functions 
    • NAS procedures 
    • UE mode of operation 
    • EMM 
    • ESM elementary procedures 
  4. Radio Resource Control (RRC) 
    • Introduction 
    • Radio interface architecture 
    • RRC states 
    • RRC procedures and messages 
    • System Information 
    • Mobility in idle mode 
    • Connection control 
    • Measurement control 
    • Connected mode mobility management 
    • RRC timers and constants 
  5. S1 Application Protocol (S1AP) 
    • S1 protocol architecture 
    • S1AP functions 
    • S1AP elementary procedures 
    • E-RAB management procedures 
    • Context management procedures 
    • Handover signalling 
    • Paging 
    • NAS transport 
    • Management procedures 
    • Other procedures 
  6. X2 Application Protocol (X2AP) 
    • X2 protocol architecture 
    • X2AP services 
    • X2AP functions 
    • X2AP elementary procedures 
    • Basic mobility procedures 
    • Global procedures 
  7. GPRS Tunneling Protocol -Control (GTP-C) 
    • GTP-C protocol architecture 
    • GTP-C procedures 
    • Mobility management 
    • CSFB 
    • Non-3GPP related access 
  8. LTE security 
    • Threats in LTE network 
    • EPS security features 
    • EPS key hierarchy 
    • Authentication and Key agreement 
    • EPS protection for signalling and user data 
  9. Packet Data Convergence Protocol (PDCP) 
    • PDCP protocol architecture 
    • PDCP services 
    • PDCP functions 
    • PDCP procedures 
    • PDU format 
  10. Radio Link Control (RLC) 
    • RLC protocol architecture 
    • RLC services 
    • RLC functions 
    • RLC procedures 
    • RLC transmission example 
    • PDU formats 
  11. Medium Access Control (MAC) 
    • MAC protocol architecture 
    • MAC services 
    • MAC functions 
    • MAC procedures 
    • PDU formats

Course Objectives

The course offers a complete understanding of all signalling protocols implemented in the Long Term Evolution (LTE) / System Architecture Evolution (SAE) technology. It presents the LTE/SAE architecture with its nodes, interfaces and protocol stacks and describes protocols through functions and services they provide. It focuses on the details of the radio access network (LTE) signalling, however the most important aspects of the core network (SAE) signalling are also discussed. Most important network procedures, such as signalling connection establishment, attach, service request and handover are discussed and presented on signalling diagrams. The course is based on the 3GPP Technical Specifications and hence is equipment vendor independent.



Successful completion of the LTE Air Interface course is required.  


Training Structure 

Three-day training divided into logical sessions.



Instructor-led training.

Excellent, knowledgeable trainer, open to communication.

Mr. Dmitrii Kropotov, Tele2 Russia

Regardless of technology I received theoretical and practical answers.

Mr. Kosta Pribić, T-Mobile Croatia

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

Mr. Mouin Al Saghir, Vivacell

Trainer is open for comments and discussion.

Ms. Natalya Nerubenko, Life Ukraine

More than excellent course!

Ms. Inessa Mijiferjyan, Vivacell

The course covers all the impacted areas.

Ms. Gratia Scanteie, Vodafone, RO

Excellent exercises!

Mr. Muhammad Ali, Mobilink Pakistan

Great teacher with deep knowledge and experience.

Mr. Philippe Wrzecionek, TATA

The training is completely excellent.

Mr. Philipp Korostelev, Beeline Moscow

Training was above expectations!

Mr. Ariel Haxhiu, Eagle Mobile, AL

A good approach to a complex problem.

Ms. Horia Catrinoiu, Vodafone RO

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

Ms. Olga Rudnicka, Tele2 Latvia

Very well organized training programmes.

Mr. Mihnea Teodorescu, Cosmote, RO

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

Mr. Arben Shabani, PTK Kosovo

Overwhelming knowledge and expertise. Interactive and enjoyable learning.

Mr. Ashish Shrestha, NCell Nepal

Experienced trainer. Excellent descriptions.

Mr. Ahmad Doar, Mobily, KSA

Deep and detailed topic analysis.

Mr. Mohamed Sabry, Vodafone Egypt

Excellent knowledge from the trainer.

Ms. Catherine Barman, Swisscom

Amazing, more than excellent, audience-oriented trainer.

Mr. Evgeniy Dmitriev, Astelit Ukraine

I can proudly recommend these courses for others as well.

Mr. Tarvo Jammer, Elisa Estonia

Very clear explanations.

Ms. Tatyana Krasyuk, Life Ukraine

Good direct connection between course material and real problems.

Mr. Alex Konstantopoulos, Cosmote, GR

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

Ms. Pinelopi Tragoudara, Vodafone GR

Everyone gets individual attention from the trainer.

Ms. Inga Tomsone, Tele2 Latvia

Professional, high-quality trainer.

Mr. Gagik Shatveryan, Vivacell

Course covers all important issues and presents relevant examples.

Mr. Mohamed Kamel, Vodafone Egypt

Trainer understands local market experience.

Mr. Andrew Sweetman, Wataniya

Trainers have passion to teach & impart knowledge.

Mr. Kanchan Chitrakar, Ncell Nepal

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

Ms. Ledia Meici, AMC Albania

Perfect course.

Mr. Arseniy Mazanik, Beeline Russia

Good logical structure of the course and explanation.

Ms. Elena Shevtsova, Beeline, KZ

Trainer was able to answer practical questions.

Mr. Daniel Krolikowski, Play Poland

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

Ms. Viktoriya Gusarova, Beeline RU

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

Mr. Omar El-Fiky, Vodafone Egypt

The course exceeded my expectations. Hats off!

Mr. Adnan Syed, Mobily

Very effective training methods.

Ms. Erjona Xhemali, AMC Albania

Good class notes and great examples.

Mr. Ghaffar Masood, Mobilink Pakistan

The whole course was very valuable.

Mr. Sayyid Ali, Dhiraagu Maldives

The training exceeded my expectations.

Ms. Irida Gjashta, AMC Albania

A lot of useful materials and knowledge.

Mr. Shukhrat Khaydar, UCell

A clear picture of GSM switching and signalling.

Ms. Anette Chale, mCel Mozambique

Unique training covering the most important areas of my work.

Mr. Eldar Mursaqulov, Azercell

The trainer is capable of answering all my questions.

Ms. Ana Gheorghe, Vodafone RO

Trainer understands local market experience.

Mr. Andrew Sweetman, Wataniya

Experienced trainer. Real cases with references to recommendations.

Mr. David Curkan, T-Mobile Croatia

This course will be very useful in my daily work.

Mr. Leopoldino Ferreira, Unitel Angola

Training provides useful methods to analyze real protocols.

Mr. Seema Karn, NCell Nepal

The best training ever.

Mr. Timur Zagretdinov, MTT Russia

Excellent course and instructor.

Mr. Nikolay Suetin, Beeline Russia

Really practical and very fruitful training.

Mr. Niroj Raya, NCell Nepal

Trainer adapted to the expectations of the audience.