LTE Signalling and Protocols

3 Day Course
Code PWS195

Book Now - 2 Delivery Methods Available:

Classroom Virtual Classroom Private Group - Virtual Self-Paced Online


LTE, Long Term Evolution, as defined as Release 8 through Release 10 of the 3GPP specifications, consists of the eUTRAN and the SAE /EPC. There are a considerable number of protocols and signalling messages being passed during system operation, between Uu and eUTRAN as well as between eUTRAN and EPC.

This three day course describes the overall protocol structure before focussing on specific protocols. The protocols examined include LTE to Ue protocols including PDCP, RRC, RLC and MAC, the inter-eNodeB protocol X2, the S1 protocol between the E-UTRAN and the evolved packet core and the evolved GTP for LTE.

This course is intended for telecom professionals working in the areas of LTE hardware and software development, LTE system engineering and in the testing and verification field.


On completion of this course the delegate will be able to:

  • Describer the use of S1-AP protocol for Non-Access Stratum Messaging
  • Decribe the Initital Attach Request message
  • Describe the use of GTP-C messaging between the MME & SGW
  • Understand the temporary identities issued by the MME
  • Understand the Temporary Radio Identities issued by the eNodeB
  • Understand support for Quality of Service in LTE/EPC
  • Understand the use of SrS interface
  • Understand Circuit Switched Fallback procedures
  • Explain the basic operation of VoLTE
  • Understand & explain Dedicated & Default EPS Bearers

Target Audience

This course is aimed at engineers working within the radio and core network environment, sales executives and support staff, as well as line managers and supervisors.


Hide all

An Overview of the Evolved Packet System (3 topics)

  • 3GPP Releases
  • Overview of the LTE Air Interface
  • Overview of the System Architecture Evolution (SAE)

LTE/SAE Protocol Architecture (7 topics)

  • Service Data Flow Concepts
  • An introduction to GPRS Tunneling Protocol (GTP)
  • GTP-C & GTP-U
  • Packet Scheduling & Packet Filtering Algorithms
  • Default EPS Bearer
  • Dedicated EPS Bearer
  • Quality of Service (QoS)

Non-Access Stratum - NAS Signalling (8 topics)

  • NAS Protocol States and Transitions
  • NAS Security
  • Integrity Protection
  • Non Access Stratum Protocols
  • Evolved Mobility Management - EMM
  • Evolved Session Management - ESM
  • Mobility Management across EMM States
  • EMM Procedures

Medium Access Control - MAC Protocol (8 topics)

  • MAC Architecture
  • Mapping of Logical Channels to Transport Channels
  • MAC Procedures
  • Random Access
  • Uplink Time Alignment
  • Downlink Data Transfer
  • Uplink Data Transfer
  • PDUs and Formats

Radio Link Control – RLC (9 topics)

  • RLC Structure
  • Transparent Mode - TM -Entity
  • Unacknowledged Mode - UM - Entity
  • Acknowledged Mode - AM - Entity
  • Functions
  • Procedures
  • Data Transfer
  • ARQ Procedures
  • Formats

Packet Data Convergence Protocol – PDCP (6 topics)

  • PDCP Structure & Entities
  • Functions
  • PDCP Procedures
  • Data Transfer
  • Re-establishment
  • Status Report

Radio Resource Control – RRC (7 topics)

  • RRC States & State Transitions
  • RRC Procedures
  • System Information
  • Connection Control
  • Inter-RAT Mobility
  • Measurements
  • PDU Formats

S1 Application Protocol (6 topics)

  • S1AP Services
  • S1AP Functions
  • S1AP Procedures
  • E-RAB Management
  • Context Management
  • Handover Signalling

X2 Application Protocol (5 topics)

  • X2AP Services
  • X2AP Functions
  • X2AP Procedures
  • Handover
  • Global Procedures: Load and Error Indication

Evolved GTP: GTPv2-C (6 topics)

  • GTP Stack
  • GTP Format
  • Messages
  • Path Management
  • Tunnel Management
  • Mobility Management

Interworking with Pre-Release 8 Networks (2 topics)

  • Signalling for UMTS Networks
  • Signalling for non-3GPP Networks


Delegates are expected to have a good understanding of Mobile communications systems, a fundamental understanding of the 3G LTE/EPC network and a basic IP network knowledge.

Scheduled Dates

Please select from the dates below to make an enquiry or booking.


Different pricing structures are available including special offers. These include early bird, late availability, multi-place, corporate volume and self-funding rates. Please arrange a discussion with a training advisor to discover your most cost effective option.

Code Location Duration Price May Jun Jul Aug Sep Oct
Virtual Classroom (London)
3 Days $2,940

What Our Customers Say

The training was delivered with a high level of expertise and excellence. Instructor was highly knowledgeable.”

Technical Trainer, Aviat Networks

Overall the course was really good, the trainer really understood the material and was very approachable.”

Customer Training Manager, Aviat Networks

Excellent course, informative and well-paced.”

CSE, Cisco

Course was very well outlined. Topics were great and bridged many gaps.”

System Engineer, Cable & Wireless

An excellent intro to video encoding & MPEG transport streams - I would definitely recommend it.”

Broadcast Engineer, Cisco

Definitely an excellent intro. Left me interested in learning more.”

Broadcast Engineer, Eircom

Excellent training course with real examples and practical classroom demonstrations.”

Transport Designer, Orange

Instructor knowledge and experience was excellent.”

Solutions Engineer, Akamai

Excellent course, very clear and well organised. Course content delivery was very good.”

Assistant Engineer, Dhiraagu

Very informative and appropriate.”

Network Support Technician, BT

Course PDF


Share this Course


Recommend this Course