4G " Long Term Evolution (LTE) Air Interface Etisalat Academy
  • Locations: Dubai
  • Duration: 3 Days

Course details

Long Term Evolution (LTE) is the new 3GPP standard for wireless broad band data services. It comprises E-UTRA network; which uses OFDMA technology and EPC (Evolved Packet Core), an all-IP core network. This framework allows the migration of 3GPP system towards packet-optimized system that supports multiple RATs (Radio yAccess Technologies), higher-data-rates and lower-latencies. Also it provides an evolutionary path for 3GPP and non-3GPP legacy technologies.

This course provides an in-depth discussion of LTE air interface. It begins with an overview of LTE/E-UTRAN network architecture and protocols and introduces OFDMA, the key technology of LTE, and then discusses the DL and UL channels, signals and operations. This is followed by a comprehensive discussion of MAC, RLC and PHY layers of the LTE air interface.

Expected Rccompllshmerits

  • Describe network architecture evolution OFDM Basics
  • Explain OFDM Concepts
  • Understand in details the physical layer and operations in mobility and idle mode
  • Describe Ml MO in LTE
  • Understand MAC and RLC in details
  • Study LTE Packet Data Convergence Protocol (PDCP) Layer
  • Explain the details of RRC layer and operations

Course Outline

Evolved Packet System Network Architecture ft Protocols 

  • Describe network architecture evolution
  • Explain Evolved Packet System (EPS) network entities and interfaces 
  • Describe EPS user and control plane protocol stacks 
  • Iden tify basic EPS Security aspects
  • Explain mobility management, session management, and IP connectivity aspects 
  • Explain EPS QoS architecture and principles

OFDM basics

  • Explain OFDM basic concepts 
  • OFDM A, multipath and cyclic prefix 
  • Understand OFDM and SC-FDMA

E-UTRA Essentials

  • Identify the main E-UTRA Air Interface capabilities 
  • Air Interface peak data rates and UE categories
  • Understand E-UTRA Downlink and Uplink time and frequency organization 
  • Define the components of the E-UTRA UL/DL resource grid 
  • DL/UL scheduling and interference management

E-UTRA Downlink (DL) Channels, signals ft operation 

  • Discuss E-UTRA DL physical channels and signals 
  • Discuss the initial acquisition procedure
  • Describe DL shared channel operation
  • Describe the role of DL control channels in DL operation 
  • Understand how channel feedback information is reported by the UE in the UL Describe DL HARQ operation 
  • Describe DL data transfer modes 
  • Ml MO in LTE

E-UTRA Uplink (UL) Channels, signals and operation

  • Describe E-UTRA UL channels and channel mapping onto time/frequency resources 
  • Describe E-UTRA UL operations 
  • Comparison between LTE and HSPA operations

LTE Physical Layer

  • Describe frame, subframe, and slot structure in Downlink and Uplink
  • Describe resource block and resource elements
  • Describe physical layer processing for Downlink and Uplink channels
  • Describe reference signals used in Downlink and Uplink

LTE Medium Access Control (MAC) Layer

  • Describe key MAC functions
  • Explain channel mapping and multiplexing
  • Describe MAC PDU formats for different transport channels
  • Describe RACH procedure
  • Explain timing alignment and (DRX) procedures

LTE Radio Link Control (RLC) Layer

  • List the functions of RLC
  • Describe the different RLC modes in LTE
  • Compare RLC implementations in LTE and HSPA
  • Describe the re-segmentation process for retransmissions


  • Provide an overview of PDCP 
  • Describe PDCP data and control PDU formats 
  • Describe PDCP functions 
  • LTE and HSPA comparison


  • Provide an overview of RRC in LTE 
  • Describe idle mode procedure 
  • Show what RRC signaling is used in Connected mode 
  • Describe Radio Link Failure (RLF) Handling in UE

Course Location

About Etisalat Academy

We_They is the largest single-source business and telecom training solutions provider in the Middle East. For 30 years we have been providing training consultancy and human capital development services to telecoms, government agencies, oil & gas companies, financial institutions and organizations across all industries and business sectors.

We provide training and development programs ranging from cutting-edge technology courses in 3G, WiMAX, VoIP or IPTV, to career-changing leadership masterclasses, strategy workshops and business management seminars.

Based in the UAE and operating a 1.2 Million square feet training facility in Dubai, our partner network spans two continents and delivers world class training solutions to customers in over 28 countries in GCC and MENA regions.

We help organisations to:

  • Develop effective leaders, managers and team members
  • Discover and overcome competency gaps
  • Measure and improve performance
  • Build teams and improve communication
  • Recruit and retain talent
  • Build a knowledge culture
  • Create an organisation-wide competency framework
  • Stay competitive by using cutting-edge technology
See all Etisalat Academy courses

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