4G(LTE) - Architecture, Features and Call Flow

A 2 month course on the fundamentals of 4G networks which covers the architecture and operations of the system

  • Domain : ELECTRONICS
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A Quick Overview

This course is designed to provide a comprehensive understanding of the architecture and operation of the LTE system including the OFDM-based radio interface.  This Online program will give an in-depth overview of LTE Features, Call flows and working scenarios with various real-time logs and configurations. 

It covers the concept of Air interfaces with real hands-on and LTE core architecture, interfaces and messages with real setup examples. This course also covers all the protocol stacks in detail with real-time challenges.

The architecture of LTE network is given and the functions of each network node, MME S-GW, P-GW, eNB, interfaces X2 and S1 and NAS and AS procedures are extensively discussed with logs and examples. The radio concepts and implementation issues are given to ensure a comprehensive understanding of basic operation, development challenges and testing environment. At the end, VoLTE and evolution and changes in 5G are discussed to help kick off the understanding of 5G.

 


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4G(LTE) architecture, features and Call Flow Syllabus

1Introduction to 4G systems, OSI layers, LTE call flows & Basics of C- Part 1

  • Introduction to 3GPP & 4G Sub systems
    • 3GPP Evolution & Multiple Access Schemes
  • OSI Layers & Networking Protocol
    • OSI Layer Introduction and Corresponding Protocols
    • TCP vs UDP
  • IP Subnetting & Routing
    • IPv4/IPV6
    • Subnetting, Routing

 

2Introduction to 4G systems, OSI layers, LTE call flows & Basics of C- Part 2

  • LTE Bands, Architecture & Interfaces
    • LTE Frequency, Bands and Bandwidth
    • LTE Architecture and Interfaces "
  • LTE Frames Structures, Resource Block & Bearers
    • LTE Frame structure DL/UL(sfn, sf, slot)
    • Resource Block
    • Bearers
    • Quality of service
  • LTE Protocol Stack & Channel Mapping
    • LTE RAN Protocol stack an introduction and mapping
    • LTE channels and mappings
  • LTE Initial synchronization
    • Basic Procedure: Cell Search
    • Synchronization Procedures
    • Synchronization signals - PSS, SSS
    • Cell ID Detection

 

3Initial Access, Frames and MAC of LTE- Part 1

  • LTE Initial Attach Call Flow
  • LTE Call Flow - initial Attach
  • LTE PDCP
    • PDCP
  • LTE RLC
    • RLC

4Initial Access, Frames and MAC of LTE- Part 2

  • LTE MAC
    • MAC
  • LTE PHY Procedures
  • LTE SRB & Message Mapping
    • LTE SRB
    • LTE messages & Mappings with channel, PDCP/RLC/MAC involvement & SRBs
    • SRB, DRB, ERAB ID mapping to LCID
  • LTE RRC-NAS
    • RRC/NAS
    • RRC overview and state
    • RRC Connection Re-Establishment
    • NAS Procedures

5RLC, RRC / NAS, PDSCH, PDCCH, HO & Advanced C- Part 1

  • LTE Handover & Measurement Events
    • LTE EVENT for Measurement Report
    • Handover
  • LTE RACH Procedure
    • RACH Procedure in detail
  • LTE DCI

6RLC, RRC / NAS, PDSCH, PDCCH, HO & Advanced C- Part 2

  • LTE PDCCH
    • PDCCH in detail
    • Search space, blind decoding, pdcch candidate
  • LTE Resource Allocation
    • PDSCH in detail
    • Resource Allocation
  • LTE PUCCH
    • PUCCH in detail
    • UCI(SR, CQI, HARQ ACK/NACK)
    • PHICH in detail
    • HARQ process overview
  • LTE MAC Scheduler
    • Scheduler & Scheduling types
    • Scheduling Flows
    • TB size & MCS Calculation

7RLC, RRC/NAS, PDSCH, PDCCH, HO & Advanced C- Part 1

  • LTE EPC Nodes & interfaces
    • MME
    • PGW
    • SGW
    • NAS
    • S1AP
    • HSS
    • PCRF
    • DIAMETER
  • LTE DRX & Paging
  • LTE TAU & Identifiers
    • TAU in detail
    • LTE IDs
    • RNTIs

8RLC, RRC/NAS, PDSCH, PDCCH, HO & Advanced C- Part 2

  • LTE UE Related MAC features
    • BSR
    • PHR
    • Backoff Indicator
  • VoLTE overview : IMS, LTE_EPC and PCC nodes , interfaces and functions. Typical VoLTE call flow establishment
    • VoLTE Nodes
    • IMS Core
    • VoLTE Call Flow
  • 4G Vs 5G
    • Evolution of to 5G - comparison on 4G vs 5G
    • Numerology, slot, SCS, Frame Structures, mmWave
  • 4G Vs 5G Part2
    • SDAP
    • Difference in MAC, RLC, PDCP
    • 5G Core Reference Architecture
    • 5G Core SBA


Projects Overview

Customization of LTE-Sim

Highlights

Project Description:


The LTE project based on customization of “LTE-Sim” an open-source framework to simulate LTE networks. The developed LTE-Sim, encompasses several aspects of LTE networks, including both the Evolved Universal Terrestrial Radio Access (E-UTRAN) and the Evolved Packet System (EPS). It supports single and heterogeneous multi-cell environments, QoS management, multi-users environment, user mobility, handover procedures, and frequency reuse techniques.

Steps Involved in Project:

  • Installing Oracle virtual box on windows
  • Installing Ubuntu OS virtual machine
  • Installing all the dependencies on ubuntu for LTE-Sim
  • LTE-Sim compilation and installation
  • Creating a customized scenario in LTE-Sim
  • Running a scenario and collecting logs
  • Plotting graph based on the output of a scenario using Gnuplot.T

Configuration of an LTE network

Highlights

The project is based on open5gs, an open-source EPC and 5G Core platform. This project can be used to configure your own LTE network. With this project you can create different scenarios, test them and analyse them. Open5GS implemented EPC using C-language.

The Open5GS 4G Core contains the following components:

  • MME - Mobility Management Entity
  • HSS - Home Subscriber Server
  • PCRF - Policy and Charging Rules Function
  • SGWC - Serving Gateway Control Plane
  • SGWU - Serving Gateway User Plane
  • PGWC/SMF - Packet Gateway Control Plane / (component contained in Open5GS SMF)
  • PGWU/UPF - Packet Gateway User Plane / (component contained in Open5GS UPF)

 


WHO IS THIS COURSE FOR ?


  • Any Fresher who wants to pursue a carrier in Telecom industry and also any experienced who wants to further build their LTE understanding, can take this course.

SOFTWARE COVERED

Wireshark

Wireshark is a network packet analyzer. A network packet analyzer presents captured packet data in as much detail as possible. Developers use it to debug protocol implementations.

 


Certification

  • Top 5% of the class will get a merit certificate
  • Course completion certificates will be provided to all students
  • Build a professional portfolio
  • Automatically link your technical projects
  • E-verified profile that can be shared on LinkedIn

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Frequently Asked Questions

1Who can take this course?

Any Fresher who wants to pursue a career in Telecom industry and also any experienced professional who wants to further build their LTE understanding, can take this course.

2What is included in this course?

  • Overview of LTE Features, Call flows and working scenarios with various real time logs and configurations.
  • Concept of Air interfaces with real hands-on and LTE core architecture, interfaces and messages with real setup examples
  • Protocol stacks in detail with real time challenges.
  • Radio concepts and implementation issues are given to ensure a comprehensive understanding of basic operation, development challenges and testing environment.

3What will the student gain from this course?

The Student will gain the development experience of LTE, they will also gain deep and practical understanding of eNodeB, EPC, MME, SGW, User plane Stack, control plane stack, VoLTE etc.

4What software skills are you teaching and how well are these tools used in the industry?

Wireshark is a network packet analyzer. A network packet analyzer presents captured packet data in as much detail as possible. Developers use it to debug protocol implementations

 

5What is the real world application for the tools and techniques will you teach in this course?

Real time logs, configuration and examples have been included in this course to relate all the topics to a real time working mechanism.

6Which companies use these techniques and for what?

All the Wireless communication and telecom domain companies use this.

7How is this course going to help me get a job?

By the end of this course, you will understand the basic and the real LTE system development skills and make yourself more marketable for entry level LTE development positions. This course includes end to end LTE subsystems where you will be given in-depth Call flows and working scenarios with various real time logs and configurations. This course objective is to provide a hands-on and also give real system working prospects to the students.

After taking this course you can apply for any Entry level or experienced level Telecom based industries for a development position.


Flexible Course Fees

Choose the plan that’s right for you

Basic

2 Months Access

$92.89

Per month for 3 months

  • Access Duration : 2 Months
  • Mode of Delivery : Online
  • Project Portfolio : Available
  • Certification : Available
  • Email Support : Available
  • Forum Support : Available
Premium

Lifetime Access

$199.05

Per month for 3 months

  • Access Duration : Lifetime
  • Mode of Delivery : Online
  • Project Portfolio : Available
  • Certification : Available
  • Individual Video Support : 12/ Month
  • Group Video Support : 12/ Month
  • Email Support : Available
  • Forum Support : Available
  • Telephone Support : Available
  • Dedicated Support Engineer : Available

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