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4G LTE Evolved Packet Core (EPC) - Concepts and call flows

Name: 4G LTE Evolved Packet Core (EPC) - Concepts and call flows
Rating: 4.5 (3577 reviews)

Learn about the LTE architecture and get an in-depth understanding of LTE call flows by analyzing wireshark traces

Created bySuryabh S

Last updated 12/2020

English

What you'll learn

Fundamentals of LTE RAN Architecture
LTE EPC architecture and the various network elements (MME, HSS, PGW, SGW and PCRF)
Call Flows - LTE Attach - Analysis of Wireshark logs
Quality of Service (QoS) in LTE - Bearers and Traffic Flow Templates
LTE Protocols and the Various network interfaces.
LTE Network Identifiers - IMSI, GUTI, MCC,MNC etc.
LTE Security - Encryption, Integrity and Authentication

Course content

13 sections • 22 lectures • 4h 51m total length

Introduction to Course Goals7:06
In this lecture we will review the goals of the course. This lecture will give you an idea of the topics that will be covered during the course.
4G LTE - Motivation and key differences compared to other technologies21:25
In this lecture we will review the need for 4G LTE networks, and understand how LTE is different from other older technologies. We will also review the key enhancements that LTE has to offer that enables it to be better than legacy technologies.
Evolution in LTE - LTE, LTE Advanced, LTE Advanced Pro and Path to 5G6:44
In this lecture we will review the enhancements in LTE, starting from Release 8 all the way to releases 13 and 14. We will also discuss the roadmap for network operators to 5G.

Network Architecture and Evolution from 3G15:04
In this lecture we will cover the following topics -
Introduce the LTE network architecture and discuss the various network elements.
Discuss the evolution in network architecture and services from GSM, UMTS to LTE.
EUTRAN Network Architecture - eNodeB and UE9:49
In this lecture we will cover the following topics -
EUTRAN Architecture
Functions and responsibilities of eNodeB
Functions and responsibilities of User Equipment (UE)
UE Categories
More Details on User Equipment Categories5:12
In this lecture we will cover the following topics -
More information regarding UE Categories
Trade-offs between different UE categories
EPC Architecture - MME, HSS, SGW and PGW20:53
In this lecture we will cover the following topics -
MME functions and responsibilities in EPC
HSS functions and responsibilities in EPC
SGW functions and responsibilities in EPC
PGW functions and responsibilities in EPC
LTE Architecture Summary6:49
In this lecture we will review the LTE architecture based on the information that we covered in the previous lectures. This lecture will prepare you for the upcoming lectures. The intention of this lecture is to bring together the EUTRAN and EPC concepts coherently so that you have a firm understanding of the network elements on a high level.

Identifiers in LTE - IMSI, GUTI, TAC, APN, MNC, MCC17:30
In this lecture we will review the following terms used throughout LTE literature -
International Mobile Subscriber Identity (IMSI)
Mobile Country Code (MCC)
Mobile Network Code (MNC)
Mobile Subscriber Identification Number (MSIN)
Globally Unique Temporary Identifier (GUTI)
Mobility Management Entity (MME) Group ID
Mobility Management Entity (MME) Code
Mobile- Temporary Subscriber Identifier (M-TMSI)
Globally Unique Mobility Management Entity Identifier (GUMMEI)
MME Identifier
Tracking Area Identifier (TAI)
Tracking Area Code (TAC)
Access Point Name (APN)

Mobility Management Entity (MME)13:10
In this lecture we will cover the following topics -
NAS Signalling
Paging for Idle Mode UEs.
UE contexts in MME
EPS Bearer management by MME.
Home Subscription Server (HSS)5:58
In this lecture we will learn about the HSS functions and responsibilities.
Serving Gateway (SGW)8:17
In this lecture will learn about the SGW functions and responsiblities.
Packet Gateway (PGW)7:55
In this lecture we will learn about the PGW functions and responsibilities.

LTE Security22:57
In this lecture we we will review the following topics -
Security Aspects in LTE - Authentication, Encryption and Integrity
various Keys that are used in LTE
Key Hierarchy in LTE
Call flow for LTE Authentication
LTE Security – Real Logs15:45
In this lecture will build up on the previous lecture and analyze real wireshark logs from a test network and take a deep dive into call flow for LTE security - Authentication, Encryption and Integrity protection.

Requirements

Laptop with Internet connectivity
Willingness to learn about LTE :)

Description

LTE (4G) is the first network technology that is capable of delivering high-speed data to subscribers. It is the most widely deployed 3GPP technology and its adoption has been the fastest compared to its predecessors (2G, 3G). 4G LTE lays the foundation for the future 5G networks.

This course is designed to provide students with in-depth information regarding LTE EPC architecture. The course has been designed for all levels and starts off by providing the introduction to LTE and its advantages over legacy technologies. We then quickly start by building the foundation needed to understand the LTE technology and its architecture. During the lectures, all concepts are introduced by means of intuitive diagrams and real-network examples whenever possible. Here are some of the reasons why this course is different compared to others -

1. Robust structure

LTE EPC is a complex and very exhaustive topic. That is why we have organized the lectures in a way that students can quickly understand concepts.

2. Intuitive Examples and Use Cases

So many courses and books just bombard you with the theory. But they forget to explain, perhaps, the most important part: why you are doing what you are doing. And that's how this course is so different. We focus on developing an intuitive *feel* for the concepts behind LTE.

3. Real network Examples

In this course, we use real Wireshark traces from a test network to describe call flows rather than just relying on theory. This way we are able to deliver practical information to the students that will help them in real-world scenarios.

4. 3GPP based material

Throughout the course, we refer to the relevant 3GPP specifications so that students can become familiar with 3GPP specifications.

5. IN-COURSE SUPPORT

Have you ever taken a course or read a book where you have questions but cannot reach the author?

Well, this course is different. We are fully committed to making this the most disruptive and powerful LTE EPC course on the planet. With that comes a responsibility to constantly be there when you need our help. No matter how complex your query, we will be there. The bottom line is we want you to succeed. Therefore, feel free to send us a message and we will get back to you as soon as possible.

Good Luck and Happy learning!

Who this course is for:

Beginner
Advanced and Intermediate LTE professionals

4G LTE Evolved Packet Core (EPC) - Concepts and call flows

What you'll learn

Explore related topics

Course content

Introduction3 lectures • 35min

Network Architecture5 lectures • 58min

Identifiers in LTE1 lecture • 18min

Interfaces in LTE EPC1 lecture • 6min

Protocols in LTE1 lecture • 13min

Quality of Service (QoS) in LTE1 lecture • 24min

EPC Elements - Deeper Dive4 lectures • 35min

Security in LTE2 lectures • 39min

LTE Attach Call Flow - Wireshark Log analysis1 lecture • 30min

LTE Roaming1 lecture • 12min

Requirements

Description

Who this course is for: