4G LTE – NAS Layer Functions

In this tutorial, we have discussed the functions and protocols of the NAS layer. NAS (Non-Access Stratum) is the layer 3 of the LTE protocol stack, which is the top most protocol layer in the LTE control plane stack. We have also discussed EPS Mobility Management and EPS Session Management entities in the NAS layer.

Timestamps

00:00 Intro
00:13 Overview
02:38 EPS Mobility Management (EMM)
05:21 EPS Mobility Management (EMM) States
07:24 EMM Connection Management (ECM)
10:35 EPS Session Management (ESM)

Please check out the complete playlist of LTE video tutorials on Fundamentals of LTE at the link given below:

The topics covered in this tutorial are some important concepts of 4G-LTE technology.
It contains in-depth explanation of LTE architecture, LTE protocol stack, Functions of different layers in LTE protocol stack, etc.
The tutorial focuses mostly on the technical aspects of LTE Air Interface protocols.
You will learn about the fundamental concepts and key building blocks of LTE cellular technology.

Please check the links of individual videos of the tutorial below:

LTE Technology Overview

LTE E-UTRAN Architecture and Interfaces

LTE EPS Architecture and Interfaces

Features of different LTE releases

LTE Protocol Stack Architecture

LTE MAC Layer Functions

LTE RLC Layer Functions – Part 1

LTE RLC Layer Functions – Part 2

LTE PDCP Layer Functions

LTE RRC Layer Functions

LTE NAS Layer Functions

Hope you find the videos useful.
We will continue to add more videos on important topics in this tutorial and try to include every fundamental aspect of LTE, which would help you to grow your knowledge on the technology.

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Happy Learning 🙂

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4g lte