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Long Term Evolution (LTE) Tutorials

LTE video tutorial


LTE physical layer



Introduction to LTE architecture


LTE and LTE Advanced presentations


LTE protocol architecture


LTE network architecture

E-UTRAN user plance protocol stack

EPS architecture overview

This excellent video by Russell DeLong covers the EPS in detail. The topics covered here are:

Terminology clarifications for "4G LTE" and the EPS.

Overview of each component of EPS. Russell walks you through the role of the MME, the S-GW and the P-GW.

Overview of each logical connection between each component on the EPS.


LTE channels and performance


LTE channels and protocol layers


LTE physical layer presentation


Dynamic radio resource management in LTE

Frequency reuse in LTE

MIMO


LTE signal visualization

LTE signal demonstration


LTE/LTE Advanced Networks - special issue


EPC Videos

MME


MME by chrisreece

S-GW


S-GW by chrisreece

P-GW


P-GW by chrisreece

HSS


HSS by chrisreece

Voice over LTE

VoLTE video tutorial


Circuit switched fallback in LTE


LTE & Voice by chrisreece

Many networks use circuit switched fallback for setting up voice. When an LTE user makes a voice call, the mobile falls back to to UMTS. Pros and cons of CS fallback are also discussed.

Introduction to IMS

IMS will increasingly play a bigger role in next generation IP services. IMS will start with voice and move over to other services. IMS components and their interactions with LTE and voice networks are discussed.