LTELONG TERM EVOLUTION

AMANDEEP SINGH12467

2Contents1. Overview

2. Goals

3. Building an LTE network

4. Network Architecture

5. LTE Technologies

6. Working of an LTE system – Data Transmission

7. Advantages

8. LTE 4G Penetration

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Overview LTE, an acronym for Long-Term Evolution, commonly marketed as

4G LTE, is a standard for wireless communication of high-speed data for mobile phones and data terminals.

It was started as a project in 2004 by telecommunication body known as the Third Generation Partnership Project (3GPP).

It provides the fastest mobile broadband services commercially available today.

According to latest Ericsson Mobility Report, there will be 9.3 billion mobile subscriptions in 2019. 65% of the world's population will have LTE coverage 2019.

The high speeds are made possible by using more radio spectrum per connection, multiple antenna pads and more efficient encoding of the data being sent and received.

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Goals The goal of LTE was to increase the capacity and speed of

wireless data networks using new DSP (digital signal processing) techniques and modulations that were developed around the turn of the millennium.

A further goal was the redesign and simplification of the network architecture to an IP-based system with significantly reduced transfer latency compared to the 3G architecture.

The LTE wireless interface is incompatible with 2G and 3G networks, so that it must be operated on a separate radio spectrum.

5Building an LTE Network

Antennas and radio base stations – eNodeB

A transport network including microwave links, optical fibres and IP routers.

A connection to the IP networks known as the gateway.

A controller to manage mobility called the Mobility Management Utility(MME).

A Home Subscriber Server(HSS) database which contains information about all the individual subscriptions.

A policy management system to ensure that the services are delivered accordingly.

An IP Multimedia Subsystem to handle Voice over LTE and other multimedia services.

6Network Architecture

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8LTE Technologies

OFDM (Orthogonal Frequency Division Multiplexing) for downlink.

SC-FDMA (Single Carrier – Frequency Division Multiple Access) for uplink.

MIMO (Multiple Input Multiple Output)SAE (System Architecture Evolution)

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Working of an LTE System -

Data Transmission

10Advantages Improved browsing and online experience thanks to

lower latency and unwanted delays. Better app coverage i.e. better performance in

multimedia applications through higher upload and download speeds.

Enhanced voice communication with higher voice quality and shorter call establishment time.

Cost effective.

114G LTE PenetrationRank Country/Territory Penetration

1. South Korea 62.0%

2. Japan 21.3%

3. Australia 21.1%

4. United States 19.0%

5. Sweden 14.0%

6. Canada 8.1%

7. United Kingdom 5.0%

8. Germany 3.0%

9. Russia 2.0%

10. Philippines 1.0%

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