“4G TECHNOLOGY”

--- Forthcoming technology in Wireless Communication.

Presented By,Sahil SharmaHarvinder Singh

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Introduction. Evolution. Generations. Comparison Between 3G and 4G. 4G Characteristics. Mobile Services Before 4G. Infrastructure for 4G. WiMax 4G-Technology. Objectives and Uses. SWOT Analysis. Countries having 4G. 4G in India Conclusion.

CONTENTS

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In telecommunications, 4G is the fourth generation of cell phone mobile communications standards. It is a successor of the third generation (3G) standards. A 4G system provides mobile ultra-broadband Internet access, for example to laptops with USB wireless modems, to Smartphones, and to other mobile devices. Conceivable applications include amended mobile web access, IP telephony, gaming services, high-definition mobile TV, video conferencing and 3D television.

Now-a-days the goal of many customers is to have PC at one’s palm . To support such powerful systems we need long range, high speed wireless network called 4G.

WHAT IS 4G?

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The first commercial deployment was by Telia Sonera and NetCom.

Telia Sonera branded the network “4G”.

The modem devices on offer were manufactured by Samsung (dongle GT-B3710).

The network infrastructure were created by Huawei (in Oslo) and Ericsson (in Stockholm).

EVOLUTION OF 4G

EVOLUTION OF PROCESSORS AND DSP TECHNOLOGY FOR 4G

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GenGGenerations

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Technology 3G 4G

Frequency band 1.8 - 2.5GHz 2 - 8GHz

Bandwidth 5-20MHz 5-20MHz

Data rate Up to 2Mbps 100Mbps moving, 1GB stationary Access W-CDMA VSF-OFCDM VSFCDMA

FEC Turbo-codes Concatenated

Switching Circuit/Packet Packet

COMPARISON BETWEEN 3G AND 4G:

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Convergence Services--- Seamless . --- Highly-reliable. --- Quality Broadband

communication . --- Ubiquitous- connectivity.

Broadband Services --- Low Cost. --- Wide Coverage Area. --- Wide Variety of Services Capability.

4G CHARACTERISTICS

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LTE[Long Term Evolution]—UMTS(Universal Mobile Telecomm. Systems)

Objectives : Improving Efficiency. Lowering Costs. Improving Services. Better integration with

other standards. Aim of LTE : Download rate -

100mbps Upload rate-50 mbps.

SERVICES PRIOR TO 4G

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WIMAX-[Worldwide Interoperability for Microwave Access]

Objectives: Low Cost. Low Expense Voice

transport and delivery of

services.

Aim: Download data-rate 46 mbps.

Upload data-rate 14 mbps.

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There are three primary technologies that support 4G – WiMax, LTE, and UMB.

The main doubt is whether to implement WiMax or LTE.

The advantages of LTE are: (i) Faster speed with 100 Mbps for download and 50 Mbps for upload.

(ii) It makes CDMA and GSM database moot.(iii) It offers both FDD and TDD duplexing.

 

INFRASTRUCTURE FOR 4G

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4G EVOLUTION INTO CONVERGENCE

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WiMax technology might not achieve the required rate in a high-density area.

However, WiMax technology becomes useful when it is bundled with IPTV.

The wireless bandwidth will be roughly 3Mbps/1.5Mbps; but this is nowhere near the +100Mbps/50Mbps that LTE promises.

WiMax

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WIRELINE BANDWIDTH DEMAND PROJECTION FOR NEXT 25 YEARS

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Adaptive Modulation And Coding(AMC).

Adaptive Hybrid ARQ.

Multi In-Multi Out And Orthogonal Frequency-Division Multiplexing(MIMO and OFDM).

Open Distributed AD-HOC Wireless Network.

4G TECHNOLOGY

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Flexible channel bandwidth: 5 MHz to 20 Mhz.

(up to 40 MHz) Developing of 3G applications: MMS(multimedia messaging services).

Video chat. Mobile T.V. HDTV.

OBJECTIVES

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STRENGTHS : Strong position of telecommunication vendors. Faster data transmissions .

Higher bit-rate . Larger bandwidth.

Personalized multimedia communication tools.

WEAKNESS : No large user community . Divergence between vendors and operators.

No full internet -- limited speed ,bandwidth Highest cost to use and on infrastructure.

SWOT ANALYSIS-4G

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OPPORTUNITIES: Evolutionary approach. Sophisticated commercialization

would encourage e-commerce and m-commerce.

Expected that consumers will replace handsets with newer tech.

Desirable higher data capacity rates. THREATS : Faster rate of growth and developments in other region.

Since 3G is still in market ,it squeezes the market competition in mobile industry.

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Except for the Scandinavian countries, most of the strong nations have started the 4G commercially.

In the US, Sprint Nextel initiated the service a couple of years ago.

Countries who’ve launched 4G by the last year include - Germany, Spain, China, Japan and England.

WHICH COUNTRIES HAVE 4G?

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Has already begun the process of introducing 4G.

India is among the latecomers in 3G.

It is felt that by the time the implement 3G fully, 4G technologies such as LTE will be available commercially.

It has taken three years for the government to decide on 3G-spectrum auction policy.

4G could face the same delay unless India wants to catch up with the rest of the world.

4G IN INDIA

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4G mobile phone technology promises faster communication Speeds (100 megabits per second), capacity and diverse usage formats. These formats would provide richer content and support for other public networks such as optical fibre and wireless local area networks.

FUTURE SCOPE

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Delivers true speeds without wires.

Faster -- more bandwidth.

Completely portable . 3 times faster than 3G . 4G is broadband technology that will give us richer ,pleasurable internet experience.

CONCLUSION

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“THANK YOU”

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