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4thGeneration Networks

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Contents

Introduction to 4G

History

Objectives of 4G

Expectations of 4GFeatures

What is needed

Wireless technoloies used!

Issues

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Short history

"echnoloy #G $G $!%G &G 4G

'esin (ean #)*+ #),+ #),% #))+ $+++

I-ple-entation #),4 #))# #))) $++$ $+#+.

/ervice 0nalo

1oice2/ynchronousdata to )!3bps

'iital voice2

short -essaes

Hiher capacity

pac5et6ied data

Hiher capacity

broadband dataupto $7bps

Hiher capacity2

co-pletely I8oriented2-ulti-edia datato hundreds of7(s

/tandards 078/2 "0C/297" etc

"'702 C'702G/72 8'C

G8:/2 E'GE2#;:""

WC'702C'70$+++

/inle standard

'ata (and

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Objectives

= Flexible channel band

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4G A70GICB!!!

Is the next co-plete evolution in

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Expectations of 4G

Will have end@to@end Internet 8rotocol AI8B2 and peer@to@peer

net

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Features

/upport for interactive -ulti-edia2 voice2 strea-in video2 Internet2 andother broadband services

I8 based -obile syste- Hih speed2 hih capacity2 and lo< cost@per@bit Global access2 service portability2 and scalable -obile services /ea-less s

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Components in 4G

Fe

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4G EPS architecture

"he core net

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Contenders

Long Term Evolution (LTE/LTE Advanced):"E is the project na-e of ane< hih perfor-ance air interface for cellular -obile co--unication syste-s! It is the last step to

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What is needed.

/ufficient spectru-2

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8rincipal technoloies

Orthoonal Freuency 'ivision 7ultiplexinAOF'7B in the do

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OFDM

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Orthogonal frequency-division multiple

access

7ulti@user version of the traditional OF'7OF'70 can be seen as an alternative to co-binin OF'7

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/oft

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7ultiple@input 7ultiple@output A7I7OB

technoloy that can carry 4 to % ti-es -ore data

traffic than todayKs -ost advanced ?7"/@

H/'80@ready A&GB net

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Others

Turbo#principle error#correcting code ($orward Error %orrection):For

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Issues ith 4G

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!han" you