1g,2g,3g,4g technologies

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SAAD AHMED BE (VI) Introduction To Technology’s Generations ?

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Page 1: 1G,2G,3G,4G technologies

SAAD AHMEDBE (VI)

Introduction To Technology’s Generations

?

Page 2: 1G,2G,3G,4G technologies

Using Analog signals Listen to handset Frequency typically 150MHz &

above

1G WIRELESS TECHNOLOGY

Page 3: 1G,2G,3G,4G technologies

DRAWBACKS OF 1G

Poor voice quality

Poor battery life

Large phone size

No security

Frequent call drops

Limited capacity and poor handoff

reliability.

Page 4: 1G,2G,3G,4G technologies

SECOND GENERATION

2G phones using global system for mobile communications

(GSM) were first used in the early 1990 s in Europe. GSM

provides voice and limited data services and uses digital

modulation for improved audio quality. Digital AMPS , CDMA

were some of the 2G systems.

FEATURES INCLUDES:

•Text•SMS•Fax• 2 Dimensional

Page 5: 1G,2G,3G,4G technologies

DRAWBACKS OF 2G

The GSM is a circuit switched , connection

oriented technology, where the end systems are

dedicated for the entire call session.

This causes ineffi ciency in usage of bandwidth

and resources.The GSM enabled systems do not

support high data rates. They are unable to

handle complex data such as video.

Reduce range of sound.

Weaker digital signal.

Page 6: 1G,2G,3G,4G technologies

2.5G WIRELESS

An interim stage that is taken between 2G and 3G that is 2.5G

Features includes:-o Phone calls/ Faxo Voice mailo Send/Receive e-mail messageso web browsingo camera phoneso speed: 64-144 kb/seco Time to download a 3 min MP3 song: 6-9 min

Page 7: 1G,2G,3G,4G technologies

THIRD GENERATION

To meet the growing demand in network capacity, rates

required for high speed data transfer and multimedia applications ,

3G standards started evolving.

It is based on the International

Telecommunication Union (ITU) family of standards.

3G technologies enable network operators to offer users a wider

range of more advanced services.

Services include wide-area wireless voice telephony, video-calls

and broadband wireless data , all in a mobile environment.

The data are sent through the technology called

Packet switching.Voice calls are interpreted

through circuit switching.

Page 8: 1G,2G,3G,4G technologies

Features includes

Phone calls/ fax

Global roaming

Send/receive large email messages

High speed web

Navigation / maps

Video conferencing

TV streaming

Electronic agenda meeting reminder

Speed: 200 kb/sec-2mb/sec

Time to download a 3 min MP3 song:

11 sec-1.5 min

Page 9: 1G,2G,3G,4G technologies

MUSIC ON YOUR MOBILE!!

Music is an important mobile

Content category.

Mobiles can’t compete with Ipads

True mobility immediate & direct

access to downloadable music,with

no cables or PC.

Page 10: 1G,2G,3G,4G technologies

Taking games to the next level

3G technology has taken the gaming to the next

level.

Real-time multiplayer gaming is possible in 3G

system.

Innovative new services are being added by

developer daily.

Page 11: 1G,2G,3G,4G technologies

EXTENDING TV TO MOBILES

Not simply rebroadcast of TV or website

Enhanced existing service for mobile environment.

Multi-faceted – 24*7 access to multiple

live streams , video , image & text

content , voting , messaging.

User interaction on multiple levels.

Fully integrated in browser – one click access.

Video-Conferencing

Page 12: 1G,2G,3G,4G technologies

ADVANTAGES OF 3G

New radio spectrum to relieve overcrowding in

existing systems.

More bandwidth , security & reliability.

Inter-portability between services providers.

High data rates.

Rich multimedia services.

Always online devices.

Page 13: 1G,2G,3G,4G technologies

DISADVANTAGES OF 3G

Expensive input fees for the 3G service licenses.

Numerous differences in the licensing terms.

It is a challenge to build the necessary

infrastructure for 3G

Expense of 3G phones .

Lack of buy-in by 2G mobile users for the new

3G

wireless services.

Large cell phones.

Page 14: 1G,2G,3G,4G technologies

ANYTIME,ANYWHERE CONNECTION

Also known as “Mobile Broadband Everywhere” One of the terms used to describe 4G is:

MAGIC Mobile Multimedia

Anytime Anywhere Global mobility Support Integrated wireless solution and Customized personal service.

Page 15: 1G,2G,3G,4G technologies

WHAT IS 4G???

Faster and more reliable – 100 Mbps

Lower cost than previous generations.

Multi-standard wireless system

Bluetooth , Wifi

Coverage of wide area.

Wide Variety of services capability.

IPv6 core

Potentially IEEE standards 802.11

Only packet switching used unlike previous generations.

MIMO(Multiple In Multiple Out) replace CDMA spread spectrum

radio technology.

Page 16: 1G,2G,3G,4G technologies

WHY 4G ???

Higher bandwidth enables a range of new applications! For the customer

Video streaming , TV broadcast Video calls , video clips- news , music , sports Enhanced gaming , chat , location services…

For Business

High speed Tele-working / VPN access Sales force automation Video conferencing Real-time financial information

Page 17: 1G,2G,3G,4G technologies

3G VS 4G

Specifications 3G 4G Frequency band

1.5- 2.8 GHz 2-8 GHz

Band width 5-20 MHz 5-20 MHz

Data rate upto 2 Mbps 20 Mbps or more

Access wideband CDMA Multi-carrier-CDMA orOFDM(TDMA)

FEC Turbo codes concatenated codes

Switching Circuit/ Packet Packet

Top speeds 200kmph 200kmph

Page 18: 1G,2G,3G,4G technologies

ADVANTAGES OF 4G

High usability: anytime, anywhere and with any technology.

Support for multimedia services at low transmission cost.

Higher bandwidth , tight network security.

DISADVANTAGES OF 4GThe equipment required to implement a next generation

network is still very expensive.

Carriers and providers have to plan carefully to make sure

that expenses are kept realistic.

Page 19: 1G,2G,3G,4G technologies

Estimation of Global Wireless Subscriber growth

Page 20: 1G,2G,3G,4G technologies

Thank you