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ARUN KUMAR .J 
JSS PDA (V CS)
 Using Analog signals 
 Listen to handset 
 Frequency typically 150MHz & above
 Poor voice quality 
 Poor battery life 
 Large phone size 
 No security 
 Frequent call drops 
 Limited capacity and poor handoff 
reliability.
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:
1g.2g.3g.4g
 An interim stage that is taken between 2G and 
3G that is 2.5G 
Features includes:- 
o Phone calls/ Fax 
o Voice mail 
o Send/Receive e-mail messages 
o web browsing 
o camera phones 
o speed: 64-144 kb/sec 
o Time to download a 3 min MP3 song: 6-9 min
 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.
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
 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.
 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.
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.
 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.
 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.
Also known as “Mobile Broadband Everywhere” 
One of the terms used to describe 4G is: 
Mobile Multimedia 
Anytime Anywhere 
Global mobility Support 
Integrated wireless solution and 
Customized personal service.
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.
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
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 or 
OFDM(TDMA) 
FEC Turbo codes concatenated codes 
Switching Circuit/ Packet Packet 
Top speeds 200kmph 200kmph
High usability: anytime, anywhere and with any technology. 
Support for multimedia services at low transmission cost. 
Higher bandwidth , tight network security. 
The 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.
1g.2g.3g.4g
1g.2g.3g.4g

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1g.2g.3g.4g

  • 1. ARUN KUMAR .J JSS PDA (V CS)
  • 2.  Using Analog signals  Listen to handset  Frequency typically 150MHz & above
  • 3.  Poor voice quality  Poor battery life  Large phone size  No security  Frequent call drops  Limited capacity and poor handoff reliability.
  • 4. 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:
  • 6.  An interim stage that is taken between 2G and 3G that is 2.5G Features includes:- o Phone calls/ Fax o Voice mail o Send/Receive e-mail messages o web browsing o camera phones o speed: 64-144 kb/sec o Time to download a 3 min MP3 song: 6-9 min
  • 7.  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.
  • 8. 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
  • 9.  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.
  • 10.  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.
  • 11. 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.
  • 12.  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.
  • 13.  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.
  • 14. Also known as “Mobile Broadband Everywhere” One of the terms used to describe 4G is: Mobile Multimedia Anytime Anywhere Global mobility Support Integrated wireless solution and Customized personal service.
  • 15. 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.
  • 16. 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
  • 17. 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 or OFDM(TDMA) FEC Turbo codes concatenated codes Switching Circuit/ Packet Packet Top speeds 200kmph 200kmph
  • 18. High usability: anytime, anywhere and with any technology. Support for multimedia services at low transmission cost. Higher bandwidth , tight network security. The 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.