4. 4. 3G TECHNOLOGY
*FEATURES
*MUSIC ON MOBILE
*TAKING GAME THE NEXT
LEVEL
* EXTENDING TV TO MOBILE
*ADVANTAGES
*DISADVANTAGES
5. 4G TECHNOLOGY
*WHAT IS 4G
*3G VS 4G
*ADVANTAGES
*DISADVANTAGES
*4G SERVICES IN ASIA
*ESTIMATION OF
GLOBAL WIRELESS
SUBSCRIBER GROWTH
6. Poor voice quality
Poor battery life
Large phone size
No security
Frequent call drops
Limited capacity and poor handoff
reliability.
7. 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.
9. The GSM is a circuit switched , connection
oriented technology, where the end systems are
dedicated for the entire call session.
This causes inefficiency 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.
10. 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
11. 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.
14. 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.
15. 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
Video-Conferencing
18. ANYTIME,ANYWHERE
CONNECTION ‘’4G’’
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.
19. 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.
Ad Hoc networking
IPv6 core
Potentially IEEE standards 802.11
Only packet switching used unlike previous generations.
OFDMA(Orthogonal Frequency Division Multiple access)
and MIMO(Multiple In Multiple Out) replace CDMA
spread spectrum radio technology.
20. 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
or
OFDM(TDMA)
FEC Turbo codes concatenated codes
Switching Circuit/ Packet Packet
Top speeds 200kmph 200kmph
22. ADVANTAGES OF 4G
High usability: anytime, anywhere and with any
technology.
Support for multimedia services at low
transmission cost.
Higher bandwidth , tight network security.
23. DISADVANTAGES OF 4G
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.