I made this presentation about overview of third generations of technology..in this topics discovered: --> What is 3G. --> History. -->3G standard -->Features

3. Contents
Introduction
History
Overview
AdaptionFeatures
Applications
3G Evolution

4. 3G is the 3rd Generation wireless technology. It comes
with enhancment over previous wireless technology,
like high-speed transmission, advanced multimedia
access and global raoming. 3G is commonly used
with mobile phones and handsets as a means to
connect the phone to Internet or other networks in
order to make voice and video calls, to download and
upload data and to surf the net.
3G allows simultaneous use of speech and data
services and higher data rates up to 14.0 Mbps.

5. The Third Generation, as the name suggest, follows
two erlier generations. i.e., 1G and 2G

6. The first commercial 3G network was
launched by NTT DoCoMo in Japan on 1
October 2001.
3G telecommunication networks support
services that provide an information transfer
rate of at least 0.2 Mbit/s . Later 3G releases,
often denoted 3.5G and 3.75G

7. ●The early mobile phones used first-
generation technology, which was analog,
circuit based, narrowband, and suitable only
for voice communications.
●Commercial wireless devices have used
second generation technology, which is digital,
circuit based, narrowband, and suitable for
voice and limited data communications.

8. 3G technology comprises three primary
standards:
● W- CDMA (wideband code-division multiple access),
● CDMA2000,
● TD-CDMA (time-division CDMA).
Each standard is based on an upgrade path for
at least one of today’s primary wireless
interfaces:
● TDMA (time-division multiple-access),
● GSM(Global system for mobile communication)
● CDMA(Code division for multiple access

9. There are many features of 3G technology such as
Higher Data Speed, Enhanced Audio and Video
streaming, Video conferencing Support, Web
browsing at higher speed, IPTV support. Etc.
But the most important features of 3G are :

10. It is the one of the most important feature of 3G
The Transfer Data Rate of 3G is very high as compare
to 2G system i.e., GPRS and EDGE.
 The transfer rate for 3G networks is between 128
& 144 kbps for device that are moving fast and
384 kbps for slow ones.
 For fixed wireless LAN’s the speed goes beyond
2Mbps.

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