3G is the third generation
of mobile phone standards and technology, after
2G. It is based on the International
Telecommunication Union (ITU) family of
standards under the International Mobile
Telecommunications programme, "IMT-2000".
3G technologies enable network operators to
offer users a wider range of more advanced
services while achieving greater network
capacity through improved spectral efficiency.
Services include wide-area wireless voice
telephony and broadband wireless data, all in a
3G Features --
The most significant feature of 3G mobile
technology is that it supports greater numbers
of voice and data customers ? especially in
urban areas ? and higher data rates at lower
incremental cost than 2G. By using the radio
spectrum in bands identified, which is provided
by the UTI for Third Generation IMT-2000 mobile
services, it subsequently licensed to
operators. 3G uses .5 MHz channel carrier width
to deliver significantly higher data rates and
increased capacity compared to 2G networks.