3G services

1G technology means first generation Technology. Later version of this is 2G,means second generation technology. A later version of both is called 3G technology. In this, video broadcast and data intensive services such as stock transactions, e-learning telemedicine through wireless communications can be possible. All telecom operators are waiting to launch 3G in India to cash in on revenues by providing high-end services to customers, which are voice data and video enabled. India lags behind many Asian countries in introducing 3G services. The amount of bandwidth needed for 3G services could be as much as 15-20 MHz, whereas for 2G services a bandwidth of 30-200 KHz is used. Hence, for 3G huge bandwidth is required.