3G - 3G stands for Third Generation of mobile phones. First Generation mobile phones include Advanced Mobile Phone Systems (AMPS) which were established in the 1960s and laid a strong foundation for establishing rigid cellular networks. Second Generation Mobile Systems include the GSM (Global System for Mobile Communication) and CDMA (Code Division Multiple Access) systems. We are currently in 2.5G. Actually 2.5 G is not a system but this was introduced to bridge the wide gap between 2G and 3G networks. 2.5 G systems enable GPRS and EDGE connectivity. 3G networks provide voice and high speed data services using spread spectrum technologies, thus enabling multimedia services on a cell phone.
Currently we are moving towards 3G networks, but the process seems to be very slow, as it involves procurement of the license from the respective authorities and then establishing the whole network. 3G networks are totally different from the current GSM and CDMA networks. Service providers can't upgrade the existing networks to 3G networks. Also some of the basic models don't even support 3G phones. One aspect which must be taken into consideration by operators before procuring license for 3G is the high risk involved in installing 3G networks. The chances of very less people turning towards 3G are high. This is because
Several countries have faced problems in establishing 3G networks because of the tremendous license fee incurred by respective authorities. As a result the service providers were financially crippled to establish 3G cellular networks. Also 3G was not that successful in Europe as it was in