4G Fourth Generation Of Mobile Phone
In Telecommunications 4G is the fourth generation of mobile phone mobile communications standards. It is a successor of the third generation  (3G) standards. A 4G system provides mobile ultrabroadband Internet access, for example to laptops with USB wireless modems, to smartphones, and to othe mobile devices conceivable applications include amended mobile web access, IP telephony, gaming services, high definition mobile TV, video conferencing and 3D Television. Recently, Android and Windows enabled cellular devices have fallen in 4G category. One base advantage of 4G is that it can at any point of travelling time provide an internet data transfer rate higher than any existing cellular services (excluding broadband and Wi-Fi connections)
http://en.wikipedia.org/wiki/4G

 

PURE DATA NETWORK

The current 3G mobile network handle both voice and data seperately. One of the most significant changes to the the most significant changes the 4G network that is a network, transfering Internet Protocol (IP) data packets. A completely data based will allow for more bandwith which means more data can be passed thryouh the network.

 

SPEED

In october 2010, the ITU set the standard for 4g Networks to have a peak data download speed of 100 Megabits per second in mobile applications such as mobile phones and roaming network devices and 1 Gigabit per second in local ficed locations.

 

RANGE

Current 3G network technology range is approximately 10 miles under optimum conditions 4G candidate WiMAX currently has a range of up 31 miles under optimum contions.

 

HAND OFF

Though current 3G networks do have the abiliti to transfer data, when a user leaves a 3G coverage area for another, the data transger may be halted or stopped due compability issues. The improved 4G network standards will eliminate this, allowing for smooth hand off from one coverage area to another without interruption to any ongoing data transfers.This will result in smooth streaming data for the user.

 

MORE DEVICES AND APPLICATIONS

Unlike current 3G smartphones and netbooks, which are light in processing power, 4G network devices can take advantage of the higher bandwith and speeds to deliver more robust and data heavy applications. One of the most anticipated uses of the 4G network is to be able to deliver high definition digital television to a handheld device. Other anticipated applications include portable online gaming, improved GPS and telemedicine.

http://www.ehow.com/about_7535206_advantages-using-4g.html