3G and 4G are wireless technologies which are supposedly faster more secure and reliable Present day...........

Everyday Science General Science

3G and 4G are wireless technologies, which are supposedly faster, more secure and reliable. Present day 3G technology is capable of handling data around 2 Megabits per second (1.8-2.5 GHz frequency band).What speed is expected from new 4G technology?

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CAPF 2014 Paper-1

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10-30 Megabits per second (1-5 GHz frequency band)

10-100 Megabits per. second (2-10 GHz frequency band)

100 Megabits-1, Gigabit per second (2-8 GHz frequency band)

More than 1 0 Gigabits per second (10-20 GHz frequency band)

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Explanation:

Most users are familiar with “4G” standards, as most smartphones use this communications standard. 4G simply means “fourth generation” in reference to the evolution of data transfer technologies. The first generation of mobile technology (1G) came in 1981 with analog transmission, and in 1992 was 2G appeared in the form of digital information exchange. 3G made its debut in 2001, and included multi-media support along with a peak transfer rate of at least 200 kilobits per second. True 4G support is here. It is no surprise, then, that 4G means “fourth generation” and represents a number of improvements over the 3G technology.