3G, 4G and 5G are respectively, the third, fourth and fifth generation of mobile telecommunications technology.
3G can be used for wireless voice telephony, mobile internet access, fixed wireless internet access, video calls and mobile TV. 3G networks support services that provide an information transfer rate of at least 2 Mbps.
A 4G system (Anytime, Anywhere), in addition to 3G services, can provide mobile ultra-broadband internet access to laptops with USB wireless modems, to smartphones and other mobile devices. It can also be used for IP telephony, gaming services, high definition mobile TV, video-conferencing, 3-D television and cloud computing. It is used through two systems: Mobile WiMAX and Long Term Evolution (LTE). It is capable of providing 100 Mbps to 1 Gbps speed.
5G is the next major phase of telecom technology. It is expected to be hundred times faster than 4G. It does not refer to any specific standard of technologylike LTE for 4G. It is expected to reach areas where current networks cannot. It is expected to support thousand fold gains in capacity.
Thus, every new generation of mobile telecommunications technology is adding to internet penetration and speed to all mobile users all over the world.
