What are the differences between 1G 2G 3G and 4G?

History. The first commercial cellular network, the 1G generation, was launched in Japan by Nippon Telegraph and Telephone (NTT) in 1979 , initially in the metropolitan area of Tokyo. Within five years, the NTT network had been expanded to cover the whole population of Japan and became the first nationwide 1G network.

The very first generation of commercial cellular network was introduced in the late 70’s with fully implemented standards being established throughout the 80’s . The radio signals used by 1G are analogue, meaning the voice of a call is modulated to a higher frequency rather than being encoded to digital signals.

A Cellular network or Mobile network is a radio network distributed over land areas called cells , each served by at least one fixed-location transceiver, known as a cell site or base station.

The cellular communications networks are known by their numeric generation : 1G, 2G, 3G, 4G and 5G. We are currently fully deployed in 4G with 5G gaining ground. … cellular. 5G. The latest cellular generation began in 2018 and will take several years for nationwide adoption.