Shortly, 3G stands for third generation of mobile telecommunications technology and it was implemented to improve the existing IMT (International Mobile Telecommunication)-2000 standards
A 3G network is able to support information transfer up to 200 kbit/s, performing TV browsing or video calls
After a decade, since they shaped the interest of consumers for more speed and better quality, the 3 Standard implemented in 1998, was continued by 4G, designed for 100 Mbit/s