5GNR

Mobile Communication Networks: From 2G to 5G and Beyond Mobile networks have reshaped everyday life. From simple voice calls to fast data, each generation brings new speeds, new devices, and new ways to use the internet. This overview covers 2G, 3G, 4G, 5G, and what may come after. A quick tour of generations: 2G started digital voice and SMS. Data was slow, but calls were clearer and more reliable. 3G added real mobile internet. Web pages and email worked, with better video calling than before. 4G LTE made mobile broadband common. Streaming, maps, and apps work smoothly on phones and tablets. 5G raises the bar again with very fast speeds, very low delays, and many connected devices in one area. It also introduces ideas like network slicing, which can tailor services for different tasks. Big ideas behind the evolution: ...