Cellular phones and devices use frequencies starting in the UHF band with bandwidth (the analog version of bandwidth) regionally dependent. Motorola launched the first commercial cell phone in 1983. It cost thousands of dollars and had a short battery life. Since that time cellular phone technology has improved by leaps and bounds. The following diagram shows the different phases of cellular network technology:
The G in the different phases represents the generation of the technology. As you can see, applications requiring faster and faster network connections and more and more processing power ...
