concept of 3-G

Mobile telephones, the 1st generation of which were introduced in the mid-1980’s, have been constantly evolving since their inception. Today, over 2B mobile phones are in usage and around 80% of the world’s population is within reach of a mobile phone signal). Mobile phones have traditionally been used for voice communications, but today can serve as the platform for a variety of communication outputs — including data and video. 3G is the third-generation of mobile phone technology standards. The typical services associated with 3G include wireless voice telephony and broadband wireless data, all in a mobile environment. However, with the capability for high-speed wireless data transfer, 3G has enhanced or made possible a myriad of additional applications such as mobile video, secure mobile ecommerce, location-based services, mobile gaming and audio on demand. For example, using 2.5G (or a slightly better version of second-generation wireless) a three-minute song takes between six and nine minutes to download. Using 3G, it can download in 11 to 90 seconds.