Everybody often heard about 3G which is related with mobile telephones. 3G is ‘Three Generation’ because there are two previous generation before it. Some services which are associated with 3G, such as: wireless voice telephone, broadband wireless data, enhanced possible additional applications which are all in mobile environment.
In early 80s is the time of 1G which supports AMPS used FDMA. Then 2G in 90s, for two competitive digital voice standards, CDMA and GSM, are existed. 3G exists in 2000 for ITU (The International Telecommunications Union) which supports a lot of applications and faster in downloading.
For information, the 4G will exist in 2011-2013 and 5G in 2020. These are all the development of the technology supporting items which 3G has become the bridge of improvement.
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