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Based on the International Mobile Telecommunications-2000 (IMT-2000) specifications established by the International Telecommunication Union (ITU), 3G supports a range of services, including voice telephony, mobile internet access, video calls, video streaming, and mobile TV. [1]
In December 2007, 190 3G networks were operating in 40 countries and 154 HSDPA networks were operating in 71 countries, according to the Global Mobile Suppliers Association (GSA). In Asia, Europe, Canada and the US, telecommunication companies use W-CDMA technology with the support of around 100 terminal designs to operate 3G mobile networks.
September 25, 2001 NTT DoCoMo announced that three 3G phone models are commercially available. The High Speed Cellular Age; October 1, 2001 NTT DoCoMo launched the first commercial WCDMA 3G mobile network. November 1, 2001 Nokia and AT&T Wireless complete first live 3G EDGE call.
The first commercial 3G networks started appearing in South Korea, Japan, the U.S. and U.K. from about 2002. By the end of 2007, there were 190 3G networks operating in 40 countries. However, since the rollout of 4G starting in around 2008, 3G usage has been in decline.
The project was established in December 1998 with the goal of developing a specification for a 3G mobile phone system based on the 2G GSM system, within the scope of the International Telecommunication Union's International Mobile Telecommunications-2000, hence the name 3GPP. [3]
International Mobile Telecommunications -2000 (IMT — 2000), better known as 3G or 3rd Generation, is a generation of standards for mobile phones and mobile telecommunications services fulfilling specifications by the International Telecommunication Union.[1]
Work started on a harmonized European cellular technology in the early 1980s under the auspices of CEPT, carried out in an ad hoc subgroup called Groupe Spécial Mobile - GSM for short. An overview of the early history of GSM can be found in Hillebrand (ed) [1]
