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Definition of:3GAlso known as: Third Generation 3G (Third Generation) is a generic term used to refer to the latest standard of wireless mobile telephone networks. Third Generation phones are capable of the high data rates, wide bandwidth and increased capacity needed to support the new range of digital services available for mobile devices, such as Internet access, multimedia applications, and support for global roaming. The major multiple access transmission technique used in 3G is CDMA, a packet-switching technology, which provides a more efficient use of the available spectrum than did the earlier methods of FDMA and TDMA. The two main 3G technologies used are UMTS with wideband CDMA (W-CDMA) in Europe, and cdma2000 with multi-carrier CDMA (MC-CDMA) in the USA. Many 3G systems will operate in the 2 GHz frequency band, and are designed to provide a range of data rates from 144 kbps to 2 Mbps, depending on the user's location and circumstances. The 3G mobile communications standard was a programme led originally by the ITU under the IMT-2000 project, and handsets and networks are now generally defined as UMTS (Universal Mobile Telecommunication Service). However, despite the intention that the IMT-2000 specification would result in a single, unified 3G system, several different versions of 3G have developed due to the leading telecommunications companies choosing to take a more evolutionary approach to upgrading their networks. | ||||
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Glossary Terms Beginning with 0-9 | ||||
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0-9 | ||||
1GAlso known as: First Generation 1G (First Generation) is the name given to the first generation of mobile telephone networks. These systems used analogue circuit-switched technology, with FDMA (Frequency Division Multiple Access), and worked mainly in... | ||||
2.5GAlso known as: Second Generation Enhanced 2.5G (Second Generation Enhanced) is a generic term used to refer to a standard of wireless mobile telephone networks that lies somewhere between 2G and 3G. The development of 2.5G... | ||||
2GAlso known as: Second Generation 2G (Second Generation) is the generic term used to refer to the second generation of wireless mobile telephone networks, which were the first to feature purely digital technology. As demands for... | ||||
3 Way CallingAlso known as: Conference Call 3-Way Calling (Conference Call) is a network facility that enables three or more parties to be connected together in a conference call, so that they may all speak and listen simultaneously.... | ||||
3GAlso known as: Third Generation 3G (Third Generation) is a generic term used to refer to the latest standard of wireless mobile telephone networks. Third Generation phones are capable of the high data rates, wide bandwidth... | ||||
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0-9 | ||||
