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Posted by / 09-Jul-2017 22:00

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The technical specifications were made available to the public under the name IMT-2000.The communication spectrum between 400 MHz to 3 GHz was allocated for 3G.

Net Corporation in February 2002 using UMTS on 2,100 MHz.

The 3G (UMTS and CDMA2000) research and development projects started in 1992.

In 1999, ITU approved five radio interfaces for IMT-2000 as a part of the ITU-R M.1457 Recommendation; Wi MAX was added in 2007.

3G, standing for third generation, is the third generation of wireless mobile telecommunications technology.

It is the upgrade for 2G and 2.5G GPRS networks, for faster internet speed.

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The latter group is the UMTS family, which consists of standards developed for IMT-2000, as well as the independently developed standards DECT and Wi MAX, which were included because they fit the IMT-2000 definition.