2. Towards fourth-generation (4G) mobile radio systems
2.1 ITU-R specifications for 4G: IMT-Advanced
In November 2008, the International Telecommunication Union (ITU-R) published the specifications for 4th generation (4G) mobile radio systems under the name "IMT-Advanced", following on from the 3rd generation specifications known as IMT-2000.
The main features of this specification are described in report M.2134 [ITU-R-M.2134] :
worldwide operation and roaming ;
compatibility of services within IMT mobile networks (IMT-2000) and fixed-line networks ;
interoperability with existing access networks (including UMTS, EPS and cdma2000 1x);
flexible bandwidth of 40 MHz...
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Towards fourth-generation (4G) mobile radio systems
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