3G
Under the name " IMT -2000" (International Mobile Telecommunications -2000) ( 3G system ) were in the late 1980s, the requirements of ITU -R (Radio communication Sector of the International Telecommunications Union ) to a mobile system of the third generation combined. These requirements have been met by the three standards UMTS, CDMA2000 and UWC - 136. IMT -2000 evolved from the standard " Future Public Land Mobile Telecommunication System " ( FPLMTS ).
IMT- 2000 is a list of requirements from ITU recommendations of the M- range. More specifically:
- M.687 -2 IMT -2000 concepts and goals
- M.816 -1 framework for services
- M.817 IMT -2000 network architecture
- M.818 -1 satellites in IMT -2000
- M.819 -2 IMT -2000 for developing countries
- M.1034 -1 requirements for the air interface
- M.1035 framework for air interfaces and functions
- M.1036 frequency spectrum
- M.1078 security in IMT -2000
- M.1079 voice / data in the voice band
- M.1167 framework for satellite
- M.1168 framework for the management
- M.1223 evaluation of security mechanisms
- M.1224 vocabulary for IMT -2000
- M.1225 evaluation of transmission technologies