移动通信

themobilecommunication

yunhuiwu200830800224

themobilecommunicationiskindofcommunicationbetweenthemobilebody，orbetweenmobilebodyandfixedbody.mobilebodycanbepeople，alsocanbemovingobjectslikethecars，trains，ships，radioandsoon。

mobilecommunicationsconsistsoftwoparts：spacesystemsandgroundsystem：mobilesatelliteradioandantennas;gateways，basestations

thedevelopmentofmobilecommunicationtechnology

thefirstgenerationofmobilecommunicationisgivenprioritytosimulationtechnology，onlyprovidesthevoicebusiness，nointernationalstandard;