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date:2013-09-28  view:5669

   gprs (general packet radio service): the speed is 56kbps or even be up to 114kbps.
   edge (enhanced data rate for gsm evolution): the max rate is up to 384kbps, usually is around 200kbit / s.
   td-scdma (time division-synchronous code division multiple access): 384kbps.
   hsdpa: high speed downlink packet access .
   td-scdma hsdpa: the max rate is 2.8mbps, newest products in market reach 3.6mbps, laboratory products      is up to 33m

   cdma2000 1x evdo (can understand the hsdpa of cdma2000): south korea, japan and other countries       have achieved a peak rate of 2.4mbps.
   wcdma, hsdpa: theoretical maximum speed is up to 14.4mbps, in hong kong, china; taiwan, china     ;korea, europe,the united states and other countries or regions, basic can achieve the rate of 3.6mbps,            7.2mbps can be achieved in some areas.




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