Ӫ3GٶʵԱ:WCDMACDMA֮ƶTD
2010-04-05 22:25йֻԭ
3GѡǺܶûǵĽ⡣ʵʹǷһȤǾƶֻûѡƶſûܶѡţйͨǴķѡá
ôӪ̵3GأؼǿʵӦöǹѡͳûĿڱ
ӱߵйƶ2GEDGE㷺ٶ236.8KbpsʵӦõص߳̿Դﵽ20KBÿ롣йŵTD-HSDPAٶȴﵽ2.8MbpsʵٶԼ150KB
йŲCDMA 1XEVDO RevAǰ2Gǿٶ153KbpsʵٶȿԼܴﵽ18Kÿ룬3.1Mк1.8MBpsУʵٶȿԴﵽ200Kÿ롣
йͨHSDPAҵDL 7.2Mbps/UL 384kbpsӱʵʲԿ͵EVDOһˮƽһճҳԴﵽ100-150KУP2P߿Դﵽ200-250KBСϴԼԴﵽ100KB
ʵٶйͨйԵ10%йƶԵ20-30%Ȼⶼϸ߷ʱڣ߷綼ӵ¡
ӸйϷͱǷdz㣬رC+WLANܷ㣬WLANԴﵽʵֵ1MBľٶȡȻٶ죬ʵճʹôԼԴﵽ300-400KBÿ롣йͨڱǽϺãϷԲһ㣬йƶȫΧǽϲģܺԽйءӸΪйСйͨϴйƶ
ʷйȫƳÿ100Ԫ60СʱȫεCDMA1X+EVDOײͣͬʱ30СʱWLANDzֵΪ15Gÿ¡ءߡ棬һ100Ԫ80-150Сʱıʱ
йƶйͨĹٷʷѾΪ100Ԫ£ÿ2GԸߵ
ʷйкܴơ
ˣΪĿǰ3G縲ѾϵһڴܱߵũҲǡͨȻԲDzùͨüDZҲСӡ縲ǶԣϷûʹõšʷѽǶȿŵǰʱʷѶȽϴûDZȽϻġͨƶΪСòʷײٶȿѾû壨ƶͨ3Gȥһ壬˵Ѿ100Ԫˣ
Ϸûѡţʹý϶ûҲʹõšôѡмô
ĿǰгҪ0ABEVDO
0汾EVDO Rev.02.4M153.6K
AԻΪšƷ6085оƬΪٶȿ죬źźá
OĿǰг5500оƬΪٶA80%,۸A50%ͨû
O汾֧ٶУ153.6Kbps У2.4Mbps
A汾ٶ У1.8Mbps У3.1Mbps
B汾ٶ9MĿǰֻһЩشеIJֵС
۸0汾۸ʹԼ100-200Ԫֹ̭۸͡A汾ļ۸180-350ԪҡB汾ڲԴǵͣгм
3GĸٷչᵽٶȺֻ2010.4Ŀǰ״̬δƶͨӴ3GͶ룬͵ŵIJСͬʱ²ҲƳʱײ͡
ĵַ:http://www.cnonline.org/2010/article/11424.html