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йƶ4Gû½¶ƶյ
2018-05-25 10:57йֻԭߣ
Ӫ۷ӪЧ20184йƶ4Gû״γ½242.7򡣶йͨйԱй4Gû586򻧣йͨ4GûҲ406.2򻧡йƶ2Gûֻû112.1򻧡

Ϊʲô½ƺͳƿھйأĿǰйźйͨƳĻײͺͲײͣŵ100ԪȫҲмͥӶʹúܶûʹõ¿Ϊ4Gҽƶ뱣ſߴ2G

ŵIJƶ8-19Ԫײֻͣͨͽ绰ʹõͨ4Gƶֻܻ֤Ϣעụ񡣶ΪĵͨòûʷѸע°

ɴһʿָʵʹ4G㣬ôйƶ4Gû½ƾͲˡ

һԭĿǰӪ̶Ƶȫֻͨ趨ijΪ4GӺ󣬸ӾͱΪ2GDZáŵijЩӪ̶ֻ趨Լֵֻֻֻ2G͵ǹȥĵŶֻԼĿǰйƶȫͨ+ֻһƶֻôֻͨͱΪ2GΪ˵Ķֻ˸Լ4GƵƵΣȻFD-LTE˸Ӫ̵ƵΡ£ûѡ˵ͨĿΪôƶֻΪ

йƶڽҲһЩгƳ99Ԫزײֻͣ10G4·Ƴ58Ԫײ+20Ԫȫʵ78Ԫײͣ99Ԫ+1Ԫȫ͸ſۺ50ԪÿԼԼ160Ԫ5ײ͡

Ϊʲôйƶ2G4GǾȶֵ³ʧأʵϣܶط縲йأйƶ2Gã˺ܶûȻʹͨŵ4GΪȻҪƶ2Gͨĸƶ3GDz㣬ڱڵĸУƶ4GΪ̫ࡢڵԭźŲʱֻиɵۣźŻ䵽2Gÿ10KBٶȻ΢ƽʱͼƬϢйͨ͵žͲͬȻ4GҪûҪٺܶ࣬ʱ򷴶ٶȸ죬ǸDzڣ4Gǻ䵽3Gʱ3GٶҲǿԴﵽ100ൽKBԼ൱1-2M5MĿڴѧУ԰ȻƶҲдԼ29Ԫ500ӵײͣǺܶûȻͨŵͬλײ͡

Ȼйƶ2GǵԶͨ4GҲƣ˶ڳͱԶũûܶ˻Ըѡйƶƶвڵ2GƵظ󣬾4GƵĽϽԽĿǰƶ4Gʱûʹ˫ƶ2G4GĿԽ󡣶һƻȹ˾Ҳ˳ӦйƳ˫ֻйƶŻĿ顣


ĵַ:http://www.cnonline.org/2018/article/12185.html
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