??????????????????沿??4G?г?????????й??????????????????????????й?????????4G+?????4.5G???????????????????????????????????????????г???
?????????й???????????????????????????????4.5G???????????????300M??????50M??????????????4G????100M??3????
????????滮??????????????°?????????????????????????????Χ?????????????????????豸?????????2014??????????????4.5G???????????????2016????????á?
?????????ζ???й??????4G???????????4.5G?????й?????????趨????????????????????500?????????4.5G??????????????????????й????????????????????????4.5G??
?????????????“?й?????????????????????”???г??μ????й????????????????????4.5G?????????????????????ν??????????????????????????2/3/4G????????????????????й????????????????????????????????????????????????????????
????4.5G??4G??5G??????????????????????鲿???4G????????4.5G???罫??????????????????????????????????????????????????????100Mbps????????????????????4G?????????????10???????????300????????????????
???????????????????????????????????????????????г??????е???????????????????????ITU??????????????????5G???????????????????5G????????2020???????ɡ?
???????????????????????????????δ??5G???罫??????20Gbps???????????????10Gbps?????????????
??????????????????LTE???????????????????????????????????????4.5G???????????????????????????????????????????????????4.5G?????????????????????4G?豸?????????????5G?????????????????????4.5G???????????????????????????????г??????????????г??????????
????4.5G????й???????????????????????δ?????????????????????????????????????г?????о?????????á?2014?????й???????????4G????й??????г??????????????12.8%??????????????????15%?????????
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