联通4G采用了TD-LTE和FDD-LTE两种制式,最高速率可达150Mbps,同时联通4G卡可
向下兼容3G网络,在无
4G网络或不支持4G网络的情况下也可以使用3G高速上网;移动4G采用TD-LTE单一制式,最高速率可达100Mbps。虽然联通跟电信都是采用双4G网络制式,但在无4G网络覆盖的地区,联通可向下兼容3G网络,网络速度最高可达42Mbps,是国内最快的3G网络,能同样保证高速上网体验哦!
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/314e251f95cad1c89532bcb06d3e6709c83d519f?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_450%2Ch_600%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
联通服务问卷调查
¥中国联通
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用不完的话费可送存买
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话费购
用不完的话费可送存买
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话费购
用不完的话费可送存买
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