?? ?????????5G???????
![](https://image.chezhanri.com/2019/0708/20190708102559607.jpg)
????:1????????:????????
2????92??95?
3??????????
4????????
5?????????
?????6??????????21?? (?? ??)??????????????????????21??????????,??5G???????????
????????????????,??????
????????????2021???5G???????????,??(DNB)??????????????,??????,???5G???????????????????????????,???????5G???????????,???
????,?????????????,??5G?????????????????????,?????????????????????????5G?????????????????,?????,?????????,???(??????) ????:???????