什么是5g全双工模式_5G的完整形式是什么？

什么是5g全双工模式

5G：第五代 (5G: Fifth Generation)

5G is an abbreviation of the "Fifth Generation".

5G是“第五代”的缩写 。

It is the fifth-generation wireless technology for digital cellular networks that started broad operation in 2019. As with preceding standards, the enclosed regions are classified into sections called "cells", facilitated through service by individual antennas. Almost every foremost telecommunication service provider in the developed world is installing antennas or be determined to install them soon.

它是用于数字蜂窝网络的第五代无线技术，于2019年开始广泛运行。与先前的标准一样，封闭区域被划分为称为“小区”的部分，可通过单独的天线进行服务。发达国家中几乎所有最重要的电信服务提供商都在安装天线或决定尽快安装天线。

The classification of the frequency spectrum of 5G is categorized into:

5G频谱的分类分为：

Millimeter waves.
毫米波。
Mid-band.
中频带。
Low-band.
低频段。

Low-band uses a comparable frequency range as the antecedent, 4G.
低频段使用与前代4G相当的频率范围。

1)5G毫米波 (1) 5G millimeter wave)

It is the most rapid, with real speeds frequently being 1–2 Gbit/s down.
它是最快的，实际速度经常降低1-2 Gbit / s。
Frequencies are higher than 24 GHz getting up to 72 GHz, which is higher than the exceptionally high-frequency band's lower limit. The reach is small, therefore a large number of cells are necessary.
频率高于24 GHz，最高可达72 GHz，高于异常高频段的下限。范围很小，因此需要大量的单元。
Millimeter waves have complicatedness passing through a variety of walls and windows; as a consequence indoor exposure is limited.
毫米波穿过各种各样的墙壁和窗户会很复杂。结果，室内暴露受到限制。

2)5G中频 (2) 5G mid-band)

It is most extensively installed, in all the above 20 networks.
在以上20个网络中，它安装最广泛。
Speeds in a 100 MHz wide band are generally 100–400 Mbit/s down.
100 MHz宽带中的速度通常降低100–400 Mbit / s。
In the lab and infrequently in the field, speeds can go above a gigabit per second.
在实验室中，但在现场却很少，速度可以超过每秒千兆比特。

Frequencies installed are range from 2.4 GHz to 4.2 GHz. Sprint and China Mobile is using 2.5 GHz, at the same time as others are generally between 3.3 and 4.2 GHz, a range which put forwards improved reach.
安装的频率范围为2.4 GHz至4.2 GHz。 Sprint和中国移动使用的是2.5 GHz，同时其他设备的频率通常在3.3至4.2 GHz之间，这一范围提出了更高的覆盖范围。
A lot of regions can be covered up basically by advancing accessible towers, which lowers the charge.
推进可到达的塔楼，基本上可以覆盖很多地区，从而降低了收费。

3)5G低频段 (3) 5G low-band)

It proposes a comparable capacity to upgraded 4G.
它提出了与升级的4G相当的容量。
In the first week of December 2019, in the United States, T-Mobile and AT&T introduced low-band services.
在2019年12月的第一周，T-Mobile和AT＆T在美国推出了低频段服务。
T-Mobile CTO Neville Ray notifies that speeds on their 600 MHz 5G may be as short as 25 Mbit/s down.
T-Mobile首席技术官Neville Ray通知说，他们600 MHz 5G的速度可能会低25 Mbit / s。
AT&T, using 850 MHz, will also generally bring a smaller amount than 100 Mbit/s in 2019. The presentation will get better, however, it cannot be considerably larger than vigorous 4G in a similar spectrum.
使用850 MHz的AT＆T在2019年通常也带来小于100 Mbit / s的量。演示会变得更好，但是，它不能比相似频谱中的强劲4G大很多。

5G设备 (5G devices)

In March 2019, the Global Mobile Suppliers Association launched the industry's first database tracking global 5G device.
2019年3月，全球移动供应商协会推出了业界首个跟踪全球5G设备的数据库。
By October 2019, the number of proclaimed 5G devices had gone up to 129, all over 15 varieties of aspects from 56 sellers.
到2019年10月，所谓的5G设备数量已增加到129个，涵盖了来自56个卖家的15个方面的变化。

Reference: 5G

参考： 5G