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5G时代,你准备好了吗? – 译学馆
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5G时代,你准备好了吗?

A 5G World Is on the Horizon, But How Will It Work?

有人说5G将会彻底改变我们的生活
They say 5G is going to completely change our lives –
从简单的游戏 驾驶
from as simple to gaming, to driving,
到复杂的医疗护理
to as complex as medical care.
这种改变将是我们无线系统十年一遇的升级
This shift will be a once in a decade upgrade for our wireless systems.
现在 这一切听起来很棒
Now, that all sounds great,
但这种手段到底是什么?
But, what is it?
还有我什么时候才能得到?
And when can I get it?
当前领先的芯片公司高通
Well, there’s a brand new,
推出了全新的第二代蜂窝模块
second generation, cellular module from the current leading chip company,
它宣称能让你的手机达到5G速度的神力
Qualcomm that boasts the almighty power of 5G speeds for your phone.
可惜 我们还没有5G手机
Except,we all don’t exactly have 5G phones yet,
也没有5G移动网络
nor a 5G mobile network.
然而 今年这些改变可能都将发生
However, this might be the year all of that changes.
如果你刚刚接触速度这个概念
If you’re just being brought up to speed, 5G,
5G又被称为第五代无线网络交流
is known as the fifth generation of wireless network communication.
每次定义蜂窝网络内部工作方式的
Every time the technical rules that
技术规则发生改变时
define the inner workings of cellular networks changes,
我们就获得新的“一代” 或科技的“G”
we get a new “ generation, ” or “ G ” of technology,
这意味着想要收割最新科技的果实
meaning to reap the benefits,
人们得去买全新的手机
people have to buy whole new phones,
而运营商则需要安装新的传输设备
and carriers will need to install new transmission equipment
来达到他们承诺的速度
to deliver the speeds they promised.
当我们在1G时代 我们只有语音通话
When we got 1G it was for voice calls only,
但到了2G我们有了短信
but then 2G gave us text messages, 3G added
3G增加了对多媒体的支持 而如今我们不能想象没有3G的生活
that multimedia support that we can’t imagine being without,
比如 视频聊天和更快的速度
like vidchats and faster speeds,
现在我们有了4G-它具备了3G所有的功能
and now we have 4G – which has all the features
但是速度从14M
of 3G BUT an added bump of speeds from 14
增加到100M 而这改变了游戏规则
Mbps to 100Mbps which changed the game.
现在我们拥有高清视频聊天 高清移动电视
Now we have video chats in HD, HD mobile TV,
还有实时流媒体应用 但这下一代
and live streamed apps But this next one is
将会是大改变
gonna be big.
5G将会给用户带来前所未有的最快速连接性能
5G is anticipated to give users the fastest connectivity they’ve ever experienced.
它的速度如此之快
Its thought to be so fast it’d compete
足以和我们家中现有的光纤电缆相媲美
with our current fibre optic cables we have in
并会从10倍到100倍的
our homes, and about ten to a hundred times faster
提升你现有手机的速度
than the phone you currently have in your hand.
但除了主要的益处 即可以一秒下载8K视频
But other than the major benefits of downloading “ 8K ” videos in seconds,
以及流畅使用VR和AR(再见缓冲)
and using VR and
为什么这个世界需要数据传输变得如此之快
AR seamlessly (goodbye buffering)why doesthe world want data coming in so fast? Well,
5G连接将会减少软件响应或延时时间
5G connectivity promises reduced latency, or lag time,
使其几乎为零
to practically zero.
这意味着每一个设备之间几乎都可以实时通信
Meaning devices can communicate with eachother in nearly real-time.
我们谈论的是使用传感器
We’re talking about major improvements
做出重大决策的设备
in the responsiveness in devices that use sensors
将在响应能力方面有重大提升
to make important decisions;
比如需要突然刹车的自动驾驶汽车
like self-driving cars that need to suddenly brake, or industrial
或者能被派至危险区域
robots that can be sent to
及在任何地方都能远程控制的工业机器人
hazardous areas and be controlled remotely from anywhere in
甚至 是在医疗领域的任何事情
the world or better yet, anything in the healthcarefield.
从远程医疗 精密手术机器人
From telemedicine, precision surgical robots,
到远程手术 乃至虚拟身体治疗疗程
to remote surgery, or even virtual physical therapy sessions.
这些都能做 而且收发数据零缓冲
All this without any data slow down.
不过等一下 这一切都是这么运作的?
But wait, how does any of this work? Well,
5G系统将在更小的平台上运行
5G systems will run on smaller what they call,
即所谓的蜂窝基站
cell sites, that divide their territory
将地域划分成不同部分 然后
into different sections. Then,
蜂窝基站和设备之间
exchanges between cell sites and devices are made
通过无线电波进行数据编码
with encoded data, through radio waves,
即OFDM 得以实现 这种编码方式与4G LTE
called OFDM,.This encoding isn’t much different from
使用的基本没有区别 但5G使用的光谱频率不同
what 4G LTE uses, but the frequencies they use within the spectrum are.
现在4G LTE所使用的
Right now the low-band spectrum
低波段光谱过于拥挤
that 4G LTE travels on is overly crowded and therefore
因此它的速度最高只能达到2G每秒
we can only expect speeds up to 2Gs. Which,
顺便说一下
by the way,
威瑞森每月仅40美元的价格似乎可以接受
doesn’t seem too bad running on Verizon visible for only $ 40/month,
但这方面我们稍后会再谈
but we can get that more later on.
5G目前可以通过几种电波传输
5G can currently travel on a couple of kindof airwaves.
一个低波段频率 一个高波段频率
One low-band frequency and one high-frequency.
计划是
The plans are
让5G低频通过公司现有的4G蜂窝基站来运行
for low-band frequency 5G to operate through 4G cell sites that companies already have in place.
但编码方式将变得更加灵活
But the encoding will be more flexible and
而且需要使用更大的通道
use a bigger channel size to get up to 50
来达到比LTE快百分之五十的速度
percent better speeds than LTE.
这还挺不错
This isn’t too bad.
但由于我们想要的是千兆 超高速
But since we want the multi-gigabit, ultra-fast, speeds,
因此我们需要在毫米波频谱上
we’re going to use higher frequencies
使用更高的频率
on the millimeter wave spectrum.
虽然它的频率稍有不同
Now it slightly varies,
但毫米波是大约频率高于24GHz
but millimeter waves are signals estimated to be above 24GHz or
或30GHz范围的信号
30GHz range where there’s
也就是有充足的频段来创建超级高速的大频道
enough spectrum available to create big channels for very high speeds.
但研究人员一直苦恼的是
But what researchers have been struggling
这些波长很容易受堵
with is the fact that these wavelengths are easily blocked
并只能传播很短的距离
and can only go very short distances.
因此需要一个新的基础设施
So a new infrastructure is needed.
这就是为什么我们需要小型蜂窝基站
That’s why we have to get the small cellsites. Hundreds,
数百甚至上千的低功率基站
if not thousands of lower-power
(每个只输出2-10瓦)
base stations ( outputting only 2-10 watts each
必须建立在城市及周边地区
) will have to be built in and around city
来保持连接性能就位
homes to keep the connectivity in place.
美国的一些试验区
There are select places
实际上已经有这种基站
around the U.S. that actually already have some of them, BUT we
但是我们还需要升级设备 才能得到想要的速度
still need our devices to upgrade to get the speeds we want.
这就是高通芯片的用武之地
This is where the Qualcomm chip comes in.
高通是一家无线芯片制造商
Qualcomm is a wireless chip maker and they
从3G时代起 他们就一直走在
’ ve been the forefront of advancements in chip
在芯片科技的最前沿
technology since the 3G era.
他们的新产品 创造性地命名为骁龙X55 5G
Their new one, creatively called Snapdragon X55 5G,
是能和他们最新的毫米波天线QTM525
is a millimeter wave modem that would
一起运行的一种毫米波调制解调器
run along their new millimeter wave antennathe QTM525.
其理念是 这些模块将有助于
The idea is that these modules will help
智能手机连接到新型的 改进后的5G网络
smartphones connect to the new and improved network of
同时不影响之前的2-4G连接
5G AS WELL AS stay connected to the previous “ g’s ” 2 through 4.
他们预计手机制造商将在其设备
They anticipate that phone makers will embed three or four modules
嵌入三或四个模块
in their devices, so
因此 设备总能从一个模块获得信号
the device always gets a signal from one module even
即便其它模块被什么东西挡住了
if the others are blocked by something
比如你的手
like your hand.
并不仅仅是只有高通
And Qualcomm is not the only one,
还有许多其他品牌
there are other brands that are in the
在努力使5G面向市场
works to make 5G happen for the consumer market. So,
因此 为了使我们真正享受强大的5G速度的成果
for us to really reap the benefits of this all-powerful 5G speed.
整个基础设施都需要得到改变
The whole infrastructure needs to change.
没有5G网络 你就不能使用5G手机
You can’t have the 5G phone without the 5G network,
当然你也用不了5G网络
and you can’t have the 5G network
直到小型蜂窝基站建好
until you get the mini cell towers,
不过科技公司们正在大步前进中
but companies are making massive strides.
大部分手机和网络将在2019年年底计划推出
Most of the phones and networks are planning to launch at the end of 2019.
所以请留神
So keep your eyes peeled,
那时你的老手机就该淘汰了
And your phones ready to throw out

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关于5G的科普视频,五分钟让你了解什么是5G,5G怎么运行,带给我们什么好处,还有多久实现

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