新的三星 S10(Samsung S10)刚刚发布，您可能错过了一些规格。WiFi 6已准备就绪！你问什么是WiFi 6？您(Did)甚至知道有不同类型的WiFi吗？
如果您确实知道有不同类型的WiFi，您可能知道它们是 802.11a、802.11b、802.11n 或 802.11ac。如果你数数，那是 5 个不同的版本。
WiFi 联盟(WiFi Alliance)是一个由帮助制定WiFi标准的公司和个人组成的组织，它决定让您更容易区分版本。802.11n 现在被称为WiFi(WiFi 4) 4，802.11ac 现在是WiFi 5，下一个热门是WiFi 6。但如果要使用它的全名，它是IEEE 802.11ax。
那么，WiFi 6 有何不同？
正如您对任何技术的新版本所期望的那样，WiFi 6速度更快。它支持高达 9.6 Gbps的(Gbps)数据速率(data rate)。与您的WiFi (Compare)5 相比(WiFi 5)
，它的速度几乎快了三倍。
WiFi6还支持一次连接更多设备。这对您在家可能不是问题。但是，当您几乎在任何地方出现在公共场所时，都可以使用免费WiFi。
有没有注意到如果它是一个拥挤的咖啡店(coffee shop)，数据是如何爬行的？这将通过 WiFi 6 将使用的两种技术得到改善：正交频分多址 (OFDMA)(orthogonal frequency division multiple access (OFDMA))和多用户多输入多输出 (MU-MIMO)(multi-user multiple input, multiple output (MU-MIMO))。
更快，为更多人服务
OFDMA允许更多人在路由器的任何单个通道上进行连接。这是增加连接人数的一种更有效的方法，同时还可以减少延迟（缓慢）并保持高数据传输率。
MU-MIMO还增加了数据吞吐量和同时连接的客户端数量。它通过允许一次传输更多数据来实现这一点略有不同。
一个简单的类比是，从一家只有一个收银机(cash register)且没有条形码扫描仪的商店，到一家拥有一堆带有条形码扫描仪的新收银通道的商店。可以更快地以相同质量为更多设备提供服务。
这很重要，因为根据经济合作与发展(Economic Co-operation and Development)组织 (OECD (OECD))(Organisation)的一份报告，预计普通家庭很快就会拥有大约 50 台联网设备(average household can expect to have about 50 Internet-connected devices)
信号更强(Stronger Signal)，电池更持久(Longer Lasting)
WiFi 6还将在其范围内具有改进的信号功率(signal power)，从而实现更快的数据速率和更稳定的信号。
目标唤醒时间(Target Wake Time)( TWT ) 是WiFi 6 将使用的另一种技术。许多WiFi芯片的制造商(WiFi)高通公司表示，在使用(Qualcomm)WiFi时，它将有助于“……手机的功耗降低 33%……” 。基本概念是您的手机WiFi只会在需要传输数据时唤醒。
WiFi 6到底有多好？
假设你在客厅里看(living room)Netflix，你的伴侣在卧室里看Hulu ，你(Hulu)十几岁的女儿(teenage daughter)在她的房间里播放Spotify，同时和她的朋友视频聊天，你的小儿子在 6 小时后进入史诗般的Fortnite 狂欢(Fortnite binge)。
当你看到你的Netflix 口吃和质量下降(Netflix stutter and drop quality)时，你会畏缩吗？不适用于WiFi 6。所有这一切都可以继续进行，而您家中的WiFi 6网络您不会注意到。(t notice)
这就是 WiFi 6 所承诺的。
我的旧手机(Older Phone Work)可以使用WiFi 6吗？
简短的回答是肯定的。将旧设备连接到WiFi 6路由器不会获得
WiFi 6的所有好处，但您将能够连接和使用它。这可能意味着您可以
在拥挤的咖啡店(coffee shop)更轻松地连接到 WiFi(WiFi easier) ，并且如果他们有WiFi 6接入点，则(access point)传输速率(transfer rate)会更好。
所以，是的，您的手机、平板电脑、计算机和物联网(IoT)设备都可以与WiFi 6路由器配合使用。
我的 WiFi 6(My WiFi 6) 电话(Phone Work)可以与我的旧路由器(My Old Router)一起使用吗？
同样，简短的回答是肯定的。就像我们在上一节中介绍的那样，您不会获得连接到 WiFi 6 路由器的好处。较旧的路由器仍然有其限制，您的手机无法超过它们。仅仅因为你有一辆法拉利并不(Ferrari doesn)意味着(t mean)你可以忽略速度限制。
我需要 WiFi 6 路由器吗？
这是一个古老的需要与(need versus)想要的困境。如果您想获得新WiFi 6标准的所有好处，您将需要一个 WiFi 6 路由器来搭配您的WiFi 6手机、平板电脑、计算机和智能设备。如果您对当前的路由器感到满意，那么不，您不需要购买新路由器。
当您购买新路由器时，请记住我们关于增强WiFi 信号(WiFi signal)和提高其性能的建议。您想从中榨取每一滴性能。
哪些设备将配备 WiFi 6？
三星 Galaxy S10(Samsung Galaxy S10)是迄今为止推出WiFi 6的最大手机品牌(phone name)。期待看到Apple、Google和其他所有人在他们的下一个产品发布中跟随潮流。您还将开始发现汽车内置 WiFi 6(WiFi 6 built in to cars)。
高通公司制造了一款WiFi 6芯片，该芯片将“支持千兆车载(Gigabit in-car)热点，并在整个车辆中提供高效的 Wi-Fi 连接(Wi-Fi connectivity)，支持多显示器上的超高清 (ultra-HD) 视频流，来自兼容设备的屏幕镜像和无线备用摄像头，以及蓝牙 5.1(Bluetooth 5.1)支持”。
此外，大多数WiFi 路由器(WiFi router)制造商已经在市场上推出WiFi 6
路由器。价格从 130 美元左右开始上涨。
关于WiFi 6 ，我(WiFi 6)还(Else)应该知道什么？
取决于路由器或设备(router or device)的制造商，预计会看到增强的蓝牙 5.1(Bluetooth 5.1)功能，与新的 5G 蜂窝数据标准协同作用。预计今年最好的 Android 手机将具备 5G 功能。还将集成WPA-3 安全性以更好地保护数据。(WPA-3 security for better data protection.)基本上，一切都会变得更好。
图片来源：
Linksys Mu-Mimo 解释：https://www.amazon.co.uk/b?ie=UTF8&node=9836110031
Galaxy S10 截图 – https://www.samsung.com/us/mobile/galaxy-s10/performance/
高通汽车用例 – https://www.qualcomm.com/news/media-center/images
华硕路由器 – https://images-na.ssl-images-amazon.com/images/I/51L44eF4GYL._SL1000_.jpg
Wifi 4-5-6比较(Comparison)， WiFi 4-5-6命名约定 – wifi.org
What is WiFi 6 and Is It Worth Waiting For?
The new Sаmsung S10 was just released and there was something in the specifications thаt you mаy have missed. It’s WiFi 6 ready! What is WiFi 6, you aѕk? Did you even know that there were different typеs of WiFi?
If you did know there were different types of WiFi, you probably knew them as 802.11a, 802.11b, 802.11n, or 802.11ac. If you’re counting, that’s 5 different versions.
The WiFi Alliance, an organization of companies and people that help develop WiFi standards, has decided to make telling versions apart easier for you. 802.11n is now known as WiFi 4, 802.11ac is now WiFi 5 and the next hot thing is WiFi 6. But if you want to use its full name, it’s IEEE 802.11ax.
So, What’s Different About WiFi 6?
Like you’d expect with a new version of any tech, WiFi 6 is
faster. It supports a data rate of up to 9.6 Gbps. Compare that to your WiFi 5
and it’s almost three times as fast.
WiFi6 also supports connecting more devices at once. This might not have been an issue for you at home. But, when you’re out in public almost anywhere, there’s free WiFi to be had.
Ever notice how if it was a crowded coffee shop, the data crawled? That will be improved by two technologies WiFi 6 will use: orthogonal frequency division multiple access (OFDMA) and multi-user multiple input, multiple output (MU-MIMO).
Faster, For More People
OFDMA allows for more people to connect on any single
channel of the router. This is a more efficient way to increase the number of
people who connect, while also reducing latency (slowness) and maintain a high
rate of data transfer.
MU-MIMO also increases data throughput and the number of clients connecting at once. It does this slightly differently by allowing more data to be transferred at once.
A simple analogy would be going from a store with only one cash register and no barcode scanners to a store with a bunch of new cashier lanes with barcode scanners. More devices can be served with the same quality, faster.
That’s important because the average household can expect to have about 50 Internet-connected devices before long, according to a report from the Organisation for Economic Co-operation and Development (OECD)
Stronger Signal, Longer Lasting Batteries
WiFi 6 will also have an improved signal power within its
range, allowing for faster data rates and a more stable signal.
Target Wake Time (TWT) is another technology that WiFi 6
will use. Qualcomm, the maker of many WiFi chips, says it will help, “…phones
to use up to 33% lower power…” when using WiFi. The basic concept is that your
phones WiFi will only wake up when it needs to transfer data.
How Good is WiFi 6 Really?
Let’s say you’re watching Netflix in the living room, your partner is watching Hulu in the bedroom, your teenage daughter is streaming Spotify in her room while video chatting with her friends, and your younger son is 6 hours into an epic Fortnite binge.
Would you cringe as you saw your Netflix stutter and drop quality? Not with WiFi 6. All that could go on and you wouldn’t notice with a WiFi 6 network in your home.
That’s what WiFi 6 promises.
Will My Older Phone Work with WiFi 6?
The short answer is yes. You won’t get all the benefits of
WiFi 6 by connecting your older device to a WiFi 6 router, but you will be able
to connect and use it. It may mean that you’re able to connect to WiFi easier
in a crowded coffee shop and have a better transfer rate if they have a WiFi 6
access point.
So, yes, your phone, tablet, computer, and IoT devices will
work with a WiFi 6 router.
Will My WiFi 6 Phone Work with My Old Router?
Again, the short answer is yes. And just like we covered in
the last section, you won’t have the benefits you would by connecting to a WiFi
6 router. The older router still has its limits and your phone cannot exceed
them. Just because you have a Ferrari doesn’t mean you can ignore the speed
limits.
Do I Need a WiFi 6 Router?
This is the age-old quandary of need versus want. If you
want to have all the benefits of the new WiFi 6 standard, you will need a WiFi
6 router to go with your WiFi 6 phones, tablets, computers, and smart devices.
If you’re content with your current router, then no, you don’t need to get a
new router.
When you do get a new router, keep in mind our advice on boosting your WiFi signal and improving its performance. You want to squeeze every drop of performance out of it.
What Devices Will have WiFi 6?
The Samsung Galaxy S10 is the biggest phone name to hit the market with WiFi 6 so far. Expect to see Apple, Google, and everyone else follow the trend with their next product releases. You’ll also start to find WiFi 6 built in to cars.
Qualcomm has made a WiFi 6 chip that will, “support Gigabit in-car hotspot and to deliver efficient Wi-Fi connectivity throughout the vehicle, supporting ultra-high definition (ultra-HD) video streaming on multiple displays, screen mirroring from compatible devices and wireless back-up cameras, as well as Bluetooth 5.1 support”.
Also, most WiFi router manufacturers already have WiFi 6
routers on the market. Prices start at around $130 and go up from there.
What Else Should I Know About WiFi 6?
Depending on the maker of the router or device, expect to see enhanced Bluetooth 5.1 capabilities, synergies with the new 5G cellular data standard. Expect 5G capabilities on the best Android phones this year. There will also be integration of WPA-3 security for better data protection. Basically, everything gets better.
Image credits:
Linksys Mu-Mimo Explanation:https://www.amazon.co.uk/b?ie=UTF8&node=9836110031
Galaxy S10 Screenshot –https://www.samsung.com/us/mobile/galaxy-s10/performance/
Qualcomm Automotive Use Case –https://www.qualcomm.com/news/media-center/images
Asus Router –https://images-na.ssl-images-amazon.com/images/I/51L44eF4GYL._SL1000_.jpg
Wifi 4-5-6 Comparison, WiFi 4-5-6 Naming Convention – wifi.org
