什么是Wi-Fi 6，你为什么要关心它?

Subash Bohra

novembre 21, 2021

802.11 ax is Wi-Fi 6, the next gen wireless network standard. Read about its benefits and listen to experts discussing it via a podcast.

如果你像我一样, you’re always wondering when the best time is to buy a pc, 或者电话，或者科技小发明. Why? 因为当你买到最新最好的那一刻, a newer, better, faster, 推出更高容量版本!

The reality is, you will at some point need to upgrade your devices and if you’re an IT person, you’ll also need to upgrade your network to support the technology and the increasing number of varied devices taking advantage of it and the Wi-Fi it provides.

网络已经感受到了物联网带来的压力

你们的服务怎么样?? How long can you afford to wait for the next best thing just because you know there will always be something even better down the line? Your customers and staff are already pushing the limits of what your network can handle, 即使你去年才升级过. And, 如果你的网络还没有“那么糟糕”, it will soon be as WLAN radios have become so cheap that they are ending up in more and different devices that your network will end up having to support. The demand for connectivity and WLAN density will bring your older WLAN infrastructure to its knees.  那么，你能做些什么呢?

Wi-Fi 6 to the rescue

The latest and greatest Wi-Fi technology to be heading to market is 802.11ax，也被称为， Wi-Fi 6. What the “6” means is that it is the sixth generation of Wi-Fi technology, which is a lot easier to remember than the various letters placed after 802.11!

Wi-Fi 6 offers many benefits, however the most significant are:

1. Better raw performance. The multiple user, multiple input, multiple output (MU-MIMO) downlink/uplink and ability to scale up to eight streams help increase throughput by up to four times, and support for 1024 quadrature amplitude modulation (QAM) packs more bits further increasing capacity.

2. 更好的密集客户端环境支持 with orthogonal frequency division multiple access (OFDMA), for the massively connected world of users and the Internet of Things (IOT).

Lower latency which translates into better performing applications.

High density, higher throughput applications to benefit the most

Wi-Fi 6 will help applications in industries that have heavy throughput demand and high-density requirements. Industries such as airports where you have a high volume of users passing through at any given time, whether they are using the airport as a transfer point or as a departure location, Wi-Fi access for information or entertainment to pass some time is imperative.

Additional industries include higher education institutions like colleges and universities with their broad and diverse user base, applications, and devices. Healthcare is experiencing a growing need to modernize services with IoT. 智能城市有不同的部门, civic buildings, 每个公民都有特定的要求, 但它们都需要更好的网络性能, and the list goes on. Any network that must provide support for high throughput applications in a high-density environment will benefit the most from Wi-Fi 6.

2.4GHz & 5GHz deployment

我们都知道电流是2.4ghz频段仍然拥挤. However, Wi-Fi 6 brings some relief as all major improvements of this technology such as uplink MU-MIMO, downlink MU-MIMO, OFDMA, 1024-QAM, target wake time (TWT) and more are coming to both Wi-Fi bands. 这将显著提高2的效率.4GHz客户端将由物联网主导.

Wi-Fi 6可用吗?

Yes 802.11ax (Wi-Fi 6)现已可用. Every network manager should start thinking about 802.11ax，特别是如果你仍然使用802.11n or if you’re considering deploying many new wireless devices or into new spaces where WLAN will be in high demand.

How can ALE help?

ALE Wi-Fi solutions are found in organisations of all sizes, from small to extra-large, in various sectors such as government, healthcare, education 在小学或大型大学， transportation零售，甚至公用事业. 

Many of our customers look at upgrading their Wi-Fi infrastructure every 4-5 years and with Wi-Fi 6, some will begin transitioning earlier than that – at least partially, depending on areas where their network is reaching capacity as well as those who simply want the latest technological advances. In the next 24 months, we expect most enterprises to have some components of their infrastructure running on this newest technology.

Given that upgrading your network is not as fast as upgrading a personal device, now might be a good time to start planning your network infrastructure upgrade to Wi-Fi 6 before your users and IoT devices bring your network to its knees.

For more information

For more details on Wi-Fi 6 and what you can expect, check out my 与托利集团的凯文·托利的播客 看看新的 Wi-Fi6 APs.