8 Questions to Ask Before You Deploy Wi-Fi 6E

6 GHz频段为长期以来要部署多个，重叠Wi-Fi网络的无线网络架构创造了一个令人迷人的机会，以提供具有不同的用户社区或具有不同RF性能特征的设备类别。这已经在过去的5 GHz中尝试了，由于渠道数量有限，但Wi-Fi 6Emakes it very feasible to create sub-bands for different types of devices and use cases for organizations with that requirement.

I’ve just authored anew Wi-Fi 6E technical paperthat offers some views on questions with which enterprise wireless architects will soon be confronted as they begin to deploy Wi-Fi 6E equipment. For example – given all the new channels:

1. 是否最好继续在一层覆盖层中部署所有渠道？
2. 对于某些企业来说，它是时候开始添加至少一个附加的AP层，并将新频道分离成分布以提供不同的设备类型？
3. 在这样的方法中，每层的最佳通道带宽是什么？
4. 5 GHz和2.4 GHz频段在托管网络上展开的作用应该是什么？

这是一种潜在的激进重新思考，大量管理的WLAN如何使用6 GHz频段可以尺寸和部署一旦Wi-Fi 6e所获得的临界质量。

SSID分配将在Wi-Fi 6e中更改

As an example of the issues addressed in the paper, consider how the traditional dual-band enterprise SSID layout could evolve in a tri-band 6E deployment. Table 1 shows the most deployed approach today, while table 2 illustrates a likely enterprise scenario with 6E.

使用6 GHz频段为企业无线架构提供了一个机会，以清新目前的无线需求，而不是简单地将5 GHz配置粘贴到新频段。表2说明了这一新乐队的迷人可能性。

Given all that new capacity, consider these additional questions:

1. Should you limit 6 GHz to devices belonging to the enterprise or at least those BYOD devices that have been formally onboarded via a Network Access Control (NAC) solution like ClearPass Onboard?
2. As the organization invests in native 6E devices for specific business applications, will there be a desire to limit their operation exclusively to 6 GHz to ensure consistent performance?
3. Is putting guest traffic in 6 GHz really a good idea – at least until the organization has a better idea of the answers to the first two questions – when 5 GHz provides the widest compatibility for unknown equipment types?
4. With three bands available, is it finally feasible to clear 2.4 GHz for exclusive use by all your IoT PSK devices?

With the proposed approach in Table 2, typical CorpNet devices like tri-band capable laptops could be given their choice of 5- or 6 GHz depending on local conditions and driver preferences. Each band would have a single band-specific SSID, including a 6 GHz-only Corp SSID and guest access confined to 5 GHz. Many other permutations are possible.

6 GHz的新分区策略

大多数进入prises that deploy tri-band Wi-Fi 6E access points will simply replace existing infrastructure, adding a third radio and treating 6 GHz as a single new pool of capacity. SSID allocation may evolve as described above, but otherwise this continues the longstanding practice in the enterprise of treating each band as a capacity block. In terms of channels, that approach can be visualized as follows:

该方法将为大多数组织部署管理Wi-Fi 6e系统工作。然而，诸如医疗保健和制造的某些垂直长期希望将未经许可频谱“分区”将未经许可的频谱“分隔”到离散的“层”中，以频率分离不同的最终用户社区以提供更多的确定性服务级别。考虑一家具有多种不同类别的医院，具有广泛发行的带宽，延迟和生命安全临界要求。多年来已经有几个尝试将5 GHz频段分为两个或三个子带（或“层”），以满足这些不同的需求，由于可用的频谱有限，这并未成功。

Enter Wi-Fi 6E.

How could this design philosophy be applied to the abundant greenfield spectrum in the 6 GHz band for organizations with these requirements? The figure below shows one possible approach where the architect partitions 6 GHz into two discrete blocks of new capacity: Band 6A and Band 6B. Each sub-band uses a different channel bandwidth. Realizing this architecture requires the organization to deploy a new and separate layer of APs and ethernet cabling, but there are so many channels available in 6 GHz that this can be easily justified given the QoS requirements. In contrast, 5 GHz is retained as a single contiguous block of capacity called Band 5.

Once you start down this rabbit hole, the world starts to look very different, and even more possibilities open up. To explore the possibilities, check out the new technical paper which looks extensively at varying partition schemes for different scenarios, how out-of-band AP discovery works in 6 GHz and how a 6 GHz-only SSID can be easily implemented to achieve the SSID configuration shown above. To be clear, partition strategies are likely only applicable to specific types of organizations, but Aruba believes they will be very well received in those verticals. I welcome your thoughts and feedback on these exciting new possibilities.

通过Wi-Fi 6e，是时候考虑分层方法了吗？

Wi-Fi 6E FAQ