[LINK] Wi-Fi 7

[Scott Howard]

Why is that a bad thing?

2.4Ghz gives significantly higher range at lower power than 5/6Ghz.
Crowding of those frequencies isn't a huge issue for such devices as their
bandwidth requirements are generally tiny. The best thing that can happen
for these devices is for other (higher bandwidth) devices to move to 5/6Ghz
and in doing so remove much of the contention that occurs on the 2.4Ghz
space.

(Or move to protocols like Thread, but that's a completely different
conversation - and even then it's still 2.4Ghz!)

  Scott


On Tue, Dec 12, 2023 at 10:23 AM Fernando Cassia <fcassia at gmail.com> wrote:

> Meanwhile most IoT cheap kit - door sensors, smart bulbs and the like-
> still use the crowded 2.4GHz band in the 'n' spec.
>
> :(
>
> FC
>
> On Tue, Dec 12, 2023, 01:58 Stephen Loosley <stephenloosley at outlook.com>
> wrote:
>
> > Wi-Fi 7 to get the final seal of approval early next year, new standard
> is
> > up to 4.8 times faster than Wi-Fi 6
> >
> > By Anton Shilov published about 17 hours ago
> >
> >
> https://www.tomshardware.com/networking/wi-fi-7-to-get-the-final-seal-of-approval-early-next-year-delivers-48-times-faster-performance-than-wi-fi-6
> >
> > The Wi-Fi Alliance has announced that the Wi-Fi 7 specification will be
> > finalized by the end of the first quarter, opening the doors to adopting
> > standardized hardware by businesses and enterprises.
> >
> > "Wi-Fi CERTIFIED 7, based on IEEE 802.11be technology, will be available
> > before the end of Q1 2024," the Wi-Fi Alliance states.
> >
> > "Wi-Fi 7 devices are entering the market today, and Wi-Fi CERTIFIED 7
> will
> > facilitate worldwide interoperability and bring advanced Wi-Fi
> performance
> > to the next era of connected devices."
> >
> > Wi-Fi 7 is shaping up to be a big deal in wireless connections, offering
> > speeds up to 40 Gbit/s. This could make it a strong alternative to
> > traditional wired Ethernet for most people.
> >
> > It achieves these speeds using three frequency bands: 2.40 GHz, 5 GHz,
> and
> > 6 GHz, using a channel width of 320 MHz and 4096-QAM.
> >
> > Furthermore, Wi-Fi 7 builds on what Wi-Fi 6 and Wi-Fi 6E started,
> > including features like MU-MIMO and OFDMA to speed up connections. All
> > told, this delivers up to a 4.8X improvement over Wi-Fi 6.
> >
> > While numerous Wi-Fi 7-badged adapters for PCs and routers are on the
> > market today, they follow the so-called 'draft' Wi-Fi 7 specification.
> >
> > This does not make them any worse on the consumer level, and most
> existing
> > 'draft' devices will support the full standard after a firmware update.
> But
> > for enterprises residing in fully crowded office buildings, fully
> ratified
> > devices are a must because they must work over very specific frequencies.
> >
> > One of the wrinkles about the new technology is that the Wi-Fi Alliance
> is
> > positioning them for AR/VR, which means direct wireless connections,
> which
> > are hard to get in modern environments.
> >
> > "Wi-Fi 7 supports superior connectivity for emerging use cases with high
> > levels of interactivity and immersion," another statement by the Alliance
> > reads.
> >
> > "As user demand for high capacity, low latency technologies like
> AR/VR/XR,
> > cloud computing, and Industrial IoT grows across market segments, Wi-Fi 7
> > devices will deliver optimized performance, even in dense environments in
> > the 2.4 and 5 GHz band.
> >
> > Countries with access to 6 GHz will experience the full scope of Wi-Fi
> 7’s
> > unparalleled performance."
> >
> > --
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> >
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