When Wi-Fi 7 gets here, it’s going to be big. Qualcomm would like you to think so anyway.
The company yesterday announced its second product line that supports the upcoming Wi-Fi standard, the Qualcomm Networking Pro Series Gen 3 family, aimed at the broadcasting side with an emphasis on the business environment.
The new family of chips is in addition to the FastConnect 7800 that the company announced earlier this year for the home environment and the clients’ side.
In a way, this development helps Qualcomm complete its answer to Broadcom’s new chips, unveiled last month, that covered the entire Wi-Fi 7 spectrums and user demographics.
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Qualcomm Networking Pro Series Gen 3: A new era of 10Gbps Wi-Fi
According to Qualcomm, the new Networking Pro Series Gen 3 products will:
“…combine Wi-Fi 7 features with Qualcomm Technologies’ intelligent multi-channel management technologies to improve speeds, lower latency, and enhance network utilization for users of Wi-Fi 6/6E devices while offering game-changing throughput and incredibly low latency for the next generation of Wi-Fi 7 client devices.”
Most importantly, they promise a new era of 10Gbps Wi-Fi by averaging all the new features and capabilities of Wi-Fi 7. (If you’re new to all this, the extra content below will fill it in quickly. )
Extra: Wi-Fi 7’s highlights
This portion of extra content is part of the explainer post on the new Wi-Fi 7 standard.
There are four areas where the new standard is better compared to the existing Wi-Fi 6 (and 6E).
1. The all-new 320MHz channel width
The first is the new and much wider channel width, up to 320MHz or double that of Wi-Fi 6/E.
Organically, this new channel width is only available on the 6GHz band, with up to three 320MHz channels. However, Wi-Fi 7 can combine portions of the 6GHz and 5GHz bands to create this new bandwidth — more in the Multi-Link Operation section below.
I detailed Wi-Fi channels in this post, but generally, the new channel width means Wi-Fi 7 can double the base speed, from 1.2Gbps per stream (160MHz) to 2.4Gbps per stream (320MHz).
So, in theory, a 4×4 broadcaster 6GHz Wi-Fi 7 can have up to 9.6 Gbps of bandwidth — or 10Gbps when rounded up.
In reality, depending on the actual configuration, Wi-Fi 7 routers and access points will be available in different speed grades, including those offering bandwidths higher or lower than 10Gbps on the 6GHz band.
Wi-Fi 7 also supports double the amount of partial streams, up to 16. As a result, technically, a 16-stream (16×16) Wi-Fi 7 6GHz band can deliver up to over 40Gbps of bandwidth, especially when considering the new QAM support below.
(We’ll likely only see 2×2 and maybe 4×4 specs on the receivers’ end with Wi-Fi 7. Existing Wi-Fi 6 and 6E so far only have seen 2×2 clients and up to 4×4 on the broadcasters.)
Again, to use the new 320MHz channel width, you will need a compatible client. Existing clients will connect using 160MHz at best. And in reality, the 160MHz will likely be the realistic sweet-spot bandwidth of Wi-Fi 7, just like the 80MHz in the case of Wi-Fi 6.
2. The 4K-QAM
QAM or quadrature amplitude modulation is a way to manipulate the radio wave to pack more information in the Hertz.
Wi-Fi 6 supports 1024-QAM, which itself is already impressive. However, Wi-Fi 7 will have four times that, or 4096-QAM. Greater QAM is always better.
As a result, Wi-Fi 7 will have a much higher speed and efficiency than previous standards when working with supported clients.
|Wi-Fi 6/E||Wi-Fi 7|
|Max Channel |
(Up to 3 on the 5GHz band and 7 on the 6GHz band)
(Up to 3 channels on the 6GHz band)
|Highest Modulation Order||1024-QAM||4096-QAM|
|Max Number |
of Spatial Streams
|Theoretical Full Band Bandwidth||9.6Gbps|
3. Multi-Link Operation
Multi-Link Operation or MLO is the most exciting and promising feature of Wi-Fi 7.
In a nutshell, MLO is Wi-Fi band aggregation. Like Link Aggregation (or bonding) in wired networking, MLO allows combining two Wi-Fi bands, 5GHz and 6GHz, into a single Wi-Fi network/connection.
The bonded link is also available in two modes: load balance or failover.
The former allows for combining the bandwidth of both bands into a single link. It’s excellent for those wanting to get the fastest possible wireless speed but requires support on the client end to work.
The latter, however, only requires support from the broadcasting side and can be a game-changer in a wireless mesh setup. With failover MLO, we can potentially count on having no signal drop or brief disconnection. And it’s also when seamless handoff (or roaming) can become truly seamless.
On top of that, on each band, a connection can also intelligently pick the best channel, or channel width, in real-time. In other words, it can channel-hop, just like Bluetooth, though likely less frequently.
(Up to Wi-Fi 6E, a Wi-Fi connection between two direct devices takes place in a single band, using a fixed channel, at a time.)
This new capability will help increase the efficiency of Wi-Fi 7’s range, allowing all of its bands to deliver faster speed over longer distances than previous standards.
In more ways than one, MLO is the best alternative to the existing so-called “Smart Connect” — using the same SSID (network name) and password for all the bands of a broadcaster — which doesn’t always work as smartly as expected.
Clearly, how MLO pans out remains to be seen but there seems to be no downside to this new capability.
4. Automated Frequency Coordination
Automated Frequency Coordination (AFC) applies mostly to outdoor 6GHz Wi-Fi applications, but it works indoors, too.
In an environment, there can be existing (incumbent) applications that already use the spectrum. For example, fixed satellite services (FSS) or broadcast companies might have already had licenses to use certain parts of the band.
As a newcomer, Wi-Fi (6E and 7) must not impact those existing services — a concept similar to the use of DFS channels in the 5GHz band.
That’s when AFC comes into play. The idea is that all new 6GHz broadcasters check with a registered database in real-time to confirm their operation will not negatively impact other registered members, including other Wi-Fi 6E or Wi-Fi 7 broadcasters.
The support for AFC means each Wi-Fi 7 broadcaster will have its own free airspace to operate, meaning vendors can use more power and more flexible antenna designs.
In short, AFC compliance will help a Wi-Fi broadcaster improve range and connection speeds by preemptively creating “private” airspace dependent on the current real-world situation, in which it can operate without the constraint of regulations, which is the case of Wi-Fi 6 and older standards.
A crude AFC analogy
Automated Frequency Coordination (AFC) is like checking with the local authorities for permission to close off sections of city streets for a drag race block party.
When approved, the usual traffic and parking laws no longer apply to the area, and the organizers can determine how fast traffic can flow, etc.
Still, AFC works best when there is enough air space for the number of broadcasters in a particular location at any given time.
The new chips Broadcom announced today collectively support all these new features of Wi-Fi 7.
Qualcomm says its new Networking Pro Series Gen 3 “enables systems with peak aggregate wireless capacity of 33 Gbps and point-to-point connections exceeding 10 Gbps.”
The wording is the key here. Aggregate means the total bandwidth of the chip, and you can’t get a single connection at that speed. And the point-to-point rate of 10Gbps is theoretical. The sustained rate will be much lower than that.
The point is to always take what the vendor says with a grain of salt, but it is safe to say the new chips will be able to deliver Multi-Gigabit real-world rates when working with supported clients.
Like all Wi-Fi 7 devices, Qualcomm’s new chips will operate in all three existing bands, including 2.4GHz, 5GHz, and 6GHz, and they will be available in Tri-band and Quad-band configurations.
Qualcomm emphasized the use of AFC in its new chips, which, when approved, affords hardware vendors more freedom in Wi-Fi broadcasting power. How this pans out, though, is still unclear.
In all, there are four new chips designed for broadcasters (routers and access points) in the Qualcomm Networking Pro Series Gen 3, including:
- Qualcomm Networking Pro 1620: A Quad-band, 16-stream, 33.1 Gbps peak wireless capacities for large environments, such as stadiums, large offices, or premium home mesh systems.
- Qualcomm Networking Pro 1220: Tri-band, 12-stream, 21.6 Gbps peak wireless capacity for enterprise, SMB, prosumer, and premium home mesh systems.
- Qualcomm Networking Pro 820: Quad-band, 8-stream, 13.7 Gbps peak wireless capacity for enterprise, SMB, prosumer, and premium home mesh systems.
- Qualcomm Networking Pro 620: Tri-band, 6-stream, 10.8 Gbps peak wireless capacity for enterprise, SMB, gaming, and home mesh systems.
Again, it’s worth noting that the numbers mentioned above are the total bandwidth of each chip. The real connection speed will depend on the client and will likely be much lower.
In any case, we won’t know how any of these will pan out until there is the actual hardware that supports them.
Qualcomm Networking Pro Series Gen 3: Availability
The race is on.
Like the case of Broadcom, Qualcomm says it’s now sampling the new chips to OEM partners. If things go well, we’ll be able to find Wi-Fi 7 hardware powered by these chips sometime next year.
It’d be interesting to see which chip maker, Broadcom or Qualcomm, will first deliver on the hardware promise.