Wednesday, May 31st 2023

Realtek Demos WiFi 7 at Computex 2023

Considering all the buzz around WiFi 7, there weren't many live demos at Computex, but Realtek had a demo running in its suite at the show. Realtek will offer both client and router/AP solutions, with their client product which goes under the RTL8922AE model name, coming in M.2 2230 and 1620 formats, where the latter is a solder down module. To simulate a real world scenario, Realtek was running a second radio to cause some additional interference, but the RTL8922AE test setup was still capable of delivering between 1,750 and 1,950 Mbps, which is almost twice as fast as WiFi 6, using a similar 2x2 antenna setup. This was obviously over a fairly short distance, so the question is how well WiFi 7 will work over longer distances.

The RTL8922AE has a claimed maximum sync speed of 2800 Mbps when connected to the 5 GHz and 6 GHz bands simultaneously and combining the bandwidth of both bands. However, it is limited to a 160 MHz channel bandwidth, whereas WiFi 7 can go up to a 320 MHz wide channel, but it's unclear if competing first gen clients will support this. The RTL8922AE also incorporates support for Bluetooth 5.4 and is as far as we're aware one of the first WiFi chips to support the upcoming standard that mostly focuses on improving BLE Audio and Auracast support. The RTL8922AE should launch sometime in the fourth quarter this year to Realtek's customers, so it might not appear on the market until early 2024.
On the router side, Realtek didn't have any product demos, but we got to see its roadmap, with most products scheduled for launch sometime in Q3 or Q4 of 2024. Initially, Realtek appears to be targeting the lower end of the WiFi 7 market, with 2.4 and 5 GHz radios, although its new router SoC will incorporate support for 2.5 Gbps Ethernet for at least the WAN and LAN ports, which is good news as we should see more routers with faster wired interfaces. The tri-band models coming in Q4 also appear to be more affordable models than what we've seen from the likes of Broadcom and Qualcomm, with Realtek topping out at a 2+2+4 design, which means the 2.4 and 5 GHz radios will have two antennas each and the 6 GHz band getting four antennas. Again, it seems like Realtek has decided to stop at 160 MHz wide channels here too, which means its higher rated product will go under the BE9400 moniker when all bands are combined.
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7 Comments on Realtek Demos WiFi 7 at Computex 2023

#1
Tigerfox
So MLO can only combine two bands or is that just for the first gen of NICs?
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#2
skates
I have the need for speed, but not liking Q4 2024 for products to appear. I can wait tho and looking forward to it. I just hope that wifi7 has better range than 6E. My 6E PC with desktop antenna has really short range and almost a clear site to the router. I've tried all sorts of 6E cards and antennas...high db, low db range. I'm hoping 7 is better.
Posted on Reply
#3
TheLostSwede
News Editor
TigerfoxSo MLO can only combine two bands or is that just for the first gen of NICs?
Not sure, Realtek doesn't seem to support more and I haven't seen MTK, Broadcom or Qualcomm at the show this year, so no chance to ask them.
skatesI have the need for speed, but not liking Q4 2024 for products to appear. I can wait tho and looking forward to it. I just hope that wifi7 has better range than 6E. My 6E PC with desktop antenna has really short range and almost a clear site to the router. I've tried all sorts of 6E cards and antennas...high db, low db range. I'm hoping 7 is better.
You won't have to wait that long for solution from Broadcom, MTK and Qualcomm, they are already starting to appear in retail from my understanding. I believe TP-Link will be one of the first, but Asus are showing things at Computex as well.

One question, did you power up your computer before installing the antenna on your WiFi cards? If you do that, you can fry the power amplifiers and then the card isn't going to work that well. Within the same room, it should work, but I haven't tested anything on the 6 GHz band, as I haven't got the money to play around with that kind of hardware.
Posted on Reply
#4
skates
TheLostSwedeNot sure, Realtek doesn't seem to support more and I haven't seen MTK, Broadcom or Qualcomm at the show this year, so no chance to ask them.


You won't have to wait that long for solution from Broadcom, MTK and Qualcomm, they are already starting to appear in retail from my understanding. I believe TP-Link will be one of the first, but Asus are showing things at Computex as well.

One question, did you power up your computer before installing the antenna on your WiFi cards? If you do that, you can fry the power amplifiers and then the card isn't going to work that well. Within the same room, it should work, but I haven't tested anything on the 6 GHz band, as I haven't got the money to play around with that kind of hardware.
No, I'll replace the antennas when the PC is off. That way the tests were all the same, placement were all the same, etc. I even tested with cable extenders and all tests were for 6E products, not 6. cable extenders were bad, so I switched to more expensive ones and they worked better. Also, low power DB antennas worked best, around 5 for 6E.
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#5
TheLostSwede
News Editor
skatesNo, I'll replace the antennas when the PC is off. That way the tests were all the same, placement were all the same, etc. I even tested with cable extenders and all tests were for 6E products, not 6. cable extenders were bad, so I switched to more expensive ones and they worked better. Also, low power DB antennas worked best, around 5 for 6E.
It's been a few years since I was involved in making these things, but I know there are a lot stricter power requirements on the "new" bands, which means that higher gain antennas might not help as much as it does on say 2.4 GHz.
You might want to have a look on the link below and check which frequency is best where you live, as even the 6 GHz band is very limited in terms of transmit power. You have three transmit power options, standard, low power and very low power, so if you're in Europe, Japan or Russia, you're kind of screwed, as it's all low or very low power, other parts of the world should have slightly better range, as long as you use the right frequency range.
en.wikipedia.org/wiki/List_of_WLAN_channels#6_GHz_(802.11ax_and_802.11be)
Posted on Reply
#6
bonehead123
WiFi 7 chips/cards are great & all, but a total waste of time & $$, UNLESS you also have a WiFi 7 router (which are just now becoming available) AND a really fast connection from your ISP to feed them, both of which are uber-mega-$$ :D
Posted on Reply
#7
zlobby
Meanwhile intel can't vet their 6th gen adapters in order...
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May 21st, 2024 23:29 EDT change timezone

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