Wi-Fi 7 – the upcoming standard – a collection of knowledge about Computerworld

Wi-Fi 6 and Wi-Fi 6E have not yet gained the desired popularity, but IEEE is already working on the standard Wi-Fi 7. What news will the next generation wireless network?

Wi-Fi is short for words Wireless Loyalty. describes set of standardsis used for setting up wireless computer networks. Wi-Fi remains a trademark Wi-Fi Alliance – an organization that certifies devices that use the standard IEEE 802.11. That’s it IEEEInstitute of Electrical and Electronics Engineers (Institute of Electrical and Electronics Engineers) Takes care of developing Wi-Fi standards.

Modern home router

Modern home router

Currently, the latest generation is Wi-Fi Wi-Fi 6 Introduced to the market in 2019. Meanwhile, he also appeared Wi-Fi 6EThis is the evolution of Wi-Fi 6. Both standards are not yet adequately popularized (Wi-Fi 5 is still the most widely used protocol), but The IEEE working group is already completing the most important work on the Wi-Fi 7 standard. The world’s largest network equipment manufacturers are already working on their first devices with Wi-Fi 7 – the company is a leader here Qualcommat which fair MWC 2022 (February 2022) announced the first Wi-Fi 7 compatible chip – FastConnect 7800.

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Wi-Fi 7 – 802.11be will focus on performance and bandwidth

Wi-Fi 7 is the trade name for the IEEE 802.11be wireless standard. Extremely high productivity. According to available information (April 2022) Wi-Fi 7 will remain It was ratified in 2024. This means that There is still some time to exerciseBut Equipment manufacturers are testing the existing capabilities of the new standard on their own.

Basic Wi-Fi News 7

Basic Wi-Fi News 7

Wi-Fi 7 will be in the spotlight ensuring the highest possible efficiencywill be achieved due to the greater width of the channels. We should not forget that Wi-Fi 7 will use the capabilities of existing standards – mainly Wi-Fi 5 and Wi-Fi 6 / 6E.

Wi-Fi 7 is theoretically more efficient than Thunderbolt 3

IEEE is proud of that Wi-Fi 7 will significantly increase the bandwidth of wireless networks. The information provided by the developers of the standard is very promising. The maximum bandwidth of Wi-Fi 7 should be up to 46 Gb / s – Wi-Fi 6 to 4.8 times faster than wired connection Lightning 3 With a capacity of 40 Gb / s, which can be found on many expensive computers in 2016-2020.

In fact, we should expect smaller performance gains. Mike Roberts, Qualcomm’s Global Vice President of Product Marketing, announced the modem FastConnect 7800 will be 60% more efficient than Wi-Fi 6E-based solutions. It is expected to have bandwidth 5.8 Gb / s during normal use. According to the competition – companies MediaTekWi-Fi 7 will be 2.4 times faster than Wi-Fi 6. These numbers will increase over time – we are talking about network devices developed before the standard was completed.

Wi-Fi 7 will also be smarter and provide less latency

Wi-Fi 7, like 5G, is designed to provide high performance regardless of the number of devices connected to a base station.. The Wi-Fi 7 network will use the 2.4 GHz, 5 GHz and 6 GHz bands (provided with Wi-Fi 6E).

Wi-Fi 7 - a set of knowledge about the upcoming standard

New to use, additional channels allowing high-capacity communication. This solution will be used in inter alia, wireless networks Mesh Wi-Fi.

Wi-Fi 7 will allow you to change lanes smoothly during data transfer, which is not possible with Wi-Fi 6.

Routers with Wi-Fi 7 will use Multi-link functionalityallows you to connect at different frequencies at the same time while maintaining a single MAC interface. Wi-Fi 7 will allocate data packets to the least downloaded channelbecause the frequency of data transmission is no longer an important part of the overall system.

Multi-Link technology described by Qualcomm

Multi-Link technology described by Qualcomm

Forget setting up 2.4 GHz and 5 GHz networks

Thanks to the feature Multi-Link Users of network devices based on Wi-Fi 7 will not have to worry about manual selection of channels and communication bands. The system will continuously scan the nearest network environment and automatically select the optimal connection settings with the client device.

There will also be an option that will allow you fast data transfer between two devices using all available tapes.

Qualcomm boasts that the FastConnect 7800 modem can be connected in two bands – 5 GHz and 6 GHz using four streams.

Wider channels mean more bandwidth

Wi-Fi 6 uses 160 MHz channels. Wi-Fi 7 will be able to use 320 MHz channels. Wider bandwidth also has a positive effect on data transfer performance reduces the risk of disruption during communication. You can manage them thanks to the Wi-Fi 7 solution perforation of the preambleallows change the bandwidth of the channel without interrupting the connection.

Mesh Wi-Fi system

Mesh Wi-Fi system

Wi-Fi 7 does the same 1024-QAM. I’m talking about a way effective increase in bandwidth by increasing the number of bits transmitted by analog signal. According to the IEEE this is an increase of about 25% from the 256-QAM used in Wi-Fi 5.

Smart channel selection = low latency

Qualcomm highlights another important change. Thanks to the smart channel selection, Wi-Fi 7 will significantly reduce delays during wireless connection. According to Qualcomm, it’s the perfect solution when used in conjunction with Wi-Fi 7 technology AR and VRand cloud computing and plays in the cloud.

AFC (Automated Frequency Coordination) as an ace on Wi-Fi sleeve 7

Wi-Fi 7 will also receive feature support AFC. Its task is to coordinate the use of a specially designed spectrum to operate in the 6 GHz band. Created by Solution US Federal Communications CommissionFor unlicensed devices with Wi-Fi 7 (802.11be) to work with other equipment previously licensed to use the 6 GHz band.

Wi-Fi 6 module on the laptop Source: Mika Baumeister / Unsplash

Wi-Fi 6 module on the laptop

Source: Mika Baumeister / Unsplash

This solution will prevent the loss of quality associated with the wireless network.

The 6 GHz band (5.925 – 7.125 GHz to be precise) was introduced by the FCC just two years ago. It will be fully operational only after the launch of devices based on the use of Wi-Fi 7 networks.

Thanks to AFC, it will be possible to use the bandwidth offered by the 6 GHz network while maintaining the higher performance available in the 5 GHz network..

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