What To Know About WiFi 7

The WiFi Alliance has officially finalized WiFi 7, aka 802.11be. WiFi 7 enabled laptops will have data rates between 4.0 to 5.8 Gigabits per second (Gbps).

Wi-Fi 7 operates on the same 2.4GHz, 5GHz, and 6GHz bands, so it’s backward compatible with previous Wi-Fi standards. But while older devices can still connect to Wi-Fi 7 networks, they won’t benefit from its higher performance or most of its new features. Some features, however, such as beamforming, which targets devices, may deliver higher data rates.

Eventually, the Federal Communications Commission (FCC) will finalize the Automated Frequency Coordination (AFC) system. This system will allow Wi-Fi 7 devices to operate at increased power levels. The fix, which firmware upgrades will distribute, will increase 7’s range and overall performance.

Some of the new WiFi 7 features include:

• Increased Channel Bandwidth: Wi-Fi 7 doubles the maximum channel bandwidth from 160MHz to 320MHz, allowing for faster data transmission. The bigger the MHz range, the more data you can pack into it. With this expanded bandwidth, you can see higher-than-ever wireless download speeds.
• 4K Quadrature Amplitude Modulation (QAM): This feature enables each signal to pack up to 120% more data into a channel than Wi-Fi 6E.
• Multi-Link Operation (MLO): This feature allows devices to spread connections across two or three bands (2.4 GHz, 5GHz, and 6GHz), enhancing speed and stability. If one band is out of range, the device seamlessly switches to another without needing to reconnect. This process is called bonding or aggregation.
• Improved Latency: The integration of all three bands reduces the airtime restriction, increasing the likelihood of immediate data packet transmission. This aspect is particularly beneficial for applications requiring low latency, such as online gaming and video conferencing.
• MU-MIMO Enhancement: Wi-Fi 7 supports more multi-user, multiple-input, multiple-output (MU-MIMO) spatial streams. This enables routers to communicate with more devices simultaneously. This feature enhances network efficiency, especially in crowded environments.
• Multi Resource Units (RU): With legacy Wi-Fi 6/6E and earlier, when part of a high-speed channel is being used by another device, the entire channel is unavailable. With Wi-Fi 7, the channel can be shared if there’s room available.

More information is available here.

All Images: WiFi Alliance.

David Shiller

David Shiller is the Publisher of LightNOW, and Senior Business Development Consultant at Capacity Consulting, a North American consulting firm providing business development services to advanced lighting manufacturers. The ALA awarded David the Pillar of the Industry Award. David has been co-chair of the ALA’s Engineering Committee since 2010. David established MaxLite’s OEM component sales into a multi-million dollar division. He invented GU24 lamps while leading ENERGY STAR lighting programs for the US EPA. David has been published in leading lighting publications, including LD+A, enLIGHTenment Magazine, LEDs Magazine, and more.

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