Wi-Fi 7 (IEEE 802.11be): what it is, how it works and what it does

Wi-Fi 7, formally designated IEEE 802.11be, is the most recent standard within the 802.11 family that defines wireless local area networks (WLAN). It is the direct successor to Wi-Fi 6 in the evolutionary sequence of the family.

Context within the 802.11 family

The 802.11 standards family comprises, in chronological order, the following generations: 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, Wi-Fi 6, and Wi-Fi 7. Each iteration introduces improvements in capacity, spectral efficiency, and traffic management over its predecessor.

Relationship to other Wi-Fi capabilities

The Wi-Fi ecosystem, to which 802.11be belongs, includes, in addition to the wireless access standard:

• Dual-band: simultaneous or alternating operation on two frequency bands (typically 2.4 GHz and 5 GHz), allowing traffic distribution and interference reduction.
• Wi-Fi Direct: a peer-to-peer connection mechanism between devices without requiring an intermediate access point.

The presence of Wi-Fi 7 in a device does not exclude the coexistence of these capabilities; they are complementary.

Scope and limitations of available information

The documentary evidence reviewed confirms the 802.11be designation and its position as the latest generation of the 802.11 family, as well as the coexistence of dual-band and Wi-Fi Direct within the same ecosystem. The sources analysed do not provide specific technical parameters (channel width, modulation scheme, MIMO stream count, maximum data rates) that would allow detailing the internal architecture of the standard.

Interpretation in a product

When a device or router declares compatibility with Wi-Fi 7 (802.11be), it indicates that its wireless radio implements the latest revision of the 802.11 family. In practice, this means the device belongs to the most recent generation of WLAN hardware and that, in combination with an equally compatible access point, it can leverage the improvements defined by the standard over Wi-Fi 6. Compatibility is bidirectional: a Wi-Fi 7 device can also operate with infrastructure from earlier generations (802.11ac, Wi-Fi 6, etc.).

Note: the designation "Wi-Fi 7" is the commercial name assigned by the Wi-Fi Alliance to the IEEE 802.11be standard; both terms are equivalent.