IEEE 802.11ay-2021
Specific Requirements Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 2: Enhanced Throughput for Operation in License-exempt Bands above 45 GHz
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About This Item
802.11ay-2021 is a wireless LAN technical standard for specific requirements in the 802.11 family, focused on MAC and PHY specifications for enhanced throughput in license-exempt bands above 45 GHz. It is relevant to communication, networking, and computing systems that need very high-capacity short-range wireless links. As a superseded document, 802.11ay-2021 remains useful for reference, comparison, and legacy design or compliance work where this amendment’s requirements still matter.
Overview of 802.11ay-2021
This standard addresses an amendment to Wireless LAN Medium Access Control and Physical Layer requirements, with emphasis on operation in license-exempt spectrum above 45 GHz. In practical terms, it defines technical expectations for very high data rate wireless connections and the behavior needed to support them at the protocol and physical layer. 802.11ay-2021 is most relevant when evaluating performance, interoperability, and implementation details for advanced millimeter-wave WLAN systems and related engineering documentation.
Typical use cases
Typical applications include short-range, high-throughput wireless links between devices that benefit from operation in high-frequency, license-exempt bands. The standard may be used when reviewing access points, client devices, test setups, and integrated communication equipment designed for dense data transfer. It is also relevant for engineering teams working on wireless backhaul, in-room connectivity, and specialized networking hardware where MAC and PHY behavior must be aligned with the same technical specification.
Why it matters
For product development and procurement, 802.11ay-2021 helps establish a clear technical reference for performance, interoperability, and verification. Using the same requirements across design and testing can reduce integration risk and support more consistent system behavior in the above-45 GHz band. Because this document is superseded, it is especially useful for tracing prior implementations, comparing revisions, and confirming whether legacy equipment or documentation still aligns with the applicable requirements.
- Wireless LAN MAC and PHY requirements
- License-exempt operation above 45 GHz
- Enhanced throughput focus
- Reference for legacy and superseded designs
- Useful for testing and compliance review
- Publication Date: 2021
- Standard Status: Superseded
- Publisher: IEEE
- Subject: Communication, Networking and Broadcast Technologies; Components, Circuits, Devices and Systems; Computing and Processing
- Official IEEE: Doi link
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