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STANDARDS
IEEE Standard for Information Technology—
Telecommunications and Information Exchange between Systems
Local and Metropolitan Area Networks—
Specific Requirements
Part 11: Wireless LAN Medium Access Control
(MAC) and Physical Layer (PHY) Specifications
Amendment 2:
Enhanced Throughput for Operations in
License-exempt Bands above 45 GHz
IEEE Computer Society
Developed by the
LAN/MAN Standards Committee
IEEE Std 802.11ay™-2021
(Amendment to IEEE Std 802.11™-2020
as amended by IEEE Std 802.11ax™-2021)
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IEEE Std 802.11ay™-2021
(Amendment to IEEE Std 802.11™-2020
as amendment by IEEE Std 802.11ax™-2021)
IEEE Standard for Information Technology—
Telecommunications and Information Exchange between Systems
Local and Metropolitan Area Networks—
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
Developed by the
LAN/MAN Standards Committee
of the
IEEE Computer Society
Approved 25 March 2021
IEEE SA Standards Board
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The Institute of Electrical and Electronics Engineers, Inc.
3 Park Avenue, New York, NY 10016-5997, USA
Copyright © 2021 by The Institute of Electrical and Electronics Engineers, Inc.
All rights reserved. Published 28 July 2021. Printed in the United States of America.
IEEE and 802 are registered trademarks in the U.S. Patent & Trademark Office, owned by The Institute of Electrical and Electronics
Engineers, Incorporated.
Print: ISBN 978-1-5044-7506-8 STD24662
PDF: ISBN 978-1-5044-7507-5 STDPD24662
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Abstract: In this amendment to IEEE Std 802.11-2020, standardized modifications to both the
IEEE 802.11 physical layer (PHY) and the IEEE 802.11 medium access control (MAC) sublayer
are defined to enable at least one mode of operation capable of supporting a maximum throughput
of at least 20 gigabits per second (measured at the MAC data service access point), while
maintaining or improving the power efficiency per station.
Keywords: 60 GHz, beamforming, directional multi-gigabit, EDMG, Extended DMG,
IEEE 802.11™, IEEE 802.11ay™, millimeter-wave, MIMO, multiple input multiple output, variable
channel widths
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3
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