STANDARDS
IEEEStandardforInformationTechnology—
TelecommunicationsandInformationExchangebetweenSystems
LocalandMetropolitanAreaNetworks—
SpecificRequirements
Part11:WirelessLANMediumAccessControl
(MAC)andPhysicalLayer(PHY)Specifications
IEEEComputerSociety
Developedbythe
LAN/MANStandardsCommittee
IEEEStd802.11™‐2020
(RevisionofIEEEStd802.11‐2016)
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IEEE Std 802.11™-2020
(Revision of IEEE Std 802.11-2016)
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
Developed by the
LAN/MAN Standards Committee
of the
IEEE Computer Society
Approved 3 December 2020
IEEE SA Standards Board
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Copyright © 2021 by The Institute of Electrical and Electronics Engineers, Inc.
All rights reserved. Published 26 February 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 978-1-5044-7283-8 STD24548
PDF: ISBN 978-1-5044-7284-5 STD24548
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Abstract: Technical corrections and clarifications to IEEE Std 802.11 for wireless local area
networks (WLANs) as well as enhancements to the existing medium access control (MAC) and
physical layer (PHY) functions are specified in this revision. Amendments 1 to 5 published in 2016
and 2018 have also been incorporated into this revision.
Keywords: 2.4 GHz, 256-QAM, 3650 MHz, 4.9 GHz, 5 GHz, 5.9 GHz, 60 GHz, advanced
encryption standard, AES, audio, beamforming, carrier sense multiple access/collision avoidance,
CCMP, channel switching, clustering, contention based access period, Counter mode with Cipher-
block chaining Message authentication code Protocol, confidentiality, CSMA/CA, DFS, direct link,
directional multi-gigabit, dynamic allocation of service period, dynamic extension of service period,
dynamic frequency selection, dynamic truncation of service period, E911, EDCA, emergency alert
system, emergency services, fast session transfer, forwarding, GCMP, generic advertisement
service, high throughput, IEEE 802.11™, international roaming, interworking, interworking with
external networks, LAN, local area network, MAC, management, measurement, medium access
control, media-independent handover, medium access controller, mesh, MIS, millimeter-wave,
MIMO, MIMO-OFDM, multi-band operation, multi-hop, multi-user MIMO, multiple input multiple
output, network advertisement, network discovery, network management, network selection,
noncontiguous frequency segments, OCB, path-selection, personal basic service set, PHY,
physical layer, power saving, QoS, quality of service, quality-of-service management frame, radio,
radio frequency, RF, radio resource, radio management, relay operation, spatial sharing, SSPN,
subscriber service provider, television white spaces, TPC, transmit power control, video, wireless
access in vehicular environments, wireless LAN, wireless local area network, WLAN, wireless
network management, zero-knowledge proof
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