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

ISO/IEC/IEEE 8802-11:2012 defines one medium access control (MAC) and several physical layer (PHY) specifications for wireless connectivity for fixed, portable, and moving stations (STAs) within a local area.

Technologies de l'information — Télécommunications et échange d'information entre systèmes — Réseaux locaux et métropolitains — Exigences spécifiques — Partie 11: Spécifications du contrôle d'accès du milieu sans fil (MAC) et de la couche physique (PHY)

General Information

Status
Withdrawn
Publication Date
04-Nov-2012
Withdrawal Date
04-Nov-2012
Current Stage
9599 - Withdrawal of International Standard
Start Date
09-May-2018
Completion Date
09-May-2018
Ref Project

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INTERNATIONAL ISO/IEC/
STANDARD IEEE
8802-11
First edition
2012-11-01
Introductory element —
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
Technologies de l'information — Télécommunications et échange
d'information entre systèmes — Réseaux locaux et métropolitains —
Exigences spécifiques —
Partie 11: Spécifications du contrôle d'accès du milieu sans fil (MAC) et
de la couche physique (PHY)
Reference number
ISO/IEC/IEEE 8802-11:2012(E)
IEEE 2012
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ISO/IEC/IEEE 8802-11:2012(E)

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This first edition of ISO/IEC/IEEE 8802-11 cancels and replaces ISO/IEC 8802-11:2005, which has been

technically revised. It also incorporates the Amendments ISO/IEC 8802-11:2005/Amd.4:2006,

ISO/IEC 8802-11:2005/Amd.5:2006 and ISO/IEC 8802-11:2005/Amd.6:2006.
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...

INTERNATIONAL ISO/IEC/
STANDARD IEEE
8802-11
First edition
2012-11-01
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
Technologies de l'information — Télécommunications et échange
d'information entre systèmes — Réseaux locaux et métropolitains —
Exigences spécifiques —
Partie 11: Spécifications du contrôle d'accès du milieu sans fil (MAC) et
de la couche physique (PHY)
Reference number
ISO/IEC/IEEE 8802-11:2012(E)
IEEE 2012
---------------------- Page: 1 ----------------------
ISO/IEC/IEEE 8802-11:2012(E)
COPYRIGHT PROTECTED DOCUMENT
© IEEE 2012

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,

electronic or mechanical, including photocopying and microfilm, without permission in writing from ISO, IEC or IEEE at the respective

address below.

ISO copyright office IEC Central Office Institute of Electrical and Electronics Engineers, Inc.

Case postale 56 3, rue de Varembé 3 Park Avenue, New York
CH-1211 Geneva 20 CH-1211 Geneva 20 NY 10016-5997, USA
Tel. + 41 22 749 01 11 Switzerland E-mail stds.ipr@ieee.org
Fax + 41 22 749 09 47 E-mail inmail@iec.ch Web www.ieee.org
E-mail copyright@iso.org Web www.iec.ch
Web www.iso.org
Published in Switzerland
ii © IEEE 2012 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/IEC/IEEE 8802-11:2012(E)
Foreword

ISO (the International Organization for Standardization) and IEC (the International Electrotechnical

Commission) form the specialized system for worldwide standardization. National bodies that are members of

ISO or IEC participate in the development of International Standards through technical committees established

by the respective organization to deal with particular fields of technical activity. ISO and IEC technical

committees collaborate in fields of mutual interest. Other international organizations, governmental and non-

governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO

and IEC have established a joint technical committee, ISO/IEC JTC 1.

IEEE Standards documents are developed within the IEEE Societies and the Standards Coordinating

Committees of the IEEE Standards Association (IEEE-SA) Standards Board. The IEEE develops its standards

through a consensus development process, approved by the American National Standards Institute, which

brings together volunteers representing varied viewpoints and interests to achieve the final product. Volunteers

are not necessarily members of the Institute and serve without compensation. While the IEEE administers the

process and establishes rules to promote fairness in the consensus development process, the IEEE does not

independently evaluate, test, or verify the accuracy of any of the information contained in its standards.

The main task of ISO/IEC JTC 1 is to prepare International Standards. Draft International Standards adopted

by the joint technical committee are circulated to national bodies for voting. Publication as an International

Standard requires approval by at least 75 % of the national bodies casting a vote.

Attention is called to the possibility that implementation of this standard may require the use of subject matter

covered by patent rights. By publication of this standard, no position is taken with respect to the existence or

validity of any patent rights in connection therewith. ISO/IEEE is not responsible for identifying essential

patents or patent claims for which a license may be required, for conducting inquiries into the legal validity or

scope of patents or patent claims or determining whether any licensing terms or conditions provided in

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entirely their own responsibility. Further information may be obtained from ISO or the IEEE Standards

Association.

ISO/IEC/IEEE 8802-11 was prepared by the LAN/MAN Standards Committee of the IEEE Computer Society

(as IEEE Std 802.11-2012). It was adopted by Joint Technical Committee ISO/IEC JTC 1, Information

technology, Subcommittee SC 6, Telecommunications·and·information·exchange·between·systems, in

parallel with its approval by the ISO/IEC national bodies, under the “fast-track procedure” defined in the

Partner Standards Development Organization cooperation agreement between ISO and IEEE. IEEE is

responsible for the maintenance of this document with participation and input from ISO/IEC national bodies.

This first edition of ISO/IEC/IEEE 8802-11 cancels and replaces ISO/IEC 8802-11:2005, which has been

technically revised. It also incorporates the Amendments ISO/IEC 8802-11:2005/Amd.4:2006,

ISO/IEC 8802-11:2005/Amd.5:2006 and ISO/IEC 8802-11:2005/Amd.6:2006.

ISO/IEC/IEEE 8802 consists of the following parts, under the general title 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

— Part 15-4: Wireless medium access control (MAC) and physical layer (PHY) specifications for low-rate

wireless personal area networks (WPANs)
Copyright © 2012 IEEE. All rights reserved. iii
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ISO/IEC/IEEE 8802-11:2012(E)
(blank page)
iv Copyright © 2012 IEEE. All rights reserved.
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ISO/IEC/IEEE 8802-11:2012(E)
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
IEEE Computer Society
Sponsored by the
LAN/MAN Standards Committee
IEEE
IEEE Std 802.11™-22012
3 Park Avenue
(Revision of
New York, NY 10016-5997
IEEE Std 802.11-2007)
USA
29 March 2012
Copyright © 2012 IEEE. All rights reserved. v
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ISO/IEC/IEEE 8802-11:2012(E)
(blank page)
vi Copyright © 2012 IEEE. All rights reserved.
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ISO/IEC/IEEE 8802-11:2012(E)
IEEE Std 802.11 -2012
(Revision of
IEEE Std 802.11-2007)
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
Sponsor
LAN/MAN Standards Committee
of the
IEEE Computer Society
Approved 6 February 2012
IEEE-SA Standards Board
Copyright © 2012 IEEE. All rights reserved. vii
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ISO/IEC/IEEE 8802-11:2012(E)

Abstract: This revision specifies 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. It also incorporates Amendments 1 to 10

published in 2008 to 2011.

Keywords: 2.4 GHz, 3650 MHz, 4.9 GHz, 5 GHz, 5.9 GHz, advanced encryption standard, AES,

carrier sense multiple access/collision avoidance, CCMP, channel switching, Counter mode with

Cipher-block chaining Message authentication code Protocol, confidentiality, CSMA/CA, DFS,

direct link, dynamic frequency selection, E911, emergency alert system, emergency services,

forwarding, generic advertisement service, high throughput, IEEE 802.11, interface, international

roaming, interworking, interworking with external networks, LAN, local area network, MAC,

measurement, medium access control, media-independent handover, medium access controller,

mesh, MIH, MIMO, MIMO-OFDM, multi-hop, multiple input multiple output, network advertisement,

network discovery, network management, network selection, off-channel direct link, path-selection,

PHY, physical layer, power saving, QoS, quality of service, PHY, physical layer, QoS mapping,

radio, radio frequency, RF, radio resource, radio management, SSP, SSPN, subscriber service

provider, temporal key integrity protocol, TKIP, TPC, transmit power control, tunneled direct link

setup, wireless access in vehicular environments, wireless LAN, wireless local area network,

WLAN, wireless network management, zero-knowledge proof
The Institute of Electrical and Electronics Engineers, Inc.
3 Park Avenue, New York, NY 10016-5997, USA
Copyright © 2012 by The Institute of Electrical and Electronics Engineers, Inc.

All rights reserved. Published 29 March 2012. 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 978-0-7381-7211-8 STD97218
PDF: ISBN 978-0-7381-7245-3 STDPD97218

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No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission

of the publisher.
viii Copyright © 2012 IEEE. All rights reserved.
---------------------- Page: 8 ----------------------
ISO/IEC/IEEE 8802-11:2012(E)

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Copyright © 2012 IEEE. All rights reserved. ix
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ISO/IEC/IEEE 8802-11:2012(E)
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x Copyright © 2012 IEEE. All rights reserved.
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ISO/IEC/IEEE 8802-11:2012(E)
Introduction

This introduction is not part of IEEE Std 802.11-2012, IEEE Standard for Information technology—

Telecommunications and information exchange between systems—Local and metropolitan area network—Specific

requirements—Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications.

This revision gives users, in one document, the IEEE 802.11 standard for wireless local area networks

(WLANS) with all the amendments that have been published to date.
Incorporating published amendments

The original standard was published in 1999 and reaffirmed in 2003. A revision was published in 2007,

which incorporated into the 1999 edition the following amendments: IEEE Std 802.11a™-1999,

IEEE Std 802.11b™-1999, IEEE Std 802.11b-1999/Corrigendum 1-2001, IEEE Std 802.11d™-2001, IEEE

Std 802.11g™-2003, IEEE Std 802.11h™-2003, IEEE Std 802.11i™-2004, IEEE Std 802.11j™-2004 and

IEEE Std 802.11e™-2005.

The current revision, IEEE Std 802.11-2012, incorporates the following amendments into the 2007 revision:

— IEEE Std 802.11k™-2008: Radio Resource Measurement of Wireless LANs (Amendment 1)

— IEEE Std 802.11r™-2008: Fast Basic Service Set (BSS) Transition (Amendment 2)
— IEEE Std 802.11y™-2008: 3650–3700 MHz Operation in USA (Amendment 3)
— IEEE Std 802.11w™-2009: Protected Management Frames (Amendment 4)
— IEEE Std 802.11n™-2009: Enhancements for Higher Throughput (Amendment 5)

— IEEE Std 802.11p™-2010: Wireless Access in Vehicular Environments (Amendment 6)

— IEEE Std 802.11z™-2010: Extensions to Direct-Link Setup (DLS) (Amendment 7)
— IEEE Std 802.11v™-2011: IEEE 802.11 Wireless Network Management (Amendment 8)
— IEEE Std 802.11u™-2011: Interworking with External Networks (Amendment 9)
— IEEE Std 802.11s™-2011: Mesh Networking (Amendment 10)

As a result of publishing this revision, all of the previously published amendments and revisions are now

retired.
Technical corrections, clarifications, and enhancements

In addition, this revision specifies technical corrections and clarifications to IEEE Std 802.11 as well as

enhancements to the existing medium access control (MAC) and physical layer (PHY) functions. Such

enhancements include incorporated interpretation requests.
Revised clause and annex numbering

In IEEE Std 802.11-2012, the order of clauses and annexes has also been revised. The result of this revised

order on the numbering of clauses and annexes is summarized in Figure A.
Copyright © 2012 IEEE. All rights reserved. xi
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ISO/IEC/IEEE 8802-11:2012(E)
IEEE Std 802.11-2007 Amendments IEEE Std 802.11-2012 Key:
Clause 1 Clause 1 Unchanged
Clause 2 Clause 2 Changed
Clause 3
Clause 3 No text
3.3
Clause 4
Clause 4
Clause 5
Clause 5
Clause 6
Clause 6
Clause 7
6.4
Clause 8
Clause 7
Clause 9 7.4
Clause 10 Clause 8
Clause 11 Clause 9
802.11w: Clause 11A Clause 10
801.11u: Clause 11B Clause 11
802.11s: Clause 11C Clause 12
Clause 12 Clause 13
Clause 13 Clause 14
Clause 14 Clause 15
Clause 15 Clause 16
Clause 16 Clause 17
Clause 17 Clause 18
Clause 18 Clause 19
Clause 19 Clause 20
802.11n: Clause 20 Annex A
Annex A Annex B
Annex B Annex C
Annex C Annex D
Normative
Annex D Annex E
Annexes
Annex E Annex F
Annex F Annex G
Annex G Annex H
Annex H Annex I
Annex I Annex J
Annex J Annex K
Annex K Annex L
Annex L Annex M
Annex M Annex N
Informative
Annex N Annex O
Annexes
Annex O Annex P
Annex P Annex Q
802.11k: Annex Q Annex R
802.11n: Annex R Annex S
802.11n: Annex S Annex T
802.11n: Annex T Annex U
802.11z: Annex U Annex V
802.11v: Annex V Annex W
802.11v: Annex W
802.11u: Annex X
802.11s: Annex Y
Figure A—Changes in clause numbers and annex letters
from 2007 revision to 2012 revision
xii Copyright © 2012 IEEE. All rights reserved.
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ISO/IEC/IEEE 8802-11:2012(E)
Contents

1. Overview................................................................................................................................................ 1

1.1 Scope.......................................................................................................................................... 1

1.2 Purpose....................................................................................................................................... 1

1.3 Supplementary information on purpose..................................................................................... 1

1.4 Word Usage ............................................................................................................................... 2

2. Normative references............................................................................................................................. 2

3. Definitions, acronyms, and abbreviations.............................................................................................. 5

3.1 Definitions ................................................................................................................................. 5

3.2 Definitions specific to IEEE 802.11 ........................................................................................ 24

3.3 Abbreviations and acronyms ...................................................................................................34

4. General description .............................................................................................................................. 44

4.1 General description of the architecture.................................................................................... 44

4.2 How WLAN systems are different .......................................................................................... 44

4.2.1 Introduction.............................................................................................................. 44

4.2.2 Wireless station (STA)............................................................................................. 44

4.2.3 Media impact on design and performance............................................................... 44

4.2.4 The impact of handling mobile STAs...................................................................... 45

4.2.5 Interaction with other IEEE 802® layers................................................................. 45

4.2.6 Interaction with non-IEEE-802 protocols................................................................ 45

4.3 Components of the IEEE 802.11 architecture ......................................................................... 45

4.3.1 General..................................................................................................................... 45

4.3.2 The independent BSS (IBSS) as an ad hoc network................................................ 46

4.3.3 STA membership in a BSS is dynamic.................................................................... 46

4.3.4 Distribution system (DS) concepts .......................................................................... 46

4.3.4.1 Overview............................................................................................... 46

4.3.4.2 Extended service set (ESS): The large coverage network .................... 47

4.3.4.3 Robust security network association (RSNA) ...................................... 48

4.3.5 Area concepts........................................................................................................... 49

4.3.6 Integration with wired LANs................................................................................... 50

4.3.7 QoS BSS: The QoS network.................................................................................... 51

4.3.8 Wireless LAN Radio Measurements ....................................................................... 52

4.3.8.1 General.................................................................................................. 52

4.3.8.2 Beacon................................................................................................... 53

4.3.8.3 Measurement Pilot ................................................................................ 53

4.3.8.4 Frame .................................................................................................... 53

4.3.8.5 Channel load ......................................................................................... 54

4.3.8.6 Noise histogram .................................................................................... 54

4.3.8.7 STA statistics ........................................................................................ 54

4.3.8.8 Location ................................................................................................ 54

4.3.8.9 Measurement pause............................................................................... 54

4.3.8.10 Neighbor report ..................................................................................... 54

4.3.8.11 Link measurement................................................................................. 54

4.3.8.12 Transmit stream/category measurement ............................................... 55

4.3.9 Operation in licensed frequency bands.................................................................... 55

4.3.9.1 General.................................................................................................. 55

4.3.9.2 Dynamic STA enablement (DSE) in licensed bands ............................ 55

Copyright © 2012 IEEE. All rights reserved. xiii
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ISO/IEC/IEEE 8802-11:2012(E)
4.3.9.3 Contention-Based Protocol (CBP) in nonexclusively licensed bands .. 55

4.3.9.4 Using DSE STA identification to resolve interference......................... 55

4.3.9.5 Further coexistence enhancements in nonexclusively licensed bands.. 55

4.3.10 High-throughput (HT) STA ..................................................................................... 56

4.3.11 STA transmission of data frames outside the context of a BSS .............................. 56

4.3.12 Tunneled direct-link setup ....................................................................................... 57

4.3.13 Wireless network management................................................................................ 57

4.3.13.1 Overview............................................................................................... 57

4.3.13.2 BSS Max idle period management........................................................ 58

4.3.13.3 BSS transition management.................................................................. 58

4.3.13.4 Channel usage ....................................................................................... 58

4.3.13.5 Collocated interference reporting.......................................................... 58

4.3.13.6 Diagnostic reporting....................
...

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