International Standard ISO/IEC 8802-11: 1999(E) Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications -Description
Abstract: The medium access control (MAC) and physical characteristics for wireless local area networks (LANs) are specified in this standard, part of a series of standards for local and metropolitan area networks. The medium access control unit in this standard is designed to support physical layer units as they may be adopted dependent on the availability of spectrum. This standard contains three physical layer units: two radio units, both operating in the 2400–2500 MHz band, and one baseband infrared unit. One radio unit employes the frequency-hopping spread spectrum technique, and the other employs the direct sequence spread spectrum technique.
Keywords: ad hoc network, infrared, LAN, local area network, mobility, radio frequency, wireless
Content
1. Overview
1.1 Scope
1.2 Purpose
2. Normative references
3. Definitions
4. Abbreviations and acronyms
5. General description
5.1 General description of the architecture
5.1.1 How wireless LAN systems are different
5.2 Components of the IEEE 802.11 architecture
5.2.1 The independent BSS as an ad hoc network
5.2.2 Distribution system concepts
5.2.3 Area concepts
5.2.4 Integration with wired LANs
5.3 Logical service interfaces
5.3.1 Station service (SS)
5.3.2 Distribution system service (DSS)
5.3.3 Multiple logical address spaces
5.4 Overview of the services
5.4.1 Distribution of messages within a DS
5.4.2 Services that support the distribution service
5.4.3 Access and confidentiality control services
5.5 Relationships between services
5.6 Differences between ESS and IBSS LANs
5.7 Message information contents that support the services
5.7.1 Data
5.7.2 Association
5.7.3 Reassociation
5.7.4 Disassociation
5.7.5 Privacy
5.7.6 Authentication
5.7.7 Deauthentication
5.8 Reference model
6. MAC service definition
6.1 Overview of MAC services
6.1.1 Asynchronous data service
6.1.2 Security services
6.1.3 MSDU ordering
6.2 Detailed service specification
6.2.1 MAC data services
7. Frame formats
7.1 MAC frame formats
7.1.1 Conventions
7.1.2 General frame format
7.1.3 Frame fields
7.2 Format of individual frame types
7.2.1 Control frames
7.2.2 Data frames
7.2.3 Management frames
7.3 Management frame body components
7.3.1 Fixed fields
7.3.2 Information elements
8. Authentication and privacy
8.1 Authentication services
8.1.1 Open System authentication
8.1.2 Shared Key authentication
8.2 The Wired Equivalent Privacy (WEP) algorithm
8.2.1 Introduction
8.2.2 Properties of the WEP algorithm
8.2.3 WEP theory of operation
8.2.4 WEP algorithm specification
8.2.5 WEP Frame Body expansion
8.3 Security-Related MIB attributes
8.3.1 Authentication-Related MIB attributes
8.3.2 Privacy-Related MIB attributes
9. MAC sublayer functional description
9.1 MAC architecture
9.1.1 Distributed coordination function (DCF)
9.1.2 Point coordination function (PCF)
9.1.3 Coexistence of DCF and PCF
9.1.4 Fragmentation/defragmentation overview
9.1.5 MAC data service
9.2 DCF
9.2.1 Carrier-sense mechanism
9.2.2 MAC-Level acknowledgments
9.2.3 Interframe space (IFS)
9.2.4 Random backoff time
9.2.5 DCF access procedure
9.2.6 Directed MPDU transfer procedure
9.2.7 Broadcast and multicast MPDU transfer procedure
9.2.8 ACK procedure
9.2.9 Duplicate detection and recovery
9.2.10 DCF timing relations
9.3 PCF
9.3.1 CFP structure and timing
9.3.2 PCF access procedure
9.3.3 PCF transfer procedure
9.3.4 Contention-Free polling list
9.4 Fragmentation
9.5 Defragmentation
9.6 Multirate support
9.7 Frame exchange sequences
9.8 MSDU transmission restrictions
10. Layer management
10.1 Overview of management model
10.2 Generic management primitives
10.3 MLME SAP interface
10.3.1 Power management
10.3.2 Scan
10.3.3 Synchronization
10.3.4 Authenticate
10.3.5 De-authenticate
10.3.6 Associate
10.3.7 Reassociate
10.3.8 Disassociate
10.3.9 Reset
10.3.10 Start
10.4 PLME SAP interface
10.4.1 PLME-RESET.request
10.4.2 PLME-CHARACTERISTICS.request
10.4.3 PLME-CHARACTERISTICS.confirm
10.4.4 PLME-DSSSTESTMODE.request
10.4.5 PLME-DSSSTESTOUTPUT.request
11. MAC sublayer management entity
11.1 Synchronization
11.1.1 Basic approach
11.1.2 Maintaining synchronization
11.1.3 Acquiring synchronization, scanning
11.1.4 Adjusting STA timers
11.1.5 Timing synchronization for frequency-hopping (FH) PHYs
11.2 Power management
11.2.1 Power management in an infrastructure network
11.2.2 Power management in an IBSS
11.3 Association and reassociation
11.3.1 STA association procedures
11.3.2 AP association procedures
11.3.3 STA reassociation procedures
11.3.4 AP reassociation procedures
11.4 Management information base (MIB) definitions
12. Physical layer (PHY) service specification
12.1 Scope
12.2 PHY functions
12.3 Detailed PHY service specifications
12.3.1 Scope and field of application
12.3.2 Overview of the service
12.3.3 Overview of interactions
12.3.4 Basic service and options
12.3.5 PHY-SAP detailed service specification
13. PHY management
14. Frequency-Hopping spread spectrum (FHSS) PHY specification for the 2.4 GHz Industrial, Scientific, and Medical (ISM) band
14.1 Overview
14.1.1 Overview of FHSS PHY
14.1.2 FHSS PHY functions
14.1.3 Service specification method and notation
14.2 FHSS PHY-specific service parameter lists
14.2.1 Overview
14.2.2 TXVECTOR parameters
14.2.3 RXVECTOR parameters
14.3 FHSS PLCP sublayer
14.3.1 Overview
14.3.2 PLCP frame format
14.3.3 PLCP state machines
14.4 PLME SAP layer management
14.4.1 Overview
14.4.2 FH PHY specific MAC sublayer management entity (MLME) procedures
14.4.3 FH PHY layer management entity state machines
14.5 FHSS PMD sublayer services
14.5.1 Scope and field of application
14.5.2 Overview of services
14.5.3 Overview of interactions
14.5.4 Basic service and options
14.5.5 PMD_SAP detailed service specification
14.6 FHSS PMD sublayer, 1.0 Mbit/s
14.6.1 1 Mbit/s PMD operating specifications, general
14.6.2 Regulatory requirements
14.6.3 Operating frequency range
14.6.4 Number of operating channels
14.6.5 Operating channel center frequency
14.6.6 Occupied channel bandwidth
14.6.7 Minimum hop rate
14.6.8 Hop sequences
14.6.9 Unwanted emissions
14.6.10 Modulation
14.6.11 Channel data rate
14.6.12 Channel switching/settling time
14.6.13 Receive to transmit switch time
14.6.14 PMD transmit specifications
14.6.15 PMD receiver specifications
14.6.16 Operating temperature range
14.7 FHSS PMD sublayer, 2.0 Mbit/s
14.7.1 Overview
14.7.2 Four-Level GFSK modulation
14.7.3 Channel data rate
14.8 FHSS PHY management information base (MIB)
14.8.1 Overview
14.8.2 FH PHY attributes
14.9 FH PHY characteristics
15. Direct sequence spread spectrum (DSSS) PHY specification for the 2.4 GHz band designated for ISM applications
15.1 Overview
15.1.1 Scope
15.1.2 DSSS PHY functions
15.1.3 Service specification method and notation
15.2 DSSS PLCP sublayer
15.2.1 Overview
15.2.2 PLCP frame format
15.2.3 PLCP field definitions
15.2.4 PLCP/DSSS PHY data scrambler and descrambler
15.2.5 PLCP data modulation and modulation rate change
15.2.6 PLCP transmit procedure
15.2.7 PLCP receive procedure
15.3 DSSS physical layer management entity (PLME)
15.3.1 PLME_SAP sublayer management primitives
15.3.2 DSSS PHY MIB
15.3.3 DS PHY characteristics
15.4 DSSS PMD sublayer
15.4.1 Scope and field of application
15.4.2 Overview of service
15.4.3 Overview of interactions
15.4.4 Basic service and options
15.4.5 PMD_SAP detailed service specification
15.4.6 PMD operating specifications, general
15.4.7 PMD transmit specifications
15.4.8 PMD receiver specifications
16. Infrared (IR) PHY specification
16.1 Overview
16.1.1 Scope
16.1.2 IR PHY functions
16.1.3 Service specification method and notation
16.2 IR PLCP sublayer
16.2.1 Overview
16.2.2 PLCP frame format
16.2.3 PLCP modulation and rate change
16.2.4 PLCP field definitions
16.2.5 PLCP procedures
16.3 IR PMD sublayer
16.3.1 Overview
16.3.2 PMD operating specifications, general
16.3.3 PMD transmit specifications
16.3.4 PMD receiver specifications
16.3.5 Energy Detect, Carrier Sense, and CCA definitions
16.4 PHY attributes
Annex A Protocol Implementation Conformance Statement (PICS) proforma
A.1 Introduction
A.2 Abbreviations and special symbols
A.2.1 Status symbols
A.2.2 General abbreviations
A.3 Instructions for completing the PICS proforma
A.3.1 General structure of the PICS proforma
A.3.2 Additional information
A.3.3 Exception information
A.3.4 Conditional status
A.4 PICS proforma—ISO/IEC 8802-11: 1999
A.4.1 Implementation identification
A.4.2 Protocol summary, ISO/IEC 8802-11: 1999
A.4.3 IUT configuration
A.4.4 MAC protocol
A.4.5 Frequency-Hopping PHY functions
A.4.6 Direct sequence PHY functions
A.4.7 Infrared baseband PHY functions
Annex B Hopping sequences
Annex C Formal description of MAC operation
C.1 Introduction to the MAC formal description
C.1.1 Fundamental assumptions
C.1.2 Notation conventions
C.1.3 Modeling techniques
C.2 Data type and operator definitions for the MAC state machines
C.3 State machines for MAC stations
C.4 State machines for MAC access point
Annex D ASN.1 encoding of the MAC and PHY MIB
Annex E Bibliography
E.1 General
E.2 Specification and description language (SDL) documentation
