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IEEE 802.11aa-2012

$87.75

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: MAC Enhancements for Robust Audio Video Streaming

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IEEE 2012 162
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Amendment Standard – Superseded. Amendment to IEEE Std 802.11(TM)-2012. This amendment specifies enhancements to the IEEE 802.11 medium access control (MAC) for robust audio video (AV) streaming, while maintaining coexistence with other types of traffic.

PDF Catalog

PDF Pages PDF Title
1 IEEE Std 802.11aa-2012 Front Cover
3 Title page
6 Notice to users
Laws and regulations
Copyrights
Updating of IEEE documents
Errata
Patents
7 Participants
11 Introduction
12 Contents
15 Tables
16 Figures
17 Important notice
18 1. Overview
1.3 Supplementary information on purpose
2. Normative references
3. Definitions, acronyms, and abbreviations
3.1 Definitions
3.2 Definitions specific to IEEE 802.11
19 3.3 Abbreviations and acronyms
20 4. General description
4.3 Components of the IEEE 802.11 architecture
4.3.15 Mesh BSS: IEEE 802.11 wireless mesh network
4.3.15.3 Mesh STA
4.3.16 Robust audio video (AV) streaming
4.3.16.1 Groupcast with retries (GCR)
21 4.3.16.2 Stream classification service (SCS)
4.3.16.3 Overlapping BSS (OBSS) management
4.3.16.4 Interworking with IEEE 802.1Q Stream Reservation Protocol (SRP)
4.3.16.5 Intra-access category prioritization
22 5. MAC service definition
5.1 Overview of MAC services
5.1.1 Data service
5.1.1.2 Determination of UP
5.1.1.5 Interpretation of service class parameter in MAC service primitives in a STA
23 6. Layer management
6.3 MLME SAP interface
6.3.3 Scan
6.3.3.3 MLME-SCAN.confirm
6.3.26 TS management interface
6.3.26.1 General
24 6.3.26.2 MLME-ADDTS.request
6.3.26.3 MLME-ADDTS.confirm
25 6.3.26.4 MLME-ADDTS.indication
6.3.26.5 MLME-ADDTS.response
26 6.3.26.8 MLME-ADDTSRESERVE.request
27 6.3.26.9 MLME-ADDTSRESERVE.confirm
6.3.26.10 MLME-ADDTSRESERVE.indication
28 6.3.26.11 MLME-ADDTSRESERVE.response
29 6.3.29 Block Ack
6.3.29.2 MLME-ADDBA.request
30 6.3.29.3 MLME-ADDBA.confirm
6.3.29.4 MLME-ADDBA.indication
31 6.3.29.5 MLME-ADDBA.response
32 6.3.67 DMS or GCR request and response procedure
6.3.67.1 General
6.3.67.2 MLME-DMSGATS.request
33 6.3.67.3 MLME-DMSGATS.confirm
34 6.3.67.4 MLME-DMSGATS.indication
6.3.67.5 MLME-DMSGATS.response
35 6.3.67.6 MLME-DMSGATS-TERM.request
36 6.3.67.7 MLME-DMSGATS-TERM.indication
37 6.3.72 QoS Map Set element management
6.3.72.2 MLME-QoSMap.request
6.3.72.3 MLME-QoSMap.indication
38 6.3.84 SCS request and response procedure
6.3.84.1 General
6.3.84.2 MLME-SCS.request
39 6.3.84.3 MLME-SCS.confirm
40 6.3.84.4 MLME-SCS.indication
41 6.3.84.5 MLME-SCS.response
6.3.84.6 MLME-SCS-TERM.request
42 6.3.84.7 MLME-SCS-TERM.indication
43 6.3.85 QLoad report management
6.3.85.1 General
6.3.85.2 MLME-QLOAD.request
44 6.3.85.3 MLME-QLOAD.confirm
45 6.3.85.4 MLME-QLOAD.indication
46 6.3.85.5 MLME-QLOAD.response
47 6.3.86 HCCA TXOP advertisement management
6.3.86.1 General
6.3.86.2 MLME-TXOPADVERTISEMENT.request
48 6.3.86.3 MLME-TXOPADVERTISEMENT.confirm
49 6.3.86.4 MLME-TXOPADVERTISEMENT.indication
50 6.3.86.5 MLME-TXOPADVERTISEMENT.response
51 6.3.87 Group membership management
6.3.87.1 General
52 6.3.87.2 MLME-GROUP-MEMBERSHIP.request
6.3.87.3 MLME-GROUP-MEMBERSHIP.confirm
53 6.3.87.4 MLME-GROUP-MEMBERSHIP.indication
54 6.3.87.5 MLME-GROUP-MEMBERSHIP.response
55 6.3.88 AP PeerKey management
6.3.88.1 General
6.3.88.2 MLME-APPEERKEY.request
56 6.3.88.3 MLME-APPEERKEY.indication
57 8. Frame formats
8.2 MAC frame formats
8.2.4 Frame fields
8.2.4.1 Frame Control field
8.2.4.4 Sequence Control field
8.2.4.5 QoS Control field
8.2.4.6 HT Control field
58 8.3 Format of individual frame types
8.3.1 Control frames
8.3.1.8 BlockAckReq frame format
60 8.3.1.9 Block Ack frame format
61 8.3.2 Data frames
8.3.2.1 Data frame format
62 8.3.3 Management frames
8.3.3.2 Beacon frame format
8.3.3.10 Probe Response frame format
8.4 Management frame body components
8.4.1 Fields that are not information elements
8.4.1.9 Status Code field
63 8.4.1.11 Action field
8.4.1.43 TXOP Reservation field
64 8.4.2 Information elements
8.4.2.1 General
8.4.2.27 RSNE
65 8.4.2.29 Extended Capabilities element
8.4.2.32 TSPEC element
66 8.4.2.36 Schedule element
67 8.4.2.90 DMS Request element
69 8.4.2.91 DMS Response element
71 8.4.2.123 Intra-Access Category Priority element
72 8.4.2.124 SCS Descriptor element
74 8.4.2.125 QLoad Report element
76 8.4.2.126 HCCA TXOP Update Count element
8.4.2.127 Higher Layer Stream ID element
77 8.4.2.128 GCR Group Address element
78 8.5 Action frame format details
8.5.3 QoS Action frame details
8.5.3.1 General
8.5.3.2 ADDTS Request frame format
79 8.5.3.3 ADDTS Response frame format
8.5.3.6 QoS Map Configure frame format
80 8.5.3.7 ADDTS Reserve Request frame format
8.5.3.8 ADDTS Reserve Response frame format
81 8.5.5 Block Ack Action frame details
8.5.5.1 General
8.5.5.2 ADDBA Request frame format
8.5.5.3 ADDBA Response frame format
82 8.5.5.4 DELBA frame format
8.5.8 Public Action details
8.5.8.1 Public Action frames
8.5.8.20 QLoad Request frame format
83 8.5.8.21 QLoad Report frame format
84 8.5.8.22 HCCA TXOP Advertisement frame
8.5.8.23 HCCA TXOP Response frame
85 8.5.8.24 Public Key frame
86 8.5.11 Protected Dual of Public Action frames
8.5.14 WNM Action details
8.5.14.26 DMS Response frame format
87 8.5.16 Self-protected Action frame details
8.5.16.2 Mesh Peering Open frame format
8.5.16.3 Mesh Peering Confirm frame format
88 8.5.16.4 Mesh Peering Close frame format
8.5.19 Robust AV Streaming Action frame details
8.5.19.1 General
89 8.5.19.2 SCS Request frame format
8.5.19.3 SCS Response frame format
90 8.5.19.4 Group Membership Request frame format
8.5.19.5 Group Membership Response frame format
91 9. MAC sublayer functional description
9.2 MAC architecture
9.2.4 Hybrid coordination function (HCF)
9.2.4.2 HCF contention-based channel access (EDCA)
92 9.3 DCF
9.3.2 Procedures common to the DCF and EDCAF
9.3.2.3 IFS
9.3.2.8 ACK procedure
9.3.2.10 Duplicate detection and recovery
93 9.3.6 Group addressed MPDU transfer procedure
94 9.4 PCF
9.4.3 PCF access procedure
9.4.3.2 Fundamental access
9.4.4 PCF transfer procedure
9.4.4.2 PCF transfers when the PC STA is transmitter or recipient
95 9.7 Multirate support
9.7.5 Rate selection for data and management frames
9.7.5.3 Rate selection for other group addressed data and management frames
9.9 HT Control field operation
9.11 A-MSDU operation
9.19 HCF
9.19.2 HCF contention-based channel access (EDCA)
9.19.2.1 Reference implementation
96 9.19.2.5 EDCA backoff procedure
97 9.19.2.6 Retransmit procedures
99 9.19.3 HCCA
9.19.3.1 General
100 9.21 Block Acknowledgment (Block Ack)
9.21.2 Setup and modification of the Block Ack parameters
9.21.3 Data and acknowledgment transfer using immediate Block Ack policy and delayed Block Ack policy
101 9.21.5 Teardown of the Block Ack mechanism
9.21.6 Selection of BlockAck and BlockAckReq variants
9.21.10 GCR Block Ack
9.21.10.1 Introduction
9.21.10.2 Scoreboard context control during GCR Block Ack
102 9.21.10.3 GCR Block Ack BlockAckReq and BlockAck frame exchanges
104 9.26 PSMP Operation
9.26.1 Frame transmission mechanism during PSMP
9.26.1.1 PSMP frame transmission (PSMP-DTT and PSMP-UTT)
10. MLME
10.2 Power management
10.2.1 Power management in an infrastructure network
10.2.1.1 General
105 10.2.1.2 STA Power Management modes
10.2.1.3 AP TIM transmissions
10.2.1.4 TIM types
106 10.2.1.5 Power management with APSD
107 10.2.1.6 AP operation during the CP
108 10.2.1.7 AP operation during the CFP
109 10.4 TS operation
10.4.1 Introduction
10.4.4 TS setup
10.4.4.1 General
10.4.4.2 Non-AP-STA-initiated TS setup
10.4.4.3 AP-initiated TS setup
111 10.4.4.4 TS setup procedures for both AP and non-AP STA initiation
10.4.8 Data transfer
10.5 Block Ack operation
10.5.2 Setup and modification of the Block Ack parameters
10.5.2.2 Procedure at the originator
112 10.5.2.4 Procedure common to both originator and recipient
10.5.4 Error recovery upon a peer failure
10.18 RSNA A-MSDU procedures
10.23 Wireless network management procedures
10.23.15 Group addressed transmission service DMS procedures
10.23.15.1 General
113 10.23.15.2 DMS procedures
10.23.15.3 GCR procedures
123 10.25 Quality-of-service management frame (QMF)
10.25.2 QMF policy advertisement and configuration procedures
10.25.2.2 QMF policy change in an infrastructure BSS or in an MBSS
124 10.26 Robust AV streaming
10.26.1 Robust AV streaming dependencies
10.26.2 SCS procedures
125 10.27 Procedures to manage OBSS
10.27.1 General
126 10.27.2 QLoad Report element
10.27.2.1 Introduction
10.27.2.2 Calculating field values
128 10.27.2.3 Requesting QLoad Reports using radio measurement requests
10.27.3 HCCA TXOP negotiation
132 10.27.4 HCCA AP timing synchronization for HCCA TXOP advertisement
10.27.4.1 General
10.27.4.2 Timing offset
133 10.27.4.3 Clock drift adjustment
11. Security
11.8 Per-frame pseudo-code
11.8.2 RSNA frame pseudo-code
11.8.2.8 Per-MSDU/Per-A-MSDU Rx pseudo-code
134 11.10 AP PeerKey support
11.10.1 AP PeerKey overview
135 11.10.2 AP PeerKey protocol
137 Annex B (normative) Protocol Implementation Conformance Statement (PICS) proforma
B.2 Abbreviations and special symbols
B.2.2 General abbreviations for Item and Support columns
B.4 PICS proforma—IEEE Std 802.11-2012
B.4.3 IUT configuration
B.4.25 RobustAVT extensions
139 Annex C (normative) ASN.1 encoding of the MAC and PHY MIB
151 Annex X (informative) Overlapping BSS (OBSS) management
X.1 Introduction
X.2 QLoad Report element
X.2.1 General
152 X.2.2 Calculating medium time
X.2.3 Calculation of potential traffic self
154 X.2.4 Calculation of allocated traffic self
155 X.2.5 Calculation of allocated traffic shared
X.2.6 Calculation of EDCA Access Factor
156 X.2.7 EDCA Overhead Factor
157 X.2.8 Calculation of HCCA Access Factor
X.3 Channel selection using QLoad report
X.3.1 General
X.3.2 AP with admission control mandatory
158 X.3.3 AP with an HC
X.3.4 Channel selection procedures
159 X.4 Sharing in an OBSS situation
X.4.1 General
160 X.4.2 Sharing schemes
X.4.2.1 General
X.4.2.2 Proportional sharing scheme
161 X.4.2.3 On-demand sharing scheme
162 X.5 Mitigating consequences of OBSS sharing in presence of noncollaborating devices
IEEE 802.11aa-2012
$87.75