IEEE 802.11aa-2012
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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
Published By | Publication Date | Number of Pages |
IEEE | 2012 | 162 |
Amendment Standard – Superseded.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 |