IEEE P802.11n™/D1.0
Draft Amendment to STANDARD [FOR]
Information Technology-Telecommunications and information exchange between systems-Local and Metropolitan networks-Specific requirements-Part. Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: Enhancements for Higher Throughput
CONTENT1 S
2 1. Overview ....................................................................................................................................................2
3 2. Normative references..................................................................................................................................2
4 3. Definitions ..................................................................................................................................................2
5 4. Abbreviations and acronyms .......................................................................................................................3
6 5. General description.....................................................................................................................................6
7 5.3 Logical Service Interfaces ....................................................................................................................8
8 5.4 Overview of the services ....................................................................................................................10
9 5.6 Relationship between services ............................................................................................................10
10 6. MAC service definition .............................................................................................................................11
11 6.1 Overview of MAC services ................................................................................................................11
12 6.2 Detailed service specification .............................................................................................................13
13 7. Frame formats...........................................................................................................................................13
14 7.1 MAC frame formats...........................................................................................................................14
15 7.2 Format of individual frame types........................................................................................................22
16 7.3 Management frame body components ................................................................................................35
17 7.4 Action frame format details ................................................................................................................55
18 7.4A Aggregated MPDU frames ..............................................................................................................78
19 7.5 Frame usage.......................................................................................................................................81
20 8. Security.....................................................................................................................................................81
21 8.1 Framework.........................................................................................................................................81
22 8.2 Pre-RSNA security methods...............................................................................................................81
23 8.3 RSNA data confidentiality protocols..................................................................................................82
24 8.4 RSNA security association management ............................................................................................82
25 8.5 Keys and key distribution ...................................................................................................................82
26 8.6 Mapping EAPOL keys to IEEE 802.11 keys......................................................................................82
27 8.7 Per-frame pseudo-code .......................................................................................................................82
28 8.8 Security for HT STA ..........................................................................................................................82
29 9. MAC sublayer functional description........................................................................................................82
30 9.1 MAC architecture ...............................................................................................................................82
31 9.2 DCF ...................................................................................................................................................82
32 9.3 PCF....................................................................................................................................................85
33 9.4 Fragmentation....................................................................................................................................85
34 9.5 Defragmentation ................................................................................................................................86
35 9.6 Multirate support ...............................................................................................................................87
9.7 MSDU transmission restrictions.........................................................................................................1 89
2 9.8 Operation across regulatory domains..................................................................................................89
3 9.9 HCF ...................................................................................................................................................89
4 9.10 Block Acknowledgment (Block Ack)...............................................................................................91
5 9.11 No Acknowledgment (No Ack)........................................................................................................97
6 9.12 Frame exchange sequences...............................................................................................................97
7 9.13 Protection mechanism for non-ERP receivers ................................................................................104
8 9.14 Protection mechanisms for different HT PHY options...................................................................105
9 9.15 L-SIG TXOP Protection .................................................................................................................105
10 9.16 Protection mechanisms for Aggregation Exchange Sequences ......................................................107
11 9.17 Reverse direction ............................................................................................................................109
12 9.18 PSMP.............................................................................................................................................111
13 9.19 Link Adaptation.............................................................................................................................117
14 9.20 Transmit Beamforming...................................................................................................................119
15 9.21 Antenna Selection..........................................................................................................................125
16 9.22 Zero Length Frame as sounding frame ...........................................................................................128
17 9.23 40/20 Functional description ..........................................................................................................129
18 10. Layer management ...............................................................................................................................131
19 10.1 Overview of management model....................................................................................................131
20 10.2 Generic management primitives .....................................................................................................131
21 10.3 MLME SAP interface .....................................................................................................................131
22 10.4 PLME SAP interface ......................................................................................................................140
23 11. MLME..................................................................................................................................................142
24 11.1 Synchronization ..............................................................................................................................142
25 11.2 Power management........................................................................................................................143
26 11.3 Authentication and deauthentication...............................................................................................146
27 11.4 TS operation ..................................................................................................................................146
28 11.5 Block Ack operation .......................................................................................................................149
29 11.6 Higher layer timer synchronization ................................................................................................149
30 11.7 DLS operation................................................................................................................................149
31 11.8 TPC................................................................................................................................................149
32 11.9 DFS................................................................................................................................................149
33 11.10 Radio Measurement Procedures ...................................................................................................150
34 11.11 Usage of the Neighbor Report ......................................................................................................150
35 11.12 Link Measurement ........................................................................................................................150
36 11.13 Measurement pilot frame generation and usage ...........................................................................151
37 11.14 A-MPDU operation ......................................................................................................................151
38 11.15 40/20 MHz Operation ...................................................................................................................151
39 11.16 Phased Coexistence Operation......................................................................................................156
40 12. PHY service specification .....................................................................................................................158
41 13. PHY management.................................................................................................................................158
42 14. Frequency-Hopping spread spectrum (FHSS) PHY specification for the 2.4 GHz industrial, scientific,
43 and medical (ISM) band ..............................................................................................................................158
44 15. DSSS PHY specification for the 2.4 GHz band designated for ISM applications.................................159
16. Infrared (IR) PHY specification ............................................................................................................1 159
2 17. Orthogonal frequency division multiplexing (OFDM) PHY specification for the 5 GHz band ............159
3 18. High Rate direct sequence spread spectrum (HR/DSSS) PHY specification ........................................159
4 19. ERP specification .................................................................................................................................159
5 20. High Throughput PHY specification .....................................................................................................159
6 20.1 Introduction ...................................................................................................................................159
7 20.2 High Throughput PHY specific service parameter list ...................................................................161
8 20.3 High Throughput PLCP sublayer ...................................................................................................168
9 20.4 High Throughput PLME.................................................................................................................237
10 20.5 High Throughput PMD sublayer ....................................................................................................242
11 20.6 Optional Features...........................................................................................................................253
12 20.7 Rate Dependent Parameters for High Throughput Modulation and Coding Schemes (MCS)........253
13 Annex A PICS............................................................................................................................................265
14 A.4 PICS proforma–IEEE Std 802.11, 2006 Edition9 ............................................................................265
15 Annex B......................................................................................................................................................274
16 Annex C (normative) Formal description of MAC operation.....................................................................275
17 C.3 State machines for MAC stations.....................................................................................................275
18 Annex D (normative) ASN.1 encoding of the MAC and PHY MIB...........................................................276
19 Annex E......................................................................................................................................................312
20 Annex F ......................................................................................................................................................313
21 Annex G .....................................................................................................................................................314
22 Annex H .....................................................................................................................................................315
23 Annex I .......................................................................................................................................................316
24 Annex J.......................................................................................................................................................317 |
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