"2020 IEEE 802.11标准.pdf: 无线局域网MAC和PHY规范"

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"802.11-2020.pdf is the documentation of the 2020 802.11 protocol, which falls under the IEEE Standard for Information Technology—Telecommunications and Information Exchange between Systems Local and Metropolitan Area Networks—Specific Requirements Part 11. This standard specifies the requirements for Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications. Developed by the LAN/MAN Standards Committee of the IEEE Computer Society, this is a revision of the previous standard IEEE Std 802.11-2016. This standard is authorized for licensed use, limited to the University of Science." In summary, the 802.11-2020.pdf is a comprehensive document that outlines the specifications and requirements for the 2020 802.11 protocol, a wireless LAN standard. It is developed and maintained by the IEEE, specifically the LAN/MAN Standards Committee of the IEEE Computer Society. This standard is essential for organizations, researchers, and developers working in the field of wireless networking and telecommunications.

4.3.24.4 Mirrored stream classification service (MSCS).................................. 250

4.3.24.5 Overlapping BSS (OBSS) management ............................................. 250

4.3.24.6 Interworking with IEEE 802.1Q Stream Reservation Protocol (SRP) 250

4.3.24.7 Intra-access category prioritization..................................................... 250

4.3.25 Operation under geolocation database (GDB) control .......................................... 251

4.3.26 CDMG STA........................................................................................................... 252

4.3.27 CMMG STA .......................................................................................................... 253

4.3.28 General link (GLK)................................................................................................ 254

4.3.28.1 General ................................................................................................ 254

4.3.28.2 Selective reception of group addressed frames................................... 254

4.3.28.3 GLK Service Sets................................................................................ 255

4.3.29 Ethertype protocol discrimination (EPD) .............................................................. 259

4.4 Logical service interfaces ...................................................................................................... 260

4.4.1 General................................................................................................................... 260

4.4.2 SS ........................................................................................................................... 260

4.4.3 PBSS control point service (PCPS) ....................................................................... 261

4.4.4 DSS ........................................................................................................................ 261

4.5 Overview of the services........................................................................................................ 262

4.5.1 General................................................................................................................... 262

4.5.2 Distribution of MSDUs within a DS...................................................................... 263

4.5.2.1 Distribution ......................................................................................... 263

4.5.2.2 Integration ........................................................................................... 264

4.5.2.3 QoS traffic scheduling ........................................................................ 264

4.5.3 Connectivity-related services................................................................................. 264

4.5.3.1 General ................................................................................................ 264

4.5.3.2 Mobility types ..................................................................................... 265

4.5.3.3 Association.......................................................................................... 265

4.5.3.4 Reassociation ...................................................................................... 266

4.5.3.5 Disassociation ..................................................................................... 266

4.5.4 Access control and data confidentiality services ................................................... 267

4.5.4.1 General ................................................................................................ 267

4.5.4.2 Authentication..................................................................................... 267

4.5.4.3 Deauthentication ................................................................................. 268

4.5.4.4 Data confidentiality............................................................................. 269

4.5.4.5 Key management................................................................................. 270

4.5.4.6 Data origin authenticity....................................................................... 270

4.5.4.7 Replay detection.................................................................................. 270

4.5.4.8 Fast BSS transition.............................................................................. 270

4.5.4.9 Management frame protection ............................................................ 270

4.5.4.10 MAC privacy enhancements............................................................... 271

4.5.5 Spectrum management services............................................................................. 271

4.5.5.1 General ................................................................................................ 271

4.5.5.2 TPC ..................................................................................................... 271

4.5.5.3 DFS ..................................................................................................... 271

4.5.6 Traffic differentiation and QoS support................................................................. 272

4.5.6.1 General ................................................................................................ 272

4.5.6.2 Quality-of-service management frame support................................... 272

4.5.7 Support for higher layer timer synchronization ..................................................... 272

4.5.8 Radio measurement service ................................................................................... 273

4.5.9 Interworking with external networks ..................................................................... 273

4.5.9.1 General ................................................................................................ 273

4.5.9.2 Preassociation discovery (PAD) ......................................................... 274

4.5.10 Generic advertisement service (GAS) ................................................................... 275

4.6 Multiple logical address spaces ............................................................................................. 276

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4.7 Differences among ESS, PBSS, and IBSS LANs.................................................................. 276

4.8 Differences between ESS and MBSS LANs ......................................................................... 278

4.9 Reference model .................................................................................................................... 279

4.9.1 General................................................................................................................... 279

4.9.2 Interworking reference model................................................................................ 279

4.9.3 Reference model for supporting multiple MAC sublayers .................................... 281

4.9.4 Reference model for multi-band operation ............................................................ 282

4.10 IEEE Std 802.11 and IEEE Std 802.1X-2010 ....................................................................... 284

4.10.1 General................................................................................................................... 284

4.10.2 IEEE 802.11 usage of IEEE Std 802.1X-2010 ...................................................... 284

4.10.3 Infrastructure functional model overview.............................................................. 284

4.10.3.1 General ................................................................................................ 284

4.10.3.2 AKM operations with AS ................................................................... 284

4.10.3.3 AKM operations with a password or PSK.......................................... 287

4.10.3.4 Alternate operations with PSK............................................................ 288

4.10.3.5 Disassociation ..................................................................................... 288

4.10.3.6 AKM operations using FILS authentication ....................................... 288

4.10.4 IBSS functional model description ........................................................................ 289

4.10.4.1 General ................................................................................................ 289

4.10.4.2 Key usage............................................................................................ 289

4.10.4.3 Sample IBSS 4-way handshakes......................................................... 290

4.10.4.4 IBSS IEEE 802.1X example ............................................................... 291

4.10.5 PBSS functional model description ....................................................................... 292

4.10.6 Authenticator-to-AS protocol ................................................................................ 293

4.10.7 PMKSA caching .................................................................................................... 293

4.10.8 Protection of group addressed robust Management frames................................... 294

5. MAC service definition ................................................................................................................... 295

5.1 Overview of MAC services ................................................................................................... 295

5.1.1 Data service............................................................................................................ 295

5.1.1.1 General ................................................................................................ 295

5.1.1.2 Determination of UP ........................................................................... 295

5.1.1.3 Interpretation of priority parameter in MAC service primitives......... 295

5.1.1.4 Interpretation of service class parameter in MAC service

primitives in a STA ............................................................................. 296

5.1.2 Security services .................................................................................................... 297

5.1.3 MSDU ordering ..................................................................................................... 297

5.1.4 MSDU format ........................................................................................................ 298

5.1.5 MAC data service architecture .............................................................................. 299

5.1.5.1 General ................................................................................................ 299

5.1.5.2 Non-GLK non-AP STA role ............................................................... 302

5.1.5.3 Non-GLK AP role............................................................................... 302

5.1.5.4 Non-GLK mesh STA role ................................................................... 303

5.1.5.5 Mesh gate role..................................................................................... 303

5.1.5.6 S1G relay............................................................................................. 303

5.1.5.7 GLK STA role..................................................................................... 305

5.1.5.8 GLK AP role ....................................................................................... 305

5.1.5.9 GLK mesh STA role ........................................................................... 305

5.2 MAC data service specification............................................................................................. 307

5.2.1 General................................................................................................................... 307

5.2.2 GLK MAC data service specification.................................................................... 307

5.2.3 MA-UNITDATA.request ...................................................................................... 307

5.2.3.1 Function .............................................................................................. 307

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5.2.3.2 Semantics of the service primitive ...................................................... 307

5.2.3.3 When generated................................................................................... 308

5.2.3.4 Effect of receipt................................................................................... 308

5.2.4 MA-UNITDATA.indication .................................................................................. 310

5.2.4.1 Function .............................................................................................. 310

5.2.4.2 Semantics of the service primitive ...................................................... 310

5.2.4.3 When generated................................................................................... 311

5.2.4.4 Effect of receipt................................................................................... 311

5.2.5 MA-UNITDATA-STATUS.indication.................................................................. 313

5.2.5.1 Function .............................................................................................. 313

5.2.5.2 Semantics of the service primitive ...................................................... 313

5.2.5.3 When generated................................................................................... 314

5.2.5.4 Effect of receipt................................................................................... 314

6. Layer management........................................................................................................................... 315

6.1 Overview of management model........................................................................................... 315

6.2 Generic management primitives ............................................................................................ 316

6.3 MLME SAP interface ............................................................................................................ 316

6.3.1 Introduction............................................................................................................ 316

6.3.2 Power management................................................................................................ 317

6.3.2.1 Introduction......................................................................................... 317

6.3.2.2 MLME-POWERMGT.request............................................................ 317

6.3.2.3 MLME-POWERMGT.confirm........................................................... 318

6.3.3 Scan........................................................................................................................ 318

6.3.3.1 Introduction......................................................................................... 318

6.3.3.2 MLME-SCAN.request ........................................................................ 318

6.3.3.3 MLME-SCAN.confirm ....................................................................... 322

6.3.3.4 MLME-SCAN-STOP.request ............................................................. 337

6.3.4 Synchronization ..................................................................................................... 337

6.3.4.1 Introduction......................................................................................... 337

6.3.4.2 MLME-JOIN.request .......................................................................... 337

6.3.4.3 MLME-JOIN.confirm ......................................................................... 340

6.3.5 Authenticate ........................................................................................................... 341

6.3.5.1 Introduction......................................................................................... 341

6.3.5.2 MLME-AUTHENTICATE.request .................................................... 341

6.3.5.3 MLME-AUTHENTICATE.confirm ................................................... 342

6.3.5.4 MLME-AUTHENTICATE.indication................................................ 344

6.3.5.5 MLME-AUTHENTICATE.response.................................................. 345

6.3.6 Deauthenticate ....................................................................................................... 347

6.3.6.1 Introduction......................................................................................... 347

6.3.6.2 MLME-DEAUTHENTICATE.request............................................... 347

6.3.6.3 MLME-DEAUTHENTICATE.confirm.............................................. 347

6.3.6.4 MLME-DEAUTHENTICATE.indication .......................................... 348

6.3.7 Associate................................................................................................................ 348

6.3.7.1 Introduction......................................................................................... 348

6.3.7.2 MLME-ASSOCIATE.request............................................................. 349

6.3.7.3 MLME-ASSOCIATE.confirm............................................................ 352

6.3.7.4 MLME-ASSOCIATE.indication ........................................................ 358

6.3.7.5 MLME-ASSOCIATE.response .......................................................... 363

6.3.8 Reassociate............................................................................................................. 367

6.3.8.1 Introduction......................................................................................... 367

6.3.8.2 MLME-REASSOCIATE.request........................................................ 367

6.3.8.3 MLME-REASSOCIATE.confirm....................................................... 371

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6.3.8.4 MLME-REASSOCIATE.indication ................................................... 377

6.3.8.5 MLME-REASSOCIATE.response ..................................................... 383

6.3.9 Disassociate ........................................................................................................... 388

6.3.9.1 MLME-DISASSOCIATE.request ...................................................... 388

6.3.9.2 MLME-DISASSOCIATE.confirm ..................................................... 388

6.3.9.3 MLME-DISASSOCIATE.indication.................................................. 389

6.3.10 Reset....................................................................................................................... 389

6.3.10.1 Introduction......................................................................................... 389

6.3.10.2 MLME-RESET.request....................................................................... 389

6.3.11 Start........................................................................................................................ 390

6.3.11.1 Introduction......................................................................................... 390

6.3.11.2 MLME-START.request ...................................................................... 390

6.3.11.3 MLME-START.confirm ..................................................................... 396

6.3.12 Stop ........................................................................................................................ 397

6.3.12.1 General ................................................................................................ 397

6.3.12.2 MLME-STOP.request ......................................................................... 397

6.3.13 Protocol layer model for spectrum management and radio measurement............. 398

6.3.14 Measurement request ............................................................................................. 401

6.3.14.1 Introduction......................................................................................... 401

6.3.14.2 MLME-MREQUEST.request ............................................................. 401

6.3.14.3 MLME-MREQUEST.indication......................................................... 402

6.3.15 Channel measurement............................................................................................ 403

6.3.15.1 Introduction......................................................................................... 403

6.3.15.2 MLME-MEASURE.request................................................................ 403

6.3.15.3 MLME-MEASURE.confirm............................................................... 403

6.3.16 Measurement report ............................................................................................... 404

6.3.16.1 Introduction......................................................................................... 404

6.3.16.2 MLME-MREPORT.request................................................................ 404

6.3.16.3 MLME-MREPORT.indication ........................................................... 405

6.3.17 Channel switch....................................................................................................... 406

6.3.17.1 MLME-CHANNELSWITCH.request ................................................ 406

6.3.17.2 MLME-CHANNELSWITCH.confirm ............................................... 407

6.3.17.3 MLME-CHANNELSWITCH.indication............................................ 408

6.3.17.4 MLME-CHANNELSWITCH.response.............................................. 409

6.3.18 TPC request............................................................................................................ 410

6.3.18.1 Introduction......................................................................................... 410

6.3.18.2 MLME-TPCADAPT.request .............................................................. 410

6.3.18.3 MLME-TPCADAPT.confirm ............................................................. 411

6.3.19 SetKeys .................................................................................................................. 412

6.3.19.1 MLME-SETKEYS.request ................................................................. 412

6.3.20 DeleteKeys............................................................................................................. 413

6.3.20.1 MLME-DELETEKEYS.request ......................................................... 413

6.3.21 MIC (michael) failure event .................................................................................. 414

6.3.21.1 MLME-MICHAELMICFAILURE.indication.................................... 414

6.3.22 EAPOL................................................................................................................... 415

6.3.22.1 MLME-EAPOL.request...................................................................... 415

6.3.22.2 MLME-EAPOL.confirm..................................................................... 416

6.3.23 SetProtection.......................................................................................................... 416

6.3.23.1 MLME-SETPROTECTION.request................................................... 416

6.3.24 MLME-PROTECTEDFRAMEDROPPED ........................................................... 417

6.3.24.1 MLME-PROTECTEDFRAMEDROPPED.indication ....................... 417

6.3.25 TS management interface ...................................................................................... 418

6.3.25.1 General ................................................................................................ 418

6.3.25.2 MLME-ADDTS.request ..................................................................... 419

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6.3.25.3 MLME-ADDTS.confirm .................................................................... 421

6.3.25.4 MLME-ADDTS.indication ................................................................. 424

6.3.25.5 MLME-ADDTS.response ................................................................... 426

6.3.25.6 MLME-DELTS.request ...................................................................... 429

6.3.25.7 MLME-DELTS.indication.................................................................. 430

6.3.25.8 MLME-ADDTSRESERVE.request.................................................... 431

6.3.25.9 MLME-ADDTSRESERVE.confirm................................................... 432

6.3.25.10 MLME-ADDTSRESERVE.indication ............................................... 433

6.3.25.11 MLME-ADDTSRESERVE.response ................................................. 434

6.3.26 Higher layer synchronization support.................................................................... 434

6.3.26.1 Introduction......................................................................................... 434

6.3.26.2 MLME-HL-SYNC.request ................................................................. 435

6.3.26.3 MLME-HL-SYNC.indication ............................................................. 435

6.3.27 Block Ack .............................................................................................................. 436

6.3.27.1 General ................................................................................................ 436

6.3.27.2 MLME-ADDBA.request..................................................................... 436

6.3.27.3 MLME-ADDBA.confirm ................................................................... 437

6.3.27.4 MLME-ADDBA.indication ................................................................ 439

6.3.27.5 MLME-ADDBA.response .................................................................. 440

6.3.27.6 MLME-DELBA.request ..................................................................... 441

6.3.27.7 MLME-DELBA.indication ................................................................. 442

6.3.28 Schedule element management.............................................................................. 443

6.3.28.1 Introduction......................................................................................... 443

6.3.28.2 MLME-SCHEDULE.request.............................................................. 443

6.3.28.3 MLME-SCHEDULE.indication ......................................................... 444

6.3.29 Vendor-specific action........................................................................................... 445

6.3.29.1 Introduction......................................................................................... 445

6.3.29.2 MLME-VSPECIFIC.request............................................................... 445

6.3.29.3 MLME-VSPECIFIC.indication .......................................................... 446

6.3.30 Neighbor report request ......................................................................................... 447

6.3.30.1 General ................................................................................................ 447

6.3.30.2 MLME-NEIGHBORREPREQ.request............................................... 447

6.3.30.3 MLME-NEIGHBORREPREQ.indication .......................................... 448

6.3.31 Neighbor report response....................................................................................... 449

6.3.31.1 General ................................................................................................ 449

6.3.31.2 MLME-NEIGHBORREPRESP.request ............................................. 449

6.3.31.3 MLME-NEIGHBORREPRESP.indication......................................... 450

6.3.32 Link Measure Request ........................................................................................... 451

6.3.32.1 General ................................................................................................ 451

6.3.32.2 MLME-LINKMEASURE.request ...................................................... 451

6.3.32.3 MLME-LINKMEASURE.confirm ..................................................... 452

6.3.33 MLME SAP interface for resource request ........................................................... 453

6.3.33.1 MLME-RESOURCE-REQUEST.request........................................... 453

6.3.33.2 MLME-RESOURCE-REQUEST.indication ...................................... 454

6.3.33.3 MLME-RESOURCE-REQUEST.response ........................................ 455

6.3.33.4 MLME-RESOURCE-REQUEST.confirm ......................................... 455

6.3.33.5 MLME-RESOURCE-REQUEST-LOCAL.request............................ 456

6.3.33.6 MLME-RESOURCE-REQUEST-LOCAL.confirm........................... 457

6.3.34 MLME SAP interface for remote requests ............................................................ 457

6.3.34.1 MLME-REMOTE-REQUEST.request ............................................... 457

6.3.34.2 MLME-REMOTE-REQUEST.indication........................................... 458

6.3.35 Extended channel switch announcement ............................................................... 458

6.3.35.1 General ................................................................................................ 458

6.3.35.2 MLME-EXTCHANNELSWITCH.request......................................... 459

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