"802.11ac-D2.0协议：WiFi学习下载与射频相关参考"

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IEEE P802.11ac/D2.0, January 2012

This is an unapproved IEEE Standards Draft, subject to change.

22.3.917Transmission of NON_HT format PPDUs with more than one antennaTransmit and re-

ceive port impedance155

247

22.3.10

18Data fieldPMD transmit specification ............................................................... 155247

22.3.10

18.1GeneralTransmit spectrum mask ........................................................ 155247

22.3.10

18.2SERVICE fieldSpectral flatness ......................................................... 156250

22.3.10

18.3CRC calculation for VHT-SIG-BTransmit center frequency tolerance .........

157

252

22.3.10

18.4ScramblerSymbol clock frequency tolerance ..................................... 157252

22.3.10

18.5CodingModulation accuracy............................................................... 157252

22.3.10.6

19Stream parserVHT PMD receiver specification ............................................. 161254

22.3.10

19.71Segment parserReceiver minimum input sensitivity ........................ 162254

22.3.10

19.82BCC interleaverAdjacent channel rejection ..................................... 163255

22.3.10

19.93Constellation mappingNonadjacent channel rejection ..................... 166256

22.3.10

19.104Pilot subcarriersReceiver maximum input level............................. 171257

22.3.10

19.115OFDM modulationCCA sensitivity ................................................ 172257

22.3.10

19.126Non-HT duplicate transmissionRSSI.............................................. 173259

22.3.11

20SU-MIMO and MU-MIMO BeamformingPLCP transmit procedure ............... 174259

22.3.11.1

21GeneralPLCP receive procedure..................................................................... 174263

22.3.11.2

4Beamforming Feedback Matrix VVHT PLME ........................................................ 175268

22.3

4.111.3Group IDPLME_SAP sublayer management primitives................................ 176268

22.3

4.122VHT preamble format for sounding PPDUsPHY MIB ..................................... 176268

22.4.3.13

Regulatory requirementsTXTIME and PSDU_LENGTH calculation ............... 177271

22.3

4.144ChannelizationPHY characteristics ................................................................... 177273

22.5 Parameters for VHT MCSs...................................................................................................... 274

22.3.15

6Transmit RF delayVHT PMD sublayer ....................................................................... 178290

22.3

6.161Slot timeScope and field of application ............................................................. 178290

22.3

6.172Transmit and receive port impedanceOverview of service ............................... 178290

22.6.3.18

PMD transmit specificationOverview of interactions ........................................ 178291

22.3

6.18.14Transmit spectrum maskBasic service and options ........................................ 178291

22.3

6.184.21Spectral flatnessStatus of service primitives .................................... 181291

22.6.4.2 PMD_SAP peer-to-peer service primitives ................................................. 291

22.3

6.184.3Transmit center frequency tolerancePMD_SAP sublayer-to-sublayer service

primitives 182

291

22.3

6.184.4Symbol clock frequency tolerancePMD_SAP service primitive parameters .

182

292

22.3.18

6.5Modulation accuracyPMD_SAP detailed service specification ....................... 182293

22.3

6.5.191VHT PMD receiver Introduction to PMD_SAP service specification184293

22.3

6.195.12Receiver minimum input sensitivityPMD_DATA.request............... 184293

22.3

6.195.23Adjacent channel rejectionPMD_DATA.indication......................... 185293

22.3

6.195.34Nonadjacent channel rejectionPMD_TXSTART.request................. 186294

22.3

6.195.45Receiver maximum input levelPMD_TXEND.request .................... 187294

22.3

6.519.56CCA sensitivityPMD_TXEND.confirm........................................... 187295

22.3

6.5.207PLCP transmit procedurePMD_TXPWRLVL.request....................... 189295

22.3

6.5.218PLCP receive procedurePMD_RSSI.indication ................................. 191296

22.6.5.4

9 VHT PLMEPMD_RCPI.indication ....................................................... 195296

22.4

6.5.110PLME_SAP sublayer management

primitivesPMD_TX_PARAMETERS.request195296

22.6.4

5.211PHY MIBPMD_CHAN_MAT.indication .......................................... 196297

22.4

6.5.312TXTIME and PSDU_LENGTH calculationPMD_FORMAT.indication ......

198

297

22.6.4

5.413PHY characteristicsPMD_NON_HT_CH_BANDWIDTH.indication200298

22.6.5.14 Parameters for VHT MCSs

PMD_CBW.indication ............................... 200298

Annex B ................................................................................................................................................

218300

IEEE P802.11ac/D2.0, January 2012

xvii

This is an unapproved IEEE Standards Draft, subject to change.

B.2 Abbreviations and special symbols............................................................................ 218300

B.2.2 General abbreviations for Item and Support columns..................................

218300

B.4 PICS proforma—IEEE Std 802.11-<year> ...............................................................

218300

B.4.3 IUT configuration.........................................................................................

218300

B.4.14

4 QoS base functionalityMAC protocol.......................................................... 218300

B.4.19

4.1High-throughput (HT) featuresMAC frames................................ 219301

B.4.19.1

14HT MAC featuresQoS base functionality ................................................ 219301

B.4.19.2

HT PHY High-throughput (HT) features..................................................... 221301

B.4.23

19.1Very High Throughput (VHT) FeaturesHT MAC features........ 221301

B.4.23

19.12VHT MAC HT PHY features ................................................... 221303

B.4.23.2

VHT PHY Very High Throughput (VHT) Features .................................... 223304

B.4.23.1 VHT MAC features............................................................................. 304

B.4.23.2 VHT PHY Features............................................................................. 308

Annex C ................................................................................................................................................

228316

C.3 MIB Detail .................................................................................................................

228316

Annex D ................................................................................................................................................

238332

D.2 Radio performance specifications..............................................................................

238332

D.2.5 CCA-ED threshold .......................................................................................

238332

Annex E ................................................................................................................................................

239333

E.1 Country information and operating classes ...............................................................

239333

E.2 Band-specific operating requirements .......................................................................

241335

E.2.2 3650–3700 MHz in the United States ..........................................................

241335

Annex S .................................................................................................................................................

242336

S.0

HT and VHT waveform generator tool............................................................................ 242

S.1 VHT and HT Wwaveform waveform generator tool................................................. 242336

IEEE P802.11ac/D2.0, January 2012

xix

This is an unapproved IEEE Standards Draft, subject to change.

List of Tablestables

Table 7-4—Vector descriptions................................................................................................................. 1622

Table 7-ac1

5—Channel-list parameter elements....................................................................................... 1723

Table 8-1—Valid type and subtype combinations ....................................................................................

2027

Table 8-6—Ack Policy subfield in QoS Control field of QoS data frames .................................................. 29

Table 8-ac2

13a—MFB subfield in the VHT format variant HT Control fieldfield subfields................... 2432

Table 8-6

13b—Ack Policy MFB subfield in QoS the VHT variant HT Control field of QoS data framesfield

Table 8-ac3

18a—STA Info subfields ........................................................................................................ 2736

Table 8-19

20—Beacon frame body........................................................................................................... 2939

Table 8-21

22—Association Request frame body...................................................................................... 2939

Table 8-22

23—Association Response frame body ................................................................................... 2940

Table 8-23

24—Reassociation Request frame body................................................................................... 3040

Table 8-24

25—Reassociation Response frame body ................................................................................ 3040

Table 8-25

26—Probe Request frame body ............................................................................................... 3041

Table 8-26

27—Probe Response frame body ............................................................................................. 3141

Table 8-37

38—Category values ................................................................................................................ 3142

Table 8-ac4

53b—Subfields of the VHT MIMO Control field .................................................................. 3244

Table 8-ac5

53c—Order of angles in the Compressed Beamforming Feedback Matrix subfield.............. 3446

Table 8-ac6

53d—Quantization of angles .................................................................................................. 3648

Table 8-ac7

53e—VHT Compressed Beamforming Report field .............................................................. 3648

Table 8-ac8

53f—Subcarrier Subcarriers for which a Compressed Beamforming Feedback Matrix subfield is

sent back ....................................................................................................................................................

3749

Table 8-ac9

53g—Average SNR of Space-Time Stream s i subfield......................................................... 4255

Table 8-ac10

53h—MU Exclusive Beamforming Report field.................................................................. 4356

Table 8-ac11

53i—Number of subcarriers and subcarrier mapping........................................................... 4357

Table 8-ac12

53j—Subfield values of the VHT Operating Mode field...................................................... 4760

Table 8-53k—Encoding of User Position subfield........................................................................................ 62

Table 8-53

54—Element IDs ...................................................................................................................... 4863

Table 8-55—BSS membership selector value encoding ...............................................................................63

Table 8-101

103—Capabilities field........................................................................................................... 4864

Table 8-105—Default EDCA Parameter Set element parameter values if dot11OCBActivated is false ..... 65

Table 8-113

115—Optional Subelement IDs for Neighbor Report............................................................ 4966

Table 8-125

127—Subfields of the HT Extended Capabilities field.......................................................... 5067

Table 8-ac13

183u—Subfields of the VHT Capabilities Info field............................................................ 5168

Table 8-ac14

183v—VHT Supported MCS Set subfields.......................................................................... 5472

Table 8-ac15

183w—VHT Operation Information subfields..................................................................... 5573

Table 8-199—DLS Request frame Action field format ................................................................................ 79

Table 8-190

200—DLS Request Response frame Action field format ...................................................... 5979

Table 8-190

220—DLS Request frame Action field formatInformation for TDLS Discovery Response frame

Table 8-191

239—DLS Response frame Action field formatInformation for TDLS Setup Request frame......

Table 8-211

240—Information for TDLS Discovery Setup Response frame ............................................ 6080

Table 8-230

241—Information for TDLS Setup Request Confirm frame ................................................. 6081

Table 8-231

244—Information for TDLS Setup Response Channel Switch Request frame ..................... 6181

Table 8-232

262—Information for TDLS Setup Confirm frameMesh Peering Open frame Action field format

Table 8-235

263—Information for TDLS Channel Switch Request frameMesh Peering Confirm frame Action

field format ................................................................................................................................................

6182

Table 8-ac16

281ah—VHT Action field values ......................................................................................... 6282

Table 8-ac17

281ai—VHT Compressed Beamforming frame Action field format ................................... 6283

IEEE P802.11ac/D2.0, January 2012

This is an unapproved IEEE Standards Draft, subject to change.

Table 8-ac18281aj—Group ID Management VHT Compressed Beamforming Report frame Action field for-

matfields present ........................................................................................................................................ 6383

Table 8-ac19—Encoding of User Position subfield

...................................................................................... 64

Table 8-281ak—Group ID Management frame Action field format............................................................. 84

Table 8-ac20

281al—VHT Operating Mode Notification frame Action field format................................ 6484

Table 8-252

282—MPDU delimiter fields ................................................................................................. 6686

Table 8-253

283—A-MPDU Contexts ....................................................................................................... 6888

Table 8-ac21

288—A-MPDU contents MPDUs in the VHT single MPDU context ................................. 6888

Table 8-ac22—A-MPDU contents MPDUs in MU PPDU context

............................................................... 69

Table 9-4—Modulation classes ................................................................................................................... 100

Table 9-19—TXVECTOR parameters GROUP_ID and PARTIAL_AID settings for VHT SU PPDUs... 110

Table 9-20—Channel widths assumed to be idle for the channel-list parameter elements ......................... 119

Table 10-ac1

19a—VHT BSS operating channel width........................................................................... 97140

Table 17

18-1—TXVECTOR parameters .............................................................................................. 102150

Table 17

18-2—RXVECTOR parameters.............................................................................................. 103151

Table 17

18-ac16a—Contents of First 7 Bits of Scrambling Sequence when

CH_BANDWIDTH_IN_NON_HT is present.......................................................................................

104153

Table 22

18-16b—TXVECTOR and RXVECTOR parametersCH_BANDWIDTH_IN_NON_HT values .....

107

154

Table 18-6c—DYN_BANDWIDTH_IN_NON_HT values........................................................................ 154

Table 22-1—TXVECTOR and RXVECTOR parameters........................................................................... 163

Table 22-2— PPDU format as a function of CH_BANDWIDTH parameter .......................................

116171

Table 22-2

3—Mapping of the VHT PHY parameters for NON_HT operation.................................... 117174

Table 22-3

4—Fields of the VHT PLCP packetPPDU........................................................................... 118175

Table 22-4

5—Timing-related constants ................................................................................................ 129189

Table 22-5

6—Frequently used parameters............................................................................................ 130190

Table 22-6

7—Center frequency of a PPDU transmitted in frequency segment iSeg............................ 132194

Table 22-7

8—Value of tone Tone scaling factor and guard interval duration values for PLCP fields. 135197

Table 22-8

9—Cyclic shift values for L-STF, L-LTF, L-SIG and VHT-SIG-A fields of the packetPPDU ......

137

200

Table 22-9

10—Cyclic shift values of VHT portion of packetPPDU .................................................... 141205

Table 22-10

11—Fields in the VHT-SIG-A field................................................................................... 142206

Table 22-11

12—Number of VHT-LTFs required for different numbers of space time streams .......... 148211

Table 22-12

13—Fields in the VHT-SIG-B field................................................................................... 151215

Table 22-14—VHT-SIG-B bits in NDP for various channel widths........................................................... 216

Table 22-12

15—SERVICE field........................................................................................................... 156221

Table 22-13

16—Number of rows and columns in the interleaver ........................................................ 164230

Table 22-14

17— values......................................................................................................................... 165231

Table 22-15

18—LDPC tone mapping distance for each bandwidth ..................................................... 168234

Table 22-16

19—Constellation mapper output to spatial mapper input for STBC for user u................ 170236

Table 22-17

20—Pilot values for 80 MHz transmission ........................................................................ 171238

Table 22-18

21—Fields to specify VHT channels ................................................................................. 177245

Table 22-19

22—Maximum transmit spectral flatness deviations ......................................................... 182251

Table 22-20

23—Allowed relative constellation error versus constellation size and coding rate.......... 183253

Table 22-21

24—Receiver minimum input level sensitivity.................................................................. 185255

Table 22-22

25—Minimum required adjacent and nonadjacent channel rejection levels...................... 186256

Table 22-22

26—Conditions for CCA BUSY on the primary 20 MHz ................................................. 188258

Table 22-23

27—VHT PHY MIB attributes .......................................................................................... 196268

Table 22-24

28—VHT PHY characteristics........................................................................................... 200274

Table 22-25

29—VHT MCSs for mandatory 20 MHz, NSS = 1 ........................................................... 201274

Table 22-26

30—VHT MCSs for optional 20 MHz, NSS = 2 ............................................................... 201275

Table 22-27

31—VHT MCSs for optional 20 MHz, NSS = 3 ............................................................... 202275

Table 22-28

32—VHT MCSs for optional 20 MHz, NSS = 4 ............................................................... 202276

Table 22-29

33—VHT MCSs for optional 20 MHz, NSS = 5 ............................................................... 203276

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