Материал для публикации взят отсюда.
MCS расшифровывается как индекс модуляции и схемы кодирования. Это показатель, отражает реальную физическую (PHY) или канальную скорость передачи данных для каждого кадра в 802.11n и 802.11ac . Точка доступа (AP) и абонентское устройство (ST) в процессе взаимодействия согласуют между собой количество пространственных потоков (NSS), ширину канала (20, 40, 80, 160 МГц), защитный интервал (GI), тип модуляции и скорость () могут изменять скорость передачи данных в каждом физическом кадре.
MCS для стандарта 802.11ac
PHY-кадр 802.11ac содержит поле, определяющее MCS или скорость передачи данных в каждом кадре радиосвязи.
Таблица ниже упрощенная версия спецификаций 802.11ac-22.5 для VHT-MCS:
| VHT MCS Index | Число потоков | Модуляция | Data Rate (Mbps) | ||||||||
| 20 Mhz | 40 Mhz | 80 Mhz | 160 Mhz | ||||||||
| 800 ns | 400 ns | 800 ns | 400 ns | 800 ns | 400 ns | 800 ns | 400 ns | ||||
| 0 | 1 | BPSK | 1/2 | 6.5 | 7.2 | 13.5 | 15.0 | 29.3 | 32.5 | 58.5 | 65.0 |
| 1 | 1 | QPSK | 1/2 | 13.0 | 14.4 | 27.0 | 30.0 | 58.5 | 65.0 | 117.0 | 130.0 |
| 2 | 1 | PQSK | 3/4 | 19.5 | 21.7 | 40.5 | 45.0 | 87.8 | 97.5 | 175.5 | 195.0 |
| 3 | 1 | 16-QAM | 1/2 | 26.0 | 28.9 | 54.0 | 60.0 | 117.0 | 130.0 | 234.0 | 260.0 |
| 4 | 1 | 16-QAM | 3/4 | 39.0 | 43.3 | 81.0 | 90.0 | 175.5 | 195.0 | 351.0 | 390.0 |
| 5 | 1 | 16-QAM | 2/3 | 52.0 | 57.8 | 108.0 | 120.0 | 234.0 | 260.0 | 468.0 | 520.0 |
| 6 | 1 | 64-QAM | 3/4 | 58.5 | 65.0 | 121.5 | 135.0 | 263.3 | 292.5 | 526.5 | 585.0 |
| 7 | 1 | 64-QAM | 5/6 | 65.0 | 72.2 | 135.0 | 150.0 | 292.5 | 325.0 | 585.0 | 650.0 |
| 8 | 1 | 256-QAM | 3/4 | 78.0 | 86.7 | 162.0 | 180.0 | 351.0 | 390.0 | 702.0 | 780.0 |
| 9 | 1 | n/a | n/a | n/a | n/a | 180.0 | 200.0 | 390.0 | 433.3 | 780.0 | 866.7 |
| 0 | 2 | BPSK | 1/2 | 13.0 | 14.4 | 27.0 | 30.0 | 58.5 | 65.0 | 117.0 | 130.0 |
| 1 | 2 | QPSK | 1/2 | 26.0 | 28.9 | 54.0 | 60.0 | 117.0 | 130.0 | 234.0 | 260.0 |
| 2 | 2 | PQSK | 3/4 | 39.0 | 43.3 | 81.0 | 90.0 | 175.5 | 195.0 | 351.0 | 390.0 |
| 3 | 2 | 16-QAM | 1/2 | 52.0 | 57.8 | 108.0 | 120.0 | 234.0 | 260.0 | 468.0 | 520.0 |
| 4 | 2 | 16-QAM | 3/4 | 78.0 | 86.7 | 162.0 | 180.0 | 351.0 | 390.0 | 702.0 | 780.0 |
| 5 | 2 | 16-QAM | 2/3 | 104.0 | 115.6 | 216.0 | 240.0 | 468.0 | 520.0 | 936.0 | 1040.0 |
| 6 | 2 | 64-QAM | 3/4 | 117.0 | 130.0 | 243.0 | 270.0 | 526.5 | 585.0 | 1053.0 | 1170.0 |
| 7 | 2 | 64-QAM | 5/6 | 130.0 | 144.4 | 270.0 | 300.0 | 585.0 | 650.0 | 1170.0 | 1300.0 |
| 8 | 2 | 256-QAM | 3/4 | 156.0 | 173.3 | 324.0 | 360.0 | 702.0 | 780.0 | 1404.0 | 1560.0 |
| 9 | 2 | n/a | n/a | n/a | n/a | 360.0 | 400.0 | 780.0 | 866.7 | 1560.0 | 1733.3 |
| 0 | 3 | BPSK | 1/2 | 19.5 | 21.7 | 40.5 | 45.0 | 87.8 | 97.5 | 175.5 | 195.0 |
| 1 | 3 | QPSK | 1/2 | 39.0 | 43.3 | 81.0 | 90.0 | 175.5 | 195.0 | 351.0 | 390.0 |
| 2 | 3 | PQSK | 3/4 | 58.5 | 65.0 | 121.5 | 135.0 | 263.3 | 292.5 | 526.5 | 585.0 |
| 3 | 3 | 16-QAM | 1/2 | 78.0 | 86.7 | 162.0 | 180.0 | 351.0 | 390.0 | 702.0 | 780.0 |
| 4 | 3 | 16-QAM | 3/4 | 117.0 | 130.0 | 243.0 | 270.0 | 526.5 | 585.0 | 1053.0 | 1170.0 |
| 5 | 3 | 16-QAM | 2/3 | 156.0 | 173.3 | 324.0 | 360.0 | 702.0 | 780.0 | 1404.0 | 1560.0 |
| 6 | 3 | 64-QAM | 3/4 | 175.5 | 195.0 | 364.5 | 405.0 | n/a | n/a | 1579.5 | 1755.0 |
| 7 | 3 | 64-QAM | 5/6 | 195.0 | 216.7 | 405.0 | 450.0 | 877.5 | 975.0 | 1755.0 | 1950.0 |
| 8 | 3 | 256-QAM | 3/4 | 234.0 | 260.0 | 486.0 | 540.0 | 1053.0 | 1170.0 | 2106.0 | 2340.0 |
| 9 | 3 | 256-QAM | 5/6 | 260.0 | 288.9 | 540.0 | 600.0 | 1170.0 | 1300.0 | n/a | n/a |
| 0 | 4 | BPSK | 1/2 | 26.0 | 28.9 | 54.0 | 60.0 | 117.0 | 130.0 | 234.0 | 260.0 |
| 1 | 4 | QPSK | 1/2 | 52.0 | 57.8 | 108.0 | 120.0 | 234.0 | 260.0 | 468.0 | 520.0 |
| 2 | 4 | PQSK | 3/4 | 78.0 | 86.7 | 162.0 | 180.0 | 351.0 | 390.0 | 702.0 | 780.0 |
| 3 | 4 | 16-QAM | 1/2 | 104.0 | 115.6 | 216.0 | 240.0 | 468.0 | 520.0 | 936.0 | 1040.0 |
| 4 | 4 | 16-QAM | 3/4 | 156.0 | 173.3 | 324.0 | 360.0 | 702.0 | 780.0 | 1404.0 | 1560.0 |
| 5 | 4 | 16-QAM | 2/3 | 208.0 | 231.1 | 432.0 | 480.0 | 936.0 | 1040.0 | 1872.0 | 2080.0 |
| 6 | 4 | 64-QAM | 3/4 | 234.0 | 260.0 | 486.0 | 540.0 | 1053.0 | 1170.0 | 2106.0 | 2340.0 |
| 7 | 4 | 64-QAM | 5/6 | 260.0 | 288.9 | 540.0 | 600.0 | 1170.0 | 1300.0 | 2340.0 | 2600.0 |
| 8 | 4 | 256-QAM | 3/4 | 312.0 | 346.7 | 648.0 | 720.0 | 1404.0 | 1560.0 | 2808.0 | 3120.0 |
| 9 | 4 | n/a | n/a | n/a | n/a | 720.0 | 800.0 | 1560.0 | 1733.3 | 3120.0 | 3466.7 |
| 0 | 5 | BPSK | 1/2 | 32.5 | 36.1 | 67.5 | 75.0 | 146.3 | 162.5 | 292.5 | 325.0 |
| 1 | 5 | QPSK | 1/2 | 65.0 | 72.2 | 135.5 | 150.0 | 292.5 | 325.0 | 585.0 | 650.0 |
| 2 | 5 | PQSK | 3/4 | 97.5 | 108.3 | 202.5 | 225.0 | 438.8 | 487.5 | 877.5 | 975.0 |
| 3 | 5 | 16-QAM | 1/2 | 130.0 | 144.4 | 270.0 | 300.0 | 585.0 | 650.0 | 1170.0 | 1300.0 |
| 4 | 5 | 16-QAM | 3/4 | 195.0 | 216.7 | 405.0 | 450.0 | 877.5 | 975.0 | 1755.0 | 1950.0 |
| 5 | 5 | 16-QAM | 2/3 | 260.0 | 288.9 | 540.0 | 600.0 | 1170.0 | 1300.0 | 2340.0 | 2600.0 |
| 6 | 5 | 64-QAM | 3/4 | 292.5 | 325.0 | 607.5 | 675.0 | 1316.3 | 1462.5 | 2632.5 | 2925.0 |
| 7 | 5 | 64-QAM | 5/6 | 325.0 | 361.1 | 675.0 | 750.0 | 1462.5 | 1625.0 | 2925.0 | 3250.0 |
| 8 | 5 | 256-QAM | 3/4 | 390.0 | 433.3 | 810.0 | 900.0 | 1755.0 | 1950.0 | 3510.0 | 3900.0 |
| 9 | 5 | n/a | n/a | n/a | n/a | 900.0 | 1000.0 | 1950.0 | 2166.7 | 3900.0 | 4333.3 |
| 0 | 6 | BPSK | 1/2 | 39.0 | 43.3 | 81.0 | 90.0 | 175.5 | 195.0 | 351.0 | 390.0 |
| 1 | 6 | QPSK | 1/2 | 78.0 | 86.7 | 162.0 | 180.0 | 351.0 | 390.0 | 702.0 | 780.0 |
| 2 | 6 | PQSK | 3/4 | 117.0 | 130.0 | 243.0 | 270.0 | 526.5 | 585.0 | 1053.0 | 1170.0 |
| 3 | 6 | 16-QAM | 1/2 | 156.0 | 173.3 | 324.0 | 360.0 | 702.0 | 780.0 | 1404.0 | 1560.0 |
| 4 | 6 | 16-QAM | 3/4 | 234.0 | 260.0 | 486.0 | 540.0 | 1053.0 | 1170.0 | 2106.0 | 2340.0 |
| 5 | 6 | 16-QAM | 2/3 | 312.0 | 346.7 | 648.0 | 720.0 | 1404.0 | 1560.0 | 2808.0 | 3120.0 |
| 6 | 6 | 64-QAM | 3/4 | 351.0 | 390.0 | 729.0 | 810.0 | 1579.0 | 1755.0 | 3159.0 | 3510.0 |
| 7 | 6 | 64-QAM | 5/6 | 390.0 | 433.3 | 810.0 | 900.0 | 1755.0 | 1950.0 | 3510.0 | 3900.0 |
| 8 | 6 | 256-QAM | 3/4 | 468.0 | 520.0 | 972.0 | 1080.0 | 2106.0 | 2340.0 | 4212.0 | 4680.0 |
| 9 | 6 | 256-QAM | 5/6 | 520.0 | 577.8 | 1080.0 | 1200.0 | n/a | n/a | 4680.0 | 5200.0 |
| 0 | 7 | BPSK | 1/2 | 45.5 | 50.6 | 94.5 | 105.0 | 204.8 | 227.5 | 409.5 | 455.0 |
| 1 | 7 | QPSK | 1/2 | 91.0 | 101.1 | 189.0 | 210.0 | 409.5 | 455.0 | 819.0 | 910.0 |
| 2 | 7 | PQSK | 3/4 | 136.5 | 151.7 | 283.5 | 315.0 | 614.3 | 682.5 | 1228.5 | 1365.0 |
| 3 | 7 | 16-QAM | 1/2 | 182.0 | 202.2 | 378.0 | 420.0 | 819.0 | 910.0 | 1638.0 | 1820.0 |
| 4 | 7 | 16-QAM | 3/4 | 273.0 | 303.3 | 567.0 | 630.0 | 1228.5 | 1365.0 | 2457.0 | 2730.0 |
| 5 | 7 | 16-QAM | 2/3 | 364.0 | 404.4 | 756.0 | 840.0 | 1638.0 | 1820.0 | 3276.0 | 3640.0 |
| 6 | 7 | 64-QAM | 3/4 | 409.5 | 455.0 | 850.0 | 945.0 | n/a | n/a | 3685.0 | 4095.0 |
| 7 | 7 | 64-QAM | 5/6 | 455.0 | 505.6 | 945.0 | 1050.0 | 2047.5 | 2275.0 | 4095.0 | 4550.0 |
| 8 | 7 | 256-QAM | 3/4 | 546.0 | 606.7 | 1134.0 | 1260.0 | 2457.0 | 2730.0 | 4914.0 | 5460.0 |
| 9 | 7 | n/a | n/a | n/a | n/a | 1260.0 | 1400.0 | 2730.0 | 3033.3 | 5460.0 | 6066.7 |
| 0 | 8 | BPSK | 1/2 | 52.0 | 57.8 | 108.0 | 120.0 | 234.0 | 260.0 | 468.0 | 520.0 |
| 1 | 8 | QPSK | 1/2 | 104.0 | 115.6 | 216.0 | 240.0 | 468.0 | 520.0 | 936.0 | 1040.0 |
| 2 | 8 | PQSK | 3/4 | 156.0 | 173.3 | 324.0 | 360.0 | 702.0 | 780.0 | 1404.0 | 1560.0 |
| 3 | 8 | 16-QAM | 1/2 | 208.0 | 231.1 | 432.0 | 480.0 | 936.0 | 1040.0 | 1872.0 | 2080.0 |
| 4 | 8 | 16-QAM | 3/4 | 312.0 | 346.7 | 648.0 | 720.0 | 1404.0 | 1560.0 | 2808.0 | 3120.0 |
| 5 | 8 | 16-QAM | 2/3 | 416.0 | 462.2 | 864.0 | 960.0 | 1872.0 | 2080.0 | 3744.0 | 4160.0 |
| 6 | 8 | 64-QAM | 3/4 | 468.0 | 520.0 | 972.0 | 1080.0 | 2106.0 | 2340.0 | 4212.0 | 4680.0 |
| 7 | 8 | 64-QAM | 5/6 | 520.0 | 577.8 | 1080.0 | 1200.0 | 2340.0 | 2600.0 | 4680.0 | 5200.0 |
| 8 | 8 | 256-QAM | 3/4 | 624.0 | 693.3 | 1296.0 | 1440.0 | 2808.0 | 3120.0 | 5616.0 | 6240.0 |
| 9 | 8 | n/a | n/a | n/a | n/a | 1440.0 | 1660.0 | 3120.0 | 3466.7 | 6240.0 | 6933.3 |
MCS для стандарта 802.11ad
Кадр 802.11ad имеет несколько иную структуру:
