| 1 | function [mcs_rom_11ag, mcs_rom_11n] = tx_mcs_info_rom_init() |
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| 2 | |
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| 3 | %Helper function to convert each MCS info entry into a UFix32_0 ROM word |
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| 4 | % Requries all inputs be integers! |
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| 5 | % Ouptut word contents: |
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| 6 | % b[ 0]: Chan bandwidth |
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| 7 | % b[ 2: 1]: Num spatial streams |
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| 8 | % b[ 4: 3]: Mod order index |
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| 9 | % b[ 6: 5]: Code rate index |
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| 10 | % b[16: 7]: Coded bits per symbol per stream |
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| 11 | % b[26:17]: Data bits per symbol per stream |
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| 12 | mcs_info_to_rom = @(x) (... |
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| 13 | 2^0 * x(2) + ... |
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| 14 | 2^1 * x(3) + ... |
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| 15 | 2^3 * x(4) + ... |
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| 16 | 2^5 * x(5) + ... |
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| 17 | 2^7 * x(6) + ... |
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| 18 | 2^17 * x(7) + ... |
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| 19 | 0); |
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| 20 | |
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| 21 | %Columns: |
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| 22 | % 1: MCS index |
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| 23 | % 2: Channel bandwidth (0=20, 1=40) |
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| 24 | % 3: Num spatial streams |
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| 25 | % 4: Mod order index (BPSK, QPSK, 16-QAM, 64-QAM) = (0, 1, 2, 3) |
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| 26 | % 5: Code rate index (1/2, 2/3, 3/4, 5/6) = (0, 1, 2, 3) |
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| 27 | % 6: Coded bits per OFDM symbol per spatial stream |
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| 28 | % 7: Data bits per OFDM symbol per spatial stream |
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| 29 | |
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| 30 | %802.11 a/g rates - IEEE 802.11-2012 Table 18-4 |
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| 31 | % Chapter 18 doesn't use the term "MCS", but it's a convenient |
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| 32 | % way to refer to these rates. |
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| 33 | mcs_info_11ag = [... |
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| 34 | [0, 0, 1, 0, 0, 48, 24];... |
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| 35 | [1, 0, 1, 0, 2, 48, 36];... |
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| 36 | [2, 0, 1, 1, 0, 96, 48];... |
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| 37 | [3, 0, 1, 1, 2, 96, 72];... |
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| 38 | [4, 0, 1, 2, 0, 192, 96];... |
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| 39 | [5, 0, 1, 2, 2, 192, 144];... |
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| 40 | [6, 0, 1, 3, 1, 288, 192];... |
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| 41 | [7, 0, 1, 3, 2, 288, 216];... |
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| 42 | ]; |
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| 43 | |
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| 44 | %802.11n rates - IEEE 802.11-2012 Tables 20-30 to 30-37 |
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| 45 | % Only equal modulation MCS are included here |
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| 46 | % MCS 32 is omitted (it's unused, as best I can tell) |
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| 47 | mcs_info_11n = [... |
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| 48 | [ 0, 0, 1, 0, 0, 52, 26];... |
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| 49 | [ 1, 0, 1, 1, 0, 104, 52];... |
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| 50 | [ 2, 0, 1, 1, 2, 104, 78];... |
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| 51 | [ 3, 0, 1, 2, 0, 208, 104];... |
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| 52 | [ 4, 0, 1, 2, 2, 208, 156];... |
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| 53 | [ 5, 0, 1, 3, 1, 312, 208];... |
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| 54 | [ 6, 0, 1, 3, 2, 312, 234];... |
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| 55 | [ 7, 0, 1, 3, 3, 312, 260];... |
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| 56 | [ 8, 0, 2, 0, 0, 52, 26];... |
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| 57 | [ 9, 0, 2, 1, 0, 104, 52];... |
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| 58 | [10, 0, 2, 1, 2, 104, 78];... |
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| 59 | [11, 0, 2, 2, 0, 208, 104];... |
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| 60 | [12, 0, 2, 2, 2, 208, 156];... |
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| 61 | [13, 0, 2, 3, 1, 312, 208];... |
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| 62 | [14, 0, 2, 3, 2, 312, 234];... |
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| 63 | [15, 0, 2, 3, 3, 312, 260];... |
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| 64 | [16, 0, 3, 0, 0, 52, 26];... |
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| 65 | [17, 0, 3, 1, 0, 104, 52];... |
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| 66 | [18, 0, 3, 1, 2, 104, 78];... |
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| 67 | [19, 0, 3, 2, 0, 208, 104];... |
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| 68 | [20, 0, 3, 2, 2, 208, 156];... |
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| 69 | [21, 0, 3, 3, 1, 312, 208];... |
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| 70 | [22, 0, 3, 3, 2, 312, 234];... |
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| 71 | [23, 0, 3, 3, 3, 312, 260];... |
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| 72 | [24, 0, 4, 0, 0, 52, 26];... |
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| 73 | [25, 0, 4, 1, 0, 104, 52];... |
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| 74 | [26, 0, 4, 1, 2, 104, 78];... |
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| 75 | [27, 0, 4, 2, 0, 208, 104];... |
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| 76 | [28, 0, 4, 2, 2, 208, 156];... |
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| 77 | [29, 0, 4, 3, 1, 312, 208];... |
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| 78 | [30, 0, 4, 3, 2, 312, 234];... |
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| 79 | [31, 0, 4, 3, 3, 312, 260];... |
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| 80 | [ 0, 1, 1, 0, 0, 108, 54];... |
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| 81 | [ 1, 1, 1, 1, 0, 216, 108];... |
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| 82 | [ 2, 1, 1, 1, 2, 216, 162];... |
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| 83 | [ 3, 1, 1, 2, 0, 432, 216];... |
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| 84 | [ 4, 1, 1, 2, 2, 432, 324];... |
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| 85 | [ 5, 1, 1, 3, 1, 648, 432];... |
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| 86 | [ 6, 1, 1, 3, 2, 648, 486];... |
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| 87 | [ 7, 1, 1, 3, 3, 648, 540];... |
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| 88 | [ 8, 1, 2, 0, 0, 108, 54];... |
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| 89 | [ 9, 1, 2, 1, 0, 216, 108];... |
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| 90 | [10, 1, 2, 1, 2, 216, 162];... |
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| 91 | [11, 1, 2, 2, 0, 432, 216];... |
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| 92 | [12, 1, 2, 2, 2, 432, 324];... |
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| 93 | [13, 1, 2, 3, 1, 648, 432];... |
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| 94 | [14, 1, 2, 3, 2, 648, 486];... |
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| 95 | [15, 1, 2, 3, 3, 648, 540];... |
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| 96 | [16, 1, 3, 0, 0, 108, 54];... |
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| 97 | [17, 1, 3, 1, 0, 216, 108];... |
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| 98 | [18, 1, 3, 1, 2, 216, 162];... |
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| 99 | [19, 1, 3, 2, 0, 432, 216];... |
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| 100 | [20, 1, 3, 2, 2, 432, 324];... |
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| 101 | [21, 1, 3, 3, 1, 648, 432];... |
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| 102 | [22, 1, 3, 3, 2, 648, 486];... |
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| 103 | [23, 1, 3, 3, 3, 648, 540];... |
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| 104 | [24, 1, 4, 0, 0, 108, 54];... |
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| 105 | [25, 1, 4, 1, 0, 216, 108];... |
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| 106 | [26, 1, 4, 1, 2, 216, 162];... |
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| 107 | [27, 1, 4, 2, 0, 432, 216];... |
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| 108 | [28, 1, 4, 2, 2, 432, 324];... |
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| 109 | [29, 1, 4, 3, 1, 648, 432];... |
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| 110 | [30, 1, 4, 3, 2, 648, 486];... |
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| 111 | [31, 1, 4, 3, 3, 648, 540];... |
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| 112 | ]; |
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| 113 | |
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| 114 | %Convert each MCS info array to a vector of ROM words |
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| 115 | mcs_rom_11ag = zeros(1, size(mcs_info_11ag, 1)); |
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| 116 | for nn = 1:numel(mcs_rom_11ag) |
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| 117 | mcs_rom_11ag(nn) = mcs_info_to_rom(mcs_info_11ag(nn, :)); |
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| 118 | end |
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| 119 | |
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| 120 | mcs_rom_11n = zeros(1, size(mcs_info_11n, 1)); |
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| 121 | for nn = 1:numel(mcs_rom_11n) |
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| 122 | mcs_rom_11n(nn) = mcs_info_to_rom(mcs_info_11n(nn, :)); |
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| 123 | end |
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| 124 | |
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