Sakthivel Velumani
59ff9ae04e
Since there is no UCI on PUSCH implementation in gNB, it is good to test UE's implementation with matlab. This commit allows to test with matlab in two ways: 1. generate OFDM waveform from ulsim and decode it in matlab using uci_on_pusch_decode.m 2. generate codeword in matlab using uci_on_pusch_encode.m read it in ulsim and compare the bits. ulsim option -o is used
86 lines
2.3 KiB
Matlab
86 lines
2.3 KiB
Matlab
% ulsim command for same pusch config
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% ./nr_ulsim -m 27 -u 1 -R 51 -r 51 -s 300 -o uci_on_pusch_7.bin
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carrier = nrCarrierConfig;
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carrier.NSizeGrid = 51;
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carrier.NSlot = 8;
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carrier.SubcarrierSpacing = 30;
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carrier.CyclicPrefix = "normal";
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pusch = nrPUSCHConfig;
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pusch.PRBSet = 0:carrier.NSizeGrid-1;
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pusch.SymbolAllocation = [0,12];
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pusch.MappingType = "B";
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pusch.NID = 0;
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pusch.RNTI = 4660;
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pusch.NumLayers = 1;
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pusch.TransformPrecoding = false;
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pusch.TransmissionScheme = "nonCodebook";
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pusch.NumAntennaPorts = 1;
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pusch.TPMI = 0;
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pusch.Modulation = "64QAM";
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pusch.DMRS.DMRSConfigurationType = 1;
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pusch.DMRS.DMRSTypeAPosition = 2;
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pusch.DMRS.NumCDMGroupsWithoutData = 1;
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pusch.DMRS.DMRSAdditionalPosition = 0;
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pusch.DMRS.NIDNSCID = 0;
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pusch.DMRS.NRSID = 0;
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pusch.DMRS.NSCID = 0;
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pusch.DMRS.GroupHopping = 0;
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pusch.DMRS.SequenceHopping = 0;
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pusch.BetaOffsetACK = 20;
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pusch.BetaOffsetCSI1 = 6.25;
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pusch.BetaOffsetCSI2 = 1;
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pusch.UCIScaling = 1;
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A = 37896;
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rate = 910 / 1024;
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rv = 0;
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modulation = pusch.Modulation;
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nlayers = pusch.NumLayers; % Number of layers for decoding
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oack = 7;
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ocsi1 = 0;
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ocsi2 = 0;
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cbsInfo = nrULSCHInfo(pusch, rate, A, oack, ocsi1, ocsi2); % Get ULSCH information
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ack = randi([0 1],oack,1);
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csi1 = randi([0 1],ocsi1,1);
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csi2 = randi([0 1],ocsi2,1);
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cack = nrUCIEncode(ack,cbsInfo.GACK,pusch.Modulation);
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ccsi1 = [];
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ccsi2 = [];
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tb_data = randi([0 1],A,1);
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% Transport block CRC attachment
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tbIn = nrCRCEncode(tb_data,cbsInfo.CRC);
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% Code block segmentation and CRC attachment
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cbsIn = nrCodeBlockSegmentLDPC(tbIn,cbsInfo.BGN);
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% LDPC encoding
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enc = nrLDPCEncode(cbsIn,cbsInfo.BGN);
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% Rate matching and code block concatenation
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chIn = nrRateMatchLDPC(enc,cbsInfo.GULSCH,rv,modulation,nlayers);
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culsch = chIn;
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% Get the codeword and locations of each type (data and UCI)
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[cw,indInfo] = nrULSCHMultiplex(pusch,rate,A,culsch,cack,ccsi1,ccsi2);
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cw_scr = nrPUSCHScramble(cw,pusch.NID,pusch.RNTI);
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% Write to bin file
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fid = fopen('uci_on_pusch_7.bin', 'wb');
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to_write = [A,oack,ocsi1,ocsi2,length(cw),length(cw_scr)];
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fwrite(fid, to_write, 'uint32'); % Write the data to the binary file
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fwrite(fid, tb_data, "uint8");
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fwrite(fid, ack, "uint8");
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fwrite(fid, csi1, "uint8");
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fwrite(fid, csi2, "uint8");
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fwrite(fid, cw, "uint8");
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fwrite(fid, cw_scr, "uint8");
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fclose(fid); % Close the file after writing
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