mirror of https://github.com/PentHertz/srsLTE.git
67 lines
2.3 KiB
Matlab
67 lines
2.3 KiB
Matlab
enb=struct('NCellID',1,'NDLRB',25,'NSubframe',5,'CFI',2,'CyclicPrefix','Normal','CellRefP',1,'Ng','Sixth','PHICHDuration','Normal','DuplexMode','FDD');
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RNTI=65535;
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addpath('../../build/srslte/lib/phch/test')
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cec.PilotAverage = 'UserDefined'; % Type of pilot averaging
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cec.FreqWindow = 1; % Frequency window size
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cec.TimeWindow = 1; % Time window size
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cec.InterpType = 'linear'; % 2D interpolation type
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cec.InterpWindow = 'Causal'; % Interpolation window type
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cec.InterpWinSize = 1; % Interpolation window size
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%subframe_rx=lteOFDMDemodulate(enb,x);
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subframe_rx=reshape(x,[],14);
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[hest,nest] = lteDLChannelEstimate(enb, cec, subframe_rx);
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% Search PDCCH
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pdcchIndices = ltePDCCHIndices(enb);
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[pdcchRx, pdcchHest] = lteExtractResources(pdcchIndices, subframe_rx, hest);
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[dciBits, pdcchSymbols] = ltePDCCHDecode(enb, pdcchRx, pdcchHest, nest);
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pdcch = struct('RNTI', RNTI);
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[dci, dcidecBits] = ltePDCCHSearch(enb, pdcch, dciBits); % Search PDCCH for DCI
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if ~isempty(dci)
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dci = dci{1};
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disp(dci);
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% Get the PDSCH configuration from the DCI
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[pdsch, trblklen] = hPDSCHConfiguration(enb, dci, pdcch.RNTI);
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pdsch.NTurboDecIts = 10;
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%pdsch.Modulation = {'64QAM'};
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pdsch.RV=0;
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fprintf('PDSCH settings after DCI decoding:\n');
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disp(pdsch);
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fprintf('Decoding PDSCH...\n\n');
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% Get PDSCH indices
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[pdschIndices,pdschIndicesInfo] = ltePDSCHIndices(enb, pdsch, pdsch.PRBSet);
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[pdschRx, pdschHest] = lteExtractResources(pdschIndices, subframe_rx, hest);
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% Decode PDSCH
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[dlschBits,pdschSymbols] = ltePDSCHDecode(enb, pdsch, pdschRx, pdschHest, 0);
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[sib1, crc] = lteDLSCHDecode(enb, pdsch, trblklen, dlschBits);
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[dec2, data, pdschRx2, pdschSymbols2, e_bits] = srslte_pdsch(enb, pdsch, ...
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trblklen, ...
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subframe_rx, hest, 0);
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scatter(real(pdschSymbols{1}),imag(pdschSymbols{1}))
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if crc == 0
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fprintf('PDSCH OK.\n\n');
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else
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fprintf('PDSCH ERROR.\n\n');
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end
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else
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% indicate that DCI decoding failed
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fprintf('DCI decoding failed.\n\n');
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end
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%indices=indices+1;
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%plot(t,indices(t),t,pdschIndices(t))
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