loadFromFile = 0;%设置为1加载波形捕获如果loadFromFile%负载捕获的波形rx =负载(“capturedWaveformSIB1.mat”);rxWaveform = rx.waveform;%配置接收机的采样率(样本/秒)rxSampleRate = rx.sampleRate;%符号相位补偿频率。指定承运人中心%频率或相位补偿设置为0禁用标志fPhaseComp = rx.fPhaseComp;%载波中心频率(赫兹)%设置最小通道带宽所必需的NR乐队%在FR1配置CORESET0(见表5.3.5-1 TS 38.101 - 1)minChannelBW = rx.minChannelBW;% 5 10 40 MHz%在接收器配置必要的爆破参数。单边带模式%可以的情况下,“案例B”、“案例C”FR1或“D”,“E”% FR2。的最大数量可以4或8块L_max FR1和64年FR2 %。refBurst。BlockPattern = rx.ssbBlockPattern;refBurst。L_max = rx.L_max;其他的包含党卫军破裂,SIB1 %产生波形%配置单元的身份配置=结构();配置。NCellID = 102;%配置一个党卫军破裂配置。BlockPattern =“案例B”;% FR1:“情况”、“案例B”、“案例C”。FR2:“D”、“E”配置。TransmittedBlocks = 1 (1,8);%党卫军的位图块传输配置。SubcarrierSpacingCommon = 15;% SIB1副载波间距FR1千赫(15或30。FR2 60或120)配置。EnableSIB1 = 1;%设置为0禁用SIB1%设置最小通道带宽所必需的NR乐队%在FR1配置CORESET0(见表5.3.5-1 TS 38.101 - 1)配置。MinChannelBW = 5;% 5 10 40 MHz%配置和生成一个包含党卫军破裂,SIB1波形wavegenConfig = hSIB1WaveformConfiguration(配置);[txWaveform, waveInfo] = nrWaveformGenerator (wavegenConfig);txOfdmInfo = waveInfo.ResourceGrids(1)信息;%引入一个波束形成获得通过提高一个单边带和信噪比%相关SIB1 PDCCH PDSCHssbIdx = 0;%的指数单边带提高(基于)提高= 6;在dB %信噪比提高txWaveform = hSIB1Boost (txWaveform wavegenConfig、waveInfo ssbIdx,提高);%添加高斯白噪声波形rng (“默认”);%重置随机数发生器SNRdB = 20;%信噪比的情况下rxWaveform = awgn (txWaveform SNRdB-boost -10 * log10(双(txOfdmInfo.Nfft)));%配置接收机%采样率rxSampleRate = txOfdmInfo.SampleRate;%符号相位补偿频率(赫兹)。这个函数% nrWaveformGenerator不适用相位补偿的象征%生成的波形。fPhaseComp = 0;%载波中心频率(赫兹)%的最小通道带宽(MHz)minChannelBW = config.MinChannelBW;%在接收器配置必要的爆破参数refBurst。BlockPattern = config.BlockPattern;refBurst。L_max =元素个数(config.TransmittedBlocks);结束%得到OFDM破裂和接收机参数信息配置nrbSSB = 20;scsSSB = hSSBurstSubcarrierSpacing (refBurst.BlockPattern);rxOfdmInfo = nrOFDMInfo (nrbSSB scsSSB,“SampleRate”,rxSampleRate);%显示接收波形的光谱图图;nfft = rxOfdmInfo.Nfft;光谱图(rxWaveform(: 1)的(nfft, 1), 0, nfft,“中心”rxSampleRate,“桠溪”,“MinThreshold”,-130);标题(接收到的波形的光谱图)

disp (“——频率校正和时间估计”)%指定频率偏移搜索在千赫带宽searchBW = 6 * scsSSB;[rxWaveform, freqOffset NID2] = hSSBurstFrequencyCorrect (rxWaveform、refBurst.BlockPattern rxSampleRate, searchBW);disp ([的频率偏移量:num2str (freqOffset“% .0f”)“赫兹”])

%创建一个参考网格使用发现PSS定时估计。PSS的%被放置在第二网格,以避免OFDM符号的引用%特殊CP第一个OFDM符号的长度。refGrid = 0 ([nrbSSB * 12 2]);refGrid (nrPSSIndices 2) = nrPSS (NID2);%的第二个OFDM符号正确CP长度%的时间估计。这是时间抵消之前OFDM符号%的单边带发现由于内容参考网格nSlot = 0;timingOffset = nrTimingEstimate (rxWaveform nrbSSB、scsSSB nSlot, refGrid,“SampleRate”,rxSampleRate);%同步、OFDM解调和提取最强党卫军块rxGrid = nrOFDMDemodulate (rxWaveform (1 + timingOffset:,:), nrbSSB, scsSSB, nSlot,“SampleRate”,rxSampleRate);2:5,rxGrid = rxGrid (::);%显示样品的时间抵消。作为象征的长度测量% FFT样本,规模的符号长度占接收机%采样率。srRatio = rxSampleRate / (e3 * rxOfdmInfo.Nfft scsSSB * 1);* srRatio firstSymbolLength = rxOfdmInfo.SymbolLengths (1);str = sprintf (的时间抵消同步块:% %。0 f样本(% % %。0 ff) \ n '女士、地板(log10 (rxSampleRate)) 3);流(str timingOffset + firstSymbolLength (timingOffset + firstSymbolLength) / rxSampleRate * 1 e3);

%提取收到SS / PBCH SSS符号块sssIndices = nrSSSIndices;sssRx = nrExtractResources (sssIndices rxGrid);%关联收到瑞士符号,每个可能的SSS序列党卫军= 0 (1336);为NID1 = 0:335 ncellid = (3 * NID1) + NID2;sssRef = nrSSS (ncellid);党卫军(NID1 + 1) =总和(abs(平均(sssRx。*连词(sssRef), 1)) ^ 2);结束%的阴谋SSS的相关性图;茎(0:335党卫军,“o”);标题(“瑞士相关性(频域)”);包含(“美元N_ {ID} ^ {(1)} $”,“翻译”,“乳胶”);ylabel (“级”);轴([1 336 0马克斯(ss) * 1.1]);%确定NID1通过寻找最强的相关性NID1 =找到(ss = = max (ss)) - 1;%情节选择NID1持有在;情节(NID1马克斯(ss),“kx”,“线宽”2,“MarkerSize”8);传奇([“相关性”" $ N_ {ID} ^ {(1)} $ = "+ num2str (NID1)),“翻译”,“乳胶”);%整体细胞身份估计NID1和NID2形式ncellid = (3 * NID1) + NID2;disp ([的细胞标识:num2str (ncellid)))

%计算PBCH DM-RS指数dmrsIndices = nrPBCHDMRSIndices (ncellid);%使用DM-RS符号执行信道估计为每个可能的DM-RS%序列和估计信噪比dmrsEst = 0 (1,8);为ibar_SSB = 0:7 refGrid = 0 (240 [4]);refGrid (dmrsIndices) = nrPBCHDMRS (ncellid ibar_SSB);[命令,巢]= nrChannelEstimate (rxGrid refGrid,“AveragingWindow”[0,1]);dmrsEst (ibar_SSB + 1) = 10 * log10(平均(abs(命令(:)。^ 2))/巢);结束%绘制PBCH DM-RS信噪比图;茎(0:7 dmrsEst,“o”);标题(“PBCH DM-RS信噪比估计的);包含(“美元\眉题{我}_{单边带}$”,“翻译”,“乳胶”);xticks (0:7);ylabel (“估计信噪比(dB)”);轴([1 8分钟(dmrsEst) 1马克斯(dmrsEst) + 1]);%记录ibar_SSB最高的信噪比ibar_SSB =找到(dmrsEst = = max (dmrsEst)) - 1;%情节选择ibar_SSB持有在;情节(ibar_SSB马克斯(dmrsEst),“kx”,“线宽”2,“MarkerSize”8);传奇([“信噪比”" $ \眉题{我}_{单边带}$ = "+ num2str (ibar_SSB)),“翻译”,“乳胶”);

refGrid = 0 ([nrbSSB * 12 4]);refGrid (dmrsIndices) = nrPBCHDMRS (ncellid ibar_SSB);refGrid (sssIndices) = nrSSS (ncellid);[命令,鸟巢,hestInfo] = nrChannelEstimate (rxGrid refGrid,“AveragingWindow”[0,1]);

disp (“——PBCH解调和BCH译码——”)%提取收到SS / PBCH PBCH符号块[pbchIndices, pbchIndicesInfo] = nrPBCHIndices (ncellid);pbchRx = nrExtractResources (pbchIndices rxGrid);%为PBCH配置“v”纷纷根据7.3.3.1 TS 38.211部分% ' v '也是2 SS / PBCH块索引的lsb L_max = 4,或3% lsb L_max = 8或64。如果refBurst。L_max = = 4 v =国防部(ibar_SSB 4);其他的v = ibar_SSB;结束ssbIndex = v;% PBCH均衡和CSI计算pbchHest = nrExtractResources (pbchIndices、命令);[pbchEq, csi] = nrEqualizeMMSE (pbchRx pbchHest,巢);Qm = pbchIndicesInfo。G / pbchIndicesInfo.Gd;csi = repmat (csi。”、Qm 1);csi =重塑(csi, [], 1);%的阴谋收到PBCH均衡后的星座图;情节(pbchEq“o”);包含(“同步”);ylabel (“交”)标题(“均衡PBCH星座”);m = max (abs([真实(pbchEq (:));图像放大(pbchEq (:))))) * 1.1;轴([- m m - m m]);% PBCH解调pbchBits = nrPBCHDecode (pbchEq ncellid, v,巢);%计算均方根PBCH维生素pbchRef = nrPBCH (pbchBits < 0 ncellid v);维生素与= comm.EVM;pbchEVMrms =维生素(pbchRef pbchEq);%显示维生素与计算disp ([“PBCH RMS维生素:”num2str (pbchEVMrms' % 0.3 f ')“%”]);

%应用CSIpbchBits = pbchBits。* csi;%执行BCH译码包括速度复苏,极地解码和CRC%解码。PBCH descrambling和BCH传输块的分离%位从8额外负载trblk的位…一个+ 7也可以执行:%…+ 3:4 lsb的系统帧数% + 4:帧数的一半% + 5…L_max = 64 + 7:, 3位元的SS / PBCH块索引% L_max = 4或8 + 5是副载波的MSB抵消k_SSBpolarListLength = 8;[~,crcBCH trblk、sfn4lsb nHalfFrame, msbidxoffset] =…nrBCHDecode (pbchBits polarListLength、refBurst.L_max ncellid);%显示BCH CRCdisp ([“BCH CRC:”num2str (crcBCH)]);%停止处理MIB和SIB1 BCH收到了错误如果crcBCH disp (BCH CRC不为零。);返回结束%使用“msbidxoffset”值设置的“k_SSB”或“ssbIndex”,不同%的数量在爆炸中SS / PBCH块如果(refBurst.L_max = = 64) ssbIndex = ssbIndex + (bi2de (msbidxoffset。’,“left-msb”)* 8);k_SSB = 0;其他的k_SSB = msbidxoffset * 16;结束%显示单边带索引disp ([的单边带指数:num2str (ssbIndex)]);

%创建组副载波间距暗示的第七位解码% MIB,一组是不同的FR1 (L_max = 4或8)和FR2 (L_max = 64)如果(refBurst.L_max = = 64) commonSCSs = (120);其他的commonSCSs = 30 [15];结束%的MIB字段创建一个结构解码MIB碎片。的BCH%传输块的trblk RRC消息BCCH-BCH-Message组成%的0位23位对应MIBmib。NFrame = bi2de ([trblk (7);sfn4lsb]。”“left-msb”);mib。SubcarrierSpacingCommon = commonSCSs (trblk (8) + 1);mib。k_SSB = k_SSB + bi2de (trblk (9:12)。”“left-msb”);mib。DMRSTypeAPosition = 2 + trblk (13);mib。PDCCHConfigSIB1 = bi2de (trblk (14:21)。”“left-msb”);mib。CellBarred = trblk (22);mib。IntraFreqReselection = trblk (23);%显示MIB结构disp (的BCH / MIB的内容:)disp (mib);%检查如果CORESET Type0-PDCCH常见搜索空间(CSS),%根据TS 38.213 4.1节如果~ isCORESET0Present (refBurst.BlockPattern mib.k_SSB)流(“CORESET0不存在(k_SSB > k_SSB_max)。\ n”);返回结束

如果(refBurst.L_max = = 64) scsKSSB = mib.SubcarrierSpacingCommon;其他的scsKSSB = 15;结束k_SSB = mib.k_SSB;kFreqShift = e3 k_SSB * scsKSSB * 1;rxWaveform = rxWaveform。* exp(1 * 2 *π* kFreqShift *(0:长度(rxWaveform) 1)”/ rxSampleRate);%调整时间抵消坐标系原点frameOffset = hTimingOffsetToFrame (refBurst timingOffset、ssbIndex rxSampleRate);%如果帧偏移是负的,感兴趣的框架是不完整的。添加%前导零的波形一致wavefom的框架如果frameOffset < 0 rxWaveform = [0 (-frameOffset、大小(rxWaveform 2)); rxWaveform);其他的rxWaveform = rxWaveform (1 + frameOffset:最终,);结束%确定OFDM解调带宽使用CORESET0带宽msbIdx =地板(mib.PDCCHConfigSIB1/16);% 4 MSB PDCCHConfigSIB1 MIBscsCommon = mib.SubcarrierSpacingCommon;scsPair = [scsSSB scsCommon];[csetNRB ~, csetFreqOffset] = hCORESET0Resources (msbIdx、scsPair minChannelBW, k_SSB);%在RB,包括CORESET0最小带宽波形。c0 = csetFreqOffset + 10 * scsSSB / scsCommon;% CORESET从载波中心频率偏移nrb = 2 *马克斯(c0, csetNRB-c0);%最小数量的RB CORESET0如果rxSampleRate < nrb * 12 * scsCommon * 1 e3 disp ([“SIB1复苏不能继续。CORESET0资源以外的…接收到的波形的频率限制配置的采样率。]);返回;结束% OFDM解调接收波形与常见的副载波间距nSlot = 0;rxGrid = nrOFDMDemodulate (rxWaveform nrb、scsCommon nSlot,…“SampleRate”rxSampleRate,“CarrierFrequency”,fPhaseComp);%显示OFDM资源网格和突出最强党卫军块图;显示亮度图像(abs (rxGrid (:,: 1)));轴xy包含(OFDM符号的);ylabel (副载波的);numFrames =地板(长度(rxWaveform) / rxSampleRate / 10 e - 3);sfn = sprintf (“(%…% d)”mib。NFrame mib.NFrame + numFrames-1);标题([收到资源网格。系统帧数:sfn));highlightSSBlock (refBurst、ssbIndex nrb、scsPair kFreqShift)

msbIdx =地板(mib.PDCCHConfigSIB1/16);% 4 MSB PDCCHConfigSIB1 MIB指数表13 - 10的佳绩。[csetNRB, csetDuration csetOffset csetPattern] = hCORESET0Resources (msbIdx, scsPair, minChannelBW k_SSB);lsbIdx = mod (mib.PDCCHConfigSIB1, 16);[ssSlot, ssFirstSym isOccasion] = hPDCCH0MonitoringOccasions (lsbIdx、ssbIndex scsPair, csetPattern, csetDuration, mib.NFrame);% PDCCH监控场合可以在不同的党卫军块有关%不同的帧。如果没有监控场合在这个框架,必须有一个在接下来的一个百分比。slotsPerFrame = 10 * scsCommon / 15;如果~ isOccasion [ssSlot、ssFirstSym isOccasion] = hPDCCH0MonitoringOccasions (lsbIdx、ssbIndex scsPair, csetPattern, csetDuration, mib.NFrame + 1);ssSlot = ssSlot + slotsPerFrame;结束%,FR1问题监控PDCCH Type0-PDCCH CSS在两个连续的%插槽CORESET模式1如果csetPattern = = 1 monSlotsPerPeriod = 2;其他的monSlotsPerPeriod = 1;结束%计算基于副载波和OFDM符号的下标%槽包含PDCCH0相关检测党卫军块%和随后2-frame块csetSubcarriers = 12 * (nrb-20 * scsSSB / scsCommon) / 2 - csetOffset * 12 + (1: csetNRB * 12);numRxSym =大小(rxGrid, 2);symbolsPerSlot = 14;numRxSlots =装天花板(numRxSym / symbolsPerSlot);monSlots = ssSlot + (0: monSlotsPerPeriod-1) + (0:2 * slotsPerFrame: (numRxSlots-ssSlot-1));monSlots = monSlots (:)”;monSymbols = monSlots * symbolsPerSlot + (1: symbolsPerSlot) ';monSymbols = monSymbols (:)”;%去除监测符号超过波形的限制monSymbols (monSymbols > numRxSym) = [];%检查搜索空间是否超出了波形的结束如果isempty (monSymbols) disp (的搜索空间位置超出波形的结束。”);返回;结束%提取槽包含最强PDCCH从接收到的网格rxMonSlotGrid = rxGrid (csetSubcarriers、monSymbols:);

pdcch = hPDCCH0Configuration (ssbIndex mib, scsPair ncellid, minChannelBW);%配置承运人跨越BWP (CORESET0)c0Carrier = nrCarrierConfig;c0Carrier。SubcarrierSpacing = mib.SubcarrierSpacingCommon;c0Carrier。NStartGrid = pdcch.NStartBWP;c0Carrier。NSizeGrid = pdcch.NSizeBWP;c0Carrier。NSlot = pdcch.SearchSpace.SlotPeriodAndOffset (2);c0Carrier。NFrame = mib.NFrame; c0Carrier.NCellID = ncellid;

%指定DCI消息格式1 _0炒SI-RNTI (TS 38.212% 7.3.1.2.1节)dcispec1_0 = hSystemInformationDCIFieldsSize (pdcch.NSizeBWP);numDCIBits =总和(structfun (@ (x) x, dcispec1_0));disp (”,下行控制信息消息搜索PDCCH……”);siRNTI = 65535;% TS 38.321表7.1 - 1dciCRC = true;mSlot = 0;%循环遍历所有监测时段而(mSlot <长度(monSlots)) & & dciCRC c0Carrier ~ = 0。NSlot = monSlots (mSlot + 1);如果monSlotsPerPeriod = = 2如果国防部(mSlot, 2) pdcch.SearchSpace.SlotPeriodAndOffset (2) = monSlots (2);其他的pdcch.SearchSpace.SlotPeriodAndOffset (2) = monSlots (1);结束结束%得到PDCCH候选人根据TS 38.213 10.1节[pdcchInd, pdcchDmrsSym pdcchDmrsInd] = nrPDCCHSpace (c0Carrier pdcch);rxSlotGrid = rxMonSlotGrid (:, (1: symbolsPerSlot) + symbolsPerSlot * mSlot:);rxSlotGrid = rxSlotGrid / max (abs (rxSlotGrid (:)));%正常化收到大小%循环遍历所有支持聚合的水平金宝appaLev = 1;而(aLev < = 5) & & dciCRC ~ = 0%循环遍历所有候选人在党卫军每个聚合级别cIdx = 1;numCandidatesAL = pdcch.SearchSpace.NumCandidates (aLev);而(cIdx < = numCandidatesAL) & & dciCRC ~ = 0%信道估计使用PDCCH DM-RS[命令,据nVar pdcchHestInfo] = nrChannelEstimate (rxSlotGrid, pdcchDmrsInd {aLev} (:, cIdx) pdcchDmrsSym {aLev} (:, cIdx));%的均衡和解调PDCCH符号[pdcchRxSym, pdcchHest] = nrExtractResources (pdcchInd {aLev} (:, cIdx) rxSlotGrid,命令);据nVar pdcchEqSym = nrEqualizeMMSE (pdcchRxSym pdcchHest);dcicw = nrPDCCHDecode (pdcchEqSym pdcch.DMRSScramblingID pdcch.RNTI,据nVar);% DCI消息解码polarListLength = 8;[dcibits, dciCRC] = nrDCIDecode (dcicw、numDCIBits polarListLength, siRNTI);如果dciCRC = = 0 disp ([“解码PDCCH候选人#”num2str (cIdx)“在聚合级别”num2str (2 ^ (aLev-1))))结束cIdx = cIdx + 1;结束aLev = aLev + 1;结束mSlot = mSlot + 1;结束cIdx = cIdx-1;aLev = aLev-1;mSlot = mSlot-1;monSymbols = monSymbols (mSlot * symbolsPerSlot + (1: symbolsPerSlot));%计算均方根PDCCH维生素pdcchRef = nrPDCCH(双(dcicw < 0)、pdcch.DMRSScramblingID pdcch.RNTI);维生素与= comm.EVM;pdcchEVMrms =维生素(pdcchRef pdcchEqSym);%显示维生素与计算disp ([“PDCCH RMS维生素:”num2str (pdcchEVMrms' % 0.3 f ')“%”]);disp ([“PDCCH CRC:”num2str (dciCRC)]);%突出CORESET0 / SS对应于强烈的单边带bounding_box = @ (y, x, h, w)矩形(“位置”,(0.5 x + y - 0.5 w h),“EdgeColor”,“r”);bounding_box (csetSubcarriers (1) monSymbols (1) + ssFirstSym-1 csetNRB * 12, csetDuration);str = sprintf (“CORESET0 / SS”);文本(monSymbols (1) + ssFirstSym-7 csetSubcarriers(1) -20年,0,str,“字形大小”10“颜色”,' w ')如果dciCRC disp (“DCI解码失败了。”);返回结束%的阴谋收到PDCCH均衡后的星座图;情节(pdcchEqSym“o”);包含(“同步”);ylabel (“交”)标题(“均衡PDCCH星座”);m = max (abs([真实(pdcchEqSym (:));图像放大(pdcchEqSym (:))))) * 1.1;轴([- m m - m m]);%的OFDM网格显示包含最强PDCCH槽图;显示亮度图像(abs (rxSlotGrid (:,: 1)));轴xy包含(OFDM符号的);ylabel (副载波的);标题(“槽包含PDCCH最强”);%突出PDCCH在网格资源subsPdcch = nrPDCCHSpace (c0Carrier pdcch,“IndexStyle”,“潜艇”);subsPdcch =双(subsPdcch {aLev} (:,:, cIdx));x = min (subsPdcch (:, 2)) 1;X = max (subsPdcch (:, 2)) - X;y = min (subsPdcch (: 1));Y = max (subsPdcch (: 1)) - Y + 1;bounding_box (y, x, y, x);str = sprintf (“PDCCH \ n聚合级别:% d \ n候选人:% d '2 . ^ (aLev-1), cIdx-1);文本(x + x + 1, y + y / 2, 0, str,“字形大小”10“颜色”,' w ')

disp (“——PDSCH解调和DL-SCH解码——”)%建立DCI消息结构dci = hDCI (dcispec1_0 dcibits);%从细胞获得PDSCH配置ID、MIB和DCI[pdsch, K_0] = hSIB1PDSCHConfiguration (dci、pdcch.NSizeBWP mib.DMRSTypeAPosition, csetPattern);% CORESET模式2,gNodeB可以分配PDSCH在下一个槽,%表示的槽通过DCI抵消K_0暗示。更多的%的信息,请参阅表5.1.2.1.1-4 TS 38.214。c0Carrier。NSlot = c0Carrier.NSlot + K_0;symbolOffset = symbolsPerSlot * (mSlot + K_0);monSymbols = monSymbols + symbolOffset;rxSlotGrid = rxGrid (csetSubcarriers、monSymbols:);rxSlotGrid = rxSlotGrid / max (abs (rxSlotGrid (:)));%正常化收到大小如果K_0 > 0%显示槽的OFDM网格包含PDSCH有关图;显示亮度图像(abs (rxSlotGrid (:,: 1)));轴xy包含(OFDM符号的);ylabel (副载波的);标题(“槽包含PDSCH(槽抵消K_0 = 1)的);结束% PDSCH信道估计和均衡使用PDSCH DM-RSpdschDmrsIndices = nrPDSCHDMRSIndices (c0Carrier pdsch);pdschDmrsSymbols = nrPDSCHDMRS (c0Carrier pdsch);

μ= log2 (scsCommon / 15);bw = 2 ^μ* 100;搜索的带宽百分比(赫兹)freqStep = 2 ^μ;%频率(赫兹)步freqSearch = bw / 2: freqStep: bw / 2-freqStep;[~,fSearchIdx] = (abs (freqSearch));%从中心频率freqSearch = freqSearch (fSearchIdx);为fpc = fPhaseComp + 1 e3 * freqSearch% OFDM解调接收波形nSlot = 0;rxGrid = nrOFDMDemodulate (rxWaveform nrb、scsCommon nSlot,…“SampleRate”rxSampleRate,“CarrierFrequency”fpc);%从收到网格中提取监测槽rxSlotGrid = rxGrid (csetSubcarriers、monSymbols:);rxSlotGrid = rxSlotGrid / max (abs (rxSlotGrid (:)));%正常化收到大小% PDSCH符号的信道估计和均衡[命令,据nVar pdschHestInfo] = nrChannelEstimate (rxSlotGrid, pdschDmrsIndices pdschDmrsSymbols);[pdschIndices, pdschIndicesInfo] = nrPDSCHIndices (c0Carrier pdsch);[pdschRxSym, pdschHest] = nrExtractResources (pdschIndices rxSlotGrid,命令);据nVar pdschEqSym = nrEqualizeMMSE (pdschRxSym pdschHest);% PDSCH解调连续波= nrPDSCHDecode (c0Carrier pdsch pdschEqSym,据nVar);%初始化DL-SCH译码器decodeDLSCH = nrDLSCHDecoder;%的目标编码速率和传输块大小Xoh_PDSCH = 0;5.1.3.2 % TS 38.214部分tcr = hmc (dci.ModCoding);NREPerPRB = pdschIndicesInfo.NREPerPRB;tbsLength = nrTBS (pdsch.Modulation pdsch.NumLayers、长度(pdsch.PRBSet) NREPerPRB, tcr, Xoh_PDSCH);decodeDLSCH。TransportBlockLength = tbsLength;decodeDLSCH。TargetCodeRate =识别;%解码DL-SCH[sib1bits, sib1CRC] = decodeDLSCH (cw、pdsch.Modulation pdsch.NumLayers, dci.RV);如果sib1CRC = = 0打破;结束结束%突出PDSCH在网格资源subsPdsch =双(nrPDSCHIndices (c0Carrier pdsch,“IndexStyle”,“下标”));x = min (subsPdsch (:, 2)) 1;X = max (subsPdsch (:, 2)) - X;y = min (subsPdsch (: 1));Y = max (subsPdsch (: 1)) - Y + 1;bounding_box (y, x, y, x);str = sprintf (“PDSCH (SIB1) \ n调制:% s \ n代码率:% .2f '、pdsch.Modulation tcr);文本(x + 4, y + y + 60 0, str,“字形大小”10“颜色”,' w ')%的阴谋收到PDSCH均衡后的星座图;情节(pdschEqSym“o”);包含(“同步”);ylabel (“交”)标题(“均衡PDSCH星座”);m = max (abs([真实(pdschEqSym (:));图像放大(pdschEqSym (:))))) * 1.1;轴([- m m - m m]);%计算均方根PDSCH维生素,包括PDSCH正常化的象征% DM-RS和PDSCH力量之间的抵消pdschRef = nrPDSCH (c0Carrier、pdsch、双(cw {1} < 0));维生素与= comm.EVM;pdschEVMrms =维生素(pdschRef pdschEqSym /√(var (pdschEqSym)));%显示PDSCH维生素和DL-SCH CRCdisp ([“PDSCH RMS维生素:”num2str (pdschEVMrms' % 0.3 f ')“%”]);disp ([“PDSCH CRC:”num2str (sib1CRC)]);如果sib1CRC = = 0 disp (“SIB1解码成功了。”);其他的disp (“SIB1解码失败了。”);结束

函数现在= isCORESET0Present (ssbBlockPattern kSSB)开关ssbBlockPattern情况下{的情况下,“案例B”,“案例C”}% FR1kssb_max = 23;情况下{“D”,“E”}% FR2kssb_max = 11;结束如果(kSSB < = kssb_max) = true;其他的= false;结束结束函数dci = hDCI (dcispec dcibits)% DCI消息解析成一个结构DCI的消息字段fieldsizes = structfun (@ (x) x, dcispec);fieldbits2dec = @ (x, y) bin2dec (char (x (y (1): y (2)) +' 0 '));fieldbitranges = [[0;cumsum (fieldsizes (1: end-1))) + 1 cumsum (fieldsizes)];fieldbitranges = num2cell (fieldbitranges 2);值= cellfun (@ (x) fieldbits2dec (dcibits。”, fieldbitranges x)“UniformOutput”、假);dci = cell2struct(值,字段名(dcispec));结束函数timingOffset = hTimingOffsetToFrame(破裂,抵消,ssbIdx rxSampleRate)%符号长度测量的FFT样本,规模的象征%的长度占接收机的采样率。非整数延迟%是近似的过程。scs = hSSBurstSubcarrierSpacing (burst.BlockPattern);scs ofdmInfo = nrOFDMInfo (1,“SampleRate”,rxSampleRate);% SCS-SR FFT最小大小srRatio = rxSampleRate / (scs * 1 e3 * ofdmInfo.Nfft);symbolLengths = ofdmInfo.SymbolLengths * srRatio;%调整时间抵消党卫军块的开始。这个步骤删除%的额外补偿引入参考网格在PSS搜索,%含有PSS在第二个OFDM符号。抵消=抵消+ symbolLengths (1);%时间偏移调整,以便收到网格开始%帧头即调整时间偏移之间的区别单边带%的第一象征作用最强,帧的开始burstStartSymbols = hSSBurstStartSymbols (burst.BlockPattern burst.L_max);%在单边带数字命理学开始符号ssbFirstSym = burstStartSymbols (ssbIdx + 1);%基于%调整整个子帧symbolsPerSubframe =长度(symbolLengths);subframeOffset =地板(ssbFirstSym / symbolsPerSubframe);samplesPerSubframe =总和(symbolLengths);timingOffset =抵消- (subframeOffset * samplesPerSubframe);%调整剩余的OFDM符号和一轮抵消如果不是整数symbolOffset =国防部(ssbFirstSym symbolsPerSubframe);timingOffset =圆(timingOffset总和(symbolLengths (1: symbolOffset)));结束函数highlightSSBlock (refBurst ssbIndex commonNRB, scs, kFreqShift) scsSSB = scs (1);scsCommon = scs (2);%确定频率的单边带常见的数字命理学的起源bounding_box = @ (y, x, h, w)矩形(“位置”,(0.5 x + y - 0.5 w h),“EdgeColor”,“r”);scsRatio = scsSSB / scsCommon;ssbFreqOrig = 12 * (commonNRB-20 * scsRatio) / 2 + 1 + kFreqShift / (e3 scsCommon * 1);%确定时间的单边带常见的数字命理学的起源ssbStartSymbols = hSSBurstStartSymbols (refBurst.BlockPattern refBurst.L_max);ssbHeadSymbol = ssbStartSymbols (ssbIndex + 1) / scsRatio;地板ssbTailSymbol = ((ssbStartSymbols (ssbIndex + 1) + 4) / scsRatio) 1;bounding_box (ssbFreqOrig ssbHeadSymbol 240 * scsRatio ssbTailSymbol-ssbHeadSymbol + 1);str = sprintf (“最强\ n单边带:% d ',ssbIndex);文本(str ssbHeadSymbol ssbFreqOrig-20 0,“字形大小”10“颜色”,' w ')结束