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5GNR学习理解系列——利用matlab工具生成5GNR信源

5GNR学习理解系列——利⽤matlab⼯具⽣成5GNR信源

提⽰：⽂章写完后，⽬录可以⾃动⽣成，如何⽣成可参考右边的帮助⽂档

5G NR学习理解系列——利⽤matlab⼯具⽣成5G NR信源

前⾔

既然发现了4G LTE toolbox的matlab⼯具箱，那5G NR是否也有类似的⼯具箱呢，⼀查，果然也有，不过matlab版本要2021b才有图形化app⽣成NR信源。没办法，⽹上搜集资源，安装上。

NR⼯具箱的使⽤

暂时没有到怎么输⼊指令直接打开，只能通过matlab的app菜单，到

这个按钮，打开，选择

⽤法很简洁，都不需要⽤⽂字来描述了，看图就知道怎么操作了，跟4G LTE的操作差不多

⾥⾯有我们常⽤的⼀些测试模式，例如TM11、TM31之类的。⽽且可以设定CELL ID，⽽我们做同步，解出CELLID，也就需要这些信息就⾏了。还多了⼀个可以设置采样率的选项，这点很好哦

不过似乎没看到哪⾥可以配置时隙配⽐的，不知道是没有这个接⼝配置，还是暂时我没发现。这个以后要是到了再来补充了。

直接使⽤代码

但每次通过这样使⽤tool界⾯还是有点⿇烦，需要⼿动⽣成，导出数据(mat格式)，然后在把mat数据导⼊到需要仿真的程序中。

newData1 =load('-mat', 'TEST.mat');

lte_data = newData1.waveStruct.waveform;

lte_data = lte_data.';（这个转置，看实际是否需要）

可惜，暂时还没到类似于4G LTE的lteTestModel函数来替代上述图形交互过程。不过，在上⾯图形化界⾯导出按钮中，可以选择

可以得到以下代码

% Generated by MATLAB(R)9.11(R2021b)and 5G Toolbox 2.3(R2021b).

% Generated on:22-Feb-202220:09:27

%% Generating NR Test Models waveform

% NR Test Models configuration沙滩棒球

cfgDLTM = nrDLCarrierConfig;

cfgDLTM.Label = 'NR-FR1-TM3.1a';

cfgDLTM.FrequencyRange = 'FR1';

cfgDLTM.ChannelBandwidth =100;

cfgDLTM.NCellID =1;

cfgDLTM.NumSubframes =20;

cfgDLTM.WindowingPercent =0;

cfgDLTM.SampleRate =122880000;

cfgDLTM.CarrierFrequency =0;

%% SCS specific carriers

scscarrier = nrSCSCarrierConfig;

scscarrier.SubcarrierSpacing =30;

scscarrier.NSizeGrid =273;

scscarrier.NStartGrid =0;

cfgDLTM.SCSCarriers ={scscarrier};

%% Bandwidth Parts

bwp = nrWavegenBWPConfig;

bwp.BandwidthPartID =1;

bwp.Label = 'BWP1';

bwp.SubcarrierSpacing =30;

bwp.CyclicPrefix = 'normal';

bwp.NSizeBWP =273;

bwp.NStartBWP =0;

cfgDLTM.BandwidthParts ={bwp};

%% Synchronization Signals Burst

ssburst = nrWavegenSSBurstConfig;

ssburst.BlockPattern = 'Case B';

ssburst.TransmittedBlocks =[1000];

ssburst.Period =10;

ssburst.NCRBSSB =[];

ssburst.KSSB =0;

ssburst.DataSource = 'MIB';

ssburst.DMRSTypeAPosition =2;

ssburst.CellBarred =false;

ssburst.IntraFreqReselection =false;

ssburst.PDCCHConfigSIB1 =0;

ssburst.SubcarrierSpacingCommon =30;

ssburst.Enable =false;

ssburst.Power =0;

cfgDLTM.SSBurst = ssburst;

%% CORESET and Search Space Configuration

coreset = nrCORESETConfig;

coreset.CORESETID =1;

coreset.Label = 'CORESET1';

coreset.FrequencyResources =1;

coreset.Duration =2;

coreset.CCEREGMapping = 'noninterleaved';

coreset.REGBundleSize =2;

coreset.InterleaverSize =2;

coreset.ShiftIndex =0;

cfgDLTM.CORESET ={coreset};

% Search Spaces

searchspace = nrSearchSpaceConfig;

searchspace.SearchSpaceID =1;

searchspace.Label = 'SearchSpace1';

searchspace.CORESETID =1;

searchspace.SearchSpaceType = 'common';

searchspace.StartSymbolWithinSlot =0;

searchspace.SlotPeriodAndOffset =[10];

searchspace.Duration =1;

searchspace.NumCandidates =[88000];

cfgDLTM.SearchSpaces ={searchspace};

%% PDCCH Instances Configuration

pdcch = nrWavegenPDCCHConfig;

pdcch.Enable =true;

pdcch.Label = 'PDCCH1';

pdcch.Power =0;

pdcch.BandwidthPartID =1;

pdcch.SearchSpaceID =1;

pdcch.AggregationLevel =1;

pdcch.AllocatedCandidate =1;

pdcch.SlotAllocation =0:7;

pdcch.Period =10;

pdcch.Coding =false;

pdcch.DataBlockSize =20;

pdcch.DataSource = 'PN23';

pdcch.RNTI =0;抗氧化剂386

pdcch.DMRSScramblingID =1;

pdcch.DMRSPower =0;毛辊清洗机

cfgDLTM.PDCCH ={pdcch};

%% PDSCH Instances Configuration

% PDSCH 1

pdsch1 = nrWavegenPDSCHConfig;

pdsch1.Enable =true;

pdsch1.Label = 'Partial band PDSCH sequence with 256QAM modulation scheme (target, RNTI =0)(Full downlink slots)'; pdsch1.Power =0;

pdsch1.BandwidthPartID =1;

pdsch1.Modulation = '256QAM';

pdsch1.NumLayers =1;

pdsch1.MappingType ='A';

pdsch1.ReservedCORESET =[];

pdsch1.SymbolAllocation =[014];

pdsch1.SlotAllocation =0:6;

pdsch1.Period =10;

pdsch1.PRBSet =3:272;

pdsch1.VRBToPRBInterleaving =0;

pdsch1.VRBBundleSize =2;

pdsch1.NID =[];

pdsch1.RNTI =0;

pdsch1.Coding =false;

pdsch1.TargetCodeRate =0.4785;

pdsch1.TBScaling =1;

pdsch1.XOverhead =0;

pdsch1.RVSequence =0;

pdsch1.DataSource = 'PN23';

pdsch1.DMRSPower =0;

pdsch1.EnablePTRS =false;

pdsch1.PTRSPower =0;

% PDSCH Reserved PRB

pdsch1ReservedPRB = nrPDSCHReservedConfig;

pdsch1ReservedPRB.PRBSet =0:2;

pdsch1ReservedPRB.SymbolSet =[01];

pdsch1ReservedPRB.Period =1;

pdsch1.ReservedPRB ={pdsch1ReservedPRB};

% PDSCH DM-RS

阻焊油墨

pdsch1DMRS = nrPDSCHDMRSConfig;

pdsch1DMRS.DMRSConfigurationType =1;

pdsch1DMRS.DMRSReferencePoint = 'CRB0';

pdsch1DMRS.DMRSTypeAPosition =2;

pdsch1DMRS.DMRSAdditionalPosition =1;

pdsch1DMRS.DMRSLength =1;

pdsch1DMRS.CustomSymbolSet =[];

pdsch1DMRS.DMRSPortSet =[];

pdsch1DMRS.NIDNSCID =[];

pdsch1DMRS.NSCID =0;

pdsch1DMRS.NumCDMGroupsWithoutData =1;

pdsch1.DMRS = pdsch1DMRS;

% PDSCH PT-RS

pdsch1PTRS = nrPDSCHPTRSConfig;

pdsch1PTRS.TimeDensity =4;

pdsch1PTRS.FrequencyDensity =2;

pdsch1PTRS.REOffset = '00';

pdsch1PTRS.PTRSPortSet =[];

pdsch1.PTRS = pdsch1PTRS;

% PDSCH 2

pdsch2 = nrWavegenPDSCHConfig;

pdsch2.Enable =true;

pdsch2.Label = 'Partial band PDSCH sequence with 256QAM modulation scheme (target, RNTI =2)(Full downlink slots)'; pdsch2.Power =0;

pdsch2.BandwidthPartID =1;

pdsch2.Modulation = '256QAM';

pdsch2.NumLayers =1;

pdsch2.MappingType ='A';

pdsch2.ReservedCORESET =[];

pdsch2.SymbolAllocation =[212];

pdsch2.SlotAllocation =0:6;

pdsch2.Period =10;

pdsch2.PRBSet =0:2;

pdsch2.VRBToPRBInterleaving =0;

pdsch2.VRBBundleSize =2;

pdsch2.NID =[];

pdsch2.RNTI =2;

pdsch2.Coding =false;

pdsch2.TargetCodeRate =0.4785;

pdsch2.TBScaling =1;

pdsch2.XOverhead =0;

李逢鹏pdsch2.RVSequence =0;

pdsch2.RVSequence =0;

pdsch2.DataSource = 'PN23';

pdsch2.DMRSPower =0;

pdsch2.EnablePTRS =false;

pdsch2.PTRSPower =0;

pdschreserved = nrPDSCHReservedConfig;

pdschreserved.PRBSet =0:2;

pdschreserved.SymbolSet =[01];

pdschreserved.Period =1;

pdsch2.ReservedPRB ={pdschreserved};

pdschdmrs = nrPDSCHDMRSConfig;

磷酸氧钛钾

pdschdmrs.DMRSConfigurationType =1;

pdschdmrs.DMRSReferencePoint = 'CRB0';

pdschdmrs.DMRSTypeAPosition =2;

pdschdmrs.DMRSAdditionalPosition =1;

pdschdmrs.DMRSLength =1;

pdschdmrs.CustomSymbolSet =[];

pdschdmrs.DMRSPortSet =[];

pdschdmrs.NIDNSCID =[];

pdschdmrs.NSCID =0;

pdschdmrs.NumCDMGroupsWithoutData =1;

pdsch2.DMRS = pdschdmrs;

pdschptrs = nrPDSCHPTRSConfig;

pdschptrs.TimeDensity =4;

pdschptrs.FrequencyDensity =2;

pdschptrs.REOffset = '00';

pdschptrs.PTRSPortSet =[];

pdsch2.PTRS = pdschptrs;

% PDSCH 3

pdsch3 = nrWavegenPDSCHConfig;

pdsch3.Enable =true;

pdsch3.Label = 'Partial band PDSCH sequence with 256QAM modulation scheme (target, RNTI =0)(Partial downlink slots)'; pdsch3.Power =0;

pdsch3.BandwidthPartID =1;

pdsch3.Modulation = '256QAM';

pdsch3.NumLayers =1;

pdsch3.MappingType ='A';

pdsch3.ReservedCORESET =[];

pdsch3.SymbolAllocation =[06];

pdsch3.SlotAllocation =7;

pdsch3.Period =10;

pdsch3.PRBSet =3:272;

pdsch3.VRBToPRBInterleaving =0;

pdsch3.VRBBundleSize =2;

pdsch3.NID =[];

pdsch3.RNTI =0;

pdsch3.Coding =false;

pdsch3.TargetCodeRate =0.4785;

pdsch3.TBScaling =1;

pdsch3.XOverhead =0;

pdsch3.RVSequence =0;

pdsch3.DataSource = 'PN23';

pdsch3.DMRSPower =0;

pdsch3.EnablePTRS =false;

pdsch3.PTRSPower =0;

pdschreserved = nrPDSCHReservedConfig;

pdschreserved.PRBSet =0:2;

pdschreserved.SymbolSet =[01];

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