Keysight M9383B Measurement Manual
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Keysight M9383B Measurement Manual

Microwave signal generator
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Keysight M9383B VXG-m
PXIe Microwave Signal Generator
and
Keysight M9384B VXG
Microwave Signal Generator
Measurement
Guide

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Summary of Contents for Keysight M9383B

  • Page 1 Keysight M9383B VXG-m PXIe Microwave Signal Generator and Keysight M9384B VXG Microwave Signal Generator        Measurement Guide...
  • Page 2 DOCUMENT OR ANY INFORMATION indicated conditions are fully reproduce, release, perform, CONTAINED HEREIN. SHOULD understood and met. display, or disclose commercial KEYSIGHT AND THE USER HAVE A computer software or SEPARATE WRITTEN AGREEMENT commercial computer software WITH WARRANTY TERMS documentation. No additional...

  • Page 3: Table Of Contents

    Cables and Connections for the M9383B ........
  • Page 4 M9383B/84B Measurement Guide...

  • Page 5: Basic Measurements

    Keysight M9383B/84B Signal Generator Measurement Guide Basic Measurements — “Configuring the Equipment Setup” on page 7 — “Cables and Connections for the M9383B” on page 7 — “Equipment Setup” on page 7 — “Setting Up Triggers on the N9040B” on page 9 —...

  • Page 6: Overview

    Basic Measurements Overview Overview The M9383B/M9384B signal generators provides frequency coverage from  1 MHz to 44 GHz, with up to 2 GHz RF modulation bandwidth with an internal baseband generator, and over 2 GHz RF modulation bandwidth with external I/Q inputs.

  • Page 7: Configuring The Equipment Setup

    Trig 3 In is for an N9040B with Option H1G (1 GHz Bandwidth). For N9040B with Bandwidth of less than 510 MHz, use Trig 1 In. — M9383B rear panel 10 MHz Ref Out to N9040B rear panel Ext Ref In Equipment Setup...

  • Page 8: Cables And Connections For The M9384B

    Trig 3 In is for an N9040B with Option H1G (1 GHz Bandwidth). For N9040B with Bandwidth of less than 510 MHz, use Trig 1 In. — M9384B rear panel 10 MHz Ref Out to N9040B rear panel Ext Ref In Equipment Setup M9383B/84B Measurement Guide...

  • Page 9: Setting Up Triggers On The N9040B

    Screen tab (at the top of the display) to open the Mode/Measurement/View Selector window. 2. Select Mode Preset to set Spectrum Analyzer mode to a known state. 3. From the dropdown on the top right, select Trigger and set Trigger Source to Free Run. M9383B/84B Measurement Guide...

  • Page 10: Making Measurements

    These values are coupled to CW Frequency and Total Power (RMS) in the corresponding RF Output Block. 3. Set RF Out to On by selecting the RF Out switch. This enables the RF Out for the indicated channels, in this case Channel 1 if using a 2-channel VXG. M9383B/84B Measurement Guide...
  • Page 11 1. Select Frequency and set Center Frequency to 1 GHz and Span to  1 MHz. 2. Select Peak Search. Observe the accuracy of the amplitude and frequency of the signal. On the VXG: 1. Set Output 1 Power to –90 dBm. 2. Ensure that RF Out is On. M9383B/84B Measurement Guide...
  • Page 12 1. Select Frequency and set Center Frequency to 44 GHz. 2. Select Amplitude and set Ref Level to 0 dBm and Scale/Div to  10 dB. 3. Select BW > Video BW and set to Auto. 4. Select Peak Search. M9383B/84B Measurement Guide...
  • Page 13 Basic Measurements Making Measurements Observe the frequency and amplitude accuracy at high frequency levels. M9383B/84B Measurement Guide...
  • Page 14 On the VXG: RF1:FREQuency:CW 1GHZ RF1:POWer:AMPLitude -90dBm RF1:OUTPut:STATe ON On the N9040B: DISPlay:WINDow1:TRACe:Y:RLEVel -70 DISPlay:WINDow1:TRACe:Y:PDIVision 5 BWIDth:VIDeo 300Hz CALCulate:MARKer1:MAXimum On the VXG: RF1:FREQuency:CW 44GHZ RF1:POWer:AMPLitude 0dBm On the N9040B: FREQuency:CENTer 44GHZ DISPlay:WINDow1:TRACe:Y:RLEVel 0 DISPlay:WINDow1:TRACe:Y:PDIVision 10 BANDwidth:VIDeo:AUTO ON CALCulate:MARKer1:MAXimum M9383B/84B Measurement Guide...

  • Page 15: Setting Up Amplitude Modulation

    4. From the Vector Modulation Signal Mode dropdown, select Analog Modulation. 5. In the Analog Modulation Signal Setup: a. Set Modulation Type to AM. b. Set Waveform to Sine. c. Set Rate to 100 kHz. d. Set Depth to 50%. e. Select Enable Vector Modulation Signal. M9383B/84B Measurement Guide...
  • Page 16 6. Close the Vector Modulation Signal Setup. 7. Ensure that RF Out is on. On the N9040B: 1. Select Frequency and set Center Frequency to 20 GHz and Span to  500 kHz. 2. Select BW and set Res BW to 100 Hz. M9383B/84B Measurement Guide...
  • Page 17 Peak Search > Settings, then set Mark Mode to Delta. 4. Select Peak Search > Next Peak Right until the marker is at the next highest peak. The Delta Marker should be approximately –12 dB for 50% AM. M9383B/84B Measurement Guide...
  • Page 18 For multi-channel instruments, set RF Out (all) to On. RFALl:OUTPut ON On the N9040B: FREQuency:CENTer 20GHZ FREQuency:SPAN 500KHZ ACPower:BANDwidth 100 Hz CALCulate:MARKer1:MODE DELTa CALCulate:MARKer1:MAXimum:RIGHt Repeat the above command until the marker is at the next highest peak. To retrieve the delta marker: CALCulate:MARKer1:Y? M9383B/84B Measurement Guide...

  • Page 19: Setting Up Frequency Modulation

    3. Select the Vector Modulation Signal Mode dropdown and select Analog Modulation. 4. In the Analog Modulation Signal Setup: a. Set Modulation Type to FM. b. Set Waveform to Sine. c. Set Rate to 400 Hz. d. Set Deviation to 10 MHz. M9383B/84B Measurement Guide...
  • Page 20 6. Close the Vector Modulation Signal Setup. 7. Ensure that RF Out is on. On the N9040B: 1. Select Frequency and set Center Frequency to 20 GHz and Span to 50 MHz. 2. Select BW and set Res BW to 240 Hz. M9383B/84B Measurement Guide...
  • Page 21 RF1:FREQuency:CW 20GHZ RF1:POWer:AMPLitude 0dBm SIGNal:MODE:AMODulation SIGNal1:AMODulation:TYPE FM SIGNal1:FM:SHAPe SINE SIGNal1:FM:FREQuency 400KHZ SIGNal1:FM 10 SIGNal1 ON RF1:OUTPut:STATe ON For multi-channel instruments, set RF Out (all) to On. RFALl:OUTPut ON On the N9040B: FREQuency:CENTer 20GHZ FREQuency:SPAN 50MHZ ACPower:BANDwidth 240 Hz M9383B/84B Measurement Guide...

  • Page 22: Setting Up Phase Modulation

    Modulation. 3. In the Analog Modulation Signal Setup: a. Set Modulation Type to PM. b. Set Waveform to Sine. c. Set Rate to 10 kHz. d. Set Deviation to 1 rad. 4. Select Enable Vector Modulation Signal. M9383B/84B Measurement Guide...
  • Page 23 On the N9040B: 1. From the Menu Panel (on the top right of the display), select Mode/Meas > Analog Demod mode > PM Measurement > Quad View. 2. Select Frequency and set Center Frequency to 20 GHz. M9383B/84B Measurement Guide...
  • Page 24 SYSTem:PRESet RF1:FREQuency:CW 20GHZ RF1:POWer:AMPLitude 0dBm SIGNal:MODE:AMODulation SIGNal1:AMODulation:TYPE PM SIGNal1:PM:SHAPe SINE SIGNal1:PM:FREQuency 10KHZ SIGNal1:PM 1 SIGNal1 ON RF1:OUTPut:STATe ON For multi-channel instruments, set RF Out (all) to On. RFALl:OUTPut ON On the N9040B: INSTrument:CONFigure:ADEMOD:PM DISPlay:VIEW:ADVanced:SELect “QUAD” FREQuency:CENTer 20GHZ M9383B/84B Measurement Guide...

  • Page 25: Setting Up An Multitone Signal

    3. Select the Signal block to open. 4. In the Output 1 Vector Modulation Signal Setup: a. Set Vector Modulation Signal Mode to Multi-tone. b. Set Tones to 15. c. Set Tone Spacing to 500 kHz. 5. Select Enable Vector Modulation Signal. M9383B/84B Measurement Guide...
  • Page 26 If accessing the instrument via a Remote Desktop connection, select the Screen tab (at the top of the display) to open the Mode/Measurement/View Selector window. 2. Select Frequency and set Center Frequency to 20 GHz and Span to  10 MHz. Observe the 15 tones. M9383B/84B Measurement Guide...
  • Page 27 SIGNal1:MTONe:ARB:NTONe 15 SIGNal1:MTONe:ARB:FSP 500KHZ SIGNal1 ON RF1:OUTPut:STATe ON For multi-channel instruments, set RF Out (all) to On. RFALl:OUTPut ON On the N9040B: Change to Spectrum Analyzer mode, Swept SA measurement. INSTrument:CONFigure:SA:SAN DISPlay:VIEW:ADVanced:SELect “NORMAL” FREQuency:CENTer 20GHZ FREQuency:SPAN 10MHZ M9383B/84B Measurement Guide...

  • Page 28: Setting Up Waveform File Vector Modulation

    2. Set Frequency to 20 GHz and Amplitude to 0 dBm. 3. Select the Signal block to open. 4. In the Vector Modulation Signal Setup: a. Select the Markers block and set Sync to Marker 2 and then select Back to close the Markers Setup. M9383B/84B Measurement Guide...
  • Page 29 Set Vector Modulation Signal Mode to Waveform File. c. Use File Select to navigate to:  D:\Users\Instrument\Documents\Keysight\PathWave \SignalGenerator\Examples d. Set the file extension to All Files (*.*), highlight GSM_1C_Burst.WFM, then Select. e. Select Enable Vector Modulation Signal. f. Ensure that RF Out is on. M9383B/84B Measurement Guide...
  • Page 30 3. Select Trace and set Trace Type to Max Hold. 4. Observe the GSM signal. On the VXG: 1. Select the Signal block to open the Vector Modulation Signal Setup. 2. Use File Select to navigate to: D:\Users\Instrument\Documents\Keysight\PathWave \SignalGenerator\Examples M9383B/84B Measurement Guide...
  • Page 31 4. Ensure that Enable Vector Modulation Signal is selected. 5. Ensure that RF Out is on. On the N9040B: 1. Select BW and set Res BW to 620 Hz. 2. Select Frequency and set Span to 30 MHz. 3. Observe the LTE signal. M9383B/84B Measurement Guide...
  • Page 32 For multi-channel instruments, set RF Out (all) to On. RFALl:OUTPut ON On the N9040B: FREQuency:CENTer 20GHZ FREQuency:SPAN 900KHZ ACPower:BANDwidth 470 Hz DISPlay:TXPower:WINDow1:TRACe:MAXHold ON On the VXG: SIGN1:WAV " D:\Users\Instrument\Documents\Demo Waveforms\WDCMA_TM1_64DPCH_4C.WFM" SIGNal1 ON RF1:OUTPut:STATe ON On the N9040B: ACPower:BANDwidth 620 Hz FREQuency:SPAN 30MHZ M9383B/84B Measurement Guide...

  • Page 33: Using Corrections/De-Embedding

    When using a spectrum analyzer, it must be locked to the VXG Frequency Reference. This is important because the power measurement can be inaccurate due to a narrow resolution bandwidth (RBW) used in the spectrum analyzer. Supported Keysight X-Series signal analyzers are: — N9000A/B CXA — N9010A/B EXA —...
  • Page 34 Basic Measurements Making Measurements 5. Select Add from Measurement to open the Measure Corrections Block Wizard. 6. Connect the power sensor (in this case, the X-Series signal analyzer) as shown in the diagram below, and then select Next. M9383B/84B Measurement Guide...
  • Page 35 7. Select Configure Sensor > Power Meter dropdown > Spectrum Analyzer. 8. Set the Start and Stop Freq and the Num Steps. For this example Start Freq 26 GHz, Stop Freq 30 GHz, and Num Steps to 20. M9383B/84B Measurement Guide...
  • Page 36 During the measurement, the VXG outputs a CW between the Start and Stop Frequencies for the specified number of steps and output power. The measurement results are saved to a csv file using an automatically generated file name. M9383B/84B Measurement Guide...
  • Page 37 Basic Measurements Making Measurements 12.Select Finish. The output csv file is set to Block A. Block A is dedicated for User Correction. The image below shows how blocks are assigned in the User Correction and Fixture block. M9383B/84B Measurement Guide...

  • Page 38: Using A Power Meter To Make The Corrections Measurement

    A power meter can also be used at the power measurement device. The following USB power sensors are supported: — U8487A-CFG007 — U8485A-CFG006 — U2000A — U2001A — U2002A — U2004A — U2000B — U2001B — U2000H — U2001H — U2002H M9383B/84B Measurement Guide...
  • Page 39 1. In the Output area, set the Power to the highest power level used in your measurement. 2. Select the RF Output block > Corrections/De-embedding block to open the Correction Setup. 3. Select Add from Measurement to open the Measure Corrections Block Wizard. M9383B/84B Measurement Guide...
  • Page 40 Basic Measurements Making Measurements 4. Connect the power sensor as shown in the diagram below then select Next. 5. Select Configure Sensor > Power Meter dropdown > Power Meter. M9383B/84B Measurement Guide...
  • Page 41 8. Select the Connection Type to USB, and then specify the Device and VISA Address. 9. Select Test Connection to verify connectivity, and then select OK then Next to continue. You can also calibrate and zero out the power sensor before measuring corrections. M9383B/84B Measurement Guide...
  • Page 42 Stop Frequencies for the specified number of steps and output power. The measurement results are saved to a csv file using an automatically generated file name. 11.Select Finish. The output csv file is set to Block A. M9383B/84B Measurement Guide...

  • Page 43: Adding Fixture Blocks Using S2P Files

    The first line in the figure below (# GHz DB R 50) designates: — (GHz) designates the frequency in Hz, kHz, MHz, or GHz M9383B/84B Measurement Guide...
  • Page 44 2. In theVXG Output area, set the Frequency to 10 GHz and Power to  –20 dBm. 3. Select the Signal Block and set: — Vector Modulation Signal Mode to Multitone — Tones to 21 — Tone Spacing to 100 MHz — Select Enable Vector Modulation Signal M9383B/84B Measurement Guide...
  • Page 45 — Set the Center to 10 GHz — Span to 3 GHz 6. On the VXG, select the RF Output block > Corrections De-embedding. 7. In the Corrections Setup dialog, select Add from File. 8. Navigate and Select the s2p file. M9383B/84B Measurement Guide...
  • Page 46 An s2p example file is included on the VXG. Go to   D:\Users\Instrument\Documents\Keysight\PathWave \SignalGenerator\Examples\simpleAt10GHzInDB.s2p Notice that Block B is added in the Correction Setup diagram. 9. Select Block B Properties Enable and Corrections On, then view the results on the X-Series spectrum analyzer. M9383B/84B Measurement Guide...
  • Page 47 Block C Properties to Embed (from De-embed). View the results on the X-Series spectrum analyzer. Notice that the corrections are no longer shown. This is because the de-embedded corrections applied in Block B cancel the embedded corrections applied in Block C. M9383B/84B Measurement Guide...
  • Page 48 Basic Measurements Making Measurements M9383B/84B Measurement Guide...
  • Page 49 Set the power level to the highest level used in your measurement. RF1:POWer:AMPLitude 5dBm CORRection:PMDevice SANalyzer CORRection:FLATness:STEP:STARt 26GHZ CORRection:FLATness:STEP:STOP 30GHZ CORRection:FLATness:STEP:POINts 20 CORRection:SANalyzer:COMMunicate:TYPE SOCKets Set the LAN address and protocol parameters for your spectrum analyzer. CORRection:SANalyzer:COMMunicate:LAN:IP "192.168.1.5" CORRection:SANalyzer:COMMunicate:LAN:PORT 5025 CORRection:FLATness:CALibrate CORRection ON M9383B/84B Measurement Guide...
  • Page 50 Using a power meter to make the corrections measurement. On the VXG: SYSTem:PRESet RF1:POWer:AMPLitude 5dBm CORRection:PMDevice PMETer CORRection:FLATness:STEP:STARt 26GHZ CORRection:FLATness:STEP:STOP 30GHZ CORRection:FLATness:STEP:POINts 20 CORRection:SANalyzer:COMMunicate:TYPE USB Use query CORRection:PMETer:COMMunicate:USB:LIST? for a list of all connected USB devices. CORRection:PMETer:COMMunicate:USB:DEVice “instr0” [Optional] CORRection:PMETer:CALibrate [Optional] CORRection:PMETer:ZERO CORRection:FLATness:CALibrate CORRection ON M9383B/84B Measurement Guide...
  • Page 51 Set the path to the s2p data as block 2 (you can use 1 through 4). CORRection:BLOCk2:FILE “FixtureChannel2” CORRection:BLOCk2 ON Add block C with the same file. CORRection:BLOCk3:FILE “FixtureChannel2” Change Block C to Embed. CORRection:BLOCk3:APPLy EMBedding CORRection:BLOCk3 ON M9383B/84B Measurement Guide...
  • Page 52 Basic Measurements Making Measurements M9383B/84B Measurement Guide...
  • Page 53 Keysight M9383B/84B Signal Generator Measurement Guide 5G New Radio (NR) Measurements using X-Apps This section includes the following topics: — “5G Waveform, EVM, and ACP Analysis Using X-Applications” on page 54 — “Setting Up Triggers on the N9040B using 5G NR Mode” on page 54 —...

  • Page 54: 5G Waveform, Evm, And Acp Analysis Using X-Applications

    3. Select Mode/Meas > 5G NR Mode > Modulation Analysis Measurement. 4. From the Menu Panel (on the top right of the display), select Trigger and set Select Trigger Source to External 1 and Trigger Level to 1 V. M9383B/84B Measurement Guide...
  • Page 55 5G New Radio (NR) Measurements using X-Apps 5G Waveform, EVM, and ACP Analysis Using X-Applications Using the equivalent SCPI programming example On the N9040B: INSTrument:CONFigure:NR SYSTem:PRESet Change the current window to 5G NR Modulation Analysis Measurement Mode INSTrument:CONFigure:NR5G:EVM TRIGger:EVM:SOURce EXTernal1 TRIGger:EXTernal1:LEVel 1V M9383B/84B Measurement Guide...

  • Page 56: Setting Up A 1 Cc 28 Ghz Evm Measurement

    5 dBm. 3. Select Signal block to open. 4. Set Vector Modulation Signal Mode to Waveform File. 5. Select the Markers block and set Sync to Marker 2 and then select Back to close the Markers Setup. M9383B/84B Measurement Guide...
  • Page 57  and choose 5GNR_1CC_FR2_120kHz_SCS_100MHz_256QAM_DCPunctured_28GH z.wfm  then Select. 7. Select Enable Vector Modulation Signal. 8. Close the Signal block. 9. Select the Adjustments block and select Optimize Dynamic Range with OBW and Enable System RF Flatness Correction. M9383B/84B Measurement Guide...
  • Page 58 10.Set RF Out to On by selecting the RF Out switch. This enables the RF Out for the indicated channel, in this case Channel 1 if using a 2-channel VXG. M9383B/84B Measurement Guide...
  • Page 59 You will need to copy over the setup files to the N9040B or the PC running the VSA application. 1. Select Recall (If accessing the N9040B remotely, select the Folder icon at the bottom of the display) > Component Carrier Setup > Recall From >   5GNR_1CC_FR2_120kHz_SCS_100MHz_256QAM_DCpunctured_ 28GHz.scp   Recall M9383B/84B Measurement Guide...
  • Page 60 5. Select the Settings tab > Optimize EVM. The Optimize EVM function automatically sets the combination of preamplification, mechanical and electronic attenuation, and IF gain based on the measured signal peak level. EVM should be less than 1%. M9383B/84B Measurement Guide...
  • Page 61 5G New Radio (NR) Measurements using X-Apps 5G Waveform, EVM, and ACP Analysis Using X-Applications M9383B/84B Measurement Guide...
  • Page 62  D:\Users\Instrument\Documents\Keysight\PathWave  \SignalGenerator\Examples  You will need to copy over the setup files to the N9040B or the PC running the VSA application. MMEMory:LOAD:EVM:SETup CC0, “D:\Users\Instrument\Documents\NR5G\data\NR5GEvm\CarrierSetu p\5GNR_1CC_FR2_120kHz SCS_100MHz_256QAM_DCpunctured_28GHz.scp” EVM:CCARrier0:TIME:LENGth:SEARch 10ms EVM:CCARrier0:TIME:LENGth:RESult 2 EVM:CCARrier0:FRAMe:TRIGger ON EVM:CCARrier0:DC:PUNCture ON M9383B/84B Measurement Guide...
  • Page 63 5G New Radio (NR) Measurements using X-Apps 5G Waveform, EVM, and ACP Analysis Using X-Applications EVM:CCARrier0:PHASe:COMPensation:AUTO OFF EVM:CCARrier0:PHASe:COMPensation:FREQuency 0 Hz EVM:OPTimize M9383B/84B Measurement Guide...

  • Page 64: Setting Up An 8 Cc 28 Ghz Evm Measurement

    2. Set Frequency to 28 GHz and Amplitude to 5 dBm. 3. Select the Signal block to open. 4. Set Vector Modulation Signal Mode to Waveform File. 5. Select the Markers block and set Sync to Marker 2 and then select Back to close the Markers Setup. M9383B/84B Measurement Guide...
  • Page 65  5GNR_8CC_FR2_120kHz_SCS_100MHz_256QAM_Corrected_28GHz. wfm  then Select. 6. Select Enable Vector Modulation Signal. 7. Close the Signal block. 8. Select the Adjustments block and select Optimize Dynamic Range with OBW and Enable System RF Flatness Correction. M9383B/84B Measurement Guide...
  • Page 66 EVM. The trade-off is to balance between flatness and signal to noise ratio. 9. Set RF Out to On by selecting the RF Out switch. This enables the RF Out for the indicated channel, in this case Channel 1. M9383B/84B Measurement Guide...
  • Page 67 1. Select Recall (If accessing the N9040B remotely, select the Folder icon at the bottom of the display) > Component Carrier Setup > Recall From >  5GNR_8CC_FR2_120kHz_SCS_100MHz_256QAM_Corrected_28GHz.scp > Recall. You must be in the correct analysis mode to recall the .scp file. M9383B/84B Measurement Guide...
  • Page 68 The multi-carrier filter is used to filter out the unwanted carriers and minimize leakage into the component carrier of interest. 4. Ensure that RF for Phase Compensation is not selected and the value is 0 Hz, then Close the Advanced Settings table. M9383B/84B Measurement Guide...
  • Page 69 EVM value. Continue doing this until you reach a point where increasing the attenuation worsens the EVM result, then back off one increment. 2. Select Meas Setup > Advanced tab, and set Other IF Gain. M9383B/84B Measurement Guide...
  • Page 70 VXG power level was set to 5 dBm and the mechanical attenuation was set to 14 dB, a 2 dB increase to the VXG power level (7 dBm) will result in a 2 dB increase to the mechanical attenuation (14 dB to 16 dB). M9383B/84B Measurement Guide...
  • Page 71 1. In the top right window, select the Window Title in the upper left hand corner of the window. a. Select the Data dropdown and choose Demod > IQ Meas Time. b. Select the Data dropdown again and select Component Carrier > CC1. M9383B/84B Measurement Guide...
  • Page 72 5. Now you must optimize the settings for CC1. a. Select Meas Setup > and set Component Carrier to CC1: b. Select Meas Time and set: — Search Length to 10 ms — Result Length to 2 Sub Frame — Frame Trigger to On M9383B/84B Measurement Guide...
  • Page 73 Add More Windows to View Additional Carriers to the Display You can use the View Editor function in the N9040B to add more windows for the current measurement. In this example, we will add three more windows to view measurement results for 3 carriers. M9383B/84B Measurement Guide...
  • Page 74 3. Repeat this step for the middle and bottom windows, then close the View Editor dialog by selecting the View Editor button. 4. Rename the new windows and setup an other carrier as described in “To View the Results of Two Carriers” on page M9383B/84B Measurement Guide...
  • Page 75 You will need to copy over the setup files to the N9040B or the PC running the VSA application. Navigate to the desired waveform file. MMEMory:LOAD:EVM:SETup CC0, “D:\Users\Instrument\Documents\NR5G\data\NR5GEvm\CarrierSetu p\5GNR_8CC_FR2_120kHz_SCS_100MHz_256QAM_Corrected_28GHz.scp” EVM:CCARrier0:TIME:LENGth:SEARch 10ms EVM:CCARrier0:TIME:LENGth:RESult 2 EVM:CCARrier0:FRAMe:TRIGger ON EVM:CCARrier0:MCFilter ON EVM:CCARrier0:DC:PUNCture ON M9383B/84B Measurement Guide...
  • Page 76 5G New Radio (NR) Measurements using X-Apps 5G Waveform, EVM, and ACP Analysis Using X-Applications EVM:CCARrier0:PHASe:COMPensation:AUTO OFF EVM:CCARrier0:PHASe:COMPensation:FREQuency 0 Hz To Optimize EVM for Multi-Carrier Waveforms POWer:ATTenuation 0dB [POWer:ATTenuation 2dB], … EVM:IF:GAIN:LEVel 0dB M9383B/84B Measurement Guide...
  • Page 77 Set the middle right window to display the FFT of the Raw Main Time waveform DISPlay:EVM:WINDow4:DATA SPEC DISPlay:EVM:WINDow4:CCARrier CC1 Set the bottom right window to display a table of general measurement numeric results DISPlay:EVM:WINDow6:DATA DRES DISPlay:EVM:WINDow6:CCARrier CC1 Set the bottom left window to display the error summary for CC0 DISPlay:EVM:WINDow5:DATA DRES M9383B/84B Measurement Guide...

  • Page 78: Setting Up A 1 Cc 3.5 Ghz Apc Measurement

    3. Select the Signal block to open the Vector Modulation Signal Setup panel. 4. Set Vector Modulation Signal Mode to Waveform File. 5. Select the Markers block and set Sync to Marker 2 and then select Back to close the Marker Setup. M9383B/84B Measurement Guide...
  • Page 79 7. In the Vector Modulation Signal Setup, ensure that Enable Vector Modulation Signal is selected, then close the Signal block. 8. Set RF Out to On by selecting the RF Out switch. This enables the RF Out for the indicated channel, in this case Channel 1. M9383B/84B Measurement Guide...
  • Page 80 If accessing the instrument via a Remote Desktop connection, select the Screen tab (at the top of the display) to open the Mode/Measurement/View Selector window. 3. Select Frequency and set Carrier Reference Frequency to 3.5 GHz. 4. Select Meas Setup > Advanced and turn Noise Correction On. M9383B/84B Measurement Guide...
  • Page 81 5G New Radio (NR) Measurements using X-Apps 5G Waveform, EVM, and ACP Analysis Using X-Applications M9383B/84B Measurement Guide...
  • Page 82 SIGNal1:MODE WAVeform SIGNal1:WAVeform:TRIGger:SYNC:MARKer M2 SIGNal1:WAVeform “D:\Users\Instrument\Documents\MCS demo waveforms\5GNR_1CC_FR1_30kHz_SCS_100MHz_256QAM_DCPunctured.w fm” SIGNal1 ON DM:OPTimization:CHANnel ACP RFALl:OUTPut ON RF1:OUTPut ON For multi-channel instruments, set RF Out (all) to On. RFALl:OUTPut ON On the N9040B: SYSTem:PRESet INSTrument:CONFigure: NR5G:ACP CCARrier:REFerence 3.5GHZ ACPower:CORRection:NOISe ON M9383B/84B Measurement Guide...

  • Page 83: View The Results

    1. In the Output area, set Frequency to 28 GHz and Power to  -10 dBm. 2. Select the Signal block to open the Vector Modulation Signal Setup panel. 3. Set Vector Modulation Signal Mode to 5G NR, and then select Edit Signal. M9383B/84B Measurement Guide...
  • Page 84 Signal Studio waveforms, which are independent from carrier frequency. Phase Compensation is set to Auto by default. The frequency is coupled with the VXG frequency setting. You can select Manual to specify a different frequency, or turn it off. M9383B/84B Measurement Guide...
  • Page 85 You can select FR, bandwidth, and modulation format with a fully allocated PDSCH data channel. This would represent a spectrally correct signal a typical power amplifier would use. You can modify the RB allocations and Slot allocations if fully allocated data channels are not desired. M9383B/84B Measurement Guide...
  • Page 86 PBCH Block and set Lmax to 64 and Active Indices to = 0:7. Instead of transmitting all 64 beams, we enable only 8 of them be setting Active Indices to 0:7. Lmax is either 4 or 8 for FR1 and 64 for FR2. M9383B/84B Measurement Guide...
  • Page 87 The Modulation Coding Scheme (MCS) specifies the modulation, coding and overall spectral efficiency of the PDSCH as specified in 3GPP Table 5.1.3.1. 10.Select Generate to generate the Waveform, and then select Back to exit the setup panel. M9383B/84B Measurement Guide...
  • Page 88 5G New Radio (NR) Measurements using X-Apps 5G Waveform, EVM, and ACP Analysis Using X-Applications 11.Select the Markers block and set Sync to Marker 2, then select Back. M9383B/84B Measurement Guide...
  • Page 89 13.Set RF Out to On by selecting the RF Out switch. Setup Auto Configure Analyzer 1. Select the System menu (accordion tab at the top left of the window) to open the System Menu and then select System Config. M9383B/84B Measurement Guide...
  • Page 90 5G Waveform, EVM, and ACP Analysis Using X-Applications 2. In the System Configuration setup, click on the Remote Signal Analyzer block (on far right) to setup the communication channel to the Keysight X-Series Signal Analyzer. 3. Set Connection Type to LAN.
  • Page 91 — Trace 3: shows the FTT of the Raw Main Time waveform. — Trace 4: shows the general measurement numeric results. M9383B/84B Measurement Guide...
  • Page 92 PDSCH-DMRS, the value is 1016 because two of the 16 slots overlap with the SS Block which occupies 20 RBs resulting in 20 RBs being punctured from DMRS in these two slots. Therefore, the total RB Number for DMRS is 1056 - 20 * 2 = 1016. M9383B/84B Measurement Guide...
  • Page 93 SIGNal1:NR5G:CCARrierDL:BWIDth FR2BW100M Select µ = 3: 120kHz: SIGNal1:NR5G:CCARrierDL:SNUMerology MU3 SIGNal1:NR5G:CCARrierDL:DLINk:SSBLock:LMAX 64 SIGNal1:NR5G:CCARrierDL:DLINk:SSBLock:ACTive:INDices 0:7 SIGNal1:NR5G:CCARrierDL:DLINk:SCH0:MCS 20 SIGNal1:NR5G:CCARrierDL:DLINk:SCH0:MCS:TABLe TABL52 SIGNal1:NR5G:WAVeform:GENerate SIGNal1:WAVeform:TRIGger:SYNC:MARKer M2 SIGNal1 ON RFALl:OUTPut ON RF1:OUTPut ON For multi-channel instruments, set RF Out (all) to On. RFALl:OUTPut ON M9383B/84B Measurement Guide...
  • Page 94 5G New Radio (NR) Measurements using X-Apps 5G Waveform, EVM, and ACP Analysis Using X-Applications M9383B/84B Measurement Guide...
  • Page 95 Keysight M9383B/84B Signal Generator Measurement Guide 5G NR Measurements Using the VSA Software This section includes the following topics: — “5G Waveform and EVM Analysis Using VSA Software” on page 96 — “Setting Up a 1 CC 28 GHz EVM Measurement” on page 96 —...

  • Page 96: 5G Waveform And Evm Analysis Using Vsa Software

    5 dBm. 3. Select the Signal block to open the Vector Modulation Signal Setup panel. 4. Set Vector Modulation Signal Mode to Waveform File. 5. Select the Markers block and set Sync to Marker 2, then select Back. M9383B/84B Measurement Guide...
  • Page 97 9. Select the Adjustments block and select Optimize Dynamic Range with OBW and Enable System RF Flatness Correction. Optimize Dynamic Range with OBW This setting filters the system RF flatness correction coefficients over the instantaneous bandwidth indicated in the waveform header (or in the “Occupied Bandwidth” M9383B/84B Measurement Guide...
  • Page 98 EVM. The trade-off is to balance between flatness and signal to noise ratio. 10.Set RF Out to On by selecting the RF Out switch. This enables the RF Out for the indicated channels, in this case Channel 1. M9383B/84B Measurement Guide...
  • Page 99 1. From the menu bar, select File > Preset > All to set the VSA to a known state. All example waveforms and setup files are located on the VXG at:  D:\Users\Instrument\Documents\Keysight\PathWave \SignalGenerator\Examples  You will need to copy over the setup files to the N9040B or the PC running the VSA application. M9383B/84B Measurement Guide...
  • Page 100 4. From the menu bar, select Input > Trigger and set Style to External and Level to 1.0 V. 5. Select the Extensions tab and change the External Trigger location to Trigger 3 In and Phase Noise Optimization to Best Wide Offset. M9383B/84B Measurement Guide...
  • Page 101 5G Waveform and EVM Analysis Using VSA Software 6. From the menu bar, select MeasSetup > 5G NR Demod Properties > Time tab. — Set Result Length to 10 Subframes. — Set Meas Interval to 2 Subframes. — Select Frame Trigger is Present. M9383B/84B Measurement Guide...
  • Page 102 5G Waveform and EVM Analysis Using VSA Software 7. From the toolbar, select the Auto-Range dropdown and select EVM. 8. Select the Auto-Range icon to run the measurement for EVM optimization. This may take a few minutes to complete. M9383B/84B Measurement Guide...
  • Page 103 \SignalGenerator\Examples  You will need to copy over the setup files to the N9040B or the PC running the VSA application. SYSTem:PRESet MMEMory:LOAD “D:Users\Instrument\MyDocuments\NR5G\data\NR5GEvm\Carrier Setup\5GNR_1CC_FR2_120kHz SCS_100MHz_256QAM_DCPunctured_28GHz.setx” INITiate:PAUSe INPut:TRIGger:STYle "EXTERNAL" INPut:TRIGger:LEVel:EXTernal 1V INPut:EXTension:PARameters:SET "ExtTriggerLoc", 2 INPut:EXTension:PARameters:SET "PhaseNoiseOptDualLoop", 1 M9383B/84B Measurement Guide...
  • Page 104 5G NR Measurements Using the VSA Software 5G Waveform and EVM Analysis Using VSA Software Set the 5G NR Demod Result Length to 10 Subframes: NR5G:RLENgth 10 NR5G:SUBFrame:INTerval 2 Set the Acquisition Mode to “Frame Trigger is Present” nr5g:FRAMe:TRIGger:ENABled 1 M9383B/84B Measurement Guide...

  • Page 105: Setting Up An 8 Cc 28 Ghz Evm Measurement

    5 dBm. 3. Select the Signal block to open the Vector Modulation Signal Setup panel. 4. Set Vector Modulation Signal Mode to Waveform File. 5. Select the Markers block and set Sync to Marker 2, then select Back. M9383B/84B Measurement Guide...
  • Page 106 DAC bits that can be used, which degrades the signal to noise ratio and therefore potentially EVM. The trade-off is to balance between flatness and signal to noise ratio. M9383B/84B Measurement Guide...
  • Page 107 5G NR Measurements Using the VSA Software 5G Waveform and EVM Analysis Using VSA Software 10.Set RF Out to On by selecting the RF Out switch. This enables the RF Out for the indicated channels, in this case Channel 1. M9383B/84B Measurement Guide...
  • Page 108 3. From the toolbar, select the Pause Icon. Pausing the measurement will help to speed up the setup time. 4. From the menu bar, select Input > Trigger and set Style to External and Level to 1.0 V. M9383B/84B Measurement Guide...
  • Page 109 5G NR Measurements Using the VSA Software 5G Waveform and EVM Analysis Using VSA Software 5. Select the Extensions tab and change the External Trigger location to Trigger 3 In and Phase Noise Optimization to Best Wide Offset. M9383B/84B Measurement Guide...
  • Page 110 — Set Result Length to 10 Subframes. — Set Meas Interval to 2 Subframes. — Select Frame Trigger is Present. 7. Select the Configuration tab. a. In the Aggregation area, ensure that Reference is set to CC0. b. Select Configure > 8CC, Contiguous. M9383B/84B Measurement Guide...
  • Page 111 5G Waveform and EVM Analysis Using VSA Software c. Select the entry box for CCO and enter -349.860 MHz. Use the table below to setup all 8 carriers. 8. Select the Advanced tab select Multicarrier Filter On and DC Punctured. M9383B/84B Measurement Guide...
  • Page 112 5G Waveform and EVM Analysis Using VSA Software 9. In the bottom center trace window, select the Trace Data menu and select Demod: > CC Summary. 10.In the Spectrum trace window, select Center and change the frequency to 28 GHz. M9383B/84B Measurement Guide...
  • Page 113 5G Waveform and EVM Analysis Using VSA Software 11.From the toolbar, select the Auto-Range dropdown and select EVM. 12.Select the Auto-Range icon to run the measurement for EVM optimization on all eight channels. This may take a few minutes to complete. M9383B/84B Measurement Guide...
  • Page 114 For multi-channel instruments, set RF Out (all) to On. RFALl:OUTPut ON On the N9040B INSTrument:SELect VSA89601 MMEMory:LOAD:DEMO "D:\Users\Instrument\Documents\NR5G\data\NR5GEvm\CarrierSetu p\1CC_FR2_120kHz SCS_100MHz_256QAM_DC Punctured_28GHz.setx" INITiate:PAUSe INPut:TRIGger:STYLe "External" INPut:TRIGger:LEVel:EXTernal 1V INPut:EXTension:PARameters:SET "ExtTriggerLoc", 2 INPut:EXTension:PARameters:SET "PhaseNoiseOptDualLoop", 1 NR5G:RLENgth 10 NR5G:SUBFrame:INTerval 2 NR5G:FRAMe:TRIGger:ENABled 1 NR5G:CAGGregation:CONFigure “Contiguous8CC” NR5G:DC:PUNCtured 1 NR5G:MCFilter:ENABled 1 M9383B/84B Measurement Guide...
  • Page 115 INPut:ANALog:CRITeria:RANGe:AUTO "EVM", 100 All example waveforms and setup files are located on the VXG at:  D:\Users\Instrument\Documents\Keysight\PathWave \SignalGenerator\Examples  You will need to copy over the setup files to the N9040B or the PC running the VSA application. M9383B/84B Measurement Guide...

  • Page 116: Creating A Basic 5G Nr Signal Using Pathwave N7631Appc Embedded Software

    2. In the Output area, set Frequency to 28 GHz and Power to  -10 dBm. 3. Select the Signal block to open the Vector Modulation Signal Setup panel. 4. Set Vector Modulation Signal Mode to 5G NR, then Edit Signal. M9383B/84B Measurement Guide...
  • Page 117 Signal Studio waveforms, which are independent from carrier frequency. Phase Compensation is set to Auto by default. The frequency is coupled with the VXG frequency setting. You can select Manual to specify a different frequency, or turn it off. M9383B/84B Measurement Guide...
  • Page 118 You can select FR, bandwidth, and modulation format with a fully allocated PDSCH data channel. This would represent a spectrally correct signal a typical power amplifier would use. You can modify the RB allocations and Slot allocations if fully allocated data channels are not desired. M9383B/84B Measurement Guide...
  • Page 119 PBCH Block and change Lmax to 64 and Active Indices to = 0:7. Instead of transmitting all 64 beams, we enable only 8 of them be setting Active Indices to 0:7. Lmax is 4 or 8 is for FR1 and 64 for FR2. M9383B/84B Measurement Guide...
  • Page 120 10.From the Carrier panel (in the left pane), select Channels > DL-SCHs > DL-SCH0 > Modulation and Coding and set MCS Table to Table 5.1.3.1-2 (256QAM) and MCS to 20. 11.Select Generate to generate the Waveform, and then select Back. M9383B/84B Measurement Guide...
  • Page 121 5G Waveform and EVM Analysis Using VSA Software 12.Select the Markers block and set Sync to Marker 2, and then select Back. 13.Select Enable Vector Modulation Signal. 14.Set RF Out to On by selecting the RF Out switch. M9383B/84B Measurement Guide...
  • Page 122 3. From the toolbar, select the Pause Icon. Pausing the measurement will help to speed up the setup time. 4. From the menu bar, select Input > Trigger and set Style to External and Level to 1.0 V. M9383B/84B Measurement Guide...
  • Page 123 5. Select the Extensions tab and change the External Trigger location to Trigger 1 In or Trigger 3 In (Use Trigger 3 if your N9040B has Option H1G, 1 GHz BW) and set Phase Noise Optimization to Best Wide Offset. M9383B/84B Measurement Guide...
  • Page 124 7. From the menu bar, select MeasSetup > 5G NR Demod Properties > Configuration tab. Use Quick Setups for convenient saving and loading of common configurations. Quick Setups are factory supplied configurations and cannot be deleted by users. (This includes Signal Studio Downlink and Uplink defaults.) M9383B/84B Measurement Guide...
  • Page 125 66 RB. This value will be used when we configure BWP, SS/PBCH, and PDSCH. FR2 only uses 60, 120, or 240 kHz numerologies. This is why 15 and 30 kHz numerologies do not show under the Resource Grid. M9383B/84B Measurement Guide...
  • Page 126 — RB Number 66 RB A component carrier with 100 MHz at FR2 has a maximum RB of 66 for 120 kHz numerology. In this example, DL-BWP uses the full carrier bandwidth of 66 RBs as shown below. M9383B/84B Measurement Guide...
  • Page 127 For this example, we will not use all 64 SS Blocks; we will activate only 8 of them. You can also select the Auto Detect Active Block and set the Det Power Threshold to auto detect the active SS Blocks. M9383B/84B Measurement Guide...
  • Page 128 RB and kSSB of 0 subcarriers places it in the center of the carrier bandwidth. This value is calculated based on the 60 kHz numerology as defined by 3GPP (15 and 30 kHz sub-carrier spacing uses 15 kHz numerology, 120 and 240 kHz spacing uses 60 kHz numerology.) M9383B/84B Measurement Guide...
  • Page 129 11.From the Channel pane, select PDSCH and then set the following parameters: — Under Modulation and Config section, set MCS Table to Table 256QAM and MCS to 20. 3GPP has different Tables for PDSCH MCS. Table 5.1.3.1-2 has 256 QAM as maximum modulation M9383B/84B Measurement Guide...
  • Page 130 — Under the Time/Freq Allocation section, set — Allocated Slots to 0:79 — Slot Format to 0 — First Symbol to 0 — Last Symbol to 13 — RB Offset to 0 RB — RB Number to 66 RB M9383B/84B Measurement Guide...
  • Page 131 Symbol Phase Compensation > From Measurement Center is enabled by default. It is specified in the 3GPP requirement and is used to compensate for phase differences between symbols caused by up conversion or down conversion. Getting this setting wrong will cause demod issues. M9383B/84B Measurement Guide...
  • Page 132 This may take a few minutes to complete. The VSA has color coding based on channel type, marker coupling to pinpoint error, symbol level analysis (by changing the measurement interval, and measurement offset into a single symbol). M9383B/84B Measurement Guide...
  • Page 133 Subsegment refers to Layers, (in case of MIMO), BWP, and SS Block. In the downlink, Layers in DL-BWP and SS Block are presented as subsegments. In the uplink, Layers in UL-BWP are presented as subsegments. The following traces can be filtered by subsegments and channel types. — OFDM Meas M9383B/84B Measurement Guide...
  • Page 134 This allows you to take a look at SS Block. You can also filter with SS Block Channels/Signals you want to see by using the Filtered Channel Type. 4. Select Trace E (OFDM Detected Allocations Time) from the Trace dialog. 5. In the Filtered SubSegments area, clear the SS Block0 check box. M9383B/84B Measurement Guide...
  • Page 135 1016 because of the 16 slots overlap with the SS Block, which occupies 20 RBs. This results in 20 RBs being punctured from DMRS in these two slots, so the total RB Number for DMRS is 1056-20*2 = 1016. M9383B/84B Measurement Guide...
  • Page 136 For multi-channel instruments, set RF Out (all) to On. RFALl:OUTPut ON On the N9040B: INSTrument:SELect VSA89601 SYSTem:PRESet FREQuency:CENTer 28 GHz INPut:ANALog:RANGe:AUTO INITiate:PAUSe INPut:TRIGger:STYLe "External" INPut:TRIGger:LEVel:EXTernal 1V INPut:EXTension:PARameters:SET "ExtTriggerLoc", 2 (This will set it to Trigger 3) NR5G:FRAMe:TRIGger:ENABled 1 INPut:EXTension:PARameters:SET "PhaseNoiseOptDualLoop", 1 MEASure:CONFigure NR5G M9383B/84B Measurement Guide...
  • Page 137 NR5G:SSBLock:AINDexes "0:7" NR5G:DBWP:PDSCh1:MCS:TABLe "Table2" NR5G:DBWP:PDSCh1:MCS 20 NR5G:DBWP:PDSCh1:SLOT:ALLocated "0:79" NR5G:CCAR:PDSCH1:SFI 0 NR5G:CCAR:PDSCH1:SINDex:FIRSt 0 NR5G:CCAR:PDSCH1:SINDex:LAST 13 NR5G:CCAR:PDSCH1:ROFFset 0 NR5G:CCAR:PDSCH1:RNUMber 66 NR5G:RLENgth 10 NR5G:SUBFrame:INTerval 2 NR5G:FRAMe:TRIGger:ENABled 1 NR5G:DC:PUNCtured 1 NR5G:MCFilter:ENABled 1 NR5G:FREQuency:LOCK:EXTended 1 NR5G:COMPensate:SYMBol:CLOCk:OFFset 1 DISPlay:LAYout 3,2 INPut:ANALog:CRITeria:RANGe:AUTO "EVM", 1000 M9383B/84B Measurement Guide...

  • Page 138: Creating A Dl Mimo Signal Using Pathwave Signal Generation

    2-channel VXG signal generator and a 2+ channel, 33 GHz or higher Infiniium UXR-Series Oscilloscope. If you do not have access to a Keysight Infiniium UXR Real-Time Oscilloscope, a UXR recording waveform file has been included in the Example waveform file folder: D:\Users\Instrument\Documents\Keysight\PathWave...
  • Page 139 2. In the Output area for both Channel 1 and Channel 2, set Frequency to  28 GHz and Power to 0 dBm. 3. In the Configuration area, change the signal configuration from Independent to 2 Tx Coherent. M9383B/84B Measurement Guide...
  • Page 140 5G NR Measurements Using the VSA Software 5G Waveform and EVM Analysis Using VSA Software 4. Select the Signal block to open the Vector Modulation Signal Setup panel. 5. Set Vector Modulation Signal Mode to 5G NR, then Edit Signal. M9383B/84B Measurement Guide...
  • Page 141 5G NR Measurements Using the VSA Software 5G Waveform and EVM Analysis Using VSA Software M9383B/84B Measurement Guide...
  • Page 142 7. Select the Carriers tab > Cell Specific node, and confirm the following settings: — Carrier Type is Downlink — Cell ID = 0  — Numerology = 1:30 kHz — Bandwidth FR1 100 MHz — Max RB = 273 M9383B/84B Measurement Guide...
  • Page 143 5G NR Measurements Using the VSA Software 5G Waveform and EVM Analysis Using VSA Software 8. Select the Channels node > SS PPCH > SS PBCH Block and set: — Periodicity to 10 ms — RB Offset to 0 M9383B/84B Measurement Guide...
  • Page 144 The Number of Layers is updated to 2 and each layer is assigned with a particular DMRS port. Also, Antenna Ports Generated is automatically set to p0,p1. This will map generated multiple antenna port signals to different antennas (instruments). M9383B/84B Measurement Guide...
  • Page 145 10.Select the Resource Allocation node and set: — Allocated Slots to 2:19 — RB Offset to 40 — RB Number to 80 DL-SCH0 will occupy the RBs 40-80 and DL-SCH1 will occupy the rest of the resources. M9383B/84B Measurement Guide...
  • Page 146 5G NR Measurements Using the VSA Software 5G Waveform and EVM Analysis Using VSA Software 11.Select the Modulation and Coding node and set: — MCS Table to 5.1.3.1-2 (256 QAM) — MCS to 20 M9383B/84B Measurement Guide...
  • Page 147 5G NR Measurements Using the VSA Software 5G Waveform and EVM Analysis Using VSA Software 12.Select the DMRS node and set DMRS Boosting to 3 dB. M9383B/84B Measurement Guide...
  • Page 148 5G NR Measurements Using the VSA Software 5G Waveform and EVM Analysis Using VSA Software 13.Under the DL-SCHs node, select Edit. M9383B/84B Measurement Guide...
  • Page 149 5G Waveform and EVM Analysis Using VSA Software 14.Select Add New to add a new DL-SCH (DL-SCH1), and then select Back. This will create a conflict between DL-SCH0 and DL-SCH1. This will be resolved in a later step. M9383B/84B Measurement Guide...
  • Page 150 Notice that Number of Layers is updated to 2 and each layer is assigned with a particular DMRS port. Antenna Ports Generated is automatically assigned p0,p1, which will map generated multiple antenna port signals to different antennas (instruments). M9383B/84B Measurement Guide...
  • Page 151 Notice that this resolves the conflict between DL-SCH channels. (The pink shading is removed from the Channel Allocation graph. To clear the conflict error message at the bottom of the display, select the Message icon (bottom, right corner) and select Clear. M9383B/84B Measurement Guide...
  • Page 152 5G NR Measurements Using the VSA Software 5G Waveform and EVM Analysis Using VSA Software 17.Select the Modulation and Config node, and set: — MCS Table to Table 5.1.3.1-1 (64 QAM) — MCS to 20 M9383B/84B Measurement Guide...
  • Page 153 5G NR Measurements Using the VSA Software 5G Waveform and EVM Analysis Using VSA Software 18.Select the Waveform Tab and select Generate. M9383B/84B Measurement Guide...
  • Page 154 5G NR Measurements Using the VSA Software 5G Waveform and EVM Analysis Using VSA Software 19.Select Back to return to the Signal Setup dialog, then select the Enable Vector Modulation Signal check box. M9383B/84B Measurement Guide...
  • Page 155 21.Close the Signal Setup block and select RF Out to On to enable the RF Output for both channel 1 and 2, and then select RF Out (All) master control switch to turn the RF output On for both channels. M9383B/84B Measurement Guide...
  • Page 156 1. From the VSA menu bar, select File > Preset > All to set the VSA to a known state. If you do not have access to a Keysight Infiniium UXR Real-Time Oscilloscope, a UXR recording waveform file has been included in the Example waveform file folder: D:\Users\Instrument\Documents\Keysight\PathWave...
  • Page 157 N9040B or the PC running the VSA application. From the VSA menu panel, select File > Recall Recording and navigate to the waveform file. Refer to the Keysight 89600 VSA Software Help for more information. 2. From the menu bar, select Input > Channels > Baseband > 2 Channels.
  • Page 158 Carrier pane and note that the Num of Meas. Channels is set to 2. 6. Select the BWP pane and confirm that DL-BWP is enabled. We will use the default settings of:  — Numerology = 1:30 kHz — RB Offset = 0 RB — RB Number = 273 RB M9383B/84B Measurement Guide...
  • Page 159 8. Select the PDSCH pane and for PDSCH 0, set: — MCS Table to Table 256 QAM — MCS to 20 — Allocated Slots to 2:19 — RB Offset to 40 RB — RB Number to 80 RB M9383B/84B Measurement Guide...
  • Page 160 Boosting has automatically been set to 3 dB. According to the 3GPP definition, DMRS power boosting is 3 dB for CDM Group Number = 2 and VSA, similar to PathWave, changes the DMRS power boosting to 3 dB. M9383B/84B Measurement Guide...
  • Page 161 11.To add and configure PDSCH1, select Add PDSCH. 12.Select PDSCH1 and set: — MCS Table to Table 64 QAM — MCS to 20 — Allocated Slots to 2:19 — RB Offset to 150 RB — RB Number to 100 RB M9383B/84B Measurement Guide...
  • Page 162 13.Scroll down and open the Antenna Port dropdown and set: — Antenna Ports Used to 0:1 — DMRS CDM group(s) without data to 2. 14.Select the Power Boosting dropdown and verify that DMRS Power Boosting is set to 3 dB. M9383B/84B Measurement Guide...
  • Page 163 5G NR Measurements Using the VSA Software 5G Waveform and EVM Analysis Using VSA Software 15.To configure the time settings, select the Time tab and set: — Meas Interval to 2 Subframes — Enable Frame Trigger is present M9383B/84B Measurement Guide...
  • Page 164 Antenna Port settings. Different decode levels are supported. This allows advanced users to be able to check into the intermediate step data for algorithm or troubleshooting. 17.Select the Advanced tab and select the DC Punctured check box. M9383B/84B Measurement Guide...
  • Page 165 5G NR Measurements Using the VSA Software 5G Waveform and EVM Analysis Using VSA Software 18.From the menu bar, select Input > Trigger and set: — Style to External — Level to 1 V M9383B/84B Measurement Guide...
  • Page 166 5G NR Measurements Using the VSA Software 5G Waveform and EVM Analysis Using VSA Software 19.Change the traces so you can see the Constellation diagram, MIMO Info table, Frame Summary table, OFDM Detected Allocations Time, Decoded Info plus any additional traces. M9383B/84B Measurement Guide...
  • Page 167 INSTrument:SELect VSA89601 SYSTem:PRESet FREQuency:CENTer 28 GHz FREQuency:SPAN 122.88 MHz INPut:ANALog:RANGe:AUTO INITiate:PAUSe INP:CHAN:CONF RF,RF MEASure:CONFigure NR5G NR5G:DBWP:ENABled 1 NR5G:SSBLock:ENABled 1 NR5G:SSBLock:ROFFset 0 NR5G:SSBLock:PERiodicity "Period10Milliseconds" NR5G:DBWP:PDSCh1:MCS:TABLe "Table2" NR5G:DBWP:PDSCh1:MCS 20 NR5G:DBWP:PDSCh1:SLOT:ALLocated "2:19" NR5G:CCARrier:PDSCh1:ROFFset 40 NR5G:CCARrier:PDSCh1:RNUMber 80 NR5G:CCARrier:PDSCh1:ANTenna:PORT:USED 3 NR5G:CCARrier:PDSCh1:RCGNumber "Two" M9383B/84B Measurement Guide...
  • Page 168 NR5G:CCARrier:PDSCh2:ROFFset 150 NR5G:CCARrier:PDSCh2:RNUMber 100 NR5G:CCARrier:PDSCh2:ANTenna:PORT:USED 3 NR5G:CCARrier:PDSCh2:RCGNumber "Two" NR5G:DBWP:PDSCh2:BPOWer:DMRS 2 NR5G:RLENgth 10 NR5G:SUBFrame:INTerval 2 NR5G:FRAMe:TRIGger:ENABled 1 NR5G:DC:PUNCtured 1 NR5G:MCFilter:ENABled 1 NR5G:COMPensate:SYMBol:CLOCk:OFFset 1 INPut:TRIGger:STYLe "External" INPut:TRIGger:LEVel:EXTernal 1V INPut:EXTension:PARameters:SET "ExtTriggerLoc", 2 INPut:EXTension:PARameters:SET "PhaseNoiseOptDualLoop", 1 NR5G:FRAMe:TRIGger:ENABled 1 NR5G:DECode:MODE "DecodedTB" DISPlay:LAYout 3,2 M9383B/84B Measurement Guide...

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