Rohde & Schwarz VSE-K149 User manual

R&S®VSE-K149
HRP UWB Measurement Application
User Manual
1179331502
Version 01
(;ÝQ?2)

This manual applies to the following software, version 2.00 and later:
●R&S®VSE Enterprise Edition base software (1345.1105.06)
●R&S®VSE Basic Edition base software (1345.1011.06)
The following firmware options are described:
●R&S VSE-K149 (1345.1463.06)
© 2021 Rohde & Schwarz GmbH & Co. KG
Mühldorfstr. 15, 81671 München, Germany
Phone: [phone] - 0
Email: [email protected]
Internet: www.rohde-schwarz.com
Subject to change – data without tolerance limits is not binding.
R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG.
Trade names are trademarks of the owners.
1179.3315.02 | Version 01 | R&S®VSE-K149
The following abbreviations are used throughout this manual: R&S®VSE is abbreviated as R&S VSE.

Contents
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Contents
1 Preface.................................................................................................... 5
1.1 About this Manual......................................................................................................... 5
1.2 Conventions Used in the Documentation...................................................................5
2 Welcome to the HRP UWB Application................................................7
2.1 Starting the HRP UWB Application..............................................................................7
2.2 Understanding the Display Information......................................................................8
3 Measurements and Result Displays...................................................10
3.1 Evaluation Methods for HRP UWB............................................................................ 10
4 Configuration........................................................................................19
4.1 Configuration Overview..............................................................................................19
4.2 Input and Frontend Settings...................................................................................... 20
4.3 Trigger Settings...........................................................................................................33
4.4 Data Acquisition..........................................................................................................36
4.5 Burst/Sync................................................................................................................... 38
4.6 Demodulation.............................................................................................................. 39
4.7 Evaluation Range........................................................................................................ 40
5 Analysis................................................................................................ 42
5.1 Configuring Traces..................................................................................................... 42
5.2 Using Markers............................................................................................................. 45
5.3 Evaluation Modes........................................................................................................46
6 Remote Commands for HRP UWB Measurements........................... 47
6.1 Introduction................................................................................................................. 47
6.2 Common Suffixes........................................................................................................52
6.3 Activating HRP UWB Measurements........................................................................ 52
6.4 Configuring the Result Display..................................................................................53
6.5 Retrieving Results.......................................................................................................54
6.6 Configuring the Measurement................................................................................... 84
6.7 Configuring Standard Traces...................................................................................130

Contents
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6.8 Configuring Markers................................................................................................. 133
List of Remote Commands (HRP UWB)........................................... 135
Index....................................................................................................141

Preface
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1 Preface
1.1 About this Manual
This R&S VSE HRP UWB User Manual provides all the information specific to the
application. All general software functions and settings common to all applications
and operating modes are described in the R&S VSE Base Software User Manual.
The main focus in this manual is on the measurement results and the tasks required to
obtain them. The following topics are included:
●Welcome to the R&S VSE HRP UWB application
Introduction to and getting familiar with the application
●Measurements and Result Displays
Details on supported measurements and their result types
●Configuration + Analysis
A concise description of all functions and settings available to configure measure-
ments and analyze results with their corresponding remote control command
●How to Perform Measurements in the R&S VSE HRP UWB application
The basic procedure to perform each measurement and step-by-step instructions
for more complex tasks or alternative methods
●Remote Commands for R&S VSE HRP UWB application Measurements
Remote commands required to configure and perform R&S VSE HRP UWB appli-
cation measurements in a remote environment, sorted by tasks
(Commands required to set up the environment or to perform common tasks in the
software are provided in the R&S VSE Base Software User Manual)
Programming examples demonstrate the use of many commands and can usually
be executed directly for test purposes
●List of remote commands
Alphabetical list of all remote commands described in the manual
●Index
1.2 Conventions Used in the Documentation
1.2.1 Typographical Conventions
The following text markers are used throughout this documentation:
Conventions Used in the Documentation

Preface
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Convention Description
"Graphical user interface ele-
ments"
All names of graphical user interface elements on the screen, such as
dialog boxes, menus, options, buttons, and softkeys are enclosed by
quotation marks.
[Keys] Key and knob names are enclosed by square brackets.
Filenames, commands,
program code
Filenames, commands, coding samples and screen output are distin-
guished by their font.
Input Input to be entered by the user is displayed in italics.
Links Links that you can click are displayed in blue font.
"References" References to other parts of the documentation are enclosed by quota-
tion marks.
1.2.2 Conventions for Procedure Descriptions
When operating the instrument, several alternative methods may be available to per-
form the same task. In this case, the procedure using the touchscreen is described.
Any elements that can be activated by touching can also be clicked using an addition-
ally connected mouse. The alternative procedure using the keys on the instrument or
the on-screen keyboard is only described if it deviates from the standard operating pro-
cedures.
The term "select" may refer to any of the described methods, i.e. using a finger on the
touchscreen, a mouse pointer in the display, or a key on the instrument or on a key-
board.
1.2.3 Notes on Screenshots
When describing the functions of the product, we use sample screenshots. These
screenshots are meant to illustrate as many as possible of the provided functions and
possible interdependencies between parameters. The shown values may not represent
realistic usage scenarios.
The screenshots usually show a fully equipped product, that is: with all options instal-
led. Thus, some functions shown in the screenshots may not be available in your par-
ticular product configuration.
Conventions Used in the Documentation

Welcome to the HRP UWB Application
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2 Welcome to the HRP UWB Application
The R&S VSE-K149 is a firmware application that adds functionality to perform High
Rate Pulse Repetition Frequency (HRP) Ultrawideband (UWB) measurements with the
R&S VSE.
The R&S VSE HRP UWB application features:
●Analysis of High Rate Pulse Repetition Frequency (HRP) Ultrawideband (UWB)
signals
●Time of flight (TOF) measurements
●Spectrum analysis
●Pulse mask analysis
●In Depth packet insights
This user manual contains a description of the functionality that the application pro-
vides, including remote control operation.
Functions that are not discussed in this manual are the same as in the spectrum appli-
cation and are described in the R&S VSE User Manual. The latest version is available
for download at the product homepage.
2.1 Starting the HRP UWB Application
Ultrawideband measurements require a separate application on the R&S VSE. It is
activated by creating a new measurement channel in HRP UWB mode.
To activate the HRP UWB application
1.
Select the "Add Channel" function in the Sequence tool window.
A dialog box opens that contains all operating modes and applications currently
available in your R&S VSE.
2. Select the "HRP UWB" item.
The R&S VSE opens a new measurement channel for the R&S VSE HRP UWB
application.
Starting the HRP UWB Application

Welcome to the HRP UWB Application
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2.2 Understanding the Display Information
The following figure shows a measurement diagram during analyzer operation. All dif-
ferent information areas are labeled. They are explained in more detail in the following
sections.
1 2 3 4
1 = Channel bar for firmware and measurement settings
2 = Window title bar with diagram-specific (trace) information
3 = Diagram area
4 = Diagram footer with diagram-specific information
Channel bar information
In the R&S VSE HRP UWB application, the R&S VSE shows the following settings:
Table 2-1: Information displayed in the channel bar in the HRP UWB application
Ref Level Reference level
Att RF attenuation
Freq Center frequency for the RF signal
Capture Time Measurement time (data acquisition time)
Rec Length Record length
SRate Sample rate
ABW Analysis Bandwidth
Channel Measurement Channel
In addition, the channel bar also displays information on instrument settings that affect
the measurement results even though this is not immediately apparent from the display
Understanding the Display Information

Welcome to the HRP UWB Application
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of the measured values (e.g. transducer or trigger settings). This information is dis-
played only when applicable for the current measurement. For details see the
R&S VSE Base Software User Manual.
Window title bar information
For each diagram, the header provides the following information:
1235
4
Figure 2-1: Window title bar information in the R&S VSE HRP UWB application
1 = Window number
2 = Window type
3 = Trace color
4 = Trace number
5 = Trace mode
Status bar information
The software status, errors and warnings and any irregularities in the software are indi-
cated in the status bar at the bottom of the R&S VSE window.
Understanding the Display Information

Measurements and Result Displays
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3 Measurements and Result Displays
The data that was measured by the R&S VSE can be evaluated using various different
methods.
All results are determined from the I/Q data set captured for the measurement.
Storing Results
The results of the HRP UWB measurement can be stored to a file in ASCII format.
●Evaluation Methods for HRP UWB......................................................................... 10
3.1 Evaluation Methods for HRP UWB
The following evaluation methods can be selected for HRP UWB measurements.
Chip Phase Jitter...........................................................................................................10
Chip Time Jitter............................................................................................................. 11
Correlated Pulse............................................................................................................11
Magnitude Capture........................................................................................................12
Marker Table................................................................................................................. 12
Packet Insights..............................................................................................................12
Packet Spectrum...........................................................................................................14
Pulse............................................................................................................................. 14
Result Summary............................................................................................................14
Symbol Phase Jitter...................................................................................................... 17
Symbol Time Jitter.........................................................................................................17
Chip Phase Jitter
Displays a histogram of the phase jitter of chips in SYNC section of each packet.
Evaluation Methods for HRP UWB

Measurements and Result Displays
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Remote command:
LAY:ADD? '1',RIGH,CJPH
Chip Time Jitter
Displays a histogram of the time jitter of chips in SYNC section of each packet.
Remote command:
LAY:ADD? '1',RIGH,CJT
Correlated Pulse
Displays the cross correlation of the measured UWB pulse of sync section and root
raised cosine (RRC) pulse defined in IEEE 802.15.4-2020.
Remote command:
LAY:ADD? '1',RIGH,XCOR
Evaluation Methods for HRP UWB

Measurements and Result Displays
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Magnitude Capture
Displays the magnitude capture using a trace with "Positive Peak" detector. There are
different different methods to configure packet detection. See Chapter 4.5, "Burst/
Sync", on page 38 for further details.
Remote command:
LAY:ADD? '1',RIGH,MCAP
Marker Table
Displays a table with the current marker values for the active markers.
This table is displayed automatically if configured accordingly.
Tip: To navigate within long marker tables, simply scroll through the entries with your
finger on the touchscreen.
Remote command:
LAY:ADD? '1',RIGH, MTAB
Packet Insights
Displays the values from the "Selected Packet" or the values of "All Packets": For all
packets in statistics, the values are “Identical” or “Mixed”. "Identical" means that the
packets have the same value (displayed in the Sel Packet column), whereas "Mixed"
indicates different values.
Evaluation Methods for HRP UWB

Measurements and Result Displays
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Table 3-1: Displayed values
SYNC
Code Index Code index
Code Length Corresponding code length
Delta Length Delta length
Sync Length Number of analyzed symbols in SYNC section of the
packet. May be less than in sent signal due to set-
tling time
Data
Data Rate [Mb/s] Bit rate according to IEEE 802.15.4-2020 (Table
15-3) and IEEE 802.15.4z-2020 (Table 15-9a and
Table 15-10b)
Length [Octets] Length of payload in octets
Ranging Bit Ranging bit set or not
SECDEC SECDEC pass or fail
Constraint Length HPRF mode: CL3 or CL7
A0A1 HPRF mode:
HPRF payload size max 1023: Values of A0A1
HPRF payload size max 2047: Value of A1
HPRF payload size max 4095: No A0 and A0 availa-
ble
Remote command:
LAY:ADD? '1',RIGH,PINS
Querying payload content: FETCh<n>:PACKet:DATA:PAYLoad? on page 56
Retrieving results see Chapter 6.5.1, "Packet Insights", on page 54
Evaluation Methods for HRP UWB

Measurements and Result Displays
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Packet Spectrum
Displays the spectrum of the selected packet. Limit Lines are defined in Transmit
Power Spectral Density (IEEE 802.15.4-2020, Section 15.4.5). The limits are checked
only against the selected packet.
Remote command:
LAY:ADD? '1',RIGH,PSP
Pulse
Displays the pulse of the SYNC section of an UWB packet. Limit lines are set accord-
ing to FIRA UWB PHY Technical Requirements v1.2, Section 5.2.5. The limits are
checked only against the selected packet.
Remote command:
LAY:ADD? '1',RIGH,PULS
Result Summary
Displays various measurement results in numerical form, combined in one table.
Evaluation Methods for HRP UWB

Measurements and Result Displays
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Table 3-2: Displayed values
Frequency
Center Frequency Offset [Hz] Estimated frequency offset of the SYNC section.
>0 => DUT has higher frequency than analyzer
Center Frequency Offset [ppm] Estimated frequency offset of the SYNC section rel-
ative to carrier frequency.
>0 => DUT has higher CLK frequency than analyzer
Chip Clock Error [ppm] Estimated chip clock frequency error of the SYNC
section.
Evaluation Methods for HRP UWB

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Jitter
Symbol Time Jitter RMS [ps] RMS of the time jitter of symbols of the SYNC sec-
tion
Chip Time Jitter RMS [ps] RMS of the time jitter of chips of the SYNC section
Correlated Pulse Cross correlation of measured UWB pulse and root
raised cosine (RRC) pulse defined in IEEE
802.15.4-2020
Pulse NMSE [dB] NMSE of the correlated pulse
Main Lobe Peak [%] Amplitude of the main lobe peak
Main Lobe Width [ns] Main lobe width of pulse at 80%
Main Lobe Min Width [ns] Required minimum width of main lobe according to
IEEE 802.15.4-2020 (Table 15-12)
Main Lobe Width Passed Passed if main lobe width is above minimum main
lobe width
Side Lobe Peak Location [ns] Location of side lobe peak relative to main lobe
peak
Side Lobe Peak [%] Amplitude of side lobe peak
Side Lobe Peak Passed Passed if side lobe peak is below 30%
Pulse FIRA UWB PHY Technical Requirements v1.2 RC2
Pulse Mask Passed if time domain pulse meets mask
Pulse Rise Monotonic Passed if time domain pulse rises monotonically
EVM FIRA UWB PHY Technical Requirements v1.2 RC2
SHR NRMSE [%] NRMSE of SHR section
PHR NRMSE [%] NRMSE of PHR section
PSDU NRMSE [%] NRMSE of PSDU section
STS NRMSE [%] NRMSE of STS section
PHR Pulse Level [dB] Pulse level of PHR section relative to SHR section
PSDU Pulse Level [dB] Pulse level of PSDU section relative to SHR section
STS Pulse Level [dB] Pulse level of STS section relative to SHR section
Power
SHR Mean [dBm] Mean Power of SHR section
SHR Peak [dBm] Peak Power of SHR section
PSDU Mean [dBm] Mean Power of PSDU section
PSDU Peak [dBm] Peak Power of PSDU section
Spectrum Transmit Power Spectral Density defined in IEEE
802.15.4-2020, Section 15.4.5
Max Spectral Power [dBm / MHz] Maximum Spectral Power Density
Evaluation Methods for HRP UWB

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Spectrum Mask Passed Passed if transmit PSD mask limits are met
Ranging
RMarker [ps] Ranging marker position defined in IEEE
802.15.4-2020 and IEEE 802.15.4z-2020, relative to
capture buffer
To estimate the time difference between several
captured packets, the RMarker can be evaluated.
For each result type, several values are displayed.
●Sel packet
Values measured for the selected packet.
●Average
Average value measured over all packets.
●Min
Lowest value measured over all packets.
●Max
Highest value measured over all packets.
Remote command:
LAY:ADD? '1',RIGH,RSUM
Retrieving results see Chapter 6.5.2, "Result Summary", on page 59
Symbol Phase Jitter
Displays a histogram of the phase jitter of symbols in SYNC section of each packet.
Remote command:
LAY:ADD? '1',RIGH,SJPH
Symbol Time Jitter
Displays a histogram of the time jitter of symbols in SYNC section of each packet.
Evaluation Methods for HRP UWB

Measurements and Result Displays
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Remote command:
LAY:ADD? '1',RIGH,SJT
Evaluation Methods for HRP UWB

Configuration
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4 Configuration
●Configuration Overview...........................................................................................19
●Input and Frontend Settings....................................................................................20
●Trigger Settings.......................................................................................................33
●Data Acquisition...................................................................................................... 36
●Burst/Sync...............................................................................................................38
●Demodulation..........................................................................................................39
●Evaluation Range....................................................................................................40
4.1 Configuration Overview
Throughout the measurement channel configuration, an overview of the most important
currently defined settings is provided in the "Overview".
The "Overview" is displayed when you select the "Overview" icon, which is available in
the Meas Setup menu.
In addition to the main measurement settings, the "Overview" provides quick access to
the main settings dialog boxes. The individual configuration steps are displayed in the
order of the data flow. Thus, you can easily configure an entire measurement channel
from input over processing to output and analysis by stepping through the dialog boxes
as indicated in the "Overview".
To configure settings
► Select any button in the "Overview" to open the corresponding dialog box.
Configuration Overview

Configuration
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Preset Channel
Select the "Preset Channel" button in the lower left-hand corner of the "Overview" to
restore all measurement settings in the current channel to their default values.
Remote command:
SYSTem:PRESet:CHANnel[:EXEC] on page 53
4.2 Input and Frontend Settings
Access: "Overview" > "Input/Frontend"
The R&S VSE can evaluate signals from different input sources and provide various
types of output (such as trigger signals).
The frequency and amplitude settings represent the "frontend" of the measurement
setup.
●Input Source Settings..............................................................................................20
●Frequency Settings................................................................................................. 28
●Amplitude Settings.................................................................................................. 29
4.2.1 Input Source Settings
Access: "Overview" > "Input/Frontend" > "Input Source"
Or: "Input & Output" > "Input Source"
The R&S VSE can control the input sources of the connected instruments.
●Radio Frequency Input............................................................................................20
●I/Q File Input............................................................................................................26
4.2.1.1 Radio Frequency Input
Or: "Input & Output" > "Input Source" > "Radio Frequency"
The default input source for the connected instrument is "Radio Frequency". Depend-
ing on the connected instrument, different input parameters are available.
Input and Frontend Settings