R&S® FSV-K73
Firmware Option 3GPP FDD UE
Measurement
Operating Manual
(;ÚÙè2)
1176.7590.02 ─ 03.1
Operating Manual
Test & Measurement
This manual describes the following options:
●
R&S FSV-K73 (1310.8555.02)
The contents of this manual correspond to the following R&S®FSVR models with firmware version 2.23 or
higher:
●
R&S®FSVR7 (1311.0006K7)
●
R&S®FSVR13 (1311.0006K13)
●
R&S®FSVR30 (1311.0006K30)
●
R&S®FSVR40 (1311.0006K40)
The software contained in this product makes use of several valuable open source software packages. For information, see the
"Open Source Acknowledgement" on the user documentation CD-ROM (included in delivery).
Rohde & Schwarz would like to thank the open source community for their valuable contribution to embedded computing.
© 2015 Rohde & Schwarz GmbH & Co. KG
Mühldorfstr. 15, 81671 München, Germany
Phone: +49 89 41 29 - 0
Fax: +49 89 41 29 12 164
Email: info@rohde-schwarz.com
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.
The following abbreviations are used throughout this manual: R&S®FSV is abbreviated as R&S FSV. R&S®FSVR is abbreviated as
R&S FSVR.
R&S® FSV-K73
1 Preface.................................................................................................... 5
1.1 Documentation Overview............................................................................................. 5
1.2 Conventions Used in the Documentation...................................................................7
1.3 How to Use the Help System........................................................................................8
2 Introduction.......................................................................................... 10
3 Measurement Examples (R&S FSV–K73)...........................................11
3.1 Measurement 1: Measurement of the Signal Channel Power................................. 12
3.2 Measurement 2: Measurement of the Spectrum Emission Mask........................... 13
3.3 Measurement 3: Measurement of the Relative Code Domain Power..................... 14
3.4 Measurement 4: Triggered Measurement of Relative Code Domain Power..........16
Contents
Contents
3.5 Measurement 5: Measurement of the Composite EVM........................................... 17
3.6 Measurement 6: Measurement of Peak Code Domain Error...................................18
4 Setup for User Equipment Tests........................................................ 20
5 3GPP FDD UE Test Models................................................................. 22
6 Instrument Functions 3GPP User Equipment Measurements......... 24
6.1 Menu and Softkey Description for CDA Measurements..........................................24
6.2 Measurements and Result Diagrams........................................................................ 24
6.3 Working with the Frequency Mask Trigger...............................................................26
6.4 Further Information.....................................................................................................30
7 Configuration of 3GPP FDD UE Measurements................................ 38
7.1 Code Domain Analyzer Measurements (K73)...........................................................39
7.2 RF Measurements....................................................................................................... 82
8 Remote Control Commands (R&S FSV–K73).................................. 108
8.1 Notation......................................................................................................................109
8.2 CALCulate subsystem (R&S FSV–K73).................................................................. 111
8.3 CONFigure:WCDPower subsystem (R&S FSV-K73).............................................. 164
8.4 INSTrument subsystem............................................................................................ 169
8.5 SENSe subsystem (R&S FSV-K73)..........................................................................170
8.6 STATus:QUEStionable subsystem (R&S FSV-K73)...............................................195
3Operating Manual 1176.7590.02 ─ 03.1
R&S® FSV-K73
8.7 TRACe subsystem (R&S FSV-K73)..........................................................................196
8.8 Other Commands Referenced in this Manual........................................................ 206
9 Error Messages.................................................................................. 227
10 Glossary..............................................................................................228
Contents
List of Commands..............................................................................229
Index....................................................................................................234
4Operating Manual 1176.7590.02 ─ 03.1
R&S® FSV-K73
1 Preface
Preface
Documentation Overview
1.1 Documentation Overview
The user documentation for the R&S FSVR is divided as follows:
●
Quick Start Guide
●
Operating Manuals for base unit and options
●
Service Manual
●
Online Help
●
Release Notes
Quick Start Guide
This manual is delivered with the instrument in printed form and in PDF format on the
CD. It provides the information needed to set up and start working with the instrument.
Basic operations and basic measurements are described. Also a brief introduction to
remote control is given. The manual includes general information (e.g. Safety Instructions) and the following chapters:
Chapter 1 Introduction, General information
Chapter 2 Front and Rear Panel
Chapter 3 Preparing for Use
Chapter 4 Firmware Update and Installation of Firmware Options
Chapter 5 Basic Operations
Chapter 6 Basic Measurement Examples
Chapter 7 Brief Introduction to Remote Control
Appendix Printer Interface
Appendix LAN Interface
Operating Manuals
The Operating Manuals are a supplement to the Quick Start Guide. Operating Manuals
are provided for the base unit and each additional (software) option.
The Operating Manual for the base unit provides basic information on operating the
R&S FSVR in general, and the "Spectrum" mode in particular. Furthermore, the software options that enhance the basic functionality for various measurement modes are
described here. The set of measurement examples in the Quick Start Guide is expanded by more advanced measurement examples. In addition to the brief introduction to
remote control in the Quick Start Guide, a description of the basic analyzer commands
and programming examples is given. Information on maintenance, instrument interfaces and error messages is also provided.
5Operating Manual 1176.7590.02 ─ 03.1
R&S® FSV-K73
Preface
Documentation Overview
In the individual option manuals, the specific instrument functions of the option are
described in detail. For additional information on default settings and parameters, refer
to the data sheets. Basic information on operating the R&S FSVR is not included in the
option manuals.
The following Operating Manuals are available for the R&S FSVR:
●
R&S FSVR base unit; in addition:
– R&S FSV-K7S Stereo FM Measurements
– R&S FSV-K9 Power Sensor Support
– R&S FSV-K14 Spectrogram Measurement
●
R&S FSV-K10 GSM/EDGE Measurement
●
R&S FSV-K30 Noise Figure Measurement
●
R&S FSV-K40 Phase Noise Measurement
●
R&S FSV-K70 Vector Signal Analysis Operating Manual
R&S FSV-K70 Vector Signal Analysis Getting Started (First measurements)
●
R&S FSV-K72 3GPP FDD BTS Analysis
●
R&S FSV-K73 3GPP FDD UE Analysis
●
R&S FSV-K76/77 3GPP TD-SCDMA BTS/UE Measurement
●
R&S FSV-K82/83 CDMA2000 BTS/MS Analysis
●
R&S FSV-K84/85 1xEV-DO BTS/MS Analysis
●
R&S FSV-K91 WLAN IEEE 802.11
●
R&S FSV-K93 WiMAX IEEE 802.16 OFDM/OFDMA Analysis
●
R&S FSV-K100/K104 EUTRA / LTE Downlink Measurement Application
●
R&S FSV-K101/K105 EUTRA / LTE Uplink Measurement Application
These manuals are available in PDF format on the CD delivered with the instrument.
Service Manual
This manual is available in PDF format on the CD delivered with the instrument. It
describes how to check compliance with rated specifications, instrument function,
repair, troubleshooting and fault elimination. It contains all information required for
repairing the R&S FSVR by replacing modules. The manual includes the following
chapters:
Chapter 1 Performance Test
Chapter 2 Adjustment
Chapter 3 Repair
Chapter 4 Software Update / Installing Options
Chapter 5 Documents
Online Help
The online help contains context-specific help on operating the R&S FSVR and all
available options. It describes both manual and remote operation. The online help is
6Operating Manual 1176.7590.02 ─ 03.1
R&S® FSV-K73
Preface
Conventions Used in the Documentation
installed on the R&S FSVR by default, and is also available as an executable .chm file
on the CD delivered with the instrument.
Release Notes
The release notes describe the installation of the firmware, new and modified functions, eliminated problems, and last minute changes to the documentation. The corresponding firmware version is indicated on the title page of the release notes. The current release notes are provided in the Internet.
1.2 Conventions Used in the Documentation
1.2.1 Typographical Conventions
The following text markers are used throughout this documentation:
Convention Description
"Graphical user interface elements"
KEYS Key names are written in capital letters.
File names, commands,
program code
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-
All names of graphical user interface elements on the screen, such as
dialog boxes, menus, options, buttons, and softkeys are enclosed by
quotation marks.
File names, commands, coding samples and screen output are distinguished by their font.
tion marks.
1.2.2 Conventions for Procedure Descriptions
When describing how to operate the instrument, several alternative methods may be
available to perform 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 additionally 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 procedures.
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 keyboard.
7Operating Manual 1176.7590.02 ─ 03.1
R&S® FSV-K73
Preface
How to Use the Help System
1.2.3 Notes on Screenshots
When describing the functions of the product, we use sample screenshots. These
screenshots are meant to illustrate as much as possible of the provided functions and
possible interdependencies between parameters.
The screenshots usually show a fully equipped product, that is: with all options installed. Thus, some functions shown in the screenshots may not be available in your particular product configuration.
1.3 How to Use the Help System
Calling context-sensitive and general help
► To display the general help dialog box, press the HELP key on the front panel.
The help dialog box "View" tab is displayed. A topic containing information about
the current menu or the currently opened dialog box and its function is displayed.
For standard Windows dialog boxes (e.g. File Properties, Print dialog etc.), no contextsensitive help is available.
► If the help is already displayed, press the softkey for which you want to display
help.
A topic containing information about the softkey and its function is displayed.
If a softkey opens a submenu and you press the softkey a second time, the submenu
of the softkey is displayed.
Contents of the help dialog box
The help dialog box contains four tabs:
●
"Contents" - contains a table of help contents
●
"View" - contains a specific help topic
●
"Index" - contains index entries to search for help topics
●
"Zoom" - contains zoom functions for the help display
To change between these tabs, press the tab on the touchscreen.
Navigating in the table of contents
●
To move through the displayed contents entries, use the UP ARROW and DOWN
ARROW keys. Entries that contain further entries are marked with a plus sign.
●
To display a help topic, press the ENTER key. The "View" tab with the corresponding help topic is displayed.
8Operating Manual 1176.7590.02 ─ 03.1
R&S® FSV-K73
Preface
How to Use the Help System
●
To change to the next tab, press the tab on the touchscreen.
Navigating in the help topics
●
To scroll through a page, use the rotary knob or the UP ARROW and DOWN
ARROW keys.
●
To jump to the linked topic, press the link text on the touchscreen.
Searching for a topic
1. Change to the "Index" tab.
2. Enter the first characters of the topic you are interested in. The entries starting with
these characters are displayed.
3. Change the focus by pressing the ENTER key.
4. Select the suitable keyword by using the UP ARROW or DOWN ARROW keys or
the rotary knob.
5. Press the ENTER key to display the help topic.
The "View" tab with the corresponding help topic is displayed.
Changing the zoom
1. Change to the "Zoom" tab.
2. Set the zoom using the rotary knob. Four settings are available: 1-4. The smallest
size is selected by number 1, the largest size is selected by number 4.
Closing the help window
► Press the ESC key or a function key on the front panel.
9Operating Manual 1176.7590.02 ─ 03.1
R&S® FSV-K73
2 Introduction
Introduction
This section contains all information required for operation of an R&S FSVR equipped
with Application Firmware R&S FSV–K73. It covers operation via menus and the
remote control commands for the 3GPP FDD UE user equipment test.
This part of the documentation consists of the following chapters:
●
chapter 3, "Measurement Examples (R&S FSV–K73)", on page 11
Explains some basic 3GPP°FDD user equipment tests.
●
chapter 4, "Setup for User Equipment Tests", on page 20
Describes the measurement setup for user equipment tests.
●
chapter 5, "3GPP FDD UE Test Models", on page 22
Gives an overview over the test models with different channel configurations.
●
chapter 6, "Instrument Functions 3GPP User Equipment Measurements",
on page 24
Describes the instrument functions of 3GPP user equipment measurements
●
chapter 7, "Configuration of 3GPP FDD UE Measurements", on page 38
Contains a detailed description of the possible user equipment test measurements
as a reference for manual operation. This chapter also presents a list of remote
control commands associated with each function.
●
chapter 8, "Remote Control Commands (R&S FSV–K73)", on page 108
Describes all remote control commands defined for the code domain measurement. An alphabetic list of all remote control commands are provided at the end of
this document.
●
chapter 9, "Error Messages", on page 227
Contains device-specific error messages for R&S FSV–K73.
●
chapter 10, "Glossary", on page 228
Contains an explanation of terms related to measured quantities of the code
domain measurement.
This part of the documentation includes only functions of the firmware application
R&S FSV-K73. For all other descriptions, please refer to the description of the base
unit at the beginning of the documentation.
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R&S® FSV-K73
3 Measurement Examples (R&S FSV–K73)
Measurement Examples (R&S FSV–K73)
This chapter gives an overview of the "Basic Settings in Code Domain Measurement
Mode" and explains some basic 3GPP°FDD user equipment tests. It describes how
operating and measurement errors can be avoided using correct presetting. The measurements are performed with an R&S FSVR equipped with option R&S FSV–K73.
Key settings are shown as examples to avoid measurement errors. Following the correct setting, the effect of an incorrect setting is shown.
The following measurements are performed:
●
chapter 3.1, "Measurement 1: Measurement of the Signal Channel Power",
on page 12
●
chapter 3.2, "Measurement 2: Measurement of the Spectrum Emission Mask",
on page 13
●
chapter 3.3, "Measurement 3: Measurement of the Relative Code Domain Power",
on page 14
●
chapter 3.4, "Measurement 4: Triggered Measurement of Relative Code Domain
Power", on page 16
●
chapter 3.5, "Measurement 5: Measurement of the Composite EVM", on page 17
●
chapter 3.6, "Measurement 6: Measurement of Peak Code Domain Error",
on page 18
The measurements are performed using the following units and accessories:
●
The R&S FSVR with Application Firmware R&S FSV–K73: 3GPP FDD UE user
equipment test
●
The Vector Signal Generator R&S SMU with option R&S SMU-B45: digital standard 3GPP (options R&S SMU-B20 and R&S SMU-B11 required)
●
1 coaxial cable, 50Ω, approx. 1 m, N connector
●
1 coaxial cable, 50Ω, approx. 1 m, BNC connector
Basic Settings in Code Domain Measurement Mode
In the default mode after a PRESET, the R&S FSVR is in the analyzer mode. The following default settings of the code domain measurement are activated provided that
the code domain analyzer mode is selected.
Parameter Setting
Digital standard W-CDMA 3GPP REV
Sweep CONTINUOUS
CDP mode CODE CHAN AUTOSEARCH
Trigger settings FREE RUN
Trigger offset 0
Scrambling code 0
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R&S® FSV-K73
Measurement Examples (R&S FSV–K73)
Measurement 1: Measurement of the Signal Channel Power
Parameter Setting
Threshold value -60 dB
Symbol rate 15 ksps
Code number 0
Slot number 0
Display Screen A: Code Power Relative
Screen B: result Summary
3.1 Measurement 1: Measurement of the Signal Channel Power
The measurement of the spectrum gives an overview of the 3GPP FDD UE signal and
the spurious emissions close to the carrier.
1. Test setup
Connect the RF output of the R&S SMU to the RF input of the R&S FSVR (coaxial
cable with N connectors).
2. Settings on the R&S SMU
[PRESET]
[LEVEL: 0 dBm]
[FREQ: 2.1175 GHz]
DIGITAL STD
a) WCDMA/3GPP
b) SET DEFAULT
c) LINK DIRECTION: UP/REVERSE
d) TEST MODELS (NOT STANDARDIZED)...
e) C+D960K
f) STATE: ON
3. Settings on the R&S FSVR
[PRESET]
[CENTER: 2.1175 GHz]
[AMPT: 0 dBm]
[MODE: 3GPP FDD UE]
[MEAS: POWER]
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R&S® FSV-K73
Measurement Examples (R&S FSV–K73)
Measurement 2: Measurement of the Spectrum Emission Mask
3.2 Measurement 2: Measurement of the Spectrum Emission Mask
The 3GPP specification defines a measurement, which monitors the compliance with a
spectral mask in a range of at least ±12.5 MHz about the 3GPP FDD UE carrier. To
assess the power emissions in the specified range, the signal power is measured in
the range near the carrier by means of a 30kHz filter, in the ranges far off the carrier by
means of a 1MHz filter. The resulting trace is compared to a limit line defined in the
3GPP specification.
1. Test setup
Connect the RF output of the R&S SMU to the RF input of the R&S FSVR (coaxial
cable with N connectors).
2. Settings on the R&S SMU
[PRESET]
[LEVEL: 0 dBm]
[FREQ: 2.1175 GHz]
DIGITAL STD
a) WCDMA/3GPP
b) SET DEFAULT
c) LINK DIRECTION: UP/REVERSE
d) TEST MODELS (NOT STANDARDIZED)...
e) C+D960K
f) STATE: ON
3. Settings on the R&S FSVR
[PRESET]
[CENTER: 2.1175 GHz]
[AMPT: 0 dBm]
[MODE: 3GPP FDD UE]
[MEAS: Spectrum Emission Mask]
4. Measurement on the R&S FSVR
The following is displayed:
●
Spectrum of the 3GPP FDD UE signal
●
Limit line defined in the standard
●
Information on limit line violations (passed/failed)
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R&S® FSV-K73
Measurement Examples (R&S FSV–K73)
Measurement 3: Measurement of the Relative Code Domain Power
3.3 Measurement 3: Measurement of the Relative Code Domain Power
A code domain power measurement on one of the channel configurations is shown in
the following. Basic parameters of CDP analysis are changed to demonstrate the
effects of non-signal-adapted values.
1. Test setup
Connect the reference input (EXT REF IN/OUT) on the rear panel of the analyzer
to the reference output (REF) on the rear panel of R&S SMU (coaxial cable with
BNC connectors).
2. Settings on the R&S SMU
See chapter 3.2, "Measurement 2: Measurement of the Spectrum Emission Mask",
on page 13
3. Settings on the R&S FSVR
See chapter 3.2, "Measurement 2: Measurement of the Spectrum Emission Mask",
on page 13; in addition:
SETUP: REFERENCE EXT
4. Measurement on the R&S FSVR
Frequency error: The displayed frequency error should be < 10 Hz
Setting: Synchronization of the Reference Frequencies
Synchronization of the reference oscillators both of the DUT and the analyzer strongly
reduces the measured frequency error.
1. Test setup
Connect the reference input (EXT REF IN/OUT) on the rear panel of the analyzer
to the reference output (REF) on the rear panel of the R&S SMU (coaxial cable
with BNC connectors).
2. Settings on the R&S SMU
See chapter 3.2, "Measurement 2: Measurement of the Spectrum Emission Mask",
on page 13
3. Settings on the R&S FSVR
See chapter 3.2, "Measurement 2: Measurement of the Spectrum Emission Mask",
on page 13; in addition:
SETUP: REFERENCE EXT
4. Measurement on the R&S FSVR
The displayed frequency error should be < 10 Hz
Note
The reference frequencies of the analyzer and of the DUT should be synchronized.
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R&S® FSV-K73
Measurement Examples (R&S FSV–K73)
Measurement 3: Measurement of the Relative Code Domain Power
Setting: Behaviour with Deviating Center Frequency Setting
In the following, the behaviour of the DUT and the analyzer with an incorrect center frequency setting is shown.
1. Test setup
Tune the center frequency of the signal generator in 0.5 kHz steps and watch the
analyzer screen:
2. Measurement on the R&S FSVR
a) A CDP measurement on the analyzer is still possible with a frequency error of
up to approx. 1 kHz. Up to 1 kHz, a frequency error causes no apparent difference in measurement accuracy of the code domain power measurement.
b) Above a frequency error of 1 kHz, the probability of an impaired synchroniza-
tion increases. With continuous measurements, at times all channels are displayed in blue with almost the same level.
c) Above a frequency error of approx. 2 kHz, a CDP measurement cannot be per-
formed. The R&S FSVR displays all possible codes in blue with a similar level.
3. Settings on the R&S SMU
FREQ: 2.1175 GHz
a) Set the signal generator center frequency to 2.1175 GHz again:
FREQ: 2.1175 GHz
Note
The analyzer center frequency should not differ from the DUT frequency by more than
2 kHz.
Setting: Behaviour with Incorrect Scrambling Code
A valid CDP measurement can be carried out only if the scrambling code set on the
analyzer is identical to that of the transmitted signal.
1. Test setup
SELECT BS/MS
BS 1: ON
SCRAMBLING CODE: 0001
(The scrambling code is set to 0000 on the analyzer.)
2. Settings on the R&S SMU
The CDP display shows all possible codes with approximately the same level.
3. Settings on the R&S FSVR
Set scrambling code to new value.
[MEAS CONFIG]
[Sync/Scrambling Settings]
[Scrambling Code 01]
4. Measurement on the R&S FSVR
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R&S® FSV-K73
Measurement Examples (R&S FSV–K73)
Measurement 4: Triggered Measurement of Relative Code Domain Power
The CDP display shows the test model again.
Note
The scrambling code setting of the analyzer must be identical to that of the measured
signal.
3.4 Measurement 4: Triggered Measurement of Relative Code Domain Power
If the code domain power measurement is performed without external triggering, a section of approximately 20 ms of the test signal is recorded at an arbitrary moment to
detect the start of a 3GPP FDD UE frame in this section. Depending on the position of
the frame start, the required computing time can be quite long. Applying an external
(frame) trigger can reduce the computing time.
1. Test setup
a) Connect the RF output of the R&S SMU to the input of the R&S FSVR.
b) Connect the reference input (EXT REF IN/OUT) on the rear panel of the
R&S FSVR to the reference input (REF) on the rear panel of the R&S SMU
(coaxial cable with BNC connectors).
c) Connect the external trigger input on the rear panel of the R&S FSVR (EXT
TRIG GATE) to the external trigger output on the rear panel of the R&S SMU
(TRIGOUT1 of PAR DATA).
2. Settings on the R&S SMU
See chapter 3.3, "Measurement 3: Measurement of the Relative Code Domain
Power", on page 14
3. Settings on the R&S FSVR
See chapter 3.3, "Measurement 3: Measurement of the Relative Code Domain
Power", on page 14
In addition:
[TRIG EXTERN]
4. Measurement on the R&S FSVR
The following is displayed:
●
Screen A: Code domain power of signal (channel configuration with 3 data channels on Q branch)
●
Screen B: Numeric results of CDP measurement
●
Trigger to Frame: Offset between trigger event and start of 3GPP FDD UE frame
The repetition rate of the measurement increases considerably compared to the repetition rate of a measurement without an external trigger.
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R&S® FSV-K73
Measurement Examples (R&S FSV–K73)
Measurement 5: Measurement of the Composite EVM
Setting: Trigger Offset
A delay of the trigger event referenced to the start of the 3GPP FDD UE frame can be
compensated by modifying the trigger offset.
1. Settings on the R&S FSVR:
[TRIG] -> [TRIGGER OFFSET] -> 100 µs
2. Measurement on the R&S FSVR:
The Trigger to Frame parameter in the numeric results table (screen B) changes:
Trigger to Frame -> -100 µs
Note
A trigger offset compensates analog delays of the trigger event.
3.5 Measurement 5: Measurement of the Composite EVM
The 3GPP specification defines the composite EVM measurement as the average
square deviation of the total signal:
An ideal reference signal is generated from the demodulated data. The test signal and
the reference signal are compared with each other. The square deviation yields the
composite EVM.
1. Test setup
a) Connect the RF output of the R&S SMU to the input of the R&S FSVR.
b) Connect the reference input (EXT REF IN/OUT) on the rear panel of the
R&S FSVR to the reference input (REF) on the rear panel of the R&S SMU
(coaxial cable with BNC connectors).
c) Connect the external trigger input on the rear panel of the R&S FSVR (EXT
TRIG GATE) to the external trigger output on the rear panel of the R&S SMU
(TRIGOUT1 of PAR DATA).
2. Settings on the R&S SMU
[PRESET]
[LEVEL: 0 dBm]
[FREQ: 2.1175 GHz]
a) DIGITAL STD
b) LINK DIRECTION: UP/REVERSE
c) TEST MODELS (NOT STANDARDIZED)...
d) C+D960K
e) SELECT BS/MS
f) MS 1 ON
g) OVERALL SYMBOL RATE... 6*960
h) STATE: ON
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R&S® FSV-K73
Measurement Examples (R&S FSV–K73)
Measurement 6: Measurement of Peak Code Domain Error
3. Settings on the R&S FSVR
[PRESET]
[CENTER: 2.1175 GHz]
[REF: 10 dBm]
[3GPP FDD UE]
[TRIG EXTERN]
[RESULTS COMPOSITE EVM]
4. Measurement on the R&S FSVR
The following is displayed:
●
Screen A: Code domain power of signal, branch Q
●
Screen B: Composite EVM (EVM for total signal)
3.6 Measurement 6: Measurement of Peak Code Domain Error
The peak code domain error measurement is defined in the 3GPP specification for
FDD signals.
An ideal reference signal is generated from the demodulated data. The test signal and
the reference signal are compared with each other. The difference of the two signals is
projected onto the classes of the different spreading factors. The peak code domain
error measurement is obtained by summing up the symbols of each difference signal
slot and searching for the maximum error code.
1. Test setup
a) Connect the RF output of the R&S SMU to the input of the R&S FSVR.
b) Connect the reference input (EXT REF IN/OUT) on the rear panel of the
R&S FSVR to the reference input (REF) on the rear panel of the R&S SMU
(coaxial cable with BNC connectors).
c) Connect the external trigger input on the rear panel of the R&S FSVR (EXT
TRIG GATE) to the external trigger output on the rear panel of the R&S SMU
(TRIGOUT1 of PAR DATA).
2. Settings on the R&S SMU
[PRESET]
[LEVEL: 0 dBm]
[FREQ: 2.1175 GHz]
DIGITAL STD
WCDMA 3GPP
LINK DIRECTION: UP/REVERSE
TEST MODELS (NOT STANDARDIZED)...
C+D960K
SELECT BS/MS
MS 1 ON
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R&S® FSV-K73
Measurement Examples (R&S FSV–K73)
Measurement 6: Measurement of Peak Code Domain Error
OVERALL SYMBOL RATE...: 6*960
STATE: ON
3. Settings on the R&S FSVR
[PRESET]
[CENTER: 2.1175 GHz]
[REF: 0 dBm]
[3GPP FDD UE]
[TRIG: EXTERN]
[RESULTS: PEAK CODE DOMAIN ERR]
4. Measurement on the R&S FSVR
The following is displayed:
●
Screen A: Code domain power of signal, branch Q
●
Screen B: Peak code domain error (projection of error onto the class with spreading factor 256)
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4 Setup for User Equipment Tests
Setup for User Equipment Tests
Risk of instrument damage
Before switching on the instrument, make sure that the following conditions are met:
●
Instrument covers are in place and all fasteners are tightened.
●
All fan openings are unobstructed and the airflow perforations are unimpeded. The
minimum distance from the wall is 10 cm.
●
The instrument is dry and shows no sign of condensation.
●
The instrument is operated in the horizontal position on an even surface.
●
The ambient temperature does not exceed the range specified in the data sheet.
●
Signal levels at the input connectors are all within the specified ranges.
●
Signal outputs are correctly connected and are not overloaded.
Failure to meet these conditions may cause damage to the instrument or other devices
in the test setup.
This section describes how to set up the analyzer for 3GPP FDD UE user equipment
tests. As a prerequisite for starting the test, the instrument must be correctly set up and
connected to the AC power supply as described in chapter 1 of the operating manual
for the analyzer. Furthermore, application firmware module R&S FSV–K73 must be
properly installed following the instructions provided in the operating manual for the
analyzer.
Standard Test Setup
●
Connect antenna output (or TX output) of UE to RF input of the analyzer via a
power attenuator of suitable attenuation.
The following values are recommended for the external attenuator to ensure that
the RF input of the analyzer is protected and the sensitivity of the analyzer is not
reduced too much.
Max. power Recommended ext. attenuation
³55 to 60 dBm 35 to 40 dB
³50 to 55 dBm 30 to 35 dB
³45 to 50 dBm 25 to 30 dB
³40 to 45 dBm 20 to 25 dB
³35 to 40 dBm 15 to 20 dB
³30 to 35 dBm 10 to 15 dB
³25 to 30 dBm 5 to 10 dB
³20 to 25 dBm 0 to 5 dB
<20 dBm 0 dB
20Operating Manual 1176.7590.02 ─ 03.1
R&S® FSV-K73
Setup for User Equipment Tests
●
For signal measurements at the output of two-port networks, connect the reference
frequency of the signal source to the rear reference input of the analyzer (EXT REF
IN/OUT).
●
To ensure that the error limits specified by the 3GPP standard are met, the analyzer should use an external reference frequency for frequency measurements on
user equipment. For instance, a rubidium frequency standard may be used as a
reference source.
●
If the user equipment is provided with a trigger output, connect this output to the
rear trigger input of the analyzer (EXT TRIG GATE).
Presetting
●
Enter external attenuation (REF LVL OFFSET)
●
Enter reference level
●
Enter center frequency
●
Set the trigger
●
Select standard and measurement
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5 3GPP FDD UE Test Models
3GPP FDD UE Test Models
The possible channel configurations for the mobile station signal are limited by 3GPP.
Only two different configurations for data channels DPDCH are permissible according
to the specification. In addition to these two channel configurations, the HS-DPCCH
channel can be transmitted to operate the mobile station in HSDPA mode. Thus, the
R&S FSV–K73 checks for these channel configurations only during the automatic
channel search. Therefore, channels whose parameters do not correspond to one of
these configurations are not automatically detected as active channels.
The two possible channel configurations are summarized below:
Table 5-1: Channel configuration 1: DPCCH and 1 DPDCH
Channel type Number of chan-
nels
DPCCH 1 15 ksps 0 Q
DPDCH 1 15 ksps – 960
Table 5-2: Channel configuration 2: DPCCH and up to 6 DPDCH
Channel type Number of channels Symbol rate Spreading code(s) Mapping to component
DPCCH 1 15 ksps 0 Q
DPDCH 1 960 ksps 1 I
DPDCH 1 960 ksps 1 Q
DPDCH 1 960 ksps 3 I
DPDCH 1 960 ksps 3 Q
DPDCH 1 960 ksps 2 I
DPDCH 1 960 ksps 2 Q
Table 5-3: Channel configuration 3: DPCCH, up to 6 DPDCH and 1 HS-DPCCH The channel configura-
Number of
DPDCH
tion is as above in table 4-2. On HS-DPCCH is added to each channel table.
Symbol rate all DPDCH Symbol rate
Symbol rate Spreading
code(s)
[spreading-
ksps
HS-DPCCH
factor/4]
Spreading code
HS-DPCCH
Mapping to component
I
Mapping to component
(HS-DPCCH)
1 15 – 960 ksps 15 ksps 64 Q
2 1920 ksps 15 ksps 1 I
3 2880 ksps 15 ksps 32 Q
4 3840 ksps 15 ksps 1 I
5 4800 ksps 15 ksps 32 Q
6 5760 ksps 15 ksps 1 I
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R&S® FSV-K73
3GPP FDD UE Test Models
Table 5-4: Channelization code of HS-DPCCH
Nmax-dpdch (as defined in subclause 4.2.1) Channelization code C
1 C
2,4,6 C
3,5 C
ch,256,64
ch,256,1
ch,256,32
ch
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R&S® FSV-K73
6 Instrument Functions 3GPP User Equip-
Instrument Functions 3GPP User Equipment Measurements
Menu and Softkey Description for CDA Measurements
ment Measurements
The R&S FSVR equipped with the 3GPP User equipment measurement option
R&S FSV–K73 performs code domain power measurements on downlink signals
according to the 3GPP standard (Third Generation Partnership Project, FDD mode).
Signals that meet the conditions for channel configuration of 3GPP standard test models 1 to 5 can be measured, including HSDPA and HSUPA signals (test model 5). In
addition to the code domain power measurements specified by the 3GPP standard, the
3GPP user equipment measurements option offers measurements with predefined settings in the frequency domain, e.g. power measurements.
To open the 3GPP UE menu
●
If the 3GPP FDD UE mode is not the active measurement mode, press the MODE
key and select the "3GPP FDD UE" softkey
●
If the 3GPP FDD UE mode is already active, press the MENU key.
The 3GPP UE menu is displayed.
6.1 Menu and Softkey Description for CDA Measurements
6.2 Measurements and Result Diagrams
This chapter describes the menus and softkeys for CDA measurements. The "Span",
"Bandwidth", and "Marker Function" menus are disabled for measurements in the CDA
mode. For all other measurements, the settings are described together with the measurement. The softkeys are described in chapter 7.2.6, "Softkeys and Menus for RF
Measurements (K73)", on page 85.
All other menus are provided as described for the base unit. For details refer to the corresponding menu descriptions.
To display help to a softkey, press the HELP key and then the softkey for which you
want to display help. To close the help window, press the ESC key. For further information refer to chapter 1.3, "How to Use the Help System", on page 8.
The 3GPP user equipment measurement option provides Code Domain Measurements and RF measurements listed below:
Code Domain Measurements
The "Code Domain Measurement" option provides the following test measurement
types and result diagrams which are available via the "Display Config" softkey or the
"Display Config" button in the "Settings Overview" (see "Display Config" on page 53).
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Instrument Functions 3GPP User Equipment Measurements
Measurements and Result Diagrams
●
Code Domain Power (see "Code Domain Power" on page 55 )
●
Code Domain Channel Table (see "Composite EVM (RMS)" on page 56 )
●
Code Domain Result Summary (see "Result Summary" on page 59 )
●
Trace Statistics(Avg, Min, Max) in Code Domain Analyzer Mode (see "Result Sum-
mary" on page 59)
●
Composite EVM (see "Composite EVM (RMS)" on page 56 )
●
Peak Code Domain Error (see "Peak Code Domain Error" on page 56 )
●
Power vs Slot (see "Power vs Slot" on page 58 )
●
Composite Const (see "Composite Constellation" on page 58 )
●
Code Domain Error (see "Code Domain Error Power" on page 61 )
●
Power vs Symbol (see "Power vs Symbol" on page 63 )
●
Symbol Const (see "Symbol Constellation" on page 63 )
●
Symbol EVM (see "Symbol EVM" on page 63 )
●
Symbol Magnitude Error (see "Symbol Magnitude Error" on page 59 )
●
Symbol Phase Error (see "Symbol Phase Error" on page 59 )
●
Bitstream (see "Bitstream" on page 63 )
●
Freq Err vs Slot (see "Freq Err vs Slot" on page 64 )
●
Phase Discontinuity (see "Phase Discontinuity vs Slot" on page 64 )
The code domain power measurements are performed as specified by the 3GPP
standards. A signal section of approx. 20 ms is recorded for analysis and then
searched through to find the start of a 3GPP FDD UE frame. If a frame start is found in
the signal, the code domain power analysis is performed for a complete frame starting
from slot 0. The different result diagrams are calculated from the recorded IQ data set.
Therefore it is not necessary to start a new measurement in order to change the result
diagram. Common settings for these measurements are performed via the settings
menu (HOME key). For details refer to the "Settings Overview" on page 43 dialog
box.
RF measurements
The RF Measurement option provides the following test measurement types and result
displays:
●
Output Power (see chapter 7.2.1, "Output Power Measurements", on page 82 )
●
Adjacent Channel Power (ACLR) (see chapter 7.2.3, "Adjacent Channel Power
(ACLR)", on page 83 )
●
Spectrum Emission Mask (see chapter 7.2.2, "Spectrum Emission Mask",
on page 82 )
●
Occupied Bandwidth (see chapter 7.2.4, "Occupied Bandwidth", on page 84 )
●
CCDF (see chapter 7.2.5, "CCDF", on page 84)
All these measurements are accessed via the MEAS key (measurement menu). Some
parameters are set automatically according to the 3GPP standard. A list of these
parameters is given with each measurement type. A set of parameters is passed on
from the 3GPP user equipment measurements option to the base unit and vice versa
in order to provide a quick swap (see the following table).
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Instrument Functions 3GPP User Equipment Measurements
Working with the Frequency Mask Trigger
Transferred parameters
center frequency
reference level
attenuation
reference level offset
trigger source
6.3 Working with the Frequency Mask Trigger
The Frequency Mask Trigger (FMT) is a trigger designed to trigger measurements if
the signal violates certain conditions with respect to a frequency mask that you can
define prior to the measurement.
Availability of the frequency mask trigger
Note that the frequency mask trigger is available for code domain analysis only.
To create and edit a frequency mask, you can access the corresponding dialog box via
the "Frequency Mask" softkey in the trigger menu.
Opening the dialog box also opens a softkey submenu that contains various functionality to work with frequency masks.
26Operating Manual 1176.7590.02 ─ 03.1
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Instrument Functions 3GPP User Equipment Measurements
Working with the Frequency Mask Trigger
1 = Name and description of the frequency mask
2 = Mask point table: table containing all mask points
3 = Preview pane
4 = Frequency mask preview: the area the frequency mask currently covers is red
5 = Frequency mask data points: define the shape of the frequency mask
6 = Preview of the current measurement trace; type and shape depend on currently selected measurement
7 = Insert button: insert a new data points
8 = Shift X button: shifts the complete frequency mask horizontally
9 = Delete button: deletes an existing data points
10 = Shift Y button: shifts the complete frequency mask vertically
11 = Y-Axis Rel/Abs button: switches between relative (dB) and absolute (dBm) amplitude values
12 = Adapt Mask button: creates a frequency mask automatically
13 = Trigger Condition menu: sets the trigger condition
14 = Activate Line buttons: select the upper and lower frequency mask; check marks next to the buttons acti-
vate and deactivate a line
6.3.1 Creating a Frequency Mask
Upon opening the "Edit Frequency Mask" dialog box, the R&S FSVR already provides
a basic structure of an upper frequency mask in the live preview window.
It is also possible to create a new mask by pressing the "New Mask" softkey. The "New
Mask" softkey resets the current shape of the mask to its default state.
Labelling a frequency mask
Assign a name to the frequency mask in the "Name" field. Activate the input in the
"Name" field either by touching it or via the "Edit Name" softkey. This is also the save
name of the frequency mask.
In addition to naming the mask, you can also comment on the frequency mask you are
working on in the "Comment" field. Again, activate the input either by touching it or with
the "Edit Comment" softkey.
Remote command:
CALCulate<n>:MASK:COMMent on page 154
CALCulate<n>:MASK:NAME on page 156
Defining the frequency mask span
Define the span of the frequency mask.
The span defines the range that the frequency mask covers on the frequency axis.
Remote command:
CALCulate<n>:MASK:SPAN on page 156
Working with upper and lower lines
A frequency mask may have an upper and a lower threshold, with the signal in
between. The checkboxes next to the "Upper Line" and "Lower Line" buttons activate
or deactivate the corresponding line. Note that it is not possible to deactivate both
lines.
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Instrument Functions 3GPP User Equipment Measurements
Working with the Frequency Mask Trigger
You can select the line you want to edit with the "Upper Line" / "Lower Line" buttons or
by touching the corresponding area in the preview to apply any changes. The buttons
turn blue if a line is selected and the R&S FSVR shows the data points in the area covered by the mask in the preview pane.
Remote command:
CALCulate<n>:MASK:LOWer[:STATe] on page 155
CALCulate<n>:MASK:UPPer[:STATe] on page 157
Setting the trigger condition
To make the trigger work, you need to set a trigger condition with the "Trigger Condition" button. The R&S FSVR supports four conditions.
"Entering"
Activates the trigger as soon as the signal enters the frequency mask.
To arm the trigger, the signal initially has to be outside the frequency
mask.
"Leaving"
Activates the trigger as soon as the signal leaves the frequency
mask.
To arm the trigger, the signal initially has to be inside the frequency
mask.
Remote command:
TRIGger<n>[:SEQuence]:MASK:CONDition on page 221
6.3.2 Editing Mask Points
You can adjust the frequency mask any way you want by adding, removing and repositioning frequency mask data points.
Data points define the shape of the frequency mask. In the preview pane, the
R&S FSVR visualizes data points as blue circles. In addition, all data point positions
are listed in the data point table. The number of data points is limited to 801.
Data points are defined by two values. The first value defines the position of the data
point on the horizontal (frequency) axis. Frequency information is relative to the center
frequency.
Note that in realtime mode, the span depends on the realtime bandwidth. That also
means that the distance of a data point to the center frequency can never exceed
20 MHz as the maximum realtime bandwidth is 40 MHz.
The second value defines the position of the data point on the vertical (level) axis. By
default, level information is relative to the reference level. You can, however, turn the
level axis to absolute scaling with the "Y-Axis Abs/Rel" button. This also changes the
unit of the vertical axis (dB for relative data points, dBm for absolute data points).
Adding data points
To add a new data point, press the "Insert" button or the "Insert Value Above" softkey.
The R&S FSVR always adds the data point to the left (or in case of the table, above) of
the currently selected data point. The currently selected data point is highlighted gray
in the table. If no data point was selected previously, the buttons add a new point next
to the very first one.
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Instrument Functions 3GPP User Equipment Measurements
Working with the Frequency Mask Trigger
Deleting data points
The "Delete" button or the "Delete Value" softkey remove a data point from the mask.
The R&S FSVR deletes the currently selected data point. If no data point is selected, it
deletes the first one. The "Delete" button is inactive in that case.
Positioning data points
There are two ways to move a single data point.
In the preview pane, you can drag around the data points on the touchscreen or with a
mouse and position it roughly in the place you want it to be. A more exact method is to
edit the data point table itself end enter the frequencies and levels as you need.
Remote command:
CALCulate<n>:MASK:LOWer[:DATA] on page 155
CALCulate<n>:MASK:UPPer[:DATA] on page 158
Shifting mask points as a whole
With the "Shift X" and "Shift Y" buttons you are able to move all mask points of a frequency mask as one. The "Shift X" button moves the mask point set horizontally, while
the "Shift Y" button moves them vertically. This is an easy method to move mask
points if the relative position of mask points to each other is alright already without
adjusting each one by itself.
Remote command:
CALCulate<n>:MASK:LOWer:SHIFt:X on page 155
CALCulate<n>:MASK:LOWer:SHIFt:Y on page 155
CALCulate<n>:MASK:UPPer:SHIFt:X on page 157
CALCulate<n>:MASK:UPPer:SHIFt:Y on page 157
Automatic alignment of the frequency mask
Instead of defining the position of every data point by hand, the R&S FSVR is able to
shape the frequency mask according to the shape of the current signal. On pressing
the "Auto Set Mask" button, the R&S FSVR forms the frequency mask around the current spectrum.
Note the the automatic alignment of the frequency mask works only for the upper frequency mask.
Remote command:
CALCulate<n>:MASK:UPPer[:DATA] on page 158
6.3.3 Managing Frequency Masks
To be able to reuse or edit a frequency mask that you have defined later, you can save
and restore particular frequency mask configurations.
The R&S FSVR stores files that contain such configurations on its internal hard disk.
Save Mask
The "Save" softkey opens a dialog box to save the current frequency mask configuration in a file.
29Operating Manual 1176.7590.02 ─ 03.1
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Instrument Functions 3GPP User Equipment Measurements
Further Information
If you do not name the file in the dialog box, the R&S FSVR names the file like the
name of the frequency mask itself.
Load Mask
The "Load" softkey opens a dialog box to restore a frequency mask.
The dialog box contains all frequency masks already on the hard disk of the
R&S FSVR. Select the mask you need and confirm the selection with the "Load" button.
Remote command:
Path selection:
CALCulate<n>:MASK:CDIRectory on page 154
Load mask:
CALCulate<n>:MASK:NAME on page 156
Delete Mask
The Delete softkey opens a dialog box to delete a previously saved frequency mask.
The "Delete" button deletes the file. Note that you have to confirm the deletion process.
Remote command:
CALCulate<n>:MASK:DELete on page 154
6.4 Further Information
6.4.1 Short List of Abbreviations............................................................................................ 30
6.4.2 Channels of the Code Domain Channel Table and Their Usage.................................. 31
6.4.3 Detector Overview.........................................................................................................32
6.4.4 Trace Mode Overview...................................................................................................33
6.4.5 Selecting the Appropriate Filter Type............................................................................34
6.4.6 List of Available RRC and Channel Filters.................................................................... 35
6.4.7 ASCII File Export Format.............................................................................................. 37
6.4.1 Short List of Abbreviations
Term or abbreviation Description
UE user equipment
CPICH common pilot channel
DPCH dedicated physical channel, data channel
FDD frequency division duplexing
PCCPCH primary common control physical channel
30Operating Manual 1176.7590.02 ─ 03.1
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Instrument Functions 3GPP User Equipment Measurements
Further Information
Term or abbreviation Description
PICH paging indication channel
SCH synchronization channel, divided into P-SCH (primary synchronization
channel) and S-SCH (secondary synchronization channel)
6.4.2 Channels of the Code Domain Channel Table and Their Usage
The channel assignment table contains the following (data) channels:
Channel Description
DPCCH The Dedicated Physical Control Channel is used to synchronize the signal. It
carries pilot symbols and is expected in the Q branch at code class 8 with code
number 0. The channel is displayed in the upper part of the table.
DPDCH The Dedicated Physical Data Channel is used to carry UPLINK data from the
UE to the BS. The code allocation depends on the total required symbol rate.
The following table represents the possible configurations of DPCH spreading
factors and code allocation.
HSDPCCH The High Speed Dedicated Physical Control Channel (for HS-DCH) is used to
carry control information (CQI/ACK/NACK) for downlink high speed data channels (HS-DCH). It is used in HSDPA signal setup. The data rate is fixed to
15ksps. The code allocation depends on the number of active DPCH and is
described in the table below. This control channel is displayed in the upper part
of the channel table. The HS-DPCCH can be switched on or off after the duration of 1/5 frame or 3 slots or 2ms. Power control is applicable too.
EDPCCH The Enhanced Dedicated Physical Control Channel is used to carry control
information for uplink high speed data channels (EDPDCH). It is used in
HSUPA signal setup. The data rate is fixed to 15ksps. This control channel is
displayed in the upper part of the channel table.
EDPDCH The Enhanced Dedicated Physical Data Channel is used to carry UPLINK data
for high speed channels (EDPDCH). It is used in HSUPA signal setup. The data
rate and code allocation depends on the number of DPDCH and HS-DPCCH
(refer to table below). This data channel is displayed in the lower part of the
channel table.
The following parameters of these channels are determined by the CDP measurement:
Channel Type Type of channel (active channels only)
Symbol Rate Symbol rate at which the channel is transmitted
Channel Number Number of channel spreading code (0 to [spreading factor-1])
Use TFCI
Timing Offset
Pilot Bits Number of pilot bits of the channel (only valid for the control channel DPCCH)
CDP Relative
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Instrument Functions 3GPP User Equipment Measurements
Further Information
Status
Confilct
6.4.3 Detector Overview
The measurement detector for the individual display modes can be selected directly by
the user or set automatically by the R&S FSVR. The detector activated for the specific
trace is indicated in the corresponding trace display field by an abbreviation.
The detectors of the R&S FSVR are implemented as pure digital devices. They collect
signal power data within each measured point during a sweep. The default number of
sweep points is 691. The following detectors are available:
Table 6-1: Detector types
Detector Indicator Function
Auto Peak Ap Determines the maximum and the minimum value
Positive Peak Pk Determines the maximum value within a measure-
Negative Peak (min peak) Mi Determines the minimum value within a measure-
within a measurement point (not available for SEM)
ment point
ment point
RMS Rm Determines the root mean square power within a
measurement point
Average Av Determines the linear average power within a mea-
surement point
Sample Sa Selects the last value within a measurement point
The result obtained from the selected detector within a measurement point is displayed
as the power value at this measurement point.
All detectors work in parallel in the background, which means that the measurement
speed is independent of the detector combination used for different traces.
Number of measured values
During a frequency sweep, the R&S FSVR increments the first local oscillator in steps
that are smaller than approximately 1/10 of the bandwidth. This ensures that the oscillator step speed is conform to the hardware settling times and does not affect the precision of the measured power.
The number of measured values taken during a sweep is independent of the number of
oscillator steps. It is always selected as a multiple or a fraction of 691 (= default number of trace points displayed on the screen). Choosing less then 691 measured values
(e.g. 125 or 251) will lead to an interpolated measurement curve, choosing more than
691 points (e.g. 1001, 2001 …) will result in several measured values being overlaid at
the same frequency position.
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Instrument Functions 3GPP User Equipment Measurements
Further Information
RMS detector and VBW
If the RMS detector is selected, the video bandwidth in the hardware is bypassed.
Thus, duplicate trace averaging with small VBWs and RMS detector no longer occurs.
However, the VBW is still considered when calculating the sweep time. This leads to a
longer sweep time for small VBW values. Thus, you can reduce the VBW value to achieve more stable trace curves even when using an RMS detector. Normally, if the RMS
detector is used the sweep time should be increased to get more stable trace curves.
6.4.4 Trace Mode Overview
The traces can be activated individually for a measurement or frozen after completion
of a measurement. Traces that are not activate are hidden. Each time the trace mode
is changed, the selected trace memory is cleared.
The R&S FSVR offers 6 different trace modes:
Clear Write
Overwrite mode: the trace is overwritten by each sweep. This is the default setting.
All available detectors can be selected.
Remote command:
DISP:TRAC:MODE WRIT, see DISPlay[:WINDow<n>]:TRACe<t>:MODE
on page 207
Max Hold
The maximum value is determined over several sweeps and displayed. The
R&S FSVR saves the sweep result in the trace memory only if the new value is greater
than the previous one.
The detector is automatically set to "Positive Peak".
This mode is especially useful with modulated or pulsed signals. The signal spectrum
is filled up upon each sweep until all signal components are detected in a kind of envelope.
This mode is not available for statistics measurements.
Remote command:
DISP:TRAC:MODE MAXH, see DISPlay[:WINDow<n>]:TRACe<t>:MODE
on page 207
Min Hold
The minimum value is determined from several measurements and displayed. The
R&S FSVR saves the smallest of the previously stored/currently measured values in
the trace memory.
The detector is automatically set to "Negative Peak".
This mode is useful e.g. for making an unmodulated carrier in a composite signal visi-
ble. Noise, interference signals or modulated signals are suppressed whereas a CW
signal is recognized by its constant level.
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Instrument Functions 3GPP User Equipment Measurements
Further Information
This mode is not available for statistics measurements.
Remote command:
DISP:TRAC:MODE MINH, see DISPlay[:WINDow<n>]:TRACe<t>:MODE
on page 207
Average
The average is formed over several sweeps. The Sweep Count determines the number
of averaging procedures.
All available detectors can be selected. If the detector is automatically selected, the
sample detector is used (see chapter 6.4.3, "Detector Overview", on page 32).
This mode is not available for statistics measurements.
Remote command:
DISP:TRAC:MODE AVER, see DISPlay[:WINDow<n>]:TRACe<t>:MODE
on page 207
View
The current contents of the trace memory are frozen and displayed.
Note: If a trace is frozen, the instrument settings, apart from level range and reference
level (see below), can be changed without impact on the displayed trace. The fact that
the displayed trace no longer matches the current instrument setting is indicated by the
icon on the tab label.
If the level range or reference level is changed, the R&S FSVR automatically adapts
the measured data to the changed display range. This allows an amplitude zoom to be
made after the measurement in order to show details of the trace.
Remote command:
DISP:TRAC:MODE VIEW, see DISPlay[:WINDow<n>]:TRACe<t>:MODE
on page 207
Blank
Hides the selected trace.
Remote command:
DISP:TRAC OFF, see DISPlay[:WINDow<n>]:TRACe<t>[:STATe] on page 208
6.4.5 Selecting the Appropriate Filter Type
All resolution bandwidths are realized with digital filters.
The video filters are responsible for smoothing the displayed trace. Using video bandwidths that are small compared to the resolution bandwidth, only the signal average is
displayed and noise peaks and pulsed signals are repressed. If pulsed signals are to
be measured, it is advisable to use a video bandwidth that is large compared to the
resolution bandwidth (VBW * 10 x RBW) for the amplitudes of pulses to be measured
correctly.
The following filter types are available:
●
Normal (3dB) (Gaussian) filters
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Instrument Functions 3GPP User Equipment Measurements
Further Information
The Gaussian filters are set by default. The available bandwidths are specified in
the data sheet.
●
CISPR (6 dB) filters
●
MIL Std (6 dB) filters
Note that the 6 dB bandwidths are available only with option R&S FSV-K54.
●
Channel filters
For details see chapter 6.4.6, "List of Available RRC and Channel Filters",
on page 35 .
Channel filters do not support FFT mode.
●
RRC filters
For details see chapter 6.4.6, "List of Available RRC and Channel Filters",
on page 35 .
RRC filters do not support FFT mode.
●
5-Pole filters
The available bandwidths are specified in the data sheet.
5-Pole filters do not support FFT mode.
6.4.6 List of Available RRC and Channel Filters
For power measurement a number of especially steep-edged channel filters are available (see the following table). The indicated filter bandwidth is the 3 dB bandwidth. For
RRC filters, the fixed roll-off factor (a) is also indicated.
Table 6-2: Filter types
Filter Bandwidth Filter Type Application
100 Hz CFILter
200 Hz CFILter A0
300 Hz CFILter
500 Hz CFILter
1 kHz CFILter
1.5 kHz CFILter
2 kHz CFILter
2.4 kHz CFILter SSB
2.7 kHz CFILter
3 kHz CFILter
3.4 kHz CFILter
4 kHz CFILter DAB, Satellite
4.5 kHz CFILter
5 kHz CFILter
6 kHz CFILter
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Instrument Functions 3GPP User Equipment Measurements
Further Information
Filter Bandwidth Filter Type Application
6 kHz, a=0.2 RRC APCO
8.5 kHz CFILter ETS300 113 (12.5 kHz channels)
9 kHz CFILter AM Radio
10 kHz CFILter
12.5 kHz CFILter CDMAone
14 kHz CFILter ETS300 113 (20 kHz channels)
15 kHz CFILter
16 kHz CFILter ETS300 113 (25 kHz channels)
18 kHz, a=0.35 RRC TETRA
20 kHz CFILter
21 kHz CFILter PDC
24.3 kHz, a=0.35 RRC IS 136
25 kHz CFILter
30 kHz CFILter CDPD, CDMAone
50 kHz CFILter
100 kHz CFILter
150 kHz CFILter FM Radio
192 kHz CFILter PHS
200 kHz CFILter
300 kHz CFILter
500 kHz CFILter J.83 (8-VSB DVB, USA)
1 MHz CFILter CDMAone
1.228 MHz CFILter CDMAone
1.28 MHz, a=0.22 RRC
1.5 MHz CFILter DAB
2 MHz CFILter
3 MHz CFILter
3.75 MHz CFILter
3.84 MHz, a=0.22 RRC W-CDMA 3GPP
4.096 MHz, a=0.22 RRC W-CDMA NTT DOCoMo
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R&S® FSV-K73
Instrument Functions 3GPP User Equipment Measurements
Further Information
Filter Bandwidth Filter Type Application
5 MHz CFILter
20 MHz CFILter
28 MHz CFILter
40 MHz CFILter
6.4.7 ASCII File Export Format
The data of the file header consist of three columns, each separated by a semicolon:
parameter name; numeric value; basic unit. The data section starts with the keyword
"Trace <n>" (<n> = number of stored trace), followed by the measured data in one or
several columns (depending on measurement) which are also separated by a semicolon.
File contents: header and data section Description
Type;FSVR;
Version;1.45;
Date;01.Apr 2010; Date of data set storage
Screen;A; Instrument mode
Points per Symbol;4; Points per symbol
x Axis Start;-13;sym; Start value of the x axis
x Axis Stop;135;sym; Stop value of the x axis
Ref value y axis;-10.00;dBm; Y axis reference value
Ref value position;100;%; Y axis reference position
Trace;1; Trace number
Meas;Result; Result type
Meas Signal;Magnitude; Result display
Demodulator;Offset QPSK; Demodulation type
ResultMode;Trace; Result mode
x unit;sym; Unit of the x axis
y unit;dBm; Unit of the y axis
Trace Mode;Clear Write; Trace mode
Values;592; Number of results
<values> List of results
37Operating Manual 1176.7590.02 ─ 03.1
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7 Configuration of 3GPP FDD UE Measure-
Configuration of 3GPP FDD UE Measurements
ments
The R&S FSV-K73 option appears in the "Select Mode" menu (MODE key) as "3GPP
FDD UE". This softkey can be used to start the R&S FSV–K73 options.
The most important parameters for the 3GPP FDD UE user equipment tests are summarized in the root menu of the R&S FSV–K73 option and explained below using the
softkey functions. The root menu is available by pressing the "3GPP FDD UE" softkey
in the "Select Mode" menu, the MEAS key or the HOME key.
The Code Domain Analyzer softkey activates the code domain analyzer measurement
mode and opens the submenus for setting the measurement.
The "Power", "Ch Power ACLR", "Spectrum Emission Mask", "Occupied Bandwidth",
"CCDF" and "RF Combi" softkeys activate tests in the analyzer mode. Pressing the
associated softkey performs the settings required by 3GPP specifications. A subsequent modification of settings is possible.
It is possible that your instrument configuration does not provide all softkeys. If a softkey is only available with a special option, model or (measurement) mode, this information is delivered in the corresponding softkey description.
chapter 7.1, "Code
Domain Analyzer Measurements (K73)",
on page 39
chapter 7.2.1, "Output
Power Measurements",
on page 82
chapter 7.2.3, "Adjacent
Channel Power (ACLR)",
on page 83
chapter 7.2.2, "Spectrum
Emission Mask",
on page 82
chapter 7.2.4, "Occupied
Bandwidth",
on page 84
chapter 7.2.5, "CCDF",
on page 84
Activates the code domain measurement mode and opens another submenu
for selecting and configuring the parameters. All other menus of the R&S FSVR
are adapted to the functions of the code domain measurement mode.
Activates the channel power measurement with defined settings in the analyzer
mode.
Activates the adjacent-channel power measurement with defined settings in the
analyzer mode.
Compares the signal power in different carrier offset ranges with the maximum
values specified by 3GPP.
Activates the measurement of the occupied bandwidth (analyzer mode).
Evaluates the signal with regard to its statistical characteristics (distribution
function of the signal amplitudes).
7.1 Code Domain Analyzer Measurements (K73)...........................................................39
7.1.1 Display Concept............................................................................................................39
7.1.2 Softkeys of the Code Domain Analyzer Menu (R&S FSV–K73)................................... 42
7.1.3 Measurement Modes in Code Domain Analyzer...........................................................55
7.1.4 Softkeys of the Frequency Menu – FREQ key (R&S FSV–K73)...................................64
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7.1.5 Softkeys of the Amplitude Menu – AMPT key (R&S FSV–K73)....................................65
7.1.6 Softkeys of the Sweep Menu – SWEEP key (R&S FSV–K73)......................................68
7.1.7 Softkeys of the Trigger Menu – TRIG key (R&S FSV–K73)..........................................69
7.1.8 Softkeys of the Trace Menu – TRACE key (R&S FSV–K73)........................................ 71
7.1.9 Softkeys of the Marker Menu – MKR key (R&S FSV–K73).......................................... 72
7.1.10 Softkeys of the Marker To Menu – MKR-> key (R&S FSV–K73)..................................73
7.1.11 Softkeys of the Auto Set Menu – AUTO SET Key (R&S FSV–K73)............................. 76
7.1.12 Softkeys of the Input/Output Menu for CDA Measurements......................................... 77
7.2 RF Measurements....................................................................................................... 82
7.2.1 Output Power Measurements....................................................................................... 82
7.2.2 Spectrum Emission Mask..............................................................................................82
7.2.3 Adjacent Channel Power (ACLR)..................................................................................83
7.2.4 Occupied Bandwidth..................................................................................................... 84
Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
7.2.5 CCDF............................................................................................................................ 84
7.2.6 Softkeys and Menus for RF Measurements (K73)........................................................ 85
7.1 Code Domain Analyzer Measurements (K73)
The Code Domain Analyzer softkey activates the code domain analyzer measurement
mode and opens the submenu to set the measurement.
Refer to chapter 7.1, "Code Domain Analyzer Measurements (K73)", on page 39 for an
introduction to the code domain analyzer settings.
For a brief introduction to the display concept of the code domain analyzer measurements refer to chapter 7.1.1, "Display Concept", on page 39.
7.1.1 Display Concept
Measurement results
The code domain analyzer can show up to four result diagrams in four different
screens (windows) at one time. For each screen, you can define which type of result
diagram is to be displayed, or deactivate the screen temporarily. The current configuration of the display, i.e. which screens are displayed and which result diagram is displayed in which screen, can be stored and retrieved later. Thus, you can easily switch
between predefined display configurations.
All results are calculated from the same dataset of the recorded signal. Thus, it is not
necessary to restart the measurement in order to switch the display mode.
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Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
The available measurement types and result diagrams are described in chapter 7.1.3,
"Measurement Modes in Code Domain Analyzer", on page 55 .
For more information on the display configuration, see the description of the "Display
Config" on page 53 softkey.
Measurement settings
The most important measurement settings are displayed in the diagram header. For
Code Domain Analyzer measurements, the following settings are shown:
Label Description
Ref level Reference level defined in "Ref Level" on page 44
Att Attenuation
Freq Center frequency defined in "Center" on page 44
Channel Channel with spreading factor and mapping
Slot Slot
Power "Code Power Display" defined in "Demod Settings" on page 51
Capture Analysis Mode (Slot, Frame) defined in "IQ Capture Settings" on page 45
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Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
Overview of all measurement settings
You can easily display an overview of all measurement settings using the "Settings
Overview" on page 43 softkey.
In addition to the information in the diagram header, each screen title contains diagram-specific trace information.
Screen focus
One of the screens has a blue frame indicating the focus. The screen focus can be
changed just like in the base system. The settings for trace statistics and markers can
only be changed for the focussed screen. Furthermore, the focussed screen can be set
to full screen (for details see the R&S FSVR Quick Start Guide).
7.1.1.1 Defining the display configuration
1. Select the "Display Config" softkey in the "Code Domain Analyzer" menu.
2. Select the tab for the screen you want to configure (A-D).
3. Select the "Screen X active" option to display the selected screen.
Tip: SCPI command: DISPlay[:WINDow<n>]:STATe on page 207
4. Select the required result diagram to be displayed in the selected screen.
Tip: SCPI command: CALCulate<n>:FEED on page 113
5. Press "Close".
To select a predefined display configuration
You can retrieve previously stored display configurations, and thus easily switch
between different displays of measurement results.
1. Select the "Predefined" tab in the "Display Configuration" dialog box.
The previously stored and default configurations are listed. The current configuration is displayed at the top of the dialog box.
2. Select the required set of screen configurations.
3. Press "Apply".
To store the current display configuration
You can store the current display configuration in the list of predefined settings in order
to switch back to it later.
1. Select the current display configuration at the top of the "Display Configuration"
dialog box.
2. Click "Add".
The current display configuration is added to the list of predefined settings.
41Operating Manual 1176.7590.02 ─ 03.1
R&S® FSV-K73
Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
To remove a predefined display configuration
You can remove one of the stored display configurations.
1. Select the display configuration to be removed from the "Predefined" tab of the
"Display Configuration" dialog box.
2. Click "Remove".
The selected display configuration is removed from the list of predefined settings.
To restore the default display configurations
You can restore the default set of predefined display configurations.
► In the "Predefined" tab of the "Display Configuration" dialog box, click "Restore".
7.1.2 Softkeys of the Code Domain Analyzer Menu (R&S FSV–K73)
The Code Domain Analyzer softkey opens the "Code Domain Analyzer" submenu.
Settings Overview......................................................................................................... 43
Frontend Settings..........................................................................................................44
└ Center............................................................................................................. 44
└ Frequency Offset............................................................................................ 44
└ Ref Level.........................................................................................................44
└ Ref Level Offset.............................................................................................. 45
└ Preamp On/Off................................................................................................45
└ Adjust Ref Lvl..................................................................................................45
IQ Capture Settings.......................................................................................................45
└ Invert Q........................................................................................................... 46
└ RRC Filter....................................................................................................... 46
└ Analysis Mode.................................................................................................46
└ Frame To Analyze...........................................................................................46
└ Capture Length............................................................................................... 47
└ Trigger Source External..................................................................................47
└ Trigger Source Free Run................................................................................ 47
└ Trg/Gate Polarity.............................................................................................47
└ Trigger Offset..................................................................................................47
Sync/Scrambling Settings............................................................................................. 48
└ Scrambling Code............................................................................................ 48
└ Format.............................................................................................................48
└ Type................................................................................................................48
Channel Detection Settings...........................................................................................48
└ HS-DPA/UPA..................................................................................................49
└ Channel Search Mode.................................................................................... 49
└ Predefined Tables...........................................................................................49
└ New.................................................................................................................49
└ Meas.....................................................................................................50
└ Copy................................................................................................................51
└ Edit..................................................................................................................51
└ Delete..............................................................................................................51
42Operating Manual 1176.7590.02 ─ 03.1
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Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
Demod Settings.............................................................................................................51
└ Code Power Displ........................................................................................... 52
└ Normalize........................................................................................................52
└ Meas Interval.................................................................................................. 52
└ Eliminate Tail Chips........................................................................................ 52
Display Config...............................................................................................................53
Select Channel..............................................................................................................53
└ Select Channel................................................................................................53
└ Select Slot.......................................................................................................54
Select Branch................................................................................................................54
Settings Overview
The "Settings Overview" softkey opens the "Settings Overview" dialog box that visualizes the data flow of the Code Domain Analyzer and summarizes the current settings.
In addition, the current settings can be changed via the "Settings Overview" dialog box.
To change the settings, either use the rotary knob or the curser keys to change the
focus to another button, and press the ENTER key to open the corresponding dialog
box. To open the dialog boxes displayed in the "Settings Overview" dialog box, you
can also press the particular softkey in the "Code Domain Analyzer" submenu.
Setting Refer to
Frontend "Frontend Settings" on page 44
IQ-Capture "IQ Capture Settings" on page 45
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Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
Setting Refer to
Descrambling/Sync Search/Despreading
Channel Detection "Channel Detection Settings" on page 48
Demodulation/Evaluation "Demod Settings" on page 51
Display Configuration chapter 7.1.1, "Display Concept", on page 39
"Sync/Scrambling Settings" on page 48
Frontend Settings
This softkey opens the "Frontend Settings" dialog box to modify the following parameters:
Center ← Frontend Settings
Opens an edit dialog box to enter the center frequency. The allowed range of values
for the center frequency depends on the frequency span.
span > 0: span
span = 0: 0 Hz ≤ f
f
and span
max
/2 ≤ f
min
center
are specified in the data sheet.
min
center
≤ f
max
≤ f
max
– span
min
/2
Remote command:
[SENSe:]FREQuency:CENTer on page 190
Frequency Offset ← Frontend Settings
Opens an edit dialog box to enter a frequency offset that shifts the displayed frequency
range by the specified offset.
The softkey indicates the current frequency offset. The allowed values range from
-100 GHz to 100 GHz. The default setting is 0 Hz.
Remote command:
[SENSe:]FREQuency:OFFSet on page 191
Ref Level ← Frontend Settings
Opens an edit dialog box to enter the reference level in the current unit (dBm, dBµV,
etc).
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Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
The reference level is the maximum value the AD converter can handle without distortion of the measured value. Signal levels above this value will not be measured correctly, which is indicated by the "IFOVL" status display.
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RLEVel on page 209
Ref Level Offset ← Frontend Settings
Opens an edit dialog box to enter the arithmetic level offset. This offset is added to the
measured level irrespective of the selected unit. The scaling of the y-axis is changed
accordingly. The setting range is ±200 dB in 0.1 dB steps.
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RLEVel:OFFSet on page 210
Preamp On/Off ← Frontend Settings
Switches the preamplifier on and off.
If option R&S FSV-B22 is installed, the preamplifier is only active below 7 GHz.
If option R&S FSV-B24 is installed, the preamplifier is active for all frequencies.
This function is not available for input from the R&S Digital I/Q Interface (option
R&S FSV-B17).
Remote command:
INPut:GAIN:STATe on page 218
Adjust Ref Lvl ← Frontend Settings
Defines the optimal reference level for the current measurement automatically.
Remote command:
[SENSe:]ADJust:LEVel on page 185
IQ Capture Settings
Opens the "IQ Capture Settings" dialog box.
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Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
Invert Q ← IQ Capture Settings
Inverts the sign of the signal's Q-component. The default setting is OFF.
Remote command:
[SENSe:]CDPower:QINVert on page 177
RRC Filter ← IQ Capture Settings
Selects if a root raised cosine (RRC) receiver filter is used or not. This feature is useful
if the RRC filter is implemented in the device under test (DUT).
"ON"
"OFF"
Remote command:
[SENSe:]CDPower:FILTer[:STATe] on page 172
Analysis Mode ← IQ Capture Settings
Select a result length of one slot or one complete frame.
Remote command:
[SENSe:]CDPower:BASE on page 171
If an unfiltered WCDMA signal is received (normal case), the RRC filter should be used to get a correct signal demodulation. (Default settings)
If a filtered WCDMA signal is received, the RRC filter should not be
used to get a correct signal demodulation. This is the case if the DUT
filters the signal.
Frame To Analyze ← IQ Capture Settings
Enter the Frame to analyze and to be displayed.
Remote command:
[SENSe:]CDPower:FRAMe[:LVALue] on page 172
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R&S® FSV-K73
Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
Capture Length ← IQ Capture Settings
Enter the capture length (amount of frames to record).
Remote command:
[SENSe:]CDPower:IQLength on page 173
Trigger Source External ← IQ Capture Settings
Defines triggering via a TTL signal at the "EXT TRIG/GATE IN" input connector on the
rear panel.
An edit dialog box is displayed to define the external trigger level.
Remote command:
TRIG:SOUR EXT, see TRIGger<n>[:SEQuence]:SOURce on page 221
Trigger Source Free Run ← IQ Capture Settings
The start of a sweep is not triggered. Once a measurement is completed, another is
started immediately.
Remote command:
TRIG:SOUR IMM, see TRIGger<n>[:SEQuence]:SOURce on page 221
Trg/Gate Polarity ← IQ Capture Settings
Sets the polarity of the trigger/gate source.
The sweep starts after a positive or negative edge of the trigger signal. The default set-
ting is "Pos". The setting applies to all trigger modes with the exception of the "Free
Run", "Power Sensor" and "Time" mode.
For details also see "Using Gated Sweep Operation" in the base unit description.
"Pos"
Level triggering: the sweep is stopped by the logic "0" signal and
restarted by the logical "1" signal after the gate delay time has
elapsed.
"Neg"
Edge triggering: the sweep is continued on a "0" to "1" transition for
the gate length duration after the gate delay time has elapsed.
Remote command:
TRIGger<n>[:SEQuence]:SLOPe on page 221
Trigger Offset ← IQ Capture Settings
Opens an edit dialog box to enter the time offset between the trigger signal and the
start of the sweep.
offset > 0: Start of the sweep is delayed
offset < 0: Sweep starts earlier (pre-trigger)
Only possible for span = 0 (e.g. I/Q Analyzer mode) and gated trigger
switched off
Maximum allowed range limited by the sweep time:
pretrigger
When using the R&S Digital I/Q Interface (R&S FSV-B17) with I/Q Analyzer mode, the maximum range is limited by the number of pretrigger
samples.
See the R&S Digital I/Q Interface(R&S FSV-B17) description in the base
unit.
= sweep time
max
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R&S® FSV-K73
Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
In the "External" or "IF Power" trigger mode, a common input signal is used for both
trigger and gate. Therefore, changes to the gate delay will affect the trigger delay (trigger offset) as well.
Remote command:
TRIGger<n>[:SEQuence]:HOLDoff[:TIME] on page 220
Sync/Scrambling Settings
Opens the "Descrambling/Sync Search Settings" dialog box.
Scrambling Code ← Sync/Scrambling Settings
Define the scrambling code in the specified format.
The entered scrambling code has to be identical to that of the signal. Otherwise a CDP
measurement of the signal is not possible.
Remote command:
[SENSe:]CDPower:LCODe[:VALue] on page 175
Format ← Sync/Scrambling Settings
Switches the display format of the scrambling codes between hexadecimal and decimal.
Remote command:
SENS:CDP:LCOD:DVAL <numeric value> (see [SENSe:]CDPower:LCODe[:
VALue] on page 175)
Type ← Sync/Scrambling Settings
Select whether the entered scrambling code is to be handled as long or short scrambling code.
Remote command:
[SENSe:]CDPower:LCODe:TYPE on page 174
Channel Detection Settings
Opens the "Channel Detection Settings" dialog box.
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R&S® FSV-K73
Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
HS-DPA/UPA ← Channel Detection Settings
If this option is selected, it enables the application to detect HSUPA/DPA-channels and
shows them in the channel table.
Remote command:
[SENSe:]CDPower:HSDPamode on page 172
Channel Search Mode ← Channel Detection Settings
Select the channel search mode. Either select "Predef" to use predefined tables or
"Auto" for automatic detection of the channels.
Remote command:
CONFigure:WCDPower:MS:CTABle[:STATe] on page 165
CONFigure:WCDPower:MS:CTABle:SELect on page 166
Predefined Tables ← Channel Detection Settings
The list shows all available channel tables and marks the current active table or the
table to edit.
Remote command:
CONFigure:WCDPower:MS:CTABle:CATalog? on page 168
New ← Channel Detection Settings
Opens the "New Channel Table" dialog box to define new channel table settings.
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Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
Enter "Name" and "Description" for the new channel table and define the settings in the
table below.
Channel Type Type of channel (active channels only)
Symbol Rate Symbol rate at which the channel is transmitted
Channel Number Number of channel spreading code (0 to [spreading factor-1])
Mapping Component onto which the channel is mapped (I or Q). The entry is not edita-
ble, since the standard specifies the channel assignment for each channel.
Pilot Bits Number of pilot bits of the channel (only valid for the control channel DPCCH)
CDP Relative Channel relative (referred to the total power of the signal)
Status Status display. Codes that are not assigned are marked as inactive channels.
Meas ← New ← Channel Detection Settings
Creates a new channel table with the settings from the current measurement data.
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Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
Copy ← Channel Detection Settings
Opens the "Copy Channel Table" dialog box to copy the currently displayed channel
table. Enter a name for the new table, edit the settings as described for a new table
(see "New" on page 49) and select "Save".
Edit ← Channel Detection Settings
Opens the "Edit Channel Table" dialog box to edit the currently displayed channel
table. Edit the settings as described for a new table (see "New" on page 49) and select
"Save".
Delete ← Channel Detection Settings
Deletes the currently displayed channel table after a message is confirmed.
Demod Settings
Opens the "Demodulation Settings" dialog box.
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Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
Code Power Displ ← Demod Settings
Switches between showing the absolute power or the power relative to the chosen reference.
This parameter only affects the display mode "Code Domain Power"
Remote command:
[SENSe:]CDPower:PDIsplay on page 176
Normalize ← Demod Settings
Changes the elimination of the DC-offset. If the radio button On is selected, the DCoffset is eliminated. Otherwise the DC-Offset is not eliminated.
Remote command:
[SENSe:]CDPower:NORMalize on page 176
Meas Interval ← Demod Settings
Switches between the analysis of an half slot or a full slot.
Both measurement intervals are influenced by the settings of Eliminate Tail Chips: If
"Eliminate Tail Chips" is set to On, 96 chips at both ends of the measurement interval
are not taken into account for analysis.
"Slot"
"Halfslot"
Remote command:
[SENSe:]CDPower:HSLot on page 173
Eliminate Tail Chips ← Demod Settings
Selects the length of the measurement interval for calculation of error vector magnitude
(EVM). In accordance with 3GPP specification Release 5, the EVM measurement
interval is one slot (4096 chips) minus 25 _s at each end of the burst (3904 chips) if
power changes are expected. If no power changes are expected, the evaluation length
is one slot (4096 chips).
The length of each analysis interval is 2560 chips, corresponding to
one time slot of the 3GPP signal. The time reference for the start of
slot 0 is the start of a 3GPP radio frame.
The length of each analysis interval is reduced to 1280 chips, corresponding to half of one time slot of the 3GPP signal.
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Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
"On"
"Off"
Remote command:
[SENSe:]CDPower:ETCHips on page 171
Display Config
Opens the "Display Configuration" dialog box in which you can define how the measurement results are displayed.
The code domain analyzer can show up to four result diagrams in four different
screens (windows) at one time. For each screen, you can define which type of result
diagram is to be displayed, or deactivate the screen temporarily.
All results are calculated from the same dataset of the recorded signal. Thus, it is not
necessary to restart the measurement in order to switch the display mode.
The display modes and measurements specified by the 3GPP standard and available
in Code Domain Analyzer mode are described in chapter 7.1.3, "Measurement Modes
in Code Domain Analyzer", on page 55 .
The current configuration of the display, i.e. which screens are displayed and which
result diagram is displayed in which screen, can be stored and retrieved later. Thus,
you can easily switch between predefined display configurations.
Changes of power are expected. Therefore an EVM measurement
interval of one slot minus 25 _s (3904 chips) is considered.
Changes of power are not expected. Therefore an EVM measurement
interval of one slot (4096 chips) is considered. (Default settings)
Select Channel
Opens a dialog box to select a channel and a slot.
Select Channel ← Select Channel
Selects a channel for the calculation of the result diagrams "CDP PWR RELATIVE/
ABSOLUTE", "POWER VS SLOT", "SYMBOL CONST" and "SYMBOL EVM" (see also
chapter 6.2, "Measurements and Result Diagrams", on page 24 ).
There are two ways to enter the channel numbers:
●
Enter a channel number and spreading factor, separated by a decimal point.
If the channel number and the spreading factor are entered simultaneously, the
entered channel is selected and marked in red if an active channel is involved. For
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Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
the display, the channel number entered is converted on the basis of spreading
factor 512. For unused channels, the code resulting from the conversion is marked.
Example: Enter 5.128
Channel 5 is marked at spreading factor 128 (30 ksps) if the channel is active, otherwise code 20 at spreading factor 512.
●
Enter a channel number without a decimal point.
In this case, the instrument interprets the entered code as based on spreading factor 512. If the code entered corresponds to a used channel, the entire associated
channel is marked. If the code corresponds to an unused channel, only the code
entered is marked.
Example: Enter 20
Code 20 is marked at spreading factor 512 if there is no active channel on this
code. If for instance channel 5 is active at spreading factor 128, the entire channel
5 is marked.
If the entered code corresponds to an active channel, the entire associated channel is marked. If it corresponds to a gap between the channels, only the entered
code is marked.
If the code number is modified using the rotary knob, the red marking changes its
position in the diagram only if the code number no longer belongs to the marked
channel. The step width of the changed rotary knob position refers to a spreading
factor of 512.
Remote command:
[SENSe:]CDPower:CODE on page 171
Select Slot ← Select Channel
Selects the slot for evaluation. This affects the following result diagrams (see also
chapter 6.2, "Measurements and Result Diagrams", on page 24):
●
Code Domain Power
●
Peak Code Domain Error
●
Result Summary
●
Composite Constellation
●
Code Domain Error Power
●
Channel Table
●
Power vs Symbol
●
Symbol Const
●
Symbol EVM
●
Bitstream
Remote command:
[SENSe:]CDPower:SLOT on page 177
Select Branch
Switches between the evaluation of the I and the Q branch.
Remote command:
CALCulate<n>:CDPower:Mapping on page 112
54Operating Manual 1176.7590.02 ─ 03.1
R&S® FSV-K73
Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
7.1.3 Measurement Modes in Code Domain Analyzer
The display modes in this chapter are all based on the recording of the IQ-Data. With
the same dataset of the recorded signal, we can calculate the following display modes.
Therefore it is not necessary to restart the measurement to switch the display mode.
The following display modes and measurements specified by the 3GPP standard are
available:
Code Domain Power.....................................................................................................55
Composite EVM (RMS).................................................................................................56
Peak Code Domain Error..............................................................................................56
EVM vs Chip................................................................................................................. 56
Mag Error vs Chip......................................................................................................... 57
Phase Error vs Chip......................................................................................................58
Composite Constellation............................................................................................... 58
Power vs Slot................................................................................................................ 58
Symbol Magnitude Error............................................................................................... 59
Symbol Phase Error......................................................................................................59
Result Summary............................................................................................................59
Code Domain Error Power............................................................................................61
Channel Table...............................................................................................................61
Power vs Symbol.......................................................................................................... 63
Symbol Constellation.................................................................................................... 63
Symbol EVM................................................................................................................. 63
Bitstream.......................................................................................................................63
Freq Err vs Slot............................................................................................................. 64
Phase Discontinuity vs Slot...........................................................................................64
Code Domain Power
Fig. 7-1: Code Domain Power Display for R&S
FSV–K73
The "Code Domain Power" display mode shows the power of the different code channels in the the adjusted slot. Due to the circumstance that the power is regulated from
slot to slot, the result power may differ between different slots. Detected channels are
painted yellow. The channel which is adjusted via Select Channel is marked red. The
codes where no channel could be detected are painted cyan.
55Operating Manual 1176.7590.02 ─ 03.1
R&S® FSV-K73
Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
If some of the DPCH-channels contain incorrect pilot symbols, these channels are
marked with the color green, and an "INCORRECT PILOT" message is displayed in
the status bar.
If HS-DPA/UPA is set to "ON" in the "Channel Detection Settings"/"Common Settings"
dialog box, channels without pilot symbols, e.g. channels of type "HS-PDSCH", are
recognized as active.
Remote command:
CALC:FEED "XPOW:CDP", see chapter 8.2.2, "CALCulate:FEED subsystem",
on page 113
Composite EVM (RMS)
The "Composite EVM" measurement displays the error between the entire measurement signal and the ideal reference signal in present. The error is averaged over all
channels for different slots. A bar diagram with EVM values versus slots is used. The
Composite EVM measurement covers the entire signal during the entire observation
time.
Remote command:
CALC:FEED "XTIM:CDP:ERR:MACC", see chapter 8.2.2, "CALCulate:FEED subsys-
tem", on page 113
Peak Code Domain Error
"Peak Code Domain Error" display mode determines the maximum of the code domain
error values for a given slot and for all codes. This display is a bar diagram over slots.
The unit is dB. The Peak Code Domain Error measurement covers the entire signal
and the entire observation time.
Remote command:
CALC:FEED "XTIM:CDP:ERR:PCD", see chapter 8.2.2, "CALCulate:FEED subsys-
tem", on page 113
EVM vs Chip
For the Meas Interval "Slot" (see "Demod Settings" on page 51), the Error Vector Magnitude (EVM) is displayed for all chips of the slected slot.
For the Meas Interval "Halfslot" (see "Demod Settings" on page 51), the EVM is displayed for the chips of one half slot. The selected slot/halfslot can be varied. Possible
entries are 0 to 14 for "Slot" and 0 to 29 for "Halfslot".
The EVM is calculated as the root of the squared difference between the received and
reference signal. The reference signal is estimated out of the channel configurations of
all active channels. The EVM is given in percent referred to the square root of the
mean power of the reference signal.
where:
56Operating Manual 1176.7590.02 ─ 03.1
R&S® FSV-K73
Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
EVM
k
s
k
x
k
k index number of the evaluated chip
N number of chips at each CPICH slot
n index number for mean power calculation of reference signal
vector error of the chip EVM of chip number k
complex chip value of received signal
complex chip value of reference signal
Remote command:
CALC:FEED "XTIM:CDP:CHIP:EVM", see chapter 8.2.2, "CALCulate:FEED subsys-
tem", on page 113
Mag Error vs Chip
For the Meas Interval "Slot" (see "Demod Settings" on page 51), the magnitude error is
displayed for all chips of the selected slot. For the Meas Interval "Halfslot" (see
"Demod Settings" on page 51), the magnitude error is displayed for the chips of one
half slot. The selected slot/halfslot can be varied. Possible entries are 0 to 14 for "Slot"
and 0 to 29 for "Halfslot".
The magnitude error is calculated as the difference between the magnitudes of the
received and reference signal. The reference signal is estimated out of the channel
configurations of all active channels. The magnitude error is given in percent referred
to the square root of the mean power of the reference signal.
where:
MAG
k
s
k
x
k
k index number of the evaluated chip
N number of chips at each CPICH slot
n index number for mean power calculation of reference signal
magnitude error of chip number k
complex chip value of received signal
complex chip value of reference signal
Remote command:
CALC:FEED "XTIM:CDP:CHIP:MAGN", see chapter 8.2.2, "CALCulate:FEED sub-
system", on page 113
57Operating Manual 1176.7590.02 ─ 03.1
R&S® FSV-K73
Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
Phase Error vs Chip
For the Meas Interval "Slot" (see "Demod Settings" on page 51), the phase error is displayed for all chips of the selected slot. For the Meas Interval "Halfslot" (see "Demod
Settings" on page 51), the phase error is displayed for the chips of one half slot. The
selected slot/halfslot can be varied. Possible entries are 0 to 14 for "Slot" and 0 to 29
for "Halfslot".
The phase error is calculated as the difference between the phases of the received
and reference signal. The reference signal is estimated out of the channel configurations of all active channels. The magnitude error is given in grad ranging from -180° to
180°.
where:
PHI
k
s
k
x
k
k index number of the evaluated chip
N number of chips at each CPICH slot
φ(x) phase calculation of a complex value
phase error of chip number k
complex chip value of received signal
complex chip value of reference signal
Remote command:
CALC:FEED "XTIM:CDP:CHIP:PHAS", see chapter 8.2.2, "CALCulate:FEED sub-
system", on page 113
Composite Constellation
The "Composite Const" measurement analyzes the entire signal for one single slot. For
large numbers of channels to analyze the results will superimpose. In that case the
benefit of this measurement is limited (senseless).
In "Composite Const" measurement the constellation points of the 1536 Chips for the
specified slot are displayed. This data is determined inside the DSP even before the
channel search. I.e. it is not possible to assign constellation points to channels. The
constellation points are displayed normalized with respect to the total power.
Remote command:
CALC:FEED "XTIM:CDP:COMP:CONS", see chapter 8.2.2, "CALCulate:FEED sub-
system", on page 113
Power vs Slot
The "Power vs Slot" display mode indicates the power of the selected code channel
depending on the slot number. The power of the selected channel (marked red in the
CDP diagram) is displayed versus all slots of a frame of the 3GPP FDD UE signal. The
softkey is only valid if one frame of the 3GPP signal is analyzed.
Beginning at the start of the 3GPP FDD UE frame, 15 or 30 successive slots are displayed, depending on the value of the "SLOT RES" softkey. The power is shown in
absolute scaling.
58Operating Manual 1176.7590.02 ─ 03.1
R&S® FSV-K73
Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
It is not only possible to select a code channel in the CDP diagram, but also to mark a
slot in the power-versus-slot diagram. Marking is done by entering the slot number.
The selected slot is marked in red. For more detailed displays, the marked slot of the
channel is used (see "SLOT #" entry in the information area above the diagram).
Modifying a slot number has the following effects:
●
The CDP diagram in the upper half of the display is updated referred to the entered
slot number.
●
All results that depend on the selected slot are recalculated for selected channel.
The relevant graphics are updated.
Remote command:
CALC:FEED "XTIM:CDP:PVSL", see chapter 8.2.2, "CALCulate:FEED subsystem",
on page 113
Symbol Magnitude Error
The "Symbol Magnitude Error" is calculated analogous to symbol EVM. The result of
calculation is one symbol magnitude error value for each symbol of the slot of a special
channel. Positive values of symbol magnitude error indicate a symbol magnitude that is
larger than the expected ideal value; negative symbol magnitude errors indicate a symbol magnitude that is less than the ideal one.
The symbol magnitude error is the difference of the magnitude of the received symbol
and that of the reference symbol, related to the magnitude of the reference symbol.
Remote command:
CALC:FEED "XTIM:CDP:SYMB:EVM:MAGN", see chapter 8.2.2, "CALCulate:FEED
subsystem", on page 113
Symbol Phase Error
The "Symbol Phase Error" is calculated analogous to symbol EVM. The result of calculation is one symbol phase error value for each symbol of the slot of a special channel.
Positive values of symbol phase error indicate a symbol phase that is larger than the
expected ideal value; negative symbol phase errors indicate a symbol phase that is
less than the ideal one.
Remote command:
CALC:FEED "XTIM:CDP:SYMB:EVM:PHAS", see chapter 8.2.2, "CALCulate:FEED
subsystem", on page 113
Result Summary
The "Result Summary" display mode selects the numerical display of all results.
Three different tables are available, depending if the corresponding window is a full
screen, a split screen or a quarter screen window. The full screen display mode shows
the same results as the split screen window, but with a bigger font. In the quarter
screen window, only the most important results are displayed on the screen.
The frame number and the slot number are always displayed in the "Global Results"
header. It indicates the slot for which the measurement is performed. The entry is only
valid if one frame of the 3GPP signal is analyzed. The analysis is performed either on a
complete slot or a half slot.
59Operating Manual 1176.7590.02 ─ 03.1
R&S® FSV-K73
Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
Table 7-1: Global Results
Total Power: Displays the total signal power (average power of total evaluated 3GPP FDD
UE slot).
Chip Rate Error: Displays the chip rate error in the frame to analyze in ppm.
As a result of a high chip rate error symbol errors arise and the CDP measurement is possibly not synchronized to the 3GPP FDD UE signal. The result is
valid even if the synchronization of the analyzer and signal failed.
IQ Offs/Imbalance: DC offset and IQ imbalance of the signal in the selected slot in %
Composite EVM/Rho: Composite EVM: The difference between the test signal and the ideal reference
signal in the selected slot (see "Composite EVM (RMS)" on page 56 ).
Rho: Quality paramter RHO for each slot.
No of Active Chan: Indicates the number of active channels detected in the signal in the selected
slot. Both the detected data channels and the control channels are considered
active channels.
Carrier Freq Error: Displays the frequency error in the selected slot referred to the center fre-
quency of the analyzer. The absolute frequency error is the sum of the analyzer
and DUT frequency error.
Differences of more than 1 kHz between transmitter and receiver frequency
impair the synchronization of the CDP measurement. For this reason, the transmitter and receiver should be synchronized (see chapter Getting Started).
Trigger to Frame: This result displays the timing offset from the beginning of the recorded signal
section to the start of the analyzed 3GPP FDD UE frame. In the case of triggered data collection, this timing offset is identical with the timing offset of frame
trigger (+ trigger offset) – frame start. In the case of failure of the synchronization of the analyzer and 3GPP FDD UE signal, the value of Trigger to Frame is
not significant.
Avg Power Intact Chan The power in the code domain of all inactive channels is averaged to give the
user an overview on the difference between active and inactive channels.
Pk CDE (30 ksps) The Pk CDE measurement specifies a projection of the difference between the
test signal and the ideal reference signal onto the selected spreading factor in
the selected slot. The spreading factor onto which projection is made is shown
beneath the measurement result.
Avg. RCDE (4 PAM) Average Relative Code Domain Error over all channels detected with 4 PAM in
the selected frame.
Table 7-2: Channel Results
Symbol Rate: Symbol rate at which the channel is transmitted.
No of Pilot Bits: Indicates the number of pilot bits detected in the control channel.
Symbol EVM: Peak or average of the results of the error vector magnitude measurement. The
measurement provides information on the EVM of the channel (marked red) in
the CDP diagram in the slot (marked red) of the power-versus slot diagram at
the symbol level.
Chan Power Abs: Channel power, absolute
Timing Offset: Offset between the start of the first slot in the channel and the start of the ana-
lyzed 3GPP FDD UE frame.
Channel Slot No: The channel slot number is obtained by combining the value of the selected
CPICH and the channel's timing offset.
60Operating Manual 1176.7590.02 ─ 03.1
R&S® FSV-K73
Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
Modulation Type: Indicates the modulation type of the selected channel. Valid entries are BPSK I
for channels on branch I, BPSK Q for channels on branch Q and NONE for
inactive channels.
Chan Power Rel: Channel relative (referred to the total power of the signal)
Symbol EVM: Peak or average of the results of the error vector magnitude measurement. The
measurement provides information on the EVM of the channel (marked red) in
the CDP diagram in the slot (marked red) of the power-versus slot diagram at
the symbol level.
RCDE Relative Code Domain Error for the complete frame of the selected channel.
Remote command:
CALC:FEED "XTIM:CDP:ERR:SUMM", see chapter 8.2.2, "CALCulate:FEED subsys-
tem", on page 113
Query of results:
CALCulate<n>:MARKer<m>:FUNCtion:WCDPower:MS:RESult? on page 131
Code Domain Error Power
"Code Domain Error Power" is the difference in power between the measured and his
ideal signal. The unit is dB. There are no other units for the y-axis.
Remote command:
CALC:FEED "XTIM:CDP:ERR:PCD", see chapter 8.2.2, "CALCulate:FEED subsys-
tem", on page 113
Channel Table
The "Code Domain Channel Table" display mode shows the channel assignment table.
The channel assignment table can contain a maximum of 512 entries, corresponding to
the 256 codes that can be assigned within the class of spreading factor 256, both I and
Q components.
The upper part of the table indicates the DPCCH channel that has to be present in
every signal to be analyzed. Furthermore there are additional control channels used in
HSDPA and HSUPA signals. These channels (HSDPCCH and EDPCCH) are also displayed in the upper part of the table.
The lower part of the table indicates the data channels (DPDCH and E-DPDCH) that
are contained in the signal. As specified in 3GPP, the channel table can contain up to 6
DPDCHs or up to 4 E-DPDCHs. The channels are in descending order according to
symbol rates and within a symbol rate in ascending order according to the channel
numbers. Therefore, the unassigned codes are always to be found at the end of the
table.
Physical channels used in 3GPP UPLINK signals according to Release 99 specification:
DPCCH The Dedicated Physical Control Channel is used to synchronize the signal. It carries
pilot symbols and is expected in the Q branch at code class 8 with code number 0.
The channel is displayed in the upper part of the table.
DPDCH The Dedicated Physical Data Channel is used to carry UPLINK data from the UE to
the BS. The code allocation depends on the total required symbol rate. The following
table represents the possible configurations of DPCH spreading factors and code
allocation.
61Operating Manual 1176.7590.02 ─ 03.1
R&S® FSV-K73
Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
HSDPCCH The High Speed Dedicated Physical Control Channel (for HS-DCH) is used to carry
control information (CQI/ACK/NACK) for downlink high speed data channels (HSDCH). It is used in HSDPA signal setup. The data rate is fixed to 15ksps. The code
allocation depends on the number of active DPCH and is described in the table
below. This control channel is displayed in the upper part of the channel table. The
HS-DPCCH can be switched on or of at for a duration of 1/5 frame = 3 slots = 2ms.
Power control is applicable too.
EDPCCH The Enhanced Dedicated Physical Control Channel is used to carry control informa-
tion for uplink high speed data channels (EDPDCH). It is used in HSUPA signal
setup. The data rate is fixed to 15ksps. This control channel is displayed in the upper
part of the channel table.
EDPDCH The Enhanced Dedicated Physical Data Channel is used to carry UPLINK data for
high speed channels (EDPDCH). It is used in HSUPA signal setup. The data rate
and code allocation depends on the number of DPDCH and HS-DPCCH (refer to
table below). This data channel is displayed in the lower part of the channel table.
The following parameters of these channels are determined by the CDP measurement:
Chan Type Type of channel (active channels only).
Ch. SF Number of channel spreading code (0 to [spreading factor])
Sym Rate [ksps] Symbol rate at which the channel is transmitted (15 ksps to 960 ksps)
Stat Status display. Codes that are not assigned are marked as inactive chan-
nels.
TFCI Indication whether the data channel uses TFCI symbols.
PilotL [Bits] Number of pilot bits of the channel (only valid for the control channel
DPCCH).
Pwr Abs [dBm]/Pwr Rel
[dBm]
T Offs [Chips] Timing offset. Offset between the start of the first slot of the channel and
Indication of the absolute and relative channel power (referred to the
CPICH or the total power of the signal).
the start of the analyzed 3GPP FDD UE frame.
In CODE CHAN "AUTO SEARCH" mode, a data channel is designated as active if its
power has a minimum value compared to the total power of the signal and if a minimum signal/noise ratio is maintained within the channel.
In CODE CHAN "PREDEFINED" mode, each data channel that is included in the user
defined channel table is considered to be active.
In the R&S FSV–K73 the display configuration can be set to show quarter screens. In
such a case the channel table is reduced to: Channel, Code SF, State and Power Abs
Remote command:
CALC:FEED "XTIM:CDP:ERR:CTAB", see chapter 8.2.2, "CALCulate:FEED subsys-
tem", on page 113
62Operating Manual 1176.7590.02 ─ 03.1
R&S® FSV-K73
Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
Power vs Symbol
The "Power vs. Symbol" measurement shows the power over the symbol number for
the selected channel and the selected slot. The power is not averaged here. The trace
is drawn using a histogram line algorithm, i.e. only vertical and horizontal lines, no
diagonal, linear Interpolation (polygon interpolation). Surfaces are NOT filled. This
measurement displays Power versus Symbol for one single channel and for one single
slot.
Remote command:
CALC:FEED "XTIM:CDP:PVSY", see chapter 8.2.2, "CALCulate:FEED subsystem",
on page 113
Symbol Constellation
The "Symbol Const" measurement shows QPSK or BPSK modulated signals of the
selected channel and the selected slot. QPSK constellation points are located on the
diagonals (not x and y-axis) of the constellation diagram. BPSK constellation points are
always on the x-axis. If possible the display should use more than just 1 pixel per
value, as in the minimum case only 12 symbols are available. This improves the visibility.
Remote command:
CALC:FEED "XTIM:CDP:SYMB:CONS", see chapter 8.2.2, "CALCulate:FEED sub-
system", on page 113
Symbol EVM
The "Symbol EVM" display mode shows the error between the measured signal and
the ideal reference signal in percent for the selected channel and the selected slot. A
trace over all symbols of a slot is drawn. The number of symbols is in the range from
12 (min) to 384 (max). It depends on the symbol rate of the channel.
Remote command:
CALC:FEED "XTIM:CDP:SYMB:EVM", see chapter 8.2.2, "CALCulate:FEED subsys-
tem", on page 113
Bitstream
The "Bitstream" measurement displays the demodulated bits of a selected channel for
a given slot. Depending on the symbol rate the number of symbols within a slot can
vary from 12 (min) to 384 (max). For QPSK modulation a symbol consists of 2 Bits (I
and Q). For BPSK modulation a symbol consists of 1 Bit (only I used).
Remote command:
CALC:FEED "XTIM:CDP:BSTR", see chapter 8.2.2, "CALCulate:FEED subsystem",
on page 113
63Operating Manual 1176.7590.02 ─ 03.1
R&S® FSV-K73
Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
Freq Err vs Slot
To reduce the overall span of "Frequency Err vs Slot", the difference between the frequency error of the corresponding slot to the frequency error of the first (zero) slot is
calculated for each value to be displayed. This helps eliminate a static frequency offset
of the whole signal to achieve a better display of a real time-depending frequency
curve.
Remote command:
CALC:FEED "XTIM:CDP:FVSL", see chapter 8.2.2, "CALCulate:FEED subsystem",
on page 113
Phase Discontinuity vs Slot
The "Phase Discontinuity vs Slot" is calculated according to 3GPP specifications. The
phase calculated for each slot is interpolated to both ends of the slot using the frequency shift of that slot. The difference between the phase interpolated for the beginning of one slot and the end of the preceding slot is displayed as the phase discontinuity of that slot.
Remote command:
CALC:FEED "XTIM:CDP:PSVS", see chapter 8.2.2, "CALCulate:FEED subsystem",
on page 113
7.1.4 Softkeys of the Frequency Menu – FREQ key (R&S FSV–K73)
The FREQ key opens a submenu to change the measurement frequency.
Some softkey functions are not available in CDP mode. Refer to the description of the
FREQ key in the base unit for information on the other softkeys available for RF measurements.
Center........................................................................................................................... 64
CF Stepsize...................................................................................................................64
Frequency Offset...........................................................................................................65
Center
Opens an edit dialog box to enter the center frequency. The allowed range of values
for the center frequency depends on the frequency span.
span > 0: span
span = 0: 0 Hz ≤ f
f
and span
max
/2 ≤ f
min
center
are specified in the data sheet.
min
center
≤ f
max
≤ f
max
– span
min
/2
Remote command:
[SENSe:]FREQuency:CENTer on page 190
CF Stepsize
Opens an edit dialog box to enter a fixed step size for the center frequency.
64Operating Manual 1176.7590.02 ─ 03.1
R&S® FSV-K73
Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
The step size defines the value by which the center frequency is increased or
decreased when the arrow keys are pressed. When you use the rotary knob, the center frequency changes in steps of 10% of the "Center Frequency Stepsize".
This softkey is available for code domain and power vs time measurements.
Remote command:
[SENSe:]FREQuency:CENTer:STEP on page 190
Frequency Offset
Opens an edit dialog box to enter a frequency offset that shifts the displayed frequency
range by the specified offset.
The softkey indicates the current frequency offset. The allowed values range from
-100 GHz to 100 GHz. The default setting is 0 Hz.
Remote command:
[SENSe:]FREQuency:OFFSet on page 191
7.1.5 Softkeys of the Amplitude Menu – AMPT key (R&S FSV–K73)
The AMPT key opens a submenu to set the level.
Some softkey functions are not available in CDP mode. Refer to the description of the
AMPT key in the base unit for information on the other softkeys available for RF measurements.
Ref Level.......................................................................................................................65
Scaling.......................................................................................................................... 66
└ Ref Value........................................................................................................ 66
└ Y per Div......................................................................................................... 66
└ Ref Value Position.......................................................................................... 66
Preamp On/Off..............................................................................................................66
RF Atten Manual/Mech Att Manual............................................................................... 66
RF Atten Auto/Mech Att Auto........................................................................................67
El Atten On/Off..............................................................................................................67
El Atten Mode (Auto/Man).............................................................................................67
Ref Level Offset............................................................................................................ 68
Input (AC/DC)................................................................................................................68
Ref Level
Opens an edit dialog box to enter the reference level in the current unit (dBm, dBµV,
etc).
The reference level is the maximum value the AD converter can handle without distortion of the measured value. Signal levels above this value will not be measured correctly, which is indicated by the "IFOVL" status display.
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RLEVel on page 209
65Operating Manual 1176.7590.02 ─ 03.1
R&S® FSV-K73
Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
Scaling
Opens a submenu to define the amplitude scaling type.
Ref Value ← Scaling
The "Ref Value" softkey opens an edit dialog box to adjust the reference value.
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RVALue on page 210
Y per Div ← Scaling
The "Y PER DIV" softkey opens an edit dialog box to change the range per division in
the result diagram. The range is the length for one section of the y axis.
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:PDIVision on page 209
Ref Value Position ← Scaling
The "Ref Value Position" softkey opens an edit dialog box to adjust the position the reference value of the y-axis (0 – 100 %). 100 % is at the top of the screen, 0 % is at the
bottom of the screen.
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RPOSition on page 210
Preamp On/Off
Switches the preamplifier on and off.
If option R&S FSV-B22 is installed, the preamplifier is only active below 7 GHz.
If option R&S FSV-B24 is installed, the preamplifier is active for all frequencies.
This function is not available for input from the R&S Digital I/Q Interface (option
R&S FSV-B17).
Remote command:
INPut:GAIN:STATe on page 218
RF Atten Manual/Mech Att Manual
Opens an edit dialog box to enter the attenuation, irrespective of the reference level. If
electronic attenuation is activated (option R&S FSV-B25 only; "El Atten Mode Auto"
softkey), this setting defines the mechanical attenuation.
The mechanical attenuation can be set in 10 dB steps.
The RF attenuation can be set in 5 dB steps (with option R&S FSV-B25: 1 dB steps).
The range is specified in the data sheet. If the current reference level cannot be set for
the set RF attenuation, the reference level is adjusted accordingly.
This function is not available for input from the R&S Digital I/Q Interface (option
R&S FSV-B17).
The RF attenuation defines the level at the input mixer according to the formula:
level
mixer
= level
– RF attenuation
input
Note: As of firmware version 1.63, the maximum mixer level allowed is 0 dBm. Mixer
levels above this value may lead to incorrect measurement results, which are indicated
by the "OVLD" status display. The increased mixer level allows for an improved signal,
but also increases the risk of overloading the instrument!
Remote command:
INPut:ATTenuation on page 212
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Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
RF Atten Auto/Mech Att Auto
Sets the RF attenuation automatically as a function of the selected reference level.
This ensures that the optimum RF attenuation is always used. It is the default setting.
This function is not available for input from the R&S Digital I/Q Interface (option
R&S FSV-B17).
Remote command:
INPut:ATTenuation:AUTO on page 212
El Atten On/Off
This softkey switches the electronic attenuator on or off. This softkey is only available
with option R&S FSV-B25.
When the electronic attenuator is activated, the mechanical and electronic attenuation
can be defined separately. Note however, that both parts must be defined in the same
mode, i.e. either both manually, or both automatically.
This function is not available for input from the R&S Digital I/Q Interface (option
R&S FSV-B17).
●
To define the mechanical attenuation, use the RF Atten Manual/Mech Att Manual
or RF Atten Auto/Mech Att Auto softkeys.
●
To define the electronic attenuation, use the El Atten Mode (Auto/Man) softkey.
Note: This function is not available for stop frequencies (or center frequencies in zero
span) >7 GHz. In this case, the electronic and mechanical attenuation are summarized
and the electronic attenuation can no longer be defined individually. As soon as the
stop or center frequency is reduced below 7 GHz, this function is available again.
When the electronic attenuator is switched off, the corresponding RF attenuation mode
(auto/manual) is automatically activated.
Remote command:
INPut:EATT:AUTO on page 217
El Atten Mode (Auto/Man)
This softkey defines whether the electronic attenuator value is to be set automatically
or manually. If manual mode is selected, an edit dialog box is opened to enter the
value. This softkey is only available with option R&S FSV-B25, and only if the electronic attenuator has been activated via the El Atten On/Off softkey.
Note: This function is not available for stop frequencies (or center frequencies in zero
span) >7 GHz. In this case, the electronic and mechanical attenuation are summarized
and the electronic attenuation can no longer be defined individually. As soon as the
stop or center frequency is reduced below 7 GHz, electronic attenuation is available
again. If the electronic attenuation was defined manually, it must be re-defined.
The attenuation can be varied in 1 dB steps from 0 to 30 dB. Other entries are rounded
to the next lower integer value.
To re-open the edit dialog box for manual value definition, select the "Man" mode
again.
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Code Domain Analyzer Measurements (K73)
If the defined reference level cannot be set for the given RF attenuation, the reference
level is adjusted accordingly and the warning "Limit reached" is output.
Remote command:
INPut:EATT:AUTO on page 217
INPut:EATT on page 216
Ref Level Offset
Opens an edit dialog box to enter the arithmetic level offset. This offset is added to the
measured level irrespective of the selected unit. The scaling of the y-axis is changed
accordingly. The setting range is ±200 dB in 0.1 dB steps.
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RLEVel:OFFSet on page 210
Input (AC/DC)
Toggles the RF input of the R&S FSVR between AC and DC coupling.
This function is not available for input from the R&S Digital I/Q Interface (option
R&S FSV-B17).
Remote command:
INPut:COUPling on page 213
7.1.6 Softkeys of the Sweep Menu – SWEEP key (R&S FSV–K73)
The menu of the SWEEP key contains options to switch between single measurement
and continuous measurement and to control individual measurements.
Some softkey functions are not available in CDP mode. Refer to the description of the
SWEEP key in the base unit for information on the other softkeys available for RF
measurements.
In Code Domain Analyzer mode, the following functions are available in the submenu:
Continuous Sweep........................................................................................................68
Single Sweep................................................................................................................ 69
Continue Single Sweep.................................................................................................69
Sweep Count.................................................................................................................69
Continuous Sweep
Sets the continuous sweep mode: the sweep takes place continuously according to the
trigger settings. This is the default setting.
The trace averaging is determined by the sweep count value (see the "Sweep Count"
softkey, "Sweep Count" on page 69).
Remote command:
INIT:CONT ON, see INITiate<n>:CONTinuous on page 223
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Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
Single Sweep
Sets the single sweep mode: after triggering, starts the number of sweeps that are
defined by using the Sweep Count softkey. The measurement stops after the defined
number of sweeps has been performed.
Remote command:
INIT:CONT OFF, see INITiate<n>:CONTinuous on page 223
Continue Single Sweep
Repeats the number of sweeps set by using the Sweep Count softkey, without deleting
the trace of the last measurement.
This is particularly of interest when using the trace configurations "Average" or "Max
Hold" to take previously recorded measurements into account for averaging/maximum
search.
Remote command:
INITiate<n>:CONMeas on page 223
Sweep Count
Opens an edit dialog box to enter the number of sweeps to be performed in the single
sweep mode. Values from 0 to 32767 are allowed. If the values 0 or 1 are set, one
sweep is performed. The sweep count is applied to all the traces in a diagram.
If the trace configurations "Average", "Max Hold" or "Min Hold" are set, the sweep
count value also determines the number of averaging or maximum search procedures.
In continuous sweep mode, if sweep count = 0 (default), averaging is performed over
10 sweeps. For sweep count =1, no averaging, maxhold or minhold operations are performed.
Remote command:
[SENSe:]SWEep:COUNt on page 193
7.1.7 Softkeys of the Trigger Menu – TRIG key (R&S FSV–K73)
The TRIG key opens the following submenu.
The following softkey functions are available for CDA measurements.
For RF measurements, see the description for the base unit.
Trigger Source Free Run.............................................................................................. 69
Trigger Source External................................................................................................ 70
Frequency Mask............................................................................................................70
Trigger Polarity..............................................................................................................70
Trigger Offset................................................................................................................ 70
Trigger Source Free Run
The start of a sweep is not triggered. Once a measurement is completed, another is
started immediately.
Remote command:
TRIG:SOUR IMM, see TRIGger<n>[:SEQuence]:SOURce on page 221
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Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
Trigger Source External
Defines triggering via a TTL signal at the "EXT TRIG/GATE IN" input connector on the
rear panel.
An edit dialog box is displayed to define the external trigger level.
Remote command:
TRIG:SOUR EXT, see TRIGger<n>[:SEQuence]:SOURce on page 221
Frequency Mask
Activates the frequency mask trigger and opens the dialog box to set up a frequency
mask for the frequency mask trigger.
For more information see chapter 6.3, "Working with the Frequency Mask Trigger",
on page 26.
Remote command:
see chapter 8.2.6.4, "CALCulate:MASK Subsystem", on page 152
Trigger Polarity
Sets the polarity of the trigger source.
The sweep starts after a positive or negative edge of the trigger signal. The default set-
ting is "Pos". The setting applies to all modes with the exception of the "Free Run" and
"Time" mode.
"Pos"
Level triggering: the sweep is stopped by the logic "0" signal and
restarted by the logical "1" signal after the gate delay time has
elapsed.
"Neg"
Edge triggering: the sweep is continued on a "0" to "1" transition for
the gate length duration after the gate delay time has elapsed.
Remote command:
TRIGger<n>[:SEQuence]:SLOPe on page 221
[SENSe:]SWEep:EGATe:POLarity on page 193
Trigger Offset
Opens an edit dialog box to enter the time offset between the trigger signal and the
start of the sweep.
offset > 0: Start of the sweep is delayed
offset < 0: Sweep starts earlier (pre-trigger)
Only possible for span = 0 (e.g. I/Q Analyzer mode) and gated trigger
switched off
Maximum allowed range limited by the sweep time:
pretrigger
When using the R&S Digital I/Q Interface (R&S FSV-B17) with I/Q Analyzer mode, the maximum range is limited by the number of pretrigger
samples.
See the R&S Digital I/Q Interface(R&S FSV-B17) description in the base
unit.
= sweep time
max
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Code Domain Analyzer Measurements (K73)
In the "External" or "IF Power" trigger mode, a common input signal is used for both
trigger and gate. Therefore, changes to the gate delay will affect the trigger delay (trigger offset) as well.
Remote command:
TRIGger<n>[:SEQuence]:HOLDoff[:TIME] on page 220
7.1.8 Softkeys of the Trace Menu – TRACE key (R&S FSV–K73)
The TRACE key is used to configure the data acquisition for measurement and the
analysis of the measurement data.
The following chapter describes all softkeys available in the "Trace" menu in "3GPP
FDD UE" Mode for Code Domain Analysis measurements.
For RF measurements, see the description for the base unit.
Clear Write.................................................................................................................... 71
Max Hold.......................................................................................................................71
Min Hold........................................................................................................................71
Average.........................................................................................................................72
View.............................................................................................................................. 72
Clear Write
Overwrite mode: the trace is overwritten by each sweep. This is the default setting.
All available detectors can be selected.
Remote command:
DISP:TRAC:MODE WRIT, see DISPlay[:WINDow<n>]:TRACe<t>:MODE
on page 207
Max Hold
The maximum value is determined over several sweeps and displayed. The
R&S FSVR saves the sweep result in the trace memory only if the new value is greater
than the previous one.
The detector is automatically set to "Positive Peak".
This mode is especially useful with modulated or pulsed signals. The signal spectrum
is filled up upon each sweep until all signal components are detected in a kind of envelope.
This mode is not available for statistics measurements.
Remote command:
DISP:TRAC:MODE MAXH, see DISPlay[:WINDow<n>]:TRACe<t>:MODE
on page 207
Min Hold
The minimum value is determined from several measurements and displayed. The
R&S FSVR saves the smallest of the previously stored/currently measured values in
the trace memory.
The detector is automatically set to "Negative Peak".
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Code Domain Analyzer Measurements (K73)
This mode is useful e.g. for making an unmodulated carrier in a composite signal visible. Noise, interference signals or modulated signals are suppressed whereas a CW
signal is recognized by its constant level.
This mode is not available for statistics measurements.
Remote command:
DISP:TRAC:MODE MINH, see DISPlay[:WINDow<n>]:TRACe<t>:MODE
on page 207
Average
The average is formed over several sweeps. The Sweep Count determines the number
of averaging procedures.
All available detectors can be selected. If the detector is automatically selected, the
sample detector is used (see chapter 6.4.3, "Detector Overview", on page 32).
This mode is not available for statistics measurements.
Remote command:
DISP:TRAC:MODE AVER, see DISPlay[:WINDow<n>]:TRACe<t>:MODE
on page 207
View
The current contents of the trace memory are frozen and displayed.
Note: If a trace is frozen, the instrument settings, apart from level range and reference
level (see below), can be changed without impact on the displayed trace. The fact that
the displayed trace no longer matches the current instrument setting is indicated by the
icon on the tab label.
If the level range or reference level is changed, the R&S FSVR automatically adapts
the measured data to the changed display range. This allows an amplitude zoom to be
made after the measurement in order to show details of the trace.
Remote command:
DISP:TRAC:MODE VIEW, see DISPlay[:WINDow<n>]:TRACe<t>:MODE
on page 207
7.1.9 Softkeys of the Marker Menu – MKR key (R&S FSV–K73)
The MKR key opens a submenu for the marker settings.
Markers are not available for the following result diagrams:
●
Result Summary
●
Channel Table
In all other result diagrams up to four markers can be activated.
The following softkeys are available for CDA measurements.
For RF measurements, see the description for the base unit.
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Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
Marker 1/2/3/4...............................................................................................................73
Marker Norm/Delta........................................................................................................73
Marker Zoom.................................................................................................................73
All Marker Off................................................................................................................ 73
Marker 1/2/3/4
Selects the corresponding marker and activates it.
Marker 1 is always a normal marker. After Marker 2 to 4 have been switched on, they
are delta markers that are referenced to Marker 1. These markers can be converted
into markers with absolute value displays using the "Marker Norm/Delta" softkey.
When Marker 1 is the active marker, pressing the "Marker Norm/Delta" softkey
switches on an additional delta marker. Pressing the "Marker 1" to "Marker 4" softkey
again switches the corresponding marker off.
Remote command:
CALCulate<n>:MARKer<m>[:STATe] on page 125
CALCulate<n>:MARKer<m>:X on page 126
CALCulate<n>:MARKer<m>:Y on page 128
CALCulate<n>:DELTamarker<m>[:STATe] on page 139
CALCulate<n>:DELTamarker<m>:X on page 140
CALCulate<n>:DELTamarker<m>:X:RELative? on page 141
CALCulate<n>:DELTamarker<m>:Y on page 141
Marker Norm/Delta
Changes the active marker to a normal (norm) or delta marker (with respect to marker
1).
Remote command:
CALCulate<n>:MARKer<m>[:STATe] on page 125
CALCulate<n>:DELTamarker<m>[:STATe] on page 139
Marker Zoom
Activates or deactivates the zoom for the current active marker. With the zoom function, more details of the measurement signal can be seen. This softkey can only be
selected if at least one of the markers is activated.
Remote command:
CALCulate<n>:MARKer<m>:FUNCtion:ZOOM on page 133
All Marker Off
Switches all markers off. It also switches off all functions and displays that are associated with the markers/delta markers.
Remote command:
CALCulate<n>:MARKer<m>:AOFF on page 122
7.1.10 Softkeys of the Marker To Menu – MKR-> key (R&S FSV–K73)
The MKR-> key opens a submenu for marker functions. The menu is not available for
the all result displays.
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Code Domain Analyzer Measurements (K73)
The following softkeys are available for CDA measurements.
For RF measurements, see the description for the base unit.
Select 1/2/3/4/∆.............................................................................................................74
Peak..............................................................................................................................74
Next Peak......................................................................................................................74
Next Peak Mode............................................................................................................74
CPICH...........................................................................................................................75
PCCPCH.......................................................................................................................75
Min................................................................................................................................ 75
Next Min........................................................................................................................75
Next Min Mode..............................................................................................................75
Select 1/2/3/4/∆
Selects the normal marker or the delta marker and activates the marker. "∆" stands for
delta marker 1.
CALCulate<n>:MARKer<m>[:STATe] on page 125
CALCulate<n>:MARKer<m>:X on page 126
CALCulate<n>:MARKer<m>:Y on page 128
Peak
Sets the active marker/delta marker to the highest maximum of the trace.
Remote command:
CALCulate<n>:MARKer<m>:MAXimum[:PEAK] on page 123
Next Peak
Sets the active marker/delta marker to the next maximum of the selected trace.
Remote command:
CALCulate<n>:MARKer<m>:MAXimum:NEXT on page 122
CALCulate<n>:DELTamarker<m>:MAXimum:NEXT on page 137
Next Peak Mode
Selects the mode of the Next Peak softkey.
Three settings are available:
"<"
"abs"
Sets the active marker/delta marker to the next maximum left to the
marker of the selected trace.
Sets the active marker/delta marker to the next lower maximum of the
selected trace.
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Code Domain Analyzer Measurements (K73)
">"
Remote command:
CALC:MARK:MAX:LEFT (<): CALCulate<n>:MARKer<m>:MAXimum:LEFT
on page 122
CALCulate<n>:DELTamarker<m>:MAXimum:LEFT on page 137
CALC:MARK:MAX:RIGH (>): CALCulate<n>:MARKer<m>:MAXimum:RIGHt
on page 123
CALCulate<n>:DELTamarker<m>:MAXimum:RIGHt on page 138
CALC:DELT:MAX:NEXT (abs): CALCulate<n>:MARKer<m>:MAXimum:NEXT
on page 122
CALCulate<n>:DELTamarker<m>:MAXimum:NEXT on page 137
CPICH
The "CPICH" softkey sets the marker to the CPICH channel. The softkey is only available for R&S FSV-K72.
CALCulate<n>:MARKer<m>:FUNCtion:CPICh on page 129
CALCulate<n>:MARKer<m>:Y on page 128
PCCPCH
Sets the marker to the PCCPCH channel.
Remote command:
CALCulate<n>:MARKer<m>:FUNCtion:PCCPch on page 129
CALCulate<n>:MARKer<m>:Y on page 128
Sets the active marker/delta marker to the next maximum right to the
marker of the selected trace.
Min
Sets the active marker/delta marker to the minimum of the selected trace.
Remote command:
CALCulate<n>:MARKer<m>:MINimum[:PEAK] on page 124
Next Min
Sets the active marker/delta marker to the next minimum of the selected trace.
Remote command:
CALCulate<n>:MARKer<m>:MINimum:NEXT on page 124
CALCulate<n>:DELTamarker<m>:MINimum:NEXT on page 138
Next Min Mode
Sets the mode for the Next Min softkey.
Three settings are available:
"<"
"abs"
Sets the active marker/delta marker to the next minimum left to the
marker of the selected trace.
Sets the active marker/delta marker to the next higher minimum of
the selected trace.
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Code Domain Analyzer Measurements (K73)
">"
Sets the active marker/delta marker to the next minimum right to the
marker of the selected trace.
Remote command:
CALC:MARK:MIN:LEFT (>): CALCulate<n>:MARKer<m>:MINimum:LEFT
on page 123
CALCulate<n>:DELTamarker<m>:MINimum:LEFT on page 138
CALC:MARK:MIN:RIGH (>): CALCulate<n>:MARKer<m>:MINimum:RIGHt
on page 125
CALCulate<n>:DELTamarker<m>:MINimum:RIGHt on page 139
CALC:MARK:MIN:NEXT (abs): CALCulate<n>:MARKer<m>:MINimum:NEXT
on page 124
CALCulate<n>:DELTamarker<m>:MINimum:NEXT on page 138
7.1.11 Softkeys of the Auto Set Menu – AUTO SET Key (R&S FSV–K73)
The AUTOSET key opens a menu to configure automatic settings.
This chapter describes the softkeys available for CDA measurements.
For RF measurements, see the description for the base unit.
Auto All..........................................................................................................................76
Auto Level..................................................................................................................... 76
Auto Scrambling Code.................................................................................................. 77
Settings......................................................................................................................... 77
└ Meas Time Manual......................................................................................... 77
└ Meas Time Auto..............................................................................................77
└ Upper Level Hysteresis...................................................................................77
└ Lower Level Hysteresis...................................................................................77
Auto All
Performs all automatic settings.
●
"Auto Level" on page 76
●
"Auto Scrambling Code" on page 77
Remote command:
[SENSe:]ADJust:ALL on page 184
Auto Level
Defines the optimal reference level for the current measurement automatically.
The measurement time for automatic leveling can be defined using the Settings soft-
key.
Remote command:
[SENSe:]ADJust:LEVel on page 185
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Code Domain Analyzer Measurements (K73)
Auto Scrambling Code
This softkey starts a calculation on the recorded signal with all scrambling codes. The
scrambling code that leads to the highest signal power is chosen as the new scrambling code.
Remote command:
[SENSe:]CDPower:LCODe:SEARch:[IMMediate]? on page 174
Settings
Opens a submenu to define settings for automatic leveling.
Possible settings are:
●
"Meas Time Manual" on page 77
●
"Meas Time Auto" on page 77
Meas Time Manual ← Settings
Opens an edit dialog box to enter the duration of the level measurement in seconds.
The level measurement is used to determine the optimal reference level automatically
(see the "Auto Level" softkey, "Auto Level" on page 76). The default value is 1 ms.
Remote command:
[SENSe:]ADJust:CONFigure:LEVel:DURation on page 185
Meas Time Auto ← Settings
The level measurement is used to determine the optimal reference level automatically
(see the Auto Level softkey).
This softkey resets the level measurement duration for automatic leveling to the default
value of 100 ms.
Upper Level Hysteresis ← Settings
Defines an upper threshold the signal must exceed before the reference level is automatically adjusted when the "Auto Level" function is performed.
Remote command:
[SENSe:]ADJust:CONFiguration:HYSTeresis:UPPer on page 184
Lower Level Hysteresis ← Settings
Defines a lower threshold the signal must exceed before the reference level is automatically adjusted when the "Auto Level" function is performed.
Remote command:
[SENSe:]ADJust:CONFiguration:HYSTeresis:LOWer on page 184
7.1.12 Softkeys of the Input/Output Menu for CDA Measurements
The following chapter describes all softkeys available in the "Input/Output" menu for
CDA measurements. For RF measurements, see chapter 7.2.6.6, "Softkeys of the
Input/Output Menu for RF Measurements", on page 106.
Input (AC/DC)................................................................................................................78
Noise Source.................................................................................................................78
Signal Source................................................................................................................78
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Code Domain Analyzer Measurements (K73)
└ Input Path........................................................................................................78
└ Connected Device...........................................................................................78
└ Input Sample Rate.......................................................................................... 79
└ Full Scale Level...............................................................................................79
└ Level Unit........................................................................................................79
└ Adjust Reference Level to Full Scale Level.................................................... 79
Digital IQ Info................................................................................................................ 79
EXIQ..............................................................................................................................80
└ TX Settings..................................................................................................... 80
└ RX Settings.....................................................................................................81
└ Send To.......................................................................................................... 81
└ Firmware Update............................................................................................ 81
└ R&S Support...................................................................................................81
└ DigIConf..........................................................................................................81
Input (AC/DC)
Toggles the RF input of the R&S FSVR between AC and DC coupling.
This function is not available for input from the R&S Digital I/Q Interface (option
R&S FSV-B17).
Remote command:
INPut:COUPling on page 213
Noise Source
Switches the supply voltage for an external noise source on or off. For details on connectors refer to the R&S FSVR Quick Start Guide, "Front and Rear Panel" chapter.
Remote command:
DIAGnostic<n>:SERVice:NSOurce on page 223
Signal Source
Opens a dialog box to select the signal source.
For "Digital Baseband (I/Q)", the source can also be configured here.
Input Path ← Signal Source
Defines whether the "RF Radio Frequency" or the "Digital IQ" input path is used for
measurements. "Digital IQ" is only available if option R&S FSV-B17 (R&S Digital I/Q
Interface) is installed.
Note: Note that the input path defines the characteristics of the signal, which differ significantly between the RF input and digital input.
Remote command:
INPut:SELect on page 218
Connected Device ← Signal Source
Displays the name of the device connected to the optional R&S Digital I/Q Interface
(R&S FSV-B17) to provide Digital IQ input. The device name cannot be changed here.
The device name is unknown.
Remote command:
INPut:DIQ:CDEVice on page 213
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Code Domain Analyzer Measurements (K73)
Input Sample Rate ← Signal Source
Defines the sample rate of the digital I/Q signal source. This sample rate must correspond with the sample rate provided by the connected device, e.g. a generator.
Remote command:
INPut:DIQ:SRATe on page 216
Full Scale Level ← Signal Source
The "Full Scale Level" defines the level that should correspond to an I/Q sample with
the magnitude "1".
The level can be defined either in dBm or Volt.
Remote command:
INPut:DIQ:RANGe[:UPPer] on page 215
Level Unit ← Signal Source
Defines the unit used for the full scale level.
Remote command:
INPut:DIQ:RANGe[:UPPer]:UNIT on page 215
Adjust Reference Level to Full Scale Level ← Signal Source
If enabled, the reference level is adjusted to the full scale level automatically if any
change occurs.
Remote command:
INPut:DIQ:RANGe:COUPling on page 214
Digital IQ Info
Displays a dialog box with information on the digital I/Q input and output connection via
the optional R&S Digital I/Q Interface (R&S FSV-B17), if available. The information
includes:
●
Device identification
●
Used port
●
(Maximum) digital input/output sample rates and maximum digital input/output
transfer rates
●
Status of the connection protocol
●
Status of the PRBS descewing test
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Configuration of 3GPP FDD UE Measurements
Code Domain Analyzer Measurements (K73)
For details see "Interface Status Information" in "Instrument Functions - R&S Digital I/Q
Interface (Option R&S FSV-B17)" in the description of the base unit.
Remote command:
INPut:DIQ:CDEVice on page 213
EXIQ
Opens a configuration dialog box for an optionally connected R&S EX-IQ-BOX and a
submenu to access the main settings quickly.
Note: The EX-IQ-Box functionality is not supported for R&S FSVR models
1321.3008Kxx.
If the optional R&S DigIConf software is installed, the submenu consists only of one
key to access the software. Note that R&S DigIConf requires a USB connection
(not LAN!) from the R&S FSVR to the R&S EX-IQ-BOX in addition to the R&S Digital I/Q Interface connection. R&S DigIConf version 2.10 or higher is required.
For typical applications of the R&S EX-IQ-BOX see also the description of the R&S
Digital I/Q Interface (R&S FSV-B17) in the base unit manual.
For details on configuration see the "R&S®Ex I/Q Box - External Signal Interface Module Manual".
For details on installation and operation of the R&S DigIConf software, see the
"R&S®EX-IQ-BOX Digital Interface Module R&S®DigIConf Software Operating Manual".
TX Settings ← EXIQ
Opens the "EX-IQ-BOX Settings" dialog box to configure the R&S FSVR for digital output to a connected device ("Transmitter" Type).
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Code Domain Analyzer Measurements (K73)
RX Settings ← EXIQ
Opens the "EX-IQ-BOX Settings" dialog box to configure the R&S FSVR for digital
input from a connected device ("Receiver" Type).
Send To ← EXIQ
The configuration settings defined in the dialog box are transferred to the R&S EX-IQBOX.
Firmware Update ← EXIQ
If a firmware update for the R&S EX-IQ-BOX is delivered with the R&S FSVR firmware,
this function is available. In this case, when you select the softkey, the firmware update
is performed.
R&S Support ← EXIQ
Stores useful information for troubleshooting in case of errors.
This data is stored in the C:\R_S\Instr\user\Support directory on the instru-
ment.
If you contact the Rohde&Schwarz support to get help for a certain problem, send
these files to the support in order to identify and solve the problem faster.
DigIConf ← EXIQ
Starts the optional R&S DigIConf application. This softkey is only available if the
optional software is installed.
To return to the R&S FSVR application, press any key on the front panel. The application is displayed with the "EXIQ" menu, regardless of which key was pressed.
For details on the R&S DigIConf application, see the "R&S®EX-IQ-BOX Digital Interface Module R&S®DigIConf Software Operating Manual".
Note: If you close the R&S DigIConf window using the "Close" icon, the window is
minimized, not closed.
If you select the "File > Exit" menu item in the R&S DigIConf window, the application is
closed. Note that in this case the settings are lost and the EX-IQ-BOX functionality is
no longer available until you restart the application using the "DigIConf" softkey in the
R&S FSVR once again.
Remote command:
Remote commands for the R&S DigIConf software always begin with SOURce:EBOX.
Such commands are passed on from the R&S FSVR to the R&S DigIConf automatically which then configures the R&S EX-IQ-BOX via the USB connection.
All remote commands available for configuration via the R&S DigIConf software are
described in the "R&S®EX-IQ-BOX Digital Interface Module R&S®DigIConf Software
Operating Manual".
Example 1:
SOURce:EBOX:*RST
SOURce:EBOX:*IDN?
Result:
"Rohde&Schwarz,DigIConf,02.05.436 Build 47"
Example 2:
SOURce:EBOX:USER:CLOCk:REFerence:FREQuency 5MHZ
Defines the frequency value of the reference clock.
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Configuration of 3GPP FDD UE Measurements
RF Measurements
7.2 RF Measurements
7.2.1 Output Power Measurements....................................................................................... 82
7.2.2 Spectrum Emission Mask..............................................................................................82
7.2.3 Adjacent Channel Power (ACLR)..................................................................................83
7.2.4 Occupied Bandwidth..................................................................................................... 84
7.2.5 CCDF............................................................................................................................ 84
7.2.6 Softkeys and Menus for RF Measurements (K73)........................................................ 85
7.2.6.1 Softkeys of the Frequency Menu.................................................................................. 85
7.2.6.2 Softkeys of the Span Menu for RF Measurements....................................................... 88
7.2.6.3 Softkeys of the Amplitude Menu................................................................................... 90
7.2.6.4 Softkeys of the Bandwidth Menu...................................................................................96
7.2.6.5 Softkeys of the Sweep Menu...................................................................................... 103
7.2.6.6 Softkeys of the Input/Output Menu for RF Measurements..........................................106
7.2.1 Output Power Measurements
The R&S FSVR measures the unweighted RF signal power in a bandwidth of:
The power is measured in zero span mode (time domain) using a digital channel filter
of 5 MHz in bandwidth. According to the 3GPP standard, the measurement bandwidth
(5 MHz) is slightly larger than the minimum required bandwidth of 4.7 MHz. The bandwidth is displayed numerically below the screen.
Remote: CONFigure:WCDPower:MS:MEASurement on page 164
7.2.2 Spectrum Emission Mask
The measurement Spectrum Emission Mask is the determination of the power of the
3GPP FDD UE signal in defined offsets from the carrier and compares the power values with a spectral mask specified by 3GPP.
This measurement ist identical to the Spectrum Emission Mask measurement of the
base unit.
By entering the measurement, the configuration to measure the 3GPP standard will be
loaded.
The following user-specific settings are not modified on the first access following presetting:
●
Reference Level, Reference Level Offset
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RF Measurements
●
Center Frequency, Frequency Offset
●
Input Attenuation, Mixer Level
●
All trigger settings
SCPI command: CONFigure:WCDPower:MS:MEASurement on page 164
7.2.3 Adjacent Channel Power (ACLR)
Selecting of Adjacent Channel Power (ACLR) activates the adjacent channel power
measurement in the default setting according to 3GPP specifications (adjacent channel
leakage ratio). The R&S FSVR measures the channel power and the relative power of
the adjacent channels and of the alternate channels. The results are displayed below
the screen.
The following user-specific settings are not modified on the first access following presetting:
●
Reference Level, Reference Level Offset
●
Center Frequency, Frequency Offset
●
Input Attenuation, Mixer Level
●
All trigger settings
Pressing the Adjacent Channel Power softkey activates the analyzer mode with
defined settings:
CHAN PWR/ACP CP/ACP ON
CP/ACP STANDARD W-CDMA 3GPP FWD
CP/ACP CONFIG NO. OF ADJ CHAN 2
To restore adapted measurement parameters, the following level parameters are
saved on exiting and are set again on re-entering this measurement:
Level Parameters
●
RBW, VBW
●
Sweep time
●
SPAN
●
NO OF ADJ. CHANNELS
●
FAST ACP MODUS
For further details about the ACP measurements refer to "Settings of CP/ACLR Test
Parameters" of the base unit.
CONFigure:WCDPower:MS:MEASurement on page 164
Query of results:
CALCulate<n>:MARKer<m>:FUNCtion:POWer:RESult? on page 129
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RF Measurements
7.2.4 Occupied Bandwidth
The Occupied Bandwidth softkey activates the measurement of the bandwidth that the
signal occupies.
The occupied bandwidth is defined as the bandwidth in which – in default settings -99
% of the total signal power is to be found. The percentage of the signal power to be
included in the bandwidth measurement can be changed.
The occupied bandwidth and the frequency markers are output in the marker info field
at the top right edge of the screen as OBW.
The following user-specific settings are not modified on the first access following presetting:
●
Reference Level, Reference Level Offset
●
Center Frequency, Frequency Offset
●
Input Attenuation, Mixer Level
●
All trigger settings
Pressing the Occupied Bandwidth softkey activates the analyzer mode with defined
settings:
OCCUPIED BANDWIDTH
TRACE1 DETECTOR SAMPLE
To restore adapted measurement parameters, the following level parameters are
saved on exiting and are set again on re-entering this measurement:
Level Parameters
●
RBW, VBW
●
Sweep time
●
SPAN
For further details about the Occupied Bandwidth measurements refer to the description in the base unit.
Remote: CONFigure:WCDPower:MS:MEASurement on page 164
Query of results:
Remote: CALCulate<n>:MARKer<m>:FUNCtion:POWer:RESult? on page 129
7.2.5 CCDF
The CCDF softkey starts a measurement of the distribution function of the signal amplitudes (complementary cumulative distribution function). The CCDF and the Crest factor are displayed. For the purposes of this measurement, a signal section of user-definable length is recorded continuously in the zero span, and the distribution of the signal
amplitudes is evaluated.
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RF Measurements
The following user-specific settings are not modified on the first access following presetting:
●
Reference Level, Reference Level Offset
●
Center Frequency, Frequency Offset
●
Input Attenuation, Mixer Level
●
All trigger settings
Pressing the CCDF softkey activates the analyzer mode with defined settings:
CCDF
TRACE1 DETECTOR SAMPLE
BW RES BW MANUAL 10 MHz
VIDEO BW MANUAL 5 MHz
To restore adapted measurement parameters, the following level parameters are
saved on exiting and are set again on re-entering this measurement:
Level Parameters
●
RBW
●
NO OF SAMPLES
For further details about the CCDF measurements refer to the description in the base
unit.
CONFigure:WCDPower:MS:MEASurement on page 164
or
CALCulate<n>:STATistics:CCDF[:STATe] on page 160
Query of results:
CALCulate<n>:MARKer<m>:X on page 126
CALCulate<n>:STATistics:RESult<Trace> on page 161
7.2.6 Softkeys and Menus for RF Measurements (K73)
The following chapter describes the softkeys and menus available for RF measurements in 3GPP FDD UE base station tests.
All menus not described here are the same as for the base unit, see the description
there.
7.2.6.1 Softkeys of the Frequency Menu
The following chapter describes all softkeys available in the "Frequency" menu. It is
possible that your instrument configuration does not provide all softkeys. If a softkey is
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RF Measurements
only available with a special option, model or (measurement) mode, this information is
provided in the corresponding softkey description.
Center........................................................................................................................... 86
CF Stepsize...................................................................................................................86
└ 0.1*Span (span > 0)........................................................................................86
└ 0.1*RBW (span > 0)........................................................................................87
└ 0.5*Span (span > 0)........................................................................................87
└ 0.5*RBW (span > 0)........................................................................................87
└ x*Span (span > 0)...........................................................................................87
└ x*RBW (span > 0)........................................................................................... 87
└ =Center...........................................................................................................87
└ =Marker...........................................................................................................88
└ Manual............................................................................................................ 88
Start...............................................................................................................................88
Stop...............................................................................................................................88
Frequency Offset...........................................................................................................88
Center
Opens an edit dialog box to enter the center frequency. The allowed range of values
for the center frequency depends on the frequency span.
span > 0: span
span = 0: 0 Hz ≤ f
f
and span
max
/2 ≤ f
min
center
are specified in the data sheet.
min
center
≤ f
max
≤ f
max
– span
min
/2
Remote command:
[SENSe:]FREQuency:CENTer on page 190
CF Stepsize
Opens a submenu to set the step size of the center frequency.
The step size defines the value by which the center frequency is increased or
decreased when the arrow keys are pressed. When you use the rotary knob the center
frequency changes in steps of 10% of the "Center Frequency Stepsize".
The step size can be set to a fraction of the span (span > 0) or a fraction of the resolution bandwidth (span = 0) or it can be set to a fixed value manually.
Apart from the =Center, =Marker and Manual softkeys, the other softkeys are displayed depending on the selected frequency span.
This softkey is available for RF measurements.
0.1*Span (span > 0) ← CF Stepsize
Sets the step size for the center frequency to 10 % of the span.
Remote command:
FREQ:CENT:STEP:LINK SPAN, see [SENSe:]FREQuency:CENTer:STEP:LINK
on page 190
FREQ:CENT:STEP:LINK:FACT 10PCT, see [SENSe:]FREQuency:CENTer:STEP:
LINK:FACTor on page 191
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RF Measurements
0.1*RBW (span > 0) ← CF Stepsize
Sets the step size for the center frequency to 10 % of the resolution bandwidth.
This is the default setting.
Remote command:
FREQ:CENT:STEP:LINK RBW, see [SENSe:]FREQuency:CENTer:STEP:LINK
on page 190
FREQ:CENT:STEP:LINK:FACT 10PCT, see [SENSe:]FREQuency:CENTer:STEP:
LINK:FACTor on page 191
0.5*Span (span > 0) ← CF Stepsize
Sets the step size for the center frequency to 50 % of the span.
Remote command:
FREQ:CENT:STEP:LINK SPAN, see [SENSe:]FREQuency:CENTer:STEP:LINK
on page 190
FREQ:CENT:STEP:LINK:FACT 50PCT, see [SENSe:]FREQuency:CENTer:STEP:
LINK:FACTor on page 191
0.5*RBW (span > 0) ← CF Stepsize
Sets the step size for the center frequency to 50 % of the resolution bandwidth.
Remote command:
FREQ:CENT:STEP:LINK RBW, see [SENSe:]FREQuency:CENTer:STEP:LINK
on page 190
FREQ:CENT:STEP:LINK:FACT 50PCT, see [SENSe:]FREQuency:CENTer:STEP:
LINK:FACTor on page 191
x*Span (span > 0) ← CF Stepsize
Opens an edit dialog box to set the step size for the center frequency as a percentage
(%) of the span.
Remote command:
FREQ:CENT:STEP:LINK SPAN, see [SENSe:]FREQuency:CENTer:STEP:LINK
on page 190
FREQ:CENT:STEP:LINK:FACT 20PCT, see [SENSe:]FREQuency:CENTer:STEP:
LINK on page 190
x*RBW (span > 0) ← CF Stepsize
Opens an edit dialog box to set the step size for the center frequency as a percentage
(%) of the resolution bandwidth. Values between 1 % and 100 % in steps of 1 % are
allowed. The default setting is 10 %.
Remote command:
FREQ:CENT:STEP:LINK RBW, see [SENSe:]FREQuency:CENTer:STEP:LINK
on page 190
FREQ:CENT:STEP:LINK:FACT 20PCT, see [SENSe:]FREQuency:CENTer:STEP:
LINK on page 190
=Center ← CF Stepsize
Sets the step size to the value of the center frequency and removes the coupling of the
step size to span or resolution bandwidth.
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RF Measurements
This function is especially useful for measurements of the signal harmonics. In this
case, each stroke of the arrow key selects the center frequency of another harmonic.
=Marker ← CF Stepsize
Sets the step size to the value of the current marker and removes the coupling of the
step size to span or resolution bandwidth.
This function is especially useful for measurements of the signal harmonics. In this
case, each stroke of the arrow key selects the center frequency of another harmonic.
Manual ← CF Stepsize
Opens an edit dialog box to enter a fixed step size for the center frequency.
Remote command:
[SENSe:]FREQuency:CENTer:STEP on page 190
Start
Opens an edit dialog box to define the start frequency. The following range of values is
allowed:
f
≤ f
≤ f
min
start
f
, f
min
and span
max
max
– span
min
are specified in the data sheet.
min
Remote command:
[SENSe:]FREQuency:STARt on page 192
Stop
Opens an edit dialog box to define the stop frequency. The following range of values
for the stop frequency is allowed:
f
min
f
min
+ span
, f
min
and span
max
≤ f
≤ f
stop
max
are specified in the data sheet.
min
Remote command:
[SENSe:]FREQuency:STOP on page 192
Frequency Offset
Opens an edit dialog box to enter a frequency offset that shifts the displayed frequency
range by the specified offset.
The softkey indicates the current frequency offset. The allowed values range from
-100 GHz to 100 GHz. The default setting is 0 Hz.
Remote command:
[SENSe:]FREQuency:OFFSet on page 191
7.2.6.2 Softkeys of the Span Menu for RF Measurements
The following chapter describes all softkeys available in the "Span" menu for RF measurements, except for "Power" measurements.
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RF Measurements
Span Manual.................................................................................................................89
Sweeptime Manual........................................................................................................89
Full Span.......................................................................................................................89
Last Span......................................................................................................................90
Span Manual
Opens an edit dialog box to enter the frequency span. The center frequency remains
the same when you change the span.
The following range is allowed:
span = 0: 0 Hz
span >0: span
f
and span
max
≤ f
min
are specified in the data sheet.
min
span
≤ f
max
Remote command:
[SENSe:]FREQuency:SPAN on page 192
Sweeptime Manual
Opens an edit dialog box to enter the sweep time.
Sweep time
absolute max. sweep time value: 16000 s
absolute min. sweep time value: zero span: 1 μs
span > 0: depends on device model (refer to data sheet)
Allowed values depend on the ratio of span to RBW and RBW to VBW. For details
refer to the data sheet.
Numeric input is always rounded to the nearest possible sweep time. For rotary knob
or UPARROW/DNARROW key inputs, the sweep time is adjusted in steps either
downwards or upwards.
The manual input mode of the sweep time is indicated by a green bullet next to the
"SWT" display in the channel bar. If the selected sweep time is too short for the
selected bandwidth and span, level measurement errors will occur due to a too short
settling time for the resolution or video filters. In this case, the R&S FSVR displays the
error message "UNCAL" and marks the indicated sweep time with a red bullet.
This softkey is available for RF measurements, but not for CCDF measurements.
Remote command:
SWE:TIME:AUTO OFF, see [SENSe:]SWEep:TIME:AUTO on page 194
[SENSe:]SWEep:TIME on page 193
Full Span
Sets the span to the full frequency range of the R&S FSVR specified in the data sheet.
This setting is useful for overview measurements.
Remote command:
[SENSe:]FREQuency:SPAN:FULL on page 192
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RF Measurements
Last Span
Sets the span to the previous value. With this function e.g. a fast change between
overview measurement and detailed measurement is possible.
Remote command:
-
7.2.6.3 Softkeys of the Amplitude Menu
The following table shows all softkeys available in the "Amplitude" menu. It is possible
that your instrument configuration does not provide all softkeys. If a softkey is only
available with a special option, model or (measurement) mode, this information is provided in the corresponding softkey description.
Ref Level.......................................................................................................................90
Range............................................................................................................................90
└ Range Log 100 dB..........................................................................................91
└ Range Log 50 dB............................................................................................91
└ Range Log 10 dB............................................................................................91
└ Range Log 5 dB..............................................................................................91
└ Range Log 1 dB..............................................................................................92
└ Range Log Manual..........................................................................................92
└ Range Linear %.............................................................................................. 92
└ Range Lin. Unit............................................................................................... 92
Unit................................................................................................................................92
Preamp On/Off..............................................................................................................93
RF Atten Manual/Mech Att Manual............................................................................... 93
RF Atten Auto/Mech Att Auto........................................................................................94
El Atten On/Off..............................................................................................................94
El Atten Mode (Auto/Man).............................................................................................94
Ref Level Offset............................................................................................................ 95
Ref Level Position......................................................................................................... 95
Grid Abs/Rel .................................................................................................................95
Noise Correction........................................................................................................... 95
Input (AC/DC)................................................................................................................96
Input 50 Ω/75 Ω ............................................................................................................96
YIG Filter (On Off).........................................................................................................96
Ref Level
Opens an edit dialog box to enter the reference level in the current unit (dBm, dBµV,
etc).
The reference level is the maximum value the AD converter can handle without distortion of the measured value. Signal levels above this value will not be measured correctly, which is indicated by the "IFOVL" status display.
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RLEVel on page 209
Range
Opens a submenu to define the display range of the level axis.
This softkey and its submenu are available for RF measurements.
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RF Measurements
Range Log 100 dB ← Range
Sets the level display range to 100 dB.
Remote command:
Logarithmic scaling:
DISP:WIND:TRAC:Y:SPAC LOG, see DISPlay[:WINDow<n>]:TRACe<t>:Y:
SPACing on page 211
Display range:
DISP:WIND:TRAC:Y 100DB, see DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]
on page 208
Range Log 50 dB ← Range
Sets the level display range to 50 dB.
Remote command:
Logarithmic scaling:
DISP:WIND:TRAC:Y:SPAC LOG, see DISPlay[:WINDow<n>]:TRACe<t>:Y:
SPACing on page 211
Display range:
DISP:WIND:TRAC:Y 50DB, see DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]
on page 208
Range Log 10 dB ← Range
Sets the level display range to 10 dB.
Remote command:
Logarithmic scaling:
DISP:WIND:TRAC:Y:SPAC LOG, see DISPlay[:WINDow<n>]:TRACe<t>:Y:
SPACing on page 211
Display range:
DISP:WIND:TRAC:Y 10DB, see DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]
on page 208
Range Log 5 dB ← Range
Sets the level display range to 5 dB.
Remote command:
Logarithmic scaling:
DISP:WIND:TRAC:Y:SPAC LOG, see DISPlay[:WINDow<n>]:TRACe<t>:Y:
SPACing on page 211
Display range:
DISP:WIND:TRAC:Y 5DB, see DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]
on page 208
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RF Measurements
Range Log 1 dB ← Range
Sets the level display range to 1 dB.
Remote command:
Logarithmic scaling:
DISP:WIND:TRAC:Y:SPAC LOG, see DISPlay[:WINDow<n>]:TRACe<t>:Y:
SPACing on page 211
Display range:
DISP:WIND:TRAC:Y 1DB, see DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]
on page 208
Range Log Manual ← Range
Opens an edit dialog box to define the display range of a logarithmic level axis manually.
Remote command:
Logarithmic scaling:
DISP:WIND:TRAC:Y:SPAC LOG, see DISPlay[:WINDow<n>]:TRACe<t>:Y:
SPACing on page 211
Display range:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe] on page 208
Range Linear % ← Range
Selects linear scaling for the level axis in %.
The grid is divided into decadal sections.
Markers are displayed in the selected unit ("Unit" softkey). Delta markers are displayed
in % referenced to the voltage value at the position of marker 1. This is the default setting for linear scaling.
Remote command:
DISP:TRAC:Y:SPAC LIN, see DISPlay[:WINDow<n>]:TRACe<t>:Y:SPACing
on page 211
Range Lin. Unit ← Range
Selects linear scaling in dB for the level display range, i.e. the horizontal lines are
labeled in dB.
Markers are displayed in the selected unit ("Unit" softkey). Delta markers are displayed
in dB referenced to the power value at the position of marker 1.
Remote command:
DISP:TRAC:Y:SPAC LDB, see DISPlay[:WINDow<n>]:TRACe<t>:Y:SPACing
on page 211
Unit
Opens the "Unit" submenu to select the unit for the level axis.
The default setting is dBm.
If a transducer is switched on, the softkey is not available.
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RF Measurements
In general, the signal analyzer measures the signal voltage at the RF input. The level
display is calibrated in RMS values of an unmodulated sine wave signal. In the default
state, the level is displayed at a power of 1 mW (= dBm). Via the known input impedance (50 Ω or 75 Ω), conversion to other units is possible. The following units are
available and directly convertible:
●
dBm
●
dBmV
●
dBμV
●
dBμA
●
dBpW
●
Volt
●
Ampere
●
Watt
Remote command:
CALCulate<n>:UNIT:POWer on page 164
Preamp On/Off
Switches the preamplifier on and off.
If option R&S FSV-B22 is installed, the preamplifier is only active below 7 GHz.
If option R&S FSV-B24 is installed, the preamplifier is active for all frequencies.
This function is not available for input from the R&S Digital I/Q Interface (option
R&S FSV-B17).
Remote command:
INPut:GAIN:STATe on page 218
RF Atten Manual/Mech Att Manual
Opens an edit dialog box to enter the attenuation, irrespective of the reference level. If
electronic attenuation is activated (option R&S FSV-B25 only; "El Atten Mode Auto"
softkey), this setting defines the mechanical attenuation.
The mechanical attenuation can be set in 10 dB steps.
The RF attenuation can be set in 5 dB steps (with option R&S FSV-B25: 1 dB steps).
The range is specified in the data sheet. If the current reference level cannot be set for
the set RF attenuation, the reference level is adjusted accordingly.
This function is not available for input from the R&S Digital I/Q Interface (option
R&S FSV-B17).
The RF attenuation defines the level at the input mixer according to the formula:
level
mixer
= level
– RF attenuation
input
Note: As of firmware version 1.63, the maximum mixer level allowed is 0 dBm. Mixer
levels above this value may lead to incorrect measurement results, which are indicated
by the "OVLD" status display. The increased mixer level allows for an improved signal,
but also increases the risk of overloading the instrument!
Remote command:
INPut:ATTenuation on page 212
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RF Measurements
RF Atten Auto/Mech Att Auto
Sets the RF attenuation automatically as a function of the selected reference level.
This ensures that the optimum RF attenuation is always used. It is the default setting.
This function is not available for input from the R&S Digital I/Q Interface (option
R&S FSV-B17).
Remote command:
INPut:ATTenuation:AUTO on page 212
El Atten On/Off
This softkey switches the electronic attenuator on or off. This softkey is only available
with option R&S FSV-B25.
When the electronic attenuator is activated, the mechanical and electronic attenuation
can be defined separately. Note however, that both parts must be defined in the same
mode, i.e. either both manually, or both automatically.
This function is not available for input from the R&S Digital I/Q Interface (option
R&S FSV-B17).
●
To define the mechanical attenuation, use the RF Atten Manual/Mech Att Manual
or RF Atten Auto/Mech Att Auto softkeys.
●
To define the electronic attenuation, use the El Atten Mode (Auto/Man) softkey.
Note: This function is not available for stop frequencies (or center frequencies in zero
span) >7 GHz. In this case, the electronic and mechanical attenuation are summarized
and the electronic attenuation can no longer be defined individually. As soon as the
stop or center frequency is reduced below 7 GHz, this function is available again.
When the electronic attenuator is switched off, the corresponding RF attenuation mode
(auto/manual) is automatically activated.
Remote command:
INPut:EATT:AUTO on page 217
El Atten Mode (Auto/Man)
This softkey defines whether the electronic attenuator value is to be set automatically
or manually. If manual mode is selected, an edit dialog box is opened to enter the
value. This softkey is only available with option R&S FSV-B25, and only if the electronic attenuator has been activated via the El Atten On/Off softkey.
Note: This function is not available for stop frequencies (or center frequencies in zero
span) >7 GHz. In this case, the electronic and mechanical attenuation are summarized
and the electronic attenuation can no longer be defined individually. As soon as the
stop or center frequency is reduced below 7 GHz, electronic attenuation is available
again. If the electronic attenuation was defined manually, it must be re-defined.
The attenuation can be varied in 1 dB steps from 0 to 30 dB. Other entries are rounded
to the next lower integer value.
To re-open the edit dialog box for manual value definition, select the "Man" mode
again.
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Configuration of 3GPP FDD UE Measurements
RF Measurements
If the defined reference level cannot be set for the given RF attenuation, the reference
level is adjusted accordingly and the warning "Limit reached" is output.
Remote command:
INPut:EATT:AUTO on page 217
INPut:EATT on page 216
Ref Level Offset
Opens an edit dialog box to enter the arithmetic level offset. This offset is added to the
measured level irrespective of the selected unit. The scaling of the y-axis is changed
accordingly. The setting range is ±200 dB in 0.1 dB steps.
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RLEVel:OFFSet on page 210
Ref Level Position
Opens an edit dialog box to enter the reference level position, i.e. the position of the
maximum AD converter value on the level axis. The setting range is from -200 to
+200 %, 0 % corresponding to the lower and 100 % to the upper limit of the diagram.
Only available for RF measurements.
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RPOSition on page 210
Grid Abs/Rel
Switches between absolute and relative scaling of the level axis (not available with
"Linear" range).
Only available for RF measurements.
"Abs"
"Rel"
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:MODE on page 209
Noise Correction
If activated, the results are corrected by the instrument's inherent noise, which increases the dynamic range.
"ON"
"OFF"
Absolute scaling: The labeling of the level lines refers to the absolute
value of the reference level. Absolute scaling is the default setting.
Relative scaling: The upper line of the grid is always at 0 dB. The
scaling is in dB whereas the reference level is always in the set unit
(for details on unit settings see the "Unit" softkey).
A reference measurement of the instrument's inherent noise is carried
out. The noise power measured is then subtracted from the power in
the channel that is being examined.
The inherent noise of the instrument depends on the selected center
frequency, resolution bandwidth and level setting. Therefore, the correction function is disabled whenever one of these parameters is
changed. A disable message is displayed on the screen. Noise correction must be switched on again manually after the change.
No noise correction is performed.
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RF Measurements
"AUTO"
Noise correction is performed. After a parameter change, noise correction is restarted automatically and a new correction measurement
is performed.
Remote command:
[SENSe:]POWer:NCORrection on page 183
Input (AC/DC)
Toggles the RF input of the R&S FSVR between AC and DC coupling.
This function is not available for input from the R&S Digital I/Q Interface (option
R&S FSV-B17).
Remote command:
INPut:COUPling on page 213
Input 50 Ω/75 Ω
Uses 50 Ω or 75 Ω as reference impedance for the measured levels. Default setting is
50 Ω.
The setting 75 Ω should be selected if the 50 Ω input impedance is transformed to a
higher impedance using a 75 Ω adapter of the RAZ type (= 25 Ω in series to the input
impedance of the instrument). The correction value in this case is 1.76 dB = 10 log (75
Ω/50 Ω).
All levels specified in this Operating Manual refer to the default setting of the instrument (50 Ω).
This function is not available for input from the R&S Digital I/Q Interface (option
R&S FSV-B17).
Remote command:
INPut:IMPedance on page 218
YIG Filter (On Off)
Activates or deactivates the YIG filter by means of relays or by bypassing the filter.
If the YIG filter at the input of the R&S FSVR is removed from the signal path, you can
use the maximum bandwidth for signal analysis. However, image-frequency rejection is
no longer ensured.
Note that the YIG filter is active only on frequencies greater than 7 GHz. Therefore,
switching the YIG filter on and off has no effect if the frequency is below that value.
INPut:FILTer:YIG[:STATe] on page 217
7.2.6.4 Softkeys of the Bandwidth Menu
The following table shows all softkeys available in the "Bandwidth" menu. It is possible
that your instrument configuration does not provide all softkeys. If a softkey is only
available with a special option, model or (measurement) mode, this information is provided in the corresponding softkey description.
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Configuration of 3GPP FDD UE Measurements
RF Measurements
For Spurious Emission Measurements, the settings are defined in the "Sweep List" dialog, see the description in the base unit.
Bandwidth settings are only available for RF measurements.
Res BW Manual............................................................................................................ 97
Res BW Auto.................................................................................................................97
Video BW Manual......................................................................................................... 98
Video BW Auto..............................................................................................................98
Sweeptime Manual........................................................................................................98
Sweeptime Auto............................................................................................................99
Sweep Type.................................................................................................................. 99
└ Sweep.............................................................................................................99
└ FFT............................................................................................................... 100
└ Auto...............................................................................................................100
└ FFT Filter Mode............................................................................................ 100
└ Auto.................................................................................................... 100
└ Narrow................................................................................................ 100
Coupling Ratio.............................................................................................................100
└ RBW/VBW Sine [1/1].................................................................................... 100
└ RBW/VBW Pulse [.1].................................................................................... 101
└ RBW/VBW Noise [10]................................................................................... 101
└ RBW/VBW Manual........................................................................................101
└ Span/RBW Auto [100]...................................................................................101
└ Span/RBW Manual....................................................................................... 102
└ Default Coupling........................................................................................... 102
Filter Type................................................................................................................... 102
Res BW Manual
Opens an edit dialog box to enter a value for the resolution bandwidth. The available
resolution bandwidths are specified in the data sheet.
For details on the correlation between resolution bandwidth and filter type refer to
chapter 6.4.5, "Selecting the Appropriate Filter Type", on page 34.
Numeric input is always rounded to the nearest possible bandwidth. For rotary knob or
UP/DNARROW key inputs, the bandwidth is adjusted in steps either upwards or downwards.
The manual input mode of the resolution bandwidth is indicated by a green bullet next
to the "RBW" display in the channel bar.
This softkey is available for all RF measurements except for Power measurements.
Remote command:
[SENSe:]BANDwidth|BWIDth[:RESolution]:AUTO on page 187
[SENSe:]BANDwidth|BWIDth[:RESolution] on page 186
Res BW Auto
Couples the resolution bandwidth to the selected span (for span > 0). If you change the
span, the resolution bandwidth is automatically adjusted.
This setting is recommended if you need the ideal resolution bandwidth in relation to a
particular span.
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Configuration of 3GPP FDD UE Measurements
RF Measurements
This softkey is available for measuring the Adjacent Channel Power, the Occupied
Bandwidth and the CCDF.
Remote command:
[SENSe:]BANDwidth|BWIDth[:RESolution]:AUTO on page 187
Video BW Manual
Opens an edit dialog box to enter the video bandwidth. The available video bandwidths
are specified in the data sheet.
Numeric input is always rounded to the nearest possible bandwidth. For rotary knob or
UP/DOWN key inputs, the bandwidth is adjusted in steps either upwards or downwards.
The manual input mode of the video bandwidth is indicated by a green bullet next to
the "VBW" display in the channel bar.
Note: RMS detector and VBW.
If an RMS detector is used, the video bandwidth in the hardware is bypassed. Thus,
duplicate trace averaging with small VBWs and RMS detector no longer occurs. However, the VBW is still considered when calculating the sweep time. This leads to a longer sweep time for small VBW values. Thus, you can reduce the VBW value to achieve
more stable trace curves even when using an RMS detector. Normally, if the RMS
detector is used the sweep time should be increased to get more stable trace curves.
For details on detectors see chapter 6.4.3, "Detector Overview", on page 32.
This softkey is available for measuring the Adjacent Channel Power, the Spectrum
Emission Mask and the Occupied Bandwidth.
Remote command:
[SENSe:]BANDwidth|BWIDth:VIDeo:AUTO on page 189
[SENSe:]BANDwidth|BWIDth:VIDeo on page 189
Video BW Auto
Couples the video bandwidth to the resolution bandwidth. If you change the resolution
bandwidth, the video bandwidth is automatically adjusted.
This setting is recommended if a minimum sweep time is required for a selected resolution bandwidth. Narrow video bandwidths result in longer sweep times due to the longer settling time. Wide bandwidths reduce the signal/noise ratio.
This softkey is available for measuring the Adjacent Channel Power, the Spectrum
Emission Mask and the Occupied Bandwidth.
Remote command:
[SENSe:]BANDwidth|BWIDth:VIDeo:AUTO on page 189
Sweeptime Manual
Opens an edit dialog box to enter the sweep time.
Sweep time
absolute max. sweep time value: 16000 s
absolute min. sweep time value: zero span: 1 μs
span > 0: depends on device model (refer to data sheet)
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Configuration of 3GPP FDD UE Measurements
RF Measurements
Allowed values depend on the ratio of span to RBW and RBW to VBW. For details
refer to the data sheet.
Numeric input is always rounded to the nearest possible sweep time. For rotary knob
or UPARROW/DNARROW key inputs, the sweep time is adjusted in steps either
downwards or upwards.
The manual input mode of the sweep time is indicated by a green bullet next to the
"SWT" display in the channel bar. If the selected sweep time is too short for the
selected bandwidth and span, level measurement errors will occur due to a too short
settling time for the resolution or video filters. In this case, the R&S FSVR displays the
error message "UNCAL" and marks the indicated sweep time with a red bullet.
This softkey is available for RF measurements, but not for CCDF measurements.
Remote command:
SWE:TIME:AUTO OFF, see [SENSe:]SWEep:TIME:AUTO on page 194
[SENSe:]SWEep:TIME on page 193
Sweeptime Auto
Couples the sweep time to the span, video bandwidth (VBW) and resolution bandwidth
(RBW) (not available for zero span). If you change the span, resolution bandwidth or
video bandwidth, the sweep time is automatically adjusted.
The R&S FSVR always selects the shortest sweep time that is possible without falsifying the signal. The maximum level error is < 0.1 dB, compared to using a longer sweep
time.
This softkey is available for measuring the Adjacent Channel Power, the Spectrum
Emission Mask and the Occupied Bandwidth.
Remote command:
[SENSe:]SWEep:TIME:AUTO on page 194
Sweep Type
Opens a submenu to define the sweep type.
This softkey is available for measuring the Signal Power, the Adjacent Channel Power
and the Occupied Bandwidth.
This function is not available in IQ Analyzer mode or for input from the R&S Digital I/Q
Interface (option R&S FSV-B17).
In frequency sweep mode, the analyzer provides several possible methods of sweep-
ing:
●
"Sweep" on page 99
●
"FFT" on page 100 (not available with 5-Pole filters, channel filters or RRC filters,
see chapter 6.4.5, "Selecting the Appropriate Filter Type", on page 34)
●
"Auto" on page 100
Sweep ← Sweep Type
Sets the Sweep Type to standard analog frequency sweep.
In the standard sweep mode, the local oscillator is set to provide the spectrum quasi
analog from the start to the stop frequency.
Remote command:
SWE:TYPE SWE, see [SENSe:]SWEep:TYPE on page 194
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Configuration of 3GPP FDD UE Measurements
RF Measurements
FFT ← Sweep Type
Sets the Sweep Type to FFT mode.
The FFT sweep mode samples on a defined frequency value and transforms it to the
spectrum by fast Fourier transformation (FFT).
FFT is not available when using 5-Pole filters, Channel filters or RRC filters. In this
case, sweep mode is used.
Remote command:
SWE:TYPE FFT, see [SENSe:]SWEep:TYPE on page 194
Auto ← Sweep Type
Automatically sets the fastest available Sweep Type for the current measurement. Auto
mode is set by default.
Remote command:
SWE:TYPE AUTO, see [SENSe:]SWEep:TYPE on page 194
FFT Filter Mode ← Sweep Type
Defines the filter mode to be used for FFT filters by defining the partial span size. The
partial span is the span which is covered by one FFT analysis.
Auto ← FFT Filter Mode ← Sweep Type
The firmware determines whether to use wide or narrow filters to obtain the best measurement results.
Remote command:
[SENSe:]BANDwidth|BWIDth[:RESolution]:FFT on page 187
Narrow ← FFT Filter Mode ← Sweep Type
For an RBW ≤ 10kHz, the FFT filters with the smaller partial span are used. This allows
you to perform measurements near a carrier with a reduced reference level due to a
narrower analog prefilter.
Remote command:
[SENSe:]BANDwidth|BWIDth[:RESolution]:FFT on page 187
Coupling Ratio
Opens a submenu to select the coupling ratios for functions coupled to the bandwidth.
This softkey and its submenu is available for measuring the Adjacent Channel Power,
the Spectrum Emission Mask, the Occupied Bandwidth and the CCDF.
RBW/VBW Sine [1/1] ← Coupling Ratio
Sets the following coupling ratio:
"video bandwidth = resolution bandwidth"
This is the default setting for the coupling ratio resolution bandwidth/video bandwidth.
This is the coupling ratio recommended if sinusoidal signals are to be measured.
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