Tektronix RSA3303B, RSA3308B, RSA3408B User manual
User Manual
RSA3303B, RSA3308B, & RSA3408B Option 28
TD-SCDMA Analysis Software
071-2404-00
This document applies to firmware version 4.0
and above.
www.tektronix.com
Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or
suppliers, and are protected by national copyright laws and internati onal treaty provisions.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes
that in all previously published material. Specifications and price change privileges reserved.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Contacting Tektronix
Tektronix, Inc.
14200 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA
For product information, sales, service, and technical support:
H In North America, call 1-800-833-9200.
H Worldwide, visit www.tektronix.com to find contacts in your area.
Warranty 2
Tektronix warrants that this product will be free from defects in materials and workmanship for a pe riod of one (1) year
from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its option, either
will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the
defective product. Batteries are excluded from this warranty. Parts, modules and replacement products used by Tektronix
for warranty work may be new or reconditioned to like new performance. All replaced parts, modules and products become
the property of Tektronix.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the
warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for
packaging and shipping the defective product to the service center designated by Tektronix, shipping charges prepaid, and
with a copy of customer proof of purchase. Tektronix shall pay for the return of the product to Customer if the shipment is
to a location within the country in which the Tektronix service center is located. Customer shall be responsible for paying
all shipping charges, duties, taxes, and any other charges for products returned to any other locations
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate
maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting
from attempts by personnel other than Tektronix representatives to install, repair or service the product; b) to repair
damage resulting from improper use or connection to incompatible equipment; c) to repair any damage or malfunction
caused by the use of non--Tektronix supplies; or d) to service a product that has been modified or integrated with other
products when the effect of such modification or integration increases the time or difficulty of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY
OTHER WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PAR TICULAR PURPOSE.
TEKTRONIX
EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX
AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS
ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES
ٛF RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND
Table of Contents
Getting Started
Operating Basics
Preface v...................................................
About This Manual v...............................................
Related Manuals vi.................................................
Product Description 1--1..............................................
Functional Overview 2--1.......................................
Accessing a Measurement Function 2--2..................................
Versatile Display Capability 2--2........................................
TD-SCDMA Measurements 2--5.................................
Subframe Summary 2--6..............................................
Modulation Accuracy Measurement 2--9.................................
Code Domain Power Measurement 2--23..................................
Channel Power Measurement 2--33.......................................
OBW Measurement 2--36..............................................
ACLR Measurement 2--39..............................................
Spectrum Emission Mask Measurement 2--43..............................
Timeslot Summary 2--47...............................................
Transmit On/Off Mask 2--51............................................
Symbol Table Display 2--55............................................
Intermodulation Measurement 2--58......................................
Acquisition and Analysis Parameters for Demodulation Measurements 2--61.....
Measurement Parameters for Demodulation Measurements 2--62...............
Editing the Measurement Limits 2--65.............................
Using the Measurement Limits Editor 2--65................................
Saving and Loading Measurement Limits 2--71.............................
Measurement Limit Defaults 2--72.......................................
Appendices
Appendix A: Setting Range A--1.................................
Index
RSA3303B, RSA3308B, & RSA3408B Option 28 User Manual
i
Table of Contents
List of Figures
Figure 2--1: Menu diagram showing measurement functions
available in Option 28 2--1...................................
Figure 2--2: Measurements of same domain interact 2--3.............
Figure 2--3: Instrument capable of displaying multiple domains 2--4...
Figure 2--4: Subframe summary 2--6..............................
Figure 2--5: Modulation accuracy measurement 2--9................
Figure 2--6: Comp. constellation display 2--12.......................
Figure 2--7: Symbol constellation display 2--14......................
Figure 2--8: Symbol EVM display 2--16............................
Figure 2--9: MagErr display 2--18.................................
Figure 2--10: PhaseErr display 2--20...............................
Figure 2--11: Code domain power measurement 2--23.................
Figure 2--12: Code domain power display 2--26......................
Figure 2--13: CDP by subframe display 2--28........................
Figure 2--14: CDP by symbol display 2--29..........................
Figure 2--15: CDP codogram display 2--31..........................
Figure 2--16: Channel power measurement 2--33.....................
Figure 2--17: OBW measurement 2--36.............................
Figure 2--18: ACLR measurement 2--39............................
Figure 2--19: Spectrum emission mask (offset from channel)
measurement 2--43..........................................
Figure 2--20: Spectrum emission mask (inband spurious)
measurement 2--44..........................................
Figure 2--21: Timeslot su mmary 2--47..............................
Figure 2--22: Timeslot summary, display zoomed 2--50................
Figure 2--23: Transmit on/off mask 2--51...........................
Figure 2--24: Zoom to Max Mid-Ramp Power selected 2--54...........
Figure 2--25: Symbol table display 2--55............................
Figure 2--26: Intermodulation measurement 2--58....................
Figure 2--27: Measurement limits editor 2--66.......................
Figure 2--28: Spectrum emission mask measurement limits editor 2--69.
ii
RSA3303B, RSA3308B, & RSA3408B Option 28 User Manual
List of Tables
Table of Contents
Tab l e 2--1: Global demodulation timing parameter settings 2--61......
Table 2--2: Global demodulation measurement parameter settings 2--62
Table 2--3: Measurement limits items 2--66.........................
Table 2--4: Measurement limit items for the spectrum emission
mask measurements 2--69....................................
Table 2--5: Downlink main table default limits 2--72.................
Table 2--6: Uplink main table default limits 2--72....................
Table 2 --7: Downlink SEM offset from channel default limits 2--73.....
Table 2 --8: Uplink SEM offset from channel default limits 2--73.......
Table 2--9: Downlink SEM inband spurious default limits 2--74.......
Table 2--10: Uplink SEM inband spurious default limits 2--74.........
Table A--1: Display format and scale A--1.........................
RSA3303B, RSA3308B, & RSA3408B Option 28 User Manual
iii
Table of Contents
iv
RSA3303B, RSA3308B, & RSA3408B Option 28 User Manual
Preface
About This Manual
This manual provides operating instructions for the RSA3303B, RSA3308B, and
RSA3408B Real-Time Spectrum Analyzer Option 28 TD-SCDMA (Time
Division Synchronous Code Division Multiple Access) analysis software.
Option 28 supports TD-SCDMA as described in the 3GPP Release 4 LCR
Uplink/Downlink (3GPP TS25.142, TS25.102) standard.
This manual supports the following instruments:
H RSA3303B Option 28
H RSA3308B Option 28
H RSA3408B Option 28
This manual is composed of the following chapters:
H Getting Started provides a product description.
H Operating Basics describes the measurement functions added by the option
and explains how to set up the analyzer for each measurement mode.
H Appendices provides additional information about default settings.
The analyzer uses Microsoft Windows XP as the operating system. This manual
does not describe common usage of Windows XP. Refer to your Windows
manuals as necessary .
RSA3303B, RSA3308B, & RSA3408B Option 28 User Manual
v
Preface
Related Manuals
The following related documents are also available:
H RSA3303B & RSA3308B User Manual
(Standard accessory; Tektronix part number 071-2363-XX)
RSA3408B User Manual
(Standard accessory; Tektronix part number 071-2364-XX)
Describes how to install the analyzer and how to work with the menus, and
details the standard functions.
H RSA3000B Series Programmer Manual
(Standard accessory; PDF, Tektronix part number 071-2382-XX)
Contains an alphabetical listing of the programming commands and other
information related to controlling the analyzer over the GPIB interface.
PDF Manual
The RSA3000B Series Programmer Manual (PDF only) is included in the
Documents CD (Tektronix part number 063-4089-XX).
vi
RSA3303B, RSA3308B, & RSA3408B Option 28 User Manual
Getting Started
Getting Started
Product Description
This chapter provides an overview of the capabilities added to the RSA3303B,
RSA3308B, and RSA3408B with Option 28.
The TD-SCDMA standard contains elements of frequency division, time
division, and code division multiple access technologies. Combining these
technologies allows the reuse of frequency channels for uplink and downlink
communication. A single frequency channel is shared between uplink and
downlink, and among users. The use of a single channel is accomplished by
allocating timeslots to each transmit direction and to each user.
The RSA3303B, RSA3308B, and RSA3408B Real-Time Spectrum Analyzer
Option 28 is an analysis software option that adds transmitter measurement
capability for TD-SCDMA uplink and downlink (3GPP TDD LCR) to the
analyzer.
You can perform the following TD-SCDMA measurements:
H Demodulation measurements
H Subframe summary
H Modulation accuracy
H Code domain power
H Timeslot summary
H Transmit on/off mask
H Symbol table
H RF measurements
H Channel power
H OBW (occupied bandwidth)
H ACLR (adjacent channel leakage ratio)
H Spectrum emission mask
H Intermodulation
RSA3303B, RSA3308B, & RSA3408B Option 28 User Manual
1- 1
Getting Started
In addition, the option provides user-defined measurement limits for many
measurement results. Using these measurement limits, you can easily check that
the input signal meets the specification.
1- 2
RSA3303B, RSA3308B, & RSA3408B Option 28 User Manual
Operating Basics
Functional Overview
This chapter provides an overview of the Option 28 measurement functions.
Figure 2--1 shows the measurement functions and how to access each measurement function from the front-panel menu key.
Other option name
(if installed)
Analog Demod
Demod
menu
Digital Demod
Standard...
Standard
menu
TD-SCDMA
Figure 2- 1: Menu diagram showing measurement functions available in Option 28
Measure
menu
Measurement functions
added by Option 28
Subframe Summary
Modulation Accuracy
Code Domain Power
Channel Power
OBW
ACLR
Spectrum Emission Mask
Timeslot Summary
Transmit On/Off Mask
Symbol Table
Intermodulation
RSA3303B, RSA3308B, & RSA3408B Option 28 User Manual
2- 1
Functional Overview
Accessing a Measurement Function
All of the measurement functions available in Option 28 can be selected from the
Demod (demodulation) mode.
Perform the following procedure to access any of the measurement functions:
1. Press the Demod menu key to open the Demod menu.
2. Press the Standard... side key to open the Standard menu.
3. Press the TD-SCDMA side key to select the TD-SCDMA standard and open
the Measure m enu for the standard.
4. Press a side key to select the measurement that you want to perform. If the
desired measurement is not displayed on the current Measure menu, press
the Go to page side key to go to the next Measure menu page.
5. If needed, set the frequency, span, and amplitude of the input signal. Refer to
your instrument user manual for information on how to set frequency, span,
and amplitude.
NOTE. Most TD-SCDMA measurements are optimized for a 2 MHz or 5 MHz
span.
Versatile Display Capability
The display of the RSA3300B series and RSA3408B analyzer with Option 28
provide you with a versatile tool for viewing different aspects of a measurement
domain or viewing two different measurement domains.
When two measurements of the same domain are displayed in the subview and
mainview (such as two views from the modulation accuracy domain), the
measurement markers are linked together.
Placing a measurement view of one domain in the subview and a measurement
display of another domain i n the mainview gives you the ability to monitor both
at the same time.
2- 2
RSA3303B, RSA3308B, & RSA3408B Option 28 User Manual
Functional Overview
Measurements within
same domain interact.
Moving the marker in the
subview moves the marker in
the other two views.
Figure 2- 2: Measurements of same domain interact
RSA3303B, RSA3308B, & RSA3408B Option 28 User Manual
2- 3
Functional Overview
Measurement from code
domain displayed in
subview
Measurement from
modulation accuracy
domain displayed in
mainview
Figure 2- 3: Instrument capable of displaying multiple domains
2- 4
RSA3303B, RSA3308B, & RSA3408B Option 28 User Manual
TD-SCDMA Measurements
This section describes the functions and features of the TD-SCDMA measurements. Each measurement description contains general information about the
measurement, descriptions of the measurement displays, and functions available
through menu selections.
The information is divided into the following subsections:
H Subframe summary
H Modulation accuracy
H Code domain power
H Channel power
H OBW (occupied bandwidth)
H ACLR (adjacent channel leakage ratio)
H Spectrum emission mask (SEM)
H Timeslot summary
H Transmit on/off mask
H Symbol table
H Intermodulation
NOTE. If you are not familiar with the operation of the analyzer, refer to your
instrument user manual before reading this section.
RSA3303B, RSA3308B, & RSA3408B Option 28 User Manual
2- 5
TD-SCDMA Measurements
Subframe Summary
The subframe summary measurement displays a power versus time graph of the
selected subframe, along with all general parameters discovered while analyzing
the subframe. The subframe summary waveform is available whenever subframe
timing can be determined using either DwPts or an external subframe trigger as a
time reference. Figure 2--4 shows an example of the subframe summary.
The measured values for subframe are described the section Subframe Measure-
ment Readouts beginning on page 2--8.
Green bar
represents the
analysis area
Current
timeslot and
link direction
Subframe numerical
readout
NOTE: The subframe marker is linked to overview window. Turn on the overview
marker to see the position of the subframe within the overall acquisition.
Figure 2- 4: Subframe summary
Display Elements
Marker readout
corresponds to the
marker position
Marker
Blue area represents
the selected timeslot
The following information is shown in t he subframe summary measurement
display:
2- 6
H Overview: The overview display area can contain the power versus time or
spectrogram measurement displays.
RSA3303B, RSA3308B, & RSA3408B Option 28 User Manual
TD-SCDMA Measurements
H Subview: The subview display area can contain any of the TD-SCDMA
demodulation measurements or the spectrum display.
H Mainview: The mainview display area displays only the power versus time
graph.
To change the contents in each of the views, use the View Define menu. Refer to
Changing the View Contents on page 2--7 for more information.
Setting the Acquisition
and Analysis Parameters
Setting the Measurement
Parameters
You can set acquisition and analysis parameters for the subframe summary
acquisition by using the Acquisition/Analysis menu. Press the Acquisition/
Analysis key to open the menu. Refer to Acquisition and Analysis Parameters
for Demodulation Measurements, beginning on page 2--61, for a description of
the timing parameter settings.
NOTE. The acquisition and analysis parameters for demodulation measurements
are global settings for all TD-SCDMA demodulation measurements.
You can set the measurement parameters for the subframe summary measurements by using the Meas Setup menu. Press the Meas Setup key to open the
menu. Refer to Measurement Parameters for Demodulation Measurements,
beginning on page 2--62, for a description of the measurement parameters.
NOTE. The measurement parameters for demodulation measurements are global
settings for all TD-SCDMA demodulation measurements. Most of the modulation
parameters and analysis control settings do not take effect until the next run or
analysis cycle.
Changing the View
Contents
RSA3303B, RSA3308B, & RSA3408B Option 28 User Manual
You can change the view contents in the overview and subview using the View
Define menu. Press the View: Define key to open the menu.
H Show Views: Selects the view style on the screen. You can select Single or
Multi. Multi shows all three views and Single expands the display to only
show the view currently selected. Press the Select key to change the selected
view.
H Overview Content...: The overview content display can be changed to
display either the Spectrogram or Waveform (power versus time).
H Subview Content...: The subview content display can be changed to display
any of the TD-SCDMA demodulation measurements or the spectrum
display.
2- 7
TD-SCDMA Measurements
H Mainview Content...: The mainview content display cannot be changed
from Subframe summary.
H Menu Off: Hides the side menu. To display the menu again, press the
MENU side key or View: Define key.
Scale and Format in the
Mainview
You can set the scale for the display using the Scale menu. Press the View:
Scale/Lines key, and then press the View Scale... side key to open the menu.
H Auto Scale (Amplitude): Sets the start value and the scale of the vertical
axis to display the entire waveform.
H Horizontal Scale (s): Sets the scale of the horizontal axis (number of chips
or symbols).
H Horizontal Start (s): Sets the chip number or symbol number of the first
(left) value of the horizontal axis.
H Vertical Scale (dB): Sets the scale of the vertical axis.
H Vertical Stop (dBm): Sets the maximum (top) value of the vertical axis.
H Full Scale: Sets all scale values to their default full-scale value.
H Step Size (Horizontal Start / Vertical Stop): Sets the step size (amount per
click of the general purpose knob) for changes to the Horizontal Start or
Vertical Stop settings.
The step size menu choices only display when selecting the Horizontal Start
or Vertical Stop menus.
Subframe Measurement
Readouts
2- 8
This section describes the measurement readouts displayed in the mainview of
the subframe measurement.
Readout Description
Downlink Pilot (Sync-DL) The code number of the downlink pilot pattern.
Uplink Pilot (Sync-UL) The code number of the uplink pilot pattern.
Scrambling Code The scrambling code.
Switching Point The timeslot switching point.
DwPts Pattern The rotation pattern (None, S1, S2) of the downlink pilot.
Multiframe Position The subframe position (1 to 4) within a multiframe.
DwPts RMS power The RMS power of the downlink pilot.
UpPts RMS power The RMS power of the uplink pilot.
GP RMS power The RMS power in the subframe guard period.
RSA3303B, RSA3308B, & RSA3408B Option 28 User Manual
Modulation Accuracy Measurement
The modulation accuracy measurement measures EVM (Error Vector Magnitude), Rho, magnitude error, phase error, frequency error, I/Q imbalance, and I/Q
offset. Figure 2--5 shows an example of the modulation accuracy measurement.
TD-SCDMA Measurements
Condensed measurement
results displayed when
mainview is not selected
Figure 2- 5: Modulation accuracy measurement
Display Elements
The following elements are shown in the modulation accuracy measurement
display:
H Overview: The overview display area can contain the power versus time or
spectrogram measurement displays.
H Subview: The subview display area can contain any of the TD-SCDMA
demodulation measurements or the spectrum display. Measurement results
typically associated with a measurement are not displayed when the
measurement is displayed in the subview.
H Mainview: The mainview display area can contain one of the modulation
accuracy related measurements along with a condensed set of numerical
RSA3303B, RSA3308B, & RSA3408B Option 28 User Manual
2- 9
TD-SCDMA Measurements
measurement results with a Pass or Fail message (determined by the Limits
settings) for each measurement result. If all measurements pass, PASS is
displayed at the top of the screen. If any measurement fails, FAIL is
displayed at the top of the screen.
To change the contents in each of the views, use the View Define menu. Refer to
Changing the View Contents on page 2--10 for more information.
Setting the Timing
Parameters
Setting the Measurement
Parameters
You can set acquisition and analysis parameters for the modulation accuracy
acquisition by using the Acquisition/Analysis menu. Press the Acquisition/
Analysis key to open the menu. Refer to Acquisition and Analysis Parameters
for Demodulation Measurements, beginning on page 2--61, for a description of
the timing parameter settings.
NOTE. The acquisition and analysis parameters for demodulation measurements
are global settings for all TD-SCDMA demodulation measurements.
You can set the measurement parameters for the modulation accuracy measurements by using the Meas Setup menu. Press the Meas Setup key to open the
menu. Refer to Measurement Parameters for Demodulation Measurements,
beginning on page 2--62, for a description of the measurement parameters.
NOTE. The measurement parameters for demodulation measurements are global
settings for all TD-SCDMA demodulation measurements. Most of the modulation
parameters and analysis control settings do not take effect until the next run or
analysis cycle.
2- 10
Changing the View
Contents
You can change the view contents in the overview, subview, and mainview using
the View Define menu. Press the View: Define to open the menu.
H Show Views: Selects the view style on the screen. You can select Single or
Multi. Multi shows all three views and Single expands the display to only
show the view currently selected. Press the View: Select key to change the
selected view.
H Overview Content...: The overview content display can be changed to
display either the Spectrogram or Waveform (power versus time).
H Subview Content...: The subview content display can be changed to display
any of the TD-SCDMA demodulation measurements or the spectrum
display.
RSA3303B, RSA3308B, & RSA3408B Option 28 User Manual
TD-SCDMA Measurements
H Mainview Content...: The mainview content display can be changed to
display one of the modulation accuracy related measurements with its
numerical measurement results. You can select Composite Constellation,
Symbol Constellation, Symbol Error Vector Magnitude, Magnitude Error, or
Phase Error.
When selecting the mainview , the expanded numerical measurement results
are displayed. (The overview content display is removed.)
A Pass or Fail message for each measurement is displayed if limit testing is
turned on in the Limits menu. If all measurements pass, PASS is displayed at
the top of the screen. If any measurement fails, FAIL is displayed at the top
of the screen.
Refer to Scale and Format in the Mainview, beginning on page 2--12, for
more information about the mainview content selections.
H Menu Off: Hides the side menu. To display the menu again, press the
MENU side key or View: Define key.
RSA3303B, RSA3308B, & RSA3408B Option 28 User Manual
2- 11
TD-SCDMA Measurements
Scale and Format in the
Mainview
This section describes the scale settings and display format in the mainview.
Comp. Constellation Display. When you select Mainview Content from the V iew
Define menu and then select Comp. Constellation from the Mainview Content
submenu, an IQ rectangular graph is displayed showing the I/Q values for all
chips in the current timeslot, including midamble. See Figure 2--6.
The measured values for modulation accuracy are described the section
Modulation Accuracy Measurement Readouts beginning on page 2--21.
Expanded measurement
results displayed when
mainview is selected
Figure 2- 6: Comp. constellation display
Chip number
I/Q values
I/Q rectangular graph
(vector display)
2- 12
RSA3303B, RSA3308B, & RSA3408B Option 28 User Manual
TD-SCDMA Measurements
You can set the scale of the display using the Scale menu. Press the V iew:
Scale/Lines key, and t hen press the View Scale... side key to open the menu.
H Measurement Content...: Selects vector or constellation display.
Vector: Selects vector display. A signal represented with phase and
amplitude is displayed in rectangular (I and Q) coordinates. Each red point
indicates a symbol position on the measured signal and the yellow trace
indicates the locus of the signal between symbols.
Constellation: Selects constellation display. It is the same as the vector
display, except that only symbols of the measured signal are indicated in red,
and the locus between symbols is not shown.
NOTE. I and Q signals are normalized to prevent the scale from changing when
signal attenuation changes.
RSA3303B, RSA3308B, & RSA3408B Option 28 User Manual
2- 13
TD-SCDMA Measurements
Symbol Constellation Display. When you select Mainview Content from the V iew
Define menu and then select Symbol C onstellation from the Mainview Content
submenu, an IQ rectangular graph is displayed showing the constellation for
Data1 and Data2 symbols selected by the currently selected code (set in the Meas
Setup menu). See Figure 2--7.
The measured values for modulation accuracy are described the section
Modulation Accuracy Measurement Readouts beginning on page 2--21.
Expanded measurement
results displayed when
mainview is selected
Figure 2- 7: Symbol constellation display
You can set the scale of the display using the Scale menu. Press the V iew:
Scale/Lines key, and t hen press the View Scale... side key to open the menu.
Symbol number
Selected code
OVSF code
Spreading factor
Modulation type
Vertical scale
Vertical start
Horizontal scale
Horizontal start
2- 14
RSA3303B, RSA3308B, & RSA3408B Option 28 User Manual
Loading...