User Manual
RSA3408A Option 40
3GPP Release 6 (HSUPA) Analysis Software
071-2060-00
This document supports firmware version 3.30 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 international 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 . B o x 5 0 0
Beaverton, OR 97077
USA
For product information, sales, service, and technical support:
In North America, call 1-800-833-9200.
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 period 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. 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, with shipping charges
prepaid. 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 PARTICULAR PURPOSE. TEKTRONIX’
RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND 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.
Table of Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Related Manuals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Getting Started
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Analysis Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Measurement Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Operating Basics
Downlink Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Measurement Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Measurement Setup Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Scale and Format of View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Code Domain Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Power Codogram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Code Power versus Time Slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Code Power versus Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
Symbol Constellation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Symbol EVM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
Symbol Eye Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
Symbol Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
Modulation Accuracy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27
Modulation Accuracy versus Time Slot. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28
Uplink Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31
Measurement Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32
Measurement Setup Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-34
Display Method for HS-DPCCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38
Scale and Format of View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-41
Code Domain Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-46
Power Codogram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-48
Code Power versus Time Slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-50
Code Power versus Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-52
Symbol Constellation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-54
Symbol EVM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-55
Symbol Eye Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-57
Symbol Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-58
Modulation Accuracy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-59
Modulation Accuracy versus Time Slot. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-61
Gain Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-63
RSA3408A Option 40 User Manual
i
Table of Contents
Appendices
Glossary and Index
Appendix A: Scale Setting Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Appendix B: Saving Measurement Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Save Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Saved FIle Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
ii
RSA3408A Option 40 User Manual
List of Figures
List of Figures
Figure 1-1: Measurement menus for the 3GPP-R6 analysis . . . . . . . . . . . . . . . . . 1-5
Figure 2-1: Downlink analysis measurement menu in the Demod mode . . . . . . . 2-3
Figure 2-2: Code domain power measurement example . . . . . . . . . . . . . . . . . . . . 2-6
Figure 2-3: Time slot table (at the lower left of the screen) . . . . . . . . . . . . . . . . 2-13
Figure 2-4: Code domain power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Figure 2-5: Power codogram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Figure 2-6: Code power versus Time slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Figure 2-7: Code domain power versus Symbol . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
Figure 2-8: Symbol constellation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Figure 2-9: Symbol EVM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
Figure 2-10: Symbol eye diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
Figure 2-11: Symbol table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
Figure 2-12: Modulation accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27
Figure 2-13: Modulation accuracy versus Time slot, EVM (rms) . . . . . . . . . . . 2-28
Figure 2-14: Uplink analysis measurement menu in the Demod mode . . . . . . . 2-31
Figure 2-15: Code domain power measurement example . . . . . . . . . . . . . . . . . . 2-33
Figure 2-16: Subframe offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-36
Figure 2-17: HS-DPCCH display method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38
Figure 2-18: HS-DPCCH display method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-39
Figure 2-19: HS-DPCCH display method (symbol table) . . . . . . . . . . . . . . . . . . 2-40
Figure 2-20: View Format setting (code domain power) . . . . . . . . . . . . . . . . . . . 2-44
Figure 2-21: Time slot table (at the lower left of the screen) . . . . . . . . . . . . . . . 2-45
Figure 2-22: Code domain power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-46
Figure 2-23: Power codogram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-48
Figure 2-24: Code power versus Time slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-50
Figure 2-25: Code domain power versus Symbol . . . . . . . . . . . . . . . . . . . . . . . . 2-52
Figure 2-26: Symbol constellation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-54
Figure 2-27: Symbol EVM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-55
Figure 2-28: Symbol eye diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-57
Figure 2-29: Symbol table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-58
Figure 2-30: Modulation accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-59
Figure 2-31: Modulation accuracy versus Time slot, EVM (rms) . . . . . . . . . . . 2-61
Figure 2-32: Gain ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-63
Figure B-1: Setting the time slots to save . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Figure B-2: CSV file example (code domain power measurement) . . . . . . . . . . . B-2
RSA3408A Option 40 User Manual
iii
List of Tables
List of Tables
Table 1-1: Additional functions in Option 40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Table 1-2: 3GPP-R6 downlink transmission parameters . . . . . . . . . . . . . . . . . . . . 1-2
Table 1-3: 3GPP-R6 uplink transmission parameters . . . . . . . . . . . . . . . . . . . . . . 1-3
Table 2-1: Column items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Table 2-2: Vertical scale setting range, Symbol EVM . . . . . . . . . . . . . . . . . . . . . 2-24
Table 2-3: Vertical scale setting range, Modulation accuracy versus Time slot 2-29
Table 2-4: Channel number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-44
Table 2-5: Time-slot table contents selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45
Table 2-6: Vertical scale setting range, Symbol EVM . . . . . . . . . . . . . . . . . . . . . 2-56
Table 2-7: Vertical scale setting range, Modulation accuracy versus Time slot 2-62
Table A-1: Display format and scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
iv
RSA3408A Option 40 User Manual
Preface
About This Manual
Related Manuals
This manual provides operating instructions for the RSA3408A Real-Time
Spectrum Analyzer Option 40 3GPP Release 6 (HSUPA) analysis software.
The manual consists of the following sections:
Getting Started describes the overview of the 3GPP Release 6 analysis.
Operating Basics explains the menu functions and measurement procedures.
Appendices provide additional information about default settings and scale
setting ranges.
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.
PDF Manual
The following documents are also available for the analyzer.
RSA3408A User Manual
(Standard accessory; Tektronix part number 071-1617-XX)
Describes how to install the analyzer and how to work with the menus, and
details the standard functions. Also shows the specifications.
RSA3408A Programmer Manual
(Standard accessory; PDF, Tektronix part number 077-0003-XX)
Contains an alphabetical listing of the programming commands and other
information related to controlling the analyzer over the GPIB interface.
The programmer manual described above is a PDF document (the file size is about
3 MB). The file is stored in this directory on the analyzer hard disk:
C:\Program Files\Tektronix\wca200a\Manuals
Use the USB or LAN interface to copy the file onto your PC. Refer to the
RSA3408A User Manual for information about using the interface.
RSA3408A Option 40 User Manual
v
Preface
vi
RSA3408A Option 40 User Manual
Getting Started
Getting Started
The RSA3408A Option 40 3GPP Release 6 (HSUPA) analysis software enables
modulation analysis of HSUPA (High Speed Uplink Packet Access) signals
defined in 3GPP (3
rd
Generation Partnership Project) Release 6 (“3GPP-R6”).
Measurements can be performed on downlink QPSK and 16QAM or uplink BPSK
signals.
Table 1-1 summarizes the functions added in Option 40 by the measurement modes
of the analyzer.
Table 1-1: Additional functions in Option 40
Measurement mode Additional functions Requirement
S/A (spectrum analysis) None Demod
(modulation analysis)
Time (time analysis) None -
3GPP-R6 downlink analysis
Code domain power
Power codogram
Code power versus Time slot
Code power versus Symbol
EVM versus Time slot
Symbol constellation
Symbol EVM (Error Vector Magnitude)
Symbol eye diagram
Symbol table
Modulation accuracy
Modulation accuracy
3GPP-R6 uplink analysis
Code domain power
Power codogram
Code power versus Time slot
Code power versus Symbol
EVM versus Time slot
Symbol constellation
Symbol EVM (Error Vector Magnitude)
Symbol eye diagram
Symbol table
Modulation accuracy
Modulation accuracy
Gain ratio
versus Time slot
versus Time slot
Option 27
3GPP-R5 analysis
software
Option 23
W-CDMA uplink
analysis software
and
Option 27
3GPP-R5 analysis
software
NOTE.
(for uplink analysis only) and Option 27 3GPP-R5 analysis software as shown in
Table 1-1.
RSA3408A Option 40 User Manual
Option 40 3GPP-R6 analysis software requires Option 23 W-CDMA uplink
1-1
Getting Started
Analysis Definition
The analyzer performs measurements according to 3GPP-R6 specifications.
Downlink Analysis
Table 1-2 shows the 3GPP-R6 downlink transmission parameters for the analyzer.
Table 1-2: 3GPP-R6 downlink transmission parameters
Item Description
Chip rate 3.84 Mcps
Symbol rate 7.5, 15, 30, 60, 120, 240, 480, and 960 ksps
Maximum number of channels 512
Frame structure Time slot: 666.7
Scrambling code Gold code using M series by generator polynomial 18 bits
Channelization code Hierarchical orthogonal code series based on the
combination of chip rate and symbol rate
Modulation method for each channel QPSK or 16QAM
Baseband filter Root-cosine with
Can be set in the range of 0.0001
Measurement Functions.
Code domain power: Measures the power relative to the total power for each
The analyzer has the following measurement functions:
µ
s
α
= 0.22 (default)
≤ α≤
1
channel. Multi-rate is supported and up to 512 channels can be measured.
Code domain power versus Time: Measures the relative power at symbol points
for each channel in time series.
1-2
Power codogram: Measures the code domain power and displays spectrogram
for each slot.
Vector/Constellation: Measures the vector loci and chip points for all signals
as well as constellation at symbol points for each channel.
Modulation accuracy: Measures EVM (Error Vector Magnitude), amplitude
and phase errors, waveform quality, and origin offset for each channel.
Measures PCDE (Peak Code Domain Error), amplitude, frequency, and phase
errors; waveform quality; and origin offset for each time slot.
RSA3408A Option 40 User Manual
Getting Started
Uplink Analysis
Measurement Process.
The following steps show the internal process for the
3GPP-R6 downlink analysis:
1. Perform flatness correction and filtering.
2. Establish the synchronization with P-SCH.
3. Determine the range of scrambling code numbers with S-SCH.
4. Fix the scrambling code number and the phase.
5. Correct the frequency and the phase.
6. Perform high-speed Hadamard transformation.
7. Calculate the power for each symbol on all channels.
The analyzer supports the following types of 3GPP-R6 uplink signals:
DPCCH (Dedicated Physical Control Channel)
DPDCH (Dedicated Physical Data Channel)
HS-DPCCH (Dedicated Physical Control Channel for HS-DSCH
(High Speed Downlink Shared Channel))
E-DPCCH (Enhanced Dedicated Physical Control Channel)
E-DPDCH (Enhanced Dedicated Physical Data Channel)
The analyzer covers the 3GPP-R6 uplink transmission parameters listed in
Tab le 1-3 .
Table 1-3: 3GPP-R6 uplink transmission parameters
Item DPCCH DPDCH HS-DPCCH E-DPCCH E-DPDCH
Chip rate 3.84 Mcps
Symbol rate 15 ksps 15, 30, 60, 120, 240,
480, and 960 ksps
Maximum number
of channels
Frame structure 15 time-slots, 10 ms 15 time-slots, 10 ms 5 sub-frames, 10 ms 5 sub-frames, 10 ms 15 time-slots, 10 ms
Time slot 2560 chips, 667
Scrambling code Long or short. Number: 0 to 16,777,215
Modulation method BPSK
Baseband filter Root-cosine with
16114
Can be set in the range of 0.0001
15 ksps 15 ksps 15, 30, 60, 120, 240,
480, 960, and 1920
ksps
µ
s
α
= 0.22 (default).
≤ α≤
1
RSA3408A Option 40 User Manual
1-3
Getting Started
Measurement Functions.
HS-DPCCH analysis: Measures the HS-DPCCH to detect and display the
The analyzer has the following measurement functions:
ACK/NACK/PRE/POST indicator, DTX (Discontinuous Transmission), and
CQI (Channel Quality Indicator).
E-DPCCH analysis: Measures the E-DPCCH to detect and display the E-TFC
(E-DCH Transport Format Combination) indicator, RSN (Retransmission
Sequence Number), and Happy.
Code domain power: Measures the power relative to the total power for each
channel. Multi-rate is supported and up to 512 channels can be measured.
Power codogram: Measures the code domain power continuously for up to
150 slots (0.1 sec) and displays spectrogram for each slot.
NOTE.
The code domain power and the power codogram can be displayed in the
subview only.
Measurement Process.
The following steps show the internal process for the
3GPP-R6 uplink analysis:
1. Perform flatness correction and filtering.
2. Search for a synchronous point by de-spreading DPCCH.
3. Correct the frequency and phase.
4. Obtain symbols for each channel of DPDCH and DPCCH, and calculate power
for each symbol.
NOTE.
using the frequency and phase to establish synchronization. If the level of DPCCH
or the control part is much lower than (about 1/10
The analyzer de-spreads DPCCH and the control part of an input signal,
th
) the level of the other channels
(DPDCH or the data part), the analysis may not be performed accurately.
1-4
RSA3408A Option 40 User Manual
Measurement Menu
Getting Started
Figure 1-1 shows the measurement menus related to the 3GPP-R6 analysis. The
menu items boxed with solid lines indicate the functions included in Option 40.
MODE
S/A
DEMOD
TIME
Option
27
Standard... 3GPP-R5-DL * Channel Power
3GPP-R5-UL *
Option 40
Standard... 3GPP-R6-DL * Code Domain Power
Measure menu items
ACLR
Spectrum Emission Mask
OBW
EBW
Carrier Frequency
Channel Power
ACLR
Spectrum Emission Mask
OBW
EBW
Carrier Frequency
Power Codogram
Code Power versus Time Slot
Code Power versus Symbol
EVM versus Time Slot
Symbol Constellation
Symbol EVM
Symbol Eye Diagram
Symbol Table
Modulation Accuracy
Mod Acc versus Time Slot
Figure 1-1: Measurement menus for the 3GPP-R6 analysis
RSA3408A Option 40 User Manual
3GPP-R6-UL * Code Domain Power
Power Codogram
Code Power versus Time Slot
Code Power versus Symbol
EVM versus Time Slot
Symbol Constellation
Symbol EVM
Symbol Eye Diagram
Symbol Table
Modulation Accuracy
Mod Acc versus Time Slot
Gain Ratio
CCDF
(Standard)
* DL and UL represent downlink and uplink, respectively.
1-5
Getting Started
NOTE.
Option 40 performs only modulation analysis in the Demod mode. For
spectrum analysis in the S/A mode, use Option 27 (3GPP-R5 analysis software).
The following sections detail the measurement functions included in Option 40
which are indicated in the two boxes in Figure 1-1. For details on the other
measurements, refer to the following user manuals:
For the 3GPP-R5 analysis in the S/A mode, refer to the RSA3408A Option 27
3GPP Release 5 Downlink (HSDPA) Analysis Software User Manual
(Tektronix part number 071-1681-XX).
For the CCDF (Complementary Cumulative Distribution Function) analysis in
the Time mode, refer to the RSA3408A User Manual (Tektronix part number
071-1617-XX).
NOTE.
If you are not familiar with the operation of the RSA3408A, refer to the
RSA3408A User Manual (Tektronix part number 071-1617-XX).
1-6
RSA3408A Option 40 User Manual
Operating Basics
Downlink Analysis
This section describes the basic operation of the 3GPP-R6 downlink analysis in the
Demod (Modulation Analysis) mode. You can access the measurement items by
pressing DEMOD →Standard... → 3GPP-R6-DL as shown in Figure 2-1.
DEMOD
Figure 2-1: Downlink analysis measurement menu in the Demod mode
MODE
S/A
TIME
Standard... 3GPP-R6-DL
Measure menu items
Code Domain Power
Power Codogram
Code Power versus Time Slot
Code Power versus Symbol
Symbol Constellation
Symbol EVM
Symbol Eye Diagram
Symbol Table
Modulation Accuracy
Mod Acc versus Time Slot
The measurement in the Demod mode is based on the digital modulation analysis
function. For the digital modulation analysis, refer to the RSA3408A User Manual.
Transmission Diversity.
This software performs analysis synchronizing with
CPICH of the STTD antenna 1 or 2 automatically, but does not apply decode
(symbol replacement and inversion).
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Downlink Analysis
Measurement Procedure
The following procedure shows you how to acquire data of multiple slots in
advance, measure continuous data, and obtain continuous code domain power:
NOTE.
RSA3408A User Manual.
1. Press the DEMOD key on the front panel.
2. Press the side key Standard... →3GPP-R6-DL.
3. Press the FREQUENCY/CHANNEL key on the front panel to set frequency.
4. Press the SPAN key on the front panel to set the span.
5. Press the AMPLITUDE key on the front panel to set the amplitude
NOTE.
center top of the screen. If this occurs, raise the reference level.
6. Press the TIMING key on the front panel and then the Acquisition Length
For details on setting frequency, span, and amplitude, refer to the
If you use the channel table, do these steps:
a. Press the Channel Table... side key and select W-CDMA-DL.
b. Press the Channel side key and select a channel by rotating the general
purpose knob.
The center frequency is set to the value corresponding to the channel.
appropriately.
If the input level is too high, A/D OVERFLOW displays in the red box at the
side key to set the time length to acquire one block.
2-4
Suppose that one block contains M frames; the acquisition length is calculated
with this equation:
(One block acquisition length) = M × (One frame acquisition length)
One frame acquisition length is determined by span and indicated on the
Spectrum Length side key.
The number of frames M required for measuring N slots must meet the
following condition:
M > K × (N + 1.2) + 1
where
K = 16.7 (for the span of 20 MHz and 15 MHz)
8.34 (for the span of 10 MHz)
4.17 (for the span of 5 MHz)
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Downlink Analysis
7. After acquiring measurement data, stop the data acquisition. If you are
acquiring data in the continuous mode, press the RUN/STOP key.
8. Press the MEASURE key on the front panel and select measurement items.
For example, press the Power Codogram side key to observe the code domain
power spectrogram.
9. Press the MEAS SETUP key on the front panel and set the measurement
parameters. Refer to page 2-7 for details of the Meas Setup menu.
10. Set the analysis range in the overview using the Timing menu.
Refer to the RSA3408A User Manual for the details.
11. Press the MEAS SETUP key on the front panel and then the Analyze side key
to start processing the frames in the analysis range. The results are displayed
in the main view.
Change the scale and format of the view as needed. Refer to page 2-10 for
setting views specific to the 3GPP-R6 downlink analysis.
12. If the level of input signals is low, the waveform may not be displayed
correctly. In this case, perform the following procedure:
NOTE.
The 3GPP-R6 downlink signal analysis may not be performed correctly if
the P-SCH, S-SCH, and PCPICH channels are too low to be detected. An error
occurs when one of these channel levels is lower than several tenths the sum of
other channel levels. In this case, set Scrambling Code Search to Off and specify
the scrambling code with the Scrambling Code side key.
a. Press the MEAS SETUP key on the front panel.
b. Press the Modulation Parameters... side key.
c. Press the Scrambling Code Search side key to select Off.
d. Press the Scrambling Code side key and enter the scrambling code.
The analyzer performs measurement with the value set here in place of
detecting the scrambling code.
e. Press the MEAS SETUP key on the front panel.
f. Press the Analyze side key to perform measurement for the frames in the
analysis range.
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Downlink Analysis
Figure 2-2 shows an example of the code domain power measurement.
Figure 2-2: Code domain power measurement example
Change the scale and format of the view as needed. Refer to page 2-10 for setting
views specific to the 3GPP-R6 downlink analysis.
2-6
RSA3408A Option 40 User Manual
Measurement Setup Menu
Press the MEAS SETUP key on the front panel to set the measurement parameters.
The Meas Setup menu for the 3GPP-R6 downlink modulation analysis contains the
following controls:
Downlink Analysis
Analyze
Modulation Parameters...
Performs analysis for time slots in the analysis range.
NOTE.
When you change the parameter setting(s) in the Meas Setup menu, press
the Analyze side key to perform the measurement for the modified setting(s).
Sets a measurement parameter to a non-standard value. The following controls are
provided:
Scrambling Code Search.
Selects whether to perform analysis by detecting a
scrambling code from input signals.
On. Detects a scrambling code automatically from the input signal to perform
the measurement.
Off. Default. Performs measurement using the scrambling code that has been
set manually with Scrambling Code described below.
NOTE.
The manual mode (Scrambling Code Search Off) should be used with the
appropriate scrambling code for reliable detection when either multiple code
channels are active or the sync channels have low power.
Also refer to Note on page 2-5.
Scrambling Code.
Scrambling Code Search. The analyzer performs measurement using the set
scrambling code. Range: 0 to 24575 (default: 0).
The 3GPP standard defines the scrambling code with the following formulas.
Input the n value to set the code.
Use Alternative Scramb. Code...
measurement results:
Not Used. Default. Uses the primary scrambling code only (without the left
Primary. Uses the primary scrambling with the left and the right alternative
RSA3408A Option 40 User Manual
Sets the scrambling code number when you select Off in
Primary scrambling code: n = 16 * i where i = 0 to 511
Secondary scrambling code: n = 16 * i + k where k = 1 to 15
Selects the de-spread method to display the
and the right alternative scrambling codes) to de-spread the input signal.
scrambling codes to de-spread the input signal.
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Downlink Analysis
Left Alternative. Uses the left alternative scrambling code to de-spread the
input signal.
Right Alternative. Uses the right alternative scrambling code to de-spread the
input signal.
Primary, Left Alternative and Right Alternative use the proprietary algorithm to
enhance the sensitivity by approximately 20 to 30 dB compared to Not Used.
Not Used does not use the alternative scrambling codes for faster measurement.
Use SCH Part.
Selects whether to include or exclude the SCH (Synchronization
Channel) portion when calculating the code domain power.
On. Calculates the code domain power by including the SCH portion.
Off. Default. Calculates the code domain power by excluding the SCH portion.
Composite.
Determines whether to perform the composite analysis (automatic
detection of symbol rate).
On. Default. Specifies that the composite analysis is performed.
Off. Specifies that the composite analysis is not performed.
NOTE.
You should usually specify that composite analysis is performed. If a normal
analysis does not result, select Off in this command and select a specific symbol
rate with Symbol Rate in the View: Define menu.
16QAM Detection.
Selects whether to detect the QPSK or 16QAM code channel
automatically.
On. Default. Automatically detects whether the code channel is QPSK or
16QAM.
Off. Assumes that all code channels are QPSK.
2-8
Measurement Filter...
None (no filter)
RootRaisedCosine (default)
Reference Filter...
None (no filter)
RaisedCosine (default)
Gaussian
Selects a filter for demodulating digitally-modulated signals:
Selects a filter for creating reference data:
RSA3408A Option 40 User Manual
Downlink Analysis
For the filters, refer to Process Flow of Digitally-Modulated Signal in the
RSA3408A User Manual.
E-AGCH Code
E-RGCH/E-HICH Code
E-RGCH Sequence Index
E-HICH Sequence Index
Filter Parameter.
Sets the a/BT value for Measurement Filter and Reference Filter
described above. Range: 0.0001 to 1 (default: 0.22).
EVM IQ Origin Offset.
Determines whether to include the I/Q origin offset in the
EVM (Error Vector Magnitude), Rho (waveform quality), and PCDE (Peak
Code-Domain Error) calculation.
Include. Default. Includes the I/Q origin offset in the calculation.
Exclude. Excludes the I/Q origin offset from the calculation.
Specifies the E-AGCH (E-DCH Absolute Grant Channel) code.
Range: Channel 0 to 127 (default: 0).
Specifies the E-RGCH (E-DCH Relative Grant Channel) or E-HICH (E-DCH
HARQ Acknowledgement Indicator Channel) code.
Range: Channel 0 to 127 (default: 0).
Specifies the E-RGCH sequence index number.
Range: 0 to 39 (default: 0).
Specifies the E-HICH sequence index number.
Range: 0 to 39 (default: 0).
Update Timeslot Table
Re-analyzes the existing time slot data to update the table display after you change
the subframe offset manually or abort the Analyze (top side key) operation.
Auto Carrier
Frequency Offset
Selects whether to detect the carrier automatically.
On. Default. Automatically detects the carrier for every frame.
Off. Sets the carrier frequency using Frequency Offset described below.
Sets the carrier frequency when Auto Carrier is selected to Off.
Input the carrier offset from the center frequency.
RSA3408A Option 40 User Manual
The error from the center frequency is shown on the Freq Error side key.
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Downlink Analysis
Scale and Format of View
The following main views are specific to the measurement items of the 3GPP-R6
downlink analysis in the Demod mode:
Code domain power
Power codogram
Code power versus Time slot
Code power versus Symbol
Symbol constellation
Symbol EVM
Symbol eye diagram
Symbol table
Modulation accuracy
Modulation accuracy versus Time slot
The scale and format of view are controlled by the View menu. This section
describes the View: Define menu and the View: Scale menu for each view.
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Downlink Analysis
View: Define Menu
The View: Define menu is common to all main views of the 3GPP-R6 downlink
measurement items. It contains the following controls:
Show Views.
Single. Displays only the view selected by the VIEW: SELECT key.
Multi. Default. Displays the overview, subview, and main view.
Overview Content...
Waveform (power versus time)
Spectrogram
Subview Content...
Spectrum
Code Domain Power
Power Codogram
CDP vs Time Slot (Code Domain Power versus Time Slot)
CDP vs Symbol (Code Domain Power versus Symbol)
Selects the view style:
Selects a view to display in the overview:
Selects a view to display in the subview:
EVM vs Time Slot
Symbol Constellation
Symbol EVM
Symbol Eye Diagram
Symbol Table
Modulation Accuracy
Time Slot.
Sets a time slot number to position the marker.
Range: 0 to [(the number of slots) −1] (default: 0).
Channelization Code.
Sets a channelization code number to position the marker.
Range: Channel 0 to 511 (default: 0).
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Downlink Analysis
Multi Slot.
Selects whether to display single slot or multiple slots in the main view.
This selection is effective only in the code domain power versus symbol view and
the symbol EVM view. In the other views, it has no effect.
Off. Displays a time-slot selected by the Time Slot side key.
On. Displays up to 15 time-slots in the main view.
Menu Off.
Turns off the side menu on screen to expand the waveform and
measurement result display. Press the MENU side key when you return to the
original display.
Show SCH Part.
Determines whether to display SCH (Synchronization Channel) at
the beginning of data.
Off. Hides the SCH part.
On. Shows the SCH part.
Symbol Rate...
960 k
480 k
Sets the symbol rate for displaying symbol constellation:
240 k
120 k
60 k
30 k
15 k
7.5 k
Composite
The default is Composite for multi-rate.
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Downlink Analysis
Time slot number in the radio frame
Time slot number in the analysis range
(0 is the last)
Column Items to Display...
Turns on or off the following items in the time-slot table.
Table 2-1: Column items
Column title Channel Description Value
SSCH - S-SCH Channel number
SCG - Scrambling Code Group Group number
SCN - Scrambling Code Number Code number
AGS E-AGCH Absolute Grant Scope 0 or 1
AGV E-AGCH Absolute Grant Value 0 to 31
RG E-RGCH Relative Grant UP, DOWN, or HOLD
ACK E-HICH ACK/NACK ACK, NACK0 or NACK1
1
NACK0: NACK for RLSs not containing the serving E-DCH cell. (RLS: Radio Link Set)
NACK1: NACK for RLS containing the serving E-DCH cell.
The time slot table is displayed in the main view, as shown in Figure 2-3, with
waveforms and measurement results.
Select the items to display by pressing
VIEW: DEFINE
→
Column Items to Display
1
Figure 2-3: Time slot table (at the lower left of the screen)
Scroll Timeslot Table.
Menu Off.
measurement result display. Press the MENU side key when you return to the
original display.
RSA3408A Option 40 User Manual
Scrolls the time slot table to the right and left.
Turns off the side menu on screen to expand the waveform and
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Downlink Analysis
Code Domain Power
Marker readout
When you select Code Domain Power in the Measure menu, the code domain
power is displayed for each short code, as shown in Figure 2-4.
Channelization code (Channel number at the symbol rate, Modulation type)
Vertical Stop
Vertical Scale
Code domain power
Time slot number in the radio frame
Horizontal Scale
Horizontal Start
Figure 2-4: Code domain power
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Downlink Analysis
View: Scale Menu
Use the following controls to scale the view:
Auto Scale.
Sets the start value and the scale of the vertical axis automatically
to fit the waveform to the screen.
Horizontal Scale.
Sets the scale of the horizontal axis.
Range: 16 to 512 channels.
Horizontal Start.
Sets the start channel number of the horizontal axis.
Range: 0 to [512 − (Horizontal Scale)].
Vertical Scale.
Sets the scale of the vertical axis.
Range: 50 µ to 50 dB.
Vertical Stop.
Sets the maximum value (top edge) of the vertical axis.
Range: −50 to Vertical Scale [dB].
Full Scale.
Y Axis.
Sets the scale of the vertical axis to the default full scale value.
Selects whether to represent the vertical axis (amplitude) with relative or
absolute values.
Relative. The vertical axis represents power relative to the total power of
all channels.
Absolute. The vertical axis represents absolute power of each channel.
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Downlink Analysis
Power Codogram
When you select Power Codogram in the Measure menu, the code domain power
is displayed in spectrogram, as shown in Figure 2-5.
Channelization code (Channel number at the symbol rate, Modulation type)
Ver t i ca l S i z e
Vertical Start
Marker readout
Color Stop
Color Scale
Code domain power
Slot number in the radio frame
Slot number based on the end of analysis range (0)
Relative time from completion of data acquisition
Horizontal Scale
Horizontal Start
Figure 2-5: Power codogram
2-16
RSA3408A Option 40 User Manual
Downlink Analysis
View: Scale Menu
Use the following controls to scale the view:
Auto Scale.
Sets the start value and the scale of the vertical axis automatically
to fit the waveform to the screen.
Horizontal Scale.
Sets the scale of the horizontal axis.
Range: 16 to 512 channels.
Horizontal Start.
Sets the start channel number of the horizontal axis.
Range: 0 to [512 − (Horizontal Scale)].
Vertical Size.
Sets the full scale of the vertical axis in frames.
Range: 58 to 59392 frames.
Vertical Start.
Color Scale.
5 dB
10 dB
20 dB
Sets the start frame number of the vertical axis.
Sets the range of the color axis:
50 dB
The spectrogram is displayed in 100 steps (100 colors) from the minimum value
(blue) to the maximum value (red) in the default state.
Color Stop.
Sets the maximum value (top edge) of the color axis.
Range: −50 to Color Scale [dB].
Full Scale.
Y Axis.
Sets Color Stop to 0 (zero) and Color Scale to 50 dB.
Selects whether to represent the Y (color) axis with relative or
absolute values.
Relative. The Y axis represents power relative to the total power of
all channels.
Absolute. The Y axis represents absolute power of each channel.
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2-17
Downlink Analysis
Code Power versus Time Slot
When you select Code Power versus Time Slot in the Measure menu, the
code domain power is displayed for each slot, as shown in Figure 2-6.
Slot number in the analysis range (Slot number in the radio frame)
Marker readout
Vertical Stop
Vertical Scale
Slot power
VIEW: SCALE
To t al Po w e r = O n
→
Horizontal Scale
Horizontal Start
Slot number in the analysis range (Slot number in the radio frame)
Channelization code
Modulation type
Channel number at the symbol rate
Slot power
Figure 2-6: Code power versus Time slot
VIEW: SCALE →
To t al Po w e r = O f f
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Downlink Analysis
View: Scale Menu
Use the following controls to scale the view:
Auto Scale.
Sets the start value and the scale of the vertical axis automatically
to fit the waveform to the screen.
Horizontal Scale.
Sets the scale of the horizontal axis (number of slots).
Range: N/8 to N slots (N: the number of slots in the analysis range.)
Horizontal Start.
Sets the start slot number of the horizontal axis.
Range: −(N − 1) to [1 − (Horizontal Scale)].
Vertical Scale.
Sets the scale of the vertical axis.
Range: 50 µ to 50 dB.
Vertical Stop.
Sets the maximum value (top edge) of the vertical axis.
Range: − 25 to [(Vertical Scale) + 25] dB.
Full Scale.
Y Axis.
Sets the scale of the vertical axis to the default full scale value.
Selects whether to represent the vertical (amplitude) axis with relative or
absolute values.
Relative. The vertical axis represents time-slot power relative to the power of
the first time-slot in the analysis range.
Absolute. The vertical axis represents absolute power of time slots.
Select Power.
Code. Shows the power of all channels or the specified channel depending on
Selects the channel to show the power for each time slot.
the setting of Total Power described below.
PSCH. Shows the power of the PSCH (Primary Synchronization Channel).
SSCH. Shows the power of the SSCH (Secondary Synchronization Channel).
Tot al Pow e r.
Determines whether to display the total power for each time slot when
the Select Power is set to Code.
On. Default. Displays the total power of all channels for each time slot.
Off. Displays power of the channel specified using Channelization Code in the
View: Define menu (refer to page 2-11).
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Downlink Analysis
Code Power versus Symbol
When you select Code Power versus Symbol in the Measure menu, the
code domain power is displayed for each symbol, as shown in Figure 2-7.
Marker readout
Vertical Stop
Vertical Scale
Symbol number
Horizontal Start
Channelization code
Symbol power (Channel number at the symbol rate, Modulation type)
Channel number at the symbol rate
Time slot number in the radio frame
Horizontal Scale
2-20
Figure 2-7: Code domain power versus Symbol
RSA3408A Option 40 User Manual
Downlink Analysis
View: Scale Menu
Use the following controls to scale the view:
Auto Scale.
Sets the start value and the scale of the vertical axis automatically
to fit the waveform to the screen.
Horizontal Scale.
Sets the scale of the horizontal axis (number of symbols).
Range: 0 to 640 symbols.
Horizontal Start.
Sets the start symbol number of the horizontal axis.
Range: 0 to [(initial value of Horizontal Scale) − (set value of Horizontal Scale)].
Vertical Scale.
Sets the scale of the vertical axis.
Range: 50 µ to 50 dB.
Vertical Stop.
Sets the maximum value (top edge) of the vertical axis.
Range: −50 to Vertical Scale [dB].
Full Scale.
Y Axis.
Sets the scale of the vertical axis to the default full-scale value.
Selects whether to represent the vertical (amplitude) axis with relative or
absolute values.
Relative. The vertical axis represents power relative to the total power of
all channels.
Absolute. The vertical axis represents absolute power of each channel.
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Downlink Analysis
Symbol Constellation
The symbol constellation is displayed when you select Symbol Constellation in the
Measure menu, as shown in Figure 2-8.
Origin offset measured value
Scale of amplitude
View: Scale Menu
Symbol number
Marker readout
Channel number at the symbol rate
Time slot number in the radio frame
Figure 2-8: Symbol constellation
Use the following controls to set the scale:
Measurement Content...
Selects vector or constellation display.
Channelization code
2-22
Vec tor. Selects vector display. A signal represented by phase and amplitude is
displayed in polar coordinate or IQ diagram. The red point indicates the
symbol position of 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. The cross marks indicate the
symbol positions of an ideal signal.
You can select degree or radian for the angular unit by pressing SYSTEM
→ Instrument Setup... → Angular Units...
RSA3408A Option 40 User Manual
Symbol EVM
Downlink Analysis
When you select Symbol EVM in the Measure menu, EVM (Error Vector
Magnitude) is displayed for each symbol, as shown in Figure 2-9.
Channelization codeSymbol number
EVM
Magnitude error
Phase error
Waveform quality (ρ)
Analysis length
(number of symbols)
Marker readout
Vertical Offset
Measurement Content = EVM
Channel number (Symbol rate)
Time slot number in the radio frame
Horizontal Scale
Horizontal Start
Measurement Content = Mag Error or Phase Error
Vertical Scale
Vertical Start
Vertical Scale
Figure 2-9: Symbol EVM
NOTE.
phase error are calculated and displayed with EVM IQ Origin Offset (refer to
page 2-9) set to Include even if you set it to Exclude.
RSA3408A Option 40 User Manual
Horizontal Scale
Horizontal Start
For the symbol EVM, the measurement results of EVM, magnitude and
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Downlink Analysis
View: Scale Menu
Use the following controls to scale the view:
Auto Scale.
Sets the start value and the scale of the vertical axis automatically
to fit the waveform to the screen.
Horizontal Scale.
Sets the scale of the horizontal axis (number of symbols).
Range: 0 to 640 symbols.
Horizontal Start.
Sets the start symbol number of the horizontal axis.
Range: 0 to [(initial value of Horizontal Scale) − (set value of Horizontal Scale)].
Vertical Scale.
Sets the scale of the vertical axis.
Refer to Table 2-2 for the setting range.
Vertical Start.
Sets the minimum value (bottom edge) of the vertical axis when the
measurement content is EVM. Refer to Table 2-2 for the setting range.
Vertical Offset.
Sets the center value ((maximum + minimum) / 2) of the vertical
axis when the measurement content is Mag Error or Phase Error.
Refer to Table 2-2 for the setting range.
Full Scale.
Sets the scale of vertical axis to the default full-scale value.
Measurement Content...
EVM. Represents the vertical axis with EVM.
Mag Error. Represents the vertical axis with magnitude error.
Phase Error. Represents the vertical axis with phase error.
Selects how to display the vertical axis (refer to Table 2-2).
Table 2-2: Vertical scale setting range, Symbol EVM
Measurement
Content... Vertical Scale Vertical Start Vertical Offset
EVM 100
Mag Error 200
Phase Error 450
µ
to 100%
µ
to 200% -
µ
to 450
°
−
100 to 100% -
-
−
200 to 200%
−
450 to 450
°
You can select degree or radian for the angular unit by pressing SYSTEM
→ Instrument Setup... → Angular Units...
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RSA3408A Option 40 User Manual
Symbol Eye Diagram
Marker readout
Downlink Analysis
The symbol eye diagram is displayed when you select Symbol Eye Diagram in the
Measure menu, as shown in Figure 2-10.
Channelization codeSymbol number
Amplitude (Channel number at the symbol rate, Modulation type)
Channel number at the symbol rate
Time slot number in the radio frame
Figure 2-10: Symbol eye diagram
View: Scale Menu
Use the following controls to scale the view.
Measurement Content...
I. Default. Displays I data on the vertical axis.
Q. Displays Q data on the vertical axis.
Tre ll is . Displays phase on the vertical axis.
Eye Length.
Enters the number of display symbols on the horizontal axis.
Selects the vertical axis of eye diagram.
Range: 1 to 16 (default: 2)
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2-25
Downlink Analysis
Symbol Table
The symbol table is displayed when you select Symbol Table in the Measure menu,
as shown in Figure 2-11.
Marker readout
View: Scale Menu
Symbol number
Channelization code
Symbol value (Channel number at the symbol rate, Modulation type)
Figure 2-11: Symbol table
Use the following controls to scale the view:
Radix.
Selects the radix for displaying the table:
Hex (packed). Displays data in the hexadecimal form every 4 bits.
Hex. Displays data in the hexadecimal form every modulation symbol.
2-26
Oct. Displays data in the octal form every modulation symbol.
Bin. Default. Displays data in the binary form.
Hex and Oct indicate values of binary data string in units of modulation symbol.
When a signal contains one or two-bit data in a symbol, you can select
Hex (packed) to represent multiple symbols as a hexadecimal digit every 4 bits.
For example, the BPSK modulation signal contains one-bit data in a symbol, so the
symbol table has the same values for Hex, Oct, and Bin. But Hex (packed)
represents every 4 symbols as a hexadecimal digit.
Rotate.
Sets the start position. Range: 0 to 3.
RSA3408A Option 40 User Manual
Modulation Accuracy
Measurement results
These values are displayed when
you select the constellation view.
Downlink Analysis
The constellation of all channels before the de-spread is displayed when you select
Modulation Accuracy in the Measure menu.
When you press the VIEW: SELECT key on the front panel to select the
constellation view, the measurement results for the time slot are displayed instead
of the overview, as shown in Figure 2-12.
The view settings are the same as for Symbol Constellation.
Refer to
Symbol Constellation
Time at the marker position
(relative to the end of data acquisition)
on page 2-22.
Measurement results
Marker readout
Time slot number in the radio frame
Constellation view
Figure 2-12: Modulation accuracy
The following table shows the measurement results readout.
Measurement results Description
PCDE PCDE [dB] @ channel: symbol rate (I/Q)
PCDE (Active) PCDE [dB] for active channels only @ channel: symbol rate (I/Q)
EVM (rms)
Mag Error (rms)
Phase Error (rms)
Rho Waveform quality (
Frequency Error Frequency error [Hz]
Origin Offset Origin offset (IQ feedthrough) [dB]
1
(Peak)
1
1
(Peak)
1
1
1
RMS value of EVM [%]
Peak value of EVM [%]
RMS value of magnitude error [%]
Peak value of magnitude error [%]
RMS value of phase error [degrees or radians]
(Peak) Peak value of phase error [degrees or radians]
ρ
)
Displayed on the upper-left corner of the screen when you select the constellation view.
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Downlink Analysis
Modulation Accuracy versus Time Slot
The Modulation accuracy versus Time slot measurement displays EVM,
magnitude error, phase error, PCDE (Peak Code Domain Error), or Frequency error
for each time slot in the main view. Figure 2-13 shows an example of EVM (rms).
Slot number in the analysis range
Marker readout
View: Scale Menu
Slot number in the radio frame
Measurement content
Figure 2-13: Modulation accuracy versus Time slot, EVM (rms)
Use the following controls to scale the view.
Auto Scale.
Sets the start value and the scale of the vertical axis automatically
to fit the waveform to the screen.
Horizontal Scale.
Sets the scale of the horizontal axis (number of slots).
Range: N/8 to N slots (N: the number of slots in the analysis range.)
2-28
Horizontal Start.
Sets the start slot number of the horizontal axis.
Range: −(N − 1) to [1 − (Horizontal Scale)].
Vertical Scale.
Sets the scale of the vertical axis.
Refer to Table 2-3 for the setting range.
Vertical Start.
Sets the minimum value (bottom edge) of the vertical axis when the
measurement content is EVM. Refer to Table 2-3 for the setting range.
Vertical Stop.
Sets the maximum value (top edge) of the vertical axis when the
measurement content is PCDE. Refer to Table 2-3 for the setting range.
Vertical Offset.
Sets the center value ((maximum + minimum) / 2) of the
vertical axis when the measurement content is Mag Error, Phase Error, or
Frequency Error. Refer to Table 2-3 for the setting range.
Full Scale.
Sets the scale of vertical axis to the default full-scale value.
RSA3408A Option 40 User Manual
Downlink Analysis
Measurement Content...
Selects the measurement content (refer to Table 2-3).
Table 2-3: Vertical scale setting range, Modulation accuracy versus Time slot
Measurement Content... Vertical Scale Vertical Start Vertical Stop Vertical Offset
µ
EVM (rms) 100
EVM (peak) 100
Mag Error (rms) 200
Mag Error (peak) 200
Phase Error (rms) 450
Phase Error (peak) 450µ to 450
PCDE (Peak Code Domain Error) 100µ to 100 dB Frequency Error 10 m to 10 kHz - -
to 100%
µ
to 100%
µ
to 200% - -
µ
to 200% - -
µ
to 450
°
°
−
100 to 100% - -
−
100 to 100% - -
−
200 to 200%
−
200 to 200%
--
--
−
100 to 100 dB -
−
450 to 450
−
450 to 450
−
10 k to 10 kHz
You can select degree or radian for the angular unit by pressing SYSTEM
→ Instrument Setup... → Angular Units...
°
°
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Downlink Analysis
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RSA3408A Option 40 User Manual
Uplink Analysis
This section describes the basic operation for the 3GPP-R6 uplink analysis in the
Demod (modulation analysis) mode. You can access the measurement item by
pressing DEMOD →Standard... → 3GPP-R6-UL as shown in Figure 2-14.
MODE
S/A
Measure menu items
DEMOD
TIME
Standard... 3GPP-R6-UL
Code Domain Power
Power Codogram
Code Power versus Time Slot
Code Power versus Symbol
Symbol Constellation
Symbol EVM
Symbol Eye Diagram
Symbol Table
Modulation Accuracy
Mod Acc versus Time Slot
Gain Ratio
Figure 2-14: Uplink analysis measurement menu in the Demod mode
The measurement in the Demod mode is based on the digital modulation analysis
function. For the digital modulation analysis, refer to the RSA3408A User Manual.
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Uplink Analysis
Measurement Procedure
The following procedure shows you how to acquire data from multiple slots in
advance, measure continuous data, and obtain continuous code domain power:
NOTE.
For details on setting frequency, span, and amplitude, refer to the
RSA3408A User Manual.
1. Press the DEMOD key on the front panel.
2. Press the side key Standard... →3GPP-R6-UL.
3. Press the FREQUENCY/CHANNEL key on the front panel to set frequency.
If you use the channel table, do these steps:
Press the Channel Table... side key and select W-CDMA-UL.
Press the Channel side key and select a channel by rotating the general
purpose knob.
The center frequency is set to the value corresponding to the channel.
4. Press the SPAN key on the front panel to set the span.
5. Press the AMPLITUDE key on the front panel to set the amplitude
appropriately.
NOTE.
If the input level is too high, A/D OVERFLOW displays in the red box at the
center top of the screen. If this occurs, raise the reference level.
6. Press the TIMING key on the front panel and then the Acquisition Length
side key to set the time length to acquire one block.
2-32
Suppose that one block contains M frames; the acquisition length is calculated
with this equation:
(One block acquisition length) = M × (One frame acquisition length)
One frame acquisition length is determined by span and indicated on the
Spectrum Length side key.
The number of frames M required for measuring N slots must meet the
following condition:
M > K × (N + 1.2) + 1
where
K =16.7 (for span 20 MHz and 15 MHz)
8.34 (for span 10 MHz)
4.17 (for span 5 MHz)
RSA3408A Option 40 User Manual
Uplink Analysis
7. After acquiring measurement data, stop the data acquisition. If you are
acquiring data in the continuous mode, press the RUN/STOP key.
8. Press the MEASURE key on the front panel to select measurement items.
For example, press the Power Codogram side key to observe the code domain
power spectrogram.
9. Press the MEAS SETUP key on the front panel and set the measurement
parameters. Refer to page 2-34 for details of the Meas Setup menu.
10. Set the analysis range in the overview using the Timing menu.
Refer to the RSA3408A User Manual for the details.
11. Press the MEAS SETUP key on the front panel and then the Analyze side key
to start processing the frames in the analysis range. The results are displayed
in the main view.
Change the scale and format of the view as needed. Refer to page 2-41 for
setting views specific to the 3GPP-R6 uplink analysis.
Figure 2-15 shows an example of the code domain power measurement.
Figure 2-15: Code domain power measurement example
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Uplink Analysis
Measurement Setup Menu
Press the MEAS SETUP key on the front panel to set the measurement parameters.
The Meas Setup menu for the 3GPP-R6 uplink modulation analysis contains the
following controls:
Analyze
Modulation Parameters...
Performs analysis for time slots in the analysis range.
NOTE.
When you change settings in the Meas Setup menu, press the Analyze
side key to perform the measurement for the modified setting(s).
Sets parameters to demodulate the input signal.
The following setting items are provided:
Measurement Mode.
DPDCH/DPCCH (default)
PRACH
PCPCH
Scrambling Code Type.
Selects the type of uplink signal:
Available for the DPDCH/DPCCH measurement mode.
Selects the scrambling code type:
Long (default)
Short
Scrambling Code.
Sets the scrambling code number.
Range: 0 to 16777215 (default: 0).
2-34
Configuration...
Available for the DPDCH/DPCCH measurement mode.
Selects the channel configuration (defined in 3GPP-R6).
Aut o. Default. Detects the configuration automatically.
1. Selects Configuration #1.
2. Selects Configuration #2.
3. Selects Configuration #3.
For details on the Configuration, refer to the 3GPP-R6 specifications.
RSA3408A Option 40 User Manual
Uplink Analysis
DPCCH Slot Format...
Available for the DPDCH/DPCCH measurement mode.
Selects the DPCCH slot format to decode TFCI.
Aut o. Default. Detects the Slot Format automatically.
0. Selects Slot Format #0 (including 0A and 0B).
1. Selects Slot Format #1.
2. Selects Slot Format #2 (including 2A and 2B).
3. Selects Slot Format #3.
NOTE.
When selecting Slot Format #1 or #3, the time-slot table does not show
TFCI. (Refer to page 2-45 for the time-slot table.)
For details on the Slot Format, refer to the 3GPP-R6 specifications.
HS-/E-DPCCH Tolerance.
Available for the DPDCH/DPCCH measurement mode.
Sets the number of symbols which are allowed to be different from the
3GPP-R6 specifications for decoding HS-DPCCH and E-DPCCH.
Range: 0 to 5 symbols (default: 0).
DTX Detection Threshold.
Available for the DPDCH/DPCCH measurement mode.
Sets the threshold level to detect the DTX state.
Range: −20 to 0 dB relative to the DPCCH power (default: −11.8 dB).
Threshold.
Sets the threshold level to detect a burst.
Range: −100 to 10 dB relative to the reference level (default: −30 dB).
Measurement Filter...
None (no filter)
RootRaisedCosine (default
Reference Filter...
None (no filter)
RaisedCosine (default
Gaussian
Selects a filter for demodulating digitally-modulated signals:
Selects a filter for creating reference data:
For the filters, refer to Process Flow of Digitally-Modulated Signal in the
RSA3408A User Manual.
Filter Parameter.
Sets an α/BT value for Measurement Filter and Reference Filter
described above. Range: 0.0001 to 1 (default: 0.22)
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Uplink Analysis
Subframe Offset Select
EVM IQ Origin Offset.
Determines whether or not to include the I/Q origin offset
in the EVM (Error Vector Magnitude), Rho (waveform quality), and PCDE (Peak
Code Domain Error) calculation.
Include. Default. Includes the I/Q origin offset in the calculation.
Exclude. Excludes the I/Q origin offset from the calculation.
EVM Transient Periods of 25 us.
Determines whether or not to include the transient
periods (both 25 µs ends of the time slot) from the EVM and PCDE calculation.
Include. Calculates EVM and PCDE using all chips of the slot.
Exclude. Default. Excludes both 25 µs ends of the slot from the calculation.
Selects how to specify the subframe offset.
Aut o. Default. The symbol table is displayed for any offset.
STO. Sets the Subframe to Time-Slot Offset (STO) using the
Subframe to TS Offset side key.
DTO. Sets the Downlink Time Offset (DTO) using the
Downlink Time Offset side key.
Subframe to TS Offset
Specifies the subframe to time-slot offset when you select STO with the
Subframe Offset Select side key. Range: 0 to 9 symbols (default: 0).
The subframe to time-slot offset is the time offset between the start of the DPDCH
time slot and the start of the HS-DPCCH subframe (see Figure 2-16).
Downlink Unit: Symbols
HS-SCCH
HS-PDSCH
DPCH
30 30
20
Downlink time offset
30
(DTO)
Uplink
HS-DPCCH
DPDCH
4
30 30
10 10 10 10 10 10 10 10 10 10
Subframe to time-slot offset
(STO)
75
10 10 10 10 10 10 10 10 10 10
Displayed on the symbol table
30
• • •
30
Figure 2-16: Subframe offset
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Uplink Analysis
Downlink Time Offset
Update Timeslot Table
Auto Carrier
Frequency Offset
Specifies the downlink time offset when you select DTO with the
Subframe Offset Select side key. Range: 0 to 149 symbols (default: 1).
The downlink time offset is the time offset between the start of HS-SCCH and the
start of DPCH (see Figure 2-16).
Reanalyzes the existing time slot data to update the table display after you change
the subframe offset manually or abort the Analyze (top side key) operation.
Selects whether to detect the carrier automatically.
On. Default. Automatically detects the carrier for every frame.
The error from the center frequency is shown on the Freq Error side key.
Off. Sets the carrier frequency using Frequency Offset.
Sets the frequency offset when Auto Carrier is set to Off.
Input the carrier offset from the center frequency.
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Uplink Analysis
Display Method for HS-DPCCH
The measurement results for each channel are normally displayed in the view for
each time slot. But HS-DPCCH has the different display methods for the settings
of Subframe Offset Select in the Meas Setup menu. This section describes how to
display HS-DPCCH in each view.
Code Domain Power, Power Codogram, and Code Power versus Time Slot
When Subframe Offset Select is set to AUTO
Each time slot is displayed without offset as the other channels (see the
upper part of Figure 2-17).
When Subframe Offset Select is set to STO (Subframe to Time slot Offset)
Each time slot is displayed with offset specified by Subframe to TS Offset in
the Meas Setup menu. Also in the total power calculation for the relative value
display, only HS-DPCCH is offset in the same way. But the last time slot is
displayed without offset (see the lower part of Figure 2-17).
When Subframe Offset Select is set to DTO (Downlink Time Offset)
Each time slot is displayed in the same manner as when Subframe Offset Select
is set to STO. But the number of offset symbols is determined by this formula:
[151 − (Downlink Time Offset)] mod 10 (see the lower part of Figure 2-17).
Subframe Offset Select = AUTO
DPDCH 10
HS-DPCCH
Display sequence
Subframe Offset Select = STO or DTO
DPDCH 10
HS-DPCCH
Display sequence
1 234
10 10 10
10 10 10
10 10 10
10 10 10
1 23
NOTE. “10” in the box represents the number of symbols in a time slot.
Figure 2-17: HS-DPCCH display method
<10
<10
4
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Uplink Analysis
Code Power versus Symbol, Symbol Constellation, Symbol EVM, and
Symbol Eye Diagram
When Subframe Offset Select is set to AUTO
10 symbols are displayed for each time slot without offset as the other channels
(see the upper part of Figure 2-17 on page 2-38).
When Subframe Offset Select is set to STO (Subframe to Time slot Offset)
30 symbols are displayed for each time slot with offset specified by Subframe
to TS Offset in the Meas Setup menu. Also in the total power calculation for
the relative value display in the Code power versus Symbol view, only
HS-DPCCH is offset in the same way (see the upper part of Figure 2-18). But
when there are not enough symbols in the last part of the analysis range, 30,
20, and 10 symbols are displayed without offset as shown in the upper part of
Figure 2-18, the display sequence 8, 9, and 10, respectively.
When Subframe Offset Select is set to DTO (Downlink Time Offset)
If the specified time slot is the first one in the subframe, symbols are displayed
in the same manner as when Subframe Offset Select is set to STO. Otherwise
symbols are displayed in the same manner as when Subframe Offset Select is
set to AUTO (see the lower part of Figure 2-17).
Subframe Offset Select = STO
DPDCH 10
HS-DPCCH
Display sequence
Subframe Offset Select = DTO
DPDCH 10
HS-DPCCH
Display sequence
10 10 10
10
10
10 10 10 10 10 10 10 10 <10
1
2
10 10 10
10 10 10 10 10 10 10 10 <10
1
2 3 5 6 8 910
10 10 10 10 10 10
4 7
5
3
10 10 10 10 10 10
4 7
NOTE. “10” in the box represents the number of symbols in a time slot.
6
8
9
10
Figure 2-18: HS-DPCCH display method
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2-39
Uplink Analysis
Symbol Table
Symbols of four time slots (40 symbols) are displayed without offset (see the
upper part of Figure 2-19). But for the last three time slots, 30, 20, and 10 symbols
are displayed without offset as shown in the Figure 2-19, the display sequence 4, 5,
and 6, respectively.
DPDCH 10
HS-DPCCH
Display sequence
10 10 10
10
10 10 10 10 <10
1
2
NOTE. “10” in the box represents the number of symbols in a time slot.
Figure 2-19: HS-DPCCH display method (symbol table)
10 10
5
6
3
4
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RSA3408A Option 40 User Manual
Scale and Format of View
The following main views are specific for the measurement items of the 3GPP-R6
uplink analysis in Demod mode:
Code domain power
Power codogram
Code power versus Time slot
Code power versus Symbol
Symbol constellation
Symbol EVM
Symbol eye diagram
Symbol table
Modulation accuracy
Modulation accuracy versus Time slot
Uplink Analysis
Gain ratio
The scale and format of view are controlled by the View menu. This section
describes the View: Define menu and the View: Scale menu for each view.
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Uplink Analysis
View: Define Menu
The View: Define menu is common to all main views of the 3GPP-R6 uplink
measurement items. It contains the following controls:
Show Views.
Single. Displays only the view selected by the VIEW: SELECT key.
Multi. Default. Displays the overview, subview, and main view.
Overview Content...
Waveform (power versus time)
Spectrogram
Subview Content...
Spectrum
Code Domain Power
Power Codogram
CDP vs Time Slot (Code Domain Power versus Time Slot)
CDP vs Symbol (Code Domain Power versus Symbol)
Selects the view style:
Selects a view to display in the overview:
Selects a view to display in the subview:
Symbol Constellation
Symbol EVM
Symbol Eye Diagram
Symbol Table
Modulation Accuracy
Time Slot.
Sets a time-slot number to position the marker.
Range: −[(the number of time slots in the analysis range) − 1] to 0.
Zero (0) represents the latest slot.
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Uplink Analysis
Symbol Rate...
1920 k
960 k
480 k
240 k
120 k
60 k
30 k
15 k
Composite
Sets the symbol rate to display symbol constellation:
The default is Composite for multi-rate.
Channel Number.
Selects a channel to position the marker when the
View Format is set to Channel. Range: Channel 0 to 12.
Channelization Code.
Selects a channelization code to position the marker when the
View Format is set to I/Q Split. Range: Channel 0 to 255.
I/Q Branch.
I. Displays the measurement result for the I branch.
Q. Displays the measurement result for the Q branch.
I/Q. Displays the measurement result for both I and Q branches.
Selects the I/Q branch when the View Format is set to I/Q Split.
When the View Format is set to Channel, the I/Q Branch is set to Auto, indicating
that the I/Q branch is automatically determined.
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Uplink Analysis
View Format.
Channel. Displays the measurement result for the channels of 0 to 12.
Selects the view format (see Figure 2-20).
Table 2-4 shows the channel number and the corresponding channel.
Table 2-4: Channel number
Channel number Channel name
0DPCCH
1 to 6 DPDCH
7 HS-DPCCH
8E-DPCCH
9 to 12 E-DPDCH
Use the Channel Number side key to select the channel to position the marker.
I/Q Split. Displays the measurement result for the I and/or Q branch along with
the channelization codes of 0 to 255. Select the branch using the I/Q Branch
side key. Use the Channelization Code side key to select the code to position
the marker.
Figure 2-20 shows an example of the View Format setting in the code domain
power measurement.
Channel display I/Q split display
Channel: 0 to 12 Channelization code: 0 to 255
Figure 2-20: View Format setting (code domain power)
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RSA3408A Option 40 User Manual
Uplink Analysis
Column Items to Display...
in the time-slot table.
Table 2-5: Time-slot table contents selection
The time slot table is displayed in the main view, as shown in Figure 2-21, with
waveforms and measurement results.
Time slot number in the radio frame
Time slot number in the analysis range
(0 is the last)
Turns on or off the column items, as listed in Table 2-5,
Column title Channel
SIG - Signature number in the preamble.
PRE - Preamble.
TPC DPCCH TPC (Transmit Power Control) value.
TFCI DPCCH TFCI (Transport Format Combination Indicator) value.
ACK HS-DPCCH ACK, NACK, PRE, POST, and DTX.
CQI HS-DPCCH CQI (Channel Quality Indicator) value.
Offset HS-DPCCH Subframe to Time-slot Offset (STO). Refer to page 2-36.
RSN E-DPCCH RSN (Retransmission Sequence Number).
E-TFCI E-DPCCH E-TFCI (Enhanced TFCI) value.
Happy E-DPCCH Happy bit value.
Select the items to display by pressing
VIEW: DEFINE → Column Items to Display
(refer to Table 2-5)
Value
Figure 2-21: Time slot table (at the lower left of the screen)
Scroll Timeslot Table.
Menu Off.
measurement result display. Press the MENU side key when you return to the
original display.
RSA3408A Option 40 User Manual
Scrolls the time slot table to the right and left.
Turns off the side menu on screen to expand the waveform and
2-45
Uplink Analysis
Code Domain Power
Marker readout
When you select Code Domain Power in the Measure menu, the code domain
power is displayed for each channel, as shown in Figure 2-22.
Channel number (Channel number at the symbol rate, Channel name)
Vertical Stop
Ver t ica l S c a le
Code domain power (Slot number in the radio frame)
Horizontal Scale
Horizontal Start
Figure 2-22: Code domain power
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Uplink Analysis
View: Scale Menu
Use the following controls to scale the view:
Auto Scale.
Sets the start value and the scale of the vertical axis automatically to fit
the waveform to the screen.
Horizontal Scale.
Sets the scale of the horizontal axis.
Range: 1.625 to 13 channels (View Format: Channel)
16 to 256 channels (View Format: I/Q Split)
Refer to page 2-44 for View Format.
Horizontal Start.
Sets the start channel number of the horizontal axis.
Range: 0 to [(initial value of Horizontal Scale) − (set value of Horizontal Scale)].
Vertical Scale.
Sets the scale of the vertical axis.
Range: 50 µ to 50 dB.
Vertical Stop.
Sets the maximum value (top edge) of the vertical axis.
Range: −50 to Vertical Scale [dB].
Full Scale.
Y Axis.
Sets the scale of the vertical axis to the default full-scale value.
Selects whether to represent the vertical axis (amplitude) with relative or
absolute values.
Relative. The vertical axis represents relative power to the reference power
selected in the Power Reference menu item.
Absolute. The vertical axis represents absolute power of each channel.
Power Reference...
Tot al P o w e r. Selects the total power of all channels as the reference.
DPCCH Power. Selects the DPCCH power as the reference.
Number of Graphs.
Selects the power reference when Y Axis is set to Relative.
Selects the number of graphs in the main view (1 or 2). The
number of graphs and display format depend on the settings of View Format and
IQ Branch as shown in the table below. For View Format and IQ Branch, refer to
pages 2-43 and 2-44.
View Format I/Q Branch Number of Graphs Display format
Channel - 1 (fixed) Channel display
I/Q Split I 1 I branch display
2 I and Q branches display
Q 1 Q branch display
2 I and Q branches display
I/Q 2 (fixed) I and Q branches display
RSA3408A Option 40 User Manual
2-47
Uplink Analysis
Power Codogram
When you select Power Codogram in the Measure menu, the code domain power
is displayed in spectrogram, as shown in Figure 2-23.
Channel number (Channel number at the symbol rate, Channel name)
Ver tica l S i ze
Vertical Start
Marker readout
Color Stop
Code domain power (Slot number in the radio frame)
Slot number in the analysis range
Relative time from completion of data acquisition
Color Scale
Horizontal Scale
Horizontal Start
Figure 2-23: Power codogram
2-48
View: Scale Menu
Use the following controls to scale the view:
Auto Scale.
Sets the start value and the scale of the vertical axis automatically to fit
the waveform to the screen.
Horizontal Scale.
Sets the scale of the horizontal axis.
Range: 1.625 to 13 channels (View Format: Channel)
16 to 256 channels (View Format: I/Q Split)
Refer to page 2-44 for View Format.
Horizontal Start.
Sets the start channel number of the horizontal axis.
Range: 0 to [(initial value of Horizontal Scale) − (set value of Horizontal Scale)].
Vertical Size.
Sets the full scale of the vertical axis in frames.
Range: 58 to 59392.
Vertical Start.
Sets the start frame number of the vertical axis.
RSA3408A Option 40 User Manual
Uplink Analysis
Color Scale.
5 dB
10 dB
20 dB
50 dB
Sets the range of the color axis:
The spectrogram is displayed in 100 steps (100 colors) from the minimum value
(blue) to the maximum value (red) in the default state.
Color Stop.
Sets the maximum value (top edge) of the color axis.
Range: −50 to 50 dB.
Full Scale.
Y Axis.
Sets Color Stop to 0 (zero) and Color Scale to 50 dB.
Selects whether to represent the Y (color) axis with relative or
absolute values.
Relative. The Y axis represents relative power to the reference power selected
in the Power Reference menu item.
Absolute. The Y axis represents absolute power of each channel.
Power Reference...
Tot al P o w e r. Selects the total power of all channels as the reference.
DPCCH Power. Selects the DPCCH power as the reference.
Number of Graphs.
Selects the power reference when Y Axis is set to Relative.
Selects the number of graphs in the main view (1 or 2). The
number of graphs and display format depend on the settings of View Format and
IQ Branch as shown in the following table. For View Format and IQ Branch, refer
to pages 2-43 and 2-44.
View Format I/Q Branch Number of Graphs Display format
Channel - 1 (fixed) Channel display
I/Q Split I 1 I branch display
2 I and Q branches display
Q 1 Q branch display
2 I and Q branches display
I/Q 2 (fixed) I and Q branches display
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2-49
Uplink Analysis
Code Power versus Time Slot
When you select Code Power versus Time Slot in the Measure menu, the
code domain power is displayed for each slot, as shown in Figure 2-24.
Slot number
Marker readout
Vertical Stop
Vertical Scale
Slot power (Slot number in the radio frame)
VIEW: SCALE
To t a l P o w e r = O n
→
Horizontal Scale
Horizontal Start
Slot number in the analysis range
Channel number (Channel number at the symbol rate, Channel name)
Slot power (Slot number in the radio frame)
Figure 2-24: Code power versus Time slot
VIEW: SCALE →
To t a l P o w e r = O f f
Channel number
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Uplink Analysis
View: Scale Menu
Use the following controls to scale the view:
Auto Scale.
Sets the start value and the scale of the vertical axis automatically to fit
the waveform to the screen.
Horizontal Scale.
Sets the scale of the horizontal axis (number of slots).
Range: N/8 to N slots (N: the number of slots in the analysis range.)
Horizontal Start.
Sets the start slot number of the horizontal axis.
Range: −(N − 1) to [1 − (Horizontal Scale)].
Vertical Scale.
Sets the scale of the vertical axis.
Range: 50 µ to 50 dB.
Vertical Stop.
Sets the maximum value (top edge) of the vertical axis.
Range: − 25 to [(Vertical Scale) + 25] dB.
Full Scale.
Y Axis.
Sets the scale of the vertical axis to the default full scale value.
Selects whether to represent the vertical (amplitude) axis with relative or
absolute values.
Relative. The vertical axis represents time slot power relative to the power of
the first time slot in the analysis range.
Absolute. The vertical axis represents absolute power of time slots.
Tot al Pow e r.
On. Default. Displays the total power of all channels for each time slot.
Off. Displays power of the channel specified with Channel Number in the
Determines whether to display the total power for each time slot.
View: Define menu (refer to page 2-42).
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Uplink Analysis
Code Power versus Symbol
When you select Code Power versus Symbol in the Measure menu, the
code domain power is displayed for each symbol, as shown in Figure 2-25.
Marker readout
Vertical Stop
Ver tica l S c ale
Symbol number
Horizontal Start
Channel number (Channel number at the symbol rate, Channel name)
Channel number
Slot number in the radio frame
Symbol power (Slot number in the radio frame)
Horizontal Scale
2-52
Figure 2-25: Code domain power versus Symbol
RSA3408A Option 40 User Manual
Uplink Analysis
View: Scale Menu
Use the following controls to scale the view:
Auto Scale.
Sets the start value and the scale of the vertical axis automatically to fit
the waveform to the screen.
Horizontal Scale.
Sets the scale of the horizontal axis (number of symbols).
Range: 0 to 1280 symbols.
Horizontal Start.
Sets the start symbol number of the horizontal axis.
Range: 0 to [(initial value of Horizontal Scale) − (set value of Horizontal Scale)].
Vertical Scale.
Sets the scale of the vertical axis.
Range: 50 µ to 50 dB.
Vertical Stop.
Sets the maximum value (top edge) of the vertical axis.
Range: −50 to Vertical Scale [dB].
Full Scale.
Y Axis.
Sets the scale of the vertical axis to the default full-scale value.
Selects whether to represent the vertical (amplitude) axis with relative or
absolute values.
Relative. The vertical axis represents relative power to the reference power
selected in the Power Reference menu item.
Absolute. The vertical axis represents absolute power of each channel.
Power Reference...
Tot al P o w e r. Selects the total power of all channels as the reference.
DPCCH Power. Selects the DPCCH power as the reference.
Selects the power reference when Y Axis is set to Relative.
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Uplink Analysis
Symbol Constellation
The symbol constellation is displayed when you select Symbol Constellation in the
Measure menu, as shown in Figure 2-26.
Channel number (Channel number at the symbol rate, Channel name)
Symbol number
Origin offset measurement value
Scale of amplitude
View: Scale Menu
Marker readout
Channel number
Slot number
in the radio frame
Figure 2-26: Symbol constellation
Use the following controls to set the scale:
Measurement Content...
Vec tor. Selects vector display. A signal represented by phase and amplitude is
Selects vector or constellation display.
displayed in polar coordinate or IQ diagram. The red point indicates the
symbol position of the measured signal, and the yellow trace indicates the
locus of the signal between symbols.
2-54
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. The cross marks indicate the
symbol positions of an ideal signal.
IQ Composite.
Selects whether or not to display IQ composite. This setting is
effective when you select VIEW: DEFINE → View Format → Channel.
Specify the channel using Channel Number. (Refer to page 2-43 and 2-44.)
On. Displays IQ composite of the specified channel and other channel(s)
transmitted simultaneously.
Off. Default. Displays the I or Q component only for the specified channel.
You can select degree or radian for the angular unit by pressing SYSTEM
→ Instrument Setup... → Angular Units...
RSA3408A Option 40 User Manual
Symbol EVM
Magnitude error
Phase error
Waveform quality (ρ)
Analysis length
(number of symbols)
EVM
Uplink Analysis
When you select Symbol EVM in the Measure menu, EVM (Error Vector
Magnitude) is displayed for each symbol, as shown in Figure 2-27.
Channel number (Channel number at the symbol rate, Channel name)
Symbol number
Marker readout
Channel number
Time slot number
in the radio frame
Horizontal Scale
Horizontal Start
Measurement Content = EVM
Vertical Scale
Vertical Start
You can select degree or radian for the angular unit by pressing
SYSTEM
→
Instrument Setup... → Angular Units...
Figure 2-27: Symbol EVM
NOTE.
For the symbol EVM, the measurement results of EVM, magnitude and
phase error are calculated and displayed with EVM IQ Origin Offset (refer to
page 2-36) set to Include even if you set it to Exclude.
When the Measurement Content (refer to page 2-56) is Phase Error, the
measurement results are not displayed if you set as follows:
View Format to IQ Split and I/Q Branch to I or Q
Vertical Offset
Measurement Content = Mag Error or Phase Error
Vertical Scale
Horizontal Scale
Horizontal Start
View Format to Channel and I/Q Composite to Off
Fo r View Format and IQ Split, refer to pages 2-43 and 2-44.
Fo r I/Q Composite, refer to page 2-56.
RSA3408A Option 40 User Manual
2-55
Uplink Analysis
View: Scale Menu
Use the following controls to scale the view:
Auto Scale.
Sets the start value and the scale of the vertical axis automatically to
display the entire waveform.
Horizontal Scale.
Sets the scale of the horizontal axis (number of symbols).
Range: 0 to 1280 symbols.
Horizontal Start.
Sets the start symbol number of the horizontal axis.
Range: 0 to [(initial value of Horizontal Scale) − (set value of Horizontal Scale)].
Vertical Scale.
Vertical Start.
Sets the scale of the vertical axis.
Sets the minimum value (bottom edge) of the vertical axis when the
measurement content is EVM. Refer to Table 2-6 for the setting range.
Vertical Offset.
Sets the center value ((maximum + minimum) / 2) of the
vertical axis when the measurement content is Mag Error or Phase Error.
Refer to Table 2-6 for the setting range.
Full Scale.
Measurement Content...
Sets the scale of vertical axis to the default full-scale value.
Selects the parameter for the vertical axis.
(Refer toTable 2-6.)
EVM. Represents the vertical axis with EVM (Error Vector Magnitude).
Mag Error. Represents the vertical axis with magnitude error.
Phase Error. Represents the vertical axis with phase error.
Table 2-6: Vertical scale setting range, Symbol EVM
Measurement
Content... Vertical Scale Vertical Start Vertical Offset
EVM 100
Mag Error 200
Phase Error 450
IQ Composite.
Selects whether or not to display IQ composite. This setting is
µ
to 100%
µ
to 200% -
µ
to 450
°
−
100 to 100% -
-
−
200 to 200%
−
450 to 450
°
effective when you select VIEW: DEFINE → View Format → Channel.
Specify the channel using Channel Number. (Refer to page 2-43 and 2-44.)
On. Displays IQ composite of the specified channel and other channel(s)
transmitted simultaneously.
Off. Default. Displays the I or Q component only for the specified channel.
2-56
RSA3408A Option 40 User Manual
Symbol Eye Diagram
Uplink Analysis
The symbol eye diagram is displayed when you select Symbol Eye Diagram in the
Measure menu, as shown in Figure 2-28.
Marker readout
View: Scale Menu
Symbol number
Channel number (Channel number at the symbol rate, Channel name)
Figure 2-28: Symbol eye diagram
Use the following controls to scale the view.
Measurement Content...
NOTE.
I. Displays I data on the vertical axis.
The measurement content is automatically selected in the uplink analysis.
Selects the vertical axis of eye diagram.
Channel number
Slot number in the radio frame
Q. Displays Q data on the vertical axis.
Tre ll is . Displays phase on the vertical axis.
The Measurement Content depends on the settings of View Format and I/Q Branch
as shown in the table below. For View Format and IQ Branch, refer to pages 2-43
and 2-44
View Format I/Q Branch Measurement Content
Channel - Determined automatically for each channel.
I/Q Split I I (fixed)
Eye Length.
Range: 1 to 16 (default: 2)
RSA3408A Option 40 User Manual
Q Q (fixed)
I/Q Trellis (fixed)
Enters the number of display symbols on the horizontal axis.
2-57
Uplink Analysis
Symbol Table
The symbol table is displayed when you select Symbol Table in the Measure menu,
as shown in Figure 2-29.
Marker readout
Symbol number
Channel number (Channel number at the symbol rate, Channel name)
Symbol value (Sot number in the radio frame)
Figure 2-29: Symbol table
When the TS index is changed to a time slot that does not contain the beginning of
an HS-DPCCH subframe, the symbol table text is all white. When an ACK or
NACK time slot is selected, the symbol table text color changes to show the
position of the ACK/NACK symbols (yellow) and the CQI symbols (blue).
NOTE.
For the uplink symbol table, the measurement results are not displayed
when you set View Format to IQ Split and I/Q Branch to I/Q. (For View Format and
IQ Split, refer to pages 2-43 and 2-44.)
2-58
View: Scale Menu
Use the following controls to scale the view:
Radix.
Selects the radix for displaying the table:
Hex (packed). Displays data in the hexadecimal form every 4 bits.
Hex. Displays data in the hexadecimal form every modulation symbol.
Oct. Displays data in the octal form every modulation symbol.
Bin. Default. Displays data in the binary form.
Hex and Oct indicate values of binary data string in units of modulation symbol.
When a signal contains one or two-bit data in a symbol, you can select
Hex (packed) to represent multiple symbols as a hexadecimal digit every 4 bits.
For example, the BPSK modulation signal contains one-bit data in a symbol, so the
symbol table has the same values for Hex, Oct, and Bin. But Hex (packed)
represents every 4 symbols as a hexadecimal digit.
Rotate.
Sets the start position. Range: 0 to 3.
RSA3408A Option 40 User Manual
Modulation Accuracy
Uplink Analysis
When you select Modulation Accuracy in the Measure menu, the constellation of
all channels before the de-spread is displayed with the measurement results of
PCDE (Peak Code Domain Error), EVM, frequency error and others.
When you press the VIEW: SELECT key on the front panel to select the
constellation view, the measurement results for the time slot are displayed instead
of the overview, as shown in Figure 2-30.
Measurement results readout
Time at the marker position
(relative to the end of data acquisition)
Marker readout
Time slot number in the radio frame
Constellation view
Figure 2-30: Modulation accuracy
The following table shows the measurement results readout.
Measurement results Description
PCDE PCDE [dB] @ channel: symbol rate (I/Q)
PCDE (Active) PCDE [dB] for active channels only @ channel: symbol rate (I/Q)
EVM (rms) RMS value of EVM [%]
(Peak) Peak value of EVM [%]
Mag Error (rms) RMS value of magnitude error [%]
(Peak) Peak value of magnitude error [%]
Phase Error (rms) RMS value of phase error [degrees or radians]
(Peak) Peak value of phase error [degrees or radians]
Rho Waveform quality (
Frequency Error Frequency error [Hz]
Origin Offset Origin offset (IQ feedthrough) [dB]
Phase Discontinuity Phase difference between the beginning of the currently selected
time slot and the end of the previous time slot.
ρ
)
RSA3408A Option 40 User Manual
2-59
Uplink Analysis
View: Scale Menu
Use the following controls to set the scale:
Measurement Content...
Vec tor. Selects vector display. A signal represented with phase and amplitude
Selects vector or constellation display.
is displayed in polar coordinate or IQ diagram. The red point indicates the
symbol position of 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 measured signal are indicated in red, and
the locus between symbols is not shown. The cross marks indicate the symbol
positions of an ideal signal.
You can select degree or radian for the angular unit by pressing SYSTEM
→ Instrument Setup... → Angular Units...
2-60
RSA3408A Option 40 User Manual
Modulation Accuracy versus Time Slot
The Modulation accuracy versus Time slot measurement displays EVM,
magnitude error, phase error, PCDE (Peak Code Domain Error), or Frequency error
for each time slot in the main view. Figure 2-31 shows an example of EVM (rms).
Uplink Analysis
Slot number in the analysis range
Marker readout
View: Scale Menu
Slot number in the radio frame
Figure 2-31: Modulation accuracy versus Time slot, EVM (rms)
Use the following controls to scale the view.
Auto Scale.
to fit the waveform to the screen.
Horizontal Scale.
Range: 18.5 to 148 slots.
Sets the start value and the scale of the vertical axis automatically
Sets the range of the horizontal axis (number of time slots).
Horizontal Start.
Range: −147 to [1 −(Horizontal Scale)].
Vertical Scale.
Refer to Table 2-7 for the setting range.
Vertical Start.
measurement content is EVM. Refer to Table 2-7 for the setting range.
Vertical Stop.
measurement content is PCDE. Refer to Table 2-7 for the setting range.
Vertical Offset.
vertical axis when the measurement content is Mag Error or Phase Error.
Refer to Table 2-7 for the setting range.
Full Scale.
RSA3408A Option 40 User Manual
Sets the start symbol number of the horizontal axis.
Sets the scale of the vertical axis.
Sets the minimum value (bottom edge) of the vertical axis when the
Sets the maximum value (top edge) of the vertical axis when the
Sets the center value ((maximum + minimum) / 2) of the
Sets the scale of vertical axis to the default full-scale value.
2-61
Uplink Analysis
Measurement Content...
Selects the measurement content (refer to Table 2-7).
Table 2-7: Vertical scale setting range, Modulation accuracy versus Time slot
Measurement Content... Vertical Scale Vertical Start Vertical Stop Vertical Offset
µ
EVM (rms) 100
EVM (peak) 100
Mag Error (rms) 200
Mag Error (peak) 200
Phase Error (rms) 450
Phase Error (peak) 450µ to 450
PCDE (Peak Code Domain Error) 100µ to 100 dB Frequency Error 10 m to 10 kHz - -
to 100%
µ
to 100%
µ
to 200% - -
µ
to 200% - -
µ
to 450
°
°
−
100 to 100% - -
−
100 to 100% - -
−
200 to 200%
−
200 to 200%
--
--
−
100 to 100 dB -
−
450 to 450
−
450 to 450
−
10 k to 10 kHz
You can select degree or radian for the angular unit by pressing SYSTEM
→ Instrument Setup... → Angular Units...
°
°
2-62
RSA3408A Option 40 User Manual
Gain Ratio
Uplink Analysis
The Gain Ratio measurement displays the gain ratio (the ratio of channel power to
total power) for each channel along with time slots as shown in Figure 2-32. The
measurement results are color-coded for each channel. The height of a color band
at a given slot number represents the gain ratio of the corresponding channel at
that slot. On the left side of the main view, the color assignment and the β value
(relative channel power to DPCCH or DPDCH power whichever are greater as the
reference value (1)) are indicated for each channel.
Color assignment and
β
value at the marker position
for each channel
View: Scale Menu
Marker readout
• Horizontal value: Slot serial number in the analysis range (
• Vertical value: Gain ratio, Channel name (TP: Total power)
TS:
Slot number in the radio frame)
Horizontal line indicating the power (dBm)
set by VIEW: SCALE → Horizontal Line.
Gain ratio (ratio of channel power to total power)
indicated by the height of a color band.
Figure 2-32: Gain ratio
Use the following controls to scale the view.
Auto Scale.
Sets the start value and the scale of the vertical axis automatically
to fit the waveform to the screen.
Horizontal Scale.
Sets the scale of the horizontal axis (number of slots).
Range: N/8 to N slots (N: the number of slots in the analysis range.)
Horizontal Start.
Range: −(N − 1) to [1 − (Horizontal Scale)].
Vertical Scale.
Vertical Stop.
Range: −52 to [(Vertical Scale) −2] dBm.
Full Scale.
Horizontal Line.
RSA3408A Option 40 User Manual
Sets the start slot number of the horizontal axis.
Sets the scale of the vertical axis. Range: 50 µ to 50 dB.
Sets the maximum value (top edge) of the vertical axis.
Sets the scale of vertical axis to the default full-scale value.
Sets the horizontal line position. Range: −100 to 30 dBm.
2-63
Uplink Analysis
2-64
RSA3408A Option 40 User Manual
Appendices
Appendix A: Scale Setting Range
This section lists the setting ranges of the horizontal and the vertical scales for the
views used in the 3GPP-R6 analysis.
Table A-1: Display format and scale
Display format Horizontal range Vertical range
Spectrum 0 Hz to 36 MHz
Spectrogram 0 Hz to 36 MHz Frame
Time domain view
2
CDP
CDP spectrogram
CDP vs. Symbol
CDP vs. Time slot
Symbol constellation
Symbol EVM 0 to 639 symbols (downlink)
Symbol eye diagram 0 to 639 symbols (downlink)
Symbol table 0 to (1024
1. Tf: Frame time; Nf: Frame number
2. CDP: Code Domain Power
3. The maximum number of symbols: 640 (downlink) / 1280 (uplink)
2
2
2
−
(Tf × Nf) to 0 s
0 to 511 channels (downlink)
0 to 255 channels (uplink)
0 to 511 channels (downlink)
0 to 255 channels (uplink)
0 to 639 symbols (downlink)
0 to 1279 symbols (uplink)
Slot −3999 to 0
−
15999 to 0 (Option 02)
Slot
3
Fixed Fixed
0 to 1279 symbols (uplink)
0 to 1279 symbols (uplink)
1
×
Nf) symbols NA
−
200 to +100 dBm
−
15999 to 0
Frame
−
63999 to 0 (Option 02)
−
200 to +100 dBm (Amplitude)
−
30 to +30 V (I/Q level)
−
300 to +300% (AM)
−
38.4 to +38.4 MHz (FM/FVT)
−
675 to +675 deg. (PM)
−
200 to +100 dB/dBm
Slot
−
3999 to 0
−
15999 to 0 (Option 02)
Slot
−
200 to +100 dB/dBm
−
200 to +100 dB/dBm
−
100 to +200% (EVM)
−
300 to +300% (amplitude error)
−
675 to +675 deg. (phase error)
Fixed
RSA3408A Option 40 User Manual
A-1
Appendix A: Scale Setting Range
A-2
RSA3408A Option 40 User Manual
Appendix B: Saving Measurement Results
You can save measurement results to files in the CSV (Comma Separated Values)
format using the SAVE key on the front panel, allowing you to import the file into
Microsoft Excel or other database systems. This section provides information
about file save specific to Option 40 3GPP-R6 analysis. For details on standard file
operations, refer to the RSA3408A User Manual.
Save Menu
NOTE.
If the hard disk space is less than 10 MB, the software stops saving the
measurement results.
The Save menu for the 3GPP-R6 analysis has the following controls:
Save State.
Save Data...
Saves the instrument settings.
Saves the input waveform (IQ data in the time domain) to a file in the
IQT format.
All Blocks. Saves all the acquired blocks.
Current Block. Saves the block currently displayed in the overview.
Current Area. Saves the data in the analysis range.
Item...
Select the measurement item to save.
Code Domain Power
Symbol Power
Symbol EVM
Symbol Table
Modulation Accuracy
The saved file format is listed in the next section.
Time Slot Offset.
Range: −[(the number of time slots in the analysis range) − 1] to 0.
Zero (0) represents the latest slot.
Number of Time Slots.
Range: 1 to [−(Time Slot Offset) + 1] (up to 4000 time slots).
RSA3408A Option 40 User Manual
Sets the start time-slot to save. (See Figure B-1.)
Sets the number of time slots to save. (See Figure B-1.)
B-1
Appendix B: Saving Measurement Results
Time Slot Offset
Saved FIle Format
Time Slot
−
n
……
Saved to a file
Number of Time Slots
−
−
1
2
0
Figure B-1: Setting the time slots to save
Measurement Content...
EVM. Selects EVM.
Mag Error. Selects the magnitude error.
Phase Error. Selects the phase error.
All. Selects all of the above.
Filename...
Specify a file name to save the results. For details on file operations,
Symbol EVM only. Selects the measurement content.
refer to the RSA3408A User Manual.
The file lists descriptions or measurement values under each header as shown in
Figure B-2. The saved file format depends on measurements. The following
subsections provide the format for each measurement.
B-2
Figure B-2: CSV file example (code domain power measurement)
RSA3408A Option 40 User Manual
Appendix B: Saving Measurement Results
Downlink
This subsection shows the saved file format for the downlink measurements.
Code Domain Power.
The saved file format depends on the setting of Symbol Rate
in the View Define menu.
Symbol Rate: Composite
Header Content
Measurement Code domain power
Date Time Date and time
Timeslot Index Time slot serial number in the analysis range
Timeslot No. Time slot number in the radio frame (0 to 14)
Total Power [dBm] Total power [dBm]
PSCH Power [dBm] P-SCH power [dBm]
SSCH Power [dBm] S-SCH power [dBm]
Code Power [dBm] Code power for each channel at the detected spreading factor, and
Channelization code at the detected spreading factor
@ spreading factor
Symbol Rate: Other than Composite
Header Content
Measurement Code domain power
Date Time Date and time
Timeslot Index Time slot serial number in the analysis range
Timeslot No. Time slot number in the radio frame (0 to 14)
Total Power [dBm] Total power [dBm]
PSCH Power [dBm] P-SCH power [dBm]
SSCH Power [dBm] S-SCH power [dBm]
Code Power [dBm] Code power for each channel at the specified spreading factor
RSA3408A Option 40 User Manual
B-3
Appendix B: Saving Measurement Results
Code domain power versus Symbol.
Header Content
Measurement CDP vs Symbol
Date Time Date and time of the waveform acquisition
Channelization Code No.
@SF256
Timeslot Index Time slot serial number in the analysis range
Timeslot No. Time slot number in the radio frame (0 to 14)
Channelization Code No. Channelization code at the detected or specified spreading factor
Total Power [dBm] Total power [dBm]
Symbol Power [dBm] Power
Channelization code at the spreading factor of 256
@ spreading factor
for each
symbol [dBm]
B-4
RSA3408A Option 40 User Manual
Appendix B: Saving Measurement Results
Symbol EVM.
The saved file format depends on the setting of Measurement Content
in the Save menu.
Measurement Content: Other than All
Header Content
Measurement Symbol EVM
Date Time Date and time of the waveform acquisition
Channelization Code No.
Channelization code at the spreading factor of 256
@SF256
Timeslot Index Time slot serial number in the analysis range
Timeslot No. Time slot number in the radio frame (0 to 14)
Channelization Code No. Channelization code at the detected or specified spreading factor
@ spreading factor
Symbol EVM [%] or
Symbol Mag Error [%] or
Symbol EVM [%], mag error [%], or phase error [degrees]
depending on the selection in Measurement Content.
1
Symbol Phase Error [deg]
1
You can select the unit of phase by pressing SYSTEM → Instrument Setup → Angular Units.
Measurement Content: All
Header Content
Measurement Symbol EVM
Date Time Date and time of the waveform acquisition
Channelization Code No.
@SF256
Timeslot Index Time slot serial number in the analysis range
Timeslot No. Time slot number in the radio frame (0 to 14)
Channelization Code No. Channelization code at the detected or specified spreading factor
Symbol EVM [%] Symbol EVM [%]
Symbol Mag Error [%] Mag error [%]
Symbol Phase Error [deg] Phase error [degrees]
1
You can select the unit of phase by pressing SYSTEM → Instrument Setup → Angular Units.
Channelization code at the spreading factor of 256
@ spreading factor
1
RSA3408A Option 40 User Manual
B-5
Appendix B: Saving Measurement Results
Symbol Table.
Header Content
Measurement Symbol EVM
Date Time Date and time of the waveform acquisition
Channelization Code No.
@SF256
Timeslot Index Time slot serial number in the analysis range
Timeslot No. Time slot number in the radio frame (0 to 14)
Channelization Code No. Channelization code at the detected or specified spreading factor
Modulation Type QPSK or 16QAM
Symbol Value Symbol value: 0 to 3 (QPSK) / 0 to 15 (16QAM). No rotation.
Modulation Accuracy.
Header Content
Measurement Modulation Accuracy
Date Time Date and time of the waveform acquisition
Timeslot Index Time slot serial number in the analysis range
Timeslot No. Time slot number in the radio frame (0 to 14)
EVM (rms) [%] RMS EVM [%]
EVM (peak) [%] Peak EVM [%]
Mag Error (rms) [%] RMS magnitude error [%]
Mag Error (peak) [%] Peak magnitude error [%]
Phase Error (rms) [deg] RMS phase error [deg]
Phase Error (peak) [deg] Peak phase error [deg]
PCDE [dB] PCDE (Peak Code Domain Error) [dB]
PCDE (Active) [dB] PCDE for active channels only [dB]
Rho Waveform quality
Frequency Error [Hz] Frequency error [Hz]
Origin Offset [dB] Origin offset [dB]
SSCH, SCG, SCN, AGS,
AGV, RG, ACK
1
You can select the unit of phase by pressing SYSTEM → Instrument Setup → Angular Units.
Channelization code at the spreading factor of 256
@ spreading factor
1
1
Time slot table for the items selected by VIEW: DEFINE
Column Items to Display
→
B-6
RSA3408A Option 40 User Manual
Appendix B: Saving Measurement Results
Uplink
This subsection shows the saved file format for the uplink measurements.
Code Domain Power.
The saved file format depends on the settings of View Format
and Symbol Rate in the View Define menu.
View Format: Channel
Header Content
Measurement Code domain power
Date Time Date and time of the waveform acquisition
Spreading Factor Composite, or 2 to 256
Timeslot Index Time slot serial number in the analysis range
Timeslot No. Time slot number in the radio frame (0 to 14)
Total Power [dBm] Total power [dBm]
Total Power (Offset) [dBm] Offset total power for HS-DPCCH [dBm]
DPCCH Power (Offset)
[dBm]
Code Power [dBm] Code power for each channel (0 to 12) [dBm]
View Format: I/Q Split, Symbol Rate: Composite
Header Content
Measurement Code domain power
Date Time Date and time of the waveform acquisition
Spreading Factor Composite, or 2 to 256
Timeslot Index Time slot serial number in the analysis range
Timeslot No. Time slot number in the radio frame (0 to 14)
Total Power [dBm] Total power [dBm]
Total Power (Offset) [dBm] Offset total power for HS-DPCCH [dBm]
DPCCH Power (Offset)
[dBm]
Code Power [dBm] Code power for each channel at the detected spreading factor [dBm]
Offset DPCCH power for HS-DPCCH [dBm]
Offset DPCCH power for HS-DPCCH [dBm]
Channelization code at the detected spreading factor
@ spreading factor
RSA3408A Option 40 User Manual
B-7
Appendix B: Saving Measurement Results
Symbol Rate: Other than Composite
Header Content
Measurement Code domain power
Date Time Date and time of the waveform acquisition
Spreading Factor Composite, or 2 to 256
Timeslot Index Time slot serial number in the analysis range
Timeslot No. Time slot number in the radio frame (0 to 14)
Total Power [dBm] Total power [dBm]
Total Power (Offset) [dBm] Offset total power for HS-DPCCH [dBm]
DPCCH Power (Offset)
[dBm]
Code Power [dBm]
I Code power for each channel on the I branch at the specified
Q Code power for each channel on the Q branch at the specified
Offset DPCCH power for HS-DPCCH [dBm]
spreading factor [dBm]
spreading factor [dBm]
B-8
RSA3408A Option 40 User Manual
Appendix B: Saving Measurement Results
Code Domain Power versus Symbol.
The saved file format depends on the settings
of View Format in the View Define menu.
View Format: Channel
Header Content
Measurement CDP vs Symbol
Date Time Date and time of the waveform acquisition
Channel No. Channel number
Channel Name Channel name
Timeslot Index Time slot serial number in the analysis range
Timeslot No. Time slot number in the radio frame (0 to 14)
Channelization Code No. Channelization code at the detected or specified spreading factor
@ spreading factor
I/Q Branch I or Q (determined by channel)
Total Power [dBm] Total power [dBm]
DPCCH Power [dBm] DPCCH power [dBm]
Symbol Power [dBm] Power for each symbol [dBm]
View Format: I/Q Split
Header Content
Measurement CDP vs Symbol
Date Time Date and time of the waveform acquisition
Channelization Code No.
@SF256
I/Q Branch I/Q Branch setting
Timeslot Index Time slot serial number in the analysis range
Timeslot No. Time slot number in the radio frame (0 to 14)
Channel Name Channel name
Channelization Code No. Channelization code at the detected or specified spreading factor
Total Power [dBm] Total power [dBm]
DPCCH Power [dBm] DPCCH power [dBm]
Symbol Power [dBm] Power for each symbol [dBm]
Channelization code at the spreading factor of 256
(blank if the channel has no name or I/Q Branch is set to I/Q)
@ spreading factor
RSA3408A Option 40 User Manual
B-9
Appendix B: Saving Measurement Results
Symbol EVM.
The saved file format depends on the settings of View Format in the
View Define menu.
View Format: Channel
Header Content
Measurement Symbol EVM
Date Time Date and time of the waveform acquisition
Channel No. Channel number
Channel Name Channel name
Timeslot Index Time slot serial number in the analysis range
Timeslot No. Time slot number in the radio frame (0 to 14)
Channelization Code No. Channelization code at the detected or specified spreading factor
@ spreading factor
I/Q Branch I or Q (determined by channel)
Symbol EVM [%] or
Symbol Mag Error [%] or
Symbol Phase Error [deg]
1
You can select the unit of phase by pressing SYSTEM → Instrument Setup → Angular Units.
View Format: I/Q Split
Symbol EVM [%], mag error [%], or phase error [degrees]
depending on the selection in the VIEW: SCALE
→
Measurement Content.
Header Content
Measurement Symbol EVM
Date Time Date and time of the waveform acquisition
Channelization Code No.
Channelization code at the spreading factor of 256
@SF256
I/Q Branch I/Q Branch setting
Timeslot Index Time slot serial number in the analysis range
Timeslot No. Time slot number in the radio frame (0 to 14)
Channel Name Channel name
(blank if the channel has no name or I/Q Branch is set to I/Q)
Channelization Code No. Channelization code at the detected or specified spreading factor
@ spreading factor
I/Q Branch I or Q (determined by channel)
Symbol EVM [%] or
Symbol Mag Error [%] or
Symbol Phase Error [deg]
1
You can select the unit of phase by pressing SYSTEM → Instrument Setup → Angular Units.
Symbol EVM [%], mag error [%], or phase error [degrees]
depending on the selection in the VIEW: SCALE
→
Measurement Content.
1
1
B-10
RSA3408A Option 40 User Manual
Appendix B: Saving Measurement Results
Symbol Table.
The saved file format depends on the settings of View Format in the
View Define menu.
View Format: Channel
Header Content
Measurement Symbol EVM
Date Time Date and time of the waveform acquisition
Channel No. Channel number
Channel Name Channel name
Timeslot Index Time slot serial number in the analysis range
Timeslot No. Time slot number in the radio frame (0 to 14)
Channelization Code No. Channelization code at the detected or specified spreading factor
@ spreading factor
I/Q Branch I or Q (determined by channel)
Symbol Value Symbol value: 0, 1, or X. No rotation.
View Format: I/Q Split
Header Content
Measurement Symbol EVM
Date Time Date and time of the waveform acquisition
Channelization Code No.
@SF256
I/Q Branch I/Q Branch setting
Timeslot Index Time slot serial number in the analysis range
Timeslot No. Time slot number in the radio frame (0 to 14)
Channel Name Channel name
Channelization Code No. Channelization code at the detected or specified spreading factor
Symbol Value Symbol value: 0, 1, or X. No rotation.
Channelization code at the spreading factor of 256
(blank if the channel has no name or I/Q Branch is set to I/Q)
@ spreading factor
RSA3408A Option 40 User Manual
B-11
Appendix B: Saving Measurement Results
Modulation Accuracy.
Header Content
Measurement Modulation Accuracy
Date Time Date and time of the waveform acquisition
Timeslot Index Time slot serial number in the analysis range
Timeslot No. Time slot number in the radio frame (0 to 14)
EVM (rms) [%] RMS EVM [%]
EVM (peak) [%] Peak EVM [%]
Mag Error (rms) [%] RMS magnitude error [%]
Mag Error (peak) [%] Peak magnitude error [%]
Phase Error (rms) [deg] RMS phase error [deg]
Phase Error (peak) [deg] Peak phase error [deg]
PCDE [dB] PCDE (Peak Code Domain Error) [dB]
PCDE (Active) [dB] PCDE for active channels only [dB]
Rho Waveform quality
Frequency Error [Hz] Frequency error [Hz]
Origin Offset [dB] Origin offset [dB]
SIG, PRE, TPC, TFCI,
ACK, CQI, Offset, RSN,
E-TFCI, Happy
1
You can select the unit of phase by pressing SYSTEM → Instrument Setup → Angular Units.
1
1
Time slot table for the items selected by VIEW: DEFINE
Column Items to Display
→
B-12
RSA3408A Option 40 User Manual
Glossary and Index
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