R&S®FS-K83
Test and Measurement
Software Manual
cdma2000/1xEV–DV Mobil Stations Test
Software Manual
1007.9800.42 – 06
Das Softwarehandbuch R&S®FS-K83 beschreibt folgende Modelle:
( R&S®FMU
( R&S®FSG
R&S®FSMR
(
( R&S®FSP
( R&S®FSQ
( R&S®FSU
( R&S®FSUP
© 2012 Rohde & Schwarz GmbH & Co. KG
81671 Munich, Germany
Printed in Germany – Änderungen vorbehalten – Daten ohne Genauigkeitsangabe sind unverbindlich.
R&S® ist eingetragenes Warenzeichen der Firma Rohde & Schwarz GmbH & Co. KG.
Eigennamen sind Warenzeichen der jeweiligen Eigentümer.
Die folgenden Abkürzungen werden im Handbuch verwendet:
®
FS-K83 ist abgekürzt als R&S FS-K83..
R&S
&S FS-K83 Table of Contents
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Table of Contents
Documentation Overview................................................................... 5
cdma2000 Mobile Station Test Application Firmware R&S FS-K83 6
1 Installing and Enabling the Application Firmware........................... 7
1.1 Installation ....................................................................................................................7
1.2 Enabling ........................................................................................................................7
2 Getting Started.................................................................................... 8
2.1 Generating a cdma2000 reverse link signal with WinIQSIM....................................9
2.2 Default settings in cdma2000 MS operating mode.................................................11
2.3 Measurement 1: Measurement of the signal power ...............................................12
2.4 Measurement 2: Measurement of the spectrum emission mask ..........................13
2.5 Measurement 3: Measurement of the relative code domain power and the
frequency error ...........................................................................................................14
2.6 Setting: Synchronizing the reference frequencies.................................................15
2.7 Setting: Behaviour with deviating center frequency setting.................................15
2.8 Measurement 4: Triggered measurement of the relative code domain power....16
2.9 Setting: Trigger offset ...............................................................................................17
2.10 Measurement 5: Measurement of the composite EVM ..........................................18
2.11 Measurement 6: Measurement of the peak code domain error ............................19
2.12 Measurement 7: Measurement of the RHO factor ..................................................20
3 Test Setup for Mobile Station Tests................................................ 21
3.1 Standard test setup ...................................................................................................21
4 Predefined Channel Tables.............................................................. 23
5 Menu Overview ................................................................................. 25
6 Configuration of cdma2000 Measurements.................................... 28
6.1 Measuring channel power.........................................................................................28
6.2 Measuring adjacent channel power - ACLR............................................................29
6.3 Signal power check – SPECTRUM EM MASK .........................................................39
6.4 Measuring bandwidth occupied by the signal - OCCUPIED BANDWIDTH ..........45
Software Manual 1007.9800.42 - 06 1
&S FS-K83 Table of Contents
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6.5 Signal statistics..........................................................................................................47
6.6 Code-Domain-Measurements an cdma2000-Signalen ...........................................51
6.6.1 Presentation of analyses - RESULTS..........................................................................54
6.6.2 Measurement configuration - CHAN CONF hotkey.....................................................72
.6.3
6
6.6.4 Frequency settings – FREQ key..................................................................................83
6.6.5 Span-Einstellungen - Taste SPAN...............................................................................84
6.6.6 Pegel-Einstellung - Taste AMPT..................................................................................85
6.6.7 Marker settings - MKR key ..........................................................................................86
6.6.8 Changing instrument settings- Taste MKR..............................................................87
6.6.9 Marker functions – MKR FCTN key .............................................................................88
6.6.10 Bandwidth setting – BW key ........................................................................................88
6.6.11 Measurement control – SWEEP key ...........................................................................88
6.6.12 Measurement selection – MEAS key...........................................................................88
6.6.13 Trigger settings – TRIG key.........................................................................................89
6.6.14 Trace settings – TRACE key .......................................................................................89
6.6.15 Display lines – LINES key............................................................................................90
6.6.16 Measurement screen settings – DISP key ..................................................................91
6.6.17 Storing and loading of device data – FILE key ............................................................91
6.6.18 Preset of device – PRESET key..................................................................................91
onfiguring the application firmware – SETTINGS.....................................................77
C
6.6.19 Calibration of device – CAL key...................................................................................91
6.6.20 Setup of device – SETUP key .....................................................................................91
6.6.21 Printing – HCOPY key .................................................................................................91
7 Remote Control Commands ............................................................ 92
7.1 CALCulate:FEED subsystem....................................................................................92
7.2 CALCulate:LIMit:SPECtrum Subsystem .................................................................94
7.3 CALCulate:MARKer - Subsystem.............................................................................96
7.4 CALCulate:PEAKsearch | PSEarch- Subsystem ....................................................98
7.5 CALCulate:STATistics - Subsystem ........................................................................98
7.6 CONFigure:CDPower subsystem...........................................................................100
7.7 INSTrument Subsystem ..........................................................................................107
7.8 SENSe:CDPower Subsystem..................................................................................108
7.9 TRACe subsystem ...................................................................................................117
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&S FS-K83 Table of Contents
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7.10 STATus-QUEStionable:SYNC register ..................................................................126
7.11 Table of softkeys with assignment of IEC-bus commands .................................127
7.11.1 MEAS key and MEAS hotkey ....................................................................................127
7.11.2 Hotkey RESULTS bzw Softkey CODE DOM ANALYZER.........................................130
.11.3
7
7.11.4 Hotkey SETTINGS.....................................................................................................132
otkey CHAN CONF .................................................................................................131
H
8 Checking the Rated Specifications............................................... 134
8.1 Measuring equipment and accessories ................................................................134
8.2 Test sequence ..........................................................................................................135
9 Code Table for Hadamard and BitReverse Order......................... 137
Glossary .......................................................................................... 139
Index ................................................................................................ 141
Software Manual 1007.9800.42 - 06 3
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S-K83 Documentation Overview
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Documentation Overview
The user documentation for the R&S FS-K92/93/94 is divided as follows:
? R&S®FMU
? R&S®FSG
? R&S®FSP
? R&S®FSQ
? R&S®FSU
? R&S®FSUP
Software Manual 1007.9800.42 - 06 5
&S
S-K83 cdma2000 Mobile Station Test Application Firmware R&S FS-K83
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cdma2000 Mobile Station Test Application Firmware R&S FS-K83
When configured with Application Firmware R&S FS-K83, the analyzer performs code
domain power measurements on reverse link signals (mobile station) on the basis of
he 3GPP2 Standard (Third Generation Partnership Project 2).
t
"Physical Layer Standard for cdma2000 Spread Spectrum Systems Release C" of
version C.S0002-C V1.0 dated May 2002 and “Recommended Minimum
Performance Standard for cdma2000 Spread Spectrum Base Stations“ of version
C.S0010-B dated December 2002 form the basis
This standard has been adopted by the following authorities with the specified norm:
? TIA: dated February 2003 (also known as IS-97-E)
Reference made to the cdma2000 specification in the following text alludes to these
standards.
The application firmware supports the radio configurations 3 and 4. Apart from
cdma2000 reverse link signals, the 1xEV-DV reverse link channels of Release C are
also supported. Code Domain Analysis is also possible at signals where the pilot
channel is at least active in one of captured power control groups (pilot gating). In
addition to the code domain measurements described in the cdma2000 Standard, the
application features measurements in the spectral range such as channel power,
adjacent channel power, occupied bandwidth and spectrum emission mask with
predefined settings.
Software Manual 1007.9800.42 - 06 6
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S-K83 Installing and Enabling the Application Firmware
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1 Installing and Enabling the Application
Firmware
1.1 Installation
If Application Firmware R&S FS-K83 has not been installed on the device, a firmware
update will have to be performed. This will have been done already if the application
software was installed at the factory.
Before the application firmware can be installed, a corresponding basic firmware of the
basic device has to be installed on the analyzer. Refer to the release notes of the
current Application Firmware R&S FS-K83 for the compatible versions.
If the basic firmware has to be updated, start the firmware update from the current
floppy disks of the basic firmware by successively pressing
SETUP NEXT FIRMWARE UPDATE.
If the correct basic firmware is installed, the firmware update for the application
firmware is started from the floppy disks for the firmware of the R&S FS-K83
application using the same key sequence - SETUP NEXT FIRMWARE UPDATE.
Following installation, the application firmware has to be enabled as described below.
Installation
1.2 Enabling
Application Firmware R&S FS-K83 is enabled in the SETUP GENERAL SETUP
menu by entering a keyword. The keyword is supplied with the application firmware.
When the application software is installed before the device leaves the factory, the
application firmware will already have been enabled.
GENERAL SETUP menu:
OPTIONS
The OPTIONS softkey opens a submenu in which the keywords can be entered for the
application firmware. The available applications are displayed in a table, which is
opened when you enter the submenu.
INSTALL OPTION
The INSTALL OPTION softkey activates input of the keyword for an application
firmware.
One or several keywords can be entered in the input field. If the keyword is valid, the
message OPTION KEY OK is displayed and the application firmware is entered in the
FIRMWARE OPTIONS table.
If a keyword is invalid, the message OPTION KEY INVALID is displayed.
If the version of the application firmware and the version of the basic firmware are not
compatible, an appropriate message is issued. In this instance, follow the instructions
contained in the previous section, "Installation".
Software Manual 1007.9800.42 - 06 7
&S
S-K83 Getting Started
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2 Getting Started
The following chapter explains basic cdma2000 mobile station tests using a test setup
with the Signal Generator SMIQ as the device under test. It describes how operating
and measuring errors can be avoided by means of correct default settings.
The measurement screen is presented in Chapter 0 for the different measurements.
Attention is drawn to important settings exemplifying how to avoid measurement errors
during measurements. The correct setting is followed by the effect of an incorrect
setting. The following measurements are performed:
Measurement 1: Measurement of the signal spectrum
Measurement 2: Measurement of the spectrum emission mask
Measurement 3: Measurement of the relative code domain power and the frequency
error
Setting: Center frequency
Enabling
Measurement 4: Triggered measurement of the relative code domain power
Setting: Triggeroffset
Measurement 5: Measurement of the composite EVM
Measurement 6: Measurement of the peak code domain error
Measurement 7: Measurement of the RHO factor
The cdma2000 raw data are created with the R&S WinIQSIM software and loaded into
the arbitrary waveform generator of the R&S SMIQ.
The measurements are performed with the following instruments and aids:
? Spectrum Analyzers R&S FSU, R&S FSP or Signal Analyzer R&S FSQ with
Application Firmware R&S FS-K83 (mobile station test for cdma2000).
? Vector Signal Generator SMIQ with hardware options B11 (data generator) / B20
(modulation coder) and B60 (arbitrary waveform generator) together with firmware
version 5.20 or higher with enabled option K12 cdma2000 and SMIQ-Z5 PARDATA
BNC ADAPTER for external trigger signal.
? PC that is either connected by means of a serial cable to the SMIQ, or has an IEC-
bus card and connected by means of an IEC-bus cable to the SMIQ. R&S
WinIQSIM Software V3.20 or higher is installed on that PC. The software can be
downloaded from the Rohde & Schwarz web site on the Internet at
http://www.rohde-schwarz.com
? 1 coaxial cable, 50 , approximately 1 m, N connector
? 2 coaxial cables, 50 , approximately 1 m, BNC connector
.
Software Manual 1007.9800.42 - 06 8
&S
S-K83 Getting Started
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Generating a cdma2000 reverse link signal with WinIQSIM
2.1 Generating a cdma2000 reverse link signal with WinIQSIM
The WinIQSIM software can be downloaded at http://www.rohde-schwarz.com and is
installed on a PC. The WinIQSIM software can be used to generate cdma2000 reverse
ink signals, which are then transferred on an SMIQ or AMIQ. An explanation is given
l
below of how the test signal described in the cdma2000 standard is generated.
WinIQSIM version 3.20 or higher is assumed.
Selecting Start and Standard:
a. Start WinIQSIM.exe.
b. In the File menu, select the New option and select CDMA2000 from the list
that follows. The CDMA2000 dialog box appears.
c. Under General Settings, first select Reverse Link to switch to the mobile
station signals. Activate MS1 by clicking ON and then click MS1 to configure
mobile station 1.
d. Set RC 3 for Radio Configuration. The dialog box looks like the one below:
Fig. 1 WinIQSIM mobile station configuration for RC 3 prior to defining the
active channels
Activate channels:
In this mobile station configuration, the following settings are performed so that
a reverse link signal with pilot channel (PICH), fundamental channel (FCH) and
supplemental channel 1 (S1CH) is generated
Set PICH State, FCH State and S1CH State to ON. Set the data rate for the FCH to
19.2 kbps and the data rate for the S1CH to 76.8 kbps; these are the highest
data rates at which the FCH is sent with code number 4 at spreading factor 16
(Q branch) and the S1CH is sent with code number 2 at spreading factor 4 (Q
Software Manual 1007.9800.42 - 06 9
&S
S-K83 Getting Started
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Generating a cdma2000 reverse link signal with WinIQSIM
branch). The data rate cannot be modified at the pilot; is always sent with code
number 0 at spreading factor 32 (I branch).
Fig. 2 WinIQSIM configuration with active channels
Define trigger settings:
Then, set the trigger settings on the SMIQ menu by choosing the option Trigger
Output Settings. For the Current Mode: Mode 1 the Restart Clock
(SEQUENCE) is defined. This means that the trigger at the slot limit is available
every 80 ms at TRIG1 of the SMIQ Z5 BNC adapters.
Fig. 3 WinIQSIM base station configuration of the finished model
Save and download to R&S SMIQ:
a. Save this cdma2000 configuration with File|Save as file 'C2KMS.IQS'.
Software Manual 1007.9800.42 - 06 10
&S
S-K83 Getting Started
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Default settings in cdma2000 MS operating mode
b. Connect the R&S SMIQ e either serially or by means of an IEC-bus card and
IEC-bus cable to the SMIQ and, in the SMIQ|TRANSMISSION menu, load the
generated signal under the name 'C2KMS' onto the R&S SMIQ.
2.2 Default settings in cdma2000 MS operating mode
At the default setting after PRESET, the analyzer is in SPECTRUM mode. The
following basic settings of the code domain measurement are not activated until the
cdma2000 MS operating mode is selected by operating the CDMA2k MS hotkey.
Table 1 Default setting of code domain measurement after preset
Parameter Setting
Digital standard CDMA 2000 MC1 (MC1 stands for Multi-Carrier 1
and thus describes cdma2000 1X, i.e. a carrier)
Band class Band class 0 (800 MHz band)
Sweep CONTINUOUS
CDP mode CODE CHAN AUTOSEARCH
Trigger setting FREE RUN
Trigger offset 0 s
Long code mask 0
Long code offset 0 chips
Threshold value -40 dB
Code number 0
PCG number 0
Capture length 3 PCGs (PCG stands for Power Control Group)
Code order Hadamard
Analysis Screen A: CODE PWR RELATIVE
Screen B: RESULT SUMMARY
? The following conventions apply for displaying settings on the analyzer:
[[<Key>] Press a key on the front panel, e.g. [SPAN]
[<SOFTKEY>] Press a softkey, e.g. [MARKER -> PEAK]
[<nn unit>] Enter a value and terminate by entering the unit, e.g. [12
kHz]
? The following conventions apply for displaying settings on the R&S SMIQ:
[[<Key>] Press a key on the front panel, e.g. [FREQ]
<MENU> Choose a menu, parameter or setting, e.g. DIGITAL STD.
The menu level is identified by indenting.
<nn unit> Enter a value and terminate by entering the unit, e.g. 12
kHz
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S-K83 Getting Started
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Measurement 1: Measurement of the signal power
2.3 Measurement 1: Measurement of the signal power
Measurement of the spectrum provides an overview of the cdma2000 signal and the
carrier-oriented spurious emissions.
Test setup
R Connect the RF output of the R&S SMIQ to the RF input of the analyzer (coaxial
cable with N connectors).
Settings on R&S SMIQ
[PRESET]
[LEVEL: 0 dBm]
[FREQ: 833.49 MHz]
ARB MOD
SET SMIQ ACCORDING TO WAVEFORM ...
SET SMIQ ACCORDING TO WAVEFORM ON
IQ SWAP (VECTOR MODE) ON
TRIGGER OUT MODE ON
(These three settings are only required once after generator preset and are used to
apply, in VECTOR MODE, the IQ SWAP and, in ARB MOD, the trigger setting
automatically from the waveform file generated by WinIQSIM. This is particularly
convenient when a switch is made between different waveforms.)
SELECT WAVEFORM... select nameC2KMS
STATE: ON
Settings on Analyzer:
[PRESET]
[FREQUENCY: 833.49 MHz]
[AMPT: 0 dBm]
[CDMA2k MS]
[MEAS: POWER]
Measurement on Analyzer:
The following are displayed:
? The spectrum of the cdma2000 signal
? The channel power of the signal within the 1.2288 MHz channel bandwidth
Software Manual 1007.9800.42 - 06 12
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S-K83 Getting Started
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Measurement 2: Measurement of the spectrum emission mask
2.4 Measurement 2: Measurement of the spectrum emission mask
The cdma2000 specification calls for a measurement which monitors compliance with
a spectral mask in a range of at least ±4.0 MHz around the cdma2000 carrier. To
ssess the power emissions within the specified range, signal power is measured with
a
a 30 kHz filter. The ensuing trace is compared with the limit line, defined in the
cdma2000 specification, according to the selected band class.
Test setup
Connect the RF output of the R&S SMIQ to the RF input of the analyzer (coaxial
cable with N connectors).
Settings on R&S SMIQ:
R&S SMIQ settings as for measurement 1
Settings on Analyzer:
[PRESET] Band class 0 is thus selected
[FREQUENCY: 833.49 MHz]
[AMPT: 0 dBm]
[CDMA2k MS
[MEAS: SPECTRUM EM MASK]
Measurement on Analyzer:
The following are displayed:
? The spectrum of the cdma2000 signal
? The limit line defined in the standard
? Information on limit line overranging (passed/failed)
? If available, the largest overrange with frequency and level value
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S-K83 Getting Started
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Measurement 3: Measurement of the relative code domain power and the frequency error
2.5 Measurement 3: Measurement of the relative code domain power and the frequency error
Measurement of the code domain power on a test model (with 3 channels) is shown
below. In this case the basic parameters of the CDP measurements, which allow
nalysis of the signal, reset successively from values adjusted to the test signal to
a
those that have not been adjusted in order to demonstrate the resulting effects.
Settings on R&S SMIQ:
R Connect the RF output of the R&S SMIQ to the RF input of the analyzer.
R Connect the reference input (EXT REF IN/OUT) on the rear panel of the analyzer
to the reference output (REF) on the R&S SMIQ (coaxial cable with BNC
connectors).
Settings on R&S SMIQ:
R&S SMIQ settings as for measurement 1.
Settings on Analyzer:
PRESET]
[FREQUENCY: 833.49 MHz]
[AMPT: 10 dBm]
[CDMA2k MS]
Measurement on Analyzer:
The following are displayed:
Screen A: Code domain power of signal (model with 3 channels)
Screen B: Numerical results of CDP measurement including the frequency error
Software Manual 1007.9800.42 - 06 14
&S
S-K83 Getting Started
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Setting: Synchronizing the reference frequencies
2.6 Setting: Synchronizing the reference frequencies
Synchronization of the transmitter and receiver to the same reference frequency
reduces the frequency error.
Test setup
R Connect the reference input (EXT REF IN/OUT) on the rear panel of the analyzer to
the reference output (REF) on the R&S SMIQ (coaxial cable with BNC connectors).
Settings on R&S SMIQ:
As for measurement 1
Settings on Analyzer:
As for measurement 3, plus:
[SETUP: REFERENCE EXT]
Measurement on Analyzer:
Screen B: Frequency error: The displayed frequency error should be <10 Hz
The reference frequencies of the analyzer and the device under test should be
synchronized.
2.7 Setting: Behaviour with deviating center frequency setting
In the following setting, the behaviour of the device under test and analyzer on a
deviating center frequency setting is shown.
Settings on R&S SMIQ:
R Tune the center frequency of the signal generator in 0.1 kHz steps and watch the
analyzer screen.
Measurement on Analyzer:
? Up to about 2.0 kHz frequency error, a CDP measurement is still possible on the
analyzer. A difference in the measurement accuracy of the CDP measurement is
not discernible up to this frequency error.
? From a frequency offset of 2.3 kHz and higher, the probability of an impaired
synchronization increases. The 'SYNC FAILED' message appears.
Settings on R&S SMIQ:
R Set the signal generator center frequency again to 833.49 MHz:
[FREQ: 833.49 MHz]
The center frequency of the analyzer must agree with the frequency of the device
under test to within a 2.0 kHz offset.
Software Manual 1007.9800.42 - 06 15
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S-K83 Getting Started
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Measurement 4: Triggered measurement of the relative code domain power
2.8 Measurement 4: Triggered measurement of the relative code domain power
If the code domain power measurement is performed without external triggering, an
extract is recorded from the test signal at a random point in time and attempts to detect
he start of power control group (PCG) in it. To detect this start, all possibilities of the
t
PN sequence location have to be tested in Free Run mode. This requires computing
time. This computing time can be reduced by creating an external (frame) trigger. The
search range for the start of the power control group are known and fewer options
have to be tested.
Test setup
R Connect the RF output of the R&S SMIQ to the RF input of the analyzer.
R Connect the reference frequencies (refer to measurement 2).
R Connect external triggering of the analyzer (EXT TRIG GATE) to the R&S SMIQ
trigger (TRIGOUT1 at PAR DATA).
Settings on R&S SMIQ:
As for measurement 1
Settings on Analyzer:
As for measurement 3, plus
[TRIG: EXTERN]
Measurement on Analyzer:
The following are displayed:
Screen A: Code domain power of signal
Screen B: Numerical results of CDP measurement
Trg to Frame:
The repetition rate of the measurement increases compared with measurement without
an external trigger.
Time offset between trigger event and start of the PCG
Software Manual 1007.9800.42 - 06 16
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S-K83 Getting Started
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Setting: Trigger offset
2.9 Setting: Trigger offset
Any delay of the trigger event compared to the start of the PCG can be compensated
by changing the trigger offset.
Settings on Analyzer:
As for measurement 3, plus
[TRIG:]
[TRIG OFFSET 100 Ds]
Measurement on Analyzer:
The parameter "Trg to Frame" in the numerical results table (Screen B) changes:
Trg to Frame -100 µs
A trigger offset compensates analog delays of the trigger event.
Software Manual 1007.9800.42 - 06 17
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S-K83 Getting Started
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Measurement 5: Measurement of the composite EVM
2.10 Measurement 5: Measurement of the composite EVM
Composite EVM is the measurement of the mean square error of the total signal, as
defined in the cdma2000 specification.
An ideal reference signal is generated from the demodulated data. The test signal and
he reference signal are compared with each other; the square deviation produces the
t
Composite EVM measurement.
Test setup
R Connect the RF output of the R&S SMIQ to the RF input of the analyzer (coaxial
cable with N connectors).
R Connect the reference input (EXT REF IN/OUT) on the rear panel of the analyzer
to the reference output (REF) on the R&S SMIQ (coaxial cable with BNC
connectors).
R Connect external triggering of the analyzer (EXT TRIG GATE) to the R&S SMIQ
trigger (TRIGOUT1 at PAR DATA).
Settings on R&S SMIQ:
R&S SMIQ settings as for measurement 1
Settings on Analyzer:
[PRESET]
[FREQUENCY: 833.49 MHz]
[AMPT: 10 dBm]
[CDMA2k MS
[TRIG EXTERN]
[RESULTS COMPOSITE EVM]
Measurement on Analyzer:
The following are displayed:
Screen A:
Screen B: Composite EVM (EVM for total signal)
Code domain power of signal
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S-K83 Getting Started
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Measurement 6: Measurement of the peak code domain error
2.11 Measurement 6: Measurement of the peak code domain error
With the peak code domain error measurement, an ideal reference signal is generated
from the demodulated data. The test signal and the reference signal are compared with
ach other; the difference between the two signals is projected to the class of the base
e
spreading factor. The peak code domain error measurement is obtained by summing
the symbols of each difference signal PCG and searching for the maximum error code.
Test setup
R Connect the RF output of the R&S SMIQ to the RF input of the analyzer (coaxial
cable with N connectors).
R Connect the reference input (EXT REF IN/OUT) on the rear panel of the analyzer
to the reference output (REF) on the R&S SMIQ (coaxial cable with BNC
connectors).
Settings on Analyzer:
[PRESET]
[FREQUENCY: 833.49 MHz]
[AMPT: 0 dBm]
[CDMA2k MS]
[RESULTS PEAK CODE DOMAIN ERR]
Measurement on Analyzer:
The following are displayed:
Screen A: Code domain power of signal
Screen B: Peak code domain error (for base spreading factor with default value 64)
Software Manual 1007.9800.42 - 06 19
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S-K83 Getting Started
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Measurement 7: Measurement of the RHO factor
2.12 Measurement 7: Measurement of the RHO factor
A measurement of the RHO factor is shown in the following. The RHO quality
parameter should be measured using a signal which only contains the pilot channel.
Accordingly, only the pilot has to be activated in a WinIQSIM model.
Settings on R&S SMIQ:
R Connect the RF output of the R&S SMIQ to the RF input of the analyzer.
R Connect the reference input (EXT REF IN/OUT) on the rear panel of the analyzer
to the reference output (REF) on the R&S SMIQ (coaxial cable with BNC
connectors).
Settings on R&S SMIQ:
R&S SMIQ settings as for measurement 1, but only the pilot has to be activated in the
WinIQSIM model.
Settings on Analyzer:
[PRESET]
[FREQUENCY: 833.49 MHz]
[AMPT: 10 dBm]
[CDMA2k MS]
Measurement on Analyzer:
The following are displayed:
Screen A: Code domain power of signal (only pilot from 0.32)
Screen B: Numerical results of CDP measurement including the RHO factor
Software Manual 1007.9800.42 - 06 20
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S-K83 Test Setup for Mobile Station Tests
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Standard test setup
3 Test Setup for Mobile Station Tests
ailure to comply with the above points may result in damage to the device.
F
Before putting the device into operation, make sure that
? The housing covers are in place and their screws have been tightened
? The ventilation slits are free
? No signal voltage levels above the permissible limits are applied to the inputs
? The outputs of the device are not overloaded or wrongly connected.
This chapter describes the default settings of the analyzer for operation as a
cdma2000 mobile station tester. A condition that has to be met before measurements
can start is that the analyzer is correctly configured and supplied with power, as
described in Chapter 1 of the operating manual for the basic device. Furthermore,
Application Firmware R&S FS-K83 must be enabled. Installation and enabling of the
application firmware are explained in Chapter 1 of this software manual.
3.1 Standard test setup
.
.
.
PECTRUM ANALYZER 20Hz . . . 3.6 GHz
S
SU
F
REQ
PRESET
CAL
S
ETUP
H
COPY
F
MKR
7
456
123
0
ESC
C
ANCEL
T
RACE
INES
L
D
ISP
FILE
PREV NEXT
Fig. 4 MS test setup
1129.9003.03
MPTSPAN
WSWEEP
A
B
IIN
KR
M
MKR
MEAS TRIG
FCTN
Hz
G
s
89
Q
IN
V
-
dBm
M
ms
Hz
m
V
dBm
N
OISE SOURCE
I
s
k
Hz
I
d
V
B
n
s
H
z
-
n
.
V
d
B..
P
OWER SENSOR
ENTER
B
ACK
FOUTPUT
EYBOARD
ROBE POWER
A
K
P
EN OUTPUT 50
FINPUT
XT MIXER
G
R
E
0
5
OOUT/ IF IN IF IN
L
M
M
AX+30 dBm / 0V D C
AX 0V DC
ADE IN GERMANY
M
INPUT
TX signal
RF
2
DEF
564
8
ÜVW7STU
.-0
SCRCL M
3
GHI1ABC
9
YZ
X
Software Manual 1007.9800.42 - 06 21
&S
S-K83 Test Setup for Mobile Station Tests
R
F
Standard test setup
R Connect the antenna output (or TX output) of the mobile station by means of a
power attenuator exhibiting suitable attenuation to the RF input of the analyzer.
The following level values for external attenuation are recommended to ensure that
the RF input of the analyzer is protected and the sensitivity of the device is not
impaired too much:
Maximum power Recommended external
attenuation
55 to 60 dBm 35 to 40 dB
50 to 55 dBm 30 to 35 dB
45 to 50 dBm 25 to 30 dB
40 to 45 dBm 20 to 25 dB
35 to 40 dBm 15 to 20 dB
30 to 35 dBm 10 to 15 dB
25 to 30 dBm 5 to 10 dB
20 to 25 dBm 0 to 5 dB
< 20 dBm 0 dB
R For signal measurements at the output of two-port networks, connect the reference
frequency of the signal source to the rear reference input of the analyzer (EXT
REF IN/OUT).
R To maintain the error limits called for in the cdma2000 specification during
frequency measurement on mobile stations, the analyzer has to be operated on an
external reference. The reference source might be a rubidium frequency standard,
for example.
R If the mobile station has a trigger output, connect the trigger output of the mobile
station to the rear trigger input of the analyzer (EXT TRIG GATE).
Default settings
R Enter the external attenuation.
[AMPT] [NEXT] [REF LVL OFFSET].
R Enter the reference level.
[AMPT]
R Enter the center frequency.
[FREQUENCY]
R Set the trigger.
[TRIG]
R During use, switch on external reference.
[SETUP] [REF: EXT]
R Select the standard and the desired measurement.
[CDMA2k MS] [RESULTS]
Software Manual 1007.9800.42 - 06 22
&S
S-K83 Predefined Channel Tables
R
F
Standard test setup
4 Predefined Channel Tables
By default, the application firmware works in automatic Channel Search mode (softkey
CODE CHAN AUTOSEARCH). However, there is also the option of using predefined
channel tables and taking the code domain analysis as a basis. To do this, select the
channel table and enable the predefined search mode (softkey CODE CHAN
PREDEFINED). In accordance with the cdma2000 specification, different channel
tables are defined for the various operating modes. They are listed below. Should
channels other than those that appear in the predefined channel tables of the firmware
application be used, the original tables should be copied and the channels adapted in
the copy. (Refer to the CHAN CONF hotkey on page 72.) With supplemental channels,
it is also possible to adapt the code number and spreading factor.
Channel table for ENHANCED ACCESS CHANNEL OPERATION with PICH and
EACH with the name EACHOP
Table 2 Channel table for enhanced access channel operation
Channel type Code channel
(Walsh Code.SF)
PICH 0.32 I
EACH 2.8 Q
Mapping
Channel table for REVERSE COMMOM CONTROL CHANNEL OPERATION with
PICH and CCCH with the name RCCCHOP
Table 3 Channel table for reverse common control channel operation
Channel type Code channel
(Walsh Code.SF)
PICH 0.32 I
CCCH 2.8 Q
Mapping
Channel table for REVERSE TRAFFIC CHANNEL OPERATION with the following 3
channels: PICH/DCCH/FCH with the name RTCHOP3.
Table 4 Channel table for REVERSE TRAFFIC CHANNEL OPERATION 3
Channel type Code channel
(Walsh Code.SF)
PICH 0.32 I
Mapping
FCH 4.16 Q
S1CH 2.4 Q
Software Manual 1007.9800.42 - 06 23
&S
S-K83 Predefined Channel Tables
R
F
Standard test setup
Channel table for REVERSE TRAFFIC CHANNEL OPERATION with the following 5
channels: PICH/DCCH/FCH/S1CH/S2CH with the name RTCHOP5.
Table 5 Channel table for REVERSE TRAFFIC CHANNEL OPERATION 5
Channel type Code channel (Walsh
Code.SF)
PICH 0.32 I
DCCH 8.16 I
FCH 4.16 Q
S1CH 2.4 Q
S2CH 6.8 I
Mapping
For further information on the channel table defaults, refer to hotkey CHAN CONF.
The channel abbreviations are defined in Glossary
Software Manual 1007.9800.42 - 06 24
&S
S-K83 Menu Overview
R
F
Standard test setup
5 Menu Overview
Application Firmware R&S FS-K83 (cdma2000 mobile station tests) adds RF
measurements and code domain power measurements for the cdma2000 Forward
Link mobile radio standard to the analyzer.
PECTRUM
S
Fig. 5 Hotkey bar with enabled Application Firmware R&S FS-K83
DMA2k MS
C
CREEN B
S
After the application firmware has been called by operating hotkey CDMA2k MS (2k
stands for 2 thousand, i.e. cdma2000), a new hotkey bar is displayed at the bottom
edge of the screen and the code domain analyzer is selected and started.
Fig. 6 Overview of the menus in Application Firmware R&S FS-K83
Software Manual 1007.9800.42 - 06 25
&S
S-K83 Menu Overview
R
F
Standard test setup
There are different analyses for the code domain analyzer. They can be selected by
means of the RESULTS hotkey. The SETTINGS hotkey allows the application
firmware to be parameterized. The base spreading factor or the band class can be set
in this menu, for example. The CHAN CONF hotkey is used to set Channel Search
mode for the code domain analyzer. Furthermore, the customer can also define his
own channel tables.
The MEAS hotkey is identical to the MEAS key (on the right of the front panel) and is
used to select the different RF measurements or the code domain analyzer.
Clicking the CHAN CONF or RESULTS hotkey automatically switches to the code
domain analyzer.
Pressing the EXIT CDMA hotkey once exits R&S FS-K83. The hotkey bar of the basic
device is displayed again and the analyzer goes to SPECTRUM, the default mode.
Transition from the SPECTRUM operating mode to the application firmware:
The following user-specific settings are not modified so that the adaptation to the device under test is
retained:
Reference Level + Rev Level Offset
Center Frequency + Frequency Offset
Input Attenuation + Mixer Level
The following user-specific settings are transferred as follows:
External trigger sources are retained, while all other trigger sources result in Free Run mode.
Additional trigger settings are retained.
Transition from the application firmware to the SPECTRUM operating mode:
The following user-specific settings are not modified so that the adaptation to the device under test is
retained:
Reference Level + Rev Level Offset
Center Frequency + Frequency Offset
Input Attenuation + Mixer Level
The following user-specific settings are transferred as follows:
The trigger source is switched to FREE RUN and an analyzer frequency sweep is set with the SPAN
equal to the double the center frequency, or the maximum possible span, so that the center
frequency remains unchanged at any event.
Software Manual 1007.9800.42 - 06 26
&S
S-K83 Menu Overview
R
F
Standard test setup
The measurements available in R&S FS-K83 can be selected by means of the MEAS
hotkey or the MEAS key:
Fig. 7 Overview of menus
Software Manual 1007.9800.42 - 06 27
&S
S-K83 Configuration of cdma2000 Measurements
R
F
Measuring channel power
6 Configuration of cdma2000 Measurements
The most important measurements of the cdma2000 specification for mobile stations
can be selected by means of the MEAS hotkey and MEAS key. They will be explained
below on the basis of the softkey functions.
The CODE DOM ANALYZER softkey activates the code domain analyzer and guides
the user to the submenus for selection of the analysis. Changing the assignment of the
hotkey bar during transition to the application ensures that the most important
parameters of the code domain analyzer can be directly accessed on the hotkey bar.
The POWER, ACLR, SPECTRUM EM MASK, OCCUPIED BANDWIDTH, and
STATISTICS softkeys activate mobile station measurements with predefined settings,
which are performed in SPECTRUM mode of the basic device. The measurements are
performed with the parameters contained in the cdma2000 specification. The settings
can be modified later.
MEAS key or MEAS hotkeys
The MEAS hotkey or the MEAS key opens a submenu for selecting the
measurements:
? POWER enables the channel power measurement with defined default values in
SPECTRUM mode.
? ACLR enables the adjacent channel power measurement with defined default
values in SPECTRUM mode..
? SPECTRUM EM MAS
carrier with the maximum values laid down in the cdma2000 specification.
? OCCUPIED BANDWIDTH
signal.
? CODE DOM ANALYZER
menu for choosing the analysis type. All other menus of the analyzer are adapted
to the functions of the code domain analyzer mode. The code domain analyzer is
described in a separate chapter starting on page 51.
? STATISTICS analyzes the signal with regard to its statistical characteristics
(distribution function of the signal amplitudes).
K compares the signal power in different offset ranges of the
enables measurement of the bandwidth assigned to the
enables the code domain analyzer and opens another
6.1 Measuring channel power
POWER
The POWER softkey enables measurement of the channel power of the cdma2000
signal.
The analyzer measures the RF signal power in the 1.2288 MHz bandwidth. The power
is calculated by summation of the values at the trace points. The bandwidth and the
associated channel power are displayed beneath the measurement screen.
Software Manual 1007.9800.42 - 06 28
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