R&S CMW-KG4 Series User manual

R&S®CMW-KG4xx/-KM4xx/-KS4xx
WCDMA Firmware Applications
User Manual
User Manual
(;×îÇ2)
1173.9657.02 ─ 11
Test & Measurement
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This user manual describes the following R&S®CMW options:
●R&S®CMW-KG400 (WCDMA R99, generator, downlink)
●R&S®CMW-KG401 (WCDMA R5/6 HSPA, generator, downlink)
●R&S®CMW-KM400 (WCDMA R99, TX measurement, uplink)
●R&S®CMW-KM401 (WCDMA R5/6 HSPA, TX measurement, uplink)
●R&S®CMW-KM403 (WCDMA R7 HSPA+, TX measurement, uplink)
●R&S®CMW-KM405 (WCDMA R9 HSPA+, TX measurement, uplink)
●R&S®CMW-KM012 (TX measurement, multi evaluation list mode)
●R&S®CMW-KS170 (Alerting network support, generic signaling)
●R&S®CMW-KS400 (WCDMA R99, basic signaling)
●R&S®CMW-KS401 (WCDMA R5/6 HSPA, basic signaling)
●R&S®CMW-KS403 (WCDMA R7 HSPA+, basic signaling)
●R&S®CMW-KS404 (WCDMA R8, basic signaling)
●R&S®CMW-KS405 (WCDMA R9 DB-HSDPA, basic signaling)
●R&S®CMW-KS410 (WCDMA R99, advanced signaling)
●R&S®CMW-KS411 (WCDMA R5/6 HSPA, advanced signaling)
●R&S®CMW-KS413 (WCDMA R7 HSPA+, advanced signaling)
●R&S®CMW-KS425 (WCDMA, user defined bands, generic signaling)
●R&S®CMW-KE100 (Basic fading support: AWGN generator)
●R&S®CMW-KE400 (WCDMA fading profiles TS 25.101, excerpts)
© 2014 Rohde & Schwarz GmbH & Co. KG
Mühldorfstr. 15, 81671 München, Germany
Phone: [phone] - 0
Fax: [phone]
E-mail: [email protected]
Internet: www.rohde-schwarz.com
Subject to change – Data without tolerance limits is not binding.
R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG.
Trade names are trademarks of the owners.
The following abbreviations are used throughout this manual: R&S®CMW is abbreviated as R&S CMW.
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Contents
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Contents
1Preface.................................................................................................. 11
1.1 How to Read Firmware Application Chapters.......................................................... 11
1.1.1 General Description...................................................................................................... 11
1.1.2 Application Sheets........................................................................................................ 12
1.1.3 GUI Reference.............................................................................................................. 12
1.1.4 Programming Examples................................................................................................12
1.1.5 Command Reference.................................................................................................... 12
2WCDMA Signaling................................................................................13
2.1 What's New in this Revision.......................................................................................14
2.2 General Description.................................................................................................... 15
2.2.1 Test Setups................................................................................................................... 15
2.2.2 Initiating Signaling Tests............................................................................................... 19
2.2.3 Reduced Signaling Mode.............................................................................................. 20
2.2.4 End to End Packet Data Connections...........................................................................23
2.2.5 Audio Measurements.................................................................................................... 23
2.2.6 External Fading............................................................................................................. 25
2.2.7 Internal Fading.............................................................................................................. 26
2.2.8 Connection States.........................................................................................................27
2.2.9 Handover.......................................................................................................................33
2.2.10 Physical DL Channels................................................................................................... 35
2.2.11 Connection Types......................................................................................................... 42
2.2.12 Operating Bands........................................................................................................... 49
2.2.13 Trigger Signals.............................................................................................................. 52
2.2.14 Transmit Power Control (TPC)......................................................................................54
2.2.15 Random Access Procedure.......................................................................................... 62
2.2.16 Continuous Packet Connectivity (CPC)........................................................................ 63
2.2.17 WCDMA Wizards.......................................................................................................... 65
2.2.18 BER Measurement........................................................................................................68
2.2.19 HSDPA ACK Measurement.......................................................................................... 73
2.2.20 E-HICH Measurement...................................................................................................77
2.2.21 RLC Throughput Measurement.....................................................................................80
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2.2.22 UL Logging Measurement.............................................................................................82
2.3 Application Sheets......................................................................................................86
2.3.1 Combined Signal Path Measurements..........................................................................86
2.3.2 Handover from WCDMA to GSM.................................................................................. 89
2.3.3 Inner Loop Power Control Tests................................................................................... 93
2.3.4 Maximum Power Measurements with E-DCH...............................................................98
2.3.5 CS Phase Discontinuity Measurements......................................................................102
2.4 GUI Reference........................................................................................................... 107
2.4.1 Signaling View.............................................................................................................108
2.4.2 Signaling and Connection Control...............................................................................134
2.4.3 Using the Shortcut Softkeys........................................................................................137
2.4.4 Using the WCDMA Wizards........................................................................................ 138
2.4.5 General Settings......................................................................................................... 139
2.4.6 I/Q Settings................................................................................................................. 141
2.4.7 RF Settings................................................................................................................. 143
2.4.8 Internal Fading............................................................................................................ 151
2.4.9 Physical Channel DL Settings.....................................................................................154
2.4.10 Physical Channel UL Settings.....................................................................................167
2.4.11 Connection Configuration............................................................................................179
2.4.12 Network Settings......................................................................................................... 188
2.4.13 HSDPA Settings..........................................................................................................202
2.4.14 HSUPA Settings..........................................................................................................210
2.4.15 CPC Settings...............................................................................................................222
2.4.16 UE Measurement Report Settings.............................................................................. 227
2.4.17 Compressed Mode......................................................................................................229
2.4.18 Messaging (SMS) Parameters.................................................................................... 231
2.4.19 Messaging (CBS) Parameters.................................................................................... 234
2.4.20 Shortcut Configuration................................................................................................ 238
2.4.21 Message Monitoring Settings......................................................................................239
2.4.22 BER Measurement Configuration............................................................................... 239
2.4.23 HSDPA ACK Measurement Configuration.................................................................. 244
2.4.24 E-HICH Measurement Configuration.......................................................................... 247
2.4.25 RLC Throughput Measurement Configuration............................................................ 250
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2.4.26 UL Logging Measurement Configuration.................................................................... 253
2.5 Programming.............................................................................................................256
2.5.1 Signaling Application...................................................................................................257
2.5.2 BER Tests................................................................................................................... 280
2.5.3 HSDPA ACK Tests......................................................................................................281
2.5.4 E-HICH Tests.............................................................................................................. 283
2.5.5 RLC Throughput Tests................................................................................................284
2.5.6 UL Logging Tests........................................................................................................ 286
2.6 Command Reference................................................................................................ 287
2.6.1 Conventions and General Information........................................................................ 287
2.6.2 General Settings......................................................................................................... 291
2.6.3 Connection Control and States................................................................................... 292
2.6.4 Signaling Information.................................................................................................. 298
2.6.5 Routing Settings..........................................................................................................327
2.6.6 Internal Fading............................................................................................................ 355
2.6.7 Physical Channel Downlink Settings...........................................................................361
2.6.8 Physical Channel Uplink Settings............................................................................... 378
2.6.9 Connection Configuration............................................................................................396
2.6.10 Network Settings......................................................................................................... 408
2.6.11 HSDPA Settings..........................................................................................................429
2.6.12 HSUPA Settings..........................................................................................................444
2.6.13 Continuous Packet Connectivity................................................................................. 460
2.6.14 UE Measurement Report Settings.............................................................................. 468
2.6.15 Compressed Mode Settings........................................................................................471
2.6.16 Messaging (SMS)........................................................................................................475
2.6.17 Cell Broadcast Service Settings..................................................................................479
2.6.18 Message Monitoring Settings......................................................................................486
2.6.19 Using the WCDMA Wizard..........................................................................................486
2.6.20 BER Measurement......................................................................................................487
2.6.21 HSDPA ACK Measurement........................................................................................ 494
2.6.22 RLC Throughput Measurement...................................................................................504
2.6.23 E-HICH Measurement.................................................................................................510
2.6.24 UL Logging Measurement...........................................................................................519
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2.7 List of Commands.....................................................................................................535
3WCDMA Multi Evaluation Measurement.......................................... 547
3.1 What's New in this Revision.....................................................................................547
3.2 General Description.................................................................................................. 548
3.2.1 WCDMA TX Tests.......................................................................................................548
3.2.2 WCDMA RX Tests...................................................................................................... 551
3.2.3 Multi Evaluation List Mode.......................................................................................... 553
3.2.4 WCDMA UL Signal Properties.................................................................................... 556
3.2.5 Limit Settings and Conformance Requirements..........................................................560
3.2.6 Measurement Results................................................................................................. 569
3.3 GUI Reference........................................................................................................... 584
3.3.1 Measurement Control..................................................................................................584
3.3.2 Parameters and Settings.............................................................................................585
3.3.3 Measurement Results................................................................................................. 602
3.4 Programming.............................................................................................................605
3.4.1 General Examples.......................................................................................................606
3.4.2 Using WCDMA List Mode........................................................................................... 612
3.5 Command Reference................................................................................................ 615
3.5.1 Conventions and General Information........................................................................ 615
3.5.2 General Measurement Settings.................................................................................. 619
3.5.3 Multi Evaluation Measurement Commands................................................................ 632
3.5.4 Combined Signal Path Commands............................................................................. 755
3.6 List of Commands.....................................................................................................757
4WCDMA TPC Measurement...............................................................770
4.1 What's New in this Revision.....................................................................................770
4.2 General Description.................................................................................................. 771
4.2.1 Test Setup...................................................................................................................771
4.2.2 How to Perform a Measurement................................................................................. 772
4.2.3 Parallel Signaling and Measurement.......................................................................... 773
4.2.4 Trigger Modes............................................................................................................. 774
4.2.5 TPC Setups.................................................................................................................775
4.2.6 Limit Settings and Conformance Requirements..........................................................780
4.2.7 Measurement Results................................................................................................. 785
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4.3 GUI Reference........................................................................................................... 793
4.3.1 Measurement Control..................................................................................................794
4.3.2 Parameters and Settings.............................................................................................794
4.3.3 Measurement Results................................................................................................. 804
4.4 Programming.............................................................................................................805
4.4.1 Measurements with Standalone Scenario...................................................................806
4.4.2 Measurements with Combined Signal Path Scenario................................................. 809
4.5 Command Reference................................................................................................ 813
4.5.1 Conventions and General Information........................................................................ 813
4.5.2 General Measurement Settings.................................................................................. 817
4.5.3 TPC Measurement Commands...................................................................................817
4.5.4 Combined Signal Path Commands............................................................................. 844
4.6 List of Commands.....................................................................................................845
5WCDMA PRACH Measurement......................................................... 848
5.1 What's New in this Revision.....................................................................................848
5.2 General Description.................................................................................................. 848
5.2.1 Test Setup...................................................................................................................848
5.2.2 How to Perform a Measurement................................................................................. 849
5.2.3 Defining the Scope of the Measurement.....................................................................850
5.2.4 Parallel Signaling and Measurement.......................................................................... 850
5.2.5 Trigger Modes............................................................................................................. 851
5.2.6 Limit Settings and Conformance Requirements..........................................................851
5.2.7 Measurement Results................................................................................................. 854
5.3 GUI Reference........................................................................................................... 860
5.3.1 Measurement Control..................................................................................................860
5.3.2 Parameters and Settings.............................................................................................861
5.3.3 Measurement Results................................................................................................. 868
5.4 Programming.............................................................................................................869
5.4.1 Key Features...............................................................................................................869
5.4.2 Specifying General and Common Measurement Settings.......................................... 869
5.4.3 Specifying Required PRACH Settings........................................................................ 870
5.4.4 Specifying Additional Measurement-Specific Settings................................................ 870
5.4.5 Configuring the Trigger System.................................................................................. 870
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5.4.6 Specifying Limits......................................................................................................... 871
5.4.7 Performing Measurements..........................................................................................871
5.5 Command Reference................................................................................................ 872
5.5.1 Conventions and General Information........................................................................ 872
5.5.2 General Measurement Settings.................................................................................. 876
5.5.3 PRACH Measurement Commands............................................................................. 876
5.5.4 Combined Signal Path Commands............................................................................. 900
5.6 List of Commands.....................................................................................................901
6WCDMA Generator.............................................................................903
6.1 What's New in this Revision.....................................................................................903
6.2 General Description.................................................................................................. 903
6.2.1 Physical Channel Overview........................................................................................ 904
6.2.2 Channel Structure....................................................................................................... 908
6.2.3 Dedicated Channel Models......................................................................................... 914
6.2.4 Orthogonal Channel Noise Simulator (OCNS)............................................................917
6.2.5 Power Levels...............................................................................................................918
6.2.6 Operating Bands......................................................................................................... 919
6.2.7 Trigger Signals............................................................................................................ 920
6.2.8 Transmit Power Control (TPC)....................................................................................921
6.3 GUI Reference........................................................................................................... 928
6.3.1 Generator Control....................................................................................................... 928
6.3.2 General Generator Settings........................................................................................ 929
6.3.3 Physical Channel Settings.......................................................................................... 931
6.3.4 CDP Diagram.............................................................................................................. 934
6.3.5 Transport Channel Settings........................................................................................ 936
6.3.6 DPCCH Settings......................................................................................................... 937
6.3.7 HSDPA Settings (Option R&S CMW-KG401)............................................................. 940
6.3.8 HSUPA Settings (Option R&S CMW-KG401)............................................................. 941
6.4 Programming.............................................................................................................943
6.4.1 Key Features...............................................................................................................943
6.4.2 Specifying General Generator Settings.......................................................................944
6.4.3 Specifying Channel Table Entries............................................................................... 944
6.4.4 Specifying OCNS Settings.......................................................................................... 945
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6.4.5 Specifying DCH and DPCCH Settings........................................................................ 945
6.4.6 Specifying HSDPA Settings........................................................................................ 946
6.4.7 Specifying HSUPA Settings........................................................................................ 946
6.4.8 Switching on the Generator.........................................................................................947
6.5 Command Reference................................................................................................ 947
6.5.1 Generator Control and States..................................................................................... 948
6.5.2 Signal Routing.............................................................................................................948
6.5.3 General Generator Settings........................................................................................ 950
6.5.4 Power Levels (Physical Channels)..............................................................................953
6.5.5 Code Numbers (Physical Channels)........................................................................... 956
6.5.6 Symbol Rates (Physical Channels).............................................................................960
6.5.7 Slot Format (Physical Channels).................................................................................964
6.5.8 Timing Offsets (Physical Channels)............................................................................ 964
6.5.9 Data (Physical Channels)............................................................................................965
6.5.10 OCNS Channels..........................................................................................................966
6.5.11 Transport Channel Settings........................................................................................ 967
6.5.12 DPCCH Settings......................................................................................................... 969
6.5.13 HSDPA Settings..........................................................................................................974
6.5.14 HSUPA Settings..........................................................................................................976
6.6 List of Commands.....................................................................................................979
Index....................................................................................................982
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Contents
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Preface
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1 Preface
The operation of the R&S CMW is described in several user manuals:
●The R&S CMW user manual describes the base software, common features of the
firmware applications and basic principles for manual operation and remote control.
●Additional user manuals, like this document, describe the firmware applications.
Rohde & Schwarz provides registered users a "CMW Customer Web" section on
GLORIS, the Global Rohde & Schwarz Information System: https://extranet.rohde-
schwarz.com. From this resource you can download software updates, waveform
library updates and documentation updates, e.g. updates of this document.
1.1 How to Read Firmware Application Chapters
Each firmware application is described in a separate chapter. These chapters can be
read independently of each other. However, they are all organized as follows:
1. General Description
2. Application Sheets (optional)
3. GUI Reference
4. Programming Examples
5. Command Reference
The chapters "System Overview" and "Remote Control" in the R&S CMW user manual
provide additional important information independent of the individual firmware applica-
tions. The most important parts are referenced by the firmware application descrip-
tions.
1.1.1 General Description
This section provides a general description of the firmware application, independent of
a specific operation mode (manual or remote control). It gives a high-level introduction
to the capabilities of the firmware application. Background information related to the
network standard is given as far as it is directly related to administrable parameters.
For measurement applications a detailed description of measurement results and a
description of configurable limits is given, including the relation to conformance require-
ments defined in network standard specifications.
How to Read Firmware Application Chapters
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Preface
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1.1.2 Application Sheets
This optional section provides short application examples for select issues and related
background information.
1.1.3 GUI Reference
The GUI reference describes the manual operation of the firmware application via the
Graphical User Interface (GUI).
The description of a configuration dialog usually starts with a screenshot presenting the
preset values of the parameters (sometimes preset values are modified to enable hid-
den parts of a dialog). Below the screenshot all shown parameters are described. For
each single parameter a link to the corresponding command description in the "Com-
mand Reference" is provided. Ranges for numeric parameters and reset values are
given there.
For measurement results links to the corresponding command descriptions are provi-
ded (commands to retrieve the results). The measurement results are described in
detail in the "General Description".
1.1.4 Programming Examples
The programming examples show how to control and configure the firmware applica-
tion via a remote-control program and how to retrieve measurement results. The exam-
ples consist of comprehensive command sequences. You can check just a single com-
mand of a sequence to get an example for the syntax of this single command. But you
can also consider an entire sequence showing the commands in the context of a com-
mand script, under consideration of dependencies and required orders of the com-
mands.
The command sequences are written with the intention to list most commands of the
firmware application. They do not show the fastest way for a given configuration task.
The fastest way would use many reset values and omit the corresponding commands.
The examples are referenced by the command descriptions of the "Command Refer-
ence".
1.1.5 Command Reference
The command reference provides information on the remote commands of the firm-
ware application. The commands are grouped according to their function.
Each command description indicates the syntax of the command header and of the
parameters. For input parameters the allowed ranges, reset values and default units
are listed, for returned values the expected ranges and default units. Most commands
have a command form and a query form. Exceptions are marked by "Setting only",
"Query only" or "Event". Furthermore a link to the "Programming Examples" is provided
and the first software version supporting the command is indicated.
How to Read Firmware Application Chapters
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WCDMA Signaling
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2 WCDMA Signaling
The "WCDMA signaling" firmware application (option R&S CMW-KS400) allows to
emulate a UTRAN cell and to communicate with the UE under test. The UE can syn-
chronize to the DL signal, register to the Circuit Switched (CS) domain and attach to
the Packet Switched (PS) domain. A mobile originating or mobile terminating connec-
tion can be set up.
In addition to the signaling mode, a reduced signaling mode is supported. It allows to
set up a connection without registration, attach and layer 3 signaling. Thus modules
only supporting layer 1 and 2 can be tested.
The basic R99 signaling functionality provided by R&S CMW-KS400 can be enhanced
by the following options:
●R&S CMW-KS410: advanced parameter settings for R99
●R&S CMW-KS401: basic signaling for R5/6, e.g. setup of an HSPA test mode con-
nection
●R&S CMW-KS411: advanced parameter settings for R5/6, e.g. flexible user
defined HSDPA configuration
●R&S CMW-KS403: basic signaling for R7, e.g. connection with 64-QAM modulation
(HSPA+)
●R&S CMW-KS413: advanced parameter settings for R7, e.g. CPC feature
●R&S CMW-KS404: basic signaling for R8, e.g. dual carrier HSDPA+
●R&S CMW-KS405: basic signaling for R9, e.g. dual band HSDPA+ or dual carrier
HSUPA
●R&S CMW-KS425 allows to use the not standardized S and L operating bands.
●R&S CMW-KE100 and R&S CMW-KE400 enable internal fading (R&S CMW-
KS410 and fader I/Q board also required).
●R&S CMW-KS170 is required for the Commercial Mobile Alerting System (CMAS)
solution.
Most tests can be performed using the WCDMA "Multi Evaluation" measurement, the
"TPC" measurement or the "PRACH" measurement (all included in option R&S CMW-
KM400). Data transfer tests can be performed using the Data Application Unit (DAU,
option R&S CMW-B450x and R&S CMW-KM050).
Additional measurements are provided by the "WCDMA signaling" application. For
details refer to:
●BER Measurement
●HSDPA ACK Measurement
●RLC Throughput Measurement
●E-HICH Measurement
●UL Logging Measurement
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WCDMA Signaling
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2.1 What's New in this Revision
This revision describes version 3.2.70 and later of the WCDMA signaling application.
Compared to version 3.2.60 it provides the following new features:
●Extension of voice connections involving audio measurements application:
–for description see Audio Measurements
– for setting, see Voice Connection Settings
– for enabling, see Enable Speech Codec
●SMS extensions as binary SMS and large SMS handling, see Outgoing SMS
●Additional reselection parameters Qrxlevmin E-UTRA and time hysteresis, see Cell
Reselection
●Operating band XXV, see Operating Band, Channel, Frequency, Offset, UL/DL
Separation
●Display of additional UE capabilities:
–General UE Capabilities
–HSDPA UE Capabilities
–RF UE Capabilities
–Positioning UE Capabilities
–IMS Voice
●HSUPA extensions:
– E-DPCCH power boosting, see HSUPA
– Flexible RLC PDU size, see RLC PDU Size
– Modulation setting for HSUPA connections, see Modulation
– E-AGCH table index, see E-AGCH Table Index
●Parameters codec, NB AMR and WB AMR now configurable also during the call,
see Voice Connection Settings
●DL/UL alignment indication per carrier, see Connection Status
●Adaptation of the target and current E-TFCI settings to dual uplink carrier, see:
CONFigure:WCDMa:SIGN<i>:UL:TPC:MPEDch:STATe?
●Additional command for gain factor settings, see CONFigure:WCDMa:SIGN<i>:
UL:GFACtor:PDATa<no>
●RLC throughput measurement settings "Update Interval" and "Windows Size" now
possible also in unit subframe, see Measurement Control Settings
Software Version
To check your R&S CMW software version, open the "Setup" dialog and click "HW/SW
Equipment". The initial software version for each remote control command is quoted in
the reference description.
What's New in this Revision
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WCDMA Signaling
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2.2 General Description
The following sections describe how to use the R&S CMW for WCDMA signaling tests
and provide background information.
●Test Setups.............................................................................................................15
●Initiating Signaling Tests......................................................................................... 19
●Reduced Signaling Mode........................................................................................20
●End to End Packet Data Connections.....................................................................23
●Audio Measurements.............................................................................................. 23
●External Fading.......................................................................................................25
●Internal Fading........................................................................................................ 26
●Connection States...................................................................................................27
●Handover.................................................................................................................33
●Physical DL Channels.............................................................................................35
●Connection Types................................................................................................... 42
●Operating Bands..................................................................................................... 49
●Trigger Signals........................................................................................................52
●Transmit Power Control (TPC)................................................................................54
●Random Access Procedure.................................................................................... 62
●Continuous Packet Connectivity (CPC).................................................................. 63
●WCDMA Wizards.................................................................................................... 65
●BER Measurement..................................................................................................68
●HSDPA ACK Measurement.................................................................................... 73
●E-HICH Measurement.............................................................................................77
●RLC Throughput Measurement...............................................................................80
●UL Logging Measurement.......................................................................................82
2.2.1 Test Setups
The following sections provide an overview of typical test setups for the individual sce-
narios.
2.2.1.1 Test Setup for Standard Cell Scenario
The basic test setup for a standard cell scenario uses a bidirectional RF connection
between the tester and the device under test (DUT), carrying both the downlink and the
uplink signal:
●The R&S CMW transmits the downlink signal to which the DUT can synchronize in
order to perform an attach. The downlink signal is used to transfer signaling mes-
sages and user data to the DUT.
●The DUT transmits an uplink signal that the R&S CMW can receive and decode in
order to set up a connection and perform various measurements.
For this setup the DUT is connected to one of the bidirectional RF COM connectors at
the front panel of the R&S CMW. No additional cabling and no external trigger is nee-
ded. The input level ranges of all RF COM connectors are identical.
See also: "RF Connectors" in the R&S CMW user manual, chapter "Getting Started"
General Description
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WCDMA Signaling
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Fig. 2-1: Test setup for standard cell
2.2.1.2 Test Setup for Dual Carrier HSDPA Scenarios
A test setup for a connection with dual carrier HSDPA involves one uplink and two
downlink signals. The two downlink signals must be transmitted via different TX mod-
ules, which implies that the instrument must support at least two TX paths.
Depending on the instrument hardware and the UE connectors, you can use one or
two connectors at the R&S CMW and the UE. Many UEs provide several connectors,
but only one of them can be used for WCDMA.
Typical scenarios:
●The UE provides only one connector for WCDMA; basic frontends are installed at
the R&S CMW:
Use a bidirectional RF connector for the uplink and one downlink signal and a sep-
arate RF connector for the second downlink signal. Connect both RF connectors to
an external combiner and connect the combiner to the UE.
●The UE provides only one connector for WCDMA; an advanced frontend is instal-
led at the R&S CMW:
Use one bidirectional RF connector for the uplink and both downlink signals. This is
the same cabling as for a standard cell scenario.
●Connection via two cables, using two connectors at both sides (UE provides two
connectors for WCDMA):
Use a bidirectional connector for the uplink and one downlink signal and an addi-
tional connector for the second downlink signal.
The following figure illustrates this example.
Fig. 2-2: Test setup using two connectors at instrument side and UE side
2.2.1.3 Test Setup for Dual Carrier HSPA Scenario
A test setup for a connection with dual carrier HSPA involves two uplink and two down-
link signals. The two downlink/uplink signals must be transmitted via two different
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TX/RX modules at different Signaling Units Wideband (SUWs). This implies that the
instrument must be equipped with two SUWs.
Many UEs provide several connectors, but only one of them can be used for WCDMA.
Typical scenarios:
●The UE provides only one connector for WCDMA:
Use a bidirectional RF connector at one SUW for the first uplink and downlink sig-
nal and a separate bidirectional RF connector at another SUW for the second
uplink and downlink signal. Connect both RF connectors to an external combiner
and connect the combiner to the UE.
●The UE provides two connectors for WCDMA:
Use a bidirectional connector at one SUW for the first uplink and downlink signal
and a separate bidirectional connector at another SUW for the second uplink and
downlink signal.
The following figure illustrates this example.
Fig. 2-3: Test setup using two connectors at instrument side and UE side
2.2.1.4 Test Setup for External Fading Scenarios
In order to superimpose fading on the baseband signal, you can integrate an R&S
AMU200A into a test setup. The R&S AMU200A must be connected to the digital I/Q
interface of the R&S CMW. At least one I/Q board must be installed at the R&S CMW
for that purpose (option R&S CMW-B510x/-B520x).
All connections between R&S CMW and R&S AMU200A are established via the rear
panels of the instruments.
The following figure shows a setup with two downlink paths using the first I/Q board
(DIG IQ 1 to 4).
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For a setup with only one downlink path you need only two of the four I/Q data connec-
tions.
The RF connections between R&S CMW and DUT must be established in the same
way as without external fading.
2.2.1.5 Test Setup for Internal Fading Scenarios
If internal fading shall be used, the test setup is the same as for the corresponding sce-
nario without fading.
2.2.1.6 Test Setup for RX Diversity Scenarios
If internal fading shall be used, the test setup is the same as for the corresponding sce-
nario without RX diversity.
If external fader shall be used (e.g. AMU200A), use the test setup for external fading.
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2.2.2 Initiating Signaling Tests
The signal generator of the "WCDMA signaling" application is controlled like any real-
time signal generator, see chapter 2.4.2, "Signaling and Connection Control",
on page 134.
The WCDMA downlink signal is turned on as long as the "WCDMA-UE Signaling" soft-
key indicates the "ON" state (after switching on, wait until the hour glass symbol has
disappeared). When DL signal transmission has been turned on, the connection states
can be controlled via hotkeys at the R&S CMW and via actions at the UE.
The default settings of the R&S CMW generally ensure a DL signal with suitable char-
acteristics for connection setup. The most important settings can be modified directly in
the main view.
Checks in case of failed registration or attach
If the registration of the UE fails, check the demodulation info (see "CMW Demod. Info"
on page 111) and the following R&S CMW settings:
●Reduced signaling must be disabled.
●The "Frequency" of the generated DL signal must be within the frequency bands
supported by the UE.
●The "Expected Nominal Power" must be in accordance with the uplink signal
power.
●The "Output Power" must be sufficient so that the UE under test can receive the DL
signal.
●The PRACH settings must allow a positive answer to received preambles:
– Enhanced AICH settings: "Acknowledge" = "Positive"
–PRACH settings: "Preambles before AICH Transmission" ≤ "Preamble maxi-
mum Retransmission"
●The UE capabilities must be in accordance with the security settings in the "Net-
work" section of the configuration dialog.
Registration can fail if authentication or security is disabled but the UE expects/
requires an authentication or security procedure. It can also fail if authentication or
security is enabled but not supported by the UE or the SIM card type or secret key
do not match.
An appropriate 3GPP USIM can be obtained from Rohde & Schwarz (R&S CMW-
Z04, stock no. 1207.9901.02).
●If operating band VI is used, the "MCC" should be set to a value between 440 and
443. Otherwise a Release 5 UE (or lower) may fail to register in band VI. For refer-
ence see 3GPP TS 25.307 up to Release 5, section 6.1.2.
Performing measurements
The required settings vary depending on the measurement to be performed. However,
the general procedure outlined below is applicable to most measurements performed
without reduced signaling and without data application unit (no end to end connection).
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For a detailed example of a connection setup see chapter 2.3.1.2, "Setting up a Con-
nection", on page 86.
1. Connect your UE to the R&S CMW (see Test Setups).
2. Open the "WCDMA signaling" firmware application.
3. Configure the signaling application according to the test to be performed. For TX
measurements it is recommended to disable measurement reporting.
4. To turn on the DL signal, click/press "ON | OFF" and wait until the "WCDMA-UE
Signaling" softkey indicates the "ON" state and the hour glass symbol has disap-
peared.
5. Switch on the UE.
The UE synchronizes to the DL signal and registers (attaches). Note the connec-
tion states displayed in the main view.
6. Set up a UE originated or UE terminated connection.
7. Use the "WCDMA RX Meas" or "WCDMA TX Meas" softkey to switch to the mea-
surement application. The WCDMA RX measurements are provided by the
"WCDMA Signaling" firmware application. The WCDMA TX measurements are
available as option R&S CMW-KM400.
8. Configure and start the measurement.
Order of steps
Measurements provided by the signaling application can also be initiated before turn-
ing on the DL signal. In that case the measurement starts as soon as the preconditions
for the measurement are fulfilled. A BER measurement for instance starts when a suit-
able RMC connection has been set up.
2.2.3 Reduced Signaling Mode
In the default mode (no reduced signaling) the "WCDMA signaling" application emu-
lates a UTRAN cell and generates a downlink WCDMA signal. The UE can synchron-
ize to the downlink signal, register to the Circuit Switched (CS) domain and attach to
the Packet Switched (PS) domain. After registration/attach you can set up a connec-
tion.
In the reduced signaling mode, the R&S CMW also provides a WCDMA downlink sig-
nal, but it does not transfer layer 3 messages. There is no dialog between instrument
and UE. No registration or attach procedure is performed and no call connection is set
up, so that test times are reduced considerably. Only test mode connections are possi-
ble.
To use the reduced signaling mode ensure that the UE synchronizes to the received
downlink signal and transmits an uplink WCDMA signal with correct timing relative to
the downlink signal (1024 chips offset between DL DPCH and UL DPCH). The signal
must contain all channels usually present during an established connection. Configure
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深圳德标仪器 135-1095-0799