Ronde & Schwarz R&S ViCom User Manual

Interface for r&s tsm instruments

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R&S

ViCom

Interface for R&S TSM Instruments

User Manual

(?5=MZ)

1505.1329.42 ─ 28

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Page 1 ® R&S ViCom Interface for R&S TSM Instruments User Manual (?5=MZ) 1505.1329.42 ─ 28...
Page 2 This manual describes the R&S®ViCom version 15.65. The software contained in this product makes use of several valuable open source software packages. For information, see the "Open Source Acknowledgment" on the user documentation CD-ROM (included in delivery). Rohde & Schwarz would like to thank the open source community for their valuable contribution to embedded computing. ©...
Page 3 Basic Safety Instructions Always read through and comply with the following safety instructions! All plants and locations of the Rohde & Schwarz group of companies make every effort to keep the safety standards of our products up to date and to offer our customers the highest possible degree of safety. Our products and the auxiliary equipment they require are designed, built and tested in accordance with the safety standards that apply in each case.
Page 4 Basic Safety Instructions Symbol Meaning Symbol Meaning Caution ! Hot surface Alternating current (AC) Protective conductor terminal Direct/alternating current (DC/AC) To identify any terminal which is intended for connection to an external conductor for protection against electric shock in case of a fault, or the terminal of a protective earth Earth (Ground) Class II Equipment...
Page 5 Basic Safety Instructions Operating states and operating positions The product may be operated only under the operating conditions and in the positions specified by the manufacturer, without the product's ventilation being obstructed. If the manufacturer's specifications are not observed, this can result in electric shock, fire and/or serious personal injury or death. Applicable local or national safety regulations and rules for the prevention of accidents must be observed in all work performed.
Page 6 Basic Safety Instructions 6. The product may be operated only from TN/TT supply networks fuse-protected with max. 16 A (higher fuse only after consulting with the Rohde & Schwarz group of companies). 7. Do not insert the plug into sockets that are dusty or dirty. Insert the plug firmly and all the way into the socket provided for this purpose.
Page 7 Basic Safety Instructions 2. Before you move or transport the product, read and observe the section titled "Transport". 3. As with all industrially manufactured goods, the use of substances that induce an allergic reaction (allergens) such as nickel cannot be generally excluded. If you develop an allergic reaction (such as a skin rash, frequent sneezing, red eyes or respiratory difficulties) when using a Rohde &...
Page 8 Basic Safety Instructions 2. Adjustments, replacement of parts, maintenance and repair may be performed only by electrical experts authorized by Rohde & Schwarz. Only original parts may be used for replacing parts relevant to safety (e.g. power switches, power transformers, fuses). A safety test must always be performed after parts relevant to safety have been replaced (visual inspection, protective conductor test, insulation resistance measurement, leakage current measurement, functional test).
Page 9 Instrucciones de seguridad elementales Waste disposal/Environmental protection 1. Specially marked equipment has a battery or accumulator that must not be disposed of with unsorted municipal waste, but must be collected separately. It may only be disposed of at a suitable collection point or via a Rohde &...
Page 10 Instrucciones de seguridad elementales Se parte del uso correcto del producto para los fines definidos si el producto es utilizado conforme a las indicaciones de la correspondiente documentación del producto y dentro del margen de rendimiento definido (ver hoja de datos, documentación, informaciones de seguridad que siguen). El uso del producto hace necesarios conocimientos técnicos y ciertos conocimientos del idioma inglés.
Page 11 Instrucciones de seguridad elementales Símbolo Significado Símbolo Significado Aviso: Cuidado en el manejo de dispositivos Distintivo de la UE para la eliminación por sensibles a la electrostática (ESD) separado de dispositivos eléctricos y electrónicos Más información en la sección "Eliminación/protección del medio ambiente", punto 2.
Page 12 Instrucciones de seguridad elementales 1. Si no se convino de otra manera, es para los productos Rohde & Schwarz válido lo que sigue: como posición de funcionamiento se define por principio la posición con el suelo de la caja para abajo, modo de protección IP 2X, uso solamente en estancias interiores, utilización hasta 2000 m sobre el nivel del mar, transporte hasta 4500 m sobre el nivel del mar.
Page 13 Instrucciones de seguridad elementales 6. Solamente está permitido el funcionamiento en redes de alimentación TN/TT aseguradas con fusibles de 16 A como máximo (utilización de fusibles de mayor amperaje solo previa consulta con el grupo de empresas Rohde & Schwarz). 7.
Page 14 Instrucciones de seguridad elementales Funcionamiento 1. El uso del producto requiere instrucciones especiales y una alta concentración durante el manejo. Debe asegurarse que las personas que manejen el producto estén a la altura de los requerimientos necesarios en cuanto a aptitudes físicas, psíquicas y emocionales, ya que de otra manera no se pueden excluir lesiones o daños de objetos.
Page 15 Instrucciones de seguridad elementales Reparación y mantenimiento 1. El producto solamente debe ser abierto por personal especializado con autorización para ello. Antes de manipular el producto o abrirlo, es obligatorio desconectarlo de la tensión de alimentación, para evitar toda posibilidad de choque eléctrico. 2.
Page 16 Instrucciones de seguridad elementales 2. Las asas instaladas en los productos sirven solamente de ayuda para el transporte del producto por personas. Por eso no está permitido utilizar las asas para la sujeción en o sobre medios de transporte como p. ej. grúas, carretillas elevadoras de horquilla, carros etc. Es responsabilidad suya fijar los productos de manera segura a los medios de transporte o elevación.
Page 17 Quality management Certified Quality System ISO 9001 and environmental Certified Environmental System management ISO 14001 Sehr geehrter Kunde, Dear customer, Cher client, Sie haben sich für den Kauf You have decided to buy a Vous avez choisi d’acheter un eines Rohde & Schwarz Produk- Rohde &...
Page 18 Customer Support Technical support – where and when you need it For quick, expert help with any Rohde & Schwarz equipment, contact one of our Customer Support Centers. A team of highly qualified engineers provides telephone support and will work with you to find a solution to your query on any aspect of the operation, programming or applications of Rohde &...
Page 19: Table Of Contents
® Contents R&S ViCom Contents 1 Conventions Used in the Documentation..........13 2 Important Notes..................14 References........................14 Key to Technical Terms....................14 3 General Description................17 Configuration.......................18 3.1.1 Setup an R&S TSM Instrument Connection..............18 3.1.2 R&S ViCom Interface Functions................... 20 R&S TSM Instruments Product Family ..............20 3.2.1 Technology Specific Features..................21 3.2.1.1...
Page 20 ® Contents R&S ViCom 4.4.1 Connectivity........................32 4.4.2 R&S ViCom Known Issues....................33 4.4.3 R&S TSME Diagnosis and Updates................33 4.4.3.1 Obtaining Firmware and Correction Data Updates............34 4.4.3.2 Automatic firmware updates..................35 4.4.4 Getting Started with R&S TSME MIMO Measurements..........35 4.4.4.1 Connectivity........................35 4.4.4.2 R&S TSME Setup for MIMO Operation Mode...............36 4.4.4.3 R&S ViCom Setup for MIMO Operation Mode..............37...
Page 21: It Is Also Possible To Clear The Contents Of The Internal Message Containers Associ- Ated With A Channel And The Bts. Two Commands Are Designed For That Purpose: Demodulate Bts_Reset
® Contents R&S ViCom 5.5.3 Project Settings......................51 5.5.4 Working with the Code....................53 5.5.5 Installation Issues......................54 5.5.6 Updating the Projects....................54 Debugging and Error Handling..................55 5.6.1 Debugging Techniques....................55 5.6.2 Message Handler......................55 5.6.2.1 Error Handling Mechanism....................56 5.6.2.2 Registry......................... 57 6 R&S ViCom WCDMA Technology............58 Measuring of WCDMA Signals...................58 6.1.1...
Page 22: Demodulate Channel_Reset
® Contents R&S ViCom 7.1.2.1 Power Measurement..................... 79 7.1.2.2 SCH Measurement Report Data................... 80 7.1.2.3 Counting SCH Measurement Failures................81 7.1.2.4 Demodulation of BCCH and System Information Type..........81 7.1.2.5 Spectrum Measurement....................82 7.1.2.6 Channel Power Measurement..................85 7.1.2.7 Time-Slot Measurement....................88 7.1.2.8 Removing Dummy Burst Measurements..............91 GSM Measurements Demo Application..............
Page 23: The "Demodulate Bts" And "Demodulate Bts_Force" Commands Have A Sec- Ond Variation. These Modes Are: Demodulate Bts_Old
® Contents R&S ViCom EVDO BCH Demodulation..................111 Measurement Rates....................111 9 R&S ViCom LTE Technology............112 Measuring of LTE Signals..................112 9.1.1 Narrowband Measurements Configuration..............113 9.1.1.1 Receiver Frontend.......................113 9.1.1.2 S-Sync to P-Sync Ratio....................113 9.1.1.3 Reference Signal Measurements................115 9.1.2 Wideband Measurements Configuration..............117 9.1.2.1 Wideband Reference Signal Measurements...............118...
Page 24: Demodulate Bts_Old_Force
® Contents R&S ViCom 10 R&S ViCom WiMAX Technology............159 10.1 Measuring of WiMAX Signals...................159 10.1.1 Configuration.......................160 10.1.1.1 Result Buffer Depth.....................160 10.1.1.2 Channel Settings......................160 10.1.1.3 Demodulation Settings....................160 10.1.2 Measurement Result....................161 10.1.2.1 WiMAX Scan Results....................161 10.1.2.2 WiMAX Demodulation Results..................164 10.1.3 Error Handling......................
Page 25 ® Contents R&S ViCom 11.3.1.3 Step 3: Set parameters....................188 11.3.1.4 Step 4: Start Measurement..................188 11.3.1.5 Step 5: Define Specific Values..................188 11.3.1.6 Step 6: Fetch and View Measurement Results............189 11.3.1.7 Step 7: Stop Measurement..................191 11.3.1.8 Step 8: Unload Receivers................... 191 11.4 RF Power Scan Technology..................191 11.4.1...
Page 26 ® Contents R&S ViCom 13.1.2.2 Time and Distance Triggering..................210 13.1.3 Channel Power Aggregation..................214 13.2 Sample Application....................215 14 R&S ViCom Automatic Channel Detection........219 14.1 General Operation.....................219 14.1.1 Programming.......................219 14.1.2 Simple ACD.........................219 14.1.3 Smart ACD........................220 14.1.4 Performance Requirements..................220 14.1.5 Device Options......................220 14.2...
Page 27 ® Contents R&S ViCom 17.1 Overview of R&S Remote ViCom Architecture............232 17.2 Usage of R&S Remote ViCom Interface..............233 17.3 Example of R&S Remote ViCom Application with R&S TSMA......233 17.3.1 Requirements......................233 17.3.1.1 Requirement for Bluetooth Connection............... 234 17.3.1.2 Requirement for WLAN Connection................234 17.3.2 Connection Establishment..................
Page 28 ® Contents R&S ViCom User Manual 1505.1329.42 ─ 28...
Page 29: Conventions Used In The Documentation
® Conventions Used in the Documentation R&S ViCom 1 Conventions Used in the Documentation The following conventions are used throughout the R&S ViCom Interface Operating Manual: Typographical conventions Convention Description “Graphical user interface elements” All names of graphical user interface elements both on the screen and on the front and rear panels, such as dialog boxes, soft keys, menus, options, buttons etc., are enclosed by quotation marks.
Page 30: Important Notes
® Important Notes R&S ViCom Key to Technical Terms 2 Important Notes In this document, the name R&S TSM Instruments stands for: ● R&S TSMx Family (R&S TSML models, R&S TSMM, R&S TSMQ, R&S TSMU) ● R&S TSMW ● R&S TSME Differences in handling between the R&S TSMW and R&S TSME and the R&S TSMx Family on the another hand are mentioned in the chapters directly.
Page 31 ® Important Notes R&S ViCom Key to Technical Terms Abbreviation Meaning Broadcast Channel. See Reference 4 on CD-ROM Base Transciever Station CDMA Code Division Multiple Access Channel Impulse Response C-PICH See Reference 4 on CD-ROM. Dynamic Linked Library EVDO Evolution Data Optimized E-UTRA Evolved Universal Terrestrial Radio Access Frequency Division Duplex...
Page 32 ® Important Notes R&S ViCom Key to Technical Terms Abbreviation Meaning R&S TSMW High-End Radio Network Analyzer R&S TSMW (Multi Tech) R&S TSMx Family Signifies any of the R&S TSML-W, R&S TSML-C, R&S TSML-G, R&S TSML-CW, R&S TSML-E, R&S TSML-GW, R&S TSMU or R&S TSMQ. Scrambling Code System Information Block SSCH...
Page 33: General Description
® General Description R&S ViCom 3 General Description This document describes the R&S ViCom software interface for R&S TSM Instruments. Using the R&S ViCom interface, developers can easily integrate the R&S TSM Instru- ments into their own Coverage Measurement Software applications as a kind of OEM receiver.
Page 34: Configuration
® General Description R&S ViCom Configuration 3.1 Configuration 3.1.1 Setup an R&S TSM Instrument Connection The hardware configuration is quite straightforward. The control computer is connected to an R&S TSMx Family Receiver with an IEEE1394 (FireWire) connection. A Windows device driver available from Rohde & Schwarz handles communication with the R&S TSMx Family receivers.
Page 35 ® General Description R&S ViCom Configuration Figure 3-3: R&S TSMW Rear Panel The R&S TSME has one frontend with a corresponding antenna connection on the rear panel (RF1), see the following figure. Figure 3-4: R&S TSME Rear Panel The R&S TSMW has the default IP address 192.168.0.2. The R&S TSME is identified similar to the R&S TSMx Family, i.e.
Page 36: R&S Vicom Interface Functions
® General Description R&S ViCom R&S TSM Instruments Product Family 3.1.2 R&S ViCom Interface Functions The R&S ViCom interface includes C++ functions and data structures to control and manage the R&S TSM Instruments. The exact content of the R&S ViCom interface depends upon which model of the R&S TSM Instrument is going to be used by the application.
Page 37: Technology Specific Features
® General Description R&S ViCom R&S TSM Instruments Product Family Device type R&S TSMU R&S TSMQ R&S R&S TSML- R&S TSMW R&S TSME TSML-G TSML-C TSML-W ✓ ✓ ✓ ✓ CDMA / (✓) EVDO ✓ ✓ ✓ ✓ ✓ ✓ ✓...
Page 38: Gsm
® General Description R&S ViCom R&S TSM Instruments Product Family R&S Instruments R&S R&S R&S R&S R&S TSME TSMU TSMQ TSML-W TSMW Max. Number of Channels Max. Measurement Rate in High 12 Hz 12 Hz 10 Hz 12 Hz 80 Hz Dynamic Mode (with BCH Demodula- tion) Max.
Page 39: Wimax
® General Description R&S ViCom R&S TSM Instruments Product Family Due to that there are three different measurement rates. R&S Instruments R&S TSMW R&S TSME Max. Number of Channels Max. Measurement Rate NB (with BCH Demodulation) 200 Hz 330 Hz Max.
Page 40: Getting Started
® Getting Started R&S ViCom What you need 4 Getting Started To get started R&S ViCom you need the Programming Demo application(s) along with the R&S ViCom Interface and R&S TSM Instruments control software. The Program- ming Demo application demonstrates the basic functionality of the R&S ViCom inter- face(s).
Page 41: Synchronizing The R&S Tsm Instruments Internal Clock From An External Source
® Getting Started R&S ViCom What you need 4.1.1.1 Synchronizing the R&S TSM Instruments Internal Clock from an External Source The R&S TSM Instruments have an internal clock. However, the instruments will nor- mally try to synchronize to an external source, to improve the accuracy of measure- ments.
Page 42: Installing The R&S Vicom Interface Dataset And Demo Applications
® Getting Started R&S ViCom What you need The R&S ViCom depends on the Microsoft Visual C++ runtime libraries for Visual Stu- dio 2008 SP1 and Visual Studio 2013. The required redistributable files are located in ...\tools\ vcredist_x86_2013_0.exe. The "R&S ViCom Interface for R&S TSM Instruments" manual and other manuals can be accessed via a shortcut in the Windows start menu "Start >...
Page 43 ® Getting Started R&S ViCom What you need Table 4-1: Common Files Dynamic Libraries Supporting Files Header Files AppSpecificRuSLogFileInter- ELF (Firmware) Files: ViComBasicErrors.h face.dll TSMx_Application.elf ViComBasicInterface.h CMS_IMD.dll tsme_xxxxxxxx.bin ViComBasicInterfaceData.h CMSDecCDMA.dll TsmeBitFileInfo.txt ViComError.h CMSDecGPRS.dll LteMimoScannerRsCinrEstima- ViComLoader.h FFTW.DLL tors.hex ViComDataProcessor.h IMD_Base.dll PEC Files: k1394api.dll TSMUFrames.pec libfftw3-3.dll...
Page 44 ® Getting Started R&S ViCom What you need Table 4-2: R&S ViCom WCDMA Technology related Interface Files Dynamic Libraries Header Files UmtsDemodulator.dll ViComWcdmaErrors.h UmstPnsOption2.dll ViComWcdmaInterface.h ViComWCDMA.dll ViComWcdmaInterfaceData.h ViComWCDMAe.dll ViComWCDMAw.dll Table 4-3: R&S ViCom GSM Technology related Interface Files Dynamic Libraries Header Files GS3Worker.dll ViComGSMErrors.h...
Page 45: Prerequisites
® Getting Started R&S ViCom Prerequisites Table 4-7: R&S ViCom RF Power Scan Technology related Interface Files Dynamic Libraries Header Files ViComRFPOWERSCANe.dll ViComRFScanErrors.h ViComRFPOWERSCANw.dll ViComRFScanInterface.h ViComRFScan.dll ViComRFScanInterfaceData.h ViComRFPowerScanErrors.h ViComRFPowerScanInterface.h ViComRFPowerScanInterfaceData.h Table 4-8: R&S ViCom TD-SCDMA Technology related Interface Files Dynamic Libraries Header Files TDSCdmaDemodulator.dll ViComTdScdmaErrors.h...
Page 46: Diagnostics Information
® Getting Started R&S ViCom Diagnostics Information The R&S TSMW and R&S TSME do not need any special driver to be installed. How- ever, the PC must have a LAN interface to connect the instruments, or the R&S TSMW / R&S TSME is connected using some kind of additional LAN hardware like a switch or a hub.
Page 47: Managing More Than One R&S Tsm Instrument
® Getting Started R&S ViCom Diagnostics Information 4.3.2 Managing more than one R&S TSM Instrument 4.3.2.1 R&S TSMx Family Receivers Up to 3 R&S TSMx Family receivers may be connected in series, via the 2 IEEE 1394 connectors on the rear panel and used to take simultaneous measurements. For example, one instance of the connected R&S Instruments could be used as a GSM network scanner, one as a PN scanner and one as a CW receiver.
Page 48: Getting Started With R&S Tsme
® Getting Started R&S ViCom Getting Started with R&S TSME All instruments included in such connection must have different IP addresses. 4.4 Getting Started with R&S TSME The chapter describes the first steps to do with the R&S TSME and R&S ViCom ver- sion 15.
Page 49: R&S Vicom Known Issues
® Getting Started R&S ViCom Getting Started with R&S TSME You can find the manual in the R&S ViCom package in C:\RuS\ViCom_<version>\doc\TSME User Manual.pdf ● If the R&S TSME does not answer to ICMP echo requests (PING), use the TsmeP- ing tool contained in C:\RuS\ViCom_<version>\tool\TSME to check the con- nectivity ●...
Page 50: Obtaining Firmware And Correction Data Updates
® Getting Started R&S ViCom Getting Started with R&S TSME Figure 4-3: R&S TSME Device Manager window The lower part of the R&S TSME Device Manager window shows the current errors, warnings and info. Figure 4-4: Device analysis output For the complete information on the tool, see the "R&S TSME User Manual". 4.4.3.1 Obtaining Firmware and Correction Data Updates The R&S TSME Device Manager is always provided with the most recent basic FPGA.
Page 51: Automatic Firmware Updates
® Getting Started R&S ViCom Getting Started with R&S TSME ager window. In this case, and only in this case, it is recommended that you install this update on your R&S TSME. The correction data on your R&S TSME should always be kept up-to-date. Available updates are also indicated in the "Device Analysis Output"...
Page 52: R&S Tsme Setup For Mimo Operation Mode
® Getting Started R&S ViCom Getting Started with R&S TSME ● Host computer operates in the 192.168.0.0 sub net having a different IP address than 192.168.0.2 (which is the default address of the R&S TSME) ● Using up to two R&S TSMEs in your application for LTE MIMO 2x2 operation is currently supported ●...
Page 53: R&S Vicom Setup For Mimo Operation Mode
® Getting Started R&S ViCom Getting Started with R&S TSME Figure 4-5: R&S TSME setup for MIMO ● Both receivers need to be connected via sync cable ● Currently the maximum number of supported R&S TSME units for MIMO operation is two ●...
Page 54: Programming With The R&S Vicom Interface
® Programming with the R&S ViCom Interface R&S ViCom Device Details 5 Programming with the R&S ViCom Interface This chapter introduces to the R&S ViCom application-programming interface. In the later part of this chapter, the basic structure that is common to all different technologies is explained.
Page 55: Automatic Load Handling
® Programming with the R&S ViCom Interface R&S ViCom Device Details surements in a second. Additionally, a GSM demodulation is requested during the measurement phase. Figure 5-1: Scheduler Sample The scheduler performs the tasks in a sequence similar to the one depicted in the pre- vious figure.
Page 56: Resource Allocation On The R&S Tsmw
® Programming with the R&S ViCom Interface R&S ViCom Start Programming Prioritization of specific tasks has to be done by controlling the measurement rates, i.e. the user application has to compare the configured measurement rate with the mea- sured measurement rate provided by the receiver and to adapt the settings, if neces- sary.
Page 57: Prerequisites
® Programming with the R&S ViCom Interface R&S ViCom Start Programming The Error and Loader interface functions are used to manage the interface. See the section On Startup for an explanation of how to use these functions. The Basic and Specific interface functions carry out the tasks of setting parameters on the scanner and retrieving measurements.
Page 58: On Startup
® Programming with the R&S ViCom Interface R&S ViCom Start Programming ● Access to the runtime files (libraries, etc.); the interface libraries and other files are found in the sub-directory "bin" 5.2.2 On Startup A typical series of steps is described below, that an application might follow in order to start using the R&S TSM Instrument.
Page 59: Connecting To The R&S Tsmw / R&S Tsme
® Programming with the R&S ViCom Interface R&S ViCom Start Programming Loading the chosen interface takes 20-30 seconds, since the complete FireWire chain is searched for all connected devices. 5.2.2.2 Connecting to the R&S TSMW / R&S TSME The handling is somewhat different when using the R&S TSMW / R&S TSME. The aforementioned loader object has to be created with an additional template parameter.
Page 60: R&S Tsm Instruments Management Functions
® Programming with the R&S ViCom Interface R&S ViCom Start Programming 5.2.3 R&S TSM Instruments Management Functions GetConnectedReceivers() is a basic interface function, available in all R&S ViCom Interfaces, that returns details of all the R&S TSM Instruments connected to the control computer, in the structure SConnectedReceiverTable.
Page 61 ® Programming with the R&S ViCom Interface R&S ViCom Start Programming As the StartMeasurement() is a member of the Basic part of the R&S ViCom inter- face, it must be called via the GetBasicInterface() function. It is useful to get information from the R&S TSM Instrument while it is preparing to take measurements.
Page 62: Connect / Disconnect Scanner
® Programming with the R&S ViCom Interface R&S ViCom Differences between the R&S TSMx Family and R&S TSMW / TSME 5.2.6 Connect / Disconnect Scanner The R&S ViCom loader function Disconnect releases all resources used by R&S ViCom, and resets the R&S TSM Instrument. myViComLoader.Disconnect(myViComError);...
Page 63: Using The Demodulators
® Programming with the R&S ViCom Interface R&S ViCom Using the Demodulators ing the R&S TSME receiver because the receiver index is used to get an IP address from the list of available IP addresses. Figure 5-2: R&S TSMW Settings 5.4 Using the Demodulators Many of the technologies supported by the scanners can additionally demodulate infor- mation sent on specific channels of the underlying RAT.
Page 64: Demodulation Modes
® Programming with the R&S ViCom Interface R&S ViCom Using the Demodulators R&S ViCom uses the GSM term BTS in general to indicate a mobile base station, although there are different terms for different technologies, e.g. NodeB for WCDMA or eNodeB for LTE.
Page 65 ® Programming with the R&S ViCom Interface R&S ViCom Using the Demodulators Figure 5-3: Automatic Repetitive Demodulation For each channel and message type combination that has to be decoded at some time during the measurement one of those three settings has to be specified before the measurement is started.
Page 66: Setting Up A Custom Project
® Programming with the R&S ViCom Interface R&S ViCom Setting up a Custom Project It is similar to the mode described previously, but utilizes more receiver resources, since no probability calculation is done to reduce resource allocation like above. The demodulator then does all it can do to demodulate the result in the given time constraint (if specified).
Page 67: Project Structure
® Programming with the R&S ViCom Interface R&S ViCom Setting up a Custom Project 5.5.1 Project Structure We recommend a standard project structure for your own developments that consists of three folders. One folder holds the source data (it is called “src”), one the header file provided by the API in the “inc”...
Page 68 ® Programming with the R&S ViCom Interface R&S ViCom Setting up a Custom Project make the project run. When the console project is sufficient for your needs, you can skip the rest of the section. The first important part of the project configuration is the default inclusion of the R&s ViCom headers.
Page 69: Working With The Code
® Programming with the R&S ViCom Interface R&S ViCom Setting up a Custom Project 5.5.4 Working with the Code The first steps when setting up a R&S ViCom application is to select which technology you want to use (depending on your scanner, only some parts of the ViCom functional- ity can be used), and include the related header files.
Page 70: Installation Issues
® Programming with the R&S ViCom Interface R&S ViCom Setting up a Custom Project // TODO: start measurement // TODO: stop measurement cLoader.Disconnect( cError ); return 0; Important things to notice are the header files that are included at the very beginning of the file.
Page 71: Debugging And Error Handling
® Programming with the R&S ViCom Interface R&S ViCom Debugging and Error Handling would copy the most-recent files from the top-level installation directory into the project path. This includes the interface headers, binaries and the other stuffs. 5.6 Debugging and Error Handling 5.6.1 Debugging Techniques When debugging an application that utilizes the R&S ViCom API to access one or more devices from an R&S TSM Instrument, some registry keys control the way the...
Page 72: Error Handling Mechanism
® Programming with the R&S ViCom Interface R&S ViCom Debugging and Error Handling This may not be the desired behavior when the R&S ViCom API is used. Usage sce- narios may contain environments were no user feedback is possible or where software components have to run in an unattended way.
Page 73: Registry
® Programming with the R&S ViCom Interface R&S ViCom Debugging and Error Handling return 0; 5.6.2.2 Registry The default error handler DLL that is shipped with the R&S ViCom delivery is called PhylisLowLevelErrorMessageHandler.dll (or PhylisLowLevelErrorMessageHandlerd.dll in debug mode) and can be used to control the behavior using the registry.
Page 74: S Vicom Wcdma Technology
® R&S ViCom WCDMA Technology R&S ViCom Measuring of WCDMA Signals 6 R&S ViCom WCDMA Technology ● Measuring of WCDMA Signals................58 ● Sample Application....................60 ● WCDMA BCH Demodulation.................. 66 6.1 Measuring of WCDMA Signals The R&S TSM Instruments can measure the basic RF parameters of any Node B which is transmitting within a range.
Page 75: Cpich Channel Impulse Response (Cir) Measurements
® R&S ViCom WCDMA Technology R&S ViCom Measuring of WCDMA Signals 6.1.1 CPICH Channel Impulse Response (CIR) Measurements The R&S TSM Instruments return a CIR measurement for each Common Pilot Channel (CPICH) that was found during the measurement time, on the requested frequency. This will include the C-PICHs transmitted by different NodeBs belonging to the same network, in the reception area.
Page 76: Peak Information
® R&S ViCom WCDMA Technology R&S ViCom Sample Application is the interference on the received signal in the given timeslot that cannot be eliminated by the receiver. Together with the spreading factor (SF), these two values can be used to calculate the Signal to Interference Ration (SIR).
Page 77 ® R&S ViCom WCDMA Technology R&S ViCom Sample Application The application and its user interface is rather designed to test the R&S ViCom inter- face functions than to give an example for a measurement application. Therefore, it is possible to call the interface functions at any time from the GUI, and it is possible to set values out of range to check the responses and the behaviour of the measurement in different situations.
Page 78: Setup Connection
® R&S ViCom WCDMA Technology R&S ViCom Sample Application 6.2.1 Setup Connection The first action after starting the sample application, should be to click the "Load PN Scanner" button, highlighted in the figure. Before that, the receiver that shall be used should be chosen, i.e.
Page 79 ® R&S ViCom WCDMA Technology R&S ViCom Sample Application The "Set" buttons correspond to interface functions that set parameters in the scanner. An initial set of default values will appear in the settings fields (circled in ring 3, and the two long fields in the centre of the window).
Page 80: Save And Load
® R&S ViCom WCDMA Technology R&S ViCom Sample Application Another buttons in the previous figure correspond to the interface functions that deal with measurements, and with unloading the scanner. "Start Measurement" starts the scanner measuring. "Get Result Counters" causes displaying the current number of measurement results in the ViCom interface buffer, as well as the number of measure- ments that have been deleted if the buffer has overflowed.
Page 81 ® R&S ViCom WCDMA Technology R&S ViCom Sample Application A sample of an R&S TSM Instruments' measurement file is shown in the following fig- ure. For an explanation of the shown fields, see the R&S ViCom data fields, and the SMeasResult structure.
Page 82: Update Gui With Current Scanner Settings
® R&S ViCom WCDMA Technology R&S ViCom WCDMA BCH Demodulation 6.2.4 Update GUI with Current Scanner Settings The "Request PN-Scanner Settings" button highlighted in the following figure displays all PN Scanner settings which apply at that moment to the scanner. This button can be clicked after starting a measurement, and will display the settings in the appropriate dialogue fields.
Page 83: Measurement Details
® R&S ViCom WCDMA Technology R&S ViCom WCDMA BCH Demodulation This section refers to the general description of the demodulation process in chapter “Using the Demodulators”. Please be sure to read that chapter first before starting with this section. In the following you can find a description of the way how the messages are obtained. It is a technically detailed description of the demodulation process.
Page 84: Demodulation Modes
® R&S ViCom WCDMA Technology R&S ViCom WCDMA BCH Demodulation Once all required information is available, a decoding result is generated and made available to the caller. In the example, after the first 8 frames have been dispatched, SIB 13, 1 and 3 are ready to be demodulated for the Node B with SC 312. To com- pletely decode the SIB 11, some elements are still missing (these are marked as red element).
Page 85: Performance Measurements
® R&S ViCom WCDMA Technology R&S ViCom WCDMA BCH Demodulation Since this handling is sometimes difficult to understand, we recommend not to change the default settings unless you definitely know what the modifications mean. Due to internal architectural reasons, it is required to request the SIB 3 for a channel before other results might be returned.
Page 86 ® R&S ViCom WCDMA Technology R&S ViCom WCDMA BCH Demodulation Table 6-2: Field Measurement Results Ec/I0 [dB] # Attempts # Successful Success Rate Attempts -1..-2 100 % -2..-3 100 % -3..-4 99.4 % -4..-5 99.0 % -5..-6 97.6 % -6..-7 95.6 % -7..-8 93.2 %...
Page 87: Sample Application
® R&S ViCom WCDMA Technology R&S ViCom WCDMA BCH Demodulation 6.3.2 Sample Application In the SampleForViComWcdma.exe application it is possible to experiment with the usage of the WCDMA R&S ViCom API to demodulate the BCCH-BCH channel and decode the demodulated PDUs. A screenshot is shown below. In this section, a complete walk-through is shown to help you getting a first demodula- tion result.
Page 88 ® R&S ViCom WCDMA Technology R&S ViCom WCDMA BCH Demodulation For a simpler editing, it is also possible to add the frequencies only, one per line (a new line is started with Ctrl+Enter). The channel indices will be added automati- cally when "Set Frequencies"...
Page 89 ® R&S ViCom WCDMA Technology R&S ViCom WCDMA BCH Demodulation be decoded from the start, but only after a request; see description in Chap- ter 6.3.2.1, "Issuing a Request during Measurement", on page 74. All channels have configured SIB 3 decoding at least one time. This is necessary to get any result.
Page 90: Issuing A Request During Measurement
® R&S ViCom WCDMA Technology R&S ViCom WCDMA BCH Demodulation Figure 6-6: Sample Result of BCH Demodulation 6.3.2.1 Issuing a Request during Measurement In the example described above, the SIB 1 of the third channel is not included in the result file.
Page 91: Frequently Asked Question
® R&S ViCom WCDMA Technology R&S ViCom WCDMA BCH Demodulation – The fourth column holds the PDU to decode, which must be the same as one of the PDUs defined in the centered list box with demodulation type 1 (ON_CMD) –...
Page 92 ® R&S ViCom WCDMA Technology R&S ViCom WCDMA BCH Demodulation Please check that your configuration allows the reporting of SIB 3 for that channel. You can verify this by checking if a PDU 17 is set either to mode 0 or 2 in the demo application. If not, configure the SIB 3 to be decoded in your start measurement setting.
Page 93: S Vicom Gsm Technology
® R&S ViCom GSM Technology R&S ViCom Measuring of GSM Signals 7 R&S ViCom GSM Technology The R&S ViCom GSM technology measurements offer a whole bunch of measurement methods to monitor and analyze GSM networks. Therefore, high sophisticated algo- rithms have been integrated in the R&S TSM Instruments software. Nevertheless, the API was designed to be as simple as possible.
Page 94: Measurement Scans
® R&S ViCom GSM Technology R&S ViCom Measuring of GSM Signals ● PPS (GPS) ● GSM network | PPs 7.1.1.2 Measurement Scans When the R&S TSM Instrument has measured all channels and gathered the results this is called a scan. One scan always covers the complete band specified by the fre- quencies configured before.
Page 95: Measurement Tasks
® R&S ViCom GSM Technology R&S ViCom Measuring of GSM Signals List of Executed Measurements In some cases, there is no frequency index given directly. For these results, there is a way to match the result data onto the frequencies specified in the ListExecutedMeasSpec structure of the result.
Page 96: Sch Measurement Report Data
® R&S ViCom GSM Technology R&S ViCom Measuring of GSM Signals Power of the SCH When the scanner is synchronised on a channel, it can measure the SCH power (time- slot 0). There are several modes for SCH power measuring, which are also returned in the result.
Page 97: Counting Sch Measurement Failures
® R&S ViCom GSM Technology R&S ViCom Measuring of GSM Signals cially important to start a specific demodulation request of System Information Type messages. Such command can be answered only after the scanner (an R&S TSM Instrument) is successfully synchronized to a BTS. The data can be found in the viCom::GSM::SMeasResult::SSCHInfoResult structure and can directly be used to fill the request structure for a decoding request.
Page 98: Spectrum Measurement
® R&S ViCom GSM Technology R&S ViCom Measuring of GSM Signals ViCom::GSM::SDemodulationSettings cDemodSettings; cDemodSettings.wFrequencyIndex = pcSCHInfoResult->wFrequencyIndex; cDemodSettings.wBSIC = pcSCHInfoResult->wBSIC; cDemodSettings.dwIndicatorOfSCHInfo = pcSCHInfoResult->dwIndicatorOfSCHInfo; cDemodSettings.DemodulationRequestST1.eRequestType = cDemodSettings.DemodulationRequestST2.eRequestType = cDemodSettings. DemodulationRequestST4.eRequestType = CViComGSMNWSInterfaceData:: SDemodulationSettings::SDemodRequest::DEMODREQUEST_DO_NOTHING; cDemodSettings.DemodulationRequestST3.eRequestType = CViComGSMNWSInterfaceData:: SDemodulationSettings::SDemodRequest::DEMODREQUEST_START_REQUEST; cDemodSettings.DemodulationRequestST3.dwDemodulationTimeoutInMs = 10000; cDemodSettings.DemodulationRequestST3.dwRequestIdent = 1; pcGsmScanner->RequestDemodulationOfST1To4( cError, cDemodSettings );...
Page 99 ® R&S ViCom GSM Technology R&S ViCom Measuring of GSM Signals lated for the set of sub-channel peaks. To illustrate that calculation, the figure Spec- trum Calculation shows the combination of 3 FFTs to one single sub-spectrum. Each sub-spectrum is based on a number of FFTs. The number of FFTs is chosen to best-fit into the collection time constraint specified in the spectrum setting.
Page 100 ® R&S ViCom GSM Technology R&S ViCom Measuring of GSM Signals cDetailSettings.SpectrumSpec.eFreqDetector = CViComGSMNWSInterfaceData::SSpectrumSpec::FREQ_DETECTOR_PEAK; cDetailSettings.SpectrumSpec.eTimeDetector = CViComGSMNWSInterfaceData::SSpectrumSpec::TIME_DETECTOR_PEAK; EXEC_VICOM( "Requesting detailed measurements", pcGsmScanner->RedefineMeasurementDetails( cError, cDetailSettings ) ); delete [] cDetailSettings.pTableOfChannelMeasSpec; The spectrum configuration can be changed during the measurement. Each time the spectrum configuration is changed, the new configuration is used for all spectrum mea- surements from then on.
Page 101: Channel Power Measurement
® R&S ViCom GSM Technology R&S ViCom Measuring of GSM Signals Figure 7-4: Spectrum Result Interpretation The sub-spectrums contain the measured channels in the same order as they are given in the structure ListExecutedMeasSpec. That means, the first wCountOfPowerValuesPerSubSpec values in the buffer belong to the first entry in ListExecutedMeasSpec, the second set to the second entry and so on.
Page 102 ® R&S ViCom GSM Technology R&S ViCom Measuring of GSM Signals Figure 7-5: Reduction of used Signal Bandwidth From the remaining input data, the FFT results are grouped to form one power value. One group consists of FFTs falling in a time-interval which is a multiple of 40 nsec. The set of power values calculated from the FTTs is then averaged by a root-mean-square algorithm to get the single power value of a sub-group.
Page 103 ® R&S ViCom GSM Technology R&S ViCom Measuring of GSM Signals Figure 7-6: Channel Power Calculation Scheme The upper part of the figure shows a power sample of one time-slot divided into 5 sub- groups. One interesting aspect shown is that it is not necessary always to use the same amount of data in the average process.
Page 104: Time-Slot Measurement
® R&S ViCom GSM Technology R&S ViCom Measuring of GSM Signals ● Number of sub-groups within a time-slot In this way you can directly control the number of results, since for each measured channel exactly this number of results will be created. In the API, the SChannelPowerSpec structure is used for that purpose and it is a part of the SMeasurementDetails structure.
Page 105 ® R&S ViCom GSM Technology R&S ViCom Measuring of GSM Signals using the time-slot detection task. Therefore, the R&S TSM Instruments software tries to detect many different information streams on the signal and synchronize on the time-slots. If the synchronisation process is successful, the software is able to identify the Training Sequence Code.
Page 106 ® R&S ViCom GSM Technology R&S ViCom Measuring of GSM Signals From the STimeSlotPowerClusterResult, we know the minimum power value and the range. The time-slot power values are given in the value list as a fraction of the power range. This fraction is based on the maximum value of a byte, 255. So the com- plete calculation is as shown above: ●...
Page 107: Removing Dummy Burst Measurements
® R&S ViCom GSM Technology R&S ViCom GSM Measurements Demo Application Figure 7-10: Slot Alignment Probabilities The picture shows the situation, that it is most likely a fill-bit is used and it is placed directly before the first scan. The more different time-slots measured and the more these time-slots have different positions to each other, the better the results will be and the more exactly can the mea- surement report the probabilities.
Page 108: Basic Channel Configuration
® R&S ViCom GSM Technology R&S ViCom GSM Measurements Demo Application CViComGsmInterface class (and their base interface). The order of the buttons implies the logical order in which they should be executed. The middle column provides fields for setting the measurement and technology specific properties.
Page 109: Specifying Measurement Details
® R&S ViCom GSM Technology R&S ViCom GSM Measurements Demo Application ● Put the list of frequencies into the list in the middle column. You don’t have to enter the auto-demodulation settings and frequency index; they are added automatically with default values. A line in the edit control contains up to three elements, each separated by a white space: –...
Page 110 ® R&S ViCom GSM Technology R&S ViCom GSM Measurements Demo Application settings. The behaviour can be defined in the lower part using the different radio but- tons. Figure 7-12: Measurement details dialog Even a subset of the measurement frequencies can be configured. Click the "Press button for individual setup"...
Page 111: Requesting System Information Type
® R&S ViCom GSM Technology R&S ViCom GSM Measurements Demo Application Figure 7-13: Measurement mode specification 7.2.3 Requesting System Information Type Once a measurement has been started, you can request the System Information type 1 to 4 for a specific BTS. Therefore, the lower part of the main dialog offers the appro- priate controls.
Page 112: Gsm Bch Demodulation
® R&S ViCom GSM Technology R&S ViCom GSM BCH Demodulation Figure 7-14: System Info type demodulation request For all requests the channel (identified by its center frequency index), the indicator of the SCH Info (taken from the SCH demodulation result) and the BTSs BSIC have to be given to the network scanner.
Page 113 ® R&S ViCom GSM Technology R&S ViCom GSM BCH Demodulation Figure 7-15: Enhanced Sample Application GSM demodulator In the left list, the configuration is entered to setup an initial configuration of the demod- ulation process that is used when the measurement is started. Four values have to be entered in one line, and each line is one configuration record.
Page 114 ® R&S ViCom GSM Technology R&S ViCom GSM BCH Demodulation You can NOT use the SI Type Demodulation together with the automatic demodulation of System Information Type 1 to 4. The new demodulation algorithm can fully replace the formerly used configuration and provides better performance and more configuration options.
Page 115: S Vicom Cdma / Evdo Technology
® R&S ViCom CDMA / EVDO Technology R&S ViCom Measuring of CDMA 2000 Signals 8 R&S ViCom CDMA / EVDO Technology The R&S ViCom API CDMA / EVDO technology measurements support measuring dif- ferent parameters of a CDMA 2000 / EVDO network. Such parameters are listed below.
Page 116 ® R&S ViCom CDMA / EVDO Technology R&S ViCom Measuring of CDMA 2000 Signals In the result a basestation is identified by the channel index (i.e. the frequency mea- sured) and a so-called indicator. The indicator is simply a counter that is incremented when a (possibly) new basestation is found on a channel.
Page 117: Pn Offset Detection
® R&S ViCom CDMA / EVDO Technology R&S ViCom Measuring of CDMA 2000 Signals Probably identical BTS, since channel and indicator are equal, sec- ond PN Off- set is pre- sumably cor- rect. Identical BTS when PN off- set was demodula- ted, all val- ues are the...
Page 118: Channel Impulse Response
® R&S ViCom CDMA / EVDO Technology R&S ViCom Measuring of CDMA 2000 Signals Figure 8-1: N offset estimation method 8.1.1.3 Channel Impulse Response One operating mode in the CDMA 2000 scanner is to perform CIR measurements on the F-PICH. In that measurement mode, the R&S TSM Instruments attempt to demod- ulate a signal and detect the F-PICH content sent by a basestation on the CDMA chan- nel.
Page 119: F-Sync Demodulation
® R&S ViCom CDMA / EVDO Technology R&S ViCom Measuring of CDMA 2000 Signals Figure 8-2: CIR samples and peaks After that point in time, the code power values are measured every dwCirResolutionInFemtoSeconds femto seconds. The data recorded in that way can be used to search for peaks that signalize impulse data sent on the F-PICH.
Page 120: Time Estimation
® R&S ViCom CDMA / EVDO Technology R&S ViCom Measuring of CDMA 2000 Signals performed successfully, the result is returned in the SSyncChannelDemodulationResult structure. The number of demodulation attempts can be controlled using the etSyncChannelDemodulationMode input parameter. For this value, three possible values can be set, each specifying a different kind of demodulation strategy resulting in a different amount of result data.
Page 121: Configuration
® R&S ViCom CDMA / EVDO Technology R&S ViCom Measuring of CDMA 2000 Signals ● Only Demodulation: In this case, the delay is estimated by the received pilots, where the transmission time is still estimated from the different offsets measured. The delay is calculated.
Page 122: Sample Application For Cdma 2000/Evdo
® R&S ViCom CDMA / EVDO Technology R&S ViCom Sample Application for CDMA 2000/EVDO To perform the calibration, it is important to know the PN offset and the distance to a specific basestation. Such a basestation signal is measured with the R&S TSM Instru- ments, and based on the timing found during that initial measurement the PPS delay can be calculated.
Page 123: Setting The Pn Offsets For Time Estimation
® R&S ViCom CDMA / EVDO Technology R&S ViCom Sample Application for CDMA 2000/EVDO Figure 8-3: R&S ViCom CDMA / EVDO technology demo application Below that element, some CDMA 2000 specific settings can also be specified. These measurement settings are described in the following sections. ●...
Page 124: Sync Channel Demodulation Mode
® R&S ViCom CDMA / EVDO Technology R&S ViCom Sample Application for CDMA 2000/EVDO Pressing the "Set" button before the "Bias"/"Setup", erases the whole content of the manipulations made previously. 8.2.2 Sync Channel Demodulation Mode In this field, you can specify how often an attempt is started to demodulate a probably new incoming signal.
Page 125: Sample Application
® R&S ViCom CDMA / EVDO Technology R&S ViCom Sample Application for CDMA 2000/EVDO 7. Once you have all your data, click the "Stop Measurement" button to stop the mea- surement again. You can then either change the settings (steps 2, 3 and 4) or you can unload the R&S TSM instrument (“Release PN-Scanner”) and quit the applica- tion.
Page 126: Measuring Of Evdo Signals
® R&S ViCom CDMA / EVDO Technology R&S ViCom Measuring of EVDO Signals 8.3 Measuring of EVDO Signals The EVDO measurement capabilities are embedded within the R&S ViCom API CDMA 2000 / EVDO technology measurements. Only a few additional control settings are required in order to do a proper setup of an EVDO measurement.
Page 127: Evdo Bch Demodulation
® R&S ViCom CDMA / EVDO Technology R&S ViCom Measurement Rates full scan of all the EVDO channels specified upfront. The more channels are specified, the less often they will be measured when the same measurement rate is used. Once the settings have been done, the structure can be set in the ViCOM API using the SetEvdoSettings() method of the CViComCdma2000Interface.
Page 128: S Vicom Lte Technology
® R&S ViCom LTE Technology R&S ViCom Measuring of LTE Signals 9 R&S ViCom LTE Technology The 3rd generation network technologies like WCDMA and EVDO are the first step into solely IP based data exchange. The first real network technology that is completely based on the transmission of IP packets is LTE.
Page 129: Narrowband Measurements Configuration
® R&S ViCom LTE Technology R&S ViCom Measuring of LTE Signals ● The MIMO scanner takes Reference Signal measurements over the complete sys- tem bandwidth and provides the MIMO results. In contrast to other interfaces, the configuration mainly concerns the way how the receiver synchronizes to the LTE signal and helps providing a fast synchronization when the apriority knowledge about the signal is available.
Page 130 ® R&S ViCom LTE Technology R&S ViCom Measuring of LTE Signals RatioRange::fLowerRatioInDB/RatioRange:: fUpperRatioInDB of the ViCom::LTE::SFrequencySetting::SSyncToPSyncRatioSettings structure. A range from 0 to -6 dB is allowed. To calculate the value, the following formula can be used: The figure below visualizes shows some calculation examples for simple relations between S-SYNC and P-SYNC power.
Page 131: Reference Signal Measurements
® R&S ViCom LTE Technology R&S ViCom Measuring of LTE Signals S-Sync P-Sync Value [dB] 3.01 -3.01 -6.02 -6.99 9.1.1.3 Reference Signal Measurements RSRP, RSRQ and RS-CINR sub band values can be measured with the LTE module as well. It measures those values on the six innermost resource blocks the scanner finds in a 100ms LTE measurement sample.
Page 132 ® R&S ViCom LTE Technology R&S ViCom Measuring of LTE Signals Figure 9-2: sub-band WB measuremnts The wideband sub-band measurements allow to detect frequency selective interfer- ence in a potential serving cell. Since these measurements are done with a fine granularity (e.g. 100 values per mea- surement cycles in a 20MHz system) they consume more receiver and processing resource, and are therefore intended to be slower and done only on the stronger cells detected by the fast narrowband measurements.
Page 133: Wideband Measurements Configuration
® R&S ViCom LTE Technology R&S ViCom Measuring of LTE Signals Figure 9-3: High Dynamic WB measurements One RS measurement is provided over the complete system bandwidth. This measure- ment can be provided for all cells (dynamic range to -20 dB), while the dynamic range of the sub-band measurements is limited.
Page 134: Wideband Reference Signal Measurements
® R&S ViCom LTE Technology R&S ViCom Measuring of LTE Signals The following use cases can be implemented in a drive test SW, for example as mea- surement modes or templates selectable by the user, depending on the measurements that the user wants to achieve. Usecase Meaning NB only...
Page 135 ® R&S ViCom LTE Technology R&S ViCom Measuring of LTE Signals Bit 0: R0 Bit 1: R1 Bit 2: R2 Bit 3: R3 For example, to measure R0 and R1, bit 0 and bit 1 needs to be set, so decimal 3= bTransmitAntennaSelectionMask.
Page 136: Wideband Rssi Module
® R&S ViCom LTE Technology R&S ViCom Measuring of LTE Signals Typical range: 1dB or lower 9.1.2.2 Wideband RSSI Module Runs on one frontend or both frontends (measurements on two frontends can only be made with R&S TSMW-K30 MIMO option). The RSSI module provides one measurement value per block (2 in TDD mode: UL+ DL).
Page 137: Narrowband Measurement Result
® R&S ViCom LTE Technology R&S ViCom Measuring of LTE Signals The maximum difference (distance) allowed in sub-band RSRP in 0.01 dB (obtained from the narrowband LTE scanner) from the best received eNodeB to enable the mea- surements. Typical: 10dB sMinRsCinrInDB100 The minimum required RS CINR value in 0.01 dB (obtained from the narrowband LTE scanner) for the eNodeB to enable the measurements.
Page 138: General
® R&S ViCom LTE Technology R&S ViCom Measuring of LTE Signals There are up to two different result structures returned in the measurement mode: The channel impulse responses and the power values combined with the related CINR val- ues of the S-SYNC channel. ●...
Page 139: Channel Impulse Responses
® R&S ViCom LTE Technology R&S ViCom Measuring of LTE Signals 9.1.3.2 Channel Impulse Responses The channel impulse responses are always calculated for a 100ms block. The signal processing performed on that timeframe may deliver any combination of the following two results, if the signal is good enough: CIR Peaks From a 100ms S-Sync signal the processing algorithms in the LTE scanner module...
Page 140: Sync Signal Power & Cinr Values
® R&S ViCom LTE Technology R&S ViCom Measuring of LTE Signals 9.1.3.3 SYNC Signal Power & CINR Values Another result lists the power measured for the S- Sync channels in the 100ms signal in ViCom::LTE::SMeasResult::SSignals::SPowerValue. The SYNC signal can be measured in two ways. Servercase If the cell is strong, it will measure every instance of the SYNC signal, which is repea- ted every 5 ms.
Page 141: Reference Signal Measurement
® R&S ViCom LTE Technology R&S ViCom Measuring of LTE Signals ● pfSSyncQualityInDB: Calculated as the ratio of SSYNC Power and SSYNC RSSI Additionally, an amplitude CINR is calculated for each of the two channels, where the phase CINR component is removed from the overall CINR. If the difference between the CINR and the amplitude CINR is high, this indicates a phase-noise problem in the basestation itself, i.e.
Page 142: Wideband Measurement Results
® R&S ViCom LTE Technology R&S ViCom Measuring of LTE Signals 9.1.4 Wideband Measurement Results If any of the wideband scanner modules are active, the returned measurement results include also wideband results. ● Wideband Reference Signal Measurement Results..........126 ● Wideband RSSI Measurement Results..............128 9.1.4.1...
Page 143 ® R&S ViCom LTE Technology R&S ViCom Measuring of LTE Signals Bit 3 Bit 2 Bit 1 Bit 0 Decimal Meaning Single path: Only R0 was used for the measurement Single path: Only R1 was used for the measurement Combination of R0 and R1 was used for the measurement...
Page 144: Wideband Rssi Measurement Results
® R&S ViCom LTE Technology R&S ViCom Measuring of LTE Signals ● WB RSRP (TX2/RX0) [dBm] (e.g. per resource block) ● WB RSRP (TX3/RX0) [dBm] (e.g. per resource block) ● WB RSRP (TX2/RX1) [dBm] (e.g. per resource block) ● WB RSRP (TX3/RX1) [dBm] (e.g. per resource block) In combination with the available RS-CINR measurements per resource block and the spectrum measurement that is delivered by the LTE WB RSSI scanner module, this allows most detailed interference hunting.
Page 145: Mimo Measurement Results
® R&S ViCom LTE Technology R&S ViCom Measuring of LTE Signals Two different RSSI measurements over the complete system bandwidth are provided. ● sRsRssiInDBm100 is a power measurement according to the definition in 3GPP 36.214: Received signal strength indictor (RSSI) using only OFDM symbols that contain reference signals.
Page 146: Throughput Estimation Results
® R&S ViCom LTE Technology R&S ViCom Measuring of LTE Signals 9.1.6 Throughput Estimation Results 9.1.6.1 CQI Measurement Results The Channel Quality Indicator (CQI) references a table of 16 (0-15) Modulation and Coding Schemes (MCS) that the UE can suggest the eNodeB to use, based on the measured channel conditions.
Page 147 ® R&S ViCom LTE Technology R&S ViCom Measuring of LTE Signals Maximum Throughput in Mbps Bandwidth in Resource SISO/SIMO (1Tx) SFBC MIMO Blocks 4.285997 4.092694 8.185388 12.184763 11.691506 23.383013 20.516794 19.690256 39.380513 41.346872 39.687131 79.374263 62.176950 59.684006 119.368013 83.007028 79.680881 159.361763 The actual bandwidth obtained by a UE will be limited based on the UE category.
Page 148: Error Handling
® R&S ViCom LTE Technology R&S ViCom GUI Sample Application 9.1.7 Error Handling The LTE R&S ViCom interface is the first that supports C++ exceptions natively. For every method in the interface (and also in the basic interface) taking a CViComError reference to be filled with potential error messages, there is a counterpart method that will throw a CViComError object in case that a problem arises.
Page 149: Connecting To R&S Tsmw / R&S Tsme
® R&S ViCom LTE Technology R&S ViCom GUI Sample Application Figure 9-6: R&S ViCom LTE technology sample application 9.3.1.1 Connecting to R&S TSMW / R&S TSME 1. Select the receiver type. 2. Define the receiver IP address in the "Address" box if the selected instrument is the R&S TSMW.
Page 150: Configure The R&S Vicom Interface
® R&S ViCom LTE Technology R&S ViCom GUI Sample Application 4. Press the "Load LTE Scanner" button at the upper left corner of the sample appli- cation. The application will try to connect to the R&S TSMW / R&S TSME at the specified IP address and assign the front ends load accordingly.
Page 151 ® R&S ViCom LTE Technology R&S ViCom GUI Sample Application Seq. Label Meaning NB-CINR Narrow-Band RS-CINR Mode. This is a bit flag, please refer to SFrequencySetting::wNarrowban- dRefSignalMeasMode inside “ViComLteInterfaceData.h” for more information. The default value is 67. WB-CINR Wide-Band RS-CINR Mode. Set to ‘1’...
Page 152 ® R&S ViCom LTE Technology R&S ViCom GUI Sample Application Mode (Integer value) Meaning Usage CHANNEL_RESET (6) Delete all demodulation results for all BTS at the specified channel. Restart demodulation for this channel as specified in the com- mand. BTS (3) For a special basestation on one channel, this command tries to decode a defined message.
Page 153 ® R&S ViCom LTE Technology R&S ViCom GUI Sample Application If all the demodulation requests are properly configured, press the "Issue Request" but- ton to issue these demodulation requests while measurement is running, i.e. after the "Start Measurement" button is pressed. Saving/Loading The buttons at the upper right corner are for setting saving/loading (serialization).
Page 154 ® R&S ViCom LTE Technology R&S ViCom GUI Sample Application Figure 9-7: Additional channel settings for single channel Leave the "All Channels" checkbox at the right upper corner of the dialog box unchecked to configure a single channel. In this single channel configuration mode, you can switch among the channels by clicking the big horizontal spin control at the right side of the dialog box, or you can directly input the channel number into the "Channel"...
Page 155: Start Measurement
® R&S ViCom LTE Technology R&S ViCom GUI Sample Application Figure 9-8: Additional channel settings for all channels Select "All Channels" to configure all channels. In this mode, if a specific setting is dif- ferent among the channels, the value will be displayed as blank (for text boxes or combo boxes) or intermediate-checked (for checkboxes), and if you leave these blanks or intermediate-checks unchanged, the dialog will not modify these settings, if you click "OK"...
Page 156: Stop Measurement
® R&S ViCom LTE Technology R&S ViCom Building a LTE TopN View 9.3.1.4 Stop Measurement To end measurement, press the "Stop Measurement" button to stop the measurement and the "Release LTE Scanner" button to destroy the R&S ViCom interface. 9.4 Building a LTE TopN View A TopN view is a sorted list of measurements of all LTE cells that the user wants to scan.
Page 157 ® R&S ViCom LTE Technology R&S ViCom Building a LTE TopN View Measurement Description ViCom Name Part of ViCom struc- ture TD LTE Special sub- The configuration of the pwSpecialSub- ViCom::LTE::SMeasRe- frame configuration special subframe in TD frame6Config sult::SSignals::SReferen- LTE is provided for sub- ceSignal frame 6.
Page 158 ® R&S ViCom LTE Technology R&S ViCom Building a LTE TopN View Measurement Description ViCom Name Part of ViCom struc- ture Narrowband RSRP Gives the RSRP based pNarrowbandRSR- ViCom::LTE::SMeasRe- (TX3) only on R3 based on the PinDBm100 sult::SSignals::SReferen- reference signal power ceSignal bRsCinrMeasResultCon- measurement of the 6...
Page 159 ® R&S ViCom LTE Technology R&S ViCom Building a LTE TopN View Measurement Description ViCom Name Part of ViCom struc- ture NB sub-band RS-CINR Narrowband sub-band pNarrowbandRsCinrVal- ViCom::LTE::SMeasRe- (TX0) [dB] RS-CINR measurements sult::SSignals::SReferen- taken for antenna port 0 ceSignal (2, 3 or 6 values are bRsCinrMeasResultCon- (in 2, 3 or 6 sub-bands of provided)
Page 160 ® R&S ViCom LTE Technology R&S ViCom Building a LTE TopN View Measurement Description ViCom Name Part of ViCom struc- ture SSYNC CINR for serv- CINR of the S-SYNC take fCinrInDB if pdwTi- ViCom::LTE::SMeasRe- ers and interferers signal meFromStartOfBlock- sult::SSignals::SPower- InNs == NULL Value take pfCinrSSyncInDB if...
Page 161 ® R&S ViCom LTE Technology R&S ViCom Building a LTE TopN View Measurement Description ViCom Name Part of ViCom struc- ture CINR of the P-SYNC CINR of the PSS in dB pfAmpBasedCinrPSyn- ViCom::LTE::SMeasRe- based on amplitude based on amplitude cInDB sult::SSignals::SPower- noise noise.
Page 162 ® R&S ViCom LTE Technology R&S ViCom Building a LTE TopN View Measurement Description ViCom Name Part of ViCom struc- ture Delay Spread Maximum time differ- MAX of fDelayInSec of ViCom::LTE::SMeasRe- ence between the first the peak included in the sult::SSig- and the last peak of the nals::SCir::Speak...
Page 163 ® R&S ViCom LTE Technology R&S ViCom Building a LTE TopN View Measurement Description ViCom Name Part of ViCom struc- ture WB RSRP (TX3/RX0) Wideband RSRP, mea- sRSRPinDBm100 ViCom::LTE::SMeasRe- [dBm] sured from R3 on Fron- sult::SWidebandRsCinr- dwFrontEndSelection- tend RF1, over the com- Result Mask plete system bandwidth...
Page 164 ® R&S ViCom LTE Technology R&S ViCom Building a LTE TopN View Measurement Description ViCom Name Part of ViCom struc- ture WB RSRP noise clip- Noise clipped RSRP sNoiseClippedRSR- ViCom::LTE::SMeasRe- ped (TX0/RX1) [dBm] value based on the wide- PinDBm100 sult::SWidebandRsCinr- band reference signal Result dwFrontEndSelection-...
Page 165 ® R&S ViCom LTE Technology R&S ViCom Building a LTE TopN View Measurement Description ViCom Name Part of ViCom struc- ture WB RSRP noise clip- Noise clipped RSRP sNoiseClippedRSR- ViCom::LTE::SMeasRe- ped (TX2/RX1) [dBm] value based on the wide- PinDBm100 sult::SWidebandRsCinr- band reference signal Result dwFrontEndSelection-...
Page 166 ® R&S ViCom LTE Technology R&S ViCom Building a LTE TopN View Measurement Description ViCom Name Part of ViCom struc- ture WB RSRQ (TX2/RX0) Wideband RSRQ, mea- sRSRQinDB100 ViCom::LTE::SMeasRe- [dB] sured from R2 on Fron- sult::SWidebandRsCinr- dwFrontEndSelection- tend RF1, over the com- Result Mask plete system bandwidth...
Page 167 ® R&S ViCom LTE Technology R&S ViCom Building a LTE TopN View Measurement Description ViCom Name Part of ViCom struc- ture WB RSRQ noise clip- Noise clipped RSRQ sNoiseClippedRSR- ViCom::LTE::SMeasRe- ped (TX1/RX0) [dBm] value based on the wide- QinDB100 sult::SWidebandRsCinr- band reference signal Result dwFrontEndSelection-...
Page 168 ® R&S ViCom LTE Technology R&S ViCom Building a LTE TopN View Measurement Description ViCom Name Part of ViCom struc- ture WB RSRQ noise clip- Noise clipped RSRQ sNoiseClippedRSR- ViCom::LTE::SMeasRe- ped (TX3/RX0) [dBm] value based on the wide- QinDB100 sult::SWidebandRsCinr- band reference signal Result dwFrontEndSelection-...
Page 169 ® R&S ViCom LTE Technology R&S ViCom Building a LTE TopN View Measurement Description ViCom Name Part of ViCom struc- ture WB sub-band RSRP RSRP per RB, mea- pWidebandsub- ViCom::LTE::SMeasRe- (TX0/RX1) [dBm] sured from R0 on Fron- bandRSRPinDBm100 sult::SWidebandRsCinr- tend RF2, over the com- Result dwFrontEndSelection- plete system bandwidth...
Page 170 ® R&S ViCom LTE Technology R&S ViCom Building a LTE TopN View Measurement Description ViCom Name Part of ViCom struc- ture RS CINR (TX3/RX0) RS CINR over the com- sAverageRsCin- ViCom::LTE::SMeasRe- [dB] plete system bandwidth, rInDB100 sult::SWidebandRsCinr- measured from refer- Result dwFrontEndSelection- ence signal R3 on fron-...
Page 171 ® R&S ViCom LTE Technology R&S ViCom Building a LTE TopN View Measurement Description ViCom Name Part of ViCom struc- ture RS sub-band CINR RS sub-band CINR, pWidebandRsCinrVal- ViCom::LTE::SMeasRe- (TX0/RX1) [dB] measured from refer- sult::SWidebandRsCinr- ence signal R0 on fron- Result (one value per RB) dwFrontEndSelection-...
Page 172 ® R&S ViCom LTE Technology R&S ViCom Building a LTE TopN View Measurement Description ViCom Name Part of ViCom struc- ture WB RSSI TDD DL (Rx0) RSSI measured over the psRssiInDBm100 ViCom::LTE::SMeasRe- [dBm] complete system band- sult::SRssiAndSpectrum- dwFrontEndSelection- width measured on fron- Result Mask tend RF1, only in TDD...
Page 173 ® R&S ViCom LTE Technology R&S ViCom Building a LTE TopN View Measurement Description ViCom Name Part of ViCom struc- ture LTE system bandwidth Number of resource wRBNumberOfBts ViCom::LTE::SMeasRe- block transmitted by the sult::SMimoResult The number of resource eNode (or MHz) blocks transmitted from the eNodeB, i.e.
Page 174 ® R&S ViCom LTE Technology R&S ViCom Building a LTE TopN View s.MimoSettings.dwMimoResultMaskFor2x2 ViCom::LTE::SFrequencySetting::SMimoSettings::dwMIMO_RES_COND_NUMBER ViCom::LTE::SFrequencySetting::SMimoSettings::dwMIMO_RES_RANK; The application provides several MIMO results per block. In the TopN only one is nee- ded, use the following settings. s.MimoSettings. wTimeResolutionInMs= 0; User Manual 1505.1329.42 ─ 28...
Page 175: S Vicom Wimax Technology
® R&S ViCom WiMAX Technology R&S ViCom Measuring of WiMAX Signals 10 R&S ViCom WiMAX Technology WiMAX stands for Worldwide Interoperability for Microwave Access. Based on the IEEE 802.16 standard, WiMAX provides ubiquitous broadband communication ena- bling cost-effective access to multiple kinds of networks regardless of whether they are fixed or mobile and allowing high throughput rates by robust implementation.
Page 176: Configuration
® R&S ViCom WiMAX Technology R&S ViCom Measuring of WiMAX Signals 10.1.1 Configuration The first step to do WiMAX measurements via the WiMAX R&S ViCom module is to config its settings. Once the WiMAX R&S ViCom module is properly configured, the cli- ent application can then make subsequent API calls to retrieve the measurement results from the R&S TSMW / R&S TSME scanner.
Page 177: Measurement Result
® R&S ViCom WiMAX Technology R&S ViCom Measuring of WiMAX Signals 10.1.2 Measurement Result Once the measurement has been set up, the measurement results are returned when requested using GetResult(). The WiMAX measurement results (SMeasResult) can be classified into two: ●...
Page 178 ® R&S ViCom WiMAX Technology R&S ViCom Measuring of WiMAX Signals tains information regarding the current frame and is mapped to the FCH. More specifi- cally the DLFP contains the following information: ● Bitmap of Used Subchannels ● Length of Downlink Map (DL-MAP) that immediately follows the DLFP ●...
Page 179 ® R&S ViCom WiMAX Technology R&S ViCom Measuring of WiMAX Signals by the contents of the most significant three bits of the first data byte. When this combi- nation of three bits is set to 110 (an invalid combination for a standard header in the downlink), the compressed DL-MAP format is present.
Page 180: Wimax Demodulation Results
® R&S ViCom WiMAX Technology R&S ViCom GUI Sample Application 10.1.2.2 WiMAX Demodulation Results The WiMAX demodulation results are the decoded contents of the PDU of MAC Man- agement message. To get demodulation results, the client application first needs to check to make sure that pPduResult field of SMeasResult is no NULL (i.e.
Page 181: Setup Connection
® R&S ViCom WiMAX Technology R&S ViCom GUI Sample Application 10.2.1 Setup Connection The first action after starting the sample application, should be to enter the receiver type and the IP address of the R&S Instrument and click the "Load WiMAX Scanner" button, highlighted below.
Page 182: Measurement Controls
® R&S ViCom WiMAX Technology R&S ViCom GUI Sample Application 10.2.2 Measurement Controls The interface functions can now be accessed by clicking on the buttons shown below. The parameters to be used by the scanner (e.g. frequency and bandwidth) can be entered and edited in the columns in the center of the GUI.
Page 183: View Results
® R&S ViCom WiMAX Technology R&S ViCom GUI Sample Application “Get next 100” causes the application to get the next 100 measurement results from the interface buffer, The results will be written to the file ViComMeasurements, in the C:\RuS\ViCom_<version>\bin\LogFiles directory. After making a measurement, the R&S TSMW / R&S TSME can be unloaded using the "Release WiMAX Scanner"...
Page 184: Update Gui With Current Scanner Settings
® R&S ViCom WiMAX Technology R&S ViCom GUI Sample Application Figure 10-6: Result viewer A sample of a measurement file is shown in the following figure. For an explanation of the fields listed, see section 5, ViComdata fields, and the SMeasResult structure. Figure 10-7: Example of a measurement file 10.2.4 Update GUI with Current Scanner Settings The "Request Scanner Settings"...
Page 185: Miscellaneous
® R&S ViCom WiMAX Technology R&S ViCom GUI Sample Application dialogue fields. The settings can also be stored in an R&S TSMW / R&S TSME set- tings file (*.tsm), and later reloaded, using the "Save"/"Load" buttons respectively. Figure 10-8: Scanner settings 10.2.5 Miscellaneous Both the "Cancel"...
Page 186: Issuing A Request During Measurement
® R&S ViCom WiMAX Technology R&S ViCom GUI Sample Application – The second number is the internal PDU name. – The third number is the demodulation mode. – The fourth and final number is a timeout, if the demodulation mode is set to 2 (which means repetition mode).
Page 187: S Vicom Rf Scan And Rf Power Scan Technology
® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Measuring with the RF Scan 11 R&S ViCom RF Scan and RF Power Scan Technology This chapter describes how the RF Scan technology scan API is used to control one or more R&S TSMx Family instrument to measure the spectrum of multiple frequency ranges in a high-speed fashion.
Page 188 ® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Measuring with the RF Scan such measurement from a lower frequency to higher one is called sweep. The R&S TSM Instruments perform sweeps at a constant rate. To generate a frequency spectrum from raw R&S TSM Instrument measurements, at least one sweep must be performed.
Page 189 ® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Measuring with the RF Scan Figure 11-1: Request processing scheme over time The situation depicted in the previous figure is handled like explained in following: When the processing of the first request is started, a single sweep is available in the R&S TSM Instrument cache.
Page 190: Architecture And Functionality Of The Rf Scan Technology
® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Architecture and Functionality of the RF Scan Technology 11.2 Architecture and Functionality of the RF Scan Tech- nology This section describes the architecture of the R&S ViCom RF Power Technology Inter- face, along with the details of how the different post processing units work.
Page 191: The Post Processor Chain
® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Architecture and Functionality of the RF Scan Technology Figure 11-2: RF Power Scan Technology Architecture 11.2.2 The Post Processor Chain In the previous section, the calculation of the derived results was described as a way to convert the raw measurement data from the R&S TSM Instrument to a more conven- ient presentation form.
Page 192: Sweep Result Buffer
® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Architecture and Functionality of the RF Scan Technology This design was chosen because post-processing can be configured in many ways. For example, one use case is to aggregate data into channels. Based on that result, one might with to know what the strongest transmitter is in such a channel list.
Page 193: Spectrum Filter
® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Architecture and Functionality of the RF Scan Technology sequent filters to find appropriate values faster than searching in a complete list of val- ues. This result buffer stores the raw measurement data gathered from the R&S TSM Instruments.
Page 194 ® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Architecture and Functionality of the RF Scan Technology The power values are converted to Watt internally before the interpolation can be per- formed, since the input values must be linearized. This might result in small numerical errors when transforming the power values from one representation into another and back.
Page 195: Channel Filter
® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Architecture and Functionality of the RF Scan Technology RMS would calculate the average of the native measurements, which are shown as bigger circles in the figure. Figure 11-5: Power value compression The spectrum filter itself decides which algorithm to apply.
Page 196 ® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Architecture and Functionality of the RF Scan Technology The power scale function is always symmetrical and is defined in equidistant steps from the center frequency to some lower/upper limit. The limit is implicitly defined by the number of equidistant points and the spacing between those points.
Page 197: Time Detector
® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Architecture and Functionality of the RF Scan Technology 934.6 MHz, 934.8 MHz, 935.0 MHz, 935.2 MHz, 935.4 MHz, 935.6 MHz and 935.8 MHz. This approach can be used to make the center frequency dominant, for example, by setting the weight function to 2 at the center and to low values for the rest.
Page 198 ® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Architecture and Functionality of the RF Scan Technology As for the spectrum filter, the central problem is how to find a representing value from a set of values for a frequency gathered over time. Compared to the frequency detector, the different values from which one must be chosen have the same frequency.
Page 199: Marker Tool
® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Architecture and Functionality of the RF Scan Technology Power dBm 935.2 MHz 935.4 MHz 935.6 MHz 935.8 MHz 3: -105 ( p < -100 4: p ( -100 Twelve sweeps per each frequency were used to generate the resulting histogram.
Page 200: Sample Application
® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Sample Application Minimum Power Level and Resolution The final results are returned in a WORD-Array. The unsigned integer numbers stored there have to be set in relation to a minimum threshold and have been shifted to make the minimum resolution that shall be available an integer.
Page 201 ® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Sample Application Figure 11-8: ViCom RF Scan technology sample application As the figure shows, the dialog is divided in three major columns. The left-most column manages the different logical receivers. Each receiver stands for one of the connected R&S TSM Instruments.
Page 202: A Walk-Through Example
® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Sample Application 11.3.1 A Walk-Through Example The general workflow when using the application is as follows: ● Load receiver(s) ● Read device settings ● Change them to your needs and update them in the device ●...
Page 203: Step 2: Reading The Device Settings
® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Sample Application The combo box right to the "Load RF Power Scanner" button controls to which logical receiver all the changes made in the rest of the GUI apply to. If you change the value in here, the control values also update accordingly, except for the settings in the right- most column.
Page 204: Step 3: Set Parameters
® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Sample Application Note that these settings exactly match the values from the structures ● SRfSweepRange ● SRfSweepRate ● SRfSweepBuffer ● SRfSweepAttenuationLimits ● SRfSweepAdcOverflowAction ● SRfSweepSectionRelation stored in the ViCom::RFPOWERSCAN::SSettings structure. 11.3.1.3 Step 3: Set parameters Before a changed value is set in the logical device, the related "Set"...
Page 205: Step 6: Fetch And View Measurement Results
® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Sample Application Figure 11-11: General derived result settings The figure above shows some of the settings you can specify for a derived request. Each different post-process is identified by the number shown in the combobox. For our example, we create two request identifiers for the first logical device.
Page 206 ® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Sample Application Figure 11-12: How to fetch results If there are not enough results in the buffer to satisfy the request, the demo application waits for five seconds if other records arrive. If not, a message box is shown. Any result that is available and requested will be written into the file.
Page 207: Step 7: Stop Measurement
® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom RF Power Scan Technology ● The overflow indicator tells whether an overflow occurred during calculation of this result or not. If so, the values might not be the real measurement values, according to what was specified in the common settings of the power scanner before.
Page 208: Interface Concept
® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom RF Power Scan Technology ity) are available to define the measurement. If the desired sweep range exceeds the maximum real time bandwidth of the R&S TSMW or the R&S TSME, the frequency band is segmented.
Page 209: Sample Application
® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom RF Power Scan Technology 11.4.3 Sample Application The sample application is a simple program to demonstrate the capabilities of the RF Power Scan and to give examples for the interface integration. The sample application itself is only a launcher of interface instances.
Page 210 ® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom RF Power Scan Technology The channel filter mode is activated by checking the "Enable sequence" box. There is a special dialog window for the filter setup. The channel filter setup consists of two parts: ●...
Page 211: Rf Power Scan Technology Specific Trouble Shooting
® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom RF Power Scan Technology Specific Trouble Shooting If the marker is enabled, there is no spectrum data to display. Instead the frequency and the maximum power level of the marker is shown. In this case the individual results are collected in the log file which can be viewed by clicking the "View"...
Page 212: Using R&S Tsmw Rf Power Scan In A Typical Drive Test Use Case
® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Using R&S TSMW RF Power Scan in a Typical Drive Test Use Case I enabled the marker tool on my channel filtered data. The marked frequency is always in the first group of channels that I configured.
Page 213: Measurement Rate
® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Using R&S TSMW RF Power Scan in a Typical Drive Test Use Case ViCom::RFPOWERSCAN::SSpectrumSettings: bAutoAttenuation: set this to 1 to enable automatic attenuation management in the instrument. Other setting is expert mode. eWindowType: set this to RFPOWERSCAN_WINDOWTYPE_FLATTOP = 4.
Page 214 ® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Using R&S TSMW RF Power Scan in a Typical Drive Test Use Case Figure 11-15: Processing steps of measurements data Further processing after the buffer allows aggregating several sweeps into a single measurement value.
Page 215: Data Aggregation
® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Using R&S TSMW RF Power Scan in a Typical Drive Test Use Case ViCom::RFPOWERSCAN::SSpectrumSettings fMaxMeasRateInHz = 10 fMaxReportingRateInHz = 5 dwMaxAgeOfBufferedMeasInMs = 200 These rates are the requested measurement rates to the R&S TSMW. The R&S TSMW will aim to fulfill these rates, but depending on other measurement tasks run- ning on the scanner (e.g.
Page 216: Other Settings
® R&S ViCom RF Scan and RF Power Scan Technology R&S ViCom Spectrum Clearance Use Case with RF Power Scan Therefore the Frequency Detector is able to aggregate several measurement values into one value on the frequency axis. Using a user configurable frequency resolution for the display of the results, the SW can automatically scale the amount of values reported in the frequency axis.
Page 217: S Vicom Td-Scdma Technology
® R&S ViCom TD-SCDMA Technology R&S ViCom General 12 R&S ViCom TD-SCDMA Technology ● General......................... 201 ● Measurement Configuration..................202 ● Measurement Results................... 202 12.1 General TD-SCDMA is one of the third generation technologies used for mobile communication. It is based on time division multiple access with downlink and uplink on the same fre- quency and asymmetric (configurable) bandwidth distribution.
Page 218: Slot Structure
® R&S ViCom TD-SCDMA Technology R&S ViCom Measurement Results 12.1.2 Slot Structure The standard timeslot is structured into two data fields and a midamble section. At the end of the slot is an empty guard period: Figure 12-2: Timeslot structure according to ETSI TS 125.221 The data fields carry scrambled information symbols.
Page 219 ® R&S ViCom TD-SCDMA Technology R&S ViCom Measurement Results Parameter Description Comment Time offset Time offset of the subframe with respect An absolute time is obtained in combina- to the beginning of the acquisition. tion with the acquisition time from the R&S TSMW RSSI TS 0 Received signal strength averaged over...
Page 220 ® R&S ViCom TD-SCDMA Technology R&S ViCom Measurement Results The general RF characteristics of the radio channel are the spectrum and the power profile. The spectrum is measured over a 320 µsec interval in the acquisition providing a reso- lution of 3.125 kHz and a bandwidth of 4.1 MHz. Assuming a channel spacing of 1.6 MHz parts of the spectral components of neighbor channels are included.
Page 221 ® R&S ViCom TD-SCDMA Technology R&S ViCom Measurement Results Figure 12-6: Power profile from a live measurement with different levels for the slots User Manual 1505.1329.42 ─ 28...
Page 222: S Vicom Cw Technology
® R&S ViCom CW Technology R&S ViCom Channel Power Measurements 13 R&S ViCom CW Technology In this chapter, the Receiver Channel Power measurement module is described. Chan- nel power measurement is similar to the inband power measurement available in the GSM network scanner, but it can be configured in a more flexible way using the CW measurements API.
Page 223: Measurement Modes
® R&S ViCom CW Technology R&S ViCom Channel Power Measurements Figure 13-1: Channel power measurement From the external triggers, the number of times they have been recorded and the time intervals between those triggers, internal triggers are generated. These internal trig- gers are the basic element to decide which raw measurement blocks are moved to the internal ring buffer, which in turn is used as input for different calculation routines.
Page 224: Single Channel Measurement
® R&S ViCom CW Technology R&S ViCom Channel Power Measurements As input both modes require a list of channels to be defined. Each channel consists of a center frequency, a bandwidth and a measurement time specification. The measure- ment mode can be specified for each single channel, the R&S TSM Instruments soft- ware will then combine related channels and measurement modes appropriately to make the best use of the available processing time.
Page 225: Multi Channel Measurement
® R&S ViCom CW Technology R&S ViCom Channel Power Measurements 13.1.1.2 Multi Channel Measurement To gain high measurement performance the channels specified to be measured are grouped together to cover a bandwidth of at most 4 MHz in each group. One such group is then measured together, which leads to higher measurement rates since the frequency has to be set only once in the hardware.
Page 226: Free Run
® R&S ViCom CW Technology R&S ViCom Channel Power Measurements 13.1.2.1 Free Run The Free Run Mode works without external triggering and processes the raw data as soon as enough chunks are available to serve the required measurement time. In sin- gle channel mode, that means that one channel is measured until the total time required to measure the raw chunks exceeds the required measurement time.
Page 227 ® R&S ViCom CW Technology R&S ViCom Channel Power Measurements and if so, the chunk (and possible the following ones as well) will be used to calculate the channel power. When triggering is active, the trigger signal from the external device can be filtered to generate internal triggers that result in the creation of a measurement result.
Page 228 ® R&S ViCom CW Technology R&S ViCom Channel Power Measurements Figure 13-5: Internal trigger calculation Until the first internal trigger for a sweep is raised, the raw measurement data is ignored and not stored for later power value calculation. The chunk that is associated with the time interval that contains the extrapolated timestamp for the internal trigger, is the first used to calculate the power value for the channel.
Page 229 ® R&S ViCom CW Technology R&S ViCom Channel Power Measurements Figure 13-6: Triggering in single channel mode The Multi Channel mode basically works in the same way. The raw measurement data is only processed with the FFT and the spectrum is analysed after the internal trigger is raised.
Page 230: Channel Power Aggregation
® R&S ViCom CW Technology R&S ViCom Channel Power Measurements One important difference between the Single and Multi Channel Measurement mode is illustrated in the figure above as well. In case of the Multi Channel Mode, the measure- ment time of one set of frequency that is measured in a row is chosen to best-fit the maximum measurement time of the included channels.
Page 231: Sample Application
® R&S ViCom CW Technology R&S ViCom Sample Application ● AVERAGE: Calculate the linearized average of all the power values calculated for the different raw measurements, where p is the power value of the raw measure- ment i, and N is the number of measurements contributing to the overall result. ●...
Page 232 ® R&S ViCom CW Technology R&S ViCom Sample Application Figure 13-9: R&S ViCom CW technology sample application In this demo application, the usage is straightforward. The most important settings are made in the central column, that is, the measured channels' configuration. Important settings are also made in the right column, in the text boxes "Measurement Type"...
Page 233 ® R&S ViCom CW Technology R&S ViCom Sample Application New lines can be entered by pressing Ctrl+Enter. Once the frequencies are specified, a click on "Set Frequencies" transfers these settings to the R&S TSM Instrument, if all validation routines have been passed successfully. The measurement type can be one of the values listed below, and is set using the "Set Measurement Mode"...
Page 234 ® R&S ViCom CW Technology R&S ViCom Sample Application Figure 13-10: Screenshot of measurement result Each result contains a number of sweeps, where the frequencies are given in ascend- ing order. The sweeps are not necessarily delivered completely; parts of sweeps maybe deliv- ered with the next result, as shown in the previous figure.
Page 235: S Vicom Automatic Channel Detection
® R&S ViCom Automatic Channel Detection R&S ViCom General Operation 14 R&S ViCom Automatic Channel Detection ● General Operation....................219 ● Configuration......................221 ● Measurements...................... 222 14.1 General Operation The R&S ViCom Automatic Channel Detection (R&S ViCom ACD) allows to detect and locate all channels in use on specified frequency bands for several scanner technolo- gies.
Page 236: Smart Acd
® R&S ViCom Automatic Channel Detection R&S ViCom General Operation This mode is useful to detect channels at one location, and for starting a drive from that location assuming that the channel allocation will not change during the drive route. If the primary goal of the measurement is the detection of cells and the speed of the measurement on already detected cells is of secondary interest, running the ACD in simple mode is the best solution.
Page 237: Configuration
® R&S ViCom Automatic Channel Detection R&S ViCom Configuration Example: ● If you want to use Smart ACD for LTE channel detection with the R&S TSME you need the R&S options K40, K27 and K29. ● If you want to use Simple ACD for CDMA channel detection with the R&S TSMW you need the R&S options K40 and K22.
Page 238: Lte Constraints
® R&S ViCom Automatic Channel Detection R&S ViCom Measurements 14.2.2 LTE Constraints The Smart ACD for LTE will search for bandwidths starting with the minimum band- width as specified in the ACD’s configuration. It supports bandwidths of 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz and 20MHz. To improve the detection rate, it is highly recommended to set the minimum bandwidth correctly (if known), especially in bands which are used for several technologies.
Page 239: S Vicom Gps
® R&S ViCom GPS R&S ViCom Sample Application 15 R&S ViCom GPS As mentioned in previous chapters, the R&S TSMW / R&S TSME have a built-in GPS module. This chapter describes how to use this GPS receiver with the R&S ViCom. R&S ViCom GPS implements functionality which: ●...
Page 240: Measurements
® R&S ViCom GPS R&S ViCom Measurements Figure 15-1: R&S ViCom GPS sample application 15.2 Measurements Perform the following steps to make a GPS measurement. ● R&S TSMW / R&S TSME Address............... 224 ● Message Format....................224 ● Measurement......................225 ●...
Page 241: Measurement
® R&S ViCom GPS R&S ViCom Measurements Select the format in the "Message format" box. The dialog box "Send message" allows you to send command messages to the GPS module. Obviously, messages should be sent in the given format. Messages resulting from commands or from measurements, will appear in the mes- sage window.
Page 242: Ending The Session
® R&S ViCom GPS R&S ViCom Measurements $GPGSV Satellites in View Format $GPGSV, 2,1,08,01,40,083,46,02,17,308,41 ,12,07,344,39,14,22,228,45*7 Number of sentences for full data sentence 1 of 2 Number of satellites in view Satellite PRN number Elevation, degrees Azimuth, degrees SNR - higher is better As above For upto 4 satellites per sequence the checksum data, always...
Page 243 ® R&S ViCom GPS R&S ViCom Measurements Clicking "Browse" lets you find the result file you want to open, and "View" opens the file in the viewer. User Manual 1505.1329.42 ─ 28...
Page 244: S Vicom Rs232 Tunneling
® R&S ViCom RS232 Tunneling R&S ViCom Sample Application 16 R&S ViCom RS232 Tunneling The R&S TSMx Family has different connection ports at the back: Two FireWire con- nections, several antenna connectors, a power connector and one RS232 interface. The latter can be used to connect an additional device to the R&S TSMx Family model, making it controllable by the PC that the R&S TSMx Family model is connected too.
Page 245 ® R&S ViCom RS232 Tunneling R&S ViCom Sample Application buttons that are used to set the R&S TSMx Family model in a desired state or to apply settings. As in the other applications, the center of the dialog is consumed by the technology specific elements.
Page 246: Walk-Through Example
® R&S ViCom RS232 Tunneling R&S ViCom Sample Application ● Walk-Through Example..................230 ● Result Loopback to RS232................... 231 ● Silent Mode......................231 16.1.1 Walk-Through Example The general procedure to set up a measurement with the RS232 API is as follows: 1.
Page 247: Result Loopback To Rs232
® R&S ViCom RS232 Tunneling R&S ViCom Sample Application If there is data in the result buffer, its content is written to the output file ViComMeasurements.txt when the "Get Results" button is pressed and the "Store Results" mode is set. Additionally, the received raw data is written into another text file called ViComMeasurements_RS232Received.txt of the LogFiles directory.
Page 248: S Remote Vicom Interface
® R&S Remote ViCom Interface R&S ViCom Overview of R&S Remote ViCom Architecture 17 R&S Remote ViCom Interface ● Overview of R&S Remote ViCom Architecture............. 232 ● Usage of R&S Remote ViCom Interface............... 233 ● Example of R&S Remote ViCom Application with R&S TSMA......
Page 249: Usage Of R&S Remote Vicom Interface
® R&S Remote ViCom Interface R&S ViCom Example of R&S Remote ViCom Application with R&S TSMA 17.2 Usage of R&S Remote ViCom Interface The delivery of the R&S Remote ViCom package contains a sample application, com- piled as an *.apk and the related structured source code. It can be downloaded also from the R&S website: http://www.rohde-schwarz.com/en/software/tsma/ The following measurement tasks are supported by the sample application:...
Page 250: Requirement For Bluetooth Connection
® R&S Remote ViCom Interface R&S ViCom Example of R&S Remote ViCom Application with R&S TSMA 17.3.1.1 Requirement for Bluetooth Connection In order to use a Bluetooth connection, turn on the Bluetooth adapter and establish the connection with the device the server is running on. 17.3.1.2 Requirement for WLAN Connection In order to use a WLAN connection, establish the connection to the WLAN network...
Page 251: Task Configuration
® R&S Remote ViCom Interface R&S ViCom Task Configuration Figure 17-3: Active Server Discovery 3. If a server is found, the server will be connected and the name of the server is dis- played. Figure 17-4: Successful Server Discovery In order to stop the server discovery the application has to be closed. If no server was found, it is possible to start a new scan by selecting "Rescan"...
Page 252: Gsm Rssi Scan
® R&S Remote ViCom Interface R&S ViCom Task Configuration Throughput test: provides a throughput test for the connection using configurable buffer size RF Power Scan: provides a spectrum analysis by selecting the frequency range ● GSM RSSI Scan....................236 ● WCDMA Scan.......................
Page 253: Wcdma Scan
® R&S Remote ViCom Interface R&S ViCom Task Configuration Figure 17-6: GSM Scan Result View Following additional information is displayed: Parameters Displays the configured preferences for the GSM RSSI scan. Status Displays the measurement duration and the measurement rate. The status button dis- plays the following colored statuses.
Page 254 ® R&S Remote ViCom Interface R&S ViCom Task Configuration Figure 17-7: Setting the WCDMA Preferences 3. Click "Start scan" to start the scan. 4. In order to stop the scan, use "Stop scan" in the menu inflator in the top right cor- ner.
Page 255: Lte Scan
® R&S Remote ViCom Interface R&S ViCom Task Configuration Displays the measurement duration and the measurement rate. The status button dis- plays the colored statuses previously mentioned, see Chapter 17.4.1, "GSM RSSI Scan", on page 236. 17.4.3 LTE Scan In order to start a LTE scan, the following steps must be performed. 1.
Page 256: Throughput Test
® R&S Remote ViCom Interface R&S ViCom Task Configuration Figure 17-10: LTE Scan Result View Following additional information is displayed. Parameters Displays the configured parameters for the LTE scan. Status Displays the measurement duration and the measurement rate. The status button dis- plays the colored statuses previously mentioned, see Chapter 17.4.1, "GSM RSSI Scan",...
Page 257: Rf Power Scan
® R&S Remote ViCom Interface R&S ViCom Task Configuration 3. In order to s87top the scan, use "Stop scan" in the menu inflator in the top right corner. For WLAN, the optimal buffer size varies between 950.000 byte and 1.000.000 byte. For Bluetooth, the optimal buffer size varies between 81.000 byte and 165.000 byte.
Page 258 ® R&S Remote ViCom Interface R&S ViCom Task Configuration Figure 17-13: RF Power Scan Preferences 2. Click "Start Test" to start the scan. The result of the RF power scan is a spectrum of the frequency range set before with the following axes: ●...
Page 259: Appendix
® Appendix R&S ViCom R&S TSMx Family Option Handling 18 Appendix ● R&S TSMx Family Option Handling..............243 ● R&S TSMW Configuration..................250 ● R&S TSME Configuration..................253 ● Frequently Asked Questions................. 253 ● Technical Notes....................254 18.1 R&S TSMx Family Option Handling With the TsmxOptionKeyInstaller utility, it is possible to check the IEEE1394 connec- tion and check the instrument data set.
Page 260: Program Start
® Appendix R&S ViCom R&S TSMx Family Option Handling 18.1.2 Program Start To use this program, reset the R&S TSMx Family instrument and wait for the terminal output "Waiting for elf file from IEEE1394". Start the TsmxOptionKeyInstaller utility by executing the TsmxOptionKeyInstaller.exe in the program's directory C:\RuS\ViCom_<ver- sion>\tools\TSMx\OptionKeyInstaller.
Page 261: Display Contents Of The R&S Tsmx Family Options Tab
® Appendix R&S ViCom R&S TSMx Family Option Handling ● Input Power type of input stage Normal: standard input power (R&S TSMU, R&S TSML-x) High:extended input power (R&S TSMU-H) ● JTAG Devices ACE V2Pro: 1st Controller Board version ACE V2Pro Counter: 2nd Controller Board version (with CPLD) ●...
Page 262: Installing The R&S Tsmx Family Windows Driver Manually
® Appendix R&S ViCom R&S TSMx Family Option Handling The "Installed Option Keys" list box displays all the installed OptionKeys and the expiry date of time limited keys. If that list is empty and the program indicates “No device key has been found” (circled in red in following figure) all the available options are enabled with application file cod- ing.
Page 263 ® Appendix R&S ViCom R&S TSMx Family Option Handling Double-click the executable TSMxDriverInstall.exe file. After a short pause, the following splash screen appears. Follow the instructions in the dialogue box; make sure that no application is using an R&S TSMx Family instrument and that the Device Manager is not displaying R&S TSMx Family instrument's property pages.
Page 264: R&S Tsmx Family Firmware Upgrade
® Appendix R&S ViCom R&S TSMx Family Option Handling Instructions for using TsmxOptionKeyInstaller are given in R&S TSMx Family Option Handling. If the log messages of the OptionKeyInstaller show that a connected R&S TSMx Family instrument has been found, this means that the IEEE1394 connection is working, and that the test application can be run.
Page 265 ® Appendix R&S ViCom R&S TSMx Family Option Handling To perform the installation: 1. Click the button "Choose Firmware" to choose the firmware that shall be installed. A drop-down menu opens and lists all the available firmware versions. These are extracted from the Firmware subfolder that can be found in the application path.
Page 266: R&S Tsmw Configuration
® Appendix R&S ViCom R&S TSMW Configuration 7. Press the installation button showing the selected firmware version. A progress view window is shown. 8. When the installation is finished, reboot your R&S TSMx Family instrument man- ually to really apply the update to all parts of the software. It is essential to reboot the R&S TSMx Family instrument after the firmware udgrade.
Page 267: System Information
® Appendix R&S ViCom R&S TSMW Configuration 18.2.1 System Information If the web page can be opened, it should look similar to the one depicted below. There are several basic information, like the software version numbers and the current IP configuration, shown on the first page.
Page 268 ® Appendix R&S ViCom R&S TSMW Configuration New options can be installed when either an option file or an option key is available. This can be done in the "Install Option Key" section shown in the following figure. User Manual 1505.1329.42 ─ 28...
Page 269: Firmware Update
® Appendix R&S ViCom Frequently Asked Questions 18.2.3 Firmware Update The R&S TSMW firmware can be updated using the same HTML page where the options can be queried. The "Browse" button in the section "Firmware Update" can be used to search for the firmware file containing the new firmware code. Once the path to the file is visible in the text field, the "Install"...
Page 270: Technical Notes
® Appendix R&S ViCom Technical Notes When I click “Load PNS Scanner” in the sample program, I get an error message “The interface ver- sion of the ViCom library and the interface header file does not match.” The interface version corresponds to the last part of the file version string of the ViCom interface dll, named ViComXXXX.dll, where XXXX specifies the interface type.
Page 271 ® Appendix R&S ViCom Technical Notes Table 18-1: UTRA operating bands and channel numbers: Uplink Operating Band UL Frequency Frequency offset Assigned Chan- Assigned Center Band FOffset nels Frequencies 1920 MHz to 1980 9612 to 9888 1922.4 MHz to 1977.6 MHz in steps of 02 MHz 1850 MHz to 1910...
Page 272 ® Appendix R&S ViCom Technical Notes Table 18-3: UMTS SIB numbers and corresponding PDUs SIB Number Contents Reference in 3GPP TS Corresponding PDU 25.133v5.x.x NAS system information. 10.2.48.8.4 UE timers and counters. URA Identity 10.2.48.8.5 Parameters needed for 10.2.48.8.6 cell selection and rese- lection, including the identity of the current cell.
Page 273 ® Appendix R&S ViCom Technical Notes SIB Number Contents Reference in 3GPP TS Corresponding PDU 25.133v5.x.x Parameters for common 10.2.48.8.17 and dedicated physical channel uplink outer loop power control informa- tion to be used in both idle and connected mode. SIB Number Contents Reference in 3GPP TS...
Page 274: Index
® Index R&S ViCom Index LTE GUI Sample Application .......... 132 Using the sample application ........132 ACD Configuration ............221 LTE Throughput Estimation Results ACD Measurements ............222 CQI measurement results ......... 130 Architecture and Functionality of the RF Scan Technology Throughput measurement results ......
Page 275 ® Index R&S ViCom R&S ViCom LTE Technology .......... 112 R&S ViCom RF Scan and RF Power Scan Technology 171 R&S ViCom WCDMA Technology ........58 R&S ViCom WiMAX Technology ........159 GUI Sample Application ..........164 RF Power Scan Technology ........... 191 Interface concept ............