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SMIQ

Digital Standard 3GPP W-CDMA (FDD)

1125.5555.03

E-9

2.213

Resolve all Conflicts

If you select the

RESOLVE ALL

button in the domain conflict info window, the SMIQ tries to arrange the

active code channels so that no overlapping occurs in the code domain. The channelization code
number of the channels is varied to do this. The effect of a conflict resolution is shown by the code
domain display.

Fig. 2-130

WCDMA/3GPP – BS CONFIGURATION / CODE DOMAIN menu (after conflict resolution)

If the assigned domain of all active channels is greater than the physically available domain (e.g. 5
channels with 960 ksps at a chip rate of 3.84 Mcps), conflicts can no longer be resolved. The message "no
resolution of domain conflicts possible" is displayed.

2.14.2.10 Effect of CLIPPING LEVEL Parameter on Signal

W-CDMA signals may have very high crest factors - especially if the number of channels is high and the data
offset is unfavourable (see sections 2.14.3.3 and 2.14.3.4). High crest factors entail two basic problems:
1. The nonlinearity of the power amplifier (compression) causes intermodulation which expands the

spectrum (spectral regrowth).

2. Since the level in the D/A converter is relative to the maximum value, the average value is converted

with a relatively low resolution. This results in a high quantization noise.

Both effects increase the adjacent-channel power.

From all the possibilities listed in section 2.14.3.4 for influencing the crest factor, changing the
CLIPPING LEVEL is the simplest and most effective. In this case a limit value is defined which is a
percentage of the highest peak value. All current values exceeding this limit will be clipped to this value.
Since clipping is done prior to filtering, the procedure does not influence the spectrum. The EVM
however increases. Since clipping the signal not only changes the peak value but also the average
value, the effect on the crest factor is unpredictable. The following table shows the effect of the
CLIPPING LEVEL on the crest factor for typical scenarios.

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Содержание 1125.5555.02

Страница 1: ...g Manual VECTOR SIGNAL GENERATOR SMIQ02B 1125 5555 02 SMIQ03B 1125 5555 03 SMIQ03HD 1125 5555 33 SMIQ04B 1125 5555 04 SMIQ06B 1125 5555 06 SMIQ06ATE 1125 5555 26 Volume 1 This Operating Manual consists of 2 volumes Printed in the Federal Republic of Germany ...

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Страница 3: ...tem 1 in front panel view The connectors on the front panel item 4 in front panel view are provided on the rear panel The following connectors are not fitted I Faded Q Faded I Q AUX LF EXT 1 EXT 2 SYM CLK X AXIS BLANK MARKER SER DATA PULS EXTTUNE BER DATA BITCLOCK and PAR DATA For manual operation of the SMIQ06ATE please download SMIQ TV from the www rohde schwarz com website SMIQ TV runs on any e...

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Страница 5: ... be switched OFF OFF filter off 2 5 MHz 2 5 MHz lowpass filter 5 MHz 5 MHz lowpass filter 7 5 MHz 7 5 MHz lowpass filter 10 MHz 10 MHz lowpass filter IEC IEEE bus commands SOUR DM IQ FILT STAT ON OFF SOUR DM IQ FILT FREQ 2 5MHZ HIGH ACLR W CDMA signals with a very high adjacent channel power ratio ACPR can be generated in the 3GPP downlink band by means of option SMIQB57 High ACLR for W CDMA in co...

Страница 6: ...n the Attenuator Fixed mode IEC IEEE bus command SOUR DM IQ HACLr STAT New Features Not Concerning HD Model VECTOR MOD menu IQ FILTER Only with option SMIQB47 not on SMIQ03HD Selection between filter off and a 850 kHz 2 5 MHz or 5 MHz lowpass filter in the baseband The filters suppress noise in the baseband from 900 kHz 3 MHz or 6 MHz which improves adjacent channel power ACP with IS 95 and W CDMA...

Страница 7: ...SMIQB48 is installed For more information refer to section 2 15 4 Section 2 15 4 ADD OCNS Generation of orthogonal channel noise OCNS to TS 25 101 The OCNS scenario is defined as follows Table C 6 DPCH spreading code timing offsets and relative level settings for OCNS signal Channelization code Timing offset x256Tchip Level setting dB 2 86 1 11 134 3 17 52 3 23 45 5 31 143 2 38 112 4 47 59 8 55 23...

Страница 8: ...hed on Further Settings of ENHANCED CHANNELS Menu SEQUENCE LENGTH The maximum sequence length not only depends on free DGEN list memory space but also decisively on the ENHANCED P CCPCH BCH status and where applicable on the number of DPCHs ENHANCED P CCPCH BCH STATE OFF 1 DPCH 1022 frames 2 DPCHs 511 frames 3 DPCHs 341 frames 4 DPCHs 255 frames ENHANCED P CCPCH BCH STATE ON SYMBOL RATE DPCH 30 ks...

Страница 9: ...ough measurements The adjacent channel power for symbol rates 200 kHz is essentially determined through multiplicative phase noise The IQ level can be set to 250 mV p independent of the modulation signal The level error caused by a change in the IQ level can be corrected with the LEVEL OFFSET ARB MOD With the LOW NOISE LOW DIST output mode the modulation in the SMIQ only changes by a fixed amount ...

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Страница 11: ...ate of Conformity List of R S Representatives Tabbed Divider 1 Chapter 1 Preparation for Use 2 Chapter 2 Manual Operation 10 Index Volume 2 How to Use this Manual Contents Safety Instructions Tabbed Divider 3 Chapter 3 Remote Control 4 Chapter 4 Maintenance 5 Chapter 5 Performance Test 6 Annex A Interfaces 7 Annex B List of Error Messages 8 Annex C List of Commands 9 Annex D Programming Example 10...

Страница 12: ...tal Standard W CDMA Option SMIQB45 Digital Standard 3 GPP W CDMA Option SMIQB47 LOW ACP Filter Option SMIQB48 Enhanced Functions für 3GPP W CDMA Option SMIQB49 Dynamic Fading Option SMIQB60 Arbitrary Waveform Generator The chapters with associated contents are as follows Data sheets list guaranteed specifications for the functions and characteristics of the unit and its options Chapter 1 provides ...

Страница 13: ...lable in the unit and its options Chapter 4 informs about preventive maintenance and functional tests Chapter 5 contains information on how to check the rated specifications required test equipment test setup test procedure and on the performance test report Annex A provides information on interfaces Annex B contains a list of SCPI and SMIQ specific error messages displayed by the unit Annex C pro...

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Страница 15: ...tory environments or in the field and must not be used in any way that may cause personal injury or property damage You are responsible if the product is used for an intention other than its designated purpose or in disregard of the manufacturer s instructions The manufacturer shall assume no responsibility for such use of the product The product is used for its designated purpose if it is used in...

Страница 16: ...or unassociated documentation can result in misinterpretations and thus contribute to personal injury or material damage Basic safety instructions 1 The product may be operated only under the operating conditions and in the positions specified by the manufacturer Its ventilation must not be obstructed during operation Unless otherwise specified the following requirements apply to Rohde Schwarz pro...

Страница 17: ...accordingly 9 In the case of products of safety class I with movable power cord and connector operation is permitted only on sockets with earthing contact and protective earth connection 10 Intentionally breaking the protective earth connection either in the feed line or in the product itself is not permitted Doing so can result in the danger of an electric shock from the product If extension cord...

Страница 18: ...properly replaced this can cause an explosion warning lithium cells Replace the battery or storage battery only with the matching Rohde Schwarz type see spare parts list Batteries and storage batteries are hazardous waste Dispose of them only in specially marked containers Observe local regulations regarding waste disposal Do not short circuit batteries or storage batteries 28 Please be aware that...

Страница 19: ...na persona cosa pueda ser dañada El uso del producto fuera de sus fines definidos o despreciando las informaciones de seguridad del fabricante queda en la responsabilidad del usuario El fabricante no se hace en ninguna forma responsable de consecuencias a causa del maluso del producto Se parte del uso correcto del producto para los fines definidos si el producto es utilizado dentro de las instrucc...

Страница 20: ...definición Por eso se debera tener en cuenta que las palabras de señal aquí descritas sean utilizadas siempre solamente en combinación con la correspondiente documentación y solamente en combinación con el producto correspondiente La utilización de las palabras de señal en combinación con productos o documentaciones que no les correspondan puede llevar a malinterpretaciones y tener por consecuenci...

Страница 21: ... En vista a la protección de la vida en desarrollo deberían ser protegidas personas embarazadas debidamente También las personas con un bypass pueden correr peligro a causa de la radiación electromagnética El empresario está comprometido a valorar y señalar areas de trabajo en las que se corra un riesgo de exposición a radiaciones aumentadas de riesgo aumentado para evitar riesgos 7 La utilización...

Страница 22: ...n y la conexión deberán ser efecutadas por un electricista especializado 20 En caso de que los productos que son instalados fijamente en un lugar sean sin protector implementado autointerruptor o similares objetos de protección deberá la toma de corriente estar protegida de manera que los productos o los usuarios estén suficientemente protegidos 21 Por favor no introduzca ningún objeto que no esté...

Страница 23: ...jemplo paredes y estantes 31 Las asas instaladas en los productos sirven solamente de ayuda para el manejo que solamente está previsto para personas Por eso no está permitido utilizar las asas para la sujecion en o sobre medios de transporte como por ejemplo grúas carretillas elevadoras de horquilla carros etc El usuario es responsable de que los productos sean sujetados de forma segura a los medi...

Страница 24: ...ew of the Slots 1 6 1 3 3 Option SM B1 Reference Oscillator OCXO 1 6 1 3 4 Option SM B5 FM PM Modulator 1 8 1 3 5 Option SMIQB11 Data Generator 1 9 1 3 6 Option SMIQB12 Memory Extension to Data Generator 1 9 1 3 7 Option SMIQB14 Fading Simulator FSIM1 1 10 1 3 8 Option SMIQB15 Second Fading Simulator FSIM2 1 12 1 3 9 Option SMIQB17 Noise Generator and Distortion Simulator 1 14 1 3 10 Option SMIQB2...

Страница 25: ...ditor 2 32 2 2 12 1 Select and Generate SELECT LIST 2 33 2 2 1 2 Deletion of Lists DELETE LIST 2 34 2 2 11 3 Edition of Lists 2 35 2 2 11 4 Pattern Setting to Operate the List Editor 2 39 2 2 12 Save Recall Storing Calling of Instrument Settings 2 43 2 3 Menu Summary 2 44 2 4 RF Frequency 2 45 2 4 1 Frequency Offset 2 46 2 5 RF Level 2 47 2 5 1 Level Offset 2 49 2 5 2 Interrupt free Level Setting ...

Страница 26: ... PRBS Data and Pattern 2 94 2 10 4 Digital Data and Clock output Signals 2 95 2 10 4 1 Serial Interfaces DATA BIT CLOCK and SYMBOL CLOCK 2 95 2 10 4 2 Parallel Interfaces DATA and SYMBOL CLOCK 2 95 2 10 5 External Modulation Data and Control Signals 2 95 2 10 5 1 External Serial Modulation Data 2 96 2 10 5 2 External Parallel Modulation Data 2 97 2 10 5 3 Asynchronous Interface for External Modula...

Страница 27: ...of Channel Graph Menu 2 210 2 14 2 9 WCDMA 3GPP Menu Display of Code Domain and Code Domain Conflicts 2 211 2 14 2 10Effect of CLIPPING LEVEL Parameter on Signal 2 213 2 14 2 11Synchronization and Trigger Signals 2 215 2 14 2 12Preset Default Values 2 216 2 14 3 Background Information for the Generation of 3GPP W CDMA Signals 2 219 2 14 3 1 3GPP W CDMA Signals in Time Domain 2 219 2 14 3 2 3GPP W ...

Страница 28: ... 2 PN Generators as Internal Data Source 2 264 2 16 3 Lists as Internal Data Source 2 265 2 16 4 External Modulation Data 2 265 2 16 5 Menu DIGITAL STANDARD NADC 2 266 2 17 Digital Standard PDC 2 279 2 17 1 Sync and Trigger Signals 2 280 2 17 2 PN Generators as Internal Data Source 2 281 2 17 3 Lists as Internal Data Source 2 282 2 17 4 External Modulation Data 2 282 2 17 5 Menu DIGITAL STANDARD P...

Страница 29: ...d Related Solutions 2 377 2 23 2 Block Error Rate Measurement BLER 2 378 2 23 2 1 Operating Menu 2 378 2 23 2 2 CRC Polynomial 2 380 2 23 2 3 Measurement Result Accuracy Measurement Time 2 380 2 23 2 4 Possible BLER Measurement Problems and Solutions 2 382 2 24 Noise Generator and Distortion Simulator 2 383 2 24 1 Setting NOISE DIST Menu 2 384 2 24 2 Loading New Distortion Characteristics 2 387 2 ...

Страница 30: ...HASE 2 415 2 29 8 Password Input With Functions Protected PROTECT 2 416 2 29 9 Calibration CALIB 2 417 2 29 10 Indications of Module Variants DIAG CONFIG 2 424 2 29 11 Voltage Indication of Test Points DIAG TPOINT 2 425 2 29 12 Measurement of CARRIER NOISE RATIO DIAG C N MEAS 2 426 2 29 13 Indications of Service Data DIAG PARAM 2 427 2 29 14 Test TEST 2 427 2 29 15 Assigning Modulations to the MOD...

Страница 31: ...2 Structure of a Command 3 6 3 4 3 Structure of a Command Line 3 8 3 4 4 Responses to Queries 3 8 3 4 5 Parameter 3 9 3 4 6 Overview of Syntax Elements 3 11 3 5 Description of Commands 3 12 3 5 1 Notation 3 12 3 5 2 Common Commands 3 14 3 5 3 ABORt System 3 17 3 5 4 ARB System 3 18 3 5 4 1 ARB Waveform Format 3 23 3 5 4 2 Creating a Waveform Manually 3 25 3 5 4 3 Converting a Waveform with the App...

Страница 32: ...stem NTT DoCoMo ARIB 0 0 3 152 3 5 14 26SOURce W3GPp Subsystem 3 159 3 5 14 27SOURce W3GPp ENHanced OCNS ADDitional Subsystems 3 180 3 5 15 SOURce2 System 3 194 3 5 15 1 SOURce2 FREQuency Subsystem 3 194 3 5 15 2 SOURce2 MARKer Subsystem 3 196 3 5 15 3 SOURce2 SWEep Subsystem 3 197 3 5 16 STATus System 3 199 3 5 17 SYSTem System 3 201 3 5 18 TEST System 3 207 3 5 19 TRIGger System 3 210 3 5 20 UNI...

Страница 33: ... 4 5 Error Queue Query 3 226 3 7 5 Resetting Values of the Status Reporting Systems 3 227 3 8 Fast Restore Mode 3 228 3 8 1 Commands 3 228 3 8 2 Call Up and Termination of Operating Mode 3 229 3 8 3 Effects on Device Settings 3 229 3 8 4 Alternative Use with Other IEC IEEE Bus Commands 3 230 3 8 5 Synchronization Signal 3 230 4 Maintenance and Troubleshooting 4 2 4 1 Maintenance 4 2 4 1 1 Cleaning...

Страница 34: ...rd 5 10 5 3 2 Frequency 5 10 5 3 2 1 Frequency Setting 5 10 5 3 1 2 Settling Time 5 12 5 3 1 3 Setting Time LIST MODE 5 14 5 3 3 Reference Frequency 5 15 5 3 1 1 Output of Internal Reference 5 15 5 3 1 2 Input for External Reference 5 15 5 3 4 Level 5 15 5 3 4 1 Level Uncertainty 5 15 5 31 1 2 Output Impedance 5 17 5 3 1 3 Settling Time 5 18 5 31 1 4 Non Interrupting Level Setting ATTENUATOR MODE ...

Страница 35: ...3 Modulation Depth with ASK 5 44 5 3 14 4 Deviation Error with FSK 5 44 5 3 14 5 Deviation Error with GFSK 5 45 5 3 14 6 Phase Error with GMSK 5 45 5 3 14 7 Error Vector with PSK 5 45 5 3 14 8 Error Vector with QAM 5 45 5 3 15 Data Generator and Memory Extension Option SMIQB11 SMIQB12 5 46 5 3 15 1 Battery Test 5 46 5 3 15 2 Function Test 5 46 5 3 15 3 Interface SERDATA 5 48 5 3 15 4 Memory Test i...

Страница 36: ...ts 5 81 5 3 24 5 Signal Noise Ratio Carrier Noise Ratio 5 82 5 3 24 6 Signal Noise Ratio Carrier Noise Ratio Worldspace 5 84 5 3 24 7 Error Vector 5 84 5 3 24 8 Noise Frequency Response 5 85 5 3 25 Arbitrary Waveform Generator ARB Option SMIQB60 5 86 5 3 25 1 Frequency Response 5 86 5 3 25 2 DC Voltage Offset 5 87 5 3 25 3 Spurious Free Dynamic Range SFDR 5 87 5 3 25 4 Level Difference of Channels...

Страница 37: ... 1 Including IEC Bus Library for QuickBasic D 1 2 Initialization and Default Status D 1 2 1 Initiate Controller D 1 2 2 Initiate Instrument D 1 3 Transmission of Instrument Setting Commands D 2 4 Switchover to Manual Control D 2 5 Reading out Instrument Settings D 2 6 List Management D 3 7 Command synchronization D 3 8 Service Request D 4 10 Index ...

Страница 38: ...ing of the quaternary output sequence into the binary IQ level 2 172 Table 2 22 Hierarchical structure of 3GPP W CDMA frames 2 174 Table 2 23 Structure of the DPDCH channel table depending on the overall symbol rate 2 206 Table 2 24 Change of crest factor in the case of clipping 2 213 Table 2 25 Default values for base station parameters 2 216 Table 2 26 Default values for mobile station parameter...

Страница 39: ...nu LEVEL EMF 2 53 Fig 2 24 Example Status message EXT1 LOW in case of voltage at EXT1 too low 2 56 Fig 2 25 Example Settings of the LF generator in the AM menu 2 57 Fig 2 26 Menu ANALOG MOD AM preset setting 2 59 Fig 2 27 Menu ANALOG MOD BB AM preset setting 2 60 Fig 2 28 Menu ANALOG MOD FM preset setting fitted with option SM B5 FM PM modulator 2 61 Fig 2 29 Dependency of the FM maximal deviation...

Страница 40: ... MOD FILTER menu SMIQ equipped with option Modulation Coder SMIQB20 and option Data Generator SMIQB11 2 105 Fig 2 65 DIGITAL MOD TRIGGER menu SMIQ equipped with option Modulation Coder SMIQB20 and option Data Generator SMIQB11 2 108 Fig 2 66 DIGITAL MOD CLOCK SMIQ equipped with option Modulation Coder SMIQB20 and option Data Generator SMIQB11 2 109 Fig 2 67 DIGITAL MOD POWER RAMP CONTROL menu SMIQ...

Страница 41: ...oder SMIQB20 data generator SMIQB11 and SMIQB43 2 161 Fig 2 95 Menu DIGITAL STD WCDMA DATA equipped with options modulation coder SMIQB20 data generator SMIQB11 and SMIQB43 2 162 Fig 2 96 Menu DIGITAL STD WCDMA MODE 8CHAN LINK DIRECTION MULTIPLEX UP_IQ_MULT equipped with options modulation coder SMIQB20 data generator SMIQB11 and SMIQB43 2 164 Fig 2 98 Structure of the downlink scrambling code gen...

Страница 42: ...18 Fig 2 143 Envelope of a PRACH 2 218 Fig 2 144 Envelope of a PCPCH 2 218 Fig 2 145 Magnitude spectrum of a 3GPP W CDMA signal 2 219 Fig 2 146 Magnitude spectrum section of a 3GPP W CDMA signal with several channels 2 219 Fig 2 147 Constellation of a signal with two DPCHs uncorrelated data 2 220 Fig 2 148 Signal with two DPCHs same data in time domain 2 220 Fig 2 149 Constellation of a signal wit...

Страница 43: ...Modulation Coder SMIQB20 and Data Generator SMIQB11 2 275 Fig 2 183 Menu DIGITAL STD PDC POWER RAMP CONTROL SMIQ equipped with Modulation Coder SMIQB20 and Data Generator SMIQB11 2 276 Fig 2 184 Menu DIGITAL STD PDC SAVE RCL FRAME SMIQ equipped with Modulation Coder SMIQB20 and Data Generator SMIQB11 2 278 Fig 2 185 Menu DIGITAL STD PDC SELECT SLOT LINK DIRECTION DOWNLINK SMIQ equipped with Modula...

Страница 44: ...menu 2 329 Fig 2 212 ARB MOD SELECT WAVEFORM menu 2 331 Fig 2 213 ARB MOD WAVEFORM INFO menu 2 331 Fig 2 214 ARB MOD DELETE WAVEFORM menu 2 334 Fig 2 215 ARB MOD SET SMIQ ACCORDING TO WAVEFORM menu 2 334 Fig 2 216 ARB MOD CLOCK menu 2 336 Fig 2 217 ARB MOD IQ OUTPUT menu 2 337 Fig 2 218 Vector modulation with an external AMIQ 2 338 Fig 2 219 Menu AMIQ CTRL presetting depends on AMIQ 2 340 Fig 2 22...

Страница 45: ...399 Fig 2 259 Menu UTILITIES CALIB LFGEN 2 400 Fig 2 260 Menu UTILITIES DIAG CONFIG 2 401 Fig 2 261 Menu UTILITIES DIAG TPOINT 2 402 Fig 2 262 Menu UTILITIES DIAG C N MEAS 2 403 Fig 2 263 Menu UTILITIES DIAG PARAM 2 404 Fig 2 264 Menu UTILITIES MOD KEY preset setting 2 405 Fig 2 265 Menu UTILITIES AUX I O 2 406 Fig 2 266 Menu UTILITIES BEEPER 2 407 Fig 2 267 Menu UTILITIES INSTALL fitted with opti...

Страница 46: ... the nominal voltage set on the unit matches the nominal voltage of the AC supply network If a different voltage is to be set the power fuse of the unit may have to be changed accordingly 6 Units of protection class I with disconnectible AC supply cable and appliance connector may be operated only from a power socket with earthing contact and with the PE conductor con nected 7 It is not permissibl...

Страница 47: ...atteries are suitable for environmental ly friendly disposal or specialized recycling Dispose them into appropriate containers only Do not short circuit the battery 12 Equipment returned or sent in for repair must be packed in the original packing or in packing with electrostatic and mechanical protection 13 Electrostatics via the connectors may dama ge the equipment For the safe handling and oper...

Страница 48: ... of the Member States relating to electrical equipment for use within defined voltage limits 73 23 EEC revised by 93 68 EEC relating to electromagnetic compatibility 89 336 EEC revised by 91 263 EEC 92 31 EEC 93 68 EEC Conformity is proven by compliance with the following standards EN61010 1 1993 A2 1995 EN50081 1 1992 EN61000 6 2 1999 Affixing the EC conformity mark as from 2002 ROHDE SCHWARZ Gmb...

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Страница 50: ...by 93 68 EEC relating to electromagnetic compatibility 89 336 EEC revised by 91 263 EEC 92 31 EEC 93 68 EEC Conformity is proven by compliance with the following standards EN61010 1 1993 A2 1995 EN55011 1998 A1 1999 Klasse B EN61326 1 1997 A1 1998 For the assessment of electromagnetic compatibility the limits of radio interference for Class B equipment as well as the immunity to interference for o...

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Страница 52: ...2 BER Measurement SMIQB46 1105 0006 02 Low ACP SMIQB47 1125 5090 02 Low ACP SMIQB60 1136 4390 02 Arbitrary Waveform Generator complies with the provisions of the Directive of the Council of the European Union on the approximation of the laws of the Member States relating to electrical equipment for use within defined voltage limits 73 23 EEC revised by 93 68 EEC relating to electromagnetic compati...

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Страница 54: ...cies from 47 Hz to 440 Hz The power supply socket is situated at the rear of the instrument The instrument automatically sets itself to the voltage applied within the permissible voltage ranges It is not necessary to set the instrument to a certain supply voltage 1 1 2 Switching On Off the Instrument Power switch at the rear of the instrument Power switch Power supply socket Switch on off Press po...

Страница 55: ...equency During this period of time the output frequency does not yet reach its final value either In the status line in the header field of the display the message OVEN COLD is displayed for this time 1 1 4 Setting Contrast and Brightness of the Display Brightness control Contrast control Contrast and brightness of the display can be set by means of the contrast and brightness controls situated be...

Страница 56: ...resettings going beyond the above list can be seen from the menu representations as of Section 2 4 which each indicate the Preset setting status 1 2 Functional Test On switching on the instrument and permanently during operation the SMIQ carries out a self test The ROM contents as well as the battery of the non volatile RAM are checked on switching on the instrument and the RAM contents with every...

Страница 57: ...ore the cleared calibration values These routines are accessible via menu UTILITIES CALIB see also Chapter 2 section calibration The calibration routines have to be carried out in the following order 1 VCO SUM Summing loop 2 VECTOR MOD 3 LEV PRESET 1 3 1 Opening the Casing Caution Prior to opening the SMIQ unplug the power connector Remove paneling Remove four screws in the two tilt feet at the re...

Страница 58: ...oise generator and distortion simulator Fig 1 1 SMIQ view from the top 1 3 3 Option SM B1 Reference Oscillator OCXO Fitting the option Fasten the option at the back end of the lateral opening by means of the screw threads provided there If the two last slots are both occupied one of these modules must be removed temporarily Feed ribbon cable W710 through the rear square cut out to the motherboard ...

Страница 59: ...t may only be made after a warm up of 2 hours and against a calibrated reference Store calibration value Unlock protection level 2 with code 250751 v Call menu UTILITIES CALIB REF OSC Enter the calculated calibration voltage with CALIBRATION DATA by means of the rotary knob or keypad Select STORE CALIBRATION DATA Terminate entry using the SELECT key The new calibration value is stored in the EPROM...

Страница 60: ...Generator can be upgraded with up to two memory extension units SMIQB12 The first Memory Extension is fitted at the slot with label X350 the second Memory Extension at slot with label X351 Remove option Data Generator from SMIQ Withdraw the screws of the labelled screening cover and remove the cover The first memory extension unit has to be pluged on connector X350 near the battery The second memo...

Страница 61: ... FADED and Q FADED at the rear of SMIQ Checking the jumper Jumper Setting for the Fading Simulator FSIM1 settings Cf labeling Jumper Setting and labeling on the screening cover of the module FSIM1 One Fading Simulator installed FADING SIMULATOR 1085 XXXX Two Fading Simulators installed FADING SIMULATOR 1085 XXXX FADING SIMULATOR 1114 XXXX Jumper connects X1 1 with X1 2 X1 1 with X1 2 X1 2 with X1 ...

Страница 62: ...rom FSIM1 to to W361 X361 MCOD X325 W361 was provided with FSIM1 W244 X361 FRO I socket Withdraw W244 from X244 of module IQMOD W363 X363 MCOD X328 W363 was provided with FSIM1 W245 X363 FRO Q socket Withdraw W245 from X245 of module IQMOD W367 X367 IQMOD X244 IQMOD X244 W367 was provided with FSIM1 W388 X368 REAR I FADED REAR I FADED W388 was provided with FSIM1 W370 X370 IQMOD X245 IQMOD X245 W3...

Страница 63: ... IQ Modulator should be calibrated Checking the jumper Jumper Setting for the Fading Simulator FSIM2 settings cf module number and labeling Jumper Setting on the screening cover of the module FSIM2 FADING SIMULATOR 1085 XXXX FADING SIMULATOR 1114 XXXX Jumper connects X1 2 with X1 3 X1 1 with X1 2 X8 2 with X8 3 X8 2 with X8 3 X9 2 with X9 3 X9 1 with X9 2 X12 1 with X12 2 X12 1 with X12 2 X13 2 wi...

Страница 64: ...X367 X368 X366 W369 X370 X371 X369 Note Please store the remaining cables They will be required if further options will be installed at a later stage or options will be removed The included adhesive label Option included is to be fixed at the rear panel of the SMIQ Calibrating the Fading Simulator and the Warm up the instrument for 2 hours I Q Modulators Call up menu UTILITIES CALIB VECTOR MOD Ret...

Страница 65: ...be made SMIQ without option MCOD without option FSIM1 without option FSIM2 SMIQ with option MCOD without option FSIM1 without option FSIM2 Remark about cable Cable from NDSIM to to W244 X601 FRO I connector Cable was provided with unit W245 X602 FRO Q connector Cable was provided with unit W601 X601 MCOD X325 W601 was provided with NDSIM W602 X602 MCOD X328 W602 was provided with NDSIM W603 X603 I...

Страница 66: ... Fig 1 4 Note Please store the remaining cables They will be required if further options will be installed at a later stage or options will be removed SMIQwithoutoptionFSIM1 SMIQ with option FSIM 1 Remark about cable Cable from MCOD to to W322 X321 REFSS X72 REFSS X72 W322 was provided with MCOD W72 X322 DSYN X81 DSYN X81 Withdraw W72 from X72 of module REFSS W243 X323 BACK POW RAMP socket BACK PO...

Страница 67: ...oder Enabling the option Switch on SMIQ Call UTILITIES menu select with rotary knob confirm with SELECT key Call INSTALL menu SELECT Call OPTION TO INSTALL menu SELECT Select option SMIQB21 BERT SELECT Enter the 6 digit installation key shown on the option label into the INSTALLATION KEY line Then press the ENTER key You will receive a message confirming that the installation key has been verified...

Страница 68: ... the installation keyword to the rear panel of the SMIQ since it is required for service and repair For installation of software option SMIQB21 cf section 1 3 11 Enclosed option label with a typical keyword OPTION SMIQ B43 DIGITAL STANDARD W CDMA 1104 8032 02 INSTALLATION KEY 9 5 4 8 7 6 MADE IN GERMANY Example For a sucessful installation the necessary hardware options as well as the firmware ver...

Страница 69: ...ailable the unit has to be switched off and then on again After installation the new option is listed in the module list of the UTILITIES DIAG CONFIG menu In case of any problems contact your Rohde Schwarz service center 1 3 13 Option SMIQB19 Rear Panel Connections for RF and LF The SMIQ can be retrofitted to include rear panel connections for RF and LF for mounting it into a 19 rack using option ...

Страница 70: ...EXT1 EXT2 1 000 0 kHz 10 0 kHz OFF EXT1 EXT2 AC DC AC DC OFF 50µ 75µ s FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES The display shows in the header field the current frequency and level settings considering an offset status messages error messages menu field the main menu and the submenus selected with the current settings Parameters can be s...

Страница 71: ...RIATION SELECT ï ð 5 6 7 8 9 4 3 2 1 MAX 50 W REVERSE POWER MADE IN GERMANY RETURN BB AM I OPERATING Move cursor SELECT Next menu RETURN Previous menu VERSION 1 33 FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES FREQ 100 000 000 0 MHz LEVEL 30 0 dBm LOCAL HELP ERROR PRESET STATUS ASSIGN MENU2 MENU1 STBY ON QUICK SELECT RF ON OFF MOD ON OFF Fig 2...

Страница 72: ...or variation by means of a rotary knob The current menu is maintained Return to the menu by means of the RETURN key Setting of the RF level also in the LEVEL menu SAVE Opens the storing of the current instrument setting Memory selection is effected by entering a number 1 to 50 and is finished by means of the ENTER key RCL Opens the calling of an instrument setting stored Memory selection is effect...

Страница 73: ...RIATION SELECT ï ð 5 6 7 8 9 4 3 2 1 MAX 50 W REVERSE POWER MADE IN GERMANY RETURN BB AM I OPERATING Move cursor SELECT Next menu RETURN Previous menu VERSION 1 33 FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES FREQ 100 000 000 0 MHz LEVEL 30 0 dBm LOCAL HELP ERROR PRESET STATUS ASSIGN MENU2 MENU1 STBY ON QUICK SELECT RF ON OFF MOD ON OFF Fig 2...

Страница 74: ...set and level step width dB In order to change to another level unit simply press the unit key desired Parameter LEVEL must be activated e g by pressing the LEVEL key see as well Chapter 2 Section Basic Operating Steps Section Change Unit of Level 3 MENU VARIATION Menu keys SELECT RETURN ï ð The menu keys access the menus and settings within the menus RETURN Returns the menu cursor to the next hig...

Страница 75: ...RIATION SELECT ï ð 5 6 7 8 9 4 3 2 1 MAX 50 W REVERSE POWER MADE IN GERMANY RETURN BB AM I OPERATING Move cursor SELECT Next menu RETURN Previous menu VERSION 1 33 FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES FREQ 100 000 000 0 MHz LEVEL 30 0 dBm LOCAL HELP ERROR PRESET STATUS ASSIGN MENU2 MENU1 STBY ON QUICK SELECT RF ON OFF MOD ON OFF Fig 2...

Страница 76: ... Input external clock pulse signal for synchronization of external data signal Input resistance 1 kΩ or 50 Ω Trigger threshold can be set from 2 5 to 2 5 V max 15 V max 40 mA Output clock pulse signal with operating mode internal Level TTL SYMBOL CLOCK SYMBOL CLOCK Input external clock signal for synchronization of the external data signal with polyvalent modulation types with several bits per sym...

Страница 77: ...RIATION SELECT ï ð 5 6 7 8 9 4 3 2 1 MAX 50 W REVERSE POWER MADE IN GERMANY RETURN BB AM I OPERATING Move cursor SELECT Next menu RETURN Previous menu VERSION 1 33 FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES FREQ 100 000 000 0 MHz LEVEL 30 0 dBm LOCAL HELP ERROR PRESET STATUS ASSIGN MENU2 MENU1 STBY ON QUICK SELECT RF ON OFF MOD ON OFF Fig 2...

Страница 78: ...0FF MOD Switches on off the modulation ON OFF selected in the UTILITIES MOD KEY menu RF Switches on off the RF signal ON OFF See as well Chapter 2 Section Use of RF ON OFF and MOD ON OFF Keys 6 LOCAL HELP STA TUS ERROR PRESET PRESET Establishes a defined instrument status ERROR Indicates error and caution messages STATUS Indicates the instrument status HELP Indicates context sensitive auxiliary te...

Страница 79: ...RIATION SELECT ï ð 5 6 7 8 9 4 3 2 1 MAX 50 W REVERSE POWER MADE IN GERMANY RETURN BB AM I OPERATING Move cursor SELECT Next menu RETURN Previous menu VERSION 1 33 FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES FREQ 100 000 000 0 MHz LEVEL 30 0 dBm LOCAL HELP ERROR PRESET STATUS ASSIGN MENU2 MENU1 STBY ON QUICK SELECT RF ON OFF MOD ON OFF Fig 2...

Страница 80: ... when the MENU1 key is pressed afterwards or as menu2 when the MENU2 key is pressed afterwards MENU1 Activates menu1 stored MENU2 Activates menu2 stored See as well Chapter 2 Section Basic Operating Steps 9 Switching On Off STBY ON The On Off switch switches the instrument from the standby mode to the ready for operation status Prerequisite The power switch at the rear of the instrument must be sw...

Страница 81: ...12 10 11 21 20 19 18 17 16 15 14 625 PAR DATA POW RAMP SYM CLK IEEE 488 X A X IS MARKER BLANK I F A D E D I Q AUX Q FADED L F EXT 2 EXT 1 P U L S EXTTUNE TRIGGER RF REF RS 232 SER DATA BIT CLK DATA Q I BB AM 11 REF BER Fig 2 2 Rear panel view ...

Страница 82: ...ial BNC connectors is available as an accessory SMIQ Z5 order no 1104 8555 02 PAR DATA Pin Description 1 2 Ground Ground 3 DATA D6 4 DATA D4 5 DATA D2 6 DATA D0 Parallel data input output D0 to D6 for digital modulation Output TTL signal Input Input resistance 1kΩ or 50Ω Trigger threshold can be set from 2 5 to 2 5V max 15V max 40 mA 7 SYMBCLK Symbol clock input output for synchronization of the d...

Страница 83: ...12 10 11 21 20 19 18 17 16 15 14 625 PAR DATA POW RAMP SYM CLK IEEE 488 X A X IS MARKER BLANK I F A D E D I Q AUX Q FADED L F EXT 2 EXT 1 P U L S EXTTUNE TRIGGER RF REF RS 232 SER DATA BIT CLK DATA Q I BB AM 11 REF BER Fig 2 2 Rear panel view ...

Страница 84: ...put D1to D7 see pin 3 6 19 Ground 20 BITCLK Output bit clock with operating mode internal TTL signal 21 CW Signal input output for controlling of modulation Switches carrier to CW with FSK modulation Output TTL signal Input input resistance 1kΩ or 50Ω Trigger threshold can be set from 2 5 to 2 5V max 15V max 40 mA 22 BURST GATE Signal input output for controlling of the burst profile Output TTL si...

Страница 85: ...12 10 11 21 20 19 18 17 16 15 14 625 PAR DATA POW RAMP SYM CLK IEEE 488 X A X IS MARKER BLANK I F A D E D I Q AUX Q FADED L F EXT 2 EXT 1 P U L S EXTTUNE TRIGGER RF REF RS 232 SER DATA BIT CLK DATA Q I BB AM 11 REF BER Fig 2 2 Rear panel view ...

Страница 86: ...envelope modulation Input resistance 10kΩ Max permissible overvoltage 15 V Output provides modulation voltage of burst envelope with internal modulation output resistance 10Ω Max permissible overvoltage 15 V Q I BB_AM I BB AM Cut out provided to relocate the I input at the front to the rear of the instrument Q Cut out provided to relocate the Q input at the front to the rear of the instrument 13 P...

Страница 87: ...12 10 11 21 20 19 18 17 16 15 14 625 PAR DATA POW RAMP SYM CLK IEEE 488 X A X IS MARKER BLANK I F A D E D I Q AUX Q FADED L F EXT 2 EXT 1 P U L S EXTTUNE TRIGGER RF REF RS 232 SER DATA BIT CLK DATA Q I BB AM 11 REF BER Fig 2 2 Rear panel view ...

Страница 88: ...apter 3 Remote Control and Annex A Interfaces 17 IEC625 IEEE488 IEC 625 IEC Bus IEEE 488 IEEE 488 Remote control interface See as well Chapter 3 Remote Control 18 REF REF Output of the internal 10 MHz reference signal with reference internal Source resistance 50 Ω Input for external reference frequency with reference external Adjustable to external reference frequencies from 1 to 16 MHz in 1 MHz s...

Страница 89: ...12 10 11 21 20 19 18 17 16 15 14 625 PAR DATA POW RAMP SYM CLK IEEE 488 X A X IS MARKER BLANK I F A D E D I Q AUX Q FADED L F EXT 2 EXT 1 P U L S EXTTUNE TRIGGER RF REF RS 232 SER DATA BIT CLK DATA Q I BB AM 11 REF BER Fig 2 2 Rear panel view ...

Страница 90: ...stance 100 kΩ Nominal voltage Us 1 V Max permissible overvoltage 15 V X AXIS X AXIS Output supplies a voltage ramp of 0 to 10 V when a sweep is switched on BLANK BLANK Output supplies a signal to blank the return sweep or the settling process in LIST mode Level TTL MARKER MARKER Output is active when the sweep reaches the marker or at the first step of the LIST mode Level TTL PULS PULS Input for p...

Страница 91: ... INT EXT1 EXT2 1 000 0 kHz 10 0 kHz OFF EXT1 EXT2 AC DC AC DC OFF 50µ 75µ s 1 2 3 Main menu Submenu Setting menu 1 Header field 2 Status line 3 Menu fields Menu cursor Digit cursor Select mark FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES Fig 2 3 Design of the display Header field 1 The header field of the display indicates frequency and level...

Страница 92: ...m marks current menus or valid settings in the setting menu 2 2 2 Calling the Menus Accessing the menus is effected using rotary knob VARIATION SELECT key and RETURN key Rotary knob Rotary knob VARIATION moves the menu cursor over the positions of a menu level to be selected If a scrollbar is visible at the left hand margin of a menu the menu is larger than the screen window If the menu cursor is ...

Страница 93: ... value to be varied using keys ð ï Ø Turn the rotary knob The position underscored is varied in steps of 1 Note RF frequency and RF level can also be varied in a step width which can be defined arbitrarily using the rotary knob In the respective setting menu FREQUENCY or LEVEL the step width is entered as KNOB STEP USER and the KNOB STEP set from DECIMAL to USER To point to the fact that the step ...

Страница 94: ...e carried out Instruction SEARCH ONCE in the LEVEL ALC menu e g switches on level control for level calibration for a short period of time Trigger action Ø Set the menu cursor to the respective instruction Ø Press the SELECT key The action is triggered While the action is carried out the instruction remains framed by the selection mark 2 2 5 Quick Selection of Menu QUICK SELECT The keys of the QUI...

Страница 95: ...s RF ON OFF key and MOD ON OFF key as well Key RF ON OFF Ø Press the RF ON OFF key The RF output signal is switched on off IEC bus short command OUTP OFF Key MOD ON OFF Ø Press the MOD ON OFF key The modulation is switched on off An IEC bus command is not available The modulations have to be switched on and off in the respective modulation sub menus 2 2 8 ENTER Key Special Toggle Function This add...

Страница 96: ...d again Key FREQ LEVEL In the case of a frequency or level input by means of the FREQ or LEVEL keys pressing the FREQ and or LEVEL key again deletes the entire input 2 2 11 Sample Setting for First Users First users most quickly become familiar with the operation of the instrument if they execute the pattern setting of this section First frequency and level of the RF output signal are set via keys...

Страница 97: ...sing the rotary knob and subsequently press SELECT key The submenu is displayed AM MENU VARIATION SELECT MENU VARIATION Select AM submenu The AM setting menu is displayed AM DEPTH MENU VARIATION Select AM DEPTH parameter The menu cursor marks the setting value DATA INPUT x1 ENTER 1 5 5 Enter modulation depth 15 5 and press x1 ENTER The menu cursor is reset to AM DEPTH AM SOURCE INT MENU VARIATION ...

Страница 98: ... FREQ MENU VARIATION Select parameter LFGEN FREQ DATA INPUT 3 k m Enter frequency 3 kHz and press unit key The indications on the display are represented in Fig 2 5 The AM modulation setting is completed AM DEPTH AM SOURCE INT AM SOURCE EXT AM EXT COUPLINGLFGEN FREQ FREQ 250 000 000 0 MHz LEVEL 10 0 dBm AM 15 5 OFF INT OFF EXT1 AC DC 3 000 0 kHz FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DI...

Страница 99: ...ting steps Explanations RETURN RETURN Reset the menu cursor to the main menu in 2 steps SELECT FREQUENCY MENU VARIATION MENU VARIATION Select FREQUENCY menu The frequency setting menu is displayed FREQUENCY MENU VARIATION Select FREQUENCY parameter The menu cursor marks the setting value 2 0 4 M µ DATA INPUT Enter frequency 420 MHz and press unit key KNOB STEP USER MENU VARIATION Set menu cursor t...

Страница 100: ... selection mark marks USER This results in step width 12 5 kHz being used in the case of variation using the rotary knob RETURN RETURN Reset the menu cursor to the main menu in 2 steps FREQUENCY OFFSET KNOB STEP USER KNOB STEP EXCLUDE FROM RCL ON OFF FREQ 420 000 000 0 MHz LEVEL 10 0 dBm AM 420 000 000 0 MHz 0 0 Hz 12 500 0 kHz DECIMAL USER FREQUENCY FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL M...

Страница 101: ...the general list functions such as selecting and deleting the list as well as calling an editing mode are provided The second page the EDIT page is automatically displayed when calling an edit function and serves to enter and modify the parameters of the list The OPERATION page has a similar arrangement with all list editors As an example the OPERATION page of the MEM SEQ menu is shown Menu select...

Страница 102: ...changing the setting Select list Ø Mark the list desired using the rotary knob Ø Press SELECT key The selected list is included in the instrument setting The selection window is closed The selected list is displayed under CURRENT Generate list Ø Mark CREATE NEW LIST using rotary knob Ø Press SELECT key A new empty list is automatically generated which can be filled using functions FILL or EDIT The...

Страница 103: ...s 2 2 12 2 Deletion of Lists DELETE LIST DELETE LIST opens a selection window in which the list to be deleted can be selected The lists are represented together with their name and their length cf Fig 2 9 By pressing the RETURN key the selection window is exited without deleting a list Delete list Ø Mark desired list using the rotary knob Ø Press SELECT key The prompt enter SELECT to delete list s...

Страница 104: ...he menu cursor then marks FUNCTION again There is no separate function for storing the list This means that every modification of the list is transferred to the internal data set and has an effect on exiting the EDIT VIEW function Menu selection FUNCTION EDIT VIEW DELETE FREQ 100 000 000 0 MHz LEVEL 30 0 dBm INSERT FILL EDIT VIEW FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUT...

Страница 105: ...nu cursor wraps back to the INDEX column The EDIT mode is exited by repeatedly pressing the RETURN key cf Section 2 2 11 4 Block function FILL Using function FILL a parameter e g MEMORY is overwritten with constant or linearly increasing decreasing values within a defined range The input window is exited by pressing the RETURN key without a modification being carried out If the filler range exceed...

Страница 106: ...the first element after the processed range Filling a list After selection of function FILL the menu cursor marks FILL AT Ø Press the SELECT key The menu cursor marks the value at AT Ø Vary index value using the rotary knob or enter using the numeric keys and the ENTER key Ø Press the SELECT key The menu cursor marks the value at RANGE Ø Vary value using the rotary knob or enter using the numeric ...

Страница 107: ... 2 MEMORY 1 WITH INCREMENT 0 DWELL 100ms WITH INCREMENT 0 0ms EXECUTE FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES Fig 2 12 Edit function INSERT Input window INSERT AT Input of the starting index and the number of the elements to be inserted AT Starting index before which the insert operation is to be effective RANGE Number of the elements to...

Страница 108: ... LF OUTPUT SWEEP LIST MEM SEQ UTILITIES Fig 2 13 Edit function DELETE Input window DELETE AT Input of the block of the list to be deleted AT Lower limit INDEX RANGE Number of elements to be deleted EXECUTE Starts the deletion After the function has been executed the input window is automatically exited The menu cursor marks FUNCTION The EDIT page shows the beginning of the range that has moved for...

Страница 109: ...E CURRENT INDEX 1 SELECT LIST CURRENT NONE DELETE LIST FUNCTION FILL INSERT DELETE EDIT VIEW FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES Fig 2 14 Starting point of the pattern setting Operating steps Explanations SELECT SELECT LIST MENU VARIATION MENU VARIATION Select the SELECT LIST menu item SELECT CREATE NEW LIST MENU VARIATION MENU VARIA...

Страница 110: ...ms DATA INPUT x1 ENTER 5 1 Enter DWELL 15 s The menu cursor automatically wraps to the MEMORY value of the second element DATA INPUT x1 ENTER 7 Enter MEMORY 7 The menu cursor automatically wraps to the DWELL value of the second element default value is 100 ms RETURN Reset the menu cursor to the index RETURN Reset the menu cursor to the FUNCTION menu item of the EDIT page of menu MEM SEQ c f Fig 2 ...

Страница 111: ...VEL 30 0 dBm INSERT FILL EDIT VIEW SELECT LIST FUNCTION INDEX FREE 0246 LEN 0010 MEMORY DWELL 0001 20 15 00 s 0002 07 100 ms 0003 A B C EDIT VIEW FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DI...

Страница 112: ...the saved RF frequency and RF level are loaded when an instrument setting is loaded or whether the current settings are maintained Store IEC bus command SAV 12 Recall IEC bus command RCL 12 Notes The contents of lists as they are used for the Memory Sequence MSEQ or for user correction UCOR is not saved in the SAVE memory It is stored under the respective list name and can be called If instrument ...

Страница 113: ...P GPIB RS232 SECURITY LANGUAGE CONFIG TPOINT PARAM VCO SUM VECTOR MOD LEV PRESET REF OSC L ALC TABLE LEV ATT LFGEN EVEL option SM B5 option SM B5 VECTOR MOD DIGITAL STD FADING SIM options SMIQB14 SMIQB15 and SMIQB49 options SMIQB20 SMIQB11 and SMIQB12 options SMIQB20 SMIQB11 SMIQB12 and digital standards incl options SMIQB43 SMIQB45 and SMIQB48 can be equipped with option SMIQB47 NOISE DIST option...

Страница 114: ...QUENCY FREQUENCY OFFSET KNOB STEP USER KNOB STEP EXCLUDE FROM RCL 100 000 000 0 MHz 0 0 Hz FREQ 100 000 000 0 MHz LEVEL 30 0 dBm 1 000 000 0 MHz DECIMAL USER ON OFF FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES Fig 2 16 Menu FREQUENCY preset setting FREQUENCY Input value of the RF frequency at the RF output connector IEC IEEE bus command SOUR ...

Страница 115: ...cy value of the RF signal at the output of these instruments cf Fig 2 17 The entry values FREQUENCY and OFFSET in the menu FREQUENCY or FREQ in the header line are related to the RF output frequency as follows FREQ OFFSET output frequency FREQUENCY An offset entry causes no modification of the RF output frequency but only a modification of the display value in the FREQ field in the header line ie ...

Страница 116: ...s the possibility of entering the desired level at the output of series connected instruments the SMIQ then alters the RF output level correspondingly The offset can also be entered in the LEVEL LEVEL menu dBm dBµV mV and µV can be used as level units The 4 unit keys are directly labeled with these units In order to change to another level unit simply press the desired unit key Notes The message E...

Страница 117: ...hat over 90 dB with out switching the attenuator see section 2 5 2 Non interrupting Level Setting The range of variation is fixed automatically upon selection of this operating mode The range is indicated in the ATTEN FIXED RANGE menu With level settings out of the indicated range a warning is displayed This function is only available if the IQMOD module of version VAR 4 or higher is installed ind...

Страница 118: ...he output of the series connected instrument cf Fig 2 19 The entry values AMPLITUDE and OFFSET in the menu LEVEL or LEVEL in the header line are related to the RF output level as follows LEVEL OFFSET output level AMPLITUDE An offset entry causes no modification of the RF output frequency but only a modification of the display value in the LEVEL field in the header line ie LEVEL in the header line ...

Страница 119: ...ction 2 5 3 Switching On Off Internal Level Control The LEVEL ALC menu allows the level control to be switched on and off for special applications In the normal operating mode for CW AM and FM PM level control is switched on so that an optimum level accuracy is obtained For vector modulation or digital modulation level control must normally be off In this case the SAMPLE HOLD or the TABLE mode can...

Страница 120: ...ng conditions IEC IEEE bus command SOUR POW ALC AUTO ON Internal level control is permanently switched on IEC IEEE bus command SOUR POW ALC ON ALC OFF MODE SAMPLE HOLD Level recalibration in the ALC OFF mode after the level or frequency has been set IEC IEEE bus command SOUR POW ALC SEAR ON TABLE In the ALC OFF mode correction values are taken from a table IEC IEEE bus command SOUR POW ALC SEAR OF...

Страница 121: ... and OFFSET of the menu LEVEL AMPLITUDE OFFSET LEVEL The user correction is effective in all operating modes if switched on Menu selection LEVEL UCOR LEVEL ALC UCOR EMF STATE SELECT LIST CURRENT UCOR1 DELETE LIST FUNCTION FILL INSERT DELETE EDIT VIEW FREQ 100 000 000 0 MHz LEVEL 27 0 dBm UCOR 1 9 dB OFF ON FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ U...

Страница 122: ...QUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES Fig 2 22 Menu UCOR LEVEL EDIT side 2 5 5 EMF The signal level can also be set and indicated as the voltage of EMF open circuit voltage EMF is displayed in the header field of the display after the unit of the level indication Menu selection LEVEL EMF LEVEL ALC UCOR EMF STATE FREQ 100 000 000 0 MHz LEV...

Страница 123: ...yed the 50 Ω source resistance is maintained IEC IEEE bus command OUTP OFF 2 5 7 Reset Overload Protection The SMIQ is protected against overload by an external signal which is fed into the RF output If an external signal is too high the overload protection responds This state is indicated by means of the message RF OFF in the LEVEL indication in the header field and the message OVERLOAD in the st...

Страница 124: ... can be used 2 6 1 Modulation Sources Internal Modulation Sources The internal modulation generator LF GEN is available for AM FM and PM The generator supplies sinusoidal signals in the frequency range from 0 1 Hz to 1 MHz For a more detailed description cf Section LF Generator The internal modulation coder option SMIQB20 supplies PRBS signals clock signals or modulation data for the digital modul...

Страница 125: ...high EXT1 LOW Voltage at EXT1 too low EXT2 HIGH Voltage at EXT2 too high EXT2 LOW Voltage at EXT2 too low EXT HI HI Voltage at EXT1 and EXT2 too high EXT LO LO Voltage at EXT1 and EXT2 too low EXT HI LO Voltage at EXT1 too high and EXT2 too low EXT LO HI Voltage at EXT1 too low and EXT2 too high FREQ 250 000 000 0 MHz LEVEL 10 0 dBm AM 30 0 OFF INT OFF EXT1 AC DC 1 000 0 kHz FREQUENCY LEVEL ANALOG...

Страница 126: ...D LF OUTPUT SWEEP LIST MEM SEQ UTILITIES AM BB AM FM PM PULSE Fig 2 25 Example Settings of the LF generator in the AM menu 2 6 3 Simultaneous Modulation Combination of AM and FM as well as AM and vector modulation is possible Instead of FM phase modulation PM can be switched on as well Two tone AM is possible by simultaneously switching on the external and internal source Two tone FM or two tone P...

Страница 127: ...ation the MOD ON OFF key is effective is made in the UTILITIES MOD KEY menu cf Section Assigning Modulation to MOD ON OFF Key When selecting a certain type of modulation each pressing the MOD ON OFF key switches on or off the modulation selected In the case of selection all modulations the MOD ON OFF key has the following effect At least one modulation is active Pressing the MOD ON OFF key switche...

Страница 128: ...S AM BB AM FM PM PULSE AM DEPTH AM SOURCE INT AM SOURCE EXT AM EXT COUPLING LFGEN FREQ 30 0 OFF INT OFF EXT1 AC DC 1 000 0 kHz Fig 2 26 Menu ANALOG MOD AM preset setting AM DEPTH Input value of the modulation depth IEC IEEE bus command SOUR AM 30PCT AM SOURCE INT Selection of the internal source IEC IEEE bus command SOUR AM SOUR INT1 STAT ON AM SOURCE EXT Selection of the external source IEC IEEE ...

Страница 129: ...M the value for the upper level limit is the same as for vector modulation Depending on the modulation depth PEP can exceed the displayed value by up to 6 dB Broadband AM cannot be selected together with normal AM or vector modulation These modulation deactivate one another Menu selection ANALOG MOD BB AM FREQ 100 000 000 0 MHz LEVEL 30 0 dBm FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGIT...

Страница 130: ...SM B5 FM PM modulator FM1 DEVIATION Input value of the deviation for FM1 IEC IEEE bus command SOUR FM1 10kHz FM1 SOURCE Switching on and off FM1 and selection of the modulation source IEC IEEE bus command SOUR FM1 SOUR INT STAT ON LFGEN FREQ Input value of the frequency of the LF generator EC bus short command SOUR FM1 INT FREQ 1kHz FM2 DEVIATION Input value of the deviation for FM2 EC bus short c...

Страница 131: ...s smaller than 500 kHz or 1000 kHz the synthesizer is in the normal mode with optimal spectral purity If the deviation set is larger the I Q mode is automatically selected 2000 1000 500 0 3 450 750 1200 1500 3300 I Q mode maximal FM deviation kHz RF frequency MHz normal mode Fig 2 29 Dependency of the FM maximal deviation on the RF frequency set 2 7 3 2 Preemphasis Preemphasis results in a preemph...

Страница 132: ...h option SM B5 FM PM modulator PM1 DEVIATION Input value of the deviation for PM1 IEC IEEE bus command SOUR PM1 1RAD PM1 SOURCE Switching on and off PM1 and selection of the modulation source IEC IEEE bus command SOUR PM1 SOUR INT STAT ON LFGEN1 FREQ Input value of the frequency of the LF generator IEC IEEE bus command SOUR PM1 INT FREQ 1kHz PM2 DEVIATION Input value of the deviation for PM2 IEC I...

Страница 133: ...ible deviation is set and an error message displayed In the RF range 450 to 750 MHz and 1200 MHz to 1500 MHz a different synthesis range is selected depending on the deviation set If the deviation is smaller than 5 rad or 10 rad the synthesizer is in the normal mode with optimal spectral purity If the deviation set is larger the I Q mode is automatically selected 20 10 5 0 3 450 750 1200 1500 3300...

Страница 134: ...0 000 0 MHz LEVEL 30 0 dBm FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES AM BB AM FM PM PULSE SOURCE POLARITY OFF EXT NORM INV Fig 2 32 Menu MODULATION PULSE preset setting fitted with option SM B3 pulse modulator and option SM B4 pulse generator SOURCE Switching on or off the external pulse modulation IEC IEEE bus command SOUR PULM SOUR EXT S...

Страница 135: ...ever exceeds 0 5 V when digital modulation modes with amplitude modulation components such as QPSK are used For full scale input the peak envelope power of the modulated RF signal is thus equal to the indicated LEVEL The average power is smaller The difference can be entered as an offset in the LEVEL menu Vector modulation settings are accessible in the VECTOR MOD menu see following page Note Type...

Страница 136: ...LANCE Value entered for imbalanced modulation of I and Q vectors IEC IEEE bus command SOUR DM IQR 5PCT QUADRATURE OFFSET Value entered for quadrature offset IEC IEEE bus command SOUR DM QUAD ANGL 4DEG IQ SWAP Selection between normal and inverted I Q modulation Interchanging the I and Q signals inverts the modulation sidebands OFF Normal I Q modulation ON I and Q signals interchanged IEC IEEE bus ...

Страница 137: ... W CDMA The frequency response of the filter is automatically compensated for DIGITAL MOD and DIGITAL STD in MCOD which means that the EVM Error Vector Magnitude gets hardly worse For VECTOR MOD and AMIQ with WinIQSIM as source the frequency response is also compensated in WinIQSIM For applications requiring a minimum EVM the IQ filter should be set to OFF OFF no filter 850 kHz 850 kHz lowpass 2 5...

Страница 138: ...adrature offset can be entered The input values for LEAKAGE and IMBALANCE are with reference to the voltage Table 2 3 Parameter setting ranges Parameter Setting range Resolution LEAKAGE 0 50 0 5 IMBALANCE 12 12 0 1 QUADRATURE OFFSET 10 10 0 1 The following figure shows the effect of I Q impairment I Q Carrier Leakage LEAKAGE I Q IMBALANCE I Q QUADRATURE OFFSET Fig 2 35 Effect of I Q impairment ...

Страница 139: ... to the RF SMIQ can also be equipped with two Fading Simulators SMIQB14 and SMIQB15 The second fading option provides another 6 transmission paths If only one fading simulator is built in output signals I and Q are available at the I FADED and Q FADED connectors If two fading simulators are built in the sum signal of the two fading options with 12 fading paths are available at the I FADED and Q FA...

Страница 140: ...ng For two channel fading an SMIQ with two fading options SMIQB14 and SMIQB15 and a second SMIQ without fading options is required Moreover the SMIQ has to be recabled internally see description in Chapter 1 Section Option SMIQB15 Second Fading Simulator After reconnecting the internal cables the I Q baseband signals of the second channel SMIQB15 are available at connectors I FADED and Q FADED on ...

Страница 141: ...rmal fading have to correspond for correlated paths All parameter adaptations due to the limitations mentioned before are automatically performed by SMIQ Note After setting all parameters the two fading options have to be synchronized by RESET and then by RUN 2 9 4 Menu FADING SIM Fig 2 38 Menu FADING SIM with submenus FADING SIM Selection of fading simulator mode STANDARD FAD Normal mode with 6 p...

Страница 142: ... SMIQB15 IEC IEEE bus command SOUR FSIM CONF S12P SOUR FSIM ON MODE Stopping STOP and starting RUN the fading process Following RESET the mode RUN starts the Pseudo Noise Generator at a defined starting point for generating the fading process IEC IEEE bus command SOUR FSIM SEQ RUN RESET Resetting the Pseudo Noise Generator If RESET is set the parameter MODE is automatically set to STOP RESET also ...

Страница 143: ...be chosen for measurements which involve an adjacent channel interfering signal generated by the SMIQ IEC IEEE bus command SOUR FSIM ILOS MODE LACP SHOW PATHS Switching from the display of paths 1 to 6 to the display of paths 7 to 12 COUPLED PARAMETERS In this submenu parameters SPEED COEFF LOCAL CONST and STD DEV can be coupled via the ON setting If one of these parameters is modified afterwards ...

Страница 144: ...ding spectrum is a classical Doppler spectrum IEC IEEE bus command SOUR FSIM PATH1 PROF RAYL RICE Simulation of a radio field where apart from a multitude of scattered partial waves one strong direct wave discrete component hits upon a moving receiver The probability density function of the receiving amplitude is described by a Rice distribution The fading spectrum of an unmodulated signal is an o...

Страница 145: ...v of the moving receiver The Doppler frequency fD DOPPLER FREQ is calculated from the speed and the RF frequency fRF When changing SPEED the parameter DOPPLER FREQ will be automatically adjusted This parameter can be coupled see parameter COUPLED PARAMETERS Range v m s fRF min 0 03 109 2 v m s fRF max 479 109 2 h km 99999 vmax IEC IEEE bus command SOUR FSIM PATH1 SPE 100 DOPPLER FREQ Input value o...

Страница 146: ...ed Log Normal Fading has a multiplying effect on the path loss The multiplication factor is time varying and logarithmically normally distributed If a Rayleigh profile is set simultaneously this results in Suzuki Fading IEC IEEE bus command SOUR FSIM PATH6 LOGN STAT ON LOCAL CONST Input value of the area constant L This parameter can be coupled see parameter COUPLED PARAMETERS The area constant L ...

Страница 147: ...tions below 5 are ignored Frequency hopping is thus faster than 3 ms IEC IEEE bus command SOUR FSIM IGN RFCH ON STANDARD Opens a window for selecting a defined setting of fading paths Selection 3GPP_BS__4 1 0_CASE1 SPEED 3 km h Pfad 1 DELAY 25 ns PATH LOSS 0 dB Pfad 2 DELAY 1001 ns PATH LOSS 10 dB 3GPP_BS_4 1 0_CASE2 SPEED 3km h Pfad 1 DELAY 25 ns PATH LOSS 0 dB Pfad 2 DELAY 1001 ns PATH LOSS 0 dB...

Страница 148: ... ns PATH LOSS 0 dB Pfad 3 DELAY 20025 ns PATH LOSS 0 dB 3GPP_UE_4 1 0_CASE3 SPEED 120km h Pfad 1 DELAY 25 ns PATH LOSS 0 dB Pfad 2 DELAY 285 ns PATH LOSS 3 dB Pfad 3 DELAY 546 ns PATH LOSS 6 dB Pfad 4 DELAY 806 ns PATH LOSS 9 dB 3GPP_UE_4 1 0_CASE4 SPEED 3km h Pfad 1 DELAY 25 ns PATH LOSS 0 dB Pfad 2 DELAY 1001 ns PATH LOSS 0 dB 3GPP_UE_4 1 0_CASE5 SPEED 50km h Pfad 1 DELAY 25 ns PATH LOSS 0 dB Pf...

Страница 149: ...gle function IEC IEEE bus command SOUR FSIM FDEL PATH2 STAT ON OFF PROFILE Selection of a fading profile See explanations under Standard Fading Only the following setting is possible pDOPP IEC IEEE bus command SOUR FSIM FDEL PATH2 PROF PDOP RAYL This setting is provided in the 3GPP test cases IEC IEEE bus command SOUR FSIM FDEL PATH2 PROF RAYL FREQ RATIO Entry value of the ratio of the actual Dopp...

Страница 150: ...he following equation ø ö ç ç è æ ø ö ç ç è æ PERIOD _ VARIATION t 2 sin 1 2 VARIATION _ DELAY MEAN _ DELAY π τ The following settings are required to obtain the values suggested in Annex B3 DELAY path 1 1µs DELAY MEAN DELAY path 1 DELAY VARIATION 2 3 5µs DELAY VARIATION 5 µs VARIATION PERIOD 157 s For further tests DELAY MEAN and the variation parameters can be modified The two paths can be level...

Страница 151: ...L REF DEL 14 5E 6 PATH LOSS Entry value of attenuation in path for moving Value range 0 0 to 50 0 dB IEC IEEE bus command SOUR FSIM MDEL MOV LOSS 3 DELAY MEAN Mean value of the moving path delay See explanation above Value range 0 25 to 1637 8 µs IEC IEEE bus command SOUR FSIM MDEL MOV DEL MEAN 12 5E 6 DELAY VARIATION PK PK Range for delay variation for the moving path The peak peak value is set S...

Страница 152: ...etc The two paths never appear at the same time position see Fig 2 44 According to Annex B4 each path has the same attenuation and phase and no Doppler shift However this can be set in the menu BIRTH DEATH for further tests The dwell period of 191 ms in line with 3GPP can be varied between 100 ms and 5 s 0 1 2 3 4 5 1 2 3 4 5 0 1 2 3 4 5 1 2 3 4 5 0 1 2 3 4 5 1 2 3 4 5 P1 P2 P1 P1 P2 P1 P2 P2 Fig ...

Страница 153: ...IM BIRT PATH1 FRAT 1 SPEED Entry value of the speed v of the moving receiver See explanations under STANDARD FADING All entries in path 1 are copied for path 2 IEC IEEE bus command SOUR FSIM BIRT PATH1 SPE 100 DOPPLER FREQ Entry value of the magnitude of the maximum Doppler frequency shift See explanation under STANDARD FADING All entries in path 1 are copied for path 2 IEC IEEE bus command SOUR F...

Страница 154: ...YMBOL RATE 1 000 000 sym s Fading Simulation MOVING DELAY ON Reference Path Path Loss 0 dB Delay 0 µs Moving Path Path Loss 6 0 dB Delay Mean 5 0 µs Delay Variation 5 0 µs Variation Period 10 0 s Settings on the oscilloscope BW 100 MHz Vertical 50 mV div at 50 Ω Horizontal 2 µs div Trigger level 100 mV The test result shows a high pulse about 150 mV and next to it a pulse which is half as high and...

Страница 155: ...th digital input signals such as clock signals symbol clock bit clock modulation data or modulation symbols control signals for envelope control and trigger signals The digital input signals may originate from the following sources The modulation coder can generate clock signals such as PRBS data signals and simple data patterns External clock signals modulation data and signals for envelope contr...

Страница 156: ... 1 PSK and QAM Modulation PSK and QAM modulations can be explained on the basis of a rule of assignment mapping according to which each modulation symbol is represented by I and Q values as shown in the following IQ constellation diagrams The constellation diagrams apply if no coding is switched on I Q 0 1 I Q 00 01 10 11 I Q 0000 0001 0011 0010 1010 1000 1001 1011 0101 0111 0110 0100 1111 1110 11...

Страница 157: ...the same time a constellation diagram is obtained for π 4DQPSK which is similar to that obtained for 8PSK Phase shifts are however assigned to the individual modulation symbols The following tables show the assignment of modulation symbols to phase shifts of IQ vectors at the selected coding Table 2 4 Phase shifts for π 4DQPSK without coding Modulation symbol dn binary indication MSB LSB 00 01 10 ...

Страница 158: ...4 Coding Modulation symbols are coded directly before an assignment of I and Q values or frequency shifts Coding is thus directly related with modulation methods which is the reason why codings are not freely combinable with modulation methods The following table shows which combinations are possible Table 2 8 Possible combination of modulation method and coding Coding Selection CODING Combinable ...

Страница 159: ...s dn 2 dcn 1 dcn 0 2 1 3 2 0 3 1 By means of differential coding the assignment between modulation symbols and phase differences shown in the following table is generated Modulation symbol dn binary MSB LSB 00 01 10 11 Phase difference ϕ 0 90 180 270 Example 2 Gray and differential coding for 8PSK modulation First a gray coding is performed according to the gray code Afterwards a differential codi...

Страница 160: ...uld lead to an impermissible combination Table 2 10 Examples of settings conflicts Original status Change by selection Conflict Solution 1 MOD TYPE π 4DQPSK SYMBOL RATE 10 Msymb s MOD TYPE GMSK GMSK is only possible for symbol rates up to 7 5 Msymb s Reduction of symbol rate to a value of 7 5 MHz 2 MOD TYPE 2FSK FILTER GAUSS FILTER PARAMETER 1 0 FILTER COS Filter COS 1 0 not possible the maximum r...

Страница 161: ...ontrol signals can be selected in the menu by entering SOURCE CONTROL STATE ON and the active list by SOURCE SELECT CONTROL LIST Note With DATA LIST selected as a source for internal modulation data the control signals too have to come from a list In this case the setting POWER RAMP CONTROL SOURCE EXTERN DIGITAL issues an error message With CONTROL LIST selected as a source for control signals the...

Страница 162: ...dulation can be switched off by the CW Continuous Wave signal HOP Hopping is a trigger signal for frequency hopping compare with section List Mode TRIG 1 and TRIG 2 Trigger Output 1 and 2 can be used to generate synchronization signals such as frame clocks start markers of a PRBS sequence or a special modulation symbol Signals BGATE LATT HOP and CW are used internally by SMIQ but not signals TRIG ...

Страница 163: ...ollowing table describes all available PRBS generators Table 2 11 PRBS generators of modulation coder PRBS generator Length in bit Feedback to 9 Bit 29 1 511 Register 4 0 15 Bit 215 1 32767 Register 1 0 16 Bit 216 1 65535 Register 5 3 2 0 20 Bit 220 1 1048575 Register 3 0 21 Bit 221 1 2097151 Register 2 0 23 Bit 223 1 8388607 Register 5 0 PRBS data as a source for modulation data are selected in t...

Страница 164: ... signals at the parallel interface A positive CLOCK EDGE is assumed to be set SYMBOL CLOCK output DATA D7 MSB output 2 10 5 External Modulation Data and Control Signals Digital modulation signals such as data clock and signals for envelope control can be externally applied to the modulation coder either via the parallel PAR DATA interface at the rear of SMIQ or via the serial interface with BNC co...

Страница 165: ...lly generated in the modulation coder internal data clock The following figures show the timing at the interface In all the cases shown the active clock edge is assumed to be positive DATA input BIT CLOCK input Fig 2 54 External serial data and bit clock Data change should take place only on the negative clock edge DATA input SYMBOL CLOCK input Internal dataclock LSB MSB Fig 2 55 External serial d...

Страница 166: ...ymbol clock Data change should take place only on the negative clock edge SYMBCLK output DATA D7 input Internal dataclock Fig 2 58 External parallel data and symbol clock SYMBOL CLOCK High marks the LSB A status change of DATA and SYMBOL CLOCK should be performed synchronously External serial modulation data is selected in the menu by SOURCE SOURCE EXT_SER For modulation types with less than 8 bit...

Страница 167: ...lation using STATE OFF 5 Set TRIGGER MODE ARMED_AUTO In this state SMIQ is ready for reception but discards data that are read in via SERDATA 6 Switch on digital modulation with STATE ON 7 Start external data source The read in data are written into the receiving buffer Only if this buffer is filled can SMIQ react to a trigger event 8 Activate trigger event to start digital modulation Note The bau...

Страница 168: ... taken to the envelope modulator and is provided at connector POWER RAMP The LEV ATT signal serves for a defined level reduction x dB Level attenuation RF Π RF OUT Envelope control BURST GATE LEV ATT POWER RAMP Fig 2 59 Envelope control in SMIQ with modulation coder The digital envelope control signals can be fed in externally via connector PAR DATA With option Data Generator SMIQB11 provided the ...

Страница 169: ... possible This symbol clock is applied via the PAR DATA interface In all other cases apply symbol and bit clock to the corresponding BNC connector The clock signal is selected in the menu via CLOCK MODE SYMBOL BIT and CLOCK CLOCK SOURCE EXT To allow for a trouble free synchronization of the clock synthesizer first apply the external clock and set the correct symbol rate at SMIQ Then switch CLOCK S...

Страница 170: ...re selections and settings for modulation data from lists FREQ 100 000 000 0 MHz FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES Π Π Π Π 4DQPSK STATE SOURCE SELECT STA MODULATION SYMBOL RAT FILTER CODING TRIGGER MO TRIGGER CLOCK PRBS 0 1 01 9 15 16 20 21 23 Bit CURRENT NONE OFF ON CURRENT NONE SOURCE PATTERN PRBS LENGTH SELECT DATA LIST COPY CUR...

Страница 171: ... from lists IEC bus SOUR DM SOUR DLIS PATTERN Selection of a simple data pattern which is continuously generated 0 0s are continuously generated IEC bus SOUR DM PATT ZERO 1 1s are continuously generated IEC bus SOUR DM PATT ONE 01 010 data changes are continuously generated IEC bus SOUR DM PATT ALT PRBS LENGTH Setting of PRBS generator length 9 bit 15 bit 16 bit 20 bit 21 bit and 23 bit can be sel...

Страница 172: ...CLIS CONT ON SELECT CONTROL LIST Opens a window for selecting a stored list for control signals or for generating a new list for control signals IEC IEEE bus SOUR DM CLIS SEL name COPY CURRENT CONTROL LIST TO Stores the current list for control signals under a different name IEC IEEE bus SOUR DM CLIS COPY name DELETE CONTROL LIST Deletes a list for control signals EDIT CONTROL LIST Opens a window ...

Страница 173: ...M STAN NADC PDC IEC IEEE bus command SOUR DM STAN PDC PHS IEC IEEE bus command SOUR DM STAN PHS TETRA IEC IEEE bus command SOUR DM STAN TETR TFTS IEC IEEE bus command SOUR DM STAN TFTS PWT IEC IEEE bus command SOUR DM STAN PWT ICOBPSK IEC IEEE bus command SOUR DM STAN ICQB ICOGMSK IEC IEEE bus command SOUR DM STAN ICQG ICOQPSK IEC IEEE bus command SOUR DM STAN ICQQ WORLDSPACE IEC IEEE bus command ...

Страница 174: ...ly with option SMIQB47 OQPSK Offset Quadrature Phase Shift Keying IEC IEEE bus DM FORM OPSK OQPSK IS95 Quadrature Phase Shift Keying with a mapping according to Interim Standard 95 for CDMA IEC IEEE bus DM FORM OIS95 π 4 QPSK QPSK with π 4 rotation for each symbol step use NSTAR IEC IEEE bus DM FORM P4QP π 4 DQPSK QPSK with differential coding IEC IEEE bus DM FORM P4DQ 8PSK Phase Shift Keying with...

Страница 175: ...Input value of symbol rate IEC IEEE bus command SOUR DM SRAT 1 2288 MHZ FILTER Opens a window for setting the baseband filtering FREQ 100 000 000 0 MHz FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES Π Π Π Π 4DQPSK FILTER TYPE FILTER PARAMETER FILTER MODE LOW_ACP LOW_EVM SQR_COS 0 35 LEVEL 30 0 dBm PEP 27 6 dBm STATE SOURCE SELECT STAN MODULATIO...

Страница 176: ...n IEC SOUR DM FILT TYPE APCO TETRA Filter for PSK QAM modulation IEC SOUR DM FILT TYPE TETR WCDMA0 22 Filter for PSK modulation Square Root Raised Cosine filter with Roll Off 0 22 optimized for W CDMA IEC SOUR DM FILT TYPE WCDM RECTANGLE Filter with a rectangular impulse answer of 1 symbol length IEC SOUR DM FILT TYPE RECT SPLIT PHASE Filter for ASK modulation IEC SOUR DM FILT TYPE SPH USER User d...

Страница 177: ...IEC bus command SOUR DM COD NADC PDC Differential coding according to PDC standard IEC bus command SOUR DM COD PDC PHS Differential coding according to PHS standard IEC bus command SOUR DM COD PHS TETRA Differential coding for π 4 DQPSK according to TETRA standard IEC bus command SOUR DM COD TETR APCO25 Differential coding according to APCO25 standard IEC bus command SOUR DM COD APCO25 PWT Differe...

Страница 178: ...new trigger event causes a restart of the data sequences IEC IEEE bus command SOUR DM SEQ ARET SINGLE A trigger event causes a single data sequence run IEC IEEE bus command SOUR DM SEQ SING EXECUTE TRIGGER Executes a trigger event to start a data sequence IEC IEEE bus command TRIG DM IMM TRIGGER Opens a window for setting the different types of trigger and for setting the time delay of the trigger...

Страница 179: ...er event is inhibited during MODE RETRIG after a trigger signal During MODE RETRIG each new trigger signal restarts the data sequence in the data generator This restart can be inhibited for the entered number of symbols The entry of 1250 symbols for example causes new trigger signals to be ignored for the duration of 1250 symbols after execution of a trigger event IEC IEEE bus SOUR DM TRIG INH 125...

Страница 180: ...IEEE bus SOUR DM CLOC SOUR EXT MODE Selection of clock for the external clock signal SYMBOL An externally fed clock has to be a symbol clock BIT An externally fed clock has to be a bit clock IEC IEEE bus SOUR DM CLOC MODE SYMB DELAY Input value of delay of generated modulation signal compared with an externally fed clock This can be used for example for synchronization with a second unit to achiev...

Страница 181: ...ction of source OFF Envelope control is switched off IEC IEEE SOUR DM PRAM STAT OFF INT Signals BGAT and LATT from the active CONTROL LIST CLIST are used for envelope control only with option SMIQB11 IEC IEEE SOUR DM PRAM STAT ON SOUR DM PRAM SOUR CLIST EXT_ANALOG Envelope control is via an external analog signal that can be fed in via connector POWER RAMP IEC IEEE bus commands SOUR DM PRAM STAT O...

Страница 182: ... function is normally used for TDMA frame structures to generate a slot with reduced level IEC IEEE bus SOUR DM PRAM ATT 0 dB EXT INPUTS Opens a window for setting the trigger threshold input impedance and polarity of the external digital modulation coder inputs ie connector PAR DATA and inputs DATA BIT CLOCK and SYMBOL CLOCK FREQ 100 000 000 0 MHz FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD...

Страница 183: ... select a suitable setting for the high low threshold under TRESHOLD IEC IEEE bus command SOUR DM INP IMP G1K CLOCK SLOPE Selection of polarity of active edge of externally fed bit clock or symbol clock Note In the internal clock mode CLOCK SLOPE NEG inverts the clock output signals IEC IEEE bus SOUR DM CLOC POL NORM TRIGGER SLOPE Selection of polarity of active trigger edge for input TRIGIN IEC I...

Страница 184: ...ulation of a communication channel for a speech coder rate of 32 kbit s TCHHALF simulation of a communication channel for a speech coder rate of 16 kbit s VOX simulation of a communication channel in non speech intervals with uplink transmission only in every fourth frame SYNC simulation of a sync channel and ALL_DATA burst type for test purposes with freely programmable data contents in the selec...

Страница 185: ...a settable number of symbols EXT TRIGGER DELAY Retriggering RETRIG can be inhibited for a settable number of symbols EXT RETRIGGER INHIBIT A trigger event can be executed manually or via the IEC IEEE bus using EXECUTE TRIGGER When a trigger event is executed a trigger signal is output at the TRIGOUT 3 output of SMIQ SMIQ also generates the following sync signals a frame clock at TRIGOUT 1 output a...

Страница 186: ...ator is clearly defined by the number of registers and the feedback The following table describes all PRBS generators available Table 2 13 PRBS generators for PHS PRBS generator Length in bits Feedback after 9 bit 29 1 511 Register 4 0 11 bit 211 1 2047 Register 2 0 15 bit 215 1 32767 Register 1 0 16 bit 216 1 65535 Register 5 3 2 0 20 bit 220 1 1048575 Register 3 0 21 bit 221 1 2097151 Register 2...

Страница 187: ...lected slot and that they are reproducible the buffer of the RS 232 transmitter and receiver has to be deleted A triggered start has to follow The following setting sequence is required in the DIGITAL STD PHS menu 1 Carry out desired settings in menu 2 Select data source SERDATA for the data field of the slot using SELECT SLOT 3 Make connection to external data source but do not yet start external...

Страница 188: ...ER RAMP CONTROL SLOT ATTENUATION SAVE RCL FRAME SELECT SLOT DN UP 1 2 3 4 1 2 3 4 OFF ON Π 4DQPSK 2 b sym AUTO INT INT 15 0 dB SYNC LEVEL 30 0 dBm PEP 27 5 dBm Fig 2 69 Menu DIGITAL STD PHS SMIQ equipped with Modulation Coder SMIQB20 and Data Generator SMIQB11 STATE Switch on off of Digital Standard PHS modulation Vector Modulation or Digital Modulation will be switched off automatically IEC IEEE ...

Страница 189: ... for selecting the trigger mode AUTO The PHS signals are continuously transmitted in the activated slots IEC IEEE bus command SOUR PHS SEQ AUTO RETRIG The PHS signals are continuously transmitted in the activated slots A trigger event causes a restart IEC IEEE bus command SOUR PHS SEQ RETR ARMED_AUTO The PHS signal generation does not start until a trigger event has occurred The unit then automati...

Страница 190: ...RIGGER OUT2 DELAY 0 Symb TRIGGER OUT2 PERIOD 1 Frames LEVEL 30 0 dBm PEP 27 5 dBm SYNC DN 1 2 Fig 2 71 Menu DIGITAL STD PHS_TRIGGER SMIQ equipped with Modulation Coder SMIQB20 and Data Generator SMIQB11 TRIGGER TRIGGER SOURCE Selection of trigger source EXT The PHS signal generation is started by the active slope of an external trigger signal The polarity the trigger threshold and the input resist...

Страница 191: ...igger event With TRIGGER MODE RETRIG selected each new trigger signal restarts the PHS signal generation This restart can be inhibited for the entered number of symbols Example The entry of 1000 symbols causes new trigger signals to be ignored for the duration of 1000 sym bols after a trigger event IEC IEEE bus SOUR PHS TRIG INH 1000 TRIGGER OUT 2 DELAY Input value of delay of trigger signal at TR...

Страница 192: ...ls EXT An external symbol clock or bit clock is fed in at connectors SYMBOL CLOCK or BIT CLOCK The clock synthesizer on the modulation coder is synchronized to this clock The symbol rate has to be set with an accuracy of 1 The polarity the trigger threshold and the input resistance of the clock inputs can be modified in menu DIGITAL MOD EXT INPUTS IEC IEEE bus command SOUR PHS CLOC SOUR INT MODE S...

Страница 193: ...actory set values IEC IEEE bus SOUR PHS PRAM PRES RAMP TIME Input value for the rise and fall time of the envelope at the beginning or end of a slot The time is set in units of symbol period IEC IEEE bus SOUR PHS PRAM TIME 0 25 RAMP FUNCTION Selection of shape of rising and falling ramp for envelope control LIN Linear ramp function COS Cosine function A more favourable spectrum than that of the LI...

Страница 194: ...E EXECUTE TRIG TRIGGER CLOCK POWER RAMP C SLOT ATTENUA SAVE RCL FRA GET PREDEFINED FRAME RECALL FRAME SAVE FRAME DELETE FRAME LEVEL 30 0 dBm PEP 27 5 dBm SYNC DN 1 2 Fig 2 74 Menu DIGITAL STD PHS SAVE RCL FRAME SMIQ equipped with Modulation Coder SMIQB20 and Data Generator SMIQB11 SAVE RCL FRAME GET PREDEFINED FRAME Loads a factory set frame configuration DN1_TCH Downlink Traffic Channel in slot1 ...

Страница 195: ... unit keys toggle function FREQ 100 000 000 0 MHz FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES PHS PHS IS95 NADC PDC GSM SLOT R SS PR UW CS_ID PS ID IDLE CRC GUARD 1 DN 4 2 62 32 42 28 34 16 16 BURST TYPE SYNC SLOT LEVEL OFF ATTEN FULL SET DEFAULT CS ID SCRAMBLE STATE OFF ON CS ID CODE 000 H BURST CONTENTS R O H SS 2 H PR 1999 9999 9999 9999 ...

Страница 196: ... PHS SLOT2 LEV OFF FULL The level corresponds to the value indicated on the SMIQ LEVEL display IEEE bus SOUR PHS SLOT2 LEV FULL ATTEN The level is reduced by the value set under SLOT ATTENUATION IEEE bus SOUR PHS SLOT2 LEV ATT SET DEFAULT Resets the subsequent parameters to the factory set values IEC IEEE bus command SOUR PHS SLOT8 PRES CS ID SCRAMBLE STATE Switch on off of CS ID scrambling functi...

Страница 197: ...ITT V52 or Rec 0 151 with periods between 2 9 1 and 2 23 1 IEEE SOUR PHS SLOT3 SACCH PN9 DLIST Data from a programmable data list IEEE SOUR PHS SLOT3 SACCH DLIS SERDATA Data from data input SER DATA IEEE SOUR PHS SLOT3 SACCH SDAT TCH VOX Selection of data source for TCH data field This data field is only displayed for burst types TCH and VOX PN PRBS data according to CCITT V52 or Rec 0 151 with pe...

Страница 198: ...Guard field in hexa decimal form SELECT DATA LIST Opens a window for selecting a stored data list or for generating a new list COPY CURRENT DATA LIST TO Stores the current data list under a different name DELETE DATA LIST Deletes a data list EDIT DATA LIST Opens a window for editing a data list bit by bit The available storage capacity and the length of the current list is displayed in parameters ...

Страница 199: ...nnel has a different PRBS Modulation data are not subject to channel coding convolution coding interleaving The following figure shows the schematic of forward link signal generation Walsh 0 PN I Walsh 1 PNQ I Q Walsh k Σ Σ Σ Σ Baseband FIR Filter Baseband FIR Filter Channel Power Setting QPSK Mapping Pattern PRBS 19200 bps 1 2288 Mcps Pattern PRBS 0000 Fig 2 76 Forward link signal generation At a...

Страница 200: ...is 28800 bps s The modulation type is offset QPSK A FIR filter is preset as baseband filter without equalizer according to IS 95 FILTER TYPE IS 95 The second reverse link mode also comprises channel coding With this reverse link coded mode both an access channel 4800 bps and a traffic channel can be generated with all the data rates between 1200 bps and max 14400 bps complying with IS 95 Rate Set ...

Страница 201: ...l number generator frequency MHz Mobile station 1 N 1199 0 050N 1850 000 Base station 1 N 1199 0 050N 1930 000 Table 2 15 Preferred CDMA frequency channels according to J STD 008 channel number generator frequency MHz channel number generator frequency MHz mobile station base station mobile station base station 25 1851 25 1931 25 600 1880 00 1960 00 50 1852 50 1932 50 625 1881 25 1961 25 75 1853 7...

Страница 202: ...clock traffic channel frame clock a 80 3 ms clock short sequence rollover a 80 ms clock super frame clock a 2 s clock even second clock a PCG clock in reverse link at half rate 1 4 rate and 1 8 rate SMIQ can output two of the four signals via pins TRIGOUT 1 and 2 of connector PAR DATA 80 ms t 0 Short Code I_PN 15 0 Even second clock Period 2 sec Paging Frame Traffic Frame Short Sequence Roll Over ...

Страница 203: ...111 1111 1011 1111 1100 0001 0010 0000 1110 0100 0001 0011 1110 0010 0100 0110 The generated bits are assigned to the modulation data of the different forward link modes as follows Mode FWD_LINK_18 The PN bits are assigned to the different code channels as follows Modulation data bit 0 1100 0100 1110 0011 1111 0001 1111 1110 c31 ch30 ch0 Modulation data bit 1 0011 1111 0000 0111 1110 0011 1001 110...

Страница 204: ...termined by the number of registers and the feedback The following table describes all available PRBS generators Table 2 16 PN generators for IS 95 reverse link PRBS generator Length in bits Feedback to Start value 9 bits 29 1 511 Register 4 0 1100 0100 1 11 bits 211 1 2047 Register 2 0 1100 0100 111 15 bits 215 1 32767 Register 1 0 1100 0100 1110 001 16 bits 216 1 65535 Register 5 3 2 0 1100 0100...

Страница 205: ...E MODE SET DEFAULT MODULATION TRIGGER MODE EXECUTE TRIGGER TRIGGER CLOCK TOTAL POWER ADJUST TOTAL POWER SAVE RCL MAPPING CHANNEL NO WALSH CODE POWER dB DATA STATE 0 PILOT 0 7 0 0000 ON 1 32 13 0 PRBS ON 2 1 7 3 PRBS ON 3 9 10 3 PRBS ON 4 10 10 3 PRBS ON 5 11 10 3 PRBS ON 6 12 10 3 PRBS ON 7 17 10 3 PRBS ON 8 25 10 3 PRBS ON 9 33 10 3 PRBS OFF 10 34 10 3 PRBS OFF 11 35 10 3 PRBS OFF 12 36 10 3 PRBS...

Страница 206: ...E FLIN18 FWD_LINK_64 Activates the generation of a forward link signal with up to 64 code channels Walsh codes 0 to 63 WALSH CODE are assigned to the channels The source for modulation data DATA can be determined individually for each channel Each channel can be switched on off STATE The relative power POWER of the pilot channel Walsh 0 can be freely determined in range 30 dB to 0 dB The power set...

Страница 207: ...the remaining 80 of the transmit power is distributed equally on the remaining 63 channels IEC IEEE bus command SOUR IS95 PRES MODULATION Opens a window for setting the modulation parameters Fig 2 82 Menu DIGITAL STD IS 95 MODULATION equipped with options modulation coder SMIQB20 data generator SMIQB11 and SMIQB42 MODULATION MODULATION TYPE Indicates the modulation type CHIP RATE Setting value of ...

Страница 208: ...ital Modulation is possible A FIR filter is preset according to IS 95 IEEE command SOUR IS95 FILT RTYP IS95 ROLL OFF FACTOR Setting value of roll off factor The setting is only possible provided that a COS or SQRCOS filter is selected under FILTER IEEE bus command SOUR IS95 FILT PAR 0 22 FILTER MODE Selection of filter mode LOW_ACP Filter for minimum Adjacent Channel Power IEEE SOUR IS95 FILT MODE...

Страница 209: ...estart IEC IEEE bus command SOUR IS95 SEQ ARET EXECUTE TRIGGER Executes a trigger event to start the CDMA chip sequence IEC IEEE bus command TRIG DM IMM TRIGGER Opens a window for selecting the trigger source for configuring the trigger output signals and for setting the time delay of an external trigger signal FREQ 100 000 000 0 MHz FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF...

Страница 210: ...IS95 TRIG DEL 3 EXT RETRIGGER INHIBIT Setting the number of chips for which a restart is inhibited after a trigger event With TRIGGER MODE RETRIG selected each new trigger signal restarts the CDMA chip sequence This restart can be inhibited for the entered number of chips symbols Example The entry of 98000 symbols for example causes new trigger signals to be ignored for the duration of 98000 chips...

Страница 211: ...e terms symbol clock and chip clock are synonymous FREQ 100 000 000 0 MHz FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES IS95 PHS IS 95 STATE MODE SET DEFAULT MODULATION TRIGGER MODE EXECUTE TRIGGER TRIGGER CLOCK TOTAL POWER ADJUST TOTA CLOCK MODE CHIP CHIPX4 CHIPX8 CHIPX16 CLOCK SOURCE INT EXT DELAY 0 35 Symb LEVEL 30 0 dBm PEP 13 9 dBm Fig 2 ...

Страница 212: ... below 100 kHz The resolution is reduced with increasing frequency At a chip rate of 1 2288 Mcps the resolution equals the chip duration 0 1 IEC IEEE bus SOUR IS95 CLOC DEL 0 5 TOTAL POWER Display of the total power of all active code channels The TOTAL POWER is calculated when the modulation is active STATE ON It is the sum of the channel power of all active channels If the value is not equal 0 d...

Страница 213: ...OD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES IS95 PHS IS 95 MODE SET DEFAULT MODULATION TRIGGER MODE EXECUTE TRIGGER TRIGGER CLOCK TOTAL POWER ADJUST TOTAL SAVE RCL MAP GET PREDEFINED MAPPING RECALL MAPPING SAVE MAPPING DELETE MAPPING LEVEL 30 0 dBm PEP 13 9 dBm Fig 2 85 Menu DIGITAL STD IS 95 SAVE RCL MAPPING equipped with options modulation coder SMIQB20 data generator SMIQB11 and SMIQB...

Страница 214: ...d in LEVEL display code domain power For FWD_LINK_18 the power of channels 0 1 2 is set individually the other channels have the same power The power for all the channels is set in channel 3 For FWD_LINK_64 the power of the pilot channel is set individually the other channels have the same power The power for all the channels is set in channel 1 IEC IEEE bus command SOUR IS95 CHAN1 POW 10 DB DATA ...

Страница 215: ...TO EXECUTE TRIGGER TRIGGER INT CLOCK INT RATE FULL_RATE HALF_RATE BURST RANDOMIZER OFF ON DATA 0000 CHANGE DATA SELECT DATA LIST CURRENT R STDM COPY CURRENT DATA LIST TO DELETE DATA LIST EDIT DATA LIST EVEL 30 0 dBm PEP 23 3 dBm STATE Fig 2 86 Menu DIGITAL STD IS 95 MODE REV_LINK STATE to CLOCK see section Menu IS 95 CDMA Standard Forward Link Signal RATE Selection of full rate or half rate transm...

Страница 216: ...g a stored data list or for generating a new list only with Reverse Link or Reverse Link Coded modes COPY CURRENT DATA LIST TO Stores the current data list under a different name only with Reverse Link or Reverse Link Coded modes DELETE DATA LIST Deletes a data list only with Reverse Link or Reverse Link Coded modes EDIT DATA LIST Opens a window for editing a data list bit by bit The available sto...

Страница 217: ... 100 000 000 0 MHz FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES IS95 PHS IS95 NADC PDC GSM L OFF ON MODE REV_LINK SET DEFAULT MODULATION QPSK IS 95 TRIGGER MODE AUTO EXECUTE TRIGGER TRIGGER INT CLOCK INT CHANNEL TYPE RATE TRAFFIC 14400 DATA CURRENT PN9 ADD FRAME QUAL INDICATOR OFF ON CONVOLUTIONAL ENCODER OFF ON BLOCK INTERLEAVER OFF ON ERASU...

Страница 218: ... channel with 1200 bps 16 bits are inserted into each frame IEC IEEE bus SOUR IS95 RLC CTYP TRAF7200 SOUR IS95 RLC CTYP ACC4800 DATA SOURCE Selects the modulation data for the reverse link signal with channel coding The data are continuously inserted into the data field of the corresponding frame PN PRBS data to CCITT with period length between 2 9 1 and 2 23 1 IEC IEEE bus command SOUR IS95 RLC D...

Страница 219: ...any channel coding convolution coding interleaving The user can however store channel coded modulation data in a data list to generate a logic channel eg a Dedicated Traffic Channel The following figure shows the schematic of forward link signal generation Fig 2 88 Downlink DPCH signal generation for a code channel The Perch Channel DPCH Dedicated Physical Channel and CCPCH Common Control Physical...

Страница 220: ... in the uplink The data rate for modulation data framed data of the DPDCH can be selected 16 32 64 to 1024 ksymbol s The modulation data are not calculated in real time in SMIQ On the user request a W CDMA chip sequence is calculated STATE ON and then stored in the data memory of the data generator option SMIQ B11 The sequence length is settable SEQUENCE LENGTH FRAMES the maximum possible length d...

Страница 221: ... When a trigger event is executed a trigger signal is output at the TRIGOUT 3 output of SMIQ SMIQ generates the following sync signals a 0 625 ms slot clock a 10 ms radio frame clock a marker signal for identifying the periodic repetition of the generated chip sequence SMIQ can output two of the three signals via pins TRIGOUT 1 and 2 of connector PAR DATA A clock synthesizer on the modulation code...

Страница 222: ...ing table describes all available PRBS generators Table 2 17 PN generators for W CDMA PRBS generator Length in bits Feedback to Start value 9 bits 29 1 511 Register 4 0 Channel 0 0000 0100 1 Channel 1 1000 0100 1 Channel 2 0100 0100 1 Channel 3 1100 0100 1 Channel 15 1111 0100 1 11 bits 211 1 2047 Register 2 0 Channel 0 0000 0100 100 Channel 15 1111 0100 100 15 bits 215 1 32767 Register 1 0 Channe...

Страница 223: ...rs that are identical for all modes are explained in this section Menu selection DIGITAL STD WCDMA MODE 8CHAN LINK DIRECTION MULTIPLEX DOWN FREQ 100 000 000 0 MHz FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES WCDMA PHS IS 95 WCDMA NADC PDC GSM DECT STATE MODE 4CHAN 8CHAN 15CHAN SET DEFAULT CHIP RATE 4 096 Mcps LINK DIRECTION MULTIPLEX DOWN MOD...

Страница 224: ...h channel can be switched on or off STATE 4CHAN Activates the generation of a signal with up to 4 code channels channel No 0 to 3 The relative power POWER of the channels can be freely determined in range 30 dB to 0 dB IEC IEEE bus SOUR WCDM MODE CHAN4 8CHAN Activates the generation of a signal with up to 8 code channels channel No 0 to 7 The relative power POWER of channel 0 can be freely determi...

Страница 225: ...EEE bus SOUR WCDM PRES CHIP RATE Selection between 4 096 Mcps and 8 192 Mcps Selecting 8 192 Mcps depends on the hardware configuration of the unit and is not offered yet Selecting CHIP RATE has an effect on the generation of spreading codes and thus on the calculated chip sequence IEC IEEE bus SOUR WCDM CRAT R4M LINK DIRECTION MULTIPLEX Opens a window for selecting the type of transmit signal fro...

Страница 226: ...TYPE Selection between the types of modulation QPSK and offset QPSK IEC IEEE bus SOUR WCDM FORM QPSK CHIP RATE VARIATION Setting value for the chip clock frequency The value for CHIPRATE from the main menu is preset CHIP RATE VARIATION modifies the output clock and the modulation bandwidth as well as the output synchronization signals It has no effect on the calculated chip sequence IEC IEEE bus S...

Страница 227: ...cyclically repeated IEC IEEE bus command SOUR WCDM SEQ AUTO RETRIG The W CDMA chip sequence is continuously re peated A trigger event causes a restart from frame 1 IEC IEEE bus command SOUR WCDM SEQ RETR ARMED_AUTO The W CDMA chip sequence cannot be started from frame 1 until a trigger event has occurred The unit then automatically switches over to the AUTO mode and can no longer be triggered IEC ...

Страница 228: ...rce EXT The W CDMA chip sequence is started from frame 1 by means of the active slope of an external trigger signal The polarity the trigger threshold and the input resistance of the TRIGIN input can be modified in menu DIGITAL MOD EXT INPUTS INT A trigger event is manually executed by EXECUTE TRIGGER IEC IEEE bus SOUR WCDM TRIG SOUR EXT EXT TRIGGER DELAY Setting the number of chips by which an ex...

Страница 229: ...should externally be applied to connector SYMBOL CLOCK Parameter CHIP RATE should be correctly set with a precision of 1 The polarity the trigger threshold and the input resistance of the SYMBOL CLOCK input can be modified in menu DIGITAL MOD EXT INPUTS IEC IEEE bus SOUR WCDM CLOC SOUR INT TOTAL POWER Display of the total power of all active code channels The TOTAL POWER is calculated when the mod...

Страница 230: ...C have the same settings and are spread with the same spread codes of the MASTER CHANNEL for all selected code channels STATE Switch on off the multicode mode IEC IEEE bus SOUR WCDM MULT STAT ON MASTER CHANNEL Selection of the master channel This channel defines spread code and contents for data fields Pilot and TPC in all multicode channels The selection also causes that parameters LONG CODE INIT...

Страница 231: ... values are represented in the following table TYPE SYMBOL RATE kS s PERCH 16 CCPCH 64 DPCH 32 64 128 256 512 1024 DPDCH 16 32 64 128 256 512 1024 DPCCH 16 ALLD 16 32 64 128 256 512 1024 IEC IEEE bus command SOUR WCDM CHAN4 SRAT D64 Menu selection DIGITAL STD WCDMA SPREAD CODE FREQ 100 000 000 0 MHz FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIE...

Страница 232: ...d in LEVEL display code domain power For MODE 4CHAN the power of channels 0 1 2 and 3 is set separately For MODE 8CHAN the power of channel 0 is set separately the other channels have the same power The power for all the channels is set for instant in channel 1 For MODE 15CHAN Since all channels have the same power they cannot be set POWER is only a display parameter in this case When this value i...

Страница 233: ...T DATA LIST IEC IEEE bus SOUR WCDM CHAN4 DATA PN9 DATA OFFSET Entry value for a data offset in units of symbol duration The admissible range is as large as the length of a radio frame The entry of a data offset shifts in time the modulation data with respect to the spread code IEC IEEE bus SOUR WCDM CHAN4 DATA OFFS 3 TPC Selection of the data source for the TPC field in channel types DPCH and DPCC...

Страница 234: ...SET DEFAULT CHIP RATE 4 096 Mcps LINK DIRECTION MULTIPLEX UP_IQ_MULT MODULATION QPSK TRIGGER MODE RETRIG EXECUTE TRIGGER TRIGGER INT CLOCK INT EXT TOTAL POWER 0 0 dB ADJUST TOTAL POWER SAVE RECALL SETTINGS COMING SOON MULTICODE OFF SEQUENCE LENGTH FRAMES 1 _________SYMB RATE SPREAD POWER_______________ CHNO TYPE ks s CODE dB DATA STATE 0I DPDCH 16 1 11 8 PN15 OFF 0Q DPCCH 16 0 11 8 PN15 ON 1I DPDC...

Страница 235: ...The DPDCH type has a fixed symbol rate of 16 ksymbol s The symbol rate can be separately set for the I and Q channel IEC IEEE bus command SOUR WCDM CHAN4 I SRAT D16 SPREAD CODE Opens a window for the spread code settings The first line of the window indicates the code channel for which the settings are done SPREADING OF CHANNEL NO The long code settings are valid in common for the I and Q channel ...

Страница 236: ...OTAL POWER is automatically adapted if STATE ON IEC IEEE bus command SOUR WCDM CHAN4 I POW 6 DATA Opens a window for selecting data sources and setting a data offset The first line of the window indicates the code channel for which the settings are done DATA CONFIGURATION OF CHANNEL NO The data source the data offset and TPC can be separately set for the I and Q channel DATA Selection of the data ...

Страница 237: ...d with 1 or 0 from slot to slot The first slot contains 1 data DLIST Data from a list previously programmed and stored Programming is performed in the menu DIGITAL MOD SOURCE EDIT DATA LIST IEC IEEE bus SOUR WCDM CHAN4 I TPC ZERO STATE Activation or deactivation of the I or Q component of the assigned code channel The I or Q component of channels with common power up should always have the same st...

Страница 238: ...in numerous details The SMIQ provides a version developed by the 3 GPP standard organization 3 rd Generation Partnership Project This version can be regarded as an amalgamation of the IMT 2000 proposals by Association of Radio Industries and Businesses ARIB The European Telecommunications Standards Institute ETSI and is thus also the successor of versions to 3GPP 2 0 0 2 1 0 3 1 1 3 2 0 and 3 4 0 ...

Страница 239: ...H Uplink Phys Random Access Channel PRACH Phys Common Packet Channel PCPCH Dedicated Physical Control Channel DPCCH Dedicated Physical Data Channel DPDCH Symbol rates 7 5 ksps 15 ksps 30 ksps to 960 ksps depending on type of channel Number of channels 4 base stations in the downlink with up to 128 DPCHs and 11 special channels each 4 mobile stations in the uplink either with PRACH or PCPCH or DPDC...

Страница 240: ...r differ depending on the link direction and the mode long or short 1 Downlink scrambling code generator This generator consists of a pair of shift registers from which the binary sequences for in phase and quadrature components of the scrambling code are determined Fig 2 98 shows that the I component results from an EXOR link of the LSB outputs whereas for the Q component the register contents ar...

Страница 241: ...for all channels except PRACH and PCPCH as an alternative to the long SC a Uplink long scrambling code generator The code generator of the long SC in the uplink has basically the same structure as the SC in the downlink However the generator polynomials of the shift registers and the type of initialization differ Table 2 19 Generator polynomials of uplink long scrambling code generators Shift regi...

Страница 242: ...y complex level by the mapper block For initialization of the three 8 bit shift registers in a modified way the binary form of the 24 bit short SC number n is used for details see section 4 3 2 3 in 2 Table 2 21 Mapping of the quaternary output sequence into the binary IQ level zv n Sv n 0 1 j1 1 1 j1 2 1 j1 3 1 j1 c Preamble scrambling code generator When generating the preambles of the PRACH and...

Страница 243: ...le corresponds to the duration of the source symbol to be spread i e the number of bits corresponds to the spread factor The spreading sequence for the I and Q branches is identical real Spreading itself is a simple EXOR operation Two different channelization code generators are used depending on the type of channel Channelization code generator for all channels except SCH Due to this channelizati...

Страница 244: ... pilot sequence The pilot sequence cannot be changed by the user Synchronization code symbol The synchronization code symbol is the only symbol of the SCH It is fixed to 11 TPC symbol This symbol is used to control the transmit power It is used in DPCH DL DPCCH and DPCCH A bit pattern for the sequence of TPC symbols can be indicated as a channel specific pattern Data symbols These symbols carry th...

Страница 245: ...H and scramble chips SCi SCq that are applied to the pilot sequences of the channels Demultiplexer In the downlink the symbol stream is divided into two bit streams Di and Dq prior to processing in the spreading unit The symbol stream is divided by allocating bits 1 3 5 to 2n 1 to the in phase bit stream Di and bits 2 4 6 2n to the quadrature bit stream Dq For the above example with timing offset ...

Страница 246: ...nels using the spreading code of the master channel Note Instead of changing the spreading code within a slot several times the master code rather than the shared parts can be sent at higher power The other channels then have to be blanked out correspondingly 2 14 2 Generation of 3GPP W CDMA Signals The DIGITAL STD WCDMA 3GPP menu is used to configure W CDMA signals to the 3GPP standard FDD Up to ...

Страница 247: ...2 4 2 14 2 2 FREQUENCY LEVEL VECTOR MOD FSIM NDSIM 2 5 2 8 2 20 2 9 SELECT BS MS DIGITAL STD WCDMA 3GPP BS MS CONFIGURATION 2 14 2 1 MULTI CHANNEL EDIT CODE DOMAIN CHANNEL GRAPH 2 14 2 8 2 14 2 9 2 14 2 7 Fig 2 103 Overview of DIGITAL STD 3GPP WCDMA 3GPP menu structure Note The parts of the DIGITAL STD WCDMA 3GPP menu that are below the SELECT BS MS function are not required if a signal is paramet...

Страница 248: ...arts the calculation of a chip sequence based on current settings The length of the chip sequence and so the duration of the calculation is determined by the SEQUENCE LENGTH parameter IEC IEEE bus command SOUR W3GP STAT ON Note When a parameter is changed STATE is automatically switched to OFF to ensure that the set values and the output signal are consistent After changing all the values STATE ca...

Страница 249: ...SAVE SETTING Saving the current configuration An existing setting can be overwritten or a new setting can be created The name of the new setting is assigned automatically e g WCDMASEQ1 If the setting is created via the IEC IEEE bus the name is user selectable and the usual restrictions apply IEC IEEE bus SOUR W3GP SETT STOR MYSETUP DELETE SETTING Deleting a configuration IEC IEEE bus SOUR W3GP SET...

Страница 250: ...test models are defined for the uplink in the 3GPP standard To be able to generate appropriate test signals by a keystroke nevertheless the SMIQ offers predefined test signals also for the uplink Test model Description C D60 k Mobile station 1 is activated in the DPCCH DPDCH mode 60 ksps is selected as overall symbol rate and the power of DPCCH and DPDCH is set to 0 dB TEST MODELS NOT STANDARDIZED...

Страница 251: ...be set The maximum length is 13 frames IEC IEEE bus command SOUR W3GP SLEN 4 CLIPPING LEVEL Sets a clipping level relative to the highest peak in per cent The value range is 1 to 100 A value of 100 means that the signal is not clipped Clipping reduces the crest factor For background information on how to use this parameter see section 2 14 2 10 This menu item is only available with Option SMIQB48 ...

Страница 252: ...of this function see section 2 14 2 2 ENHANCED CHANNELS BS1 MS1 Calling an operating menu for the configuration of extended functions of the digital standard 3GPP W CDMA The menu item is available only if option SMIQB48 is installed For more detail on this menu see section 2 15 1 OCNS CHANNELS Simulation of Orthogonal Channel Noise The menu item can be accessed only in the downlink an is available...

Страница 253: ...nnelization codes The minimum value is 0 and the maximum value 511 This parameter is only available in the downlink IEC IEEE bus command SOUR W3GP COPY COFF 123 EXECUTE Starts copying IEC IEEE bus command SOUR W3GP COPY EXEC TRIGGER MODE Configuration of W CDMA sequence control see section 2 14 2 11 AUTO The calculated W CDMA chip sequence is immediately output and repeated cyclically Trigger even...

Страница 254: ... be changed in the DIGITAL MOD EXT INPUTS menu INT A trigger event is activated manually by EXECUTE TRIGGER IEC IEEE bus SOUR W3GP TRIG SOUR EXT EXT TRIGGER DELAY For setting the number of chips by which an external trigger signal is delayed before it starts the W CDMA chip sequence This is used to set up synchronization with the DUT or other units IEC IEEE bus SOUR W3GP TRIG DEL 3 EXT RETRIGGER I...

Страница 255: ...3GP TRIG OUTP1 CSP ENHANCED Marker signal for marking the CHIP SEQUENCE periodic repetition of generated PERIOD enhanced chip sequence only displayed with option SMIQB48 installed IEC IEEE bus command SOUR W3GP TRIG OUTP1 ECSP P CCPCH Marker signal for identifying BCH SFN the restart of the system RESTART frame number SFN Restart after 4096 frames available only when option SMIQB48 is installed an...

Страница 256: ...AY Setting the delay of generated modulation signal to an external clock This can be used for example for syn chronization with a second unit to achieve time synchroneity between the modulation signals of the two units The displayed setting resolution of 1 100 symbol is only attained for symbol clock frequencies below 100 kHz The resolution is reduced with increasing frequency At a chip rate of 1 ...

Страница 257: ...nu SELECT BS MS has a special significance in the 3GPP W CDMA menu It is always displayed in the bottom line of the scrollable area i e above the four station blocks After selection of this menu item SELECT hardkey the cursor is positioned in the area below The station whose parameters are to be edited can be selected by means of the spinwheel or the arrow keys Note The state of the BS MS can also...

Страница 258: ...NUMBER OF DPCH Number of DPCH in the scenario The minimum number is 0 The maximum number is the ratio of the chip rate and the symbol rate maximum 512 at the lowest symbol rate of 7 5 ksps IEC IEEE bus command SOUR W3GP PPAR DPCH COUN 123 SYMBOL RATE Symbol rate of all DPCH Possible values are 7 5k 15k 30k 60k 120k 240k 480k and 960k IEC IEEE bus command SOUR W3GP PPAR DPCH SRAT D30K CREST The cre...

Страница 259: ... FDD SMIQ 1125 5555 03 E 9 2 190 EXECUTE The channel table is automatically filled up with the set parameters Scrambling Code 0 is automatically selected as defined in the 3GPP test models IEC IEEE bus command SOUR W3GP PPAR EXEC ...

Страница 260: ... circle along the vertical axis Only radii that correspond to values that are at least as great as the average power are considered The crest factor can be read off at the intersection of the trace with the x axis The precise value is obtained from the displayed levels PEP LEVEL Fig 2 112 Reading off the crest factor from LEVEL displays In this example the crest factor is 7 8 dB The number of simu...

Страница 261: ...he code domain display see section 2 14 2 9 and the CCDF display see section 2 14 2 3 the constellation diagram is the most important display for a W CDMA signal In addition to channel powers the effect of data sources etc and also the spreading scheme can be read off as a function of the type of channel For further information on W CDMA constellation diagrams see sections 2 14 3 1 and 2 14 3 3 Th...

Страница 262: ...set and the channel specific parameters are set in the bottom part of the table Note To simplify handling of the large tables state parameters like channel state or multi code state can be toggled ON OFF with the ENTER key The ENTER key can also be used to switch from 1 value to the next when 1 of n values can be selected e g symbol rate Fig 2 115 DIGITAL STD WCDMA 3GPP menu extended function of E...

Страница 263: ... each slot in the frame this table assigns a certain spreading code to the synchronization code symbol The parameter s range is 0 to 63 This parameter can only be read The value is calculated from the SCRAMBLING CODE IEC IEEE bus command SOUR W3GP BST3 SSCG TPC PATTERN READ OUT MODE TPC bits are used for W CDMA to inform the called station if the transmit power is being increased or decreased The ...

Страница 264: ...performed with a quasi constant power In conjunction with the option Mis Use TPC for output power control see below the TPC Read Out Mode can also be used for generation of various output power profiles IEC IEEE bus command SOUR W3GP BST2 TPC READ CONT MISUSE TPC FOR OUTPUT POWER CONTROL TPC bits are used for W CDMA to inform the called station if the transmit power is being increased or decreased...

Страница 265: ...gnal is to be simulated can be specified OFF no transmit diversity ANTENNA 1 calculate antenna signal for antenna 1 and display result ANTENNA 2 calculate antenna signal for antenna 2 and display result IEC IEEE bus command SOUR W3GP BST1 TRAN DIV ANT1 NUMBER OF PAGE INDICATORS PER FRAME The number of page indicators per frame in the page indication channel PICH can be defined thanks to this menu ...

Страница 266: ...d cannot be edited Not all parameters in the table can be edited This depends on the type of channel SYMBOL RATE Symbol rate of channel in ksps The value range of symbol rate is modified depending on the channel type For example the P CPICH is fixed at a symbol rate of 15 ksps by the 3GPP standard but all symbol rates between 7 5 ksps and 960 ksps are available for a DPCH IEC IEEE bus command SOUR...

Страница 267: ...0 to 149 The parameter is accessible for DPCHs only IEC IEEE bus command SOUR W3GP BST3 CHAN3 TOFF 5 PILOT LENGTH Length of the pilot field in the slot structure of a channel The value range of this parameter depends on the symbol rate For DPCHs the value range is 2 bits to max 16 bits for S_CCPCH 0 8 and 16 bits To achieve a constant length of the slot the data fields are lengthened or shortened ...

Страница 268: ...DE Mode in which the mobile station is to operate Depending on the mode the lower part of the panel changes Only the parameters relevant to the current mode are displayed The following modes can be selected PRACH only In this mode the MS generates a single Physical Random Access Channel PRACH This channel is required when a call is set up from the mobile to the base station The specific parameters...

Страница 269: ...efer to section 2 14 1 1 The value range of the scrambling code is 0 to FF FFFF IEC IEEE bus command SOUR W3GP MST1 SCOD H1 TPC Selects the data source for the TPC field ALL0 All 0s are continuously entered in the TPC field IEC IEEE bus command SOUR W3GP BST1 CHAN2 TPC ZERO ALL1 All 1s are continuously entered in the TPC field IEC IEEE bus command SOUR W3GP BST2 CHAN129 TPC ONE PATT The TPC field ...

Страница 270: ...ntinued with 1 bits Single alt 01 A bit is taken for each slot from the up to 24 bit long bit pattern for the Transmitter Power Control field of the slots and entered the bit stream several times depending on the symbol rate The specified bit pattern is used once then the TPC sequence is continued with 0 and 1 bits alternately multiplied depending on the symbol rate e g 00001111 Single alt 10 A bi...

Страница 271: ...This field permits to determine the signature to be used for the PRACH Values between 0 and 15 are possible IEC IEEE bus command SOUR W3GP MST2 PRAC SIGN 2 ACCESS SLOT Shifting of the starting time of the PRACH The value range is 0 to 14 Shifting of the starting time in time slots can be calculated as follows 2 Access Slot IEC IEEE bus command SOUR W3GP MST2 PRAC ASLO 2 SYMBOL RATE Symbol rate of ...

Страница 272: ...of the preamble If for example a preamble power of 0 dB a repetition of 3 and a power step of 3 dB are set the following power sequence will be generated IEC IEEE bus command SOUR W3GP MST2 PCPC PPOW STEP 3 DATA PART POWER Power of the data components of the PCPCH The value range of the power is from 60 dB to 0 dB IEC IEEE bus command SOUR W3GP MST2 PCPC DPOW 3 CONTROL PART POWER Power of the cont...

Страница 273: ... FBI field ALL0 All 0s are continuously entered in the FBI field IEC IEEE bus command SOUR W3GP MST2 PCPC FBI DATA ZERO ALL1 All 1s are continuously entered in the FBI field IEC IEEE bus command SOUR W3GP MST2 PCPC FBI DATA ONE PATT The FBI field is cyclically filled with a pattern that is up to 24 bits long A special pattern editor is displayed IEC IEEE bus commands SOUR W3GP MST2 PCPC FBI DATA P...

Страница 274: ...OFF SLOT FORMAT Setting the TFCI STATE and FBI MODE parameters according to the following table SLOT FORMAT TFCI STATE FBI MODE 0 ON OFF 1 OFF OFF 2 ON 1bit 3 OFF 1bit 4 OFF 2bits 5 ON 2bits TFCI STATE ON The TFCI field is used in the frame IEC IEEE bus SOUR W3GP MST1 DPCC TFCI STAT ON OFF The TFCI field is not used in the frame IEC IEEE bus SOUR W3GP MST2 DPCC TFCI STAT OFF Note Any changes of th...

Страница 275: ...s commands SOUR W3GP MST2 DPCC FBI DATA PATT SOUR W3GP MST2 DPCC FBI PATT H3F 8 MISUSE TPC FOR OUTPUT POWER CONTROL TPC bits are used for W CDMA to inform the called station if the transmit power is being increased or decreased If this option is activated the given pattern is being misused to vary one s own transmit power over time For each slot one bit of this pattern is taken to increase bit 1 o...

Страница 276: ... ON S Rate 30 k Ch Code 32 State OFF State OFF State OFF State OFF State OFF 60 ksps State ON S Rate 60 k Ch Code 16 State OFF State OFF State OFF State OFF State OFF 120 ksps State ON S Rate 120 k Ch Code 8 State OFF State OFF State OFF State OFF State OFF 240 ksps State ON S Rate 240 k Ch Code 4 State OFF State OFF State OFF State OFF State OFF 480 ksps State ON S Rate 480 k Ch Code 2 State OFF ...

Страница 277: ...a special editor The length is limited to 24 digits IEC IEEE bus SOUR W3GP MST3 DPDC3 DATA PN15 SOUR W3GP MST3 DPDC3 DATA PATT H1234 15 2 14 2 7 WCDMA 3GPP Multi Channel Edit Menu When MULTI CHANNEL EDIT is selected a submenu in which several DPCHs can be configured is opened This menu item is only available for base stations Fig 2 124 DIGITAL STD WCDMA 3GPP BS CONFIGURATION MULTI CHANNEL EDIT men...

Страница 278: ...E bus commands SOUR W3GP MCH DATA PN9 SOUR W3GP MCH DATA PATT HFFFF 16 TIMING OFFSET TIMING OFFSET STEP A value 0 causes the source symbols to be shifted prior to spreading An offset of 1 for instance is recommended to obtain a lower crest factor The absolute starting time of frames slot 0 is shifted relative to the start of the scrambling code sequence by TOffset 256 chips This means that the res...

Страница 279: ... codes with a fixed step width are assigned to the various code channels Power profiles via the code axis can be created in the same way with power and power step The timing offset and timing offset step parameters can be used to change the relative slot timings of the channels so changing the crest factor of the signal see section 2 14 3 4 2 14 2 8 WCDMA 3GPP Display of Channel Graph Menu The cha...

Страница 280: ...ger spreading factor in the same code branch If channelization codes of this type are used at the same time the signals of associated code channels will be mixed up to such an extent that they could not be separated in the receiver and orthogonality would be lost Fig 2 126 Code tree of channelization codes Example If in Fig 2 126 code c2 1 is already used the remaining branch is blocked with c4 1 ...

Страница 281: ...in ascending channel numbers showing a domain conflict in a row with a lower index are indicated with a warning symbol to the left of STATE A domain conflict occurs when the assigned domains of different channel rows overlap The assigned code domain of a channel is calculated from the symbol rate of the channel the minimum possible symbol rate depending on the link direction the chip rate and the ...

Страница 282: ... is unfavourable see sections 2 14 3 3 and 2 14 3 4 High crest factors entail two basic problems 1 The nonlinearity of the power amplifier compression causes intermodulation which expands the spectrum spectral regrowth 2 Since the level in the D A converter is relative to the maximum value the average value is converted with a relatively low resolution This results in a high quantization noise Bot...

Страница 283: ...s average crest 30 ksps Downlink 128 DPCHs average crest 30 ksps 100 9 89 dB 14 7 dB 10 9 dB 21 7 dB 80 8 86 dB 12 9 dB 9 39 dB 20 2 dB 50 7 50 dB 10 1 dB 8 29 dB 16 9 dB 20 5 50 dB 6 47 dB 6 23 dB 12 5 dB 10 5 34 dB 6 06 dB 5 80 dB 9 57 dB 5 5 34 dB 6 06 dB 5 80 dB 8 17 dB Effect of clipping on the constellation shown by way of a 4 DPCH configuration Fig 2 131 Constellation at clipping level 100 ...

Страница 284: ...a 0 667 ms slot clock a 10 ms radio frame clock a marker signal to identify the periodic repetition of the generated chip sequence a marker signal to identify the periodic repetition of the generated enhanced chip sequence only available if Option SMIQB48 is installed a marker signal to identify a restart of the system frame number SFN Restart after 4096 frames only available if Option SMIQB48 is ...

Страница 285: ...NCE PERIOD OUT1 2 POL POS OUT DELAY 0 CLOCK SOURCE INT CLOCK DELAY 0 00 SEQUENCE LENGTH 1 Default settings for DOWN FORWARD Link Para Predef settings CHANNELS FOR SYNC ON SCCPCH 60 ksps NO OF DPCH 3 SYMBOL RATE 30 ksps CREST MINIMUM Base station parameters Table 2 25 Default values for base station parameters Parameter BS1 BS2 BS3 BS4 STATE OFF OFF OFF OFF SCRAMBLING CODE STATE ON ON ON ON SCRAMBL...

Страница 286: ...IMING OFFSET 0 TIMING OFFSET STEP 0 TPC ALL 0 0 MULTI CODE STATE OFF STATE ON Channel table parameters SYMBOL RATE 15 ksps if possible otherwise min permissible rate CHAN CODE 0 if possible otherwise min permissible code POWER 0 dB DATA PN15 TIMING OFFSET 0 PILOT LENGTH 4 bit if possible otherwise min permissible length TPC ALL0 0 MC STATE OFF DATA PATTERN 0000 0000 0000 0000 TPC PATTERN 0000 0000...

Страница 287: ...ll 0 All 0 All 0 All 0 Parameter PRACH only mode PREAMBLE REPETITION 1 PREAMBLE POWER 0 dB DATA PART POWER 0 dB CONTROL PART POWER 0 dB Message Part Length 1 SIGNATURE 0 ACCESS SLOT 0 SYMBOL RATE 30 ksps DATA PN15 DATA PATTERN 0000 0000 0000 0000 TFCI 0 Parameter PCPCH only mode PREAMBLE REPETITION 1 PREAMBLE POWER 0 dB PREAMBLE POWER STEP 0 dB DATA PART POWER 0 dB CONTROL PART POWER 0 dB MESSAGE ...

Страница 288: ...ls to support the user in generating signals with certain characteristics 2 14 3 1 3GPP W CDMA Signals in Time Domain For information on 3GPP W CDMA signals in the frequency domain refer to section 2 14 3 2 Downlink The two spreading methods for SCHs and the remaining downlink channel types are explained for the channels P CCPCH P SCH and S SCH These three channels were referred to as Perch in pre...

Страница 289: ...CPCH P SCH and S SCH in time domain zoomed The right section i e the 9 PCCPCH symbols is spread as described in Fig 2 90 You can see that for each symbol clock one of the two components is 0 and the other one 2 a certain inaccuracy results from the root cosine filter used This is the standard spreading scheme as it is also used for S CCPCH DPCH and all other downlink channel types The left section...

Страница 290: ...CH and S SCH The four circular areas are due to P CCPCH QPSK the linear areas diagonals to SCH BPSK The spreading constellation diagram of P CPICH S CPICH S CCPCH PICH AP AICH AICH PDSCH DL DPCCH and DPCH are identical to the spreading constellation diagram of P CCPCH Envelopes The following figures are based on a power of 0 dB To eliminate smearing of the amplitude due to the root cosine filter a...

Страница 291: ...sult The following diagram shows the signal with the input pattern 1010 Fig 2 139 Envelope of AICH four subchannels The DL DPCCH is used during transmission of the PCPCH to readjust the output power of the mobile Since there is no data transfer to the mobile in this phase the DL DPCCH is based on a DPCH 7 5 ksps without TFCI the data fields of which are blanked DTX Fig 2 140 Envelope of DL DPCCH A...

Страница 292: ...ared to the DPCH constellation diagram this diagram is shifted and the constellation points only have half the amplitude Fig 2 142 Constellation of a DPDCH DPCCH channel Note A suitable modification of the PN sequences HPSK in the uplink eliminates 50 of all zero crossings which in contrast to the downlink causes a deformation of the constellation ranges If DPCCH and DPDCH are combined the constel...

Страница 293: ...CH Envelopes To eliminate smearing of the amplitude due to the root cosine filter all envelopes are calculated using a square wave filter The DPCCH and the DPDCHs are continuous channels that feature a constant envelope during the complete sequence Note Section 2 14 2 6 Misuse TPC for output power control describes how to vary also the envelope of DPCCH and DPDCHs PRACH and PCPCH consist of one or...

Страница 294: ...channels This effect can be influenced by the choice of the channelization codes and is reduced with increasing period of observation i e higher averaging for the FFT settings 2 14 3 3 Effect of Data Source on the 3GPP W CDMA Signal The choice of the data sources is of vital importance for the signal characteristics Especially the constellation diagram and the crest factor can be modelled to a lar...

Страница 295: ...omparing any two lines of the channelization code matrix shows that 50 of the bits are identical and 50 are different orthogonal matrix Where the bits are identical the two channels furnish the same components where the bits are different the components cancel each other The I Q signal of this sum signal would then have the following characteristic Fig 2 150 Signal with two DPCHs same data in time...

Страница 296: ...erposition of the basic constellation Whether all possible points channel number 1 2 17 17 289 will be displayed depends on the data sequences and the sequence length Note In contrast to the last constellation diagrams the following diagrams were recorded with active receiver filter root cosine 0 22 This allows better differentiation of the individual points Setting of the receiver filter is descr...

Страница 297: ... with same Data Similar to section 2 14 3 3 2 there are strong cancellation effects and only points remain on the axes The position of the points also depends on the choice of the channelization codes The following diagram is an example for 16 channels channelization code 0 to 15 Fig 2 154 Constellation diagram of 16 DPCHs with same data In this case the crest factor is 16 17 dB The high value ari...

Страница 298: ...data bits including pilot and TPC are shifted against each other Note In contrast to earlier versions of the W CDMA standard or WinIQSIM the timing offset previously data offset is no longer defined in symbols but in units of 256 chips Thus shifting becomes independent of the spreading factor The worst case is thus eliminated the crest factor becomes smaller and the spread symbols are arranged as ...

Страница 299: ...els To enable a 3GPP W CDMA demodulator to restore the information of the individual channels from the sum signal only certain combinations of scrambling code sequences channel power and symbol rate and channelization codes are allowed 2 14 3 5 1 Ideal Scenario In an ideal scenario the measured channel power with code domain power analyzers is equal to the transmitted power setting value in the ch...

Страница 300: ...CDP analysis without compensation The transmitted channels are measured with an error of 0 2 dB For all other channels a power of approx 40 dB is determined These conditions still allow error free decoding of all transmitted channels 2 14 3 5 4 Effect of S CCPCH and the Other Downlink Channels Like a DPCH S CCPCH P CPICH S CPICH PDSCH PICH AICH and DL DPCCH are spread with the same symbol rate The...

Страница 301: ...al layer using a CDPA Even under worse conditions error free reconstruction of the bit stream can be made through channel coding 2 14 3 5 7 Effect of Symbol Rates and Channelization Code Numbers The channelization code generation method has the effect that with certain symbol rate channelization code combinations the identical spreading sequences Si Sq are generated This is always the case with ch...

Страница 302: ...as channel 2 at 480 ksps There is however no crosstalk to channel 3 Therefore the 480 ksps channel is detected with the original power and all bits can be restored Despreading of the 960 ksps channel however gives the following power distribution Fig 2 161 Non restorable DPCH channel Both channels synchronize with channel 1 despreading is no longer possible with these level conditions For despread...

Страница 303: ...MA standard Set a valid combination of scrambling code and 2 nd Search Code Group For details refer to 2 5 2 2 In 3 Appendix D a few test models are specified that have been designed for certain tests These scenarios are supplied as WinIQSIM setups They can be found in the 3GPP W CDMA TEST MODELS menu 2 14 3 6 2 Base Station with More Than 128 DPCHs To avoid the channel table becoming ambiguous a ...

Страница 304: ...ary scrambling codes are used orthogonality is impaired and a crosstalk is produced see section 2 14 3 5 6 This scrambling code can be entered for a BS If channels with different scrambling codes are to be simulated a division into several BSs is required as described under 2 14 3 6 2 Set several BSs according to 2 14 3 6 1 The special channels SCH CPICH will be activated in one BS only Set the de...

Страница 305: ...for testing a W CDMA receiver with the SMIQ This block shows the different functional blocks of the SMIQ with built in option SMIQB48 Blocks Long Sequences Channel Coding Bit Block Error Insertion OCNS and External Power Control are part of option SMIQB48 and will be described in detail Noise is available only if option SMIQB17 is built in For a description see section Noise Generator and Distorti...

Страница 306: ...ant Enhanced Functions downlink Fig 2 165 Menu DIGITAL STD WCDMA 3GPP Section Assistant Enhanced Functions uplink Assistant Enhanced Functions ENHANCED CHANNELS BS1 MS1 Call up of user menu for configuring the enhanced channels The menu item is only available with option SMIQB48 installed For more detailed information regarding this menu see section 2 15 3 OCNS CHANNELS Simulation of orthogonal ch...

Страница 307: ...sequences allow a physical BER measurement PN9 without a restart of the BER tester being required An enhanced channel with a length of 511 frames is to be set If the maximum length of 1022 frames is used BER measurements with channel coding and without restart as required for receiver tests to 1 3 4 are possible Compared to the clearly enhanced sequence length range max 13 frames for SMIQB45 optio...

Страница 308: ...ficial bit errors or block errors into the CRC checksum can be integrated in all data sources The required parameters can be found in section 2 15 3 1 5 The menu structure depends on the link direction Since there are only slight differences first the downlink and all common parameters are described in section 2 15 3 2 and then all uplink parameters ...

Страница 309: ... WCDMA 3GPP ENHANCED CHANNEL downlink ENHANCED CHANNELS STATE Switch for activating or deactivating the calculation of up to 4 enhanced channels on DGEN In the OFF state all the following menu parameters no longer influence the 3GPP W CDMA signal which is only calculated in MCOD ARB IEC IEEE bus command SOUR W3GP BST ENH STAT ON ...

Страница 310: ...one P CCPCH BCH and one DPCH to be generated as enhanced channels OFF instead of the 4 DPCHs IEC IEEE bus command SOUR W3GP BST ENH PCCP STAT ON With Enhanced P CCHCP BCH State On this may affect the structure of the other operating menus The channel table under Specific Enhanced Channel Settings contains the P CCPCH and a DPCH If the P CCPCH is activated under Specific Enhanced Channel Settings i...

Страница 311: ... for 20 ms of the P CCPCH i e 2 frames after channel coding The first field of such a data block is an 11 bit long field for the system frame number SFN The SFN is automatically incremented by 1 as stipulated in the standard from transport block to transport block equivalent to a step width of 2 frames due to the transport time interval length of 20 ms After 2048 transport blocks equivalent to 409...

Страница 312: ...NG TYPE INTERLEAVER 1 INTERLEAVER 2 CODING enhanced channel specific IEC IEEE bus command SOUR W3GP BST ENH CCOD ON CODING TYPE Setting the channel coding type of all enhanced channels The 3GPP specification currently stipulates 4 predefined MEASUREMENT channel coding types which differ in the input data bit rate to be processed 12 2 64 144 and 384 KBPS The additional AMR_CODER coding scheme gener...

Страница 313: ... BIT STAT ON NOMINAL BIT ERROR RATE Sets a user defined bit error rate in the range of 10 1 to 10 7 with which the bits can be inserted into the data fields of the enhanced channel timeslots Upon readout of the data source individual bits are inverted at random at a given error rate to simulate an erroneous signal Since the bit error rate set by the user may not be adhered to as a function of the ...

Страница 314: ...the mapping table controlled by the external power control signal which is queried at the beginning of the pilot field Since the number of mappings is limited the maximum dynamic range is restricted to 30 dB and the step width to min 0 25 dB The output power of each channel is thus limited to the POWER_START POWER_DOWN_RANGE POWER_START POWER_UP_RANGE range Note To obtain optimum signal quality th...

Страница 315: ...H POWER START enhanced channel specific POWER CONTROL enhanced channel specific IEC IEEE bus command SOUR W3GP BST ENH EPOW STAT ON POWER STEP Step width 0 25 to 6 0 dB by which with the external power control mechanism being switched on the channel powers of the activated enhanced channels in the timeslot grid are increased or decreased within the set dynamic range IEC IEEE bus command SOUR W3GP ...

Страница 316: ...esulting external power control dynamic range POWER UP RANGE POWER DOWN RANGE may be 30 dB at max which is why the POWER DOWN RANGE is limited as a function of the POWER UP RANGE IEC IEEE bus command SOUR W3GP BST ENH EPOW RANG DOWN 10 0 POWER CONTROL GRAPH With this menu parameter selected the display window is opened again and with external power control mechanism switched on the current deviati...

Страница 317: ... the hidden data list max 80 Mbit In addition to the free DGEN list memory the maximum sequence length crucially depends on the ENHANCED P CCPCH BCH state and the number of DPCHs ENHANCED P CCPCH BCH STATE OFF 1 DPCH 1022 frames 2 DPCHs 511 frames 3 DPCHs 341 frames 4 DPCHs 255 frames ENCHANCED P CCPCH BCH STATE ON SYMBOL RATE DPCH 30 ksps 2044 frames SYMBOL RATE DPCH 30 ksps 500 frames IEC IEEE b...

Страница 318: ...nnels are sent The resulting crest factor of the overall signal can be influenced The timing offset can be set in an interval of 256 chips IEC IEEE bus command SOUR W3GP BST ENH TOFF 1 PILOT LENGTH Sets the pilot field size in the timeslots of the corresponding downlink enhanced channels 2 4 8 or 16 depending on the symbol rate IEC IEEE bus command SOUR W3GP BST ENH PLEN BIT4 ...

Страница 319: ...S STATE switch is set to ON In the OFF state the following channel specific menu parameters are not effective CHAN CODE POWER START POWER CONTROL DATA TPC MULTI CODE In the higher BS1 menu the STATE parameter has to be updated in the channel table line determined by the ENHANCED CHANNEL NUMBER Note The enhanced channels cannot be activated individually in the uplink the required enhanced channels ...

Страница 320: ...0 dB with reference to the LEVEL indicated in the SMIQ display In the uplink the channel start powers are determined via the parameters POWER START DPCCH and POWER START DPDCH IEC IEEE bus command SOUR W3GP BST1 ENH CHAN11 POW STAR 30 0 POWER CONTROL Switch indicating the direction UP or DOWN with external power control mechanism activated with which the channel power of the corresponding downlink...

Страница 321: ...vated or deactivated with other dedicated channels All dedicated channels of a base station whose multicode switch is set to ON are trunked to form one virtual channel irrespective of whether they are declared as enhanced dedicated channels or as normal dedicated channels IEC IEEE bus command SOUR W3GP BST ENH CHAN1 MCOD OFF SELECT DATA LIST CURRENT DLIST01 Selects an available data list or genera...

Страница 322: ... 253 2 15 3 2 Uplink Only the uplink parameters are described here If the parameters of section 2 15 3 1 are also available in the uplink BST has to be replaced by MST for the corresponding remote control command Fig 2 172 DIGITAL STD WCDMA 3GPP ENHANCED CHANNELS STATE uplink menu ...

Страница 323: ... of all the activated enhanced channels can be increased The value POWER UP RANGE can be changed by POWER STEP If the dynamic range is exceeded the warning MAX POWER UP REACHED is displayed The resulting external power control dynamic range POWER UP RANGE POWER DOWN RANGE must not exceed 30 dB For this reason the POWER UP RANGE is limited as a function of the POWER DOWN RANGE IEC IEEE bus command ...

Страница 324: ...ameter is changed CODING TYPE or OVERALL SYMBOL RATE the associated parameter is adapted automatically IEC IEEE bus command SOUR W3GP MST ENH ORAT X2 DPDCH POWER Sets the channel power 60 dB to 0 dB of the DPDCHs Each active DPDCH is sent with this power If the EXTERNAL POWER CONTROL STATE switch is set to ON this power is also the start power for the power control Note Starting the ADJUST TOTAL P...

Страница 325: ...ndicating the symbol rates of the individual uplink enhanced channels 2 15 3 3 Display of External Power Control Mode of Four Enhanced Channels The current External Power Control mode of the four enhanced channels is displayed here The deviation of the channel power POW of the set POWER START caused by the external power control mechanism is displayed in graphical form The window is shown in the S...

Страница 326: ... RATE 4 enhanced channels This menu parameter is only effective after pressing EXECUTE IEC IEEE bus command SOUR W3GP BST OCNS COUN 10 OCNS SYMBOL RATE Sets the symbol rate of all OCNS channels in ksps This menu parameter is only effective after pressing EXECUTE IEC IEEE bus command SOUR W3GP BST OCNS SRAT D240K OCNS CREST The crest factor of the OCNS signal can be influenced by setting the channe...

Страница 327: ...d channels and offered to the user as default value If the user changes this value also the values for POWER START of the activated enhanced channels are adapted If all enhanced channels are inactive ENHANCED CH TOTAL POWER are set to 60 0 dB This menu parameter is only effective after pressing EXECUTE IEC IEEE bus command SOUR W3GP BST OCNS EPOW 10 0 EXECUTE The EXECUTE command is used to validat...

Страница 328: ...d in 1 other data also possible 11 Change to the DIGITAL STD WCDMA 3GPP OCNS CHANNELS menu 12 Set number of channels NUMBER OF CHANNELS to 60 A value for 1 is not given but a utilization of 50 for the code domain is recommended 13 Set SYMBOL RATE to 30 ksps A value is not given in 1 but normal voice channels are recommended 14 Select CREST MINIMUM 15 Set OCNS CHANNELS TOTAL POWER to 1 dB 16 Activa...

Страница 329: ...ase if two prime numbers are used for example The overall cycle length then becomes the product of the two sequence lengths The values in section 2 15 4 2 are selected so that the overall cycle length becomes a maximum 1022 13 frames 133 seconds Note To reduce the computation time for the signal it can be useful to use smaller sequence lengths 2 15 5 Additional MS Based On MS4 Similar to simulatin...

Страница 330: ...UMBER OF ADDITIONAL MS SCRAMBLING CODE STEP POWER OFFSET RELATIVE TO MS4 IEC IEEE bus command SOUR W3GP MST ADD STAT ON NUMBER OF ADDITIONAL MS Number of additional mobile stations 1 to 64 IEC IEEE bus command SOUR W3GP MST ADD COUNT 33 SCRAMBLING CODE STEP Initialization increment of uplink scrambling code generator for additional mobile stations The scrambling code value of the primary reference...

Страница 331: ...iate level can be set for uplink slots A burst type has to be defined to configure a slot The following burst types can be selected TCH a traffic channel burst with a different structure for uplink and downlink SHORT the so called shortened burst only available during uplink and ALL_DATA burst type for test purposes with freely programmable data contents in the selected slot The following internal...

Страница 332: ... Retriggering RETRIG can be inhibited for a settable number of symbols EXT RETRIGGER INHIBIT A trigger event can be executed manually or via the IEC IEEE bus using EXECUTE TRIGGER When a trigger event is executed a trigger signal is output at the TRIGOUT 3 output of SMIQ SMIQ also generates the following sync signals a frame clock at TRIGOUT 1 output a frame or multiframe clock at TRIGOUT 2 output...

Страница 333: ...ator is clearly defined by the number of registers and the feedback The following table describes all PRBS generators available Table 2 29 PRBS generators for NADC PRBS generator Length in bits Feedback after 9 bit 29 1 511 Register 4 0 11 bit 211 1 2047 Register 2 0 15 bit 215 1 32767 Register 1 0 16 bit 216 1 65535 Register 5 3 2 0 20 bit 220 1 1048575 Register 3 0 21 bit 221 1 2097151 Register ...

Страница 334: ...lected slot and that they are reproducible the buffer of the RS 232 transmitter and receiver has to be deleted A triggered start has to follow The following setting sequence is required in the DIGITAL STD NADC menu 1 Carry out desired settings in menu 2 Select data source SERDATA for the data field of the slot using SELECT SLOT 3 Make connection to external data source but do not yet start externa...

Страница 335: ...SMIQ equipped with Modulation Coder SMIQB20 and Data Generator SMIQB11 STATE Switch on off of Digital Standard NADC modulation Vector Modulation or Digital Modulation will be switched off automatically IEC IEEE bus command SOUR NADC STAT ON MODULATION Opens a window for setting the modulation parameters FREQ 100 000 000 0 MHz FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT ...

Страница 336: ...Switch on off of low distortion mode After switch on the level of the IQ baseband signals is reduced by 3 dB In some cases this might reduce undesired intermodulation products OFF is normally the more favourable setting IEC IEEE bus command SOUR NADC LDIS OFF TRIGGER MODE Opens a window for selecting the trigger mode AUTO The NADC signals are continuously transmitted in the activated slots IEC IEE...

Страница 337: ...NHIBIT 0 Symb TRIGGER OUT2 DELAY 0 Symb TRIGGER OUT2 PERIOD 1 Frames LEVEL 30 0 dBm PEP 27 6 dBm Fig 2 178 Menu DIGITAL STD NADC_TRIGGER SMIQ equipped with Modulation Coder SMIQB20 and Data Generator SMIQB11 TRIGGER TRIGGER SOURCE Selection of trigger source EXT The NADC signal generation is started by the active slope of an external trigger signal The polarity the trigger threshold and the input ...

Страница 338: ...ger signal at TRIGOUT 2 output compared with beginning of frame IEC IEEE bus SOUR NADC TRIG OUTP DEL 2 TRIGGER OUT2 PERIOD Input value of output signal period at TRIGOUT 2 output given in frames IEC IEEE bus SOUR NADC TRIG OUTP PER 1 CLOCK Opens a window for selecting the clock source and for setting a delay FREQ 100 000 000 0 MHz FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OU...

Страница 339: ...DE SYMB DELAY Setting the delay of generated modulation signal to an external clock This can be used for example for synchronization with a second unit to achieve time synchronization between the modulation signals of the two units IEC IEEE bus command SOUR NADC CLOC DEL 0 5 POWER RAMP CONTROL Opens a window for setting the envelope control especially for the rising and falling ramp at the beginni...

Страница 340: ...HAP LIN RAMP DELAY Input value for a shift of the envelope characteristic to the modulated signal A positive value causes a delay of the envelope The values are set in the units of the symbol length IEC IEEE bus SOUR NADC PRAM DEL 0 1 RISE OFFSET Input value for a positive or negative offset of the rising ramp of the envelope at the beginning of a slot IEC IEEE bus SOUR NADC PRAM ROFF 1 FALL OFFSE...

Страница 341: ...TD NADC SAVE RCL FRAME SMIQ equipped with Modulation Coder SMIQB20 and Data Generator SMIQB11 SAVE RCL FRAME GET PREDEFINED FRAME Loads a factory set frame configuration DN_TCH Downlink traffic channels in all slots UP1TCH Uplink traffic channels in slot 1 IEEE SOUR NADC FLIS PRED LOAD dn_tch RECALL FRAME Loads a frame configuration saved by the user IEC IEEE bus SOUR NADC FLIS LOAD name SAVE FRAM...

Страница 342: ...d in which the data contents belonging to this slot can be defined The content of the window depends on whether an UPLINK or DOWNLINK was selected under LINK DIRECTION If the cursor is placed onto a slot in the diagram it may be switched on and off by pressing one of the unit keys toggle function Menu selection BURST TYPE TCH FREQ 100 000 000 0 MHz FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD...

Страница 343: ...EV FULL OFF Only 1s will be sent IEC IEEE bus SOUR NADC SLOT2 LEV OFF Parameter SLOT LEVEL is omitted since the NADC base station in downlink always sends with the same power in each slot SET DEFAULT Resets the subsequent parameters to the factory set values IEC IEEE bus command SOUR NADC SLOT8 PRES G UPLINK only Display of data contents in the 6 bit data field Guard in hexadecimal form R UPLINK o...

Страница 344: ...lor code field in hexadecimal form SMIQ does not perform any coding but directly accepts the input data 013 hex is preset This corresponds to a value of 1 for the uncoded colour code DVCC IEC IEEE bus SOUR NADC SLOT2 CDVC HFFF RSVD DOWNLINK only Input value for the 12 bit Reserved field in hexadecimal form IEC IEEE bus SOUR NADC SLOT2 CDVC HFFF SELECT DATA LIST Opens a window for selecting a store...

Страница 345: ... to configure the selected slot ALL DATA Burst type for testing with freely programmable data contents IEC IEEE bus SOUR NADC SLOT2 TYPE ADAT SLOT LEVEL UPLINK only Selection of level for selected slot OFF Maximum attenuation IEC IEEE SOUR NADC SLOT2 LEV OFF FULL The level corresponds to the value indicated on the SMIQ LEVEL display IEC IEEE SOUR NADC SLOT2 LEV FULL ATTEN The level is reduced by t...

Страница 346: ... only available with LINK DIRECTION UPLINK FREQ 100 000 000 0 MHz FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES NADC PHS IS95 NADC PDC GSM SLOT G R SY CD SY CD V SY CD W SY CD X SY CD Y SY G2 1 UP 6 6 28 12 28 12 4 28 12 8 28 12 12 28 12 16 28 44 BURST TYPE SHORT SLOT LEVEL OFF ATTEN FULL SET DEFAULT BURST CONTENTS G 00 H R 00 H SYNC A91 DE4A ...

Страница 347: ...p in hexadecimal form SYNC Input value for the sync word in hexadecimal form Depending on the selected slot the following sync words are predefined according to the NADC standard SLOT 1 A91DE4A SLOT 2 A9D127A SLOT 3 C7E3C0C SLOT 4 342C3F3 SLOT 5 13E23D1 SLOT 6 DC2EC1D IEC IEEE bus SOUR NADC SLOT2 SYNC A91EE4A CDVCC Input value for the 12 bit Coded digital verification color code field in hexadecim...

Страница 348: ...burst type for simulation of a sync channel VOX a burst type which is only available in uplink for simulating a communication channel in speech intervals ALL_DATA burst type for test purposes with freely programmable data contents in the selected slot For TCH and VOX bursts SMIQ supports the generation of superframes with a length of 18 frames The frame position of the so called housekeeping chann...

Страница 349: ...R DELAY Retriggering RETRIG can be inhibited for a settable number of symbols EXT RETRIGGER INHIBIT A trigger event can be executed manually or via the IEC IEEE bus using EXECUTE TRIGGER When a trigger event is executed a trigger signal is output at the TRIGOUT 3 output of SMIQ SMIQ also generates the following sync signals a frame clock at TRIGOUT 1 output a frame or multiframe clock at TRIGOUT 2...

Страница 350: ...enerator is clearly defined by the number of registers and the feedback The following table describes all PRBS generators available Table 2 30 PRBS generators for PDC PRBS generator Length in bits Feedback after 9 bit 29 1 511 Register 4 0 11 bit 211 1 2047 Register 2 0 15 bit 215 1 32767 Register 1 0 16 bit 216 1 65535 Register 5 3 2 0 20 bit 220 1 1048575 Register 3 0 21 bit 221 1 2097151 Regist...

Страница 351: ...lected slot and that they are reproducible the buffer of the RS 232 transmitter and receiver has to be deleted A triggered start has to follow The following setting sequence is required in the DIGITAL STD PDC menu 1 Carry out desired settings in menu 2 Select data source SERDATA for the data field of the slot using SELECT SLOT 3 Make connection to external data source but do not yet start external...

Страница 352: ...MIQ equipped with Modulation Coder SMIQB20 and Data Generator SMIQB11 STATE Switch on off of Digital Standard PDC modulation Vector Modulation or Digital Modulation will be switched off automatically IEC IEEE bus command SOUR PDC STAT ON MODULATION Opens a window for setting the modulation parameters FREQ 100 000 000 0 MHz FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWE...

Страница 353: ...witch on off of low distortion mode After switch on the level of the IQ baseband signals is reduced by 3 dB In some cases this might reduce undesired intermodulation products OFF is normally the more favourable setting IEC IEEE bus command SOUR PDC LDIS OFF TRIGGER MODE Opens a window for selecting the trigger mode AUTO The PDC signals are continuously transmitted in the activated slots IEC IEEE b...

Страница 354: ...GER INHIBIT 0 Symb TRIGGER OUT2 DELAY 0 Symb TRIGGER OUT2 PERIOD 1 Frames LEVEL 30 0 dBm PEP 27 4 dBm Fig 2 187 Menu DIGITAL STD PDC_TRIGGER SMIQ equipped with Modulation Coder SMIQB20 and Data Generator SMIQB11 TRIGGER TRIGGER SOURCE Selection of trigger source EXT The PDC signal generation is started by the active slope of an external trigger signal The polarity the trigger threshold and the inp...

Страница 355: ...igger signal at TRIGOUT 2 output compared with beginning of frame IEC IEEE bus SOUR PDC TRIG OUTP DEL 2 TRIGGER OUT2 PERIOD Input value of output signal period at TRIGOUT 2 output given in frames IEC IEEE bus SOUR PDC TRIG OUTP PER 1 CLOCK Opens a window for selecting the clock source and for setting a delay FREQ 100 000 000 0 MHz FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OU...

Страница 356: ...ODE SYMB DELAY Setting the delay of generated modulation signal to an external clock This can be used for example for synchronization with a second unit to achieve time synchronization between the modulation signals of the two units IEC IEEE bus command SOUR PDC CLOC DEL 0 5 POWER RAMP CONTROL Opens a window for setting the envelope control especially for the rising and falling ramp at the beginni...

Страница 357: ...to the modulated signal A positive value causes a delay of the envelope The values are set in the units of the symbol length IEC IEEE bus SOUR PDC PRAM DEL 0 1 RISE OFFSET Input value for a positive or negative offset of the rising ramp of the envelope at the beginning of a slot IEC IEEE bus SOUR PDC PRAM ROFF 1 FALL OFFSET Input value for a positive or negative offset of the falling ramp of the e...

Страница 358: ...ata Generator SMIQB11 SAVE RCL FRAME GET PREDEFINED FRAME Loads a factory set frame configuration DN_TCH Downlink traffic channels in all slots UP0_TCH Uplink traffic channels in slot 0 IEEE SOUR PDC FLIS PRED LOAD dn_tch RECALL FRAME Loads a frame configuration saved by the user IEC IEEE bus SOUR PDC FLIS LOAD name SAVE FRAME Saves a user defined frame configuration IEC IEEE bus SOUR PDC FLIS STO...

Страница 359: ...is slot can be defined The content of the window depends on whether an UPLINK or DOWNLINK was selected under LINK DIRECTION If the cursor is placed onto a slot in the diagram it may be switched on and off by pressing one of the unit keys toggle function Menu selection BURST TYPE TCH FREQ 100 000 000 0 MHz FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UT...

Страница 360: ...SLOT LEVEL is omitted since the NADC base station in downlink always sends with the same power in each slot SET DEFAULT Resets the subsequent parameters to the factory set values IEC IEEE bus command SOUR PDC SLOT8 PRES SCRAMBLE Switch on off of scrambling function Scrambling with the continuous scramble sequence from a PN9 generator is applied to the data fields DATA SF and SACCH IEC IEEE bus SOU...

Страница 361: ... to the next The following data sources are available PN PRBS data according to CCITT with periods between 2 9 1 and 2 23 1 IEC IEEE SOUR PDC SLOT3 DATA PN15 DLIST Data from a programmable data list IEC IEEE SOUR PDC SLOT3 DATA DLIS SERDATA Data from data input SER DATA IEC IEEE SOUR PDC SLOT3 DATA SDAT SYNC Input value for the 20 bit sync word in hexadecimal form Depending on the selected slot th...

Страница 362: ...a field Color code IEC IEEE bus command SOUR PDC SLOT2 CCOD HFF SF Input value of the data field Steal Flag IEC IEEE bus command SOUR PDC SLOT2 SF H0 SACCH Selection of data source for SACCH field Slow Associated Control Channel PN PRBS data according to CCITT with periods between 2 9 1 and 2 23 1 IEC IEEE SOUR PDC SLOT3 SACC PN15 DLIST Data from a programmable data list IEC IEEE SOUR PDC SLOT3 SA...

Страница 363: ...ies a list range FILL Fills the range with filler pattern INSERT Inserts a list range at a different position of the list DELETE Deletes a list range EDIT VIEW Edits or views the list Menu selection BURST TYPE ALL_DATA FREQ 100 000 000 0 MHz FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES PDC PHS IS95 NADC PDC GSM LEVEL 30 0 dBm PEP 27 4 dBm POW...

Страница 364: ... IEC IEEE bus SOUR PDC SLOT2 LEV FULL OFF Only 1s will be sent IEC IEEE bus SOUR PDC SLOT2 LEV OFF Parameter SLOT LEVEL is omitted since the NADC base station in downlink always sends with the same power in each slot R UPLINK only Display of data contents in the 6 bit data field Ramp in hexadecimal form G UPLINK only Display of data contents in the 6 bit data field Guard in hexadecimal form DATA S...

Страница 365: ...K SMIQ equipped with Modulation Coder SMIQB20 and Data Generator SMIQB11 SELECT SLOT SYNC BURST TYPE Selection of burst type used to configure the selected slot SHORT Shortened Burst IEC IEEE bus command SOUR PDC SLOT2 TYPE SYNC SLOT LEVEL UPLINK only Selection of level for selected slot OFF Maximum attenuation IEC IEEE SOUR PDC SLOT2 LEV OFF FULL The level corresponds to the value indicated on th...

Страница 366: ...ord Uplink Sync Word 0 2F94D06B D06B2F94 1 1D4EE2B1 E2B11D4E 2 70168FE9 8FE97016 3 83527CAD 7CAD8352 4 3678C987 C9873678 5 48D8B727 B72748D8 According to the standard the sync words of the uplink are the inverted sync words of the downlink IEC IEEE bus SOUR PDC SLOT2 SYNC HE2B11D4F SI Selection of data source for Sync Information field The data in each of the three SI fields are identical PN PRBS ...

Страница 367: ... CHANGE DATA SELECT DATA LIST CURRENT R STDM COPY CURRENT DATA LIST DELETE DATA LIST EDIT DATA LIST LEVEL 30 0 dBm PEP 27 4 dBm POWE SLOT SAVE LINK RATE SELE EDIT 0 VO Fig 2 194 Menu DIGITAL STD PDC SELECT SLOT LINK DIRECTION UPLINK SMIQ equipped with Modulation Coder SMIQB20 and Data Generator SMIQB11 SELECT SLOT VOX UPLINK ONLY BURST TYPE Selection of burst type used to configure the selected sl...

Страница 368: ...itched on RCH data instead of SACCH data will be sent in 2 slots The first of the two RCH blocks is fixed in the first slot of the superframe the position of the second can be set IEC IEEE bus SOUR PDC SLOT2 SFR STAT ON RCH POSITION Input value for the position of the second RCH block The input field is only displayed if SUPERFRAME is switched on IEC IEEE bus SOUR PDC SLOT2 SFR RCHP 10 G Display o...

Страница 369: ...ciated Control Channel PN PRBS data according to CCITT with periods between 2 9 1 and 2 23 1 IEC IEEE SOUR PDC SLOT3 SACC PN15 DLIST Data from a programmable data list IEC IEEE SOUR PDC SLOT3 SACC DLIS SERDATA Data from data input SER DATA IEC IEEE SOUR PDC SLOT3 SACC SDAT RCH Selection of data source for the RCH data field RCH data replace SACCH data in certain slots of a superframe The input fie...

Страница 370: ...ypes can be selected NORM the so called normal burst DUMMY burst type with a defined data pattern according to GSM standard and ALL_DATA burst type for test purposes with freely programmable data contents EDGE the so called EDGE Normal Burst The following internal modulation sources are available different PRBS generators with a sequence length between 2 9 1 and 2 23 1 and data lists i e freely pr...

Страница 371: ... EXT RETRIG can be inhibited for a settable number of symbols EXT RETRIGGER INHIBIT A trigger event can be executed manually using EXECUTE TRIGGER or via the IEC IEEE bus When a trigger event is executed a trigger signal is output at the TRIGOUT 3 output of SMIQ SMIQ also generates the following sync signals a slot or frame clock at TRIGOUT 1 output with settable position in the frame a frame or m...

Страница 372: ...r is clearly defined by the number of registers and the feedback The following table describes all PRBS generators available Table 2 31 PRBS generators for GSM PRBS generator Length in bits Feedback after 9 bit 29 1 511 Register 4 0 11 bit 211 1 2047 Register 2 0 15 bit 215 1 32767 Register 1 0 16 bit 216 1 65535 Register 5 3 2 0 20 bit 220 1 1048575 Register 3 0 21 bit 221 1 2097151 Register 2 0 ...

Страница 373: ...he selected slot and that they are reproducible the buffer of the RS 232 transmitter and receiver has to be deleted A triggered start has to follow The following setting sequence is required in the DIGITAL STD GSM EDGE menu 1 Carry out desired settings in menu 2 Select data source SERDATA for the data field of the slot using SELECT SLOT 3 Make connection to external data source but do not yet star...

Страница 374: ...tal Standard GSM EDGE modulation Vector Modulation or Digital Modulation will be switched off automatically IEC IEEE bus command SOUR GSM STAT ON MODULATION Opens a window for setting the modulation parameters Fig 2 196 Menu DIGITAL STD GSM EDGE MODULATION SMIQ equipped with Modulation Coder SMIQB20 and Data Generator SMIQB11 MODULATION SET TO STANDARD Sets the subsequent modulation parameters to ...

Страница 375: ... 8PSK EDGE In contrast to the modulation types for GSM the one for EDGE has three bits per symbol FILTER TYPE The filter for EDGE is displayed It is permanently set to GAUSS LINEAR TRIGGER MODE Opens a window for selecting the trigger mode AUTO The GSM signals are continuously transmitted in the activated slots IEC IEEE bus command SOUR GSM SEQ AUTO RETRIG The GSM signals are continuously transmit...

Страница 376: ...the TRIGIN input can be modified in menu DIGITAL MOD EXT INPUTS INT A trigger event can be executed by EXECUTE TRIGGER IEC IEEE bus SOUR GSM TRIG SOUR EXT EXT TRIGGER DELAY Setting the number of symbols by which an external trigger signal is delayed before it starts the GSM signal generation This is used for setting the time synchronization between the SMIQ and the DUT IEC IEEE bus SOUR GSM TRIG D...

Страница 377: ...e default value of 270 833 ksps for GSM EDGE is used as the symbol rate in the Modulation menu FRAME 4 615 ms frame clock IEC IEEE bus command SOUR GSM TRIG OUTP2 FRAM TRIGGER OUT 1 2 DELAY Input value of delay of trigger signal at TRIGOUT 2 output compared with beginning of slot or frame IEC IEEE bus SOUR GSM TRIG OUTP DEL 2 TRIGGER OUT2 PERIOD Input value of output signal period at TRIGOUT 2 out...

Страница 378: ...tting the delay of generated modulation signal to an external clock This can be used for example for synchronization with a second unit to achieve time synchronization between the modulation signals of the two units IEC IEEE bus SOUR GSM CLOC DEL 0 5 POWER RAMP CONTROL Opens a window for setting the envelope control especially for the rising and falling ramp at the beginning and end of a slot Fig ...

Страница 379: ...or negative offset of the rising ramp of the envelope at the beginning of a slot IEC IEEE bus SOUR GSM PRAM ROFF 1 FALL OFFSET Input value for a positive or negative offset of the falling ramp of the envelope at the end of a slot IEC IEEE bus SOUR GSM PRAM FOFF 1 SLOT ATTENUATION Input value in dB for the level reduction of all active slots whose SLOT LEVEL was set to ATTEN Menu SELECT SLOT allows...

Страница 380: ...OUR GSM FLIS STOR name DELETE FRAME Deletes a frame configuration saved by the user IEC IEEE bus SOUR GSM FLIS DEL name SELECT SLOT Selection of one of 8 possible slots When selecting the slot a window is opened in which the data contents belonging to this slot can be defined If the cursor is placed onto a slot in the diagram it may be switched on and off by pressing one of the unit keys toggle fu...

Страница 381: ...TA connector It can be used to perform a frequency hop mode in the LIST MODE see section List Mode IIEEE bus command SOUR GSM SLOT1 HOPP TRIG TAIL Display of data contents in the 3 bit data field Tail The tail bits are set to 000 according to the GSM standard DATA Selection of data source for DATA fields These fields are regarded as a continuous field i e a pseudo random sequence is fully continue...

Страница 382: ...ns a window for selecting a stored data list or for generating a new list COPY CURRENT DATA LIST TO Stores the current data list under a different name DELETE DATA LIST Deletes a data list EDIT DATA LIST Opens a window for editing a data list bit by bit The available storage capacity and the length of the current list is displayed in parameters FREE and LEN see also Section List Editor COPY Copies...

Страница 383: ... the value set under SLOT ATTENUATION IEC IEEE SOUR GSM SLOT2 LEV ATT TAIL Display of data content in the 3 bit data field Tail The tail bits are set to 000 according to the GSM standard MIXED Display of data content of the mixed bit field It has a data content stipulated by GSM 05 02 the so called mixed bits 11111011011101100000101001001110000010010001000000 01111100011100010111000101110001010111...

Страница 384: ...vel is reduced by the value set under SLOT ATTENUATION IEC IEEE SOUR GSM SLOT2 LEV ATT DATA Selection of data source for DATA fields These fields are regarded as a continuous field i e a pseudo random sequence is fully continued from one DATA field to the next The following data sources are available PN PRBS data according to CCITT with periods between 2 9 1 and 2 23 1 IEC IEEE SOUR GSM SLOT3 DATA...

Страница 385: ...d in the LEVEL display of SMIQ IEC IEEE bus SOUR GSM SLOT2 LEV FULL ATTEN The level is reduced by the value set under SLOT ATTENUATION IEC IEEE bus SOUR GSM SLOT2 LEV ATT SET DEFAULT Resets the following parameters to the factory selected values IEC IEEE bus command SOUR GSM SLOT1 PRES HOP TRIGGER Switches the HOP trigger signal on or off When set to ON a HOP signal is generated at the end of the ...

Страница 386: ...anges to the training sequence in binary form A modified training sequence is saved as USER sequence after SAVE FRAME was called IEC IEEE bus command SOUR GSM SLOT2 USER B011011 GUARD Display of data contents in the GUARD field in binary form The length of the field is 24 bits in slots 1 2 3 5 6 7 and 27 bits in slots 0 and 4 SELECT DATA LIST Opens a window for selecting a stored data list or gene...

Страница 387: ...ype has to be defined to configure a slot The following slot types can be selected FULL full slot simulation of a basic R32 physical channel DOUBLE double slot simulation of a high capacity R80 physical channel and ALL_DATA slot type for test purposes with arbitrarily programmable data contents in full slot format The following internal modulation sources are available different PRBS generators wi...

Страница 388: ...ope of the trigger signal or after a settable number of symbols EXT TRIGGER DELAY Retriggering RETRIG can be inhibited for a settable number of symbols EXT RETRIGGER INHIBIT A trigger event can be executed manually or via the IEC IEEE bus using EXECUTE TRIGGER When a trigger event is executed a trigger signal is output at the TRIGOUT 3 output of SMIQ SMIQ also generates the following sync signals ...

Страница 389: ...BS generator is clearly defined by the number of registers and the feedback The following table describes all PRBS generators available Table 2 32 PRBS generators for DECT PRBS generator Length in bits Feedback after 9 bit 29 1 511 Register 4 0 11 bit 211 1 2047 Register 2 0 15 bit 215 1 32767 Register 1 0 16 bit 216 1 65535 Register 5 3 2 0 20 bit 220 1 1048575 Register 3 0 21 bit 221 1 2097151 R...

Страница 390: ... the selected slot and that they are reproducible the buffer of the RS 232 transmitter and receiver has to be deleted A triggered start has to follow The following setting sequence is required in the DIGITAL STD DECT menu 1 Carry out desired settings in menu 2 Select data source SERDATA for the data field of the slot using SELECT SLOT 3 Make connection to external data source but do not yet start ...

Страница 391: ... 2 3 4 5 6 7 0 Fig 2 205 Menu DIGITAL STD DECT SMIQ equipped with Modulation Coder SMIQB20 and Data Generator SMIQB11 STATE Switch on off of Digital Standard DECT modulation Vector Modulation or Digital Modulation will be switched off automatically IEC IEEE bus command SOUR DECT STAT ON MODULATION Opens a window for setting some of the modulation parameters FREQ 100 000 000 0 MHz FREQUENCY LEVEL A...

Страница 392: ...uist filtering IEC IEEE bus SOUR DECT FILT PAR 0 51 TRIGGER MODE Opens a window for selecting the trigger mode AUTO The DECT signals are continuously transmitted in the activated slots IEC IEEE bus command SOUR DECT SEQ AUTO RETRIG The DECT signals are continuously transmitted in the activated slots A trigger event causes a restart This mode is not available if values different from zero are set f...

Страница 393: ...M DECT STATE MODULATION TRIGGER MODE EXECUTE TRIG TRIGGER CLOCK POWER RAMP C SLOT ATTENUA TRIGGER SOURCE INT EXT EXT TRIGGER DELAY 0 Symb EXT RETRIGGER INHIBIT 0 Symb TRIGGER OUT2 DELAY 0 Symb TRIGGER OUT2 PERIOD 1 Frame LEVEL 30 0 dBm PEP 30 0 dBm FULL 0 1 Fig 2 207 Menu DIGITAL STD DECT_TRIGGER SMIQ equipped with Modulation Coder SMIQB20 and Data Generator SMIQB11 TRIGGER TRIGGER SOURCE Selectio...

Страница 394: ...event With TRIGGER MODE RETRIG selected each new trigger signal restarts the DECT signal generation This restart can be inhibited for the entered number of symbols Example The entry of 1000 symbols causes new trigger signals to be ignored for the duration of 1000 sym bols after a trigger event IEC IEEE bus SOUR DECT TRIG INH 1000 TRIGGER OUT2 DELAY Input value of delay of trigger signal at TRIGOUT...

Страница 395: ...LOCK CLOCK SOURCE Selection of clock source INT SMIQ uses internally generated clock signals EXT An external symbol clock or bit clock is fed in at connectors SYMBOL CLOCK or BIT CLOCK The clock synthesizer on the modulation coder is synchronized to this clock The symbol rate has to be set with an accuracy of 1 The polarity the trigger threshold and the input resistance of the clock inputs can be ...

Страница 396: ... set default values IEC IEEE bus SOUR DECT PRAM PRES RAMP TIME Input value for the rise and fall time of the envelope at the beginning or end of a slot The time is set in units of the symbol period IEC IEEE bus SOUR DECT PRAM TIME 1 5 RAMP FUNCTION Selection of shape of rising and falling ramp for envelope control LIN Linear ramp function COS Cosine function A more favorable spectrum than that of ...

Страница 397: ... in time whereas ordinary timing is generated for odd numbered frames IEC IEEE bus command SOUR DECT SIM JITT 1 PREAMBLE Selection of the preamble type for full and double slot NORMAL The preamble field has a length of 16 bits PROLONGED The preamble field has a length of 32 bits IEC IEEE bus command SOUR DECT PRE NORM SAVE RCL FRAME Opens a window for saving and loading a frame configuration Loadi...

Страница 398: ...e active as full slots FULL_0 Only slot no 0 is active as a full slot DOUB_0 Slots no 0 and 1 are active as double slots IEEE SOUR DECT FLIS PRED LOAD name RECALL FRAME Loads a frame configuration saved by the user IEC IEEE bus SOUR DECT FLIS LOAD name SAVE FRAME Saves a user defined frame configuration IEC IEEE bus SOUR DECT FLIS STOR name DELETE FRAME Deletes a frame configuration saved by the u...

Страница 399: ...GUARD 0 12 16 16 64 320 4 4 44 SLOT TYPE FULL SLOT LEVEL OFF ATTEN FULL SET DEFAULT SLOT TIMING SHIFT 0 Bit CW DURING RAMP UP OFF ON SLOT CONTENTS RAMP 101010101010 Bin NORMAL PREAMBLE 1010101010101010 Bin SYNC 1110100110001010 Bin A FIELD DATA PN9 B FIELD DATA PN9 X B FIELD CRC Z OFF ON GUARD ALL ZERO CHANGE DATA SELECT DATA LIST CURRENT R STDM COPY CURRENT DATA LIST TO DELETE DATA LIST EDIT DATA...

Страница 400: ...value advances the slot in time IEEE bus command SOUR DECT SLOT2 STSH 1 CW DURING RAMP UP Switches the modulation during the rise of the power ramp on or off ON Before the preamble starts the modulation is switched off so that only the unmodulated carrier is generated OFF Before the preamble starts the modulation is switched on and the data bits in the ramp field are modulated IEEE bus command SOU...

Страница 401: ...IELD The 64 bit A data field is only displayed for the slot types FULL and DOUBLE PN PRBS data according to CCITT V52 or Rec 0 151 with period lengths between 2 9 1 and 2 23 1 IEEE bus SOUR DECT SLOT3 AFI PN15 DLIST Data from a programmable list IEEE bus SOUR DECT SLOT3 AFI DLIS name SOUR DECT SLOT3 AFI DLIS SERDATA Data fed in via the entry SER DATA IEEE bus SOUR DECT SLOT3 AFI SDAT B FIELD DATA ...

Страница 402: ...slot types FULL and DOUBLE ON The CRC Cyclic Redundancy Code generated for the X field is repeated in the 4 bit data field Z OFF The Z field is not activated The guard field is extended by 4 bits IEEE bus command SOUR DECT SLOT2 ZFI ON GUARD This data field can not be edited and contains zero data At the beginning of the GUARD field the power ramp of the active slot starts falling SELECT DATA LIST...

Страница 403: ...ests to be carried out can be generated by SMIQ for one satellite Table 2 33 GPS system parameters Carrier frequency 1 57542 GHz Signal level after antenna Approx 125 dBm to 1 and 2 depending on receive conditions Doppler shift 10 kHz to 10 kHz settable Symbol rate C A code 1 023 Msps C A codes 1 to 37 settable 1023 chips per C A code Modulation BPSK Information data rate navigation data 50 Hz Fra...

Страница 404: ...ff STATE ON starts the calculation and output of the GPS signal on the basis of the current settings There are no significant delays until the signal is output since the signal is generated in realtime IEC IEEE bus command SOUR GPS STAT ON Note When a parameter is changed exception DOPPLER SHIFT and SYMBOL RATE STATE is automatically switched to OFF to ensure that the set values and the output sig...

Страница 405: ...OUR GPS SEQ AAUT ARMED_RETRIG Only a trigger event causes a start of the GPS signal from the first navigation data bit Any other trigger event causes a restart IEC IEEE bus command SOUR GPS SEQ ARET EXECUTE TRIGGER Executes a trigger event to start the GPS signal IEC IEEE bus command TRIG DM IMM TRIGGER Opens a window for selecting the trigger source configuring trigger output signals and setting ...

Страница 406: ...r signal for every C A code sequence 1023 chips IEC IEEE bus command SOUR GPS TRIG OUTP1 CODE NAVBIT Marker signal for every navigation data bit 20460 chips IEC IEEE bus command SOUR GPS TRIG OUTP1 NBIT NAVWORD Marker signal for every navigation data word 30 bits IEC IEEE bus command SOUR GPS TRIG OUTP1 NWOR SUBFRAME Marker signal for every navigation subframe corresponds to 10 words IEC IEEE bus ...

Страница 407: ...from the set frequency the Doppler shift and the set basic symbol rate for zero Doppler according to the following equation ø ö ç ç è æ FREQ f f f Doppler Symbol Symbol r ZeroDopple resulting 1 IEC IEEE bus command SOUR GPS CURR SRAT RESULTING FREQUENCY Displays the physical carrier frequency currently output The value is obtained from the sum of the set frequency under FREQ and Doppler shift acco...

Страница 408: ...erforming simple function tests It should be noted however that the receiver to be tested may have to be switched to a special test mode since signals without correct navigation data are often not indicated on a display for example 2 GPS signals with pseudo navigation data Switching NAVIGATION DATA SOURCE over to DATA_LIST enables any data lists to be selected on SMIQ and used as navigation data R...

Страница 409: ...lt in signals that do not conform to GPS The basic carrier frequency without Doppler shift can be freely set under FREQ The actual frequency output physically is yielded by the following equation Doppler f FREQ f and is displayed under RESULTING FREQUENCY The symbol rate used for zero Doppler is set under SYMBOL RATE Taking into account a Doppler shift the actual symbol rate is determined by the f...

Страница 410: ... such as Matlab may be transferred 2 21 1 Function Conventional ARB generators substantially consist of an output memory with series connected D A converter and analog filter Due to the limited number of filters and their steepness the sampling rate often has to be set considerably higher than required by Nyquist s theorem in order for the aliasing effects to be sufficiently suppressed by the anal...

Страница 411: ...following value is thus obtained for the digital standard W CDMA with the baseband filter cos α 0 22 mod_bw 2 α 1 0 61 ov 0 375 0 61 1 63 2 Due to the reduced oversampling the duration of the signal increases with constant number of sampling values Accordingly the number of sampling values decreases with constant signal duration Usually with conventional ARB generators the minimum oversampling is ...

Страница 412: ... interpolation filter increases the sampling rate by the factor 4 This corresponds to a correct reconstruction of the additional sampling values in the time domain Due to the sample and hold process at the output of the subsequent D A converter a stair step signal is generated in the time domain which corresponds to a SI weighting in the frequency domain The analog filter compensates for the alias...

Страница 413: ...supports the generation of predefined trigger signals see Use of WinIQSIM Software Fig 2 217 Trigger signals SMIQB60 2 21 1 1 Use of WinIQSIM The SMIQB60 is supported by WinIQSIM starting with version 3 30 Waveforms can be loaded via the IEC IEEE bus into the FLASH memory an individual operating menu allows for setting numerous SMIQ parameters It must be noted that settings of WinIQSIM cannot be r...

Страница 414: ...utput of ARB waveform stops IEC IEEE bus command ARB STAT OFF TRIGGER MODE Configuration of run control of ARB mode AUTO The calculated waveform sequence is output imme diately and repeated in cycles Trigger events are ignored IEC IEEE bus command ARB SEQ AUTO RETRIG Cyclic repetition of output A trigger event initiates a restart IEC IEEE bus command ARB SEQ RETR ARMED_AUTO Only a trigger event in...

Страница 415: ... setting of SMIQ parameters CLOCK FREQUENCY Input value for the sample clock If the clock is supplied by an external source the applied frequency must be entered here IEC IEEE bus command ARB CLOC 4 096MHz CLOCK Opens a window for selection of the clock source and delay of the clock signal IQ OUTPUT Opens a window for entry of the IQ level and mode CCDF Ø Ø Ø Ø Display of the Complementary Cumulat...

Страница 416: ...y the indicated samples after occurrence of an external trigger event The resolution is 2 samples with clock rates CLOCK above 20 MHz otherwise 1 sample IEC IEEE bus command ARB TRIG DEL 234 EXT RETRIGGER INHIBIT Retriggering is inhibited until the sequence has reached the indicated sample IEC IEEE bus command ARB TRIG INH 345 TRIGGER OUT1 2 POL Signal polarity at the trigger outputs POS active st...

Страница 417: ...ways available for all systems BIT_CLK edge at beginning of each bit SYMB_CLK edge at beginning of each modulation symbol SLOT_CLK edge at beginning of each slot FRAM_CLK edge at beginning of each frame SEQUENZ edge at beginning of each sequence may e g be used as restart signal for BERT PULSE pulse defined by WinIQSIM user USER The user defines a pulse by means of the parameters for ON and OFF TI...

Страница 418: ...ecomes the active waveform Further information on this waveform is then provided IEC IEEE bus command ARB WAV SEL TEST Fig 2 221 ARB MOD WAVEFORM INFO menu SELECT WAVEFORM Waveform Info These lines are for display purposes only they cannot be modified They are filled with values from the active waveform when opening the menu After being confirmed by the user they are updated via SELECT Setting par...

Страница 419: ... of the IQ filter is executed automatically by the SMIQ The value of the waveform is used in the VECTOR MOD menu for the IQ filter if this is enabled in the SET SMIQ ACCORDING TO WAVEFORM menu IEC IEEE bus command ARB WAV TAG LACP FILTER IQ SWAP Indicates the setting used with the waveform calculation in WinIQSIM The value is used in the VECTOR MOD menu for the IQ SWAP setting after enabling in th...

Страница 420: ... IEC IEEE bus command ARB WAV TAG IF_SIGNAL SYSTEM Indicates the standard used to calculate the waveform in WinIQSIM The following standards have been defined Single Carrier Multi Carrier Multi Carrier Mixed Signal 3GPP W CDMA IS 95 CDMA2000 and Import IEC IEEE bus command ARB WAV TAG SYSTEM CREATION DATE Displays the creation date of the waveform Provides the user with information and is added au...

Страница 421: ...ARB WAV DEL TEST 2 21 2 4 ARB MOD SET SMIQ ACCORDING TO WAVEFORM Menu Fig 2 223 ARB MOD SET SMIQ ACCORDING TO WAVEFORM menu SET SMIQ ACCORDING TO WAVEFORM Opens a window for configuration of the automatic setting of SMIQ parameters SET SMIQ ACCORDING TO WAVEFORM ON In any case settings on the SMIQ are made based on the information from the waveform to be loaded IEC IEEE bus command ARB ASET STAT O...

Страница 422: ...it should be switched on A warning is output if the parameter is not set as indicated in the waveform ON Parameter is set IEC IEEE bus command ARB ASET DM IQSW ON OFF Parameter is not set IEC IEEE bus command ARB ASET DM IQSW OFF PRBS BERT The type of PRBS in the BERT menu is set If a waveform has been generated in WinIQSIM with this PRBS the latter should be selected with BER measurement A warnin...

Страница 423: ...ines the source for the sample clock INT Clock is generated internally IEC IEEE bus command ARB CLOC SOUR INT EXT Clock must be applied at the socket IEC IEEE bus command ARB CLOC SOUR EXT DELAY Delay of the modulation signal against the clock signal This may be used e g for synchronization with a second instrument to obtain time synchronous modulation signals of both instruments IEC IEEE bus comm...

Страница 424: ...he subsequent level entry is not effective IEC IEEE bus command ARB IQ LEV MODE AUTO MAN The level is set using the level entry below The instrument data can not be guaranteed for entry values above 0 dB since the output level is limited However the signal to noise ratio e g may thus be increased IEC IEEE bus command ARB IQ LEV MODE MAN MAN LEVEL Indicates the IQ level referred to maximum voltage ...

Страница 425: ...ed by AMIQ onto the RF carrier ï ð SMIQ I Q RF IEC 625 IEEE 488 M ADE IN G ERM AN Y CONTROL ON I Q MODULATION GENERATOR AMIQ 1110 2003 02 RUNNING I Q AMIQ Fig 2 226 Vector modulation with an external AMIQ Menu VECTOR MOD provides access to settings required for vector modulation Settings for generating the modulation signals are made in menu AMIQ CTRL This menu allows to set the most important par...

Страница 426: ...o AMIQ by means of the following commands SELECT WAVEFORM EXECUTE BATCH DRIVE FLOPPY A faster access is possible if signal data are stored as batch files on a floppy The floppy is then inserted into AMIQ and the batch file is called up from SMIQ by means of the following commands SELECT WAVEFORM EXECUTE BATCH EXECUTE BATCH FROM FLOPPY The signal data are stored as waveform file on the AMIQ hard di...

Страница 427: ... IQDATA OFF AUTO SINGLE GATED EXT AUTO EXT SINGLE POS HIGH NEG LOW OFF 2 5MHz 25MHz EXT INT EXT 10 MHz SETUP SAVE RECALL SETTINGS SELECT WAVEFORM EXECUTE BATCH MODE EXECUTE SINGLE EXT TRIG SLOPE FILTER LEVEL MARKER REFERENCE OSCILLATOR CLOCK BIT ERROR MEASUREMENT Fig 2 227 Menu AMIQ CTRL presetting depends on AMIQ SETUP Opens a window to set the basic configuration of AMIQ The window offers functi...

Страница 428: ...LT Resets the user correction to the default values This applies to the following parameters LEVEL I GAIN OFFSET I FIX OFFSET I VAR LEVEL Q GAIN OFFSET Q FIX OFFSET Q VAR SKEW I Q These parameters will only be effective provided that a fixed level of 0 5 V 50 Ohm has been assigned to the corresponding channel For variable levels the settings of these para meters are ineffective A correction of the...

Страница 429: ...modified by entering the relative factors 1 0 in a range of approx 1 ns at a resolution of 10 ps SELF TEST Triggers the internal AMIQ selftest which comprises the following memory test of the output memory control of components of analog hardware and check of signal paths by means of the built in diagnostic A D converter SAVE RECALL SETTINGS Opens a window to save load delete a maximum number of 1...

Страница 430: ...MIQ hard disk display current signal data SETUP SAVE RECALL SELECT WAVE MODE EXECUTE SIN EXT TRIG SL FILTER LEVEL MARKER REFERENCE O FREQ 100 000 000 0 MHz LEVEL 30 0 dBm FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD AMIQ CTRL LF OUTPUT SWEEP LIST MEM SEQ FLOPPY HARDDISK NONE DRIVE WAVEFORM EXECUTE BATCH FROM FLOPPY File Info CREATION DATE NONE COMMENT NONE MODULATED POWER OFFSET N...

Страница 431: ... trigger conditions for signal output Any change in the trigger conditions resets the signal output and starts it again Retriggering a running signal output is inhibited OFF Stops the signal output output of the idle signal AUTO Continuous signal output trigger events are ignored SINGLE Prepares a single signal output The idle signal is output first Signal output is started via menu item EXECUTE S...

Страница 432: ...and Q channel For a detailed specification of the filter see AMIQ manual section Signal Inputs and Outputs Note With external filtering it has to be made sure that a filter is connected to both filter inputs I and Q on the rear of AMIQ The two signal outputs can be switched off completely during external filtering provided that no filter is connected to the corresponding filter input LEVEL Opens a...

Страница 433: ...t impedance is indicated for both channels If the command LEVEL I Q OFF is activated when the AMIQ outputs are switched on this is equivalent to presetting which will only have an effect when the AMIQ outputs are turned off 509 Corresponds to the setting LEVEL I Q VAR 0 V HIGH The output connectors are isolated with a relay and become high impedance DIGITAL OUTPUT Switching the digital outputs on ...

Страница 434: ...OD DIGITAL MOD DIGITAL STD AMIQ CTRL LF OUTPUT SWEEP LIST MEM SEQ OFF ON 0 OFF ON 0 OFF ON 0 OFF ON 0 MARKER CHANNEL 1 SHIFT SAMPLES MARKER CHANNEL 2 SHIFT SAMPLES MARKER CHANNEL 3 SHIFT SAMPLES MARKER CHANNEL 4 SHIFT SAMPLES Fig 2 232 Menu AMIQ CTRL MARKER MARKER MARKER CHANNEL 1 2 3 4 Configuration of marker output 1 2 3 4 OFF No marker output ON Marker output SHIFT Marker output displaced by SH...

Страница 435: ...30 0 dBm FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD AMIQ CTRL LF OUTPUT SWEEP LIST MEM SEQ BIT ERROR RATE BER 2 3 DATA BITS 10000000 ERRORS 23 TERMINATED BY NUMBER OF DATA BITS _______________________________________________________ MODE OFF AUTO SINGLE EXECUTE SINGLE TERMINATION ATTRIBUTES DATA BITS 10000000 ERRORS 100 PRBS 9 11 15 20 23 Bit DATA POLARITY NORM INV CLOCK SLOPE P...

Страница 436: ...erformed If one of the termination criteria is met TERMINATION ATTRIBUTES DATA BITS and TERMINATION ATTRIBUTES ERRORS the measurement is terminated A SINGLE measurement can only be initiated by selecting the EXECUTE SINGLE menu EXECUTE SINGLE Initiating a single BER measurement This menu item is only shown if MODE SINGLE has been set TERMINATION ATTRIBUTES DATA BITS Setting the termination criteri...

Страница 437: ...asurement can be induced by various criteria With option SMIQB21 measurements can be stopped either manually or because of one of the following two criteria a user defined number of data bits has been transmitted or a maximum number of errors has been detected By means of the RESTART function eg for IQ signals that are not generated continuously and therefore do not contain integer multiples of PR...

Страница 438: ...h they have been established and additional information on the applied signal In the lower section settings can be made BIT ERROR RATE BER Cyclic display of the measured bit error rate the ratio of detected errors to transmitted data bits DATA BITS Number of transmitted data bits ERRORS Number of detected errors TERMINATED BY The displayed measurement result was obtained as follows NUMBER OF DATA ...

Страница 439: ...AUTO Continuous measurement of bit error rate If one or both criteria for termination are fulfilled a new measurement is initiated automatically Depending on the settings made a measurement may take considerable time During the first measurement intermediate results are displayed For the measurements that follow only the final results are shown The parameters DATA BITS and ERRORS are continuously ...

Страница 440: ...always independently of PATTERN IGNORE or DATA ENABLE DISABLED Deactivated ENABLED Activated IEC IEEE bus command BERT SET REST INT DATA ENABLE Setting the polarity of the DUT s DATA ENABLE signal Note If the data are not enabled the execution of the BER measurement is stopped completely The identification circuit for PATTERN IGNORE as well as the PRBS generator of the BER measurement wait as long...

Страница 441: ...the 0 or 1 sequence the BER measurement is continued as if the ignored sequence had contained PRBS data If PATTERN IGNORE is switched on synchronization time is 32 bits longer If PATTERN IGNORE and RESTART are active at the same time the presence of the restart signal causes the measurement to stop immediately None of the 32 bits within the PATTERN IGNORE detector is evaluated If DATA ENABLE and P...

Страница 442: ... BER measurement the data generation polynomial must be known Data are calculated with the aid of so called pseudo random binary sequences PRBS These are quasi random bit sequences which are repeated according to the selected polynomial An advantage of the PRBS data is that the bit error detector has only to know the polynomial but not the total sequence Furthermore the analysis can be started any...

Страница 443: ... BER will be about 50 In this case the measurement is started again automatically without the user realizing BER measurement with uninterrupted repetition of the random sequence The non integrating BER measurement operates on the basis of random sequences that are run continuously These sequences are either generated continuously or by cyclic output of a stored sequence with the number of encoded ...

Страница 444: ...urement for the next sub interval This measurement is synchronized anew This input is best connected to an AMIQ marker channel or the SMIQ trigger output with a single 1 encoded both at the start and at the end of the data sequence This causes the BER measurement to stop briefly at memory wrap around the break and start again The partial results are integrated When the signals are interrupted by o...

Страница 445: ...er of errors occurs in the observed interval Only this ensures that the single BER measurement result approaches the true error rate with high probability Termination criteria To keep the measurement time short with low and high bit error rates two termination criteria have been defined in the SMIQ for the BER measurement Criterion 1 Total number of bits The measurement is terminated when the spec...

Страница 446: ...l is therefore not required BER measurement does not synchronize A bit error occurs during synchronization nine data bits with PRBS9 The BER measurement is started at a wrong position so that about 50 of the subsequent data bits are identified as faulty No clock received from DUT When testing RF components clock recovery is not available An external clock is however required for clocking the data ...

Страница 447: ...made BLOCK ERROR RATE BLER Cyclic display of measured block error rate the ratio of detected errors to transmitted data blocks IEC IEEE bus BLER RES Return value 3 of 7 RECEIVED BLOCKS Number of transmitted data blocks IEC IEEE bus BLER RES Return value 1 of 7 ERRORS Number of detected errors IEC IEEE bus BLER RES Return value 2 of 7 TERMINATED BY The displayed measurement result was obtained as f...

Страница 448: ...ne or both termination criteria are fulfilled a new measurement is started automatically Depending on the settings made a measurement may take considerable time During the first measurement intermediate results are displayed For all subsequent measurements only the final results are displayed The parameters RECEIVED BLOCKS and ERRORS are continuously updated and indicate the relative values for th...

Страница 449: ...isplay of relative frequency in percent ppm Display of relative frequency in parts per million IEC IEEE bus command BLER UNIT ENG 2 23 2 2 CRC Polynomial CCITT CRC 16 G x x 16 x 12 x 5 x 1 is the only CRC polynomial currently supported At the beginning of information data marked by the edge of the DATA ENABLE signal the shift register is initialized with 0 All information bits are then shifted thr...

Страница 450: ... is reliably terminated after the specified number of blocks even if no error or only a few errors were detected the measurement result may not be statistically reliable if few block errors occur Criterion 2 Number of errors The measurement is terminated when the specified number of block errors has occurred With this criterion the measurement is rapidly terminated when the block error rate is hig...

Страница 451: ...asurement e g if lines are not terminated The SMIQ input is not terminated Incorrect polarity of data signal or DATA ENABLE signal In this case the CRC tester cannot synchronize No clock received from DUT When testing RF components clock recovery may not be available An external clock is however required for clocking the data during the BLER measurement The bit clock at the PAR DATA connector of t...

Страница 452: ...he noise signal is added to the signal Distortion is performed via AM AM conversion and AM PM conversion The respective characteristics can be loaded or modified via IEC IEEE bus I Q Distortion AM AM conversion AM PM conversion Noise generator Noise generator I Q in out in I Q out Fig 2 237 Block diagram of noise generator and distortion simulator The noise generator and distortion simulator are i...

Страница 453: ...N RECALCULATE Fig 2 239 Menu NOISE DIST presetting NOISE Switch on off of noise source The noise source is an AWGN Additive White Gaussian Noise signal IEC IEEE bus commands SOUR NOIS ON CARRIER NOISE RATIO Input value of the carrier to noise ratio Setting range is 5 0 to 30 dB When changing the CARRIER NOISE RATIO the noise power is changed as well but the carrier power remains unchanged The carr...

Страница 454: ...TD NOISE DIST LF OUTPUT SWEEP LIST MEM SEQ UTILITIES COEFFICIENTS AM AM COEFFICIENTS AM PM INVERSE FUNCTION LEVEL CORRECTION NOISE CARRIER NOI SYSTEM BANDW DISTORTION CHARACTERIST SELECT LIST POLYNOMIAL LEVEL CORRECTI RECALCULATE CALIBRATE CARR k2 0 0dB k3 0 0dB k4 0 0dB k5 0 0dB k2 0 0deg k3 0 0deg k4 0 0deg k5 0 0deg OFF ON 0 0deg Fig 2 240 Menu NOISE DIST POLYNOMIAL POLYNOMIAL COEFFICIENT AM AM...

Страница 455: ...of the polynomial and calling up RECALCULATE It can be edited only here Value range 20 dB to 6 dB IEEE bus SOUR DIST POLY LEV CORR 10 DB LEVEL CORRECTION Display of level correction to correct the output level so that the attenuation or gain of the distortion simulator can be compensated For the polynomial the level correction can be entered into submenu POLYNOMIAL The level correction for the lis...

Страница 456: ...c is formed by the interpolation points of AM AM and AM PM conversion Entry is possible via IEC IEEE bus The SMIQ determines the complete characteristic based on these interpolation points by cubic spline interpolation The factory set characteristics TWTA of AM AM and AM PM conversion are shown in the following figures The continuous line indicates the interpolated characteristic The circles show ...

Страница 457: ...ted under LEVEL CORRECTION As the attenuation gain of the distortion characteristic is dependent on the type of input signal being dealt with the level correction applies only to one particular type of digital modulation modulation type filter type and filter parameters and fading setting For the characteristic TWTA for instance which is supplied as standard 3 12 dB is stored as level correction T...

Страница 458: ... 2 5 2 1 5 1 0 5 0 3 Enter the data field for output values y axis of AM AM conversion in dB IEC IEEE bus command SOUR DIST DATA AM 12 9 10 9 9 7 1 5 4 3 9 3 2 2 6 2 2 1 7 1 4 1 2 1 0 8 0 7 0 5 0 3 0 2 0 1 0 0 0 1 0 1 0 2 0 4 0 5 0 7 0 8 4 Enter the data field for input values x axis of AM PM conversion in dB IEC IEEE bus command SOUR DIST DATA PMB 23 5 18 5 15 5 12 5 9 5 6 5 3 5 0 5 Enter the dat...

Страница 459: ...ified under section 2 24 1 An IEC IEEE bus transfer is not required in this case It is possible to compensate the distortion of an amplifier connected after the SMIQ using the INVERSE FUNCTION The characteristic entered via polynomial coefficients should be identical to the distortion characteristic of the amplifier The level correction described in section 2 24 3 can be directly entered in the PO...

Страница 460: ...P LF GEN Menu selection LF OUTPUT STATE OFF ON VOLTAGE 1 000 V LFGEN FREQ 1 000 0 kHz FREQ 100 000 000 0 MHz LEVEL 30 0 dBm FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES Fig 2 243 Menu LF OUTPUT preset setting STATE Switching on off the LF output Parameter STATE has no influence on the modulation settings IEC IEEE bus command OUTP2 ON VOLTAGE ...

Страница 461: ...Switch on sweep MODE set to AUTO SINGLE or STEP 2 26 1 Setting the Sweep Range START STOP CENTER and SPAN The sweep range of the RF sweep can be entered in two different ways Either by entering the START and STOP value or by entering CENTER and SPAN Please observe that the two parameter sets influence one another The influence is exerted in the following way START frequency altered STOP unaltered ...

Страница 462: ...o the stop point If SINGLE is selected the run is not started yet Function EXECUTE SINGLE SWEEP to be executed which can be used to start the run is displayed below the MODE line IEC IEEE bus commands RF sweep LF sweep Level sweep SOUR FREQ MODE SWE SOUR2 FREQ MODE SWE SOUR POW MODE SWE SOUR SWE MODE AUTO SOUR2 SWE MODE AUTO SOUR SWE POW MODE AUTO TRIG SOUR SING TRIG2 SOUR SING TRIG SOUR SING STEP...

Страница 463: ...er Input An external signal at the rear input triggers the sweep in the EXT SINGLE and EXT STEP operating modes The polarity of the active trigger edge can be set in menu UTILITIES AUX I O EXT TRIG SLOPE 2 26 5 Sweep Outputs Outputs X AXIS BLANK and MARKER are available at the rear of the instrument to control and trigger oscilloscopes or XY recorders X_AXIS With sweep switched on this output supp...

Страница 464: ... certain positions in the sweep run The polarity of the signal can be set in menu UTILITIES AUX I O MARKER POLARITY The period of the active signal is equal to the dwell time DWELL of a step Signal examples 10 V 0 V X AXIS BLANK 5 V 0 V 0 V 5 V MARKER Fig 2 244 Signal example sweep MODE AUTO BLANK TIME NORMAL 10 V 0 V X AXIS BLANK 5 V 0 V 200 ms 300 ms SINGLE new start Fig 2 245 Signal example swe...

Страница 465: ...uency IEC IEEE bus command SOUR FREQ STAR 100MHz STOP FREQ Input value of the stop frequency IEC IEEE bus command SOUR FREQ STOP 500MHz CENTER FREQ Input value of the center frequency IEC IEEE bus command SOUR FREQ CENT 300MHz SPAN Input value of the span IEC IEEE bus command SOUR FREQ SPAN 100MHz CURRENT FREQ Indication of the current frequency value Operating mode STEP Input value of the frequen...

Страница 466: ...uted is only indicated and is only effective if MODE SINGLE has been selected IEC IEEE bus command TRIG RESET SWEEP Sets the starting frequency IEC IEEE bus command ABOR MARKER 1 FREQ MARKER 2 FREQ MARKER 3 FREQ MARKER 4 FREQ Input value of the frequency for the marker selected IEC IEEE bus command SOUR MARK1 FREQ 100MHz MARKER 1 STATE MARKER 2 STATE MARKER 3 STATE MARKER 4 STATE Switching on off ...

Страница 467: ... LEVEL Indication of the current level Operating mode STEP Input value of the level STEP Input value of the step width IEC IEEE bus command SOUR SWE POW STEP 1dB DWELL Input value of the dwell time per step IEC IEEE bus command SOUR SWE POW DWEL 15ms MODE Selection of the sweep operating mode IEC IEEE bus commands SOUR POW MODE SWE SOUR SWE POW MODE AUTO TRIG SOUR SING EXECUTE SINGLE SWEEP Starts ...

Страница 468: ...nput value of the level for the marker selected IEC IEEE bus command SOUR MARK1 PSW POW 0dBm MARKER 1 STATE MARKER 2 STATE MARKER 3 STATE MARKER 4 STATE Switching on off the marker selected IEC IEEE bus command SOUR MARK1 PSW OFF 2 26 8 LF Sweep Menu SWEEP LF GEN offers access to settings for LF sweep Menu selection SWEEP LF GEN Fig 2 248 Menu SWEEP LF GEN ...

Страница 469: ...sweep run linear or logarithmic IEC IEEE bus command SOUR2 SWE SPAC LIN MODE Selection of the sweep operating mode IEC IEEE bus command SOUR2 FREQ MODE SWE SOUR2 SWE MODE AUTO TRIG2 SOUR SING EXECUTE SINGLE SWEEP Starts a single sweep run This action to be executed is only indicated and is only effective if MODE SINGLE is selected IEC IEEE bus command TRIG RESET SWEEP Sets the starting frequency I...

Страница 470: ... 5 dBm Up to 10 lists can be created The total amount of possible pairs of values including all lists may maximally be 2000 I e a list may have 2000 entries at the most or less if several lists have been created Each list is identified by a separate name and selected via this name A detailed description how to process the lists can be found in Section 2 2 11 List Editor 2 27 1 Operating Modes MODE...

Страница 471: ...lation Data and Control Signals from Lists and Section Menu DIGITAL STANDARD GSM Each trigger event triggers a single step IEC IEEE bus commands SOUR FREQ MODE LIST SOUR LIST MODE STEP TRIG LIST SOUR HOP OFF Operating mode LIST is switched off IEC IEEE bus command SOUR FREQ MODE CW Note The minimum step time of 1 ms must not be violated in modes EXT STEP and HOP either With fading switched on the ...

Страница 472: ... or EXT STEP is 1 5 to 2 ms and has a jitter of 0 5 ms TRIGGER Input BLANK Output MARKER Output Frequency Fig 2 249 Signal example LIST mode MODE EXT STEP The LIST menu offers access to settings for the LIST mode Menu selection LIST LEVEL MODE OFF AUTO SINGLE STEP EXT SINGLE EXT STEP RESET LIST DWELL 10 0 ms CURRENT INDEX 1 LEARN SELECT LIST CURRENT LIST2 DELETE LIST FUNCTION FILL INSERT DELETE ED...

Страница 473: ...ist are subsequently set by the instrument with the current additional parameters and the hardware setting data are stored Caution This function must be called after every creating and altering the list or the remaining setting data The list must be learned as well after temperature changes or after calling internal calibration routines as all parameters usually controlled are replaced by stored v...

Страница 474: ...EN 2055 FREQ LEVEL 0001 575 000 000 0 MHz 13 0 dBm 0002 235 000 000 0 MHz 7 0 dBm 0003 123 000 000 0 MHz 1 0 dBm 0004 456 000 000 0 MHz 1 0 dBm 0005 735 000 000 0 MHz 3 0 dBm 0006 333 000 000 0 MHz 4 0 dBm 0007 400 000 000 0 MHz 7 0 dBm 0008 235 000 000 0 MHz 7 0 dBm FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES Fig 2 251 Menu List EDIT page I...

Страница 475: ...for list index memory location number Memory and dwell time Dwell The beginning of the list has index 1 Table 2 35 MEMORY SEQUENCE Example of a list Index Memory Dwell 001 09 50 0 ms 002 02 50 0 ms 003 01 75 0 ms 004 10 75 0 ms Up to 10 sequence lists can be created The total number of possible list elements is maximally 256 I e a list can have 256 entries at the most or less if several lists have...

Страница 476: ...ENT INDEX The list can now be passed through upwards or downwards step by step using the rotary knob IEC IEEE bus command SYST MODE MSEQ SYST MSEQ MODE STEP TRIG MSEQ SOUR SING EXT SINGLE Single run from the beginning to the end of the list as with SINGLE but triggered by an external trigger signal IEC IEEE bus command SYST MODE MSEQ SYST MSEQ MODE AUTO TRIG MSEQ SOUR EXT EXT STEP Step by step run...

Страница 477: ...UTE SINGLE SEQUENCE Starts the single run of a memory sequence This menu option is only visible if MODE SINGLE is selected IEC IEEE bus command TRIG MSEQ RESET SEQUENCE Wrap to the beginning of the list IEC IEEE bus command ABOR MSEQ CURRENT INDEX Indication of the current list index Setting value of the current list index in the MODE STEP operating mode SELECT LIST Selection of a list or generati...

Страница 478: ...EW SELECT LIST FUNCTION INDEX FREE 2041 LEN 2055 MEMORY DWELL 001 09 50 ms 002 02 50 ms 003 01 60 ms 004 23 60 ms 005 09 85 ms 006 10 85 ms 007 08 85 ms 008 11 85 ms FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES Fig 2 253 Menu MEM SEQ EDIT page INDEX Index of the list FREE Indication of the list entries still vacant LEN Length of the current l...

Страница 479: ...f delivery address 28 is set Menu selection UTILITIES SYSTEM GPIB SYSTEM REF OSC PHASE PROTECT CALIB DIAG TEST MOD KEY AUX I O BEEPER INSTALL ADDRESS AMIQ ADDRESS FREQ 100 000 000 0 MHz LEVEL 30 0 dBm GPIB RS232 SERDATA SECURITY LANGUAGE 28 6 FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES Fig 2 254 Menu UTILITIES SYSTEM GPIB ADDRESS Input value...

Страница 480: ...IES SYSTEM RS232 DATA FORMAT Indication of the number of data bits This value cannot be changed PARITY Indication of parity This value cannot be changed STOP BIT Indication of the number of stop bits This value cannot be changed BAUD RATE Selection of the baud rate IEC IEEE bus command SYST COMM SER BAUD 9600 HANDSHAKE Selection of the handshake OFF No handshake IEC IEEE bus command SYST COMM SER ...

Страница 481: ...M SERDATA SYSTEM REF OSC PHASE PROTECT CALIB DIAG TEST MOD KEY AUX I O BEEPER INSTALL BAUD RATE 9600 bps FREQ 100 000 000 0 MHz LEVEL 30 0 dBm GPIB RS232 SERDATA SECURITY LANGUAGE FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES Fig 2 256 Menu UTILITIES SYSTEM SERDATA BAUD RATE Selection of the baud rate IEC IEEE bus command SYST COMM SDAT BAUD 9...

Страница 482: ...e SECURITY state ON Locks the suppression of the indications Can only be set via IEC bus OFF Deactivates the interlock of the indication suppression The preset state is set in the transition ON OFF and all data stored such as settings with the exception of the DM lists are deleted Can only be set via IEC bus IEC IEEE bus command SYST SEC OFF ANNOTATION FREQ OFF All frequency indications are suppre...

Страница 483: ...y possible if the ADJUSTMENT STATE selection has been switched to ON in the UTILITIES REF OSC menu In the external reference operating mode an external signal at a frequency of 1 MHz to 16 MHz spacing 1 MHz is to be fed into socket REF The setting to external frequency is effected in the UTILITIES REF OSC menu Signal level Veff 0 1 to 2 V The message EXT REF is displayed in the status line in the ...

Страница 484: ... range 4 10 6 IEC IEEE bus command SOUR ROSC ADJ VAL 2048 2 29 7 Phase of the Output Signal PHASE Menu UTILITIES PHASE offers access to the phase setting of the RF output signal with respect to a reference signal of the same frequency Menu selection UTILITIES PHASE SYSTEM REF OSC PHASE PROTECT CALIB DIAG TEST MOD KEY AUX I O BEEPER INSTALL DELTA PHASE RESET DELTA PHASE DISPLAY FREQ 100 000 000 0 M...

Страница 485: ...IES PROTECT offers access to the unlocking of protected functions Menu selection UTILITIES PROTECT SYSTEM REF OSC PHASE PROTECT CALIB DIAG TEST MOD KEY AUX I O BEEPER INSTALL LOCK LEVEL 1 PASSWORD LEVEL 1 LOCK LEVEL 2 PASSWORD LEVEL 2 LOCK LEVEL 3 PASSWORD LEVEL 3 FREQ 100 000 000 0 MHz LEVEL 30 0 dBm OFF ON XXXXXX OFF ON XXXXXX OFF ON XXXXXX FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGIT...

Страница 486: ...instrument has warmed up Calibration routines LEVEL and REF OSC are described in the service manual Calibration ALL CALIB ALL triggers all internal calibrations which do not require any external measuring equipment The calibrations with external measurements are described in the service manual Menu selection UTILITIES CALIB ALL SYSTEM REF OSC PHASE PROTECT CALIB DIAG TEST MOD KEY AUX I O BEEPER IN...

Страница 487: ... LEV PRESET OSC REF LEVEL ALC TABLE LEV ATT FREQ 100 000 000 0 MHz LEVEL 30 0 dBm CALIBRATE VIEW 750 0 MHz 760 0 MHz 770 0 MHz 780 0 MHz 790 0 MHz 800 0 MHz 810 0 MHz 820 0 MHz 2 2 2 2 2 2 2 2 0001 0002 0003 0004 0005 0006 0007 0008 22mV 24mV 25mV 26mV 27mV 28mV 29mV 30mV 88 108 127 147 167 187 207 217 FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILI...

Страница 488: ...ter a warm up time of approx 1 h or in the case of temperature changes of more than 5 C Menu selectiom UTILITIES CALIB VECTOR MOD SYSTEM REF OSC PHASE PROTECT CALIB DIAG TEST MOD KEY AUX I O BEEPER INSTALL ALL VCO SUM VECTOR MOD LEV PRESET OSC REF LEVEL ALC TABLE LEV ATT FREQ 100 000 000 0 MHz LEVEL 30 0 dBm CALIBRATE FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LI...

Страница 489: ...00 000 0 MHz LEVEL 30 0 dBm CALIBRATE TABLE IQMOD CW IQMOD VM IQCON VIEW 300 000 0 kHz 23 1 000 000 0 MHz 23 1 000 000 1 MHz 24 2 000 000 0 MHz 24 2 000 000 1 MHz 25 3 000 000 0 MHz 25 0001 0002 0003 0004 0005 0006 FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES Fig 2 264 Menu UTILITIES CALIB LEV PRESET CALIBRATE Triggers the calibration for lev...

Страница 490: ...is required to attain an optimum level accuracy for the given operating temperature Menu selection UTILITIES CALIB ALC TABLE SYSTEM REF OSC PHASE PROTECT CALIB DIAG TEST MOD KEY AUX I O BEEPER INSTALL ALL VCO SUM VECTOR MOD LEV PRESET OSC REF LEVEL ALC TABLE LEV ATT FREQ 100 000 000 0 MHz LEVEL 30 0 dBm LEARN TABLE FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST ...

Страница 491: ... accuracy of level reduction Menu selection UTILITIES CALIB LEV ATT SYSTEM REF OSC PHASE PROTECT CALIB DIAG TEST MOD KEY AUX I O BEEPER INSTALL ALL VCO SUM VECTOR MOD LEV PRESET OSC REF LEVEL ALC TABLE LEV ATT FREQ 100 000 000 0 MHz LEVEL 30 0 dBm CALIBRATE FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES Fig 2 266 Menu UTILITIES CALIB LEV ATT CA...

Страница 492: ... LFGEN SYSTEM REF OSC PHASE PROTECT CALIB DIAG TEST MOD KEY AUX I O BEEPER INSTALL ALL VCO SUM VECTOR MOD LEV PRESET OSC REF LEVEL ALC TABLE LEV ATT LFGEN FREQ 100 000 000 0 MHz LEVEL 30 0 dBm FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES CALIBRATE Fig 2 267 Menu UTILITIES CALIB LFGEN CALIBRATE Triggers calibration for the LFGEN function IEC I...

Страница 493: ...NFO MOD Menu selection UTILITIES DIAG CONFIG SYSTEM REF OSC PHASE PROTECT CALIB DIAG TEST MOD KEY AUX I O BEEPER INSTALL CONFIG TPOINT C NMEAS PARAM FREQ 100 000 000 0 MHz LEVEL 30 0 dBm VAR VAR VAR VAR VAR VAR VAR VAR VAR VAR REV REV REV REV REV REV REV REV REV REV FRO REFSS DSYN SUM IQCON IQMOD ROSC SM B1 FMOD SM B5 MCOD SMIQB11 DGEN SMIQB20 FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGI...

Страница 494: ... Menu selection UTILITIES DIAG TPOINT SYSTEM REF OSC PHASE PROTECT CALIB DIAG TEST MOD KEY AUX I O BEEPER INSTALL CONFIG TPOINT C NMEAS PARAM FREQ 100 000 000 0 MHz OFF ON 7 STATE POINT LEVEL 30 0 dBm TP 007 3 570V FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES Fig 2 269 Menu UTILITIES DIAG TPOINT STATE Switching on off the voltage indication i...

Страница 495: ... to these modes Menu selection UTILITIES DIAG C N MEAS SYSTEM REF OSC PHASE PROTECT CALIB DIAG TEST MOD KEY AUX I O BEEPER INSTALL CONFIG TPOINT C N MEAS PARAM FREQ 100 000 000 0 MHz LEVEL 30 0 dBm TP 007 3 570V FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD NOISE DIST LF OUTPUT SWEEP LIST MEM SEQ UTILITIES C N MEAS MODE CARRIER NOISE CARRIER NOISE Fig 2 270 Menu UTILITIES DIAG C N ...

Страница 496: ...L MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES MODEL SMIQ03B SERIAL NUMBER XXXX XXXX X SOFTWARE VERSION 1 03 SOFTWARE DATE FEB 04 1993 SOFTWARE VERSION DGEN 1 01 SOFTWARE VERSION MCOD 1 01 SOFTWARE VERSION FSIM 1 01 POWER ON COUNT 173 OPERATION TIME 300 h ATTEN COUNT 5dB 456 ATTEN COUNT 10dB 466 ATTEN COUNT 20dB 523 ATTEN COUNT 20dB 250 ATTEN COUNT 40dB 320 ATTEN COUNT 40dB 400 BOOT ROM ...

Страница 497: ...ion is switched on pressing the MOD ON OFF key switches on the modulations which were last switched off using the MOD ON OFF key On switching on using the MOD ON OFF key the modulation sources are used as defined in the modulation menus Access to the selection of the modulation to be switched using the MOD ON OFF key is possible in the UTILITIES MOD KEY menu Menu selection UTILITIES MOD KEY SYSTEM...

Страница 498: ...ER SLOPE Selection of the active edge of the external trigger signal POS The instrument triggers on the positive edge of the external signal NEG The instrument triggers on the negative edge of the external signal IEC IEEE bus command TRIG SLOP POS SWEEP BLANK TIME Selection of the blank duration NORM BLANK duration is set to the shortest duration possible LONG The BLANK duration is set for the PEN...

Страница 499: ...tate ON or OFF Menu selection UTILITIES BEEPER SYSTEM REF OSC PHASE PROTECT CALIB DIAG TEST MOD KEY AUX I O BEEPER INSTALL KEY BEEP STATE OFF ON FREQ 100 000 000 0 MHz LEVEL 30 0 dBm FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES Fig 2 274 Menu UTILITIES BEEPER KEY BEEP STATE Switching on off the beeper IEC bus command SYST BEEP STAT ON ...

Страница 500: ...YSTEM REF OSC PHASE PROTECT CALIB DIAG TEST MOD KEY AUX I O BEEPER INSTALL OPTION TO INSTALL SMIQB42 IS95 INSTALLATION KEY AMIQ CTRL VISIBLE ON OFF FREQ 100 000 000 0 MHz LEVEL 30 0 dBm FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES Fig 2 275 Menu UTILITIES INSTALL fitted with options OPTION TO INSTALL Selection of the option to be installed IN...

Страница 501: ...index Operation is analog to menu operation Ø Set the menu cursor to the index desired using the shaft encoder Ø Press the SELECT key Ø The information for the index marked is displayed Ø Press the RETURN key to exit the menu 2 31 Status By means of a STATUS page the SMIQ permits an overview over all settings of the instrument The settings are displayed in an abbreviated form The STATUS page is ca...

Страница 502: ...ge is exited using the RETURN key The instrument displays e g the long term message ERROR if there is a hardware error or WARNING if overrange settings have been made Notes An error message ERROR does not necessarily point to a defect instrument There are various operating states which can cause an ERROR message E g if the instrument is set to external reference but no external reference is connec...

Страница 503: ......

Страница 504: ...187 PDC 2 279 PHS 2 115 W CDMA 2 150 Baseband filter 3GPP W CDMA 2 182 3 165 GSM EDGE 3 97 W CDMA 2 157 3 154 Battery test data generator 4 2 RAM 4 2 Test procedure 5 41 Baud rate RS232 2 411 3 202 A 5 SERDATA 2 412 3 202 BB AM 2 60 3 50 BB AM output 2 7 Beeper 2 430 3 202 BER connector 1 15 BER interface 2 19 BIRTH DEATH Dwell period 2 84 3 92 Bit clock DECT 2 326 3 56 digital modulation 2 111 3 ...

Страница 505: ...annelization code enhanced channels 2 251 Channelization code Enhanced Channels 3 185 Channelization code generator 2 174 Character data 3 8 Characteristics distortion 2 387 Check rated characteristics 5 1 Checksum control list 3 41 4 2 data list 3 40 4 2 Chip clock 3GPP W CDMA 2 183 2 187 3 168 CDMA 2 143 3 106 W CDMA 2 160 3 156 Chip rate 3GPP W CDMA 2 182 2 338 CDMA 2 138 3 103 W CDMA 2 157 3 1...

Страница 506: ...3 3 137 signal 3GPP W CDMA 2 186 2 337 3 168 ARB 2 347 3 20 DECT 2 325 3 56 GSM EDGE 2 308 3 98 NADC 2 269 3 118 PDC 2 286 3 127 PHS 2 122 3 136 trigger 3GPP W CDMA 2 185 2 336 3 167 ARB 2 347 3 20 CDMA 2 141 3 105 DECT 2 325 3 56 digital modulation 2 110 3 77 GSM EDGE 2 307 3 98 NADC 2 268 3 117 PDC 2 285 3 127 PHS 2 122 3 136 W CDMA 2 159 3 155 Delay range Fading simulation 2 84 Delete all data ...

Страница 507: ...control mechanism 2 246 3 183 3 189 Maximum input level 2 259 mobile station 3 188 Multicode 3 187 OCNS channels 3 187 Overall symbol rate in uplink 2 255 overall symbol rate uplink 3 190 sequence length 3 184 Sequence length 2 248 symbol rate 2 248 3 184 test procedure 5 62 timing offset 2 249 3 184 Enhanced P CCHCP BCH State 2 241 Envelope control DECT 2 327 3 56 digital modulation 2 99 2 112 3 ...

Страница 508: ...RF sweep 2 397 3 112 Frequency modulation FM 2 61 3 78 test procedure 5 34 Frequency range 3GPP W CDMA 2 225 Frequency sweep LF 2 399 3 197 RF 2 396 3 149 FSK modulation digital modulation 2 89 Full rate CDMA 2 146 3 108 Functional test 4 1 G GET Group Execute Trigger 3 216 GPS 3 93 GSM EDGE 2 301 3 96 test procedure 5 46 Guard data field DECT 2 333 GSM EDGE 2 314 NADC 2 274 PDC 2 295 2 297 2 299 ...

Страница 509: ...433 FREQ 2 3 2 45 G n 2 5 HELP 2 9 2 432 k m 2 5 LEVEL 2 3 2 47 LOCAL 2 9 3 3 M µ 2 5 MENU 1 2 2 11 2 25 MOD ON OFF 2 9 2 58 2 428 PRESET 1 3 2 9 RCL 2 3 2 43 RETURN 2 5 2 23 RF ON OFF 2 9 2 26 2 54 SAVE 2 3 2 43 SELECT 2 5 2 23 STATUS 2 9 2 432 X1 Enter 2 5 Key words commands 3 6 Keyboard disabling 3 203 test procedure 5 8 L Leakage 2 67 3 66 LEARN LIST mode 2 404 3 111 LEV ATT calibration 2 422 ...

Страница 510: ... PM 2 63 BIRTH DEATH 2 83 call 2 25 cursor 2 23 DIGITAL MOD 2 101 DIGITAL STD DECT 2 322 DIGITAL STD GSM EDGE 2 305 DIGITAL STD IS 95 MODE FWD_LINK_18 2 136 DIGITAL STD IS 95 MODE REV_LINK 2 146 DIGITAL STD IS 95 MODE REV_LINK_CODED 2 148 DIGITAL STD NADC 2 266 DIGITAL STD PDC 2 283 DIGITAL STD PHS 2 119 DIGITAL STD WCDMA 3GPP Downlink 2 338 DIGITAL STD WCDMA 3GPP downlink menu 2 179 ERROR 2 433 f...

Страница 511: ...tor 2 383 installation 1 12 NORM Normal Burst GSM EDGE 2 312 NTRansition register 3 219 Numeric input field 2 3 suffix 3 7 values 2 3 3 9 Nyquist filter 3GPP W CDMA 2 182 3 165 CDMA 2 138 2 139 3 104 DECT 2 323 3 55 NADC 2 267 3 116 PDC 2 284 3 126 PHS 2 120 3 135 W CDMA 2 157 3 154 O OCNS 3 180 base station 3 187 Measurement 2 260 OCNS channels 3 187 fraction of power 2 258 Offset frequency 2 46 ...

Страница 512: ...5 Polarity BLANK signal 2 429 3 47 marker signal 2 429 3 113 3 196 pulse modulation 2 65 3 147 signal 3GPP W CDMA 2 186 3GPP W CDMA signal 2 337 GSM 2 308 Trigger ARB 2 347 3 20 Polynomial coefficient AM AM 2 385 Coefficient AM AM 3 63 coefficient AM PM 2 385 Coefficient AM PM 3 64 entering the parameters 2 385 equations 2 390 level correction 2 386 Level correction 3 64 PRBS 2 375 POW RAMP input ...

Страница 513: ...Sample setting 2 27 Sample and hold mode 2 50 Save frame DECT 2 329 3 58 frame GSM EDGE 2 311 3 100 frame NADC 2 272 3 120 frame PDC 2 289 3 129 frame PHS 2 125 3 138 instrument settings 2 43 3 16 mapping CDMA 2 145 3 107 SCPI conformity information C 1 introduction 3 5 Scrambling PDC 2 291 2 299 3 130 PHS 2 127 3 139 Scrambling code 2 232 Scrambling code generator 2 171 Scrambling Unit 2 174 Scro...

Страница 514: ...e modulation 2 57 Summation 2 177 Summing loop 2 418 slot 1 5 Sweep 2 392 level 2 398 3 146 3 151 level sweep 2 398 LF 2 399 3 197 outputs 2 394 RF 2 396 3 81 3 149 test procedure 5 24 trigger 2 394 3 210 Switchover to remote control 3 2 SYMBCLK input output 2 13 2 97 Symbol 2 25 Symbol clock CDMA 2 142 digital modulation 2 111 3 76 NADC 2 270 3 118 PDC 2 287 3 127 PHS 2 123 3 137 SYMBOL CLOCK inp...

Страница 515: ...PS 3 94 GSM EDGE 2 306 3 98 inhibition 3GPP W CDMA 2 337 ARB 2 347 3 20 inhibition 3GPP W CDMA 2 185 3 167 inhibition CDMA 2 141 3 105 inhibition DECT 2 325 3 56 inhibition digital modulation 2 110 3 77 inhibition GSM EDGE 2 307 3 98 inhibition NADC 2 269 3 117 inhibition PDC 2 286 3 127 inhibition PHS 2 122 3 136 inhibition W CDMA 2 159 LIST 2 402 3 212 MSEQ 3 214 NADC 2 267 3 117 OFF TIME ARB 2 ...

Страница 516: ... CDMA 2 150 Multicode 3 156 test procedure 5 52 Trigger 2 158 W CDMA 3GPP 2 169 3 159 Additional 3 180 Enhanced Channels 3 180 OCNS 3 180 test procedure 5 53 White space 3 11 WinIQSIM Support of ARB 2 344 X X field DECT 2 333 X_AXIS output 2 21 2 394 XY recorder 2 394 3 149 Z Z field DECT 2 333 3 60 ...

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