Servlatchval | Agilent Technologies 8922M, S GSM instruction

Making Measurements

Advanced Features

NOTE	The GPIB requires the use of base 10 values, 432h = 1074d, for example:
	SERV:LATCH:VAL 1074.

The value entered is relative to the beginning of the zero bit of the zero slot on the downlink baseband.

A 4.7 bit modulator delay occurs between the baseband and the RF domain which must also be taken into account. Since the value may only be integer, round to the nearest whole value.

The following timing error is introduced due to 156/157 bit timing. Timeslot=0,4 No Error

Timeslot=1,5 +.75 bit error (early trigger) Timeslot=2,6 +.50 bit error Timeslot=3,7 +.25 bit error

2Use MEAS_TRIG_OUT on the rear panel SYSTEM_BUS connector.

This is the delayed trigger from the Measurement System. In the normal ACTIVATED operation, the Protocol Processor sends triggers to the Measurement System on the zero bit of each downlink TCH burst. The Measurement System applies the ‘Meas Trig’ ‘Trigger Delay’ to this input and then, after the elapsed time, begins making its measurement. After this elapsed time, the Measurement System also sends a trigger transition to the MEAS_TRIG_OUT signal on the rear panel SYSTEM_BUS connector.

The trigger is only generated when a measurement is being made. This signal may be used to trigger an externally connected measurement device such as the HP/Agilent 71150/250 GSM high performance spectrum analyzers.

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Agilent Technologies 8922M, S GSM manual Servlatchval

Contents

Agilent Part No January User’s Guide Agilent Technologies 8922M/S GSM Test SetPage Contents Screens Keys Connectors Appendix a Contents-6 Warranty Responsibilities of the Customer Restricted Rights Legend Electromagnetic Compatibility EMC Information Declaration of Conformity Safety Information Do not Operate in AN Explosive Atmosphere ISM 1-A Safety Symbols Sales and Service Offices Canada Agilent Technologies 8922M/S Documentation Description Typeface Conventions Installing Your Agilent 8922M/S Using this Chapter Fuse Selection Fuses and Power CordsVoltage Selection Card and Fuse Installation Other Fusing Line Voltage Power Cords Rear View Connections Installation Overview Access Config Screen High-stability timebase set-up General Information Making Measurements Making Measurements CW Generator Test ModeAgilent Technologies 8922M/S Operating Modes Active Cell Active CELL+ Test MODE+ CW GENERATOR+ Agilent 8922M/S Operating Modes Making a Call From the Mobile Phone to the Agilent 8922M/S Active Cell Making a Call From the Agilent 8922M/S to the Mobile Phone Active Cell Mode Changing Channel, Timeslot, and the Transmit Level Shift , Cell Config MS Info Mobile phone Test Mode Select Test Mode Mobile Phone Receiver Testing Using Test Mode CW Generator Ancillary Measurements MeasurementsGSM Specific Measurements Method Peak Power MeasurementsMeasurement Measurement Method PhaseFrequency Error Phase and Frequency Error Measurements Power Ramp Measurements Power Ramp Mask Measurements Blank field Measurement SummaryFailed Passed Pulse Measurements Bit Error Rate Measurement Bit Error Rate Measurements Output RF Spectrum Measurements 31,4 Measurements 32 dB 51 dB 70 dB 39 dBm 27.5 37 dBm ≤ 33 dBm Method Spectrum Analyzer Measurement Oscilloscope Measurements Scope Audio Measurements Audio CW Measurements Out port Is a Message Line displayed at the top of the screen? If You Have Problems with a Measurement If You Have Problems with a Measurement Trigger Timing B Trigger Timing a Trigger Range For Pulsed RF Is an Error Message Displayed in the Sync Status field? Solution 1 Trigger Timing Possible Solutions to Sync Status Errors Solution 2 Midamble Sync Solution 3 Level If FM Errors Solution 4 Amplitude Envelope Other Screens Advanced Features ⎛ RFin 20 ⎞ Advanced Features External Measurements UsingMaking Synchronized Servlatchval Operations Unexpected Advanced Features Advanced Features Advanced Features Verifying Performance About This Chapter Setting up the Tests Equipment HP/Agilent Model Number Getting the Right Equipment Back Conversion Installing and Operating the SoftwareTo Load the Program Using Compatibility Switch Understanding the Tests To Run the Program 1 Type RUN, press Enter Forward ConversionGpib Addresses Theory of the Test Test 01 Signal Equipment Required Generator LevelThings To Check In Case Of Problems Understanding the Tests Test 02 Signal Generator Spectral Purity Understanding the Tests Test 07 Oscilloscope Equipment Required Test 06 Audio Equipment Required Frequency Analyzer Test 09 RF Analyzer Equipment Required Gmsk Modulation Test 08 RF Analyzer Equipment Required Level Test B Spectrum Analyzer Option 006 only Equipment Required Test a RF Analyzer Equipment RequiredPulse Demodulation Assemblies Tested P=Primary S=Secondary Understanding Test Failures GSM900 Functionality Agilent Technologies 8922M/S SpecificationsRF Generator Frequency Specifications SWR Output Pulse Modulation Spectral Purity AM for Level Control Agilent 8922M Only DB Pulse Modulation Agilent 8922M only CW RF Frequency Measurement RF Analyzer Frequency SpecificationsCW RF Power Measurements RF In/Out Only Pulse ON/OFF Ratio Measurement Requires Option Peak/Transmitter Carrier Power MeasurementPower Measurement Accuracy Inaccuracy due to Noise for overshoots ≤ 1 dB Accuracy ON/OFF 40 dB, RF In/Out onlyAmplitude Envelope Measurement Gmsk Data Recovery Agilent 8922M only Phase and Frequency Measurements Pulse Demodulation Output Agilent 8922M only FM Demodulation Output Agilent 8922M only Dynamic Range dB Span Bandwidth Spectrum Analyzer Specifications Option Output Level Audio Source Frequency SpecificationsAudio Analyzer Frequency Measurement Specifications Distortion Measurement AC Voltage MeasurementDC Voltage Measurement Audio Detectors Oscilloscope SpecificationsAudio Filters Remote Programming General Specifications Operating Environment Using both arms to lift instrument Tunable Reference Mode Reference SpecificationsFixed Reference Mode Agilent Technologies 8922M/S Speciﬁcations Screens Data Entry Field Types Field Types Audio Scope In selects the Scope in Measure front-panel See Also Keys High LIMIT, LO LIMIT, AVG Meas Reset Meas Cntl Speaker ALC Speaker Vol Choices None Speech Selected measurement type Bit ErrorResults CRC or FE Control Res Type Measure Bit Error This field is not featured in the Agilent 8922S 11/19. Ratio/Count Meas Cntl Ratios Bit Error Cell Configuration GSM Arfcn Field StateAmplitude Range Through Aux Bcch BCC 10. MA1 Control ChLAC Range MCC 11. MA2MAIO1 MAIO2 Settable Activated Cell Configuration E-GSM, DCS 1800, PCS Cell Conﬁguration E-GSM, DCS 1800, PCS BCC Base Station Colour Code is displayed in this ﬁeld Number 1 MA1 MAIO1 Active Cell TestMode CW Generator Cell Control Active Cell GSM/DCS1800/P Call See Also Speciﬁcations OnlyRange GSM900 GSM TX Level Mobile Timeslot Mobile Range Through 6 , 1, and 7 are used for call maintenance See Also Cell Control Cell Control Active Cell +Decode Errs Single/Hop PCS Cell Control Test ModeChoices GSM DCS TX Lev Channel Cell Control CW Generator Shown will not correspond to the channel in amplitude Cell Control Single Other Settings Call Status TCH State Caller Connect Execute DRXDTX Or off Tmsi Inactive Active Mode19. MM Loc Upd Ident Auth CCITT-23 Choices CCITT-15 2 Counts Reset CallRACHs Timing Err Based on the TX Level field Control Choices Cell Control Signaling Speech Test Timeslot Mode Choices Aux RF Configure Aux RF Out Although a power cycle is recommended OPT O ConfigCntl Offset RF IN/Out Choices 13 MHz 10 MHz Time Service CW Freq, CWFreqErr CW MeasurementAmplitude Expected Input RF IN/OUT CW PowerFrequency Expected Input Meas Reset Meas Cntl Cntl IN/OUT port when executing this function Fast Bit Error Mobile Burst Delay range 0 through FF at Start ConfigurationSpecification Choices Bits Lines/Page Form FeedInst Echo Line Feed Print Title See Also Keys PrintChoices Serial Parallel Stop the instrument from transmitting to the computer Stop data transmission from the computer to the instrumentChoices 300 600 1200 2400 4800 9600 19200 Serial Ibasic control of the serial input port Logging Be the lowest frequency Arfcn in the hop sequence Measurement Sync Burst Used Burst Sel Midamble Demod ArmFirst Bit See Also Screens Meas Sync Hopped TCH Arfcn Cntl To the selected Midamble or User Defined Sync Pattern Trig Qual Trig DelaySync Pattern Start Position Message Implements the authentication algorithm specified in Rec MS Information / SignalingAuthentication Choices Mode Applies if Special Option H05 is fitted Location CipheringImsi Attach/Detach Last LAI MS Imsi MS BandCapability MS Revision MS Information / Signaling BS Sres RandMS Sres Oscilloscope, Main Controls Time/div Meas ResetControls Marker Oscilloscope, Trigger Controls Pre-Trig Auto/NormCont/Single Level div Screens Oscilloscope, Marker Controls Position Marker ToPeak+ Sync Status Output RF Spectrum, Main View Option 006 OnlyFreq Offset View Output RFSpectrum Single/Cont Output RF Spectrum, Trace View Option 006 Only SyncStatus Phase and Frequency Error Multiburst OFF OFF ON/OFF Done Phase and Frequency Error Multi-burst on RMS phase ErrorsPeak Phase Error Mean Maximum Minimum Last Peak phase Wanted Burst Only Choices Marker Pos Phase/Freq, Phase ErrBursts Frequency error Phase/Freq, Data Bits Trg Timing Polarity Pwr Ramp Rise Edge Pk TX Pwr Mask Pwr Ramp, Top 2 dB Pulse Puls Rise Puls Fall Pwr Ramp, Fall Edge 100 Ampl1-12 Pwr Ramp Summary Time1-12 Power over the useful bits in the measured burstFlatness Summary 103 Fall Pos Pwr Ramp Pulse Option 006 Only Rise Pos See Also Making Measurements Solving Problems MessagesMeas Sync Sync Status 106 MarkerPos Pwr Ramp Pulse Rise Option 006 Only POnOffRise Pwr Ramp Pulse Fall Option 006 Only POnOffFall RF Generator / RF Analyzer AF Gen Accuracy AGC ModeRF Generator / RF Analyzer RF Analyzer Hop Offset Hop Mode Range RF Input Hop TrigValue DAC Value RF Generator / RF Analyzer RF GenAtten Hold Range 10.0 to 1015.0 MHz Hop Mode Hop TrigDC AM Frequency Gmsk RF Output Pulse Service Code Default for message 2 isSMS Cell Broadcast Message Broadcast Language 121 Spectrum Analyzer, Main Controls Option 006 Only Span Max Hold Meas ResetCenter Freq Ref Level Spectrum Analyzer, RF Gen Controls Option 006 Only Center Freq Marker To Next Peak Marker To Spectrum Analyzer, Marker Controls Option 006 Only Range To 10 divisions Auto Hold Input Atten Spectrum Analyzer, Auxiliary Controls 10 dB 20 dB 30 dB 40 dB Video BWDB Input Atten Choices GSM900 GSM, DCS 1800 Tests 130 Keys Key Map Assign CancelFunction Keys Adrs Hold END CallHI Limit To Turn Off or On a Low limit Incr SETLO Limit To Set a Low Limit Print MeterMS Info Recall To Recall an Instrument Setup To Turn a Reference Off or On REF SETCertain value To Set a Reference Tests To Save an Instrument SetupRFG/RFA Save To Assign a Local Key Local KeysL1, L2 That is currently displayed To Assign a Global Key Global Keys Units Keys Connectors See Also Screens RF Generator/RF Analyzer, RF Gen Front-Panel Connectors of the Agilent Technologies 8922M/S Clock Input Clock Demodulation OUTAgilent 8922M Only Clock Modulation Agilent 8922M Only See Also AM/SPEECH Modulation Agilent 8922M Only Data Demodulation OUTRequirements FM Demodulation OUT Screens Audio Audio In Lo Monitor Demodulation OUT Modulation Pulse Demodulation OUT MON/SPEECH Agilent 8922M OnlyAudio OUT Measure Pulse Modulation Agilent 8922M Only Valid Demodulation OUT Trigger in Measure See Also Speciﬁcations REF Rear-Panel Connectors of the Agilent Technologies 8922M/S Pin Usage Function To/From Emmi BUS Agilent 8922M Only Gpib Electrical Characteristics of the DAI/EMMIEmmi Connector Pin Numbers See Also Logical State Voltage Current General Purpose Agilent OPT 001 REF OUT 131 Scope Specifications Signal Descriptions for System BUS Gexttrig DEMODDATA, Demodclk DemodvalidFpdata Fpclock T1-Pin 26, T2-Pin 8 Select/Control PulsemodinPin 6 Input RPBURSTT1 Rpgsmrst Rpdmodtrig Pin 7 InputRpgsmrstin Pin 3 Input RPHOPADRS0, through RPHOPADRS9, RPHOPADRS10 Pin 11 Input RphopinhibitPin 30 Input Rprstseq Pin 29 Input RprxhopPin 10 Input Rpseqhop Seqtrigout RPTXD, RprxdRptxhop Input Usememextt 27 Pin InputRIG Digital Demodulation Timing Specification Table Timing Diagrams Digital Demod Timing Diagram Frequency Hop Timing Specification Table RF Generator Hop Address Source = Ext Timing Diagram RF Analyzer Hop Address Source = Ext Timing Diagram RF Generator Hop Address Source = Int Timing Diagram RF Analyzer Hop Address = Int Timing Diagram Reset Hop Once Address Source = Int Timing Diagram Reset and Hold Hop Address Source = Int Timing Diagram Hop Inhibit Address Source = Int Timing Diagram Messages Communication Failures Firmware revision error in module Firmware Error Sync Status Protocol Error Messages Following is a brief description of the timers Timers Timer Values Call Control Timers Data Link Layer Disconnects DisconnectsPhysical Layer Disconnects Call Control Layer Disconnects Layer DisconnectsManagement Layer Disconnects Host I/O Error Operating System Error Unknown Errors Protocol Log Examples Of Typical Calls Monitoring For Protocol Failure And Recovery During Test Instrument Basic Ibasic Agilent Technologies 8922M/S Instrument Basic OverviewThis Chapter Tests Subsystem Programs That Do Not Use the Tests Subsystem Programs That Use the Tests Subsystem Controlling HP 8922M/S Functions Connected Instruments Configuration and Instrument Control For Programming Hardware Connections Agilent 8922M/S Configuration Serial Port Connections Serial Port Configuration for ProgrammingConnecting the Serial Port Set Data Bits to ConfiguringConfiguring an IBM-Compatible PC With HP AdvanceLink Set Parity to none Set the Global Conﬁguration settings Controller screen Verifying Serial PortTo Ibasic Operation Loading, Storing, and Running Storing an Ibasic Program On a Gpib Disk Drive Running Your Program Loading a Test ProcedureStoring Ibasic Programs On Memory Cards Loading, Storing, and Running Making or Deleting Test Procedure Files Test Procedure and Test Library Files Sequence Making a Test Procedure FileRunning a Test Controller Accessing the Agilent Access the Tests screen by pressingEntering and Editing Programs 8922M/S’s Ibasic PROGram Interface Commands Using HP-IB Downloading a Program Into the Agilent 8922M/S Other Prog CommandsDownload Program for Computers using Gpib Preparing the Agilent 8922M/S to Receive Programs Line-by-line Entry and Editing Entering Commands Memory Cards Using Memory Cards Memory Card Part Numbers Type Inserting a Memory CardTypes of Memory Cards Initialize Internal Initializing an Sram Memory Card Backing Up the Memory-Card Programs Setting the Write-Protect SwitchSetting the Sram Write-Protect Switch Procedure for Backing Up a Memory Card Filenames are prefixed with a lowercase l To the manufacturer’s instructions Memory Card BatteryReplacing the Memory-Card Battery Contaminate battery contacts in the memory-card Code Files Programming and Using the Tests SubsystemProcedure Files Tests Subsystem File Descriptions Main Tests Subsystem Screen Tests Subsystem File RelationshipTests Subsystem Programming and Using the Tests Subsystem Program Status Setting Up the Test Execution ConditionsIbasic Programming To Continue or Pause After Each Test To Have Testing Stop or Continue on a UUT FailureTest Execution Conditions To Enter Comments in the Output Heading Field To Select Printing ConditionsTo Have Test Results Appear on a CRT or Printer Making a Test Sequence Using AutostartTests Screen of the Agilent 8922M/S Test-Sequence Screen Editing Test Specifications Chapter, select the following keys Edit Sequence Screen on the HP/AgilentEditing Test Parameters Edit Parameters Screen on the HP/Agilent Configuring External Instruments for Gpib Control 17 on General Organization Instrument-Configuration ScreenProgram Structure for Tests Subsystem Programs Program Listing Program Example RUN Through the Sequence of Tests Test Program Listing Explanation Linenumber Command Description Programming and Using the Tests Subsystem Programming and Using the Tests Subsystem Creating a Procedure File With No Library Creating a Library And Default Procedure File Appendix a Purpose Equipment Required Figure A-1 Cabling Setup Front View Connecting the Agilent 8922M to the HP/Agilent 37900D Latch Setting Up the Agilent Technologies 8922MCamp On Card Setting Up the HP/Agilent 37900D SLP Connection How to Obtain a Protocol LogCheck Real Time LoggingStart-up Make Call End Call SystemInformation sent Received Additional Information Remote Control of Protocol Logging Primitive Protocol Log of a Typical Call Protocol Log of a Typical Call MM-CC Mmdata CC Call Confirmed 83 08 Frame PH-DL Phdata Sdcch UI P0 CR0 SAPI0 M0 Frame DL-PH Phdata Sdcch I Nr1 Ns1 P0 CR1 SAPI0 M0 RR Assignment Command FrameMM-RR Rrsync Frame Frame DL-RR Dldata Facchf CC Connect 83 07 Frame DL-RR Dldata Facchf CC Alerting 83 41 Frame DL-RR Dlrelease Facchf Frame Call setup is completeGoes to NEW TCH2 Intra-cell handover is complete Inter-cell handover to TCH1, Single TCH on Arfcn 30, slot TCH Agilent 8922M/S configures to new DL-RR Dldata Facchf RR Handover Complete 06 2c 00 Frame Port Frame Inter-cell handover completeCall termination 2449761 CC-HST Ccrelind Frame PH-DL Readytosend Facchf Frame Protocol Log of a Typical Call Glossary Arfcn CRC Gmsk Rssi Glossary Index Index-2 Index-3 Index-4 Index-5 Index-6 Index-7 Index-8 Index-9 Index-10 Index-11