Agilent Technologies 8922 P manual Establishing a call

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Manual operation

Establishing a call

Establishing a call

You establish a call in the same way as for a speech call.

Step 1. Ensure that the master timeslot is the timeslot currently being measured on the master unit.

To do this, navigate to the HSCSD control screen on the master unit and set the Measure ﬁeld to Master. If you do not do this the HP/Agilent 8922 does not see the signalling from the mobile, and call set up fails.

Step 2. Conﬁgure the call by navigating to the HSCSD control screen on the master unit, and setting Call Type as a 2x2 or 2x1 and Data Rate to 9.6 or 14.4 kbits/s as required.

Step 3. Connect the mobile to the RF IN/OUT port located on the front panel of the master unit’s HP/Agilent 83220 (see the HP/Agilent 8922 Multi- Band Test System Supplementary User’s Guide for more information about this port).

Step 4. Switch on the mobile.

The mobile now camps onto the broadcast channel.

Step 5. Once the mobile is connected and successfully camped on to the master unit, initiate the call from the mobile (for example, by pressing SEND on the mobile, or by pressing ORG CALL on the HP/Agilent 8922 master unit). The display on the HP/Agilent 8922 now shows that the call status is CONNECTED.

If the call cannot be established, it may be because the uplink power may differ from the HP/Agilent 8922’s expected input level. The most likely reason for this type of problem is that the mobile or the IF Link cable has not been calibrated. For details on calibrating the system “Calibrating the overall system” on page 14.

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Chapter 3

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Contents HP/Agilent 8922 GSM Hscsd Test System Option #K09 Warranty Limitation of Remedies and Liability Assistance Statement of Compliance Sound Emission Manufacturer’s DeclarationProhibited Earthing ground, incorporated in the power cord. The mainsInstrument dangerous. Intentional interruption is Safety Symbols Safety SymbolsISM 1-A Overview User’s Guide AbbreviationsContents Remote operation Returning equipment for repair Upgrading the HOP Controller ROM and Firmware Understanding the HP/Agilent Getting an overview of the HP/Agilent GSM Hscsd Test System HP/Agilent 8922 GSM Hscsd Test System, option #K09Chapter Features Setting up the HP/Agilent Before you start Checking the HP/Agilent 8922 Requirements for Hscsd Making the front panel connections Front panel connectionsMaking the rear panel connections StepRear panel connections Enabling the Hscsd functionality Inserting the keycard into the HP/AgilentTests screen Conﬁg screen Calibrating the overall system Manual operation Conﬁguring the system Message Frame reset sent appears in the top left-hand corner Establishing a call Measuring BER Making measurementsChoosing which timeslot to measure Changing power levels, timeslot and channels Hscsd control screenEnding a call Ending a call Screens Conﬁg screen Instrument typeChapter Slave address Hscsd screen Master downlink amplitudeSlave offset Master channelSelect ‘Master’ to measure before signalling mobile Master timeslot Slave timeslotCall Type Data rate MeasureMaster Tx level Master input level Master mode Slave Tx levelSlave input level Slave control To Screen menu Peak power displayMobile reports Fast BER Screen Fast BER screenLoopback Remote operation Introduction Conﬁgure Instrument Type comand syntax Conﬁgure Subsystem Gpib CommandsCONFigureINSTrumentTYPE DISPlaySCReen Hscsd Display Subsystem Gpib CommandsDisplay Screen command syntax Hscsd Subsystem Gpib Commands Hscsd command syntax master unit Hscsd command syntax slave unit SYNC? TCHHSCSdMASTerTCHARFCn HSCSdMASTerSTATusTCHTSLot Command 0ptions HSCSdMASTerDOWNlinkAMPLitudeHSCSdMASTerTCHTLEVel HSCSdMASTerUPLinkAMPLitude HSCSdMASTerUPLinkAMPLitudeCONTrol HSCSDMASTerCALLTYPE HSCSDMASTerCALLRATE HSCSdSLAVeSTATusSYNC HSCSdSLAVeSTATusTCHTSLot? HSCSdSLAVeDOWNlinkAMPLitudeOFFSet HSCSdSLAVeTCHTLEVel HSCSdSLAVeUPLinkAMPLitude HSCSdSLAVeUPLinkAMPLitudeCONTrol Remote operating procedures Conﬁguring the systemEstablishing a call Making measurementsChanging channels, timeslot and power levels Ending a call Example code showing a dual-band handover from E-GSM to DCS Clear ScreenPause Example code showing a dual-band handover from E-GSM to DCS Returning equipment for repair Return Procedure Chapter Sales and Service Ofﬁces Canada Sales and Service Ofﬁces Upgrading the HOP Controller ROM and Firmware Upgrading the Hop Controller ROM ROMSide View Figure A-3 Removing the A33 Hop Controller Board Figure A-4 Removing the A33 U62 HOP Controller ROMUpgrading the Hop Controller ROM Upgrading the ﬁrmware