Step 6: Reconfigure Test Set and Mobile Station Connection Parameters

Move to RTAP/FTAP Connection to Allow Transmitter/Receiver Testing

You must have an RTAP connection open to test the access terminal's transmitter, or an FTAP connection open to perform receiver testing. In this step, you thus may need to change the Test Application Protocol parameter so that you may test the access terminal's transmitter or receiver.

Hand Off to a New Channel or Band

In this step you may choose to move to a new band and/or channel for testing. To do this you:

1. Specify the handoff band and/or channel using the CALL:SETup commands.
2. Initiate a handoff using the CALL:HANDoff command.
3. Query the data connection state to verify it is still connected, using either the CALL:DCONnected or CALL:STATus[:STATe]:DATA? query.

An excerpt from the comprehensive example program is shown below:

 
1750 !**************************************************************************
1760 ! STEP 6: RECONFIGURE TEST SET AND ACCESS TERMINAL CONNECTION PARAMETERS
1770 !         (Perform a handoff to a new channel)
1780 !**************************************************************************

1440       Handoff_band$="USPCS"
1450       ! Only specify handoff band when performing interband HO

1810 !      Handoff_chan=1023          ! Hand off to "high" channel for test

4640 !***Set up a hard handoff***
4650 !
4660       OUTPUT Testset;"CALL:SETUP:BAND "&Handoff_band$
4670       ! Specify the cell band to hand off to
4680       OUTPUT Testset;"CALL:SETUP:CHANNEL ";Handoff_chan
4690       ! Specify the channel number to hand off to
4700 !
4710 !***Perform a hard handoff***
4720 !
4730       OUTPUT Testset;"CALL:HANDOFF"
4740       ! Initiate a hard handoff
4750 !
4760       IF NOT FNConnected THEN
4770       ! Verify connection is still open after handoff
4780           DISP "Handoff attempt failed, program stopped"
4790           GOTO End_program
4800       ELSE
4810           PRINT
4820           Print_results("Handoff completed to channel: ",Handoff_chan,"")
4830           PRINT "Call connected"
4840           PRINT
4850           Current_chan=Handoff_chan
4860           Band$=Handoff_band$
4870 !
4880       END IF

14460  Connected: DEF FNConnected ! Function to check connected state
14470           COM Testset,Result_file$
14480           OUTPUT Testset;"CALL:DCONNECTED?"
14490           ! Query the connected status
14500           ENTER Testset;Connected
14510           RETURN Connected
14520           ! Function returns 1 for connected, 0 for idle or session open
14530       FNEND

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