Programming a Change of TFC (Transport Format Combination) Measurement

Last updated: January 16, 2009

This section is only applicable to the lab application.

This section provides an example of how to make change of TFC measurements via GPIB.

The basic procedure to perform change of TFC measurements is as follows:

Ensure that Uplink Dummy DCCH Data is set to Off ( CALL:UPLink:DCCHannel:DDATa ).
Establish an RB test mode connection between the UE and test set (see Step 4: Make a Connection ).
Configure the change of TFC measurement parameters as desired using the SETup:WCTFormat commands.
Use the INITiate :WCTFormat command to start the measurement.
Use the FETCh:WCTFormat query to obtain the measurement results (or use the READ:WCTFormat[:ALL]? command to both initiate and fetch the measurement as a sequential operation).

Programming Example

 
10 ! Change of TFC Measurement Programming Example
20 ! This programming example assumes that Uplink Dummy DCCH Data is
30 ! set to Off, Uplink DPCH Bc/Bd Control is set to Auto, UL CL Power
40 ! Ctrl Algorithm is set to Two, and that there is an RB Test Mode
50 ! connection between the test set and UE.
60 !
70 Testset=714
80 !
90 ! *** Set Up Test Parameters ***
100 !
110 OUTPUT Testset;"CALL:MS:POWer:TARGet 0"
120 ! Set MS Target Power to 0 dBm.
130 OUTPUT Testset;"CALL:CLPControl:UPLink:MODE UDOWn"
140 ! Set UL CL Power Ctrl Mode to Alternating.
150 !
160 ! *** Set Up Measurement Parameters ***
170 !
180 OUTPUT Testset;"SETup:WCTFormat:COUNt 5"
190 ! Set Multi-Measurement Count to 5.
200 !
210 ! *** INITiate and FETCh Measurements ***
220 !
230 OUTPUT Testset;"INITiate:WCTFormat"
240 ! Initiate a Change of TFC measurement.
250 OUTPUT Testset;"FETCh:WCTFormat?"
260 ! Fetch Change of TFC measurement results.
270 ENTER Testset;Int,Down_pwr,Down_err,Down_pf,Up_pwr,Up_err,Up_pf
280 ! Retrieve the results.
290 !
300 ! *** Print Measurement Results ***
310 !
320 CLEAR SCREEN
330 PRINT "Change of TFC Measurement Results:"
340 PRINT
350 PRINT "Integrity Indicator                      = ",Int
360 PRINT "Step Down Relative Power (in dB)         = ",Down_pwr
370 PRINT "Step Down Error (in dB)                  = ",Down_err
380 PRINT "Step Down Pass/Fail (0 = pass, 1 = fail) = ",Down_pf
390 PRINT "Step Up Relative Power (in dB)           = ",Up_pwr
400 PRINT "Step Up Error (in dB)                    = ",Up_err
410 PRINT "Step Up Pass/Fail (0 = pass, 1 = fail)   = ",Up_pf
420 !
430 END

Programming a Change of TFC (Transport Format Combination) Measurement

Programming Example

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