Programming an Inner Loop Power Measurement

Last updated: January 16, 2009

This section provides an example of how to make inner loop power measurements via GPIB.

The basic procedure to test inner loop power is as follows:

Establish an RB test mode connection between the UE and test set (see Step 4: Make a Connection ).
Set up the measurement using the SETup:WILPower commands.
INITiate the measurement using the INITiate command.
FETCh the measurement results using the FETCh:WILPower commands (or use the READ:WILPower[:ALL]? command to both initiate and fetch the measurement as a sequential operation).

Programming Example

 
10 ! Inner Loop Power Programming Example
20 ! 3GPP TS 34.121 5.4.2 Inner Loop Power Control
30 ! in the Uplink
40 !
50 ! This programming example assumes that there is an
60 ! RB Test Mode connection between the test set and UE.
70 !
80       Testset=714
90 !
100 ! *** Set Up Test Parameters ***
110 !
120       OUTPUT Testset;"CALL:POWer -93"
130 ! Set Cell Power to -93 dBm
140 !
150 ! *** Set Up Measurement Parameters ***
160 !
170       OUTPUT Testset;"SETup:WILPower:NSLOts S45"
180 ! (For test segment A) set Number of Slots as desired
190       OUTPUT Testset;"SETup:WILPower:MAXimum:POWer:THReshold:TEST:CONTrol:AUTO ON"
200 ! (For test segments E-H) set Maximum Power Threshold for Test Control to Auto
210       OUTPUT Testset;"SETup:WILPower:MAXimum:OUTPut:POWer:TEST:TOLerance 0.7"
220 ! (For test segments E-H) set Maximum Output Power Test Tolerance to 0.70 dB
230       OUTPUT Testset;"SETup:WILPower:Minimum:POWer:THReshold:TEST:CONTrol:AUTO OFF"
240 ! (For test segments E-H) set Minimum Power Threshold for Test Control to Manual
250       OUTPUT Testset;"SETup:WILPower:Minimum:POWer:THReshold:TEST:MANual -49"
260 ! (For test segments E-H) set Minimum Power Threshold for Test Manual to -49 dBm
270 !
280       CLEAR SCREEN
290 !
300       FOR I=1 TO 7
310           SELECT I
320           CASE 1
330               Test_segment$="A"
340           CASE 2
350               Test_segment$="B"
360           CASE 3
370               Test_segment$="C"
380           CASE 4
390               Test_segment$="E"
400           CASE 5
410               Test_segment$="F"
420           CASE 6
430               Test_segment$="G"
440           CASE 7
450               Test_segment$="H"
460           END SELECT
470 !
480           OUTPUT Testset;"SETup:WILPower:SEGment ";Test_segment$
490 ! Set Test Segment
500 !
510 ! *** INITiate and FETCh Measurements ***
520 !
530           OUTPUT Testset;"INITiate:WILPower"
540 ! Initiate an Inner Loop Power measurement.
550           OUTPUT Testset;"FETCh:WILPower:NSLOts?"
560 ! Fetch number of slots measured
570           ENTER Testset;Numslots
580           OUTPUT Testset;"FETCh:WILPower?"
590 ! Fetch Inner Loop Power measurement results.
600           ENTER Testset;Integrity,Pass_fail
610 ! Retrieve the results.
620 !
630 ! *** Print Measurement Results ***
640 !
650           PRINT
660           PRINT "Test Segment ",Test_segment$
670           PRINT "Number of slots measured         = ",Numslots
680           PRINT "Integrity Indicator (0 = Normal) = ",Integrity
690           PRINT "Pass/Fail (0 = Pass, 1 = Fail)   = ",Pass_fail
700       NEXT I
710 !
720       END

A sample output from this programming example is shown below:

Programming an Inner Loop Power Measurement

Programming Example

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