6 List Sequence Measurements
List Sequence Measurements
Advanced Setup (SCPI Only)
Advanced setup is for radio format specific parameters for the whole sequence. These parameters will
affect all related measurements and acquisitions.
NOTE: Advanced setup is not available through menus; the parameters can be set only by means of SCPI
commands.
" Command to set up analyzer sequence for ILPC measurement" on page 305
"Command to query the sequence version for sequence studio" on page 307
"Command to setup multiple analysis steps" on page 308
GSM/EDGE Setup
The advanced setup for all GSM/EDGE related measurements:
"Ignore Error In Average" on page 295
"PVT Time Offsets" on page 296
Ignore Error In Average
Per GSM specification, the signal pattern transmitted by DUT would uses 26 frames to build a multi-frame.
Frames 0 to 11 and 13 to 24 carry speech or user data. Frame 12 is used as SACCH, Frame 25 is idle,
allowing the base station to measure field strengths from mobiles in other cells, when needed for
handovers. 26 frames last 120 msec. So the DUT has 2 Idle Slot on Frame 12 and Frame 25.
The GSM/EDGE related measurements will report errors when performing calculation on these idle slots.
In GSM, certain frames are “idle” (meaning that the mobile device does not send out a signal), and during
measurement the idle frames generate synchronization errors. These errors can disrupt measurement in
average mode.
In average mode, with this parameter OFF (the default setting), if an error is found, the measurement
application terminates the analysis step currently in process, and proceeds to the next step. In this case,
the averaged results are not available.
If this parameter is ON, the application does not terminate the analysis step when an error is found. The
measurement is made, but all results with errors are excluded from the average. In this case, the actual
number of averages may be less than the requested number of averages, because some results were
excluded.
The actual number of averages included in the result for a particular analysis step can be found by
including the AVERage parameter in a SCPI query (FETCh, READ, or MEASure). For example:
:FETCh:LSEQuencer[1]: ACQuire[1]|2|…|512:ASTep[1]|2|…|1000:AVERage?
Sequence Analyzer User's & Programmer's Reference
295
Содержание E6650A EXF
Страница 34: ...1 About the Test Set Mouse and Keyboard Control 34 Sequence Analyzer User s Programmer s Reference...
Страница 94: ...2 Programming the Test Set Common Commands 94 Sequence Analyzer User s Programmer s Reference...
Страница 129: ...4 Mode Functions Undefined variable Primary ProductName Sequence Analyzer User s Programmer s Reference 129...
Страница 145: ...5 System Functions Undefined variable Primary ProductName Sequence Analyzer User s Programmer s Reference 145...
Страница 206: ...5 System Functions System 206 Sequence Analyzer User s Programmer s Reference...
Страница 214: ...6 List Sequence Measurements File File See File on page 146 214 Sequence Analyzer User s Programmer s Reference...
Страница 474: ...6 List Sequence Measurements Mode Mode See Mode on page 130 474 Sequence Analyzer User s Programmer s Reference...
Страница 478: ...6 List Sequence Measurements Print Print See Print on page 151 478 Sequence Analyzer User s Programmer s Reference...
Страница 642: ...6 List Sequence Measurements System System See System on page 152 642 Sequence Analyzer User s Programmer s Reference...