3 Short-Range Comms & IoT Mode
3.8 SEM Measurement
Always returns ON
Dependencies Only appears in VXT models M9410A/11A/15A
Preset
ON
State Saved Saved in instrument state
Range
ON
Offset/Limits Config Table
Enables you to set up the measurement parameters for offset pairs and to set the
power limits for start and stop frequencies of the selected offsets. For example, you
can assign the start and stop frequencies, select the resolution bandwidth, and set
the sweep time.
Before UE, the LTE-Advanced FDD/TDD standards gave the test specification
requirements for BS intra-band contiguous aggregation and intra-band non-
contiguous aggregation modes. However, for UE, only the requirements of intra-
band contiguous aggregation modes are defined. So, the standards don’t support
making the measurement in UE intra-band non-contiguous aggregation mode for
LTE-Advanced FDD/TDD. As a result, the preset values of Inner Offset/Limits are
temporarily set as those of Outer Offset/Limits for UE.
Limits for Inner Offsets
Since inner offsets are defined from the sub-block edges to the gap, limits from two
sub-blocks overlap each other. Therefore, the limit used for inner offsets are the
cumulative sum of limits from both sub-blocks. Offsets can have different RBWs,
which must be compensated when accumulated.
For example, when offset A and D overlap, the limit of offset A is calculated as
follows.
Th
e diagram below depicts what inner offset limits look like.
1098 Short Range Comms & IoT Mode User's &Programmer's Reference
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