R&S CMW-KM5 Series, Руководство пользователя

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LTE Multi Evaluation Measurement
R&S
®
CMW-KM5xx/-KS5xx
522 User Manual 1173.9628.02 ─ 16
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chapter 3.5.3.17, "Magnitude Error Results (Traces)" , on page 657
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chapter 3.5.3.18, "Phase Error Results (Traces)" , on page 657
3.2.6.3 Detailed Views: Inband Emissions
The inband emissions are displayed in one diagram per component carrier and as a
table of statistical results.
Fig. 3-25: LTE Multi Evaluation: Inband Emissions
For measurements without carrier aggregation, only the PCC is measured and a single
diagram is displayed. For measurements with carrier aggregation, the PCC and the
SCC are measured and the results are displayed in two diagrams.
Each diagram shows the average power in all resource blocks (RBs) of the measured
slot. This corresponds to a power vs. frequency representation where every RB com-
prises 12 subcarriers. The RB powers are normalized to the current RB Power.
The figure shows a measurement with carrier aggregation. In the PCC diagram, 36 out
of 100 resource blocks are allocated. The power of the remaining, non-allocated blocks
must be below the red limit line. For the SCC, no resource blocks are allocated. So the
entire trace must be below the red limit line.
The carrier currently selected as "Measurement Carrier" is marked by the string "(Allo-
cated)". It must contain allocated resource blocks. Otherwise the measurement fails
("Underdriven" or "Sync Error").
The inband emissions are calculated from the I/Q origin offset-corrected signal, see
chapter 3.2.1.7, "Calculation of Modulation Results" , on page 497.
General Description
深圳德标仪器
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