WCDMA Multi Evaluation Measurement
R&S
®
CMW-KG4xx/-KM4xx/-KS4xx
579
User Manual 1173.9657.02 ─ 11
Fig. 3-20: WCDMA multi evaluation: ACLR
The method of measurement ensures that the results correspond to the ACLR speci-
fied in 3GPP TS 34.121 where a WCDMA channel filter is used. According to the spec-
ification, ACLR tests must be carried out at maximum output power of the UE.
The central bar shows the power at the nominal carrier frequency (UL Frequency); the
bars ±1 correspond to the 1
st
adjacent channels (±5 MHz from the UL frequency) and
the 2
nd
adjacent channels (±10 MHz from the UL frequency). Either the "Current",
"Average" or "Maximum" values can be displayed in the bar graph. The table below the
bar graph provides all these values.
The adjacent channel powers can be displayed as relative power levels (dB) refer-
enced to the carrier power or as absolute power levels (dBm). The absolute power lev-
els are derived from the relative power levels via a conversion procedure. For current
values the conversion is based on the current carrier power. For average and maxi-
mum values it is based on the average carrier power.
For additional information refer to
chapter 3.2.6.13, "Common View Elements"
3.2.6.9
Detailed Views: Spectrum Emission Mask
The spectrum emission of the UE is measured in the "Preselected Slot". The results
are displayed in a diagram and as a table of statistical results.
General Description
深圳德标仪器
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