R&S
®
CMW 500 WCDMA Applications
WCDMA TX Measurements
Operating Manual 1202.3986.32 – 03 304
The "Preappointed Slot" and the "Slot Number (Table)" are completely independent
from each other. See "WCDMA Multi Evaluation: Results" on page 304.
WCDMA frame synchronization
The trigger settings (see below) ensure WCDMA slot and frame synchronization with
the analyzed UL WCDMA signal. The "Measurement Length" can start with any
WCDMA slot number, depending on the "Synchronization" setting.
9.1.1.4 Trigger Modes
The WCDMA "Multi Evaluation" measurement is triggered by the analyzer RF signal.
The R&S CMW 500 decodes the signal to derive its slot and frame timing so that the
"Measurement Length" can start at a frame boundary of the UL WCDMA signal or at
any selected slot within the frame (see "Synchronization"). The "Trigger
Source" settings determine how often the R&S CMW 500 repeats slot and frame
synchronization, if the measurement extends over more than one measurement cycle.
9.1.1.5 WCDMA Multi Evaluation: Results
The results of the WCDMA multi-evaluation measurement are displayed in several
different views. Use the "Display" parameters to select the views and to change the
appearance and contents of the views.
Below the title bar, all views show the most important RF and analyzer settings; see
Signal Routing and Analyzer Settings.
Overview
In the overview dialog, up to six diagrams display the Error Vector Magnitude (EVM),
Magnitude Error, Phase Error (left side), and the ACLR, Spectrum Emission Mask, and
CDP vs. Slot results.
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