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1xEV-DO Signaling
R&S
®
CMW-KM8xx/-KS8xx
35
User Manual 1173.9511.02 ─ 12
Checks in case of failed FL PER tests
If forward link PER measurements yield excess error rates, check the FTAP/FETAP/
FMCTAP "ACK Channel" setting that can be performed under
●
●
●
on page 80 for revision B
"Not Used" is recommended for PER tests.
Data RX measurement procedure
1. Set up an end-to-end data connection as described in
2. Use the "1xEV-DO <i> RX Meas" shortcut softkey to call the measurement applica-
tion
3. Activate the "Data" tab and start the measurement.
4. Wait until the R&S
CMW has sent/received sufficient packet data and read the
results from the appropriate views.
2.2.14.2
Forward Link Packet Error Rate Measurement
The R&S
CMW can perform several forward link PER measurements in parallel.
Forward Link PER is the percentage of test packets transmitted on the forward traffic
channel that the AT failed to receive successfully.
While the forward test application is running, the R&S
CMW transmits FTAP/FETAP/
FMCTAP test packets, filled with PRBS data. The AT demodulates the packets and
reports reception in dedicated loop back packets.
For multi-carrier tests (revision B, physical layer subtype 3) PER statistics are collected
and displayed both for the individual carriers and for all active carriers (column "Com-
posite").
Fig. 2-5: Display of forward link PER results (multi-carrier)
General Description
深圳德标仪器
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