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1xEV-DO Signaling
R&S
®
CMW-KG8xx/-KM8xx/-KS8xx
39
User Manual 1173.9511.02 ─ 11
2.2.14.5
Forward Link Throughput Measurement
The R&S
CMW can perform several forward link "RX Throughput" measurements in
parallel.
Carrier Selection
When performing multi-carrier measurements (revision B, option R&S CMW-KS881)
the R&S
CMW collects data for every individual carrier. The carrier whose results shall
be displayed can be selected/changed at any time. Its number is displayed in the top
right corner of the "RX measurement" dialog.
Aggregate results per carrier (e.g. over all possible data rates or packet sizes) are pre-
fixed by the word "total"; aggregates over all carriers are prefixed by the word "compo-
site". Limit checking can be performed either per carrier or over all carriers.
The "Forward Link Performance" measurements determines the throughput at MAC
level. To this end, the FTAP/FETAP/FMCTAP test packets are sent in Forced Single
Encapsulation mode, i.e. one test packet per physical layer packet. Depending on the
FxTAP configuration, each physical layer packet occupies a different number of slots
and contains between 1 and 4 MAC layer packets.
The R&S
CMW collects the information about successfully received packets as con-
veyed in the AT's loopback packets and calculates the required statistics.
For multi-carrier tests (revision B, physical layer subtype 3) throughput statistics are
collected and displayed both for the individual carriers and for all active carriers (row
"Composite").
General Description
深圳德标仪器
135-1095-0799