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1xEV-DO Signaling
R&S
®
CMW-KM8xx/-KS8xx
39
User Manual 1173.9511.02 ─ 12
2.2.14.5
Forward Link Throughput Measurement
The R&S
CMW can perform several forward link "RX Throughput" measurements in
parallel.
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").
Fig. 2-6: Display of forward link performance results (subtype 3)
Physical Packet Size
Size of the physical layer packets containing the FTAP/FETAP/FMCTAP test packets
(no. of bits). For numeric values the corresponding row displays the throughput for this
physical packet size on the pre-selected carrier; the "Total" row displays the sum of the
throughputs for all physical packet sizes on the pre-selected carrier; the "Composite"
row displays the sum of the throughputs for all physical packet sizes and all available
carriers.
General Description
深圳德标仪器
135-1095-0799