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1xEV-DO Signaling
R&S
®
CMW-KM8xx/-KS8xx
40
User Manual 1173.9511.02 ─ 12
For physical layer subtype 0/1, a fixed physical packet size of 1024 bits is used. Physi-
cal layer subtypes 2 and 3 allow packet sizes between 128 and 8192 bits.
The R&S
CMW currently does not support 16- and 64-QAM modulations. Hence
"large" physical packet sizes > 5120 bits won't show up here.
MAC Packets Received
Number of correctly received MAC layer packets in the physical layer packets contain-
ing the FTAP/FETAP/FMCTAP test packets. A physical layer packet contains 1, 2, 3,
or 4 MAC layer packets.
Physical Packet Slots
Number of slots over which the physical packets containing the FTAP/FETAP/
FMCTAP test packets were received.
Throughput vs. Test Time
The "Forward Link Performance" is the data rate (in kbit/s) of the FTAP/FETAP/
FMCTAP MAC layer packets transmitted on the forward traffic channel that the AT
could receive successfully:
ᅟ
FL_TP / Time [kbit/s] = MACPktRecd * PktSize / (TestTime * 16*5/3)
"MACPktRecd" denotes the number of successfully received MAC layer packets
("MAC Packets Received"), "PktSize" the "Physical Packet Size" in bits, "Test Time"
FTAP test time in frames. The statistics for MACPktRecd and TestTime is maintained
by the R&S
CMW.
The factor 16*5/3 corresponds to the CDMA frame duration in ms. If a physical layer
subtype 2 or 3 is active, the R&S
CMW can collect throughput results for different
physical packet sizes; the total throughput is then calculated as the sum of the through-
put results for all packet sizes.
Throughput vs. Transmitted Slots
The "Throughput vs. Transmitted Slots" is the data rate (in kbit/s) of the FTAP/FETAP
MAC layer packets transmitted on the forward traffic channel that the AT could receive
successfully:
ᅟ
F_TP / Slots = MACPktRecd * PktSize / (PktSlots * 5/3)
"MACPktRecd" denotes the number of successfully received MAC layer packets,
"PktSize" the "Physical Packet Size" in bits, "PktSlots" the number of slots during which
the packets were received ("Physical Packet Slots"). The statistics for MACPktRecd
and PktSlots is maintained by the R&S
CMW.
The factor 5/3 corresponds to the CDMA slot duration in ms. If a physical layer subtype
2 or 3 is active, the R&S
CMW can collect throughput results for different physical
packet sizes; the total throughput is then calculated as the sum of the throughput
results for all packet sizes.
General Description
深圳德标仪器
135-1095-0799