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WCDMA Signaling
R&S
®
CMW-KG4xx/-KM4xx/-KS4xx
243
User Manual 1173.9657.02 ─ 11
Blocks" settings. Use this value for measurements that are essentially intended for
checking limits, e.g. production tests.
Remote command:
Transport Blocks
Defines the number of transport blocks to be measured per measurement cycle (statis-
tics cycle). The number of transport blocks sent can be larger than the specified value
because transport blocks may be lost on the way to the UE and back.
See also: "Statistical Results" in the R&S
CMW user manual, chapter "System Over-
view"
Remote command:
PN Resync
Activates a correction mechanism for the order of looped back transports blocks. The
setting is relevant in the case that the UE eliminates or reorders some of the received
blocks carrying an irregular bit pattern, in particular a PN sequence (PRBS). The main
purpose of the setting is to check whether a high BER actually results from a reorder-
ing of blocks by the UE.
●
ON
: The R&S
CMW checks the BER within each individual received block and cor-
rects its PN phase and its position in the block sequence, if necessary. The BER
measurement result is based on the bit stream of the corrected block sequence. It
can be zero although the UE has eliminated or reordered some blocks. The num-
ber of corrected blocks is displayed as measurement result "PN Discontinuity".
●
Off
: The received block sequence is not corrected. No "PN Discontinuity" result is
provided.
Remote command:
2.4.22.4
Limit Settings
The "Limit" section defines upper limits for the results of the "BER" measurement.
3GPP TS 34.121 specifies a variety of test cases related to these results, especially to
BER, BLER and FDR. A maximum BER of 0.1% is required for most test cases.
Fig. 2-120: Limit settings
GUI Reference
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