ViaSat MEOLink User Manual page 34

Field
AUPC Properties
Attenuation Range
Update Interval
Utilization Threshold (low)
Utilization Threshold (high)
3‐26
2. From the Configuration tab, select Sites and set the fields below:
a. AUPC Operation: Select Enable to enable AUPC for this site. AUPC can be
independently enabled or disabled for each of the sites.
b. AUPC Es/No Margin and AUPC Es/No Hysteresis: These two values should
be added together and considered as one "margin" which is used in two
different places when considering reducing the power level.
i. Because AUPC does not want to transmit at a needlessly high
power level, it checks to see if all sites have at least this much SNR
margin above the highest ModCod. If so, it reduces the transmit
power level.
ii. When utilization is low, it makes sure that all sites have at least
this much SNR margin above the lowest ModCod. If so, it can
safely reduce the power.
Figure 30: AUPC Configuration Screen
Table 7: AUPC Algorithm Configuration Parameters
Definition/Configuration
Maximum amount that AUPC can reduce the transmit power for its
configured value. Default is 20 dB; range is 0 to 20 dB (in 0.01 dB
steps).
How often AUPC will evaluate link and utilization conditions and
potentially make power adjustments. Default is 2 sec; range is .2 to 60
sec. Recommended to operate at ~4x the ACM interval.
When link utilization falls below this threshold, AUPC will consider
dropping the transmit power level. Default is 30%; range is 1% to 100%
When link utilization rises above this threshold, AUPC will consider
increasing the transmit power level. Default is 50%; range is 1% to
MEOLink User Manual
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