Tsunami QB-8100 Series (100 Mbps/5 Mbps Models) Installation and Management Guide 63
DDRS Max Data Rate This parameter specifies the maximum data rate that is
selected during DDRS Algorithm. By default, 130Mbps
is selected.
NOTE: Algorithm will select the transmission
rate between DDRS Default Data Rate
and DDRS Max Data Rate configuration.
Rate Incr. Avg. SNR Threshold This parameter specifies a threshold value, which is
added to the average remote SNR and this summation
is compared with the current remote SNR. If the
current remote SNR is greater than this summation,
then the same rate is maintained. If the current remote
SNR is smaller than or equal to this summation, then
new rate is selected. By default, 4dB is configured.
Rate Incr. Req. SNR Threshold This parameter specifies the threshold value, that is
added to the minimum required SNR threshold of next
higher data rate and this summation is compared with
average remote SNR. If the average remote SNR is
greater than or equal to the summation, then new
data rate is selected. By default, 3dB is configured.
NOTE: Refer to Table 4-1 and 4-2 for Minimum
Required SNR for different data rates.
These values are NOT user configurable.
Rate Decr. Req. SNR Threshold This parameter specifies the threshold value, that is
added to the minimum required SNR threshold of
current data rate and this summation is compared with
average remote SNR. If the average remote SNR is
lower than the summation, then next lower data rate is
selected. By default, 3dB is configured.
NOTE: Refer to Table 4-1 and 4-2 for Minimum
Required SNR for different data rates.
These values are NOT user configurable.
Rate Incr. Re-Tx% Threshold This parameter specifies the percentage of
re-transmission for last 128 transmissions. If the
re-transmission percentage for last 128 transmissions is
greater than Rate Incr. Re-Tx% Threshold value, then
the current transmission rate is maintained. By default
2% is configured.
Rate Decr. Re-Tx% Threshold This parameter specifies the percentage of
re-transmission for last 128 transmissions. If the
re-transmission percentage for last 128 transmission is
greater than Rate Decr. Re-Tx% Threshold value, then
the next lower transmission rate is selected. By default
10% is configured.
Parameter Description
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