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Chapter 4 - Operation and Administration
Downlink Basic Rate
The Basic Rate for all downlinks.
The available options are listed in Table 4-3 on page 4-41.
The default rate is the lowest rate BPSK 1/2 (rate 1).
ATPC Parameters
BreezeMAX employs an Automatic Transmit Power Control (ATPC)
algorithm to dynamically adapt the transmit power of each SU so that it
will be received by the AU/µBST at an optimal level. The algorithm is
managed by the AU/µBST and optimal values are calculated separately
for each SU based on the actual level at which it is received by the
AU/µBST. MAP messages transmitted to the SUs include information on
the estimated up/down power level change required to achieve optimal
transmit power level.
Show
Select this option to view the current values/options of the ATPC
algorithm parameters.
Update
Select this option to update any of the ATPC parameters. The ATPC
parameters are:
ATPC Enable/Disable
The ATPC Enable/Disable parameters controls whether the ATPC
algorithm should be used to determine current optimal transmit level
for each SU served by the AU/µBST.
The default is Enable
NOTE
The ATPC algorithm should always be enabled. The option to disable it is available to
enable using a fixed rate to support certain test. After each reset the AU/µBST boots
with the ATPC enabled, disregarding its status before the device was reset.
Optimal Uplink RSSI
The Optimal Uplink RSSI sets the target level at which all transmissions
should be received by the AU/µBST for optimal performance.
The range is –103 to –60 (dBm).
The default is –69dBm.
4-42
BreezeMAX System Manual
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