User's Manual

Wireless Array
Configuring the Wireless Array 301
For an overview of RF power and cell size settings, please see “RF Power
& Sensitivity” on page 323, “Capacity and Cell Sizes” on page 32, and
“Fine Tuning Cell Sizes” on page 33.
6. Auto Cell Period (seconds): You may set up auto-configuration to run
periodically, readjusting optimal cell sizes for the current conditions.
Enter a number of seconds to specify how often auto-configuration will
run. If you select None, then auto-configuration of cell sizing will not be
run periodically. You do not need to run Auto Cell often unless there are a
lot of changes in the environment. If the RF environment is changing
often, running Auto Cell every twenty-four hours (86400 seconds) should
be sufficient). The default value is None.
7. Auto Cell Size Overlap (%): Enter the percentage of cell overlap that will
be allowed when the Array is determining automatic cell sizes. For 100%
overlap, the power is adjusted such that neighboring Arrays that hear
each other best will hear each other at -70dB. For 0% overlap, that number
is -90dB. The default value is 50%.
8. Auto Cell Min Cell Size: Use this setting if you wish to set the minimum
cell size that Auto Cell may assign. The values are Default, Large,
Medium, or Small.
9. Auto Cell Min Tx Power (dBm): Enter the minimum transmit power that
the Array can assign to a radio when adjusting automatic cell sizes. The
default value is 10.
10. Auto Cell Configuration: Click this button to instruct the Array to
determine and set the best cell size for each 802.11an IAP whose Cell Size
is auto on the IAP Settings window, based on changes in the
environment. This is the recommended method for setting cell size. You
may look at the Tx and Rx values on the IAP Settings window to view the
cell size settings that were applied.
11. Fragmentation Threshold: This is the maximum size for directed data
packets transmitted over the 802.11an radio. Larger frames fragment into
several packets, their maximum size defined by the value you enter here.