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136 CHAPTER 6: USING RF PLANNING
Assign Channel
Settings
After identifying the MAP access points required for a coverage area, you
need to assign channels to the MAP access points.
Appropriate assignment of channels across the floor minimizes
co-channel interference. The channel assignment algorithm assigns
non-overlapping channels to neighboring APs from the selected channel
set.
Choose the starting floor and the ending floor (in the downward
direction) for multi-floor channel assignment. The algorithm takes
predicted RSSI values between neighboring MAPs (including MAPs on
different floors and 3rd party APs) and minimizes same-channel
assignments between APs. You can specify cross-floor attenuation and
the 802.11 technology on which you want to perform the channel
assignment. 3WXM uses predicted RSSI values for the imaginary “ray”
that is drawn between two MAPs. Consequently, you may see
unexpected results if the exact path between the MAPs has many
obstacles, but the areas around that path are relatively open. You can
make further manual adjustments, if necessary.
To assign channels:
1 The Organizer panel is displayed on the left. Expand Sites, right-click on a
building, and select Edit.
The Modify Building wizard is displayed.
2 Select the Plan RF Coverage tab; then click Assign Channels to MAPs.
The Channel Assignment wizard appears, showing the current channel
assignment constraints.