3com 3CRWX440095A Manual Do Utilizador

C

HAPTER

 6: U

SING

 RF P

LANNING

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.