User's Manual

Infrastructure Requirements and Layout Planning
10 Voasis™ UMTS/DCS/PCS Installation and Configuration Manual
3.3.1.4 Combination of Environments
In areas with combinations of environments of various densities, place the VAPs on the border
between the different types of areas – closer to the denser area.
For example in a cubical area with the outside wall having offices, simply locate the VAPs a little
closer to the outside offices to provide coverage through the office walls. (See VAPs 11 and 13 in
the floor plan map in section
3.4.3.)
To ensure a maximal coverage, VAPs can be moved or added. If a coverage gap is detected, the
VAPs can be re-placed until the coverage gaps are filled.
3.4 Planning VAP Layout
The following section describes the steps of planning the VAPs along the covered floor. At the
End of this section an example of a planning map is attached.
Note: It is highly recommended to use a floor plan when planning the VAPs locations.
3.4.1 Interference Factors
It is important to note the type of factors that can severely impact RF coverage which should be
avoided:
• Metallic structures like elevators, tall file cabinets and some moveable metallic partitions
severely degrade RF signal and all efforts should be made to locate VAPs in front of or above
metallic objects (desks, filing cabinets) to allow the signal to propagate.
• Wall materials such as concrete, tile and cinderblock along with bathroom fixtures typically
have fairly high signal attenuation and should be considered dense spaces.
• Some glass (typically exterior or mirrored) has metallic coatings on it which can affect RF
coverage however that is typically not encountered inside a building.
3.4.2 Mapping Locations
To map the VAP Locations
1. Map out the available locations: mark all the CAT-5/6 drops that are not in use locations on
the floor plan map.
TIP: It may be handy to use the size and number of the ceiling tiles to measure distances.
2. Using the floor plan and the VAPs coverage guidelines (as given in 3.4.3) mark
approximately where you would like to place each VAP in the facility.
If you are not sure of how dense should the VAPs be laid out, you can either choose a more
dense installation or a less dense one and add more VAPs if needed after installation.