User's Manual

Figure 65: Locating redundant cells
Cell re-engineering for high traffic areas
To accommodate the demand in high traffic areas, follow the The cell re-engineering
process on page
107.
Traffic volume
The deployment process ensures coverage throughout the service area. It does not, however
,
take into account the effect of traffic. In a high traffic area, a shortage of radio channels at the
basestation can cause calls to be blocked.
Two options are available to support the volume of telephone calls in cells that carry heavy
traffic:
• increase the number of cells deployed
• use 12-channel basestations
The calculation of expected telephone traffic includes an allowance for the user population in
a cell, and the roaming user.
About the 12-channel basestation
An optional 12-channel basestation must be used where telephone traf
fic levels exceed those
that can be carried on the standard 6-channel basestation. The radio performance of the 12-
channel unit is the same as that of the 6-channel unit so the cell sizes are the same for both
units.
Site planning
106 DMC DECT Fundamentals August 2012
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