Table of Contents
Advertisement
In a normal office this will not be a problem, as the coverage area of a Base Station
and the number of square metres per employee normally secures the necessary
overlap.
Coverage without overlap
– traffic capacity 1E, cor-
responding to 6 DECT
subscribers
If the building is a multi-storey building with an even distribution of employees, this
rule is sufficient as the physical coverage of the Base Stations secures the necessary
overlap.
If the building is a warehouse with a large spread of employees, the Repeater can be
used to establish the necessary radio coverage, but problems with traffic capacity
may arise.
The traffic capacity in the Repeater area is only 0.15E, which does not mean that
there can only be one active handset in the area. The Repeater can handle two traffic
channels and therefore two simultaneous calls and the probability that the Repeater
is busy with traffic for two handsets (0.15 + 0.15 = 0.3E) is more than 1% (actually
3%) and therefore there will be no even distribution of traffic.
Part 1: Site Survey and Overview of DECT Systems
Figure 1.7
Figure 1.8
Office with 20 DECT
subscribers
DECT overlap – traffic capacity
3E, corresponding to 20 DECT
subscribers
Repeater coverage
– traffic capacity
0.15E
20
Advertisement
Table of Contents
