ASCOM Ascotel 2025, System Manual

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ascom Ascotel 2025/2045/2065
3.54 Planning DECT Systems HBT_20321104_03/B0_en
5.4.3.4 Location Areas
With incoming calls each handset is called by the system simultaneously via all the
radio units of the location area in which the handset is logged on. If a handset
switches from the coverage range of one location to that of another, the handset
will log into the new area from scratch. The logon procedure is automatic and
does not affect the use of the handset. To prevent handsets from constantly log-
ging themselves on in locations areas, plan the overlap areas of location areas in
such a way that handsets are not permanently located there.
Distributing the radio units over several location areas ensures that the radio traf-
fic involved in locating handsets for incoming calls is distributed across the loca-
tion areas. This means that overall more calls can be processed simultaneously.
The optimum number of location areas depends on the number of handsets in
the system and the traffic density (see Page 3.56). The diagram below shows the
minimum number of location areas to be created out of the maximum of four
areas.
Fig. 3.24: Minimum number of location areas for different traffic densities
1
30
60
90
120
2 3 4
low
medium
high
Number of handsets in the system
Minimum number of location areas
Traffic density
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