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Taking measurements
Measuring the wireless range of the planned base stations
Take two different measurements.
§§1§§
Measure the connection quality between the measuring handset and measuring base
station in their wireless cells to ensure that sufficient voice quality is guaranteed at eve-
ry position in the required coverage area. Taking the same measurement for the neigh-
bouring station produces the overlap zone required for a handover.
§§2§§
Measure the strength of the signal from the measuring base station that you receive at
the planned position of the neighbouring base station to ensure sufficient synchroni-
sation overlap.
Measurement sequence
The sequence in which you measure the wireless range of the planned base stations
depends on the size of your DECT network and your assumptions with regard to the exist-
ing "problem areas". As a rule of thumb, first measure the base stations whose positions
have the least leeway.
Take the following aspects into consideration:
u
Assumed problem areas
For base stations that are to cover specific problem areas, e.g., a stairwell or entrance
area, there are often few alternative positioning options. In this case, measure these
base stations first because the positioning of all other base stations depends on these
initial positions.
u
For large installations
The more base stations you use, the higher the requirements of the synchronisation
hierarchy (
). In this case, we recommend starting with the base station for
which a subsequent change would mean the greatest effort. This is usually the base
station with sync level 1. Start here and move outwards from sync level to sync level.
u
For small installations
Here it makes sense to start with the base station where the highest call traffic is to be
expected, e.g., base stations in hotspots or other high-traffic areas. Once the coverage
of these areas is ensured by measurement, check the positioning of the other base sta-
tions.
VoIPon www.voipon.co.uk [email protected] Tel: +44 (0)1245 808195 Fax: +44 (0)1245 808299
