Product manual

Configuration directions, Base station planning
Technical Product Manual - DCT1800-GAP
TD 92093 (1/LZBNB 103 108 R4D) / 2006-03-09/ Ver.C
© 2006
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Fig. 4 Measurement of typical cell size
Making a plan
Once the ‘typical cell size’ is found, do the following:
1. Make a sketch of all base station positions on the ground plan.
2. Indicate the expected coverage for each base station on the map.
3. Verify with the site survey tool if the real coverage is as expected from the map.
4. Especially verify coverage in difficult areas such as elevators, stair houses and discontinuity in
construction.
5. If weak areas are found, try if re-positioning base stations solves it, otherwise plan an extra base.
In an environment with much reflections (such as most office environments) there will not be much
difference in coverage of the BS330 and BS340 base station. Some areas that are covered by the
BS330 base station will not be covered by BS340 base stations and vice versa.
In an environment with low reflections the somewhat directional behaviour (forward bias) of the BS330
base station will be noticeable, see figure
5. It may be worth trying to place base stations in the upright
position in order to get more vertical coverage in e.g. stair wells.
40 metres
3.5 metres
2
3
Base station of
site survey tool
=
1
1= 40 metres
2= 20 metres
3= 20 metres
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