User guide

TD 92422GB
18 February 2010 / Ver. E
System Planning
Ascom IP-DECT System
26
10 Making a Base Station Plan
1 Make a sketch of all base station positions for each floor of the buildings.
2 Indicate the expected speech coverage and in case of a IPBS system also the air sync
coverage for each base station on the map.
3 It is strongly recommended that each IPBS is able to synchronize with at least two
other base stations.
4 Especially verify coverage in difficult areas such as lifts, 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 station or consider defining a new sync region, see
7.2 Considerations
for Air Synchronization at a Multiple Building Site on page 14.
6 Select which IPBSs should be assigned the role as air sync Masters. The Masters
should ideally be centrally located since it will minimize the synchronization hops.
7 A location area is an IPBS or a group of RFPs connected to an IPBL. The IPBL with
RFPs case is illustrated in
figure 13 and figure 14; to minimize roaming between
IPBLs, RFPs from same IPBL should be geographically grouped next to each other.