Setting up the Base Stations
29
Procedure
1.
You can do the following:
l
Select
ON
or
OFF
to activate or deactivate the base station.
Note
: Please ensure that the base station you want to deactivate is not with sync level 1. Check your sync set-
tings before deactivating the base station. Otherwise, your system may no longer work properly.
l
Click
, and enter a descriptive name, assign the cluster, and set the sync level for the base station.
l
Click
and select
OK
to reboot the base station.
All existing connections managed by the base station are terminated.
l
Click
and select
OK
to delete the base station.
l
Click
Reboot All
to reboot all connected base stations.
Base Station Synchronization
Base station synchronization is the prerequisite for the functioning of the multi-cell system, inter-cell handover, and
overload balancing. Overload balancing means that a handset can roam to another available base when the cur-
rent base is fully loaded and cannot accept further handset connections.
Base stations can be synchronized "over the air", meaning that they are synchronized via DECT.
Note
: Synchronization always refers to a cluster. In case you set up several clusters that are not synchronized with one
another, these will be no possibility of a handover or overload balancing between them.
Topic
Synchronization Planning
Base stations in the multi-cell system must synchronize with one another to ensure a smooth transition of the hand-
sets from cell to cell (handover). No handover and no overload balancing are possible between cells that are not
synchronized.
The synchronization within a cluster takes place in a master/slave procedure. It means that one base station (sync
master) defines the synchronization cycle for one or more additional base stations (sync slaves). A base station can
synchronize with each base station on a higher sync level. The sync level concept allows base stations to auto-
matically select the best suitable base station (having a lower sync level number) to receive synchronization signal
from.
During configuration, assign one sync level to each base. Sync level 1 is the highest level, which is the level of the
sync master and appears only once in each cluster. A base station always synchronizes itself with a base station
that has a better sync level. If it sees several base stations with a better sync level, it synchronizes itself with the
base station that provides the best signal quality. If it does not see any base station with a higher sync level, it can-
not synchronize.
To ensure the synchronization, you should plan the level 1 base station in the center as much as possible, and
place the next sync level's base stations around the center.
The following is an example of a synchronization scenario:
