Planning Where There Is An Existing Companion System; Adjacent Systems; Overlapping Systems - Nortel Meridian Companion Reference Manual

Page 66 of 102 Planning complex sites

Planning where there is an existing Companion system

Adjacent systems

Overlapping systems

553-3601-106 Standard 2.00 September 1996
If you are planning a system beside another system, note whether the
following are valid:
• there is no common coverage area between the two systems
• there is little possibility that a user from one system will want service
from the coverage area of the other system
If these points are valid, you can plan the sites independently of each other, but
you must keep the cell centers between the two systems at least 23 ft (7 m)
apart.
Two or more systems that have cells that serve a common area, as shown in
Figure 31, are overlapping systems.
Note: Avoid overlapping one system with another whenever possible.
Figure 31 : Overlapping systems
system 1
Different systems covering the same area prevent links from being established,
degrade voice quality, induce long mutes, and drop calls for all systems
involved. This situation progressively degenerates as the number of links
between the systems increases.
Keep the Base Stations between these systems at least 23 ft (7 m) apart. This
distance decreases the number of occurrences of poor voice quality and long
mutes, but does not eliminate them. The customer may complain of poor
quality service.
system 2