Nortel Meridian Companion Reference Manual page 80

Page 74 of 102 Planning complex sites
Low portable count/high cell count problem
Solution
553-3601-106 Standard 2.00 September 1996
• all three systems use different system names
• three systems is the smallest number of systems required to serve the site
• most users work within the area of only one of the cells
• the cells of each system are grouped together on the floor plan
Amusement Park consists of an office complex and ten pavilions. There are 60
customer relations, security and maintenance personnel. These employees
spend most of their time moving about the park and spend little time in the
office complex; however, they must be in contact with the office personnel.
The sales group recommends a Companion (C200) system.
You survey the site. You use the CDT set at -73 dBm in all the pavilions. You
assure coverage in the office complex at -70 dBm. As a result, you calculate a
need for 177 cells. You do the traffic calculations with most of the personnel
being in the pavilions. You determine that the park needs 187 Base Stations.
Using the appropriate table in your Companion installation documentation,
you find that one Companion system cannot serve 177 cells with 187 Base
Stations and 60 portables. You require a minimum of two systems where
• system 1 covers 90 cells, 1C1 through 1C90, with 60 registered users
and 96 Base Stations
• system 2 covers 87 cells, 1C91 through 2C177, with 60 registered users
and 91 Base Stations
All of the users can go anywhere in the office complex or the pavilions because
the installer registers all of the users to both systems.
Figure 33 shows the coverage for a site with a small number of portables and
a large number of cells.