Table of Contents
Advertisement
C
P
ORDLESS
HONE
3
3.1
3.2
3.2.1
3.2.2
10
Base station planning
General
A major task when planning a cordless phone system is to define the
number of base stations required to cover an area to a satisfactory level.
This section describes how base station planning can be made in order
to gain full area coverage. The section Traffic capacity explains how
traffic requirements additionally influence the number of base stations.
Another aspect of the base station configuration is the power supply
which is explained in detail in the installation instructions for CORDLESS
PHONE.
Coverage areas
The radio cell
The area covered by a base station is not of a spherical shape as often
suggested in pictures. If a snapshot could be taken of its form, it would
become clear that its shape is much more irregular. The momentary size
and shape are dependent on the material of which walls and floor are
made, the position and material of furniture, machines, air-conditioning
and the position of the base station in such an environment. Because of
these unpredictable conditions it is not possible to give any hard rules on
calculating the number of base stations in a given situation.
It is not to say that base station planning is very difficult, on the contrary,
but size, architecture and structure of buildings and their influence on the
field pattern cannot be foreseen. The quickest and simplest way is there-
fore measuring. During a so-called site survey, an average cell size can
be determined, with help of a site survey tool, see chapter 3.9.1 Site
survey tool on page 22. This forms the basis of a base station plan.
The guidelines listed below will help getting a better understanding of the
local situation when base stations are being planned. See chapter 3.9
Site survey on page 21 how a site survey can be done.
Location area
A location area is the domain in which a portable may receive and/or
make calls as a result of a single location registration. In the MX-ONE
cordless phone system it is the area covered by one or more base
5/1531-ANF 901 14 Uen D3 2013-11-28
Advertisement
Table of Contents
