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3. Locate the telephone type column in
4. Find the handset estimate range in
5. Determine if a cell requires division or uses a 12-channel basestation.
6. Repeat the preceding steps to determine the required number of cells that need
7. Transfer the results into the provisioning records.
Cell division requirements in special cases
This section describes how to determine cell division in the following special cases.
• where no office information is available.
• where a mix of handset users exist with and without wired telephones
No office information
If the location of the offices of users is not known, calculate the estimated number of handsets
for each cell using this formula.
The formula is based on the assumption that users are located evenly throughout the cells.
However, most users offices are clustered in specific areas of a building.
The formula has limitations as cells can vary in size. The method described starting
reengineering process
A mix of users with and without wired telephones in a cell
Use this procedure for mixed handset users. Telephone traffic generated by handset users
equates to that of handset and wired users. Combine the two groups for cell size
recalculation.
Table 15: Adjustment for users without wired telephones
Estimated number of handsets for users
without wired telephones
SIP DECT Fundamentals
table
on page 68.
In the example, H&W is the users with both a handset and a wired telephone.
In the example, 11.6 falls within the From 0 up to 20 category.
In the example From 0 up to 20, division is not required.
subdivision, except for telephone types M. For M see
wired telephones in a cell
on page 62 provides accurate cell division results.
0
1
2
Table 12: Example of a completed estimate
Table 14: Cell reengineering
on page 69.
Adjusted estimated number of handsets
for each cell
System deployment
on page 68.
A mix of users with and without
onThe cell
0
2
3
October 2012
69
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