Nortel Meridian Companion Reference Manual page 36

Page 30 of 102 Site planning basics
Locating cell boundaries
553-3601-106 Standard 2.00 September 1996
Mark a small x on the floor plan where you reach cell boundary values.
4.
Draw a thin contour line through the x's.
5. Select another nearby critical point and repeat steps 1 to 4.
Note: The intersection of the contour lines is a potential cell center.
6. Choose a position on the floor plan for the cell center that
— is farthest from the critical points and is still within range
— complies with the Base Station installation guidelines
— is in the coverage area
Label the cell center on the floor plan with xCn, where x is the floor and
7.
n is the cell number in sequence of the entire plan.
1. Set up the CDT transceiver at the cell center and establish a link.
2. Check the floor plan for possible users' offices within the cell.
If the entire area is office area, use -70 dBm as the cell boundary value.
If there are no, or only a few, users' offices, use -73 dBm as the cell
boundary value.
3. Find the cell boundary position by measuring the range and recording it
on the floor plan with a small x.
4. Move back toward the CDT transceiver until the tone from the portable
changes from intermittent beeps to a continuous tone.
Note 1: Walk into all of the areas (rooms) necessary to determine the
complete cell boundary. Radio signals travel farther in uncluttered
areas than they do in cluttered areas.
Note 2: Repeat steps 3 and 4 until you make enough x's to draw a contour
line around the cell center (12 x's for a full 360 around a cell center
are enough).
5. If you chose a cell boundary value of -73 dBm and a user's office is
within the cell, confirm that the office is within -70 dBm of the cell
center. Reset the CDT to -70 dBm and find the cell boundary in the
office area. If any of these users' offices are not within -70 dBm of the
cell center, consider these users' offices as outside the cell.