Registering individual portables / 85

Measuring directed RSSI

You may want to measure the RSSI between a portable and a specific base station radio. For example, you may suspect that one of the two radios in a base station is not working properly. You can also use directed RSSI to prevent hand-off while you find a cell edge. To measure the RSSI of a specific radio, you must be in range of two base stations—the one you want to measure and another base station.

You cannot measure the directed RSSI of both radios in the base station at the same time.

Before you begin to measure directed RSSI

Use the Companion Provisioning Record to find the following:

the five-digit ID of the base station radio you want to measure, by mapping the base station location to the time compression multiplex (TCM) port. The first four digits indicate the TCM port to which the base station is connected. The last digit indicates the number of the radio on the base station. For example, the number 03142 on the base station is connected to TCM port 0314, and 2 is the radio number. The number may be printed on a label affixed to the lower right corner of the base station mounting bracket.

the radio IDs of all other base stations in the same location.

To measure directed RSSI using your portable

1.Repeat steps 1 to 3 of To measure undirected RSSI on page 84.

2.When the portable displays the base station ID you want to

measure, move out of the cell boundary range so that hand- off occurs, and press ´ or e.

P0992639 01

Modular ICS Companion Installer Guide

Page 91
Image 91
Nortel Networks P0992639 01 manual Use the Companion Provisioning Record to find the following