Overview Of Field Upgrade; Gsm To Gsm/Edge Upgrade; Working Order For Gsm/Edge Upgrade - Nokia MetroSite Field Upgrade Manual

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1

Overview of field upgrade

This document provides instructions for upgrading an existing Nokia MetroSite
BTS installation. Field upgrades are done for the following reasons:
•
•
This chapter describes the upgrade options in more detail and the working order
for the upgrade procedures.
1.1

GSM to GSM/EDGE upgrade

A GSM MetroSite BTS installation is upgraded to EDGE transmission by
replacing the GSM TRX units with 5W GSM/EDGE TRXs or by adding 5W
GSM/EDGE TRXs to any spare TRX slots in the BTS.
A software upgrade to CX 3.0 or later is also required for upgrade to EDGE. This
is done locally at the BTS during commissioning with Nokia BTS Manager.
Note
With the 5W GSM/EDGE TRXs, MetroSite can operate with either GSM or
EDGE transmission.
If the MetroSite BTS still contains 1W TRXs, a higher capacity cooling fan and
a different power supply unit must also be fitted to the BTS when the TRXs are
upgraded to 5W GSM/EDGE TRXs.
1.1.1

Working order for GSM/EDGE upgrade

The procedures to be completed and the working order in which they are done are
presented below.
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Issue 2-0 en Nokia Proprietary and Confidential
Upgrade of TRXs from GSM to GSM/EDGE transmission (including
upgrade from 1W TRXs, if relevant).
Upgrade of BTS capacity by chaining to include up to 12 TRXs.
Draft
Overview of field upgrade
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