Troubleshooting; Testing The Bts - Nokia MetroSite Maintenance Manual

5

Troubleshooting

This chapter gives advice on how to identify and rectify possible faults in the
operation of the Nokia MetroSite EDGE Base Station.
Note
Troubleshooting instructions related to BTS commissioning are given in Nokia
MetroSite EDGE Base Station: Commissioning.
Note
Detailed descriptions of BTS alarms are presented in Nokia MetroSite EDGE
Base Station: Alarm Descriptions. Descriptions of the LED unit status indicators
are presented in Chapter 7 of this document.
Whenever problems occur in the operation of the BTS, connect the Nokia BTS
Manager PC to the interface unit. The LED conditions and the alarm window
usually indicate where and what the problem is. To obtain more information on
the BTS's status, it is also advisable to be in contact with the BSC by mobile
phone (MS).
5.1

Testing the BTS

If there is any reason to assume that the quality of calls in a cell is degraded, or
that the number of calls in a cell is reduced, the Abis loop test and the TRX test
can be run remotely from the BSC/NMS. A TRX test can also be run locally with
Nokia BTS Manager.
Further troubleshooting tests can also be done locally at the BTS. See the
Troubleshooting checklist in Section 5.2 of this document and the LED indicator
conditions reference information in Chapter 7 of this document.
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