Ericsson Radio Systems AB PKRC1311004-1 Manual De Usuario
Diagnostics and Fault Handling
Description
When detecting a fault, the RBS automatically evaluates the fault
situation and indicates the suspected faulty RU. The fault status of the
RBS is updated with this information.
situation and indicates the suspected faulty RU. The fault status of the
RBS is updated with this information.
When a fault is pin-pointed to a specific RU this is visually indicated as
specified within the context of Operation and Maintenance Support.
specified within the context of Operation and Maintenance Support.
41.5
Local Action
Purpose
When a fault is detected for a SE it may be necessary to minimize the
effect of the fault. It is called a local action.
effect of the fault. It is called a local action.
Preconditions and initiation
The fault detection function has detected a fault for a SE.
Description
The impact of certain faults can sometimes be minimized by local
actions. This is done automatically by the RBS.
actions. This is done automatically by the RBS.
Permitted actions are:
•
Re-initiation
−
Certain faults can sometimes be cleared by re-initiating
the offending hardware. For example, if a
communication circuit behaves unexpectedly, it is
reinitiated. Note that re-initiation of an entire RU or a
processor is not allowed as a local action.
the offending hardware. For example, if a
communication circuit behaves unexpectedly, it is
reinitiated. Note that re-initiation of an entire RU or a
processor is not allowed as a local action.
•
Fault isolation
−
If a detected fault could cause equipment damage, the
equipment is isolated. For example, if a transmitter is
overheated, it is switched off.
equipment is isolated. For example, if a transmitter is
overheated, it is switched off.
•
Fault compensation
−
Certain faults can sometimes be compensated for
elsewhere in the RBS. For example, if a fan is faulty, the
speed of the other fans is increased.
elsewhere in the RBS. For example, if a fan is faulty, the
speed of the other fans is increased.
Supervision continues after performing a local action. If the fault
ceases, the local action is stopped.
ceases, the local action is stopped.
41.6
Fault Reporting
Purpose
This function reports MO faults to the BSC.
EN/LZT 720 0008
R1A
2001-06-26
319 (421)
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