3G Fault Management
The present document specifies the overall requirements for 3G Fault Management as it applies to the NE, EM and NM.
Clauses 4 and 5 define the fault management concept and functional requirements for the detection of faults and the generation, collection and presentation of alarms, operational state data and test results across 3G systems. These functions are described on a non-formal level since the formal standardisation of these functions across the different vendors' equipment is not required. The functional areas to be specified in this part of the document cover:
• fault surveillance and detection in the NEs;
• notification of alarms (including alarm cease) and operational state changes;
• retrieval of current alarms from the NEs;
• fault isolation and defence mechanisms in the NEs;
• alarm filtering;
• management of alarm severity levels;
• alarm and operational state data presentation and analysis at the OS;
• retention of alarm and operational state data in the NEs and the OS; and
• the management of tests.
Any (re)configuration activity exerted from the OMC as a consequence of faults will not be subject of the present document, these are described in [1].
Clauses 6 and 7 of the present document describe specific aspects of the Fault Management for the UTRAN and the CN, respectively, with particular emphasis on the exact fault definitions and alarm information to be generated. The definition of the test procedures and the relationship with the UTRAN resp. CN management architecture as defined in [3].
Finally, Clause 8 of the present document defines the functional requirements for the standard Itf-N, for the purpose of Fault Management of 3G networks, as seen from the Network Manager (NM). The Itf-N is fully standardised so as to connect systems of any vendor to the NM via this interface.