Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Telecommunication management; Fault Management; Part 1: 3G fault management requirements (V14.0.0; 3GPP TS 32.111-1 version 14.0.0 Release
The present document specifies the overall requirements for 3GPP Fault Management (FM) as it applies to the Network Elements (NE)@ Element Manger (EM) and Network Manager (NM). Clause 4 defines the FM concept and functional requirements for the detection of faults and the generation@ collection and presentation of alarms@ operational state data and test results across 3GPP systems. These functions are described on a non-formal level since the formal standardization of these functions across the different vendors' equipment is not required. The functional areas specified in the present 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 Operations System (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 EM as a consequence of faults will not be subject of the present document. These are described in [19]. Clause 5 of the present document defines the functional requirements for the standard Itf-N@ for the purpose of Fault Management of 3GPP systems @ as seen from the Network Manager (NM). The Itf-N is fully standardized so as to connect systems of any vendor to the NM via this interface.