12.113GPPFault management of the Base Station System (BSS)TS
The present document specifies the requirements and model necessary for the standardised fault management (FM) aspects of operation, administration and maintenance (OAM) of a multivendor GSM PLMN.
The management of a GSM PLMN follows the systems management model outlined in ITU-T X.701  which structures systems management into various aspects. The present document addresses the functional aspects of fault management.
Fault management provides the following facilities during the operation and maintenance phases of the PLMN under normal and failure conditions:
– installation and acceptance testing
– putting into service
– keeping the network operational.
The structure of the present document has been defined taking into consideration two aspects:
1) The structured, top-down process of the standardisation. A general description of the ‘Fault Management’ of a Network Element (NE) is presented in clause 4. In clause 5, there is a specification of the four fault management ‘Service Components’ and, in clauses 6 and 7, the specification of the ‘Functions’ which the above service components are based on.
2) The reusability of the present document for other NEs of the PLMN. The requirements in clauses 4, 5 and 6 have been specified in a generic way (referring to a generic NE instead of a specific Base Station System) and all BSS specific management functions are specified separately in clause 7.
GSM fault management is based upon the context set by GSM 12.00. Principles, concepts and definitions are based on the M- and X-series of the ITU-T standards (with the exception of the Alarm Surveillance management functions based on ITU-T Q.821 and the Fault Correction management functions based on ITU-T G.774.03). Where the M-series of standards is not applicable, then the X-series is used as far as possible.