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Content for TR 32.822 Word version: 9.0.0

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2 References p. 5

3 Definitions, symbols and abbreviations p. 5

3.1 Definitions p. 5

3.2 Symbols p. 5

3.3 Abbreviations p. 5

4 Concepts and background p. 5

5 Requirements of system maintenance over Itf-N p. 6

5.1 Business level requirements p. 6

5.1.1 High-level use case p. 6

5.1.2 EMS maintenance over Itf-N p. 6

5.2 Specification level requirements p. 6

5.2.1 Use cases p. 6

5.2.1.2 Time synchronization between IRPManager and IRPAgent p. 6

5.2.1.3 Resources monitoring on EMS p. 8

5.2.1.4 Software management of EMS p. 8

5.2.2 Requirements p. 9

5.2.2.1 Void

5.2.2.2 Time synchronization between IRPManager and IRPAgent p. 9

5.2.2.3 Resources monitoring on EMS p. 9

5.2.2.4 Software version management of EMS p. 9

6 Solution for system maintenance over Itf-N p. 10

6.1 Existing standards or de-facto standards p. 10

6.2 Detailed proposal p. 10

6.2.1 Resources monitoring on EMS p. 10

6.2.2 Software management of EMS p. 11

6.3.3 Time synchronization between IRPManager and IRPAgent p. 11

7 Conclusions p. 11

$ Change history p. 12