Verification in self-organizing networks
It is proposed a method of operating a network by a SON Verification Function ( 20 ), monitoring a network behavior and verifying a change in network based on the monitored network behavior. The SON Verification Function performs a post-action verification of CM changes and may request from a SON coordinator to undo CM changes.
1. A method of operating a network by a self-organizing network (SON) verification function, comprising:
monitoring change by another SON function of at least one configuration management parameter and performance data of the network;
observing a performance degradation in the network;
identifying the change as responsible for the performance degradation; and
sending an undo execution request to a SON coordinator for reversion of the change
while blocking another SON function trying to modify the at least one configuration management parameter.
2. The method according to claim 1 , further comprising:
accessing configuration management data and/or performance management data and/or fault management data.
3. The method according to claim 1 , further comprising:
changing configuration management data.
4. The method according to claim 1 , further comprising:
providing a training for the SON verification function.
5. The method according to claim 1 , further comprising:
determining the degradation in a defined area of the network; and
determining a SON function which has initiated the degradation.
6. The method according to claim 1 , further comprising:
accessing configuration management history data.
7. The method according to claim 1 , further comprising:
providing a measure which pre-defines a degradation.
8. The method according to claim 1 , further comprising:
collecting performance information of a plurality of cells; and
providing a performance indicator pattern for the cells.
9. A SON verification function, which is adapted to perform the method according to claim 1 .
10. A network system comprising a plurality of SON functions,
wherein at least one of the plurality of SON functions is a SON verification function, which is adapted to perform the method according to claim 1 .
11. The network system according to claim 10 , wherein the SON verification function has a higher hierarchy compared to the further SON functions.
12. The network system according to claim 11 , wherein the SON verification function comprises a diagnoser.
13. The network system according to claim 11 , wherein the SON verification function comprises an interface for connecting with a SON coordinator, wherein the SON coordinator comprises a verification impact area interpreter.
14. The network system according to claim 11 , wherein at least one of the SON functions comprise an interface for connecting with a self-organizing network function identification and objective storage.
15. The network system according to claim 10 , wherein the SON verification function comprises an undo functionality.
16. A non-transitory computer-readable medium, in which a computer program is stored, which, when being executed by a processor, is adapted to control or carry out the method according to claim 1 .