4.1.3 Distributed SON

28.3133GPPManagement and orchestrationRelease 17Self-Organizing Networks (SON) for 5G networksTS

The distributed SON (D-SON) means that the SON algorithm is located in the NFs. The distributed SON concept has been defined for LTE in TS 32.500 [2].

For D-SON, the NFs monitors the network events, analyses the network data, makes decisions on the SON actions and executes the SON actions in the network nodes.

Figure 4.1.3-1 shows that the 3GPP management system (MnF in Domain or 3GPP Cross Domain) is responsible for the following functions:

a) D-SON management function:

1) Switch on/off a D-SON function,

2) Provide policies, targets, and supplementary information (e.g., the range attributes) for a D-SON function.

b) D-SON evaluation function: evaluate whether the issues have been resolved, and may apply D-SON management actions.

Figure 4.1.3-1: D-SON process