B.2 Coordination of COC, CCO and ES using priority of SON functions

28.6283GPPInformation Service (IS)Release 17Self-Organizing Networks (SON) Policy Network Resource Model (NRM) Integration Reference Point (IRP)Telecommunication managementTS

To prevent conflicting adjustment from COC, ES and optimization from CCO in the common affected cell(s) (e.g., Cell 2 in the Figure 4.7.3.2), the cell(s) which may need to be coordinated among COC, CCO and ES, i.e., the impact area information, should be known by the SON Coordination Function. By comparing the priorities of COC, CCO and ES, SON Coordination Function will decide to do the highest-priority action and suspend the low-priority actions on the coordinated cell(s). The priorities of COC, CCO and ES can be preset by operator to SON Coordination Function, or SON Coordination Function inquires the default priority of COC, CCO and ES to each of them.

The cell which needs to be coordinated among COC, CCO and ES is:

• The cell in which there is coverage or capacity problem and CCO action is needed, meanwhile the cell is outage or compensating or going to compensate for outage or ES; or
• The cell which is located in the CCO optimization analysis area for other cell which has coverage or capacity problem, meanwhile the cell is outage or compensating or going to compensate for outage or ES;

After the highest-priority SON function executes action, the SON Coordination Function is informed about the result (successful/unsuccessful, parameters changes) of the executed highest-priority SON action. Then, SON Coordination Function will analyse the latest network situation to decide how to deal with the suspended low-priority SON actions, for example, resuming or rejecting.