One of the targets of SON is to keep the network quality and performance with minimum operator attention and maintenance costs. Self-healing is a SON functionality which detects problems itself and solves or mitigates these problems to avoid user impact and to significantly reduce maintenance costs.

The present document is focused on studying on self-healing of SON. This study provides the general procedure of self-healing, and collects the use cases of self-healing and proposed related requirements. The findings and proposals of the study may be used to help generate new Technical Specifications (TS) and/or enhance existing Technical Specifications.