SON version 2

Then main functionality of SON includes:self-configuration, self-optimization and self-healing.

Self-configuration process is defined as the process where newly deployed nodes (eNBs) are configured by automatic installation procedures to get the necessary basi configuration for opration

Self-optimization process is defined as the process where UE and eNB measurement and performance measurement are used to autoune the network.

Self-healing function aims at automatic detection and localization of most of the failures and applies self-healing mechanisms to solve several failure classes, such as reducing the output power in case of temperature failure or automatic fallback to previous software version.

A self-configuration SubSystem will be created in QAM to be responsible for the self-configuration of eNB. For self-optimaisation functions, they can be located in QAM or eNB or both of them. So according to the location of optimisation algorithms, SON can be divided into three classess: Centralised SON, Distributed SON and Hybrid SON.

参考: 3g 4g wireless blog