3GPP SA5 has agreed to accept Self-Organizing Networks (SON) in studying LTE&SAE OAM architecture, and 3GPP RAN has agreed to study UMTS home NodeB and LTE home NodeB. For SON it is expected that UE, NodeB, OAM system - both Element Management System (EMS) and Network Management System (NMS) in LTE/UMTS system - are involved in supporting SON as follows:

1. Home Node B specific aspect of Interface between NMS and EMS
2. Home Node B specific aspect of Interface between 2 EMSs
3. Home Node B specific aspect of Interface between EMS and Home Node B
4. Interface between 2 Home Node Bs, or between one Home Node B and one Macro eNodeB (depending on output of RAN3 study)

For both LTE and UMTS home NodeB, SON is expected to be necessary because:

1. Number of home NodeB can be very big.
2. Subscriber may switch on and off home NodeB frequently.
3. Operator may not be able to access home NodeB physically as it is located in subscriber's place.

The present document intends to study the following:

1. Define SON OAM solution architecture for both LTE and UMTS home NodeB.
2. Identify differences between SON OAM solution architecture for LTE Marco eNodeB and that for LTE and UMTS home NodeB; Propose aligned SON OAM solution architecture.
3. Identify what can be standardized for SON for LTE and UMTS NodeB in 3GPP SA5.
4. Prepare the work for a later implementation work item.