Method and apparatus for mobility robustness optimization

An apparatus, comprising:

• a memory;
• and
• a processor coupled to the memory, the processor configured to cause the apparatus to:
• receive, at a first base station (BS) and from a user equipment (UE), assistant information related to a successful handover of the UE from a second BS to the first BS;
• wherein the successful handover comprises at least one of a successful handover triggered by a handover command, a successful conditional handover (CHO), or a successful dual active protocol stack (DAPS) handover.

A method, comprising:

• performing a handover procedure associated with a target cell, the handover procedure comprising at least one of:
• a handover procedure in response to receiving a handover command;
• a conditional handover (CHO) procedure in response to meeting a CHO execution condition;
• or
• a dual active protocol stack (DAPS) handover procedure in response to receiving a DAPS handover command;
• accessing the target cell;
• storing assistant information related to a successful handover to the target cell;
• and
• transmitting the assistant information related to the successful handover to the target cell in response to a trigger condition for transmitting assistant information being met.