Method and apparatus for a master cell group

A user equipment (UE) for wireless communication, comprising:

• at least one memory;
• and
• at least one processor coupled with the at least one processor and configured to cause the UE to:
• receive a radio resource control (RRC) reconfiguration message including a reconfiguration with synchronization information element (IE) and dual active protocol stack (DAPS) configuration information;
• perform a DAPS handover procedure based on the synchronization IE and the DAPS configuration information;
• and
• transmit, in response to a radio link failure (RLF) of a source link for a master cell group (MCG) during the DAPS handover procedure, a report related to the RLF after successfully completing the DAPS handover procedure, wherein the report includes an indication indicating a successful completion of the DAPS handover procedure, a cell identifier (ID) of a source cell, a connection failure type, and a cause for the RLF of the source link.

A base station for wireless communication, comprising:

• at least one memory;
• and
• at least one processor coupled with the at least one processor and configured to cause the base station to:
• transmit a user equipment (UE) information request;
• receive a UE information response including a report, wherein the report includes information related to a radio link failure (RLF) of a source link for a master cell group (MCG) during a dual active protocol stack (DAPS) handover procedure, wherein the report includes an indication indicating a successful completion of the DAPS handover procedure, a cell identifier (ID) of a source cell, a connection failure type, and a cause for the RLF of the source link;
• and
• transmit a failure indication, wherein the failure indication includes an information element (IE) indicating the successful completion of the DAPS handover procedure.

A method performed by a user equipment (UE), the method comprising:

• receiving a radio resource control (RRC) reconfiguration message including a reconfiguration with synchronization information element (IE) and dual active protocol stack (DAPS) configuration information;
• performing a DAPS handover procedure based on the synchronization IE and the DAPS configuration information;
• and
• transmitting, in response to a radio link failure (RLF) of a source link for a master cell group (MCG) during the DAPS handover procedure, a report related to the RLF after successfully completing the DAPS handover procedure, wherein the report includes an indication indicating a successful completion of the DAPS handover procedure, a cell identifier (ID) of a source cell, a connection failure type, and a cause for the RLF of the source link.