Method and apparatus for handling mobility in dual connectivity in wireless communication system

A method comprising:

• receiving, by a wireless device from a master node, a reconfiguration message comprising a condition for a conditional mobility of the wireless device from a source secondary node to a target secondary node, and a configuration related to the target secondary node;
• and
• transmitting, by the wireless device to the master node, a complete message for the configuration related to the target secondary node based on the condition for the conditional mobility being met,
• wherein a request message for the conditional mobility is transmitted from the master node to the target secondary node,
• wherein an acknowledgement message comprising the configuration related to the target secondary node is transmitted from the target secondary node to the master node,
• wherein at least one of the request message or the complete message comprises inactivity status information that the wireless device is in an inactive state, and
• wherein resources for a communication with the target secondary node are suspended by the target secondary node based on the inactivity status information.

A target secondary node comprising:

• a transceiver;
• a memory;
• and
• at least one processor operatively coupled to the transceiver and the memory,
• wherein the memory stores instructions that, based on being executed by the at least one processor, perform operations comprising:
• receiving, from a master node, a request message for a conditional mobility of a wireless device from a source secondary node to the target secondary node;
• transmitting, to the master node, an acknowledgement message comprising a configuration related to the target secondary node;
• receiving, from the master node, a complete message for the configuration related to the target secondary node based on a condition for the conditional mobility being met,
• wherein at least one of the request message or the complete message comprises inactivity status information that the wireless device is in an inactive state;
• and
• suspending resources for a communication with the wireless device based on the inactivity status information.