Method and device for conditionally adding and changing cell
摘要
說(shuō)明書(shū)
In addition, an embodiment of the disclosure may provide a master node (MN) in a wireless communication system, the MN including: a transceiver; and a controller configured to perform control to receive, from a source-secondary node (S-SN), a first message including a conditional handover indicator, a conditional handover candidate cell list, a condition for each candidate cell, source cell group configuration information generated by the S-SN, and target cell group configuration information generated by the S-SN, transmit, based on the first message and to a first target-secondary node (T-SN), a second message including the target cell group information, receive, from the first T-SN, a third message including the target cell group information updated by the first T-SN, and transmit, to a terminal, an MN radio resource control (RRC) reconfiguration message including an S-SN RRC reconfiguration message, wherein the S-SN RRC message further includes the source cell group configuration information generated by the S-SN and the target cell group information updated by the first T-SN.
In addition, an embodiment of the disclosure may provide a method performed by a target-secondary node (T-SN) in a wireless communication system, the method including: receiving, from a master node (MN), a first message including a conditional handover indicator, source cell group configuration information generated by a source-secondary node (S-SN), a target candidate identifier list, a target cell identifier related to the target candidate identifier list, cell group configuration information requested by the MN from the T-SN, and target cell group information; determining, based on the first message, to update the target cell group information; and transmitting, to the MN, a second message including the updated target cell group information.
