Patent ID: 11910246
Assignee: SOENGHUN KIM
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 4:
5. A master node (MN) in a wireless communication system, the MN comprising:
a transceiver configured to transmit and receive a signal; and
a controller configured to control the transceiver to:
transmit, to a first Secondary Node (SN), a first base station control message, wherein the first base station control message includes first information in response to a preparation procedure for a first reconfiguration procedure being performed;
receive, from the first SN, a second base station control message, wherein the second base station control message includes second information, and wherein the second information includes a cell global identifier of a specific cell for the first reconfiguration procedure;
transmit, to a terminal, a first Long Term Evolution (LTE) downlink (DL) message, wherein the first LTE DL message includes a first identifier and one or more CondReconfigToAddMod, and wherein each of the one or more CondReconfigToAddMod includes an execution condition, a second identifier, and a New Radio (NR) DL message;
receive, from the terminal, a first LTE uplink (UL) message, wherein the first LTE UL message includes the first identifier, and wherein the first identifier corresponds to the first LTE DL message;
receive, from the terminal, a second LTE UL message, wherein the second LTE UL message includes the second identifier, and wherein the second identifier corresponds to the NR DL message;
transmit, to a second SN, a third base station control message, wherein the third base station control message includes tunnel information for data forwarding; and
transmit, to the first SN, a fourth base station control message, wherein the fourth base station message includes a NR UL message received from the terminal.