Method and apparatus for implementing dual connectivity

A method performed by a second base station in a wireless communication system, the method comprising:

• receiving, from a first base station, a first message for configuring at least one cell associated with the second base station, the first message including in device coexistence (IDC) related information and discontinuous reception (DRX) related information associated with a terminal, the second base station is being associated with a dual connectivity for the terminal, in case that it is determined by the first base station that the IDC related information and the DRX related information associated with the terminal is transmitted from the first base station to the second base station;
• allocating a resource based on the first message;
• and
• transmitting, to the first base station, a second message as a response to the first message,
• wherein the IDC related information includes a frequency affected by an IDC problem and a direction of IDC interference.

A first base station in a wireless communication system, the first base station comprising:

• a transceiver;
• and
• a controller coupled with the transceiver and configured to:
• determine whether to transmit in device coexistence (IDC) related information and discontinuous reception (DRX) related information associated with a terminal to a second base station associated with a dual connectivity for the terminal,
• transmit, to the second base station, a first message for configuring at least one cell associated with the second base station, the first message including the IDC related information and the DRX related information associated with the terminal, in case that it is determined to transmit the IDC related information and the DRX related information to the second base station,
• receive, from the second base station, a second message as a response to the first message, and
• transmitting, to the terminal, a third message associated with the dual connectivity, based on the second message,
• wherein the IDC related information includes a frequency affected by an IDC problem and a direction of IDC interference.

A second base station in a wireless communication system, the second base station comprising:

• a transceiver;
• and
• a controller coupled with the transceiver and configured to:
• receive, from a first base station, a first message for configuring at least one cell associated with the second base station, the first message including in device coexistence (IDC) related information and discontinuous reception (DRX) related information associated with a terminal, the second base station is being associated with a dual connectivity for the terminal, in case that it is determined by the first base station that the IDC related information and the DRX related information associated with the terminal is transmitted from the first base station to the second base station,
• allocate a resource based on the first message, and
• transmit, to the first base station, a second message as a response to the first message,
• wherein the IDC related information includes a frequency affected by an IDC problem and a direction of IDC interference.

A method performed by a terminal in a wireless communication system, the method comprising:

• transmitting, to a first base station, a control message including in device coexistence (IDC) related information and discontinuous reception (DRX) related information;
• receiving, from the first base station, a first message for a dual connectivity with a second base station;
• transmitting, to the first base station, a second message as a response to the first message;
• and
• performing a random access procedure with the second base station, based on the first message,
• wherein the IDC related information includes a frequency affected by an IDC problem and a direction of IDC interference, and
• wherein the IDC related information and the DRX related information are transmitted from the first base station to the second base station, in case that it is determined by the first base station that the IDC related information and the DRX related information associated with the terminal is transmitted from the first base station to the second base station.

A terminal in a wireless communication system, the terminal comprising:

• a transceiver;
• and
• a controller coupled with the transceiver and configured to:
• transmit, to a first base station, a control message including in device coexistence (IDC) related information and discontinuous reception (DRX) related information,
• receive, from the first base station, a first message for a dual connectivity with a second base station,
• transmit, to the first base station, a second message as a response to the first message;
• and
• perform a random access procedure with the second base station, based on the first message,
• wherein the IDC related information includes a frequency affected by an IDC problem and a direction of IDC interference, and
• wherein the IDC related information and the DRX related information are transmitted from the first base station to the second base station, in case that it is determined by the first base station that the IDC related information and the DRX related information associated with the terminal is transmitted from the first base station to the second base station.