Method and UE for managing in-device co-existence (IDC) issue

A terminal in a wireless communication system, comprising:

• a transceiver;
• a memory;
• and
• a processor, coupled to the memory and the transceiver, configured to control to:
• transmit, to a base station, capability information on a licensed assisted access (LAA) operation of the terminal,
• receive, from the base station, configuration information on an in-device coexistence (IDC) indication, the configuration information indicating that the terminal is allowed to indicate that the terminal has a hardware sharing problem between the LAA operation and a wireless local area network (WLAN) operation, wherein the LAA operation is configured for the terminal based on the capability information and is associated with a secondary cell using an unlicensed band,
• identify that the terminal has the hardware sharing problem on the secondary cell,
• transmit, to the base station, an IDC indication indicating that the terminal has the hardware sharing problem based on the configuration information in case that the hardware sharing problem is identified, and
• receive, from the base station, information indicating a de-activation of the secondary cell as a frequency division multiplexing (FDM) solution to resolve the IDC problem based on the IDC indication.

A method performed by a base station, the method comprises:

• receiving, from a terminal, capability information on a licensed assisted access (LAA) operation of the terminal;
• transmitting, to the terminal, configuration information on an in-device coexistence (IDC) indication, the configuration information indicating that the terminal is allowed to indicate that the terminal has a hardware sharing problem between the LAA operation and a wireless local area network (WLAN) operation, wherein the LAA operation is configured for the terminal based on the capability information and is associated with a secondary cell using an unlicensed band;
• receiving, from the terminal, an IDC indication indicating that the terminal has the hardware sharing problem as a response to the hardware sharing problem being identified by the terminal based on the configuration information, and
• transmitting, to the terminal, information indicating a de-activation of the secondary cell as a frequency division multiplexing (FDM) solution to resolve the IDC problem based on the IDC indication.

A base station in a wireless communication system, comprising

• a transceiver;
• a memory;
• and
• a processor, coupled to the memory and the transceiver, configured to:
• receive, from a terminal, capability information on a licensed assisted access (LAA) operation of the terminal,
• transmit, to the terminal, configuration information on an in-device coexistence (IDC) indication, the configuration information indicating that the terminal is allowed to indicate that the terminal has a hardware sharing problem between the LAA operation and a wireless local area network (WLAN) operation, wherein the LAA operation is configured for the terminal based on the capability information and is associated with a secondary cell using an unlicensed band,
• receive, from the terminal, an IDC indication indicating that the terminal has the hardware sharing problem as a response to the hardware sharing problem being identified by the terminal based on the configuration information, and
• transmit, to the terminal, information indicating a de-activation of the secondary cell as a frequency division multiplexing (FDM) solution to resolve the IDC problem based on the IDC indication.