A method and apparatus for handling busy indication for musim ue

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

• transmitting, to a multiple subscriber information module user equipment (MUSIM UE), a paging request on a second SIM in a radio resource control (RRC) inactive state via a second network, while the MUSIM UE is receiving a service on a first SIM from a first network;
• receiving, from the MUSIM UE, a busy indication in response to the paging request;
• and
• stop transmitting the paging request in response to receiving the busy indication.

A multiple subscriber information module user equipment (MUSIM UE) in a wireless communication system, the MUSIM UE comprising:

• a transceiver configured to transmit or receive a signal;
• and
• a controller coupled with the transceiver and configured to:
• receive, from a second network, a paging request on a second SIM in a radio resource control (RRC) inactive state, while receiving service on a first SIM from a first network;
• and
• in case that the controller rejects the paging request, and criteria for transmitting a busy indication is met, transmit the busy indication to the second network in response to the paging request, and
• in case that the controller rejects the paging request, and the criteria for transmitting the busy indication is met, avoid transmitting the busy indication to the second network in response to the paging request.

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

• a transceiver configured to transmit or receive a signal;
• and
• a controller coupled with the transceiver and configured to:
• transmit, to a multiple subscriber information module user equipment (MUSIM UE), a paging request on a second SIM in a radio resource control (RRC) inactive state via a second network, while the MUSIM UE is receiving a service on a first SIM from a first network;
• receive, from the MUSIM UE, a busy indication in response to the paging request;
• and
• stop transmitting the paging request in response to receiving the busy indication.