receiving, from a base station of a cell associated with a SIM among the multiple SIMs, system information including paging related configuration information, wherein the paging related configuration information includes information whether the cell supports an adjustment of paging occasion (PO) associated with the SIM;

in case that the cell is identified to support the adjustment, determining whether a PO collision is detected based on the paging related configuration information;

in case that the PO collision is detected, transmitting, to the base station, a radio resource control (RRC) setup request message including a cause value indicating that the UE requests an RRC connection establishment with the base station for the adjustment of the PO associated with the SIM;

receiving, from the base station, an RRC setup message for establishing the RRC connection based on the cause value; and

transmitting, to the base station, an RRC setup complete message including a registration request message based on an identification that the PO collision is detected.