Abstract:
The present disclosure relates to a communication scheme and system for converging a 5-th generation (5G) communication system for supporting a higher data rate beyond a 4-th generation (4G) system with an internet of things (IoT) technology. The present disclosure is applicable to intelligent services (e.g., smart homes, smart buildings, smart cities, smart cars, connected cars, health care, digital education, retails, security, safety-related services, and so forth) based on the 5G communication technology and the IoT-related technology. In an embodiment of the present disclosure, in a wireless communication system, a user equipment (UE) receives control information about a secondary cell (SCell) from a primary cell (PCell) via a licensed band and communicates with PCell via the licensed band channel in an unoccupy window for an unlicensed band channel of SCell.