Method for controlling base station in multi-rat environment and transmitting/receiving data according to control of base station, and apparatus for performing same

A method for transmitting and receiving data under control of an entity of a first radio access technology (RAT) by a base station (BS) of a second RAT in a multi-RAT environment, the method comprising:

• receiving a message for requesting for transition into an operating mode of the BS of the second RAT from the entity of the first RAT;
• and
• transiting the operating mode based on the message,
• wherein the transiting of the operating mode comprises changing an opportunity that the BS of the second RAT occupies a radio resource of the second RAT through contention with a user equipment (UE) that accesses the first RAT.

An entity of a first radio access technology (RAT) for controlling a base station (BS) of a second RAT in a multi-RAT environment, the entity comprising:

• a processor for determining an operating mode of the second RAT;
• and
• a transmitter for transmitting a message for requesting for transition into the determined operating mode to the BS of the second RAT,
• wherein the message changes an opportunity that the BS of the second RAT occupies a radio resource of the second RAT through contention with a user equipment (UE) that accesses the first RAT.

A base station (BS) of a second radio access technology (RAT) for transmitting and receiving data under control of an entity of a first RAT in a multi-RAT environment, the BS comprising:

• a receiver for receiving a message for requesting for transition into an operating mode of the BS of the second RAT from the entity of the first RAT;
• and
• a processor for transiting the operating mode based on the message,
• wherein the processor changes an opportunity that the BS of the second RAT occupies a radio resource of the second RAT through contention with a user equipment (UE) that accesses the first RAT.