Apparatus and method for multi cell communication using beamforming in wireless communication system

An apparatus for a terminal in a wireless communication system, the apparatus comprising:

• at least one transceiver configured to communicate with a first base station using a first antenna and communicate with a second base station using a second antenna;
• and
• at least one processor, operatively coupled to the at least one transceiver, configured to:
• identify a quality of a radio link between the first base station and the first antenna,
• when the identified quality of the radio link is less than a threshold, transmit a first message including information related to the quality of the radio link to the second base station using the second antenna,
• receive, from the second base station, a second message instructing to change a serving cell of the first antenna, and
• in response to receiving the second message, release an access with the first base station using the first antenna and change an antenna setting for the second base station from a single input single output to a multi-input multi-output,
• wherein the at least one transceiver is further configured to communicate with the second base station using the first antenna and the second antenna.

An apparatus for a base station in a wireless communication system, the apparatus comprising:

• at least one transceiver configured to:
• communicate with a terminal through a first antenna of the terminal, wherein a second antenna of the terminal is used for communicating with another base station,
• receive a first message including information related to a quality of a radio link between the other base station and the second antenna when the quality of the radio link between the other base station and the second antenna is less than a threshold,
• in response to receiving the first message, transmit, to the other base station, a second message including information related to a quality of a radio link between the other base station and the second antenna,
• receive, from the other base station, a third message instructing to change a serving cell of the second antenna of the terminal, in response to receiving the third message, transmit, to the terminal, a fourth message instructing to change a serving cell of the second antenna of the terminal, so that the terminal changes an antenna setting from a single input single output to a multiple input multiple output, and releases an access with the other base station, and
• communicate with the terminal through the first antenna of the terminal and a second antenna of the terminal.