Method and apparatus for designing and operating multi-dimensional constellation

A method of a second terminal in a wireless communication system, the method comprising:

• performing channel measurement, based on one or more first reference signals received from a base station;
• identifying channel distribution information between the second terminal and the base station, based on the measured channel;
• transmitting user feature information related to the channel distribution information to the base station;
• receiving, from the base station, one or more constellations determined based on the user feature information;
• and
• performing communication with the base station, based on the received one or more constellations,
• wherein the one or more constellations corresponds to a constellation set generated by a first terminal, and a similarity in user feature information between the first terminal and the second terminal satisfies a predetermined condition.

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

• receiving, from a first terminal, information on a constellation set including one or more constellations;
• transmitting a reference signal for channel measurement to the first terminal;
• receiving a constellation index (CI) indicating a constellation corresponding to a representative channel vector (RCV) having a smallest distance with a channel vector obtained based on the reference signal;
• determining the constellation indicated by the CI;
• and
• performing communication with the first terminal, based on the determined constellation.

A first terminal in a wireless communication system, comprising:

• a transceiver;
• and
• a controller configured to:
• perform channel measurement, based on one or more first reference signals received from a base station,
• identify channel distribution information between the first terminal and the base station, based on the measured channel,
• determine representative channel vectors (RCV) set including one or more RCVs, based on the identified channel distribution information,
• generate one or more constellations corresponding to the selected one or more RCVs,
• transmit, to the base station, information on a constellation set including the one or more constellations,
• determine a constellation corresponding to an RCV having a smallest distance with a channel vector obtained based on the second reference signal;
• transmit, to the base station, a constellation index (CI) indicating the determined constellation;
• and
• perform communication with the base station, based on the constellation corresponding to the RCV.

A second terminal in a wireless communication system, comprising:

• a transceiver;
• and
• a controller configured to:
• perform channel measurement, based on one or more first reference signals received from a base station,
• identify channel distribution information between the second terminal and the base station, based on the measured channel,
• transmit user feature information related to the channel distribution information to the base station,
• receive, from the base station, one or more constellations determined based on the user feature information, and
• perform communication with the base station, based on the received one or more constellations,
• wherein the one or more constellations correspond to a constellation set generated by a first terminal, and a similarity in user feature information between the first terminal and the second terminal satisfies a predetermined condition.

A base station in a wireless communication system, comprising:

• a transceiver;
• and
• a controller configured to:
• receive, from a first terminal, information on a constellation set including one or more constellations,
• transmit a reference signal for channel measurement to the first terminal,
• receive a constellation index (CI) indicating a constellation corresponding to a representative channel vector (RCV) having a smallest distance with a channel vector obtained based on the reference signal,
• determine the constellation indicated by the CI, and
• perform communication with the first terminal, based on the determined constellation.