Transreceiving method and apparatus applying beam diversity in wireless communication system

A terminal in a wireless communication system, the terminal comprising:

• a transceiver configured to transmit and receive a signal;
• and
• a controller configured to:
• receive, from a base station, a data,
• transmit, to the base station, a message indicating a hybrid automatic repeat request (HARQ) negative acknowledgement (NACK) for the data, wherein the message includes an indicator for requesting a HARQ retransmission of the data on a plurality of transmission beams of the base station, the plurality of the transmission beams including a first transmission beam and a second transmission beam,
• receive, from the base station, a first HARQ data on a first reception beam and a second HARQ data on a second reception beam simultaneously based on the indicator, and
• process the first HARQ data and the second HARQ data together,
• wherein the first HARQ data and the second HARQ data are HARQ retransmission data for the data, and
• wherein the first HARQ data is at least partly equal to the second HARQ data.

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

• transmitting, to a terminal, a data;
• receiving, from the terminal, a message indicating a hybrid automatic repeat request (HARQ) negative acknowledgement (NACK) for the data, wherein the message includes an indicator for requesting a HARQ retransmission of the data on a plurality of transmission beams including a first transmission beam and a second transmission beam;
• selecting a-the first transmission beam for a first HARQ data and a-the second transmission beam for a second HARQ data based on the indicator;
• and
• transmitting, to the terminal, the first HARQ data on the first transmission beam and the second HARQ data on the second transmission beam simultaneously based on the indicator,
• wherein the first HARQ data and the second HARQ data are HARQ retransmission data for the data, and
• wherein the first HARQ data is at least partly equal to the second HARQ data.

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

• a transceiver configured to transmit and receive a signal;
• and
• a controller configured to:
• transmit, to a terminal, a data,
• receive, from the terminal, a message indicating a hybrid automatic repeat request (HARQ) negative acknowledgement (NACK) for the data, wherein the message includes an indicator for requesting a HARQ retransmission of the data on a plurality of transmission beams including a first transmission beam and a second transmission beam,
• select the first transmission beam for a first HARQ data and the second transmission beam for a second HARQ data based on the indicator, and
• transmit, to the terminal, the first HARQ data on the first transmission beam and the second HARQ data on the second transmission beam simultaneously based on the indicator,
• wherein the first HARQ data and the second HARQ data are HARQ retransmission data for the data, and
• wherein the first HARQ data is at least partly equal to the second HARQ data.