Method and apparatus for transmitting and receiving feedback information in mobile communication system using multiple antennas

A method in a mobile communication system, the method comprising:

• receiving a feedback configuration message including report mode information;
• and
• transmitting a feedback message including a channel quality indicator (CQI),
• wherein the CQI is generated by using at least two channel status indication reference signal (CSI-RS) resource configurations when the feedback configuration message includes a type of multiple input multiple output (MIMO),
• a precoding matrix indicator is determined based on codebook information associated with the type of MIMO, and
• a rank indicator and the precoding matrix indicator are included in the feedback message based on the report mode information.

An evolved Node B (eNB) in a mobile communication system, the eNB comprising:

• a transceiver for transmitting and receiving signals;
• and
• a controller configured to control to:
• transmit a feedback configuration message including report mode information, and
• receive a feedback message including a channel quality indicator (CQI),
• wherein the CQI is generated by using at least two channel status indication reference signal (CSI-RS) resource configurations when the feedback configuration message includes a type of multiple input multiple output (MIMO),
• a precoding matrix indicator is determined based on codebook information associated with the type of MIMO, and
• a rank indicator and the precoding matrix indicator are included in the feedback message based on the report mode information.

A user equipment (UE) in a mobile communication system, the UE comprising:

• a transceiver for transmitting and receiving signals;
• and
• a controller configured to control to:
• receive a feedback configuration message including report mode information, and
• transmit a feedback message including a channel quality indicator (CQI),
• wherein the CQI is generated by using at least two channel status indication reference signal (CSI-RS) resource configurations when the feedback configuration message includes a type of multiple input multiple output (MIMO),
• a precoding matrix indicator is determined based on codebook information associated with the type of MIMO, and
• a rank indicator and the precoding matrix indicator are included in the feedback message based on the report mode information.