Reference signal measurement method and apparatus for use in wireless communication system including plural base stations with distributed antennas

A method for a base station in a mobile communication system, the method comprising:

• transmitting information on a rank indicator/precoding matrix indicator (RI/PMI) disabled mode for a terminal to the terminal;
• determining whether to transmit configuration information on measuring the channel to the terminal;
• and
• receiving channel information generated based on a result of the determination from the terminal.

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

• a transceiver configured to transmit and receive a signal;
• and
• a controller configured:
• to receive information on a rank indicator/precoding matrix indicator (RI/PMI) disabled mode for the terminal from a base station,
• to determine whether configuration information on measuring the channel is received,
• to identify a reference signal for measuring the channel between a cell-specific reference signal (CRS) and a channel status information reference signal (CSI-RS) based on a result of the determination, and
• to generate channel information based on the identified reference signal.

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

• a transceiver configured to transmit and receive a signal;
• and
• a controller configured:
• to transmit information on a rank indicator/precoding matrix indicator (RI/PMI) disabled mode for a terminal to the terminal,
• to determine whether to transmit configuration information on measuring the channel to the terminal, and
• to receive channel information generated based on a result of the determination from the terminal.