APPARATUS AND METHOD FOR TRANSMITTING FEEDBACK AND REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM

摘要

The present invention relates to a 5^th generation (5G) or a pre-5G communication system which supports a higher data transmission rate after a 4^th generation (4G) communication system such as long term evolution (LTE). In a wireless communication system, a terminal device comprises: a receiving unit which receives signals containing information on a channel state information (CSI) process configuration containing a plurality of CSI configurations from a base station; a control unit which determines a first precoding matrix indicator (PMI) index by using a first non-precoded CSI-reference signal (RS) of a first non-precoded CSI-RS resource, determines a second PMI index by using a second non-precoded CSI-RS of a second non-precoded CSI-RS resource, and determines a third PMI index by using beamformed CSI-RS of a beamformed CSI-RS resource; and a transmitting unit which transmits CIS feedback information containing the first PMI index, the second PMI index, and the third PMI index to the base station.