公开(公告)号：US20180241454A1

公开(公告)日：2018-08-23

申请号：US15752106

申请日：2016-08-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Keon-Kook LEE ,  Young-Han NAM ,  Tae-Young KIM ,  Jee-Hwan NOH ,  Hyun-Il YOO ,  Su-Ryong JEONG

IPC: H04B7/06

CPC classification number: H04B7/0626 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/06 ,  H04B7/0617 ,  H04B7/063 ,  H04B7/0632 ,  H04L5/005

Abstract: The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data transfer rate beyond a 4G communication system such as LTE. A method and an apparatus for transmitting and receiving channel state information are disclosed. The method comprises: a step of transmitting, to a terminal, a signaling message including first information indicating at least one precoding matrix which is applicable to a symbol vector to be transmitted; a step of transmitting, to the terminal, a channel status information-reference signal (CSI-RS) for the terminal; and a step of receiving channel state information including a channel quality indicator (CQI) which is calculated using the selected precoding matrix on the basis of second information from the terminal.