公开(公告)号：US20180183628A1

公开(公告)日：2018-06-28

申请号：US15797473

申请日：2017-10-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jin-ho KIM ,  Hyun-seung JOO ,  ln-hyoung KIM ,  Young-seok JUNG

IPC: H04L25/02 ,  H04B7/0456

CPC classification number: H04L25/0228 ,  H04B7/0456 ,  H04L25/0222

Abstract: Provided are a wireless communication apparatus and a channel estimation methods of the wireless communication apparatus. The channel estimation methods includes receiving a first sub-frame and a second sub-frame, the first sub-frame including a plurality of first reference signals pre-coded based on a first pre-coding matrix and the second sub-frame including a plurality of second reference signals pre-coded based on a second pre-coding matrix; determining whether the first pre-coding matrix and the second pre-coding matrix are the same, based on a channel variation in the time domain; and performing, in response to determining that the first pre-coding matrix and the second pre-coding matrix are the same, channel estimation with respect to a resource element included in the second sub-frame based on at least of the plurality of first reference signals and at least one of the plurality of second reference signals.