公开(公告)号：US20180205533A1

公开(公告)日：2018-07-19

申请号：US15742699

申请日：2016-06-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Byung-Hwan LEE ,  Jong-Bu LIM ,  Ji-Yun SEOL ,  Chae-Hee LIM ,  Su-Ryong JEONG ,  Sung-Nam HONG

IPC: H04L5/14

Abstract: Disclosed is a 5G or pre-5G communication system to be provided for supporting a data transmission rate higher than that of a 4G communication system such as LTE. A method for cancelling self-interference in a full-duplex communication system is provided. The method comprises the steps of: cancelling cancellable self-interference components through an analog interference cancellation circuit, and estimating a channel state of an uplink channel and a channel state of a downlink channel on the basis of remaining residual self-interference components; estimating a channel capacity for each of possible beam combinations on the basis of the estimated uplink channel state and downlink channel state; selecting the beam combination having the largest channel capacity from among the possible beam combinations; and cancelling self-interference from a received signal on the basis of the selected beam combination.