公开(公告)号：US10181937B2

公开(公告)日：2019-01-15

申请号：US15173541

申请日：2016-06-03

Applicant: LG ELECTRONICS INC.

Inventor： Kwangseok Noh ,  Dongkyu Kim ,  Hyunsoo Ko ,  Kukheon Choi ,  Sangrim Lee ,  Hojae Lee

IPC: H04L5/14 ,  H04L29/08 ,  H04B1/54 ,  H04W52/04 ,  H04W52/14 ,  H04W52/24

Abstract: Disclosed herein is method of performing self-interference cancellation in the network nodes supporting full-duplex communication. Specifically, the method includes receiving a desired signal from a user equipment (UE), performing cancellation of self-interference according to a transmitted signal of the network node, the transmitted signal using the same radio resource as the desired signal, determining whether the cancellation of the self-interference is successful, performing, upon determining that the cancellation of the self-interference is successful, decoding of the desired signal and checking cyclic redundancy check (CRC), and performing power control and link adaptation depending on success in performing the cancellation of the self-interference and a result of checking the CRC.

公开(公告)号：US10153924B2

公开(公告)日：2018-12-11

申请号：US15578135

申请日：2016-01-27

Applicant: LG ELECTRONICS INC.

Inventor： Dongkyu Kim ,  Hyunsoo Ko ,  Kwangseok Noh ,  Sangrim Lee ,  Hojae Lee

IPC: H04L25/03 ,  H04L25/02 ,  H04L27/26 ,  H04B3/32 ,  H04J11/00

Abstract: A method for performing self-interference cancellation by a communication device which uses an FDR mode can comprise the steps of: measuring the strength of a residual self-interference signal, after antenna and analog self-interference cancellation, for each subband with respect to a predetermined number of subbands configured in a communication device; determining the order of a nonlinear self-interference signal component, to be considered for channel estimation of a nonlinear self-interference signal, for each subband on the basis of the strength of the residual self-interference signal that has been measured for each subband; and performing channel estimation of the nonlinear self-interference signal on the basis of the order that has been determined for each subband.

公开(公告)号：US20180139733A1

公开(公告)日：2018-05-17

申请号：US15574776

申请日：2015-06-08

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsoo Ko ,  Kwangseok Noh ,  Dongkyu Kim ,  Sangrim Lee ,  Hojae Lee

IPC: H04W72/04 ,  H04L5/22

CPC classification number: H04W72/042 ,  H04L1/18 ,  H04L1/1854 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/1469 ,  H04L5/22 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/0446

Abstract: The present document relates to a wireless frame structure for implementing a low-delay communication in a next generation wireless communication system, and a communication method and apparatus using same. To this end, a terminal receives downlink data from a base station through a data area of a wireless frame, and sends, to the base station, an acknowledgement signal with respect to the downlink data using an uplink control channel area of the wireless frame. Every sub-frame of the wireless frame includes a downlink control channel area and the uplink control channel area, wherein the downlink control channel area is located within a first certain number of symbol areas starting from the start point of the sub-frame, and the uplink control channel area is located within a second certain number of symbol areas starting from the end point of the sub-frame.

公开(公告)号：US20180139022A1

公开(公告)日：2018-05-17

申请号：US15573072

申请日：2015-10-30

Applicant: LG ELECTRONICS INC.

Inventor： Sangrim Lee ,  Hojae Lee ,  Hyunsoo Ko ,  Kwangseok Noh ,  Dongkyu Kim

IPC: H04L5/00 ,  H04W72/04 ,  H04L25/03 ,  H04W56/00 ,  H04W72/08

CPC classification number: H04L5/0048 ,  H04L5/0005 ,  H04L5/0051 ,  H04L25/03019 ,  H04L27/2607 ,  H04L27/264 ,  H04L27/2646 ,  H04W4/70 ,  H04W56/001 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/082

Abstract: A method and a device for transmitting control information to be used in a terminal are provided. Specifically, an asynchronous level of a terminal supporting an asynchronous transmission mode is measured by using a signal received from the terminal. It is determined whether a measured value of the asynchronous level exceeds a threshold value, and if the asynchronous level is exceeded, a filter length and a CP length, which are to be used in the terminal, are changed. Information on the changed filter length and CP length is transmitted to the terminal. A sum of the filter length and the CP length is fixed, a characteristic of out-of-band emission improves when the filter becomes long in length, and interference occurring due to a multi-path delay can be prevented when the CP length becomes long.