公开(公告)号：US10050663B1

公开(公告)日：2018-08-14

申请号：US15629524

申请日：2017-06-21

Applicant: LG ELECTRONICS INC.

Inventor： Gwanmo Ku ,  Sangrim Lee ,  Dongkyu Kim ,  Sangwook Han

IPC: H04B1/525 ,  H04W52/02 ,  H04L5/14 ,  H04B1/04 ,  H04B1/48

Abstract: A method of a UE for canceling a self-interference (SI) signal in a wireless communication system is disclosed. The method comprises the steps of generating a signal related to transmission data by means of a UE operating in a full duplex radio (FDR) mode; transmitting the signal related to transmission data; receiving a signal related to reception data by means of the UE; and canceling the SI signal on the basis of the signal related to transmission data and the signal related to reception data. In this case, a cancellation signal is further generated from the signal related to transmission data on the basis of a previously set value of a power amplifier (PA), and the SI signal is canceled by further reflecting the generated cancellation signal.

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.