公开(公告)号：US10404315B2

公开(公告)日：2019-09-03

申请号：US15244695

申请日：2016-08-23

Applicant: LG ELECTRONICS INC.

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

IPC: H04B1/525 ,  H04L5/14 ,  H04B1/48

Abstract: A method for performing self-interference cancellation (SIC) by an apparatus of a full duplex radio (FDR) mode in a wireless communication system including: performing a channel estimation of a received self-interference reference signal; calculating a power value of two order components of a non-linear self-interference signal based on the channel estimation; and establishing a non-linear digital self-interference cancellation order to be considered in the self-interference cancellation based on the power value of each for the two order components.

公开(公告)号：US10367663B2

公开(公告)日：2019-07-30

申请号：US15755413

申请日：2016-05-24

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/24 ,  H04L25/03 ,  H04L25/02 ,  H04L27/26 ,  H04W72/08

Abstract: A method for cancelling self-interference by a base station that uses a full duplex radio (FDR) scheme may comprise the steps of: transmitting, to a terminal, information associated with reference signal (RS) power boosting, which has been changed for estimation of a self-interference channel; transmitting an RS on the basis of the changed RS power boosting; estimating the self-interference channel according to the RS; and cancelling the self-interference on the basis of the estimation of the self-interference channel.

公开(公告)号：US10320493B2

公开(公告)日：2019-06-11

申请号：US15559256

申请日：2016-03-18

Applicant: LG ELECTRONICS INC.

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

IPC: H04B15/02 ,  H04B1/54 ,  H04W52/04 ,  H04B1/525

Abstract: An apparatus for removing self-interference in an environment supporting an FDR method according to the present invention may comprise: an analog self-interference removal unit that is constructed to remove a first analog self-interference by subtracting a self-interference signal received through a first delay circuit connected between an RF transmission chain and an RF reception chain of the apparatus from a self-interference signal received at a first circuit of the RF reception chain of the apparatus, and that is constructed to remove a second analog self-interference by subtracting a self-interference signal received through a second delay circuit connected between the RF transmission chain and the RF reception chain of the apparatus from a self-interference signal received at a second circuit of the RF reception chain of the apparatus; and a processor that is constructed to determine whether the first and the second analog self-interference removals were respectively successful on the basis of the respective residual self-interference signals that are left after removing the first and the second analog self-interferences.

公开(公告)号：US10313096B2

公开(公告)日：2019-06-04

申请号：US15556705

申请日：2015-10-14

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04L5/14 ,  H04L5/16 ,  H04B17/18 ,  H04W88/02 ,  H04W88/08 ,  H04B17/336

Abstract: A method for selecting, by a base station, HD mode or FD mode in a wireless communication system supporting an FDR scheme may comprise: a step of receiving, from a second terminal which receives interference from a first terminal, a value related to the signal to noise ratio (SNR) of the second terminal and a value related to the signal-to-interference-plus-noise ratio (SINR) of the second terminal; a step of measuring the SNR value and the SINR value of the base station; a step of calculating the channel capacity ratio between the HD mode and the FD mode by using the received value related to the SNR of the second terminal, the received value related to the SINR of the second terminal, the measured SNR value of the base station, and the measured SINR value of the base station; and a step of selecting either mode on the basis of the calculated channel capacity ratio between the HD mode and the FD mode.

公开(公告)号：US10312945B2

公开(公告)日：2019-06-04

申请号：US15431700

申请日：2017-02-13

Applicant: LG ELECTRONICS INC.

Inventor： Kwangseok Noh ,  Dongkyu Kim ,  Sangrim Lee ,  Hojae Lee ,  Myeongjin Kim

IPC: H03M13/00 ,  H03M13/29 ,  H04L1/00 ,  H03M13/11

Abstract: Disclosed herein is a concatenated code encoding method for improving a turbo code. The concatenated code encoding method of the present disclosure includes encoding an input signal based on a repetition-accumulation (RA) code as an outer code, adding a tail bit to the encoded input signal, and encoding the encoded input signal based on the a turbo code. The concatenated code encoding method may further include interleaving the encoded input signal after application of the outer code.

公开(公告)号：US10148290B2

公开(公告)日：2018-12-04

申请号：US15091507

申请日：2016-04-05

Applicant: LG ELECTRONICS INC.

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

IPC: H03M13/35 ,  H04L1/00 ,  H03M13/37 ,  H04L1/16

Abstract: A method for decoding a channel code by a communication apparatus in a wireless communication system is disclosed. The method includes determining whether a cyclic redundancy check (CRC) of a block including a codeword having a first quality of service (QoS) has been decoded successfully by decoding the codeword having the first QoS, and if the CRC of the block has been decoded successfully, decoding a first codeword corresponding to the codeword having the first QoS, and determining whether a transport block (TB) CRC has been decoded successfully by checking the TB CRC.

公开(公告)号：US20180316451A1

公开(公告)日：2018-11-01

申请号：US15771638

申请日：2016-07-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04J11/00 ,  H04L5/14 ,  H04L5/00 ,  H04W72/04 ,  H04L25/02

CPC classification number: H04B7/26 ,  H04J11/00

Abstract: A method for a terminal performing communication using a TDD frame in a wireless communication system may comprises the steps of: receiving a first synchronization signal from the first symbol of a first subframe of a TDD frame; receiving a second synchronization signal from the first symbol of a second subframe of the TDD frame; and receiving system information from the first symbol of at least one subframe comprising a third subframe of the TDD frame.

公开(公告)号：US10116332B2

公开(公告)日：2018-10-30

申请号：US15458712

申请日：2017-03-14

Applicant: LG ELECTRONICS INC.

Inventor： Kwangseok Noh ,  Dongkyu Kim ,  Myeongjin Kim ,  Sangrim Lee ,  Hojae Lee

IPC: H03M13/00 ,  H03M13/11 ,  H03M13/09 ,  H04L1/00 ,  H04W88/02 ,  H04L29/08

Abstract: A method and corresponding user equipment (UE) for configuring a circular buffer in a wireless communication system. The method includes: generating a code block including a payload, a first outer code parity, and a second outer code parity from an input signal based on an outer code in a higher layer; generating a codeword from the code block based on an inner code in a physical layer; and configuring a circular buffer including the codeword and one or more second outer code parities. The first outer code parity is generated based on a first portion of the payload, the one or more second outer code parities, to which an encoding is not applied in the physical layer, are generated based on a second portion of the payload, at least a part of the second portion is different from the first portion, the codeword includes the payload, the first outer code parity, and an inner code parity generated from at least part of the code block based on the inner code, and a number of the one or more second outer code parities in the circular buffer is determined according to a maximum size of the codeword or an amount of resources for transmission.

公开(公告)号：US10104627B2

公开(公告)日：2018-10-16

申请号：US15516606

申请日：2016-02-23

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/00 ,  H04W56/00 ,  H04W74/08

Abstract: A method for performing uplink synchronization by a terminal in a millimeter wave (mmWave)-based wireless communication system according to an embodiment of the present invention comprises the steps of: repeatedly transmitting a first type random access preamble through a plurality of coarse beams that are sequentially formed for different directions; performing a first timing advance (TA) adjustment on the basis of a response of a base station with respect to a repeated transmission of the first type random access preamble; and transmitting a second type random access preamble through at least one fine beam having a smaller beam width than the coarse beams, wherein the sequence of the second type random access preamble transmitted after the first TA adjustment is configured to be shorter than the sequence of the first type random access preamble on the time axis.

公开(公告)号：US10091753B2

公开(公告)日：2018-10-02

申请号：US15417022

申请日：2017-01-26

Applicant: LG ELECTRONICS INC.

Inventor： Sangrim Lee ,  Kwangseok Noh ,  Dongkyu Kim ,  Hojae Lee ,  Myeongjin Kim

IPC: H04W56/00 ,  H04L12/26 ,  H04W74/08 ,  H04L27/26 ,  H04W28/02

Abstract: A method of transmitting a signal by adaptively controlling windowing or filtering by a user equipment in a wireless communication system, includes the steps of receiving a message including a timing advance (TA) value from a base station, determining a windowing type or a filtering type corresponding to the TA value, and transmitting an uplink signal to which the determined windowing type is applied. In this case, the windowing type is distinguished according to a length of a valid symbol and the filtering type can be distinguished according to a filter coefficient value.