公开(公告)号：US20210203356A1

公开(公告)日：2021-07-01

申请号：US16065759

申请日：2018-03-30

Applicant: LG Electronics Inc.

Inventor： Ilmu BYUN ,  Jongwoong SHIN ,  Jinwoo KIM ,  Kwangseok NOH ,  Bonghoe KIM

IPC: H03M13/11 ,  H03M13/00

Abstract: A method for performing encoding on the basis of a parity check matrix of a low density parity check code according to the present embodiment comprises the steps of: generating a parity check matrix by a terminal, wherein the parity check matrix corresponds to a characteristic matrix, each component of the characteristic matrix corresponds to a shift index value determined through a modulo operation between a corresponding component in a basic matrix and Zc, which is a lifting value, and the basic matrix is a 42×52 matrix; and performing encoding of input data, by the terminal, using the parity check matrix, wherein the lifting value is associated with the length of the input data.

公开(公告)号：US20210075538A1

公开(公告)日：2021-03-11

申请号：US16958820

申请日：2019-01-11

Applicant: LG Electronics Inc.

Inventor： Kwangseok NOH ,  Bonghoe KIM

IPC: H04L1/00

Abstract: A transmission method or a transmission apparatus maps input information of K+n bits to a polar code, encodes the input information on the basis of the polar code, and transmits the encoded input information. The input information includes n parity check bits. n1 bits of the n parity check bits are mapped to least reliable bit positions of K+n bit positions of the polar code, and n−n1 parity check bits (where n−n1>0) are mapped to n−n1 bit positions having a minimum row weight among K+n−n1 bit positions excluding the n1 least reliable bit positions among the K+n bit positions.

公开(公告)号：US20200304241A1

公开(公告)日：2020-09-24

申请号：US16756069

申请日：2018-11-13

Applicant: LG Electronics Inc.

Inventor： Kwangseok NOH ,  Bonghoe KIM ,  Song-Nam HONG ,  Min-Oh JUNG

IPC: H04L1/18 ,  H04L1/00 ,  H03M13/13 ,  H03M13/00

Abstract: An encoding method on the basis of a polar code in order to support an HARQ according to the present embodiment comprises the steps of: configuring, an input vector for retransmission, which has a length of N and is applied to a mother matrix predetermined on the basis of a polar code, by a wireless device, wherein the input vector is defined on the basis of a first index set for an optimized position of an information bit having a length of K, a second index set for a position of a bit to be punctured among encoded bits generated on the basis of the mother matrix, and a third index set for a position of at least one unknown frozen bit associated with an information copying scheme; and performing encoding on the basis of the input vector and the mother matrix, by the wireless device.

公开(公告)号：US20200186167A1

公开(公告)日：2020-06-11

申请号：US16344260

申请日：2017-07-21

Applicant: LG Electronics Inc.

Inventor： Kwangseok NOH ,  Bonghoe KIM ,  Jinwoo KIM ,  Ilmu BYUN ,  Jongwoong SHIN ,  Seunggye HWANG

IPC: H03M13/11 ,  H03M13/15 ,  H03M13/25 ,  H04L1/00

Abstract: Disclosed are a method for dividing a carrying block of a Low Density Parity Check (LDPC) code and an apparatus therefor. The method for dividing a LDPC code of the present disclosure can obtain a high throughput by using a limited size of shifting network. Moreover, it is possible to prevent degradation in performance due to a minimum size of code block by performing shortening for a large size of code block while minimizing the number of code blocks. Furthermore, in selection of a minimum size of code block, since a minimum size of code block is selected on the basis of shortening for a relatively large size of code block, it is possible to increase the size of the minimum size of code block.

公开(公告)号：US20200163090A1

公开(公告)日：2020-05-21

申请号：US16301704

申请日：2017-01-20

Applicant: LG ELECTRONICS INC.

Inventor： Dongkyu KIM ,  Kwangseok NOH ,  Sangrim LEE ,  Hojae LEE

IPC: H04W72/08 ,  H04L5/14 ,  H04L5/00

Abstract: A method for receiving resource allocation information by a user equipment in a wireless communication system, the method comprising receiving, from a base station, control information including downlink resource allocation information and an indicator indicating downlink resource allocation for the user equipment operating in Full Duplex Radio (FDR) mode, wherein the downlink resource allocation information indicates at least one first Resource Block Group (RBG) index, each of the at least one RBG index corresponding to a plurality of non-contiguous Physical Resource Block (PRB) indexes in a frequency domain, and receiving, from the base station, downlink data based on the downlink resource allocation information and based on the indicator.

公开(公告)号：US20200053789A1

公开(公告)日：2020-02-13

申请号：US16342793

申请日：2017-08-08

Applicant: LG Electronics Inc.

Inventor： Sangrim LEE ,  Hojae LEE ,  Dongkyu KIM ,  Myeongjin KIM ,  Kwangseok NOH

IPC: H04W74/08 ,  H04W74/00

Abstract: A method for performing, by a terminal, a contention-based uplink transmission in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: selecting any one of a plurality of codewords and any one of a plurality of demodulation reference signals (DMRS), the plurality of codewords and the plurality of DMRSs being set in a contention resource area for a contention-based uplink transmission; and transmitting, through the contention resource area, uplink data that corresponds to the selected codeword, and the selected DMRS, wherein the DMRS is transmitted in an orthogonal multiple access (OMA) scheme, the uplink data is transmitted in a non-orthogonal multiple access (NOMA) scheme, and the selected DMRS is one of the K DMRSs mapped to the selected codeword, wherein K may be an integer greater than or equal to 1, which is changed according to a DMRS collision occurring in the contention resource area.

公开(公告)号：US20190245664A1

公开(公告)日：2019-08-08

申请号：US16344228

申请日：2017-05-08

Applicant: LG Electronics Inc.

Inventor： Myeongjin KIM ,  Sangrim LEE ,  Hojae LEE ,  Dongkyu KIM ,  Kwangseok NOH

IPC: H04L5/00 ,  H04W72/04 ,  H04W8/18

Abstract: According to one embodiment, a method by which a terminal transmits a signal in a wireless communication system on the basis of a contention-based non-orthogonal NOMA scheme can be provided, wherein the method for transmitting the signal can comprise the steps of: allocating a resource pool to which a signal is to be transmitted on the basis of the contention-based NOMA scheme; and transmitting data and a UE ID through the resource pool on the basis of the contention-based NOMA scheme, wherein a plurality of UE ID regions exist in the resource pool, and the UE ID can be allocated to a first region, which is one of the plurality of UE ID regions, and then transmitted.

公开(公告)号：US20190109652A1

公开(公告)日：2019-04-11

申请号：US16086300

申请日：2016-07-27

Applicant: LG ELECTRONICS INC.

Inventor： Dongkyu KIM ,  Kwangseok NOH ,  Sangrim LEE ,  Hojae LEE

IPC: H04B15/02 ,  H04L5/14 ,  H04J11/00

Abstract: A communication apparatus for eliminating a self-interference signal in an FDR environment comprises: a distributor for distributing signals from a transmission chain to a plurality of lines in a receiving chain; a first self-interference signal replicating unit for generating a self-interference replica signal of a signal distributed to a first line from among the plurality of lines by the distributor; a second self-interference signal replicating unit for generating a self-interference replica signal of a signal distributed to a second line from among the plurality of lines by the distributor; and a self-interference eliminating unit for eliminating self-interference by deducting, from the signals distributed by the distributor, a signal generated by the first self-interference signal replicating unit and a signal generated by the second self-interference signal replicating unit.

公开(公告)号：US20190090272A1

公开(公告)日：2019-03-21

申请号：US16082258

申请日：2017-03-06

Applicant: LG ELECTRONICS INC.

Inventor： Hojae LEE ,  Sangrim LEE ,  Dongkyu KIM ,  Kwangseok NOH ,  Kijun KIM

IPC: H04W74/08 ,  H04W72/04 ,  H04L1/00 ,  H04L27/26 ,  H04W74/00

CPC classification number: H04W74/085 ,  H04L1/0068 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2678 ,  H04W72/0453 ,  H04W74/004

Abstract: A method by which a terminal transmits a random access channel (RACH) signal in a wireless communication system comprises the step of transmitting the RACH signal to a base station according to an RACH format corresponding to a specific RACH subframe among previously defined RACH formats, wherein the method is configured such that a start point or an end point of the RACH signal in a time domain is differentiated according to whether a downlink control zone and an uplink control zone within the RACH subframe are punctured in a specific frequency band between the previously defined RACH formats.

公开(公告)号：US20180248677A1

公开(公告)日：2018-08-30

申请号：US15755045

申请日：2016-01-27

Applicant: LG ELECTRONICS INC.

Inventor： Sangrim LEE ,  Dongkyu KIM ,  Hyunsoo KO ,  Kwangseok NOH ,  Hojae LEE

IPC: H04L5/14 ,  H04L5/00

CPC classification number: H04L5/1461 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0062 ,  H04L5/0085 ,  H04L5/0091 ,  H04L25/0204 ,  H04L25/0226 ,  H04L27/26 ,  H04L27/261

Abstract: A method for a device changing a RS mode, the device operating by a FDR scheme, comprises the steps of: deciding to change from a first RS mode to a second RS mode if a preset condition is satisfied; and transmitting information related to the decided second RS mode to a terminal, wherein the first RS mode and the second RS mode may be distinguished from each other by whether RSs which are added in order to channel estimate a non-linear component of a self-interference signal are transmitted or not.