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：US20190053243A1

公开(公告)日：2019-02-14

申请号：US16077317

申请日：2016-11-23

Applicant: LG ELECTRONICS INC.

Inventor： Sangrim LEE ,  Jaehoon CHUNG ,  Hojae LEE

IPC: H04W72/04 ,  H04L5/14 ,  H04L1/18

Abstract: A method for receiving, by a terminal, a signal in a wireless communication system comprises: a step of receiving, from a base station, information indicating a subframe configuration type of subframes bundled into a plurality of subframe units; and a step of receiving, from the base station, a signal of a service corresponding to the indicated subframe configuration type in the bundled subframes, wherein the subframe configuration type of the bundled subframes is determined on the basis of the characteristics of the service to be provided from the bundled subframes.

公开(公告)号：US20180317260A1

公开(公告)日：2018-11-01

申请号：US15735586

申请日：2015-11-05

Applicant: LG ELECTRONICS INC.

Inventor： Sangrim LEE ,  Bonghoe KIM ,  Hyunsoo KO ,  Yunjung YI ,  Hojae LEE

IPC: H04W74/08 ,  H04W72/04

CPC classification number: H04W74/0833 ,  H04W72/04 ,  H04W72/0413 ,  H04W72/0446 ,  H04W74/08

Abstract: A method and a device for performing a random access in a wireless communication system are provided. Specifically, a wireless resource for transmitting a first random access request is selected, and the first random access request is transmitted through the wireless resource. The first random access request includes a transmission period of the first random access request, the frequency of retransmission, and an allowable error of the transmission period. Uplink resource allocation information is received in response to the first random access request. The uplink resource allocation information includes information on an indicator bit and a wireless resource shift. When the indicator bit is a preset value, a second random access request is transmitted through a wireless resource shifted from the wireless resource.

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.

公开(公告)号：US20180227069A1

公开(公告)日：2018-08-09

申请号：US15699511

申请日：2017-09-08

Applicant: LG ELECTRONICS INC.

Inventor： Sangrim LEE ,  Hojae LEE

IPC: H04J11/00 ,  H04L25/02 ,  H04W76/04 ,  H04W74/08

CPC classification number: H04J11/0023 ,  H04L5/0007 ,  H04L5/005 ,  H04L25/0202 ,  H04L25/0236 ,  H04L25/03 ,  H04L27/205 ,  H04W72/0406 ,  H04W74/0833 ,  H04W76/27

Abstract: In an aspect of the present invention, provided is a method for receiving an uplink signal by a base station (BS) in a wireless communication system where a reference signal is not used, including: obtaining information bits by demodulating and decoding a signal of a first user equipment (UE) that is modulated through a differential modulation scheme; estimating a channel between the first UE and the BS using the information bits; and performing successive interference cancellation (SIC) using the signal of the first UE restored through the channel estimation results and the information bits. In this case, the BS may estimate the channel between the first UE and the BS by assuming that an Nth modulation symbol among modulation symbols of the information bits modulated through the differential modulation scheme is fixed to a predetermined constellation point.

公开(公告)号：US20180167239A1

公开(公告)日：2018-06-14

申请号：US15577656

申请日：2016-05-26

Applicant: LG ELECTRONICS INC.

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

IPC: H04L25/03 ,  H04L5/14 ,  H04L1/20 ,  H04B7/0413

Abstract: A method for performing self-interference cancellation by a device using an FDR mode comprises a step for performing nonlinear digital self-interference cancellation on the basis of a condition defined for the nonlinear digital self-interference cancellation, wherein the defined condition can comprise information about the order of a self-interference component to be considered for the nonlinear digital self-interference cancellation in correspondence with transmission power of the device.

公开(公告)号：US20180160432A1

公开(公告)日：2018-06-07

申请号：US15578512

申请日：2016-01-26

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/08 ,  H04W72/04 ,  H04L5/00 ,  H04L5/14

CPC classification number: H04W72/082 ,  H04B1/525 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0094 ,  H04L5/14 ,  H04L25/02 ,  H04L25/03 ,  H04W72/044

Abstract: A method for transmitting reference signal (RS) allocation mode information by a device operating in a full duplex radio (FDR) mode comprises the steps of: determining to change an RS allocation mode from a first RS allocation mode to a second RS allocation mode for nonlinear component estimation of a residual self-interference signal after antenna and analog self-interference cancellation; and transmitting information about the changed second RS allocation mode to a counterpart node, wherein the first RS allocation mode and second RS allocation mode are distinguished from each other on the basis of whether or not RSs, used for nonlinear component estimation of the residual self-interference signal, are additionally transmitted.

公开(公告)号：US20180041988A1

公开(公告)日：2018-02-08

申请号：US15555010

申请日：2016-04-25

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/02 ,  H04W72/04 ,  H04W56/00

CPC classification number: H04W72/02 ,  H04J11/0036 ,  H04L1/0001 ,  H04L1/1854 ,  H04L5/0014 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0055 ,  H04L5/0069 ,  H04L5/008 ,  H04L5/0091 ,  H04W4/70 ,  H04W56/00 ,  H04W56/001 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446

Abstract: A method for supporting a sporadic high-capacity packet service by a terminal may comprise the steps of: receiving, from a base station, control information including pre-defined timing information for synchronization and resource allocation information associated with the terminal; when uplink traffic occurs, performing transmission synchronization on the basis of the pre-defined timing information for synchronization; selecting a resource for uplink data transmission on the basis of the resource allocation information; and transmitting uplink data through the selected resource.

公开(公告)号：US20170279464A1

公开(公告)日：2017-09-28

申请号：US15466355

申请日：2017-03-22

Applicant: LG ELECTRONICS INC.

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

IPC: H03M13/25 ,  H03M13/09 ,  H03M13/11

CPC classification number: H03M13/09 ,  H03M13/116 ,  H03M13/2906 ,  H03M13/353 ,  H03M13/6525

Abstract: A method of low-density parity check (LDPC) code encoding and an apparatus therefor are disclosed. The LDPC code encoding method includes determining whether code block cyclic redundancy check (CRC) is attached to a code block based on a channel state or a required error rate. Signal overhead is reduced via selective application of the code block CRC.

公开(公告)号：US20250038846A1

公开(公告)日：2025-01-30

申请号：US18715054

申请日：2022-11-29

Applicant: LG ELECTRONICS INC.

Inventor： Byungkyu AHN ,  Sangrim LEE ,  Hojae LEE ,  JaYeong KIM

IPC: H04B10/079 ,  H04B10/70 ,  H04L9/08

Abstract: The present disclosure relates to a quantum communication system. Particularly, the present disclosure relates to a device and a method for performing two-step quantum secure direct communication (QSDC) with a reduced complexity without measuring a quantum memory and a bell state of a receiver in a quantum communication system.