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：US20190081841A1

公开(公告)日：2019-03-14

申请号：US16081385

申请日：2017-02-06

Applicant: LG ELECTRONICS INC.

Inventor： Kijun KIM ,  Eunsun KIM ,  Suckchel YANG ,  Sangrim LEE

IPC: H04L27/26 ,  H04L5/00 ,  H04W72/04

Abstract: Disclosed are a method for transmitting and receiving, between a terminal and a base station, a control channel including control information, and a device for supporting the same. Particularly, disclosed in the present invention are: a method for transmitting and receiving a control channel, if a subcarrier spacing or fast Fourier transform (FFT) size of the control channel including control information is different from the subcarrier spacing or FFT size of a data channel including data; and a device for supporting the same.

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.