公开(公告)号：US10771205B2

公开(公告)日：2020-09-08

申请号：US16323586

申请日：2017-07-27

Applicant: LG Electronics Inc.

Inventor： Hojae Lee ,  Sangrim Lee ,  Kijun Kim ,  Byounghoon Kim

IPC: H04L5/00 ,  H04L27/18 ,  H04L27/34 ,  H04J13/00 ,  H04J13/10 ,  H04J13/16 ,  H04W72/04

Abstract: A method and a device for performing communication by using a non-orthogonal code multiple access scheme in a wireless communication system are provided. Particularly, a terminal receives control information from a base station. The terminal modulates or demodulates a terminal-specific NCC on the basis of the control information. The terminal performs the non-orthogonal code multiple access scheme by using the terminal-specific NCC. The control information includes information on a codeword composed of a Grassmannian sequence. The codeword is included in a codebook predefined for the non-orthogonal code multiple access scheme. Each coefficient of the Grassmannian sequence is quantized on the basis of an M-quadrature amplitude modulation (M-QAM) constellation.

公开(公告)号：US10763975B2

公开(公告)日：2020-09-01

申请号：US16316021

申请日：2016-07-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04B15/02 ,  H04B7/06 ,  H04B7/0413 ,  H04B7/08 ,  H04B15/04 ,  H04B1/525 ,  H04L5/14

Abstract: A method by which a base station reduces an operation for removing self-interference in an FDR environment can comprise the steps of receiving estimated channel state information from a terminal, determining a beam forming value for transmission beamforming on the basis of the received channel state information, and transmitting a downlink signal by applying the determined beamforming value.

公开(公告)号：US10756867B2

公开(公告)日：2020-08-25

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 ,  H04L27/26 ,  H04W88/02

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：US10707990B2

公开(公告)日：2020-07-07

申请号：US15580538

申请日：2015-06-10

Applicant: LG ELECTRONICS INC.

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

IPC: H04L1/00 ,  H04L1/16 ,  H03M13/35 ,  H03M13/00 ,  H04L5/06 ,  H03M13/09 ,  H03M13/27 ,  H03M13/11 ,  H03M13/29 ,  H04W4/40 ,  H04W4/06 ,  H04L1/18 ,  H03M13/23 ,  H03M13/39

Abstract: The present invention relates to a method for performing channel encoding by a transmitting end in a wireless communication system. Particularly, the method comprises the steps of: transmitting, to a receiving end, a configuration indicating a plurality of channel coding configurations; performing channel encoding using a first channel coding configuration among the plurality of channel coding configurations; and performing reconfiguration from the first channel coding configuration to a second channel coding configuration according to a change in system requirements, wherein the plurality of channel coding configurations comprise channel coding configurations, each comprising at least one channel code concatenated differently according to the system requirements.

公开(公告)号：US10575287B2

公开(公告)日：2020-02-25

申请号：US15751151

申请日：2016-07-29

Applicant: LG ELECTRONICS INC.

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

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

Abstract: A method for a terminal transmitting a PUCCH using a FDD frame in a wireless communication system comprises the step of transmitting the PUCCH using two subframes in the FDD frame, wherein the two subframes may each comprise a resource for receiving a downlink in an uplink band.

公开(公告)号：US10548115B2

公开(公告)日：2020-01-28

申请号：US15756017

申请日：2016-07-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04L25/03 ,  H04L27/26 ,  H04L5/00 ,  H04J11/00 ,  H04W72/12 ,  H04L25/02

Abstract: A method for a terminal to transmit signals on the basis of a non-orthogonal multiple access scheme in a wireless communication system may comprise the steps of: receiving, from a base station, information about a codebook selected for the terminal in pre-defined non-orthogonal codebooks and control information including information about a codeword selected from the selected codebook; performing resource mapping on uplink data to be transmitted on the basis of information about the selected codebook and information about the codeword selected from the selected codebook; transmitting, to the base station, the uplink data mapped to the resource according to the resource mapping.

公开(公告)号：US20190356423A1

公开(公告)日：2019-11-21

申请号：US16475776

申请日：2017-01-04

Applicant: LG Electronics Inc.

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

IPC: H04L1/18 ,  H04W72/04 ,  H04L5/00 ,  H04L1/00

Abstract: A method in which a terminal performs a HARQ operation in a NoMA-based system comprises a step of receiving a downlink control information (dci) format comprising a multiple access (MA) signature field for supporting NoMA transmission; a step of receiving downlink data based on a value of the MA signature indicated by the MA signature field; and a step of transmitting an ACK/NACK signal with respect to the downlink data based on a subframe offset value, a frequency offset value, or a sequence index value, which are tied with the indicated value of the MA signature according to a predefined rule, wherein the subframe offset value comprises the subframe offset value between a reception subframe of the downlink data and a downlink HARQ feedback transmission subframe with respect to the downlink data, and wherein the frequency offset value indicates a frequency band used for transmitting the ACK/NACK signal.

公开(公告)号：US20190281619A1

公开(公告)日：2019-09-12

申请号：US16345017

申请日：2017-01-31

Applicant: LG Electronics Inc.

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

IPC: H04W72/12 ,  H04W72/04

Abstract: A method by which a terminal transmits a scheduling request (SR) in a wireless communication system, according to the present invention, comprises the steps of: receiving information on periodicity of SR transmission and a resource region for periodical SR transmission; receiving downlink control information (DCI) which includes a field related to an SR transmission region in a first subframe; and confirming whether the resource for the SR transmission of the terminal is allocated in the first subframe, even if the first subframe is not the subframe for the periodical SR transmission of the terminal, according to the periodicity of the SR transmission, when a SR field indicates a specific value.

公开(公告)号：US10320542B2

公开(公告)日：2019-06-11

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 ,  H04L25/03 ,  H04W56/00 ,  H04W72/04 ,  H04W72/08 ,  H04L27/26 ,  H04W4/70

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.

公开(公告)号：US10298353B2

公开(公告)日：2019-05-21

申请号：US15699511

申请日：2017-09-08

Applicant: LG ELECTRONICS INC.

Inventor： Sangrim Lee ,  Hojae Lee

IPC: H04W74/08 ,  H04W24/02 ,  H04J11/00 ,  H04L25/02 ,  H04W76/27 ,  H04L5/00 ,  H04L25/03 ,  H04L27/20 ,  H04W72/04

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.