公开(公告)号：US11444815B2

公开(公告)日：2022-09-13

申请号：US16970214

申请日：2019-02-14

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyung Kim ,  Seunggye Hwang ,  Suckchel Yang

IPC: H04L27/26 ,  H04L27/20

Abstract: The present specification provides a method by which a terminal transmits an uplink signal in a wireless communication system. Particularly, the terminal scrambles a plurality of bits for transmission of an uplink signal, and generates a plurality of complex symbols by modulating the plurality of bits according to a specific modulation method. In addition, the terminal repetitively performs, a predetermined number of times, discrete Fourier transform (DFT) and inverse fast Fourier transform (IFFT) on at least one complex symbol of the plurality of complex symbols, and transmits the uplink signal, which is generated through the DFT and IFFT, to a base station, wherein the at least one complex symbol has a phase value which is increased or reduced as much as a specific value according to a symbol index.

公开(公告)号：US11425655B2

公开(公告)日：2022-08-23

申请号：US17562476

申请日：2021-12-27

Applicant: LG Electronics Inc.

Inventor： Inkwon Seo ,  Joonkui Ahn ,  Changhwan Park ,  Seunggye Hwang

IPC: H04W4/00 ,  H04W52/02 ,  H04W72/04

Abstract: Provided are a PDCCH monitoring method and device of a DRX-configured terminal in a wireless communication system. In the method, if a monitoring occasion is present in a monitoring window for monitoring DCI (WUS) comprising a wake-up indication, the WUS is monitored in the monitoring occasion and, if the WUS is detected, the relevant operation is performed in a DRX ON duration on the basis of same. The WUS can indicate whether or not to wake up from a plurality of DRX cycles. Also, the WUS can indicate various configurations in accordance with the length of the DRX cycles. If the monitoring occasion is not present in the monitoring window, the terminal wakes up from a DRX cycle linked to the monitoring occasion and performs PDCCH monitoring for a general DCI detection not comprising a wake-up indication.

公开(公告)号：US11184908B2

公开(公告)日：2021-11-23

申请号：US16638032

申请日：2018-08-10

Applicant: LG Electronics Inc.

Inventor： Changhwan Park ,  Seonwook Kim ,  Seokmin Shin ,  Joonkui Ahn ,  Suckchel Yang ,  Seunggye Hwang

IPC: H04W72/12 ,  H04W4/80 ,  H04W72/04 ,  H04W4/02 ,  H04W4/70 ,  H04L27/26 ,  H04L5/00

Abstract: The present invention relates to a wireless communication system, and specifically, to a method and a device therefor, the method comprising the steps of: repeatedly receiving a PDCCH including scheduling information, wherein the scheduling information includes time delay information; and repeatedly transmitting a PUSCH indicated by the scheduling information, after a time point indicated by the time delay information from the time point when the repeated receiving of the PDCCH ends, wherein a time resource in a time region includes a fixed DL time unit having a transmission direction fixed to a DL, and a time resource includes a fixed uplink (UL) time unit having a transmission direction fixed to a UL, and a floating time unit having a variable transmission direction, and the time point indicated by the time delay information is calculated on the basis of the fixed UL time unit.

公开(公告)号：US11166322B2

公开(公告)日：2021-11-02

申请号：US16637645

申请日：2018-08-09

Applicant: LG Electronics Inc.

Inventor： Jaehyung Kim ,  Changhwan Park ,  Joonkui Ahn ,  Seokmin Shin ,  Suckchel Yang ,  Seunggye Hwang

IPC: H04W74/08 ,  H04W74/00

Abstract: The present invention relates to a method for performing, by a terminal, a random access process in a wireless communication system supporting first and second preamble formats, and an apparatus therefor. Particularly, the present invention relates to a method comprising: a step of receiving narrowband physical random access channel (NPRACH) configuration information; and a step of transmitting a random access preamble on the basis of a preamble format indicated by the NPRACH configuration information of the first and second preamble formats, wherein the length of one symbol of the second preamble format corresponds to three times the length of one symbol of the first preamble format, and the first preamble format has a frequency grid spacing of 3.75 kHz, and the second preamble format has a frequency grid spacing of 1.25 kHz, and to an apparatus therefor.

公开(公告)号：US11116005B2

公开(公告)日：2021-09-07

申请号：US16623318

申请日：2018-06-25

Applicant: LG Electronics Inc.

Inventor： Seokmin Shin ,  Changhwan Park ,  Joonkui Ahn ,  Daesung Hwang ,  Seunggye Hwang

IPC: H04W4/00 ,  H04W74/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04W74/08

Abstract: The present specification provides a method for transmitting a narrowband physical random access channel (NPRACH) preamble in a narrow band (NB)-Internet of things (IoT) system supporting a frame structure type 2.
More specifically, the method performed by a user equipment includes receiving, from a base station, control information related to an uplink-downlink configuration; and transmitting, to the base station, the NPRACH preamble based on parameters related to a NPRACH preamble transmission related to the received control information.

公开(公告)号：US11050518B2

公开(公告)日：2021-06-29

申请号：US16491670

申请日：2018-03-08

Applicant: LG Electronics Inc.

Inventor： Changhwan Park ,  Seonwook Kim ,  Hanjun Park ,  Joonkui Ahn ,  Suckchel Yang ,  Seunggye Hwang

IPC: H04L1/18 ,  H04L1/16 ,  H04L5/00

Abstract: Disclosed are a method for transmitting and receiving a signal between a terminal and a base station in a wireless communication system and an apparatus for supporting the same. More particularly, disclosed is an explanation for a method of transmitting and receiving a signal between a terminal and a base station according to a new HARQ procedure which differs from a Hybrid Automatic Repeat reQuest (HARQ) procedure supported in a conventional wireless communication system.

公开(公告)号：US11039447B2

公开(公告)日：2021-06-15

申请号：US16828607

申请日：2020-03-24

Applicant: LG Electronics Inc.

Inventor： Seunggye Hwang ,  Changhwan Park ,  Joonkui Ahn

IPC: H04W72/04 ,  H04W68/02

Abstract: The present invention relates to a method for receiving a downlink signal and an apparatus therefor. Specifically, the method for receiving a downlink signal comprises the steps of: receiving first time offset information and second time offset information from a base station, wherein the first time offset information and the second time offset information each indicate the time offset between the reception time of a specific signal and the reception time of a specific channel associated with the specific signal, and the first time offset information is set to have a length shorter than that of the second time offset information; and monitoring the specific signal at a time position determined on the basis of one of the first time offset information and the second time offset information, wherein the one offset information is determined on the basis of the capability of a user device.

公开(公告)号：US11038655B2

公开(公告)日：2021-06-15

申请号：US15930694

申请日：2020-05-13

Applicant: LG Electronics Inc.

Inventor： Suckchel Yang ,  Kijun Kim ,  Seonwook Kim ,  Changhwan Park ,  Joonkui Ahn ,  Hanjun Park ,  Seunggye Hwang

IPC: H04L5/00 ,  H04L1/16 ,  H04L1/18 ,  H04W76/27 ,  H04L1/00

Abstract: The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for receiving information on a number N of a code block group defined for one transport block from a base station through an upper layer signal, receiving a first transport block including a plurality of code blocks from the base station through a physical layer channel, and transmitting HARQ-ACK payload including HARQ-ACK information on the first transport block to the base station. Preferably, a code block-based CRC is attached to each of the code blocks, a transport block-based CRC is attached to the first transport block, and the HARQ-ACK payload includes a plurality of HARQ-ACK bits corresponding to M code block groups for the first transport block.

公开(公告)号：US11005687B2

公开(公告)日：2021-05-11

申请号：US16487424

申请日：2017-02-21

Applicant: LG ELECTRONICS INC.

Inventor： Kukheon Choi ,  Suckchel Yang ,  Kyuhwan Kwak ,  Seonwook Kim ,  Jinyong Choi ,  Daesung Hwang ,  Seunggye Hwang

IPC: H04L25/02 ,  H04L5/00 ,  H04W16/28 ,  H04W72/04

Abstract: A method for transmitting a sounding reference symbol (SRS) by a terminal in a wireless communication system can comprise the steps of: receiving, from a base station, control information comprising a first indicator for indicating localized SRS transmission; and transmitting a localized SRS in a particular symbol on the basis of the first indicator.

公开(公告)号：US10965430B2

公开(公告)日：2021-03-30

申请号：US16347177

申请日：2017-10-26

Applicant: LG ELECTRONICS INC.

Inventor： Seunggye Hwang ,  Joonkui Ahn ,  Suckchel Yang ,  Seonwook Kim ,  Changhwan Park ,  Daesung Hwang

IPC: H04L5/00 ,  H04L1/18 ,  H04L27/36 ,  H04L29/08 ,  H04W72/14

Abstract: A disclosure of the present specification provides a method for transmitting a hybrid automatic repeat request (HARQ) ACK/NACK signal in a narrowband Internet of things (NB-IoT) communication. The method may comprise a step of modulating at least one of a first and a second HARQ ACK/NACK signal by two HARQ processes. The step of modulating may comprise a step of mapping at least one of the first and the second HARQ ACK/NACK signal onto a constellation having a quadrature phase shift keying (QPSK) form. The first HARQ ACK/NACK signal may be a signal generated by a first HARQ process for a first downlink data through a first narrowband physical downlink shared channel (NPDSCH). The second HARQ ACK/NACK signal may be a signal generated by a second HARQ process for a second downlink data through a second NPDSCH.