公开(公告)号：US20210274526A1

公开(公告)日：2021-09-02

申请号：US17267491

申请日：2019-08-08

Applicant: LG ELECTRONICS INC.

Inventor： Seokmin SHIN ,  Seonwook KIM ,  Changhwan PARK ,  Hanjun PARK ,  Joonkui AHN ,  Suckchel YANG ,  Seunggye HWANG

IPC: H04W72/12 ,  H04W76/27

Abstract: According to an embodiment of the present disclosure, a method for transmitting, by a user equipment (UE), uplink data in a wireless communication system supporting a narrowband Internet of things (NB-IoT) system includes: receiving information related to a preconfigured uplink (UL) resource (PUR) for transmitting the uplink data in an RRC connected state; and transmitting the uplink data by using the preconfigured uplink resource (PUR) in an RRC idle state. In the transmitting of the uplink data, when the preconfigured UL resource (PUR) is a dedicated resource and there is no data to be transmitted in the preconfigured UL resource (PUR), transmission of the uplink data is skipped.

公开(公告)号：US20210219284A1

公开(公告)日：2021-07-15

申请号：US17214285

申请日：2021-03-26

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：US20210203538A1

公开(公告)日：2021-07-01

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：US20210176788A1

公开(公告)日：2021-06-10

申请号：US16762748

申请日：2018-11-08

Applicant: LG Electronics Inc.

Inventor： Seokmin SHIN ,  Changhwan PARK ,  Joonkui AHN ,  Suckchel YANG ,  Seunggye HWANG

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/04

Abstract: The present specification provides a method for transmitting, by a terminal, a message for execution of a random access procedure in a wireless communication system, the method comprising the steps of: receiving a system information block (SIB) from a base station; transmitting a first message, which is a random access preamble, to the base station on the basis of the SIB; receiving a second message, which is a response to the first message, from the base station; and transmitting a third message to the base station, using a carrier different from a carrier used to transmit the first message.

公开(公告)号：US20210111824A1

公开(公告)日：2021-04-15

申请号：US16496382

申请日：2018-03-22

Applicant: LG Electronics Inc.

Inventor： Changhwan PARK ,  Seokmin SHIN ,  Joonkui AHN ,  Seunggye HWANG

IPC: H04J11/00

Abstract: The present invention provides a method for a terminal operating by means of utilizing a defined synchronization signal in a wireless communication system supporting narrow band-Internet of Things (NB-IoT), and a device for supporting same.

公开(公告)号：US20210014027A1

公开(公告)日：2021-01-14

申请号：US17036800

申请日：2020-09-29

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：US20200260495A1

公开(公告)日：2020-08-13

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：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：US20200153588A1

公开(公告)日：2020-05-14

申请号：US16730766

申请日：2019-12-30

Applicant: LG ELECTRONICS INC.

Inventor： Seunggye HWANG ,  Yunjung YI ,  Kijun KIM

IPC: H04L5/00

Abstract: According to an aspect of the present invention, a method for transmitting a Demodulation Reference Signal (DMRS) performed by a terminal in a wireless communication system that supports a Narrow Band (NB)-Internet of Things (IoT) includes generating a DMRS sequence by considering a single subcarrier transmission or a multiple subcarrier transmission; mapping the generated DMRS sequence to one or more symbols in time domain; and transmitting the DMRS to a base station through the mapped symbols, where each element of the generated DMRS sequence is sequentially mapped to each symbol of M symbols, when the DMRS is transmitted through the single subcarrier, and where the generated DMRS sequence is mapped to N symbols, when the DMRS is transmitted through the multiple sub carriers.

公开(公告)号：US20190363920A1

公开(公告)日：2019-11-28

申请号：US16535551

申请日：2019-08-08

Applicant: LG ELECTRONICS INC.

Inventor： Seunggye HWANG ,  Joonkui AHN ,  Changhwan PARK ,  Suckchel YANG ,  Seokmin SHIN

IPC: H04L27/26 ,  H04L12/46 ,  H04L5/22 ,  H04L5/14 ,  H04L5/00 ,  H04L1/00 ,  H04W4/70

Abstract: One disclosure of the present specification proposes a method for receiving a Narrowband Reference Signal (NRS) by a Narrow band Internet of Things (NB-IoT) device. The method may comprise receiving the NRS on at least one or more orthogonal frequency division multiplexing (OFDM) symbols. The one or more OFDM symbols are in a time division duplex (TDD) subframe. If the TDD subframe corresponds to a TDD special subframe, the one or more OFDM symbols for receiving the NRS is determined based on which TDD special subframe configuration index among a plurality of TDD special configuration indexes is used by the TDD special subframe.