公开(公告)号：US11277842B2

公开(公告)日：2022-03-15

申请号：US16625070

申请日：2018-06-27

Applicant: LG Electronics Inc.

Inventor： Changhwan Park ,  Joonkui Ahn ,  Seunggye Hwang ,  Seokmin Shin ,  Sukhyon Yoon

IPC: H04W72/04 ,  H04L5/00

Abstract: The present invention relates to a wireless communication system and, more particularly, to a method comprising the steps of: generating a first complex symbol sequence corresponding to one time unit including a plurality of transmission symbols; generating a second complex symbol sequence by applying primary scrambling to the first complex symbol sequence on a modulation symbol basis; and repeatedly transmitting the second complex symbol sequence through a plurality of time units, wherein secondary scrambling is applied to the signals in each time unit on a transmission symbol basis, the transmission symbol including an OFDMA symbol or an SC-FDMA symbol; and an apparatus therefor.

公开(公告)号：US11272529B2

公开(公告)日：2022-03-08

申请号：US16633683

申请日：2018-08-10

Applicant: LG Electronics Inc.

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

IPC: H04W4/00 ,  H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04W4/80 ,  H04W80/02 ,  H04W76/27

Abstract: Disclosed are a method for a base station and a UE transmitting/receiving a signal in a wireless communication system, and a device supporting same. According to one embodiment, a method for a UE transmitting/receiving a signal in a wireless communication system comprises the steps of: receiving, from a base station, configuration information about a carrier for one or more channel; and, on the basis of the received configuration information, transmitting and then receiving one or more channel. Therein, the one or more channel comprises at least one among a downlink control channel, a downlink shared channel and an uplink shared channel, and the carrier may be configured differently based on the channel being transmitted therethrough.

公开(公告)号：US20210314995A1

公开(公告)日：2021-10-07

申请号：US17266462

申请日：2019-08-08

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/12 ,  H04W72/04 ,  H04W4/70

Abstract: The present specification provides a method for transmitting an MPDCCH in a wireless communication system supporting MTC. More specifically, the method performed by a base station comprises the steps of: mapping an MPDCCH to resource elements (REs); and transmitting the MPDCCH on the REs to a terminal, wherein the mapping of the MPDCCH comprises a step of copying REs used for the MPDCCH in at least one symbol of a second slot of a subframe onto at least one symbol of a first slot of the subframe.

公开(公告)号：US11129190B2

公开(公告)日：2021-09-21

申请号：US16496370

申请日：2018-03-22

Applicant: LG Electronics Inc.

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

IPC: H04L12/28 ,  H04W74/00 ,  H04W76/27 ,  H04B1/7143 ,  H04L1/18 ,  H04W72/04 ,  H04W72/14 ,  H04W74/08 ,  H04J1/16

Abstract: The present invention relates to a method for performing a random access procedure in a wireless communication system and an apparatus therefor, the method comprising: a step of transmitting, to a base station, a random access preamble, wherein the random access preamble indicates an uplink data transmission in a Msg3 stage of the random access procedure; a step of receiving, from the base station, together with a random access response message including first uplink grant information, second uplink grant information for the uplink data transmission in the Msg3 stage; and a step of transmitting, to the base station, a radio resource control (RRC) connection request message with the first uplink grant information and performing data transmission with the second uplink grant information.

公开(公告)号：US11115965B2

公开(公告)日：2021-09-07

申请号：US16096477

申请日：2016-12-20

Applicant: LG Electronics Inc.

Inventor： Seokmin Shin ,  Hyungtae Kim ,  Kijun Kim ,  Yunjung Yi

IPC: H04W4/00 ,  H04W72/04 ,  H04W48/08 ,  H04W72/12

Abstract: A method for transmitting and receiving data using a non-orthogonal multiple access (NOMA) in a wireless communication system, the method performed by a first user equipment (UE) includes receiving first downlink control information (DCI) including information related to physical downlink shared channel (PDSCH) scheduling of the first UE from a base station, receiving second DCI including information related to PDSCH cancellation of a second UE from the base station, receiving a superposition signal from the base station through a specific resource, and decoding the PDSCH of the first UE by cancelling the PDSCH of the second UE from the superposition signal based on the received second DCI.

公开(公告)号：US10973047B2

公开(公告)日：2021-04-06

申请号：US16490526

申请日：2018-02-28

Applicant: LG Electronics Inc.

Inventor： Joonkui Ahn ,  Sukhyon Yoon ,  Changhwan Park ,  Seokmin Shin ,  Seunggye Hwang

IPC: H04W4/00 ,  H04W72/12 ,  H04W76/10 ,  H04J11/00 ,  H04W48/10 ,  H04W74/08

Abstract: Provided are a method for supporting a variable bandwidth and an apparatus using the same. In the apparatus, a wireless device receives a synchronization signal in a first bandwidth, and acquires a second bandwidth for a downlink (DL) channel on the basis of the synchronization signal. The apparatus receives the DL channel in the second bandwidth.

公开(公告)号：US10972329B2

公开(公告)日：2021-04-06

申请号：US16752561

申请日：2020-01-24

Applicant: LG ELECTRONICS INC.

Inventor： Bonghoe Kim ,  Kijun Kim ,  Hyunsoo Ko ,  Byounghoon Kim ,  Yunjung Yi ,  Seokmin Shin

IPC: H04W56/00 ,  H04L27/26 ,  H04L5/00 ,  H04J11/00 ,  H04W72/04 ,  H04W76/28 ,  H04W76/27 ,  H04B7/06 ,  H04J13/00

Abstract: The present invention provides a method and devices for transmitting and receiving a synchronization signal and a method for generating a synchronization signal in a wireless access system supporting narrowband Internet of Things (NB-IoT). A method for transmitting a primary synchronization signal (PSS) by a base station in a wireless access system supporting narrowband Internet of Things (NB-IoT), according to an embodiment of the present invention, can comprise the steps of: repeatedly generating first sequences n times so as to generate primary synchronization signals; multiplying n first sequences by second sequences and thus generating n primary synchronization signals; and transmitting n primary synchronization signals by means of n OFDM symbols, respectively. The size of a bandwidth used in the wireless access system supporting NB-IoT is the size of one physical resource block (PRB), and one PRB can comprise twelve subcarriers in a frequency domain.

公开(公告)号：US10966187B2

公开(公告)日：2021-03-30

申请号：US16347519

申请日：2017-11-06

Applicant: LG Electronics Inc.

Inventor： Seokmin Shin ,  Daesung Hwang ,  Joonkui Ahn

IPC: H04W72/04 ,  H04J11/00 ,  H04L27/26 ,  H04W28/06 ,  H04W4/70 ,  H04W48/12 ,  H04W72/12

Abstract: Described are a method for transmitting and receiving data in a wireless communication system supporting Machine-Type Communication (MTC) and an apparatus therefor. The method includes: monitoring a first search space configured for an MTC Physical Downlink Control Channel (MPDCCH), in which the first MPDCCH includes first control information for scheduling of a first Physical Downlink shared Channel (PDSCH) for transferring a Single Cell-Multicast Control Channel (SC-MCCH); receiving the first PDSCH based on the first control information; monitoring a second search space configured for a second MPDCCH using a group identifier acquired through the SC-MCCH, in which the second MPDCCH includes second control information for scheduling of a second PDSCH for transferring a Single Cell-Multicast Traffic Channel (SC-MTCH); and receiving the second PDSCH based on the second control information, in which configuration information for a frequency bandwidth used for the second PDSCH may be transferred through the SC-MCCH.

公开(公告)号：US10721777B2

公开(公告)日：2020-07-21

申请号：US16190952

申请日：2018-11-14

Applicant: LG Electronics Inc.

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

IPC: H04W74/08 ,  H04L27/26 ,  H04L5/14 ,  H04L27/00 ,  H04W74/00 ,  H04L5/00

Abstract: A method for transmitting a random access preamble in a narrowband-IoT system supporting time division duplexing and an apparatus therefor. In some implementations, a method for transmitting a narrowband physical random access channel (NPRACH) preamble by a user equipment in a narrowband-Internet of things (NB-IoT) system supporting time division duplexing may include: receiving, from a base station, configuration information related to an uplink-downlink configuration; and transmitting, to the base station, the NPRACH preamble configured by considering the uplink-downlink configuration.

公开(公告)号：US10721775B2

公开(公告)日：2020-07-21

申请号：US16257960

申请日：2019-01-25

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04W52/02 ,  H04W74/00

Abstract: This specification provides a method for performing early data transmission in a random access procedure in a wireless communication system.More specifically, the method performed by a user equipment (UE) includes: receiving, from a base station, a control message including first information indicating whether selection for a second transport size (TBS) smaller than a first TBS for message 3 is permitted and second information for the first TBS; transmitting, to the base station, a request for the EDT by using message 1; receiving, from the base station, message 2 including a UL grant for the message 3; determining a repetition number for the message 3 based on the control message and the UL grant; and transmitting the message 3 to the base station by the repetition number.Therefore, there is an effect that battery consumption of the UE can be reduced.