公开(公告)号：US10939270B2

公开(公告)日：2021-03-02

申请号：US16299606

申请日：2019-03-12

Applicant: LG Electronics Inc.

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

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

Abstract: Various embodiments provide a method for transceiving a signal by a terminal and a base station in a wireless communication system and a device supporting same.

公开(公告)号：US10813141B2

公开(公告)日：2020-10-20

申请号：US16541879

申请日：2019-08-15

Applicant: LG Electronics Inc.

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

IPC: H04W74/08 ,  H04W16/14 ,  H04W74/00

Abstract: This specification provides a method for transmitting an NPRACH preamble in a wireless communication system supporting TDD. More specifically, the method performed by the UE includes: receiving, from a base station, NPRACH configuration information including control information for a repetition number of NPRACH preambles including symbol groups through a higher layer signaling; and transmitting, to the base station, the NPRACH preamble repeatedly through frequency hopping of a symbol group based on the NPRACH configuration information, in which a frequency location of the symbol group is determined based on a first parameter related to a start subcarrier and a second parameter related to the frequency hopping.

公开(公告)号：US10680789B2

公开(公告)日：2020-06-09

申请号：US16360407

申请日：2019-03-21

Applicant: LG Electronics Inc.

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

IPC: H04L5/00 ,  H04L5/14 ,  H04W72/04 ,  H04W48/08 ,  H04J11/00 ,  H04L27/26

Abstract: This specification provides a method of receiving system information in a wireless communication system supporting a TDD narrowband. More specifically, the method performed by a user equipment includes receiving, from a base station, first system information on an anchor carrier, the first system information includes first information indicating whether a carrier used for second system information is an anchor carrier or a non-anchor carrier and second information on a location of the non-anchor carrier used for the second system information, and receiving, from the base station, the second system information on the non-anchor carrier based on the first system information. Accordingly, an SIB1-NB is transmitted and received even on a non-anchor carrier.

公开(公告)号：US20200153530A1

公开(公告)日：2020-05-14

申请号：US16738724

申请日：2020-01-09

Applicant: LG ELECTRONICS INC.

Inventor： Seokmin Shin ,  Yunjung Yi ,  Seonwook Kim ,  Bonghoe Kim

IPC: H04J11/00 ,  H04L27/26 ,  H04L5/00 ,  H04L12/18 ,  H04W56/00 ,  H04W72/04

Abstract: A cell search method of a terminal in a wireless communication system,comprises: a step of receiving a narrow band synchronization signal through a narrow band from a base station; and a step of acquiring time synchronization and frequency synchronization with the base station on the basis of the narrow band synchronization signal and detecting an identifier of the base station, wherein the narrow band has a system bandwidth of 180 kHz and includes twelve carriers arranged at intervals of 15 kHz, and the narrow band synchronization signal consists of a first narrow band synchronization signal and a second narrow band synchronization signal, wherein the first narrow band synchronization signal can be transmitted in a sixth subframe of a radio frame and the second narrow band synchronization signal can be transmitted in a tenth subframe of the radio frame.

公开(公告)号：US10601626B2

公开(公告)日：2020-03-24

申请号：US15765458

申请日：2016-10-04

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/26 ,  H04L5/00 ,  H04J11/00 ,  H04W56/00 ,  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：US10581548B2

公开(公告)日：2020-03-03

申请号：US16065372

申请日：2016-12-13

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/32 ,  H04J11/00 ,  H04L27/26 ,  H04J13/00 ,  H04L5/00

Abstract: The present invention provides a method and an apparatus for transmitting a primary synchronization signal in a wireless access system. As an example, the present invention may be also applied to a wireless access system for supporting narrow band internet of things (NB-IoT). In the present invention, proposed is a method for mapping a primary synchronization signal (PSS) to a plurality of orthogonal frequency division multiplexing (OFDM) symbols separated by cyclic prefix (CP).

公开(公告)号：US10484852B2

公开(公告)日：2019-11-19

申请号：US16383103

申请日：2019-04-12

Applicant: LG Electronics Inc.

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

IPC: H04W4/80 ,  H04W72/04 ,  H04L5/00 ,  H04L5/14

Abstract: One disclosure of the present specification provides a method for receiving a downlink physical channel by a narrowband Internet of things (NB-IoT) device. The method may comprise the steps of: determining whether to receive a signal of a downlink physical channel from an NB-IoT cell, on a downlink pilot time slot (DwPTS) of a time division duplex (TDD) special subframe; and receiving the signal of the downlink physical channel on the TDD special subframe including the DwPTS, on the basis of the determination.

公开(公告)号：US10420087B2

公开(公告)日：2019-09-17

申请号：US15441125

申请日：2017-02-23

Applicant: LG ELECTRONICS INC.

Inventor： Seokmin Shin ,  Hyunsoo Ko ,  Yunjung Yi

IPC: H04L29/08 ,  H04W56/00 ,  H04W72/04 ,  H04L5/00

Abstract: A method for receiving downlink data in a wireless communication system supporting a Narrow Band (NB)-Internet of Things (IoT), the method performed by a terminal comprising: receiving a narrowband synchronization signal (NBSS) on a first NB-IoT carrier from a base station; acquiring, based on the NBSS, time synchronization and frequency synchronization with the base station; receiving the system information related to the NB-IoT on the first NB-IoT carrier from the base station; being assigned a second NB-IoT carrier from the base station; and receiving the downlink data on at least one of the first NB-IoT carrier or the second NB-IoT carrier from the base station.

公开(公告)号：US10244378B2

公开(公告)日：2019-03-26

申请号：US15545284

申请日：2016-01-20

Applicant: LG ELECTRONICS INC.

Inventor： Seokmin Shin ,  Hyukjin Chae ,  Hanbyul Seo

IPC: H04W8/00 ,  H04W48/00 ,  H04J11/00 ,  H04W72/02 ,  H04W88/04 ,  H04L5/00

Abstract: A disclosure of the present specification provides a method for selecting, by a user equipment (UE) located outside a coverage of a base station, a neighboring UE with which the UE will perform device-to-device (D2D) communication. According to the method, it is possible to quickly find out whether a neighboring UE is located within the coverage of a base station and is capable of operating as a relay, through a DMRS and a detection signal received from the neighboring UE.

公开(公告)号：US10193734B2

公开(公告)日：2019-01-29

申请号：US15390135

申请日：2016-12-23

Applicant: LG ELECTRONICS INC.

Inventor： Seokmin Shin ,  Kunil Yum ,  Yunjung Yi ,  Bonghoe Kim ,  Hyunsoo Ko

IPC: H04L27/26 ,  H04W56/00 ,  H04W84/04 ,  H04L5/00

Abstract: Disclosed is a method for transmitting/receiving a signal in a wireless communication system supporting narrow-band (NB)-LTE, which is performed a terminal, including: receiving a narrow band synchronization signal from a base station; acquiring time synchronization and frequency synchronization with the base station based on the narrow band synchronization signal and detecting an identifier of the base station; and receiving a narrow band broadcast channel from the base station based on the detected identifier of the base station.