公开(公告)号：US20210329533A1

公开(公告)日：2021-10-21

申请号：US17267432

申请日：2019-08-12

Applicant: LG ELECTRONICS INC.

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

IPC: H04W48/02 ,  H04W4/70 ,  H04W48/12

Abstract: A cell access method of a terminal in a wireless communication system, and an apparatus therefor are disclosed. Particularly, provided is a cell access method by which a terminal supports standalone machine type communication (sMTC) in a wireless communication system, comprising the steps of: receiving, from a base station, one from among a plurality of system information blocks (SIBs), wherein the one SIB includes first instruction information related to the blocking of cell access of terminals for supporting services other than the sMTC; performing the cell access; and performing, on the basis of the first instruction information. a specific operation related to the sMTC when the cell does not permit the cell access of the terminals for supporting services other than the sMTC.

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：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：US20200275393A1

公开(公告)日：2020-08-27

申请号：US16064244

申请日：2017-09-28

Applicant: LG Electronics Inc.

Inventor： Seokmin SHIN ,  Hyunsoo KO ,  Kijun KIM

IPC: H04W56/00 ,  H04J11/00

Abstract: Disclosed are a method for transmitting and receiving a synchronization signal in a wireless communication system and an apparatus therefor. Specifically, a method for performing synchronization signal by transmitting and receiving a synchronization signal includes: receiving, from a base station, a primary synchronization signal (PSS) and a secondary synchronization signal (SSS); and performing synchronization by using the received PSS and the received SSS, in which a sequence for the SSS may be generated by a product between a first sequence and a second sequence and the number of first sequences may be configured to be larger than the number of second sequences.

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：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.

公开(公告)号：US20190253231A1

公开(公告)日：2019-08-15

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: H04L5/14 ,  H04W72/04 ,  H04L5/00

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：US20190190758A1

公开(公告)日：2019-06-20

申请号：US16249569

申请日：2019-01-16

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04L27/2613 ,  H04L1/00 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/143 ,  H04L5/1469 ,  H04L5/22 ,  H04L12/4612 ,  H04L27/2602 ,  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.

公开(公告)号：US20190174510A1

公开(公告)日：2019-06-06

申请号：US16324067

申请日：2017-08-09

Applicant: LG ELECTRONICS INC.

Inventor： Seokmin SHIN ,  Hyangsun YOU ,  Joonkul AHN ,  Yunjung YI ,  Seunggye HWANG

IPC: H04W72/12 ,  H04W72/04

Abstract: The present invention discloses a method for transmitting/receiving data in a wireless communication system supporting NB-IoT and a device for the method. More specifically, the method comprises receiving a first NPDCCH through a first search space; receiving a first NPDSCH carrying an SC-MCCH; receiving a second NPDCCH through a second search space; receiving a second NPDSCH carrying an SC-MTCH; and when a time period configured for at least one of a third NPDCCH or a third NPDSCH overlaps at least one of the first search space, a time period configured for the first NPDSCH, the second search space, or a time period configured for the second NPDSCH, preferentially receiving at least one of the third NPDSSCH or the third NPDSCH, wherein the third NPDCCH and the third NPDSCH are channels configured for either paging or random access.