公开(公告)号：US20210045099A1

公开(公告)日：2021-02-11

申请号：US16965593

申请日：2019-02-11

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04L5/00 ,  H04L5/14 ,  H04L1/18

Abstract: The present specification discloses a method for a terminal receiving a narrowband PDCCH in a narrowband-supporting wireless communication system, and a device therefor. Specifically, the method comprises the steps of: receiving search space-related information from a base station via upper layer signaling; and receiving, from the base station, a narrowband PDCCH from the search space, which comprises one or more narrowband PDCCH candidates, wherein the search space includes a first search space defined on the basis of the search space-related information, and a second search space having the same type as that of the first search space, wherein, when one portion of the first search space and the second search space overlap, at least one NPDCCH candidate, in the first search space, overlapping with the second search space is dropped.

公开(公告)号：US20200245303A1

公开(公告)日：2020-07-30

申请号：US16650787

申请日：2018-09-20

Applicant: LG Electronics Inc.

Inventor： Seunggye HWANG ,  Joonkui AHN ,  Changhwan PARK

IPC: H04W72/04 ,  H04W76/28

Abstract: According to one embodiment of the present specification, provided is a method for monitoring a downlink channel or a downlink signal by means of a wireless device. The method may comprise the steps of: receiving a power saving signal from a serving cell; and monitoring a subsequent downlink channel or downlink signal based on the reception of the power saving signal. The size of a transmission unit of the power saving signal may be determined based on setup information. The setup information may be received from the serving cell.

公开(公告)号：US20200186321A1

公开(公告)日：2020-06-11

申请号：US16789582

申请日：2020-02-13

Applicant: LG Electronics Inc.

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

IPC: H04L5/14 ,  H04W72/04

Abstract: The present invention relates to a method for receiving a signal in a wireless communication system supporting narrowband Internet of things (NB-IoT) operated in time division duplex (TDD) and a device therefor, the method comprising the steps of: configuring a search space for a physical downlink control channel; and monitoring the physical downlink control channel on the basis of the configured search space, wherein the search space is configured by a TDD special subframe from which aggregation level 1 has been excluded, and the TDD special subframe indicates a subframe including a downlink period, a guard period, and an uplink period.

公开(公告)号：US20200178296A1

公开(公告)日：2020-06-04

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

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：US20200059248A1

公开(公告)日：2020-02-20

申请号：US16347508

申请日：2017-11-03

Applicant: LG Electronics Inc.

Inventor： Kwangseok NOH ,  Bonghoe KIM ,  Jinwoo KIM ,  Ilmu BYUN ,  Jongwoong SHIN ,  Seunggye HWANG

IPC: H03M13/15 ,  H03M13/11

Abstract: Disclosed are a method for dividing a transport block of a low density parity check (LDPC) code and an apparatus therefor. A method for dividing a transport block of an LDPC code according to the present disclosure can improve the performance of the LDPC code by dividing the transport block using a minimum number of code blocks. In addition, it is possible to minimize shortening bits by making the size of some of the code blocks smaller than the size of the other code blocks. Further, it is possible to prevent performance degradation due to a minimum size code block by minimizing the number of the code blocks and performing shortening on a large size code block.

公开(公告)号：US20200053790A1

公开(公告)日：2020-02-13

申请号：US16373239

申请日：2019-04-02

Applicant: LG Electronics Inc.

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

IPC: H04W74/08 ,  H04W74/00

Abstract: This specification provides a method for transmitting a random access preamble by a user equipment (UE) in a wireless communication system supporting a narrow band-Internet of things (NB-IoT). Specifically, the UE receives a downlink control channel (Physical Downlink Control Channel (PDCCH)) including downlink control information (DCI) from an eNB and the DCI includes an indicator indicating whether a preamble format of a random access preamble allocated to the UE is format 0/1 or format 2. Then, the UE transmits the random access preamble to the eNB in a subcarrier allocated to the UE according to the preamble format and receives a random access response from the eNB in response to the random access preamble.

公开(公告)号：US20190239189A1

公开(公告)日：2019-08-01

申请号：US16379288

申请日：2019-04-09

Applicant: LG Electronics Inc.

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

IPC: H04W68/02 ,  H04W52/02

CPC classification number: H04W68/02 ,  H04W52/0216 ,  H04W52/0229 ,  Y02D70/00

Abstract: One disclosure in the present specification presents a method for a wireless device to receive a paging message. The method may comprise: a step of deciding a wake up signal occasion (WUSO) window for attempting to receive a wake up signal (WUS); and a step of monitoring a downlink control channel during a paging window so as to attempt to receive a paging message, if the WUS is received within the decided WUSO window. Here, the WUSO window may be decided according to a duration size and offset.

公开(公告)号：US20190223157A1

公开(公告)日：2019-07-18

申请号：US16312979

申请日：2017-06-22

Applicant: LG ELECTRONICS INC.

Inventor： Seunggye HWANG ,  Yunjung YI ,  Kijun KIM ,  Seonwook KIM

IPC: H04W72/02 ,  H04W74/08 ,  H04W72/04 ,  H04L27/26

Abstract: A disclosure of the present specification provides a method for performing random access by a terminal. The method may comprise the steps of: selecting, by the terminal, a first resource among a plurality of resources for a physical random access channel (PRACH), wherein the plurality of resources exist for each numerology, and the numerology is defined by a cycle prefix (CP) length and a subcarrier spacing; and transmitting, by the terminal, the PRACH on the first resource through a first numerology when the selected first resource is for the first numerology.

公开(公告)号：US20190036746A1

公开(公告)日：2019-01-31

申请号：US16075128

申请日：2017-02-02

Applicant: LG ELECTRONICS INC.

Inventor： Seunggye HWANG ,  Hyunsoo KO ,  Yunjung YI ,  Bonghoe KIM ,  Kijun KIM

IPC: H04L27/00 ,  H04L5/00 ,  H04W72/04 ,  H04L1/00 ,  H04W4/80 ,  H04L27/22 ,  H04L27/26

Abstract: The present specification relates to a method for transmitting, by a terminal, a demodulation reference signal (DMRS) in a wireless communication system supporting narrow-band (NB)-Internet of things (IOT), the method comprising: generating, for single tone transmission, a reference signal sequence to be used for demodulation; mapping the reference signal sequence to a plurality of symbols; and transmitting, in the plurality of symbols, the demodulation reference signal to a base station by using a single tone, wherein phase rotation is applied to each of the plurality of symbols.

公开(公告)号：US20180062904A1

公开(公告)日：2018-03-01

申请号：US15565297

申请日：2016-04-18

Applicant: LG ELECTRONICS INC.

Inventor： Seunggye HWANG ,  Hyangsun YOU ,  Bonghoe KIM ,  Kijun KIM ,  Yunjung YI

IPC: H04L27/34 ,  H04L27/26 ,  H04L5/00

CPC classification number: H04L27/3411 ,  H04L1/08 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/18 ,  H04L27/2067 ,  H04L27/2607 ,  H04L27/2614 ,  H04L27/2615 ,  H04L27/3444 ,  H04L67/12

Abstract: One disclosure of the present specification provides a method for mapping data symbols in a wireless communication system. The method comprises the steps of: generating a first symbol sequence in which first symbols among data symbols to be transmitted are consecutively arranged; generating a second symbol sequence in which second symbols among the data symbols are consecutively arranged; and performing modulation of the first and second symbol sequences, wherein the step of performing modulation may be a phase rotation on the boundary of the first symbol sequence and the second symbol sequence.