公开(公告)号：US20200267718A1

公开(公告)日：2020-08-20

申请号：US16610275

申请日：2018-05-03

Applicant: LG Electronics Inc.

Inventor： Hanjun PARK ,  Seonwook KIM ,  Suckchel YANG ,  Changhwan PARK

IPC: H04W72/04 ,  H04L5/00 ,  H04B1/713

Abstract: Provided are: a method by which a terminal and a base station transmit/receive a signal in a wireless communication system; and a communication device using the method. The method allocates, to a plurality of antenna ports, resources for transmitting a physical uplink control channel (PUCCH) composed of two or less symbols, and transmits, to the base station, the PUCCH through the plurality of antenna ports, wherein the resources allocated to the plurality of antenna ports are multiplexed with each other.

公开(公告)号：US20200260482A1

公开(公告)日：2020-08-13

申请号：US16863846

申请日：2020-04-30

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook KIM ,  Joonkui AHN ,  Suckchel YANG ,  Kijun KIM ,  Byounghoon KIM ,  Hanbyul SEO ,  Hanjun PARK ,  Daesung HWANG

IPC: H04W74/08 ,  H04L1/00 ,  H04L1/18 ,  H04L5/00 ,  H04W76/28 ,  H04W28/02 ,  H04W28/26

Abstract: The present invention relates to a wireless access system that supports an unlicensed band, and provides various methods for adjusting a contention window size, methods for determining the time when the adjusted contention window size is applied, methods for distinguishing between a collision and a channel error, and devices for supporting the same. As an embodiment of the present invention, a method for adjusting a contention window size in a wireless access system supporting an unlicensed band may comprise the steps of: performing a channel access procedure; when it is determined through the performed channel access procedure that a serving cell (Scell) in the unlicensed band is in an idle state, transmitting a transmission burst including a downlink signal through the unlicensed band; receiving hybrid automatic repeat and request acknowledgment (HARQ-ACK) information corresponding to the transmission burst; and adjusting the CWS using the number of DTX states in the HARQ-ACK information when the transmission burst is scheduled in a self-carrier scheduling scheme.

公开(公告)号：US20200163126A1

公开(公告)日：2020-05-21

申请号：US16747774

申请日：2020-01-21

Applicant: LG Electronics Inc.

Inventor： Suckchel YANG ,  Joonkui AHN ,  Hanjun PARK ,  Seonwook KIM

IPC: H04W74/08 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04W72/14 ,  H04L25/02 ,  H04B7/06 ,  H04W76/27 ,  H04W76/28

Abstract: The present invention relates to a wireless communication system, and specifically, to a method and a device for the method which comprises the steps of: receiving a PDCCH including uplink scheduling information; and transmitting, at a UL SF, a PUSCH indicated by the uplink scheduling information, wherein, if the PDCCH requests a transmission of an ACK, the PUSCH includes ACK information about a SF set corresponding to the UL SF, wherein the SF set includes a plurality of SFs.

公开(公告)号：US20200120692A1

公开(公告)日：2020-04-16

申请号：US16656164

申请日：2019-10-17

Applicant: LG Electronics Inc.

Inventor： Hanjun PARK ,  Suckchel YANG ,  Seonwook KIM

IPC: H04W72/12 ,  H04W76/11 ,  H04W72/04 ,  H04L5/00 ,  H04L1/18 ,  H04W76/27

Abstract: A wireless communication system is disclosed. More particularly, disclosed herein are a method including receiving downlink scheduling information on a PDCCH, the downlink scheduling information comprising resource indication information (RI), selecting a first PUCCH resource set from among a plurality of PUCCH resource sets based on a size of the control information, and transmitting the control information using a PUCCH resource corresponding to the RI in the first PUCCH resource set, wherein, when a control information size supported by the first PUCCH resource set is less than or equal to X (>=1) bits, the PUCCH resource is determined using one of a first scheme and a second scheme, and wherein, when the control information size supported by the first PUCCH resource set is greater than X bits, the PUCCH resource is determined using only the second scheme, and an apparatus therefor.

公开(公告)号：US20200059946A1

公开(公告)日：2020-02-20

申请号：US16664610

申请日：2019-10-25

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin LEE ,  Hyukjin CHAE ,  Youngtae KIM ,  Kijun KIM ,  Hanbyul SEO ,  Hanjun PARK

IPC: H04W72/12 ,  H04W72/04 ,  H04W72/02 ,  H04W4/40 ,  H04L5/00 ,  H04W4/44 ,  H04W4/90 ,  H04W72/10

Abstract: The present invention relates to a Vehicle-to-X (V2X) communication method performed by a terminal in a wireless communication system. The method comprises: determining priority of information related to the V2X communication; selecting a transmission time interval (TTI) on the basis of the priority; and transmitting the information on the basis of the selected TTI. If the information related to the V2X communication is information having high priority, a first TTI is selected, and if the information related to the V2X communication is information having relatively lower priority than the information having high priority, a second TTI is selected.

公开(公告)号：US20200029354A1

公开(公告)日：2020-01-23

申请号：US16337898

申请日：2017-09-22

Applicant: LG ELECTRONICS INC.

Inventor： Daesung HWANG ,  Hanjun PARK ,  Yunjung YI ,  Hyunho LEE

IPC: H04W72/12 ,  H04W72/04

Abstract: A method is disclosed for detecting downlink control information. In particular, the method comprises: a step of detecting first downlink control information transmitted from a specific cell; a step of detecting second downlink control information included in a shortened downlink control channel, based on resource information about the shortened downlink control channel included in the first downlink control information, if the first downlink control information is detected; and a step of changing any one of a shortened downlink data channel, a shortened uplink data channel, and transmission/reception timings of ACK/NACK signals, which are set in advance based on the performance of the terminal, if the first downlink control information is not detected.

公开(公告)号：US20190215823A1

公开(公告)日：2019-07-11

申请号：US16245929

申请日：2019-01-11

Applicant: LG Electronics Inc.

Inventor： Seonwook KIM ,  Jiwon KANG ,  Kijun KIM ,  Hanjun PARK ,  Haewook PARK ,  Joonkui AHN ,  Suckchel YANG

IPC: H04W72/04 ,  H04W48/08 ,  H04L1/00 ,  H04L1/18 ,  H04L5/00

Abstract: Provided are a method for transmitting uplink control information (UCI) of a terminal in a wireless communication system and the UE using the method. The method includes determining a number of coded symbols for the UCI transmission and transmitting the UCI on a physical uplink shared channel (PUSCH) based on the number of coded symbols. The number of coded symbols is determined among a first value based on a payload size of the UCI and an offset value and a second value based on a radio resource control (RRC) signal.

公开(公告)号：US20190166617A1

公开(公告)日：2019-05-30

申请号：US16091804

申请日：2016-12-28

Applicant: LG Electronics Inc.

Inventor： Hanjun PARK ,  Joonkui AHN ,  Suckchel YANG ,  Yunjung YI ,  Seonwook KIM ,  Daesung HWANG

IPC: H04W72/14 ,  H04L1/18 ,  H04W74/08 ,  H04W72/04

Abstract: The present invention discloses a method for a base station or a user equipment to transmit and receive an uplink signal between the base station and the user equipment in an LAA (licensed assisted access) system performing LBT (listen-before-talk)-based signal transmission and an apparatus supporting the same.Specifically, the present invention proposes a method for the base station and the user equipment to transmit an uplink signal according to a scheduling type indicated to the user equipment by the base station and an apparatus supporting the same.

公开(公告)号：US20190150166A1

公开(公告)日：2019-05-16

申请号：US16249858

申请日：2019-01-16

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook KIM ,  Joonkui AHN ,  Suckchel YANG ,  Kijun KIM ,  Byounghoon KIM ,  Hanbyul SEO ,  Hanjun PARK ,  Daesung HWANG

IPC: H04W72/12 ,  H04W74/08 ,  H04L5/00 ,  H04W74/00 ,  H04L1/18 ,  H04W76/28 ,  H04W24/10

Abstract: The present invention relates to a wireless access system supporting an unlicensed band and provides methods for performing a channel access process for transmitting different types of signals, and devices supporting the same. According to one embodiment of the present invention, a method for transmitting different types of signals in a wireless access system supporting an unlicensed band can comprise the steps of: performing a first channel process (CAP) for transmitting a first type of signal; and transmitting a transmission burst including the first type of signal through the unlicensed band if it is determined that a serving cell (SCell) of the unlicensed band is in an idle state after performing the first CAP. At this time, at least one of first parameters for performing the first CAP can be set to be value less than that of second parameters for performing a second CAP for transmitting a second type of signal.

公开(公告)号：US20190090276A1

公开(公告)日：2019-03-21

申请号：US16085948

申请日：2017-03-28

Applicant: LG ELECTRONICS INC.

Inventor： Hyunho LEE ,  Hanjun PARK ,  Yunjung YI ,  Joonkui AHN ,  Seonwook KIM

IPC: H04W74/08 ,  H04L5/00 ,  H04W72/12

Abstract: A method for transmitting an uplink signal in an unlicensed band for a terminal configured to support multiple transmission time interval (TTI) lengths in a wireless communication system, according to one embodiment of the present invention, is performed by the terminal and may comprises the steps of: receiving a scheduling indication for multiple TTIs; according to the received scheduling indication, performing channel sensing in a clear channel assessment (CCA) gap for the multiple TTIs; and if channel sensing for at least one of the multiple TTIs is successful, transmitting, in a predetermined symbol, an uplink reference signal for the multiple TTIs.