公开(公告)号：US10568124B2

公开(公告)日：2020-02-18

申请号：US16248653

申请日：2019-01-15

Applicant: LG ELECTRONICS INC.

Inventor： Hanjun Park ,  Seonwook Kim ,  Joonkui Ahn ,  Suckchel Yang

IPC: H04W72/12 ,  H04L1/18 ,  H04W88/08 ,  H04W4/70

Abstract: Disclosed are a method for transmitting and receiving a scheduling request between a terminal and a base station in a wireless communication system, and a device for supporting same.

公开(公告)号：US20200045739A1

公开(公告)日：2020-02-06

申请号：US16598547

申请日：2019-10-10

Applicant: LG Electronics Inc.

Inventor： Seonwook Kim ,  Joonkui Ahn ,  Hanjun Park

IPC: H04W74/08 ,  H04L5/00 ,  H04W16/14 ,  H04W72/12

Abstract: The present invention relates to a wireless access system supporting an unlicensed band. According to this disclosure, a method by which a terminal performs LBT in a wireless access system supporting an unlicensed band and multiple carriers can comprise the steps of: receiving, from a base station, each of uplink grants for scheduling uplink channels on two or more component carriers (CCs); randomly selecting a first CC on which a first LBT is to be performed from among the two or more CCs; performing the first LBT on the selected first CC: and performing a second LBT on the remaining CCs among the two or more CCs, wherein the first LBT can be a random back-off-based LBT for performing a random back-off by a random back-off counter value, and the second LBT can be a channel sensing-based LBT for sensing a channel during a predetermined time interval before uplink transmission.

公开(公告)号：US20200036482A1

公开(公告)日：2020-01-30

申请号：US16491670

申请日：2017-03-08

Applicant: LG Electronics Inc.

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

IPC: H04L1/18 ,  H04L1/16 ,  H04L5/00

Abstract: Disclosed are a method for transmitting and receiving a signal between a terminal and a base station in a wireless communication system and an apparatus for supporting the same. More particularly, disclosed is an explanation for a method of transmitting and receiving a signal between a terminal and a base station according to a new HARQ procedure which differs from a Hybrid Automatic Repeat reQuest (HARQ) procedure supported in a conventional wireless communication system.

公开(公告)号：US20200015252A1

公开(公告)日：2020-01-09

申请号：US16571357

申请日：2019-09-16

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 ,  H04W74/00

Abstract: The present invention relates to a wireless access system supporting an unlicensed band, various methods for adjusting a contention window size, methods for performing a carrier sensing process in a single engine and a multi-engine, and an apparatus supporting the same. As one embodiment of the invention, a method for adjusting a contention window size (CWS) in a wireless access system supporting an unlicensed band may comprise: a step of setting a contention window size (CWS) necessary for performing a channel access process for each of priority classes; a step of performing a channel access process for a particular priority class in a channel in an unlicensed band on the basis of the set CWS; a step of performing a downlink transmission related to the particular priority class if it is determined that the channel in the unlicensed band is in an idle state as a result of the channel access process; and a step of making adjustments for all CWS' of priority classes if a triggering event, which relates to a downlink transmission and increases or reduces the CWS for the particular priority class, occurs.

公开(公告)号：US10531486B2

公开(公告)日：2020-01-07

申请号：US15533953

申请日：2016-01-27

Applicant: LG ELECTRONICS INC.

Inventor： Hanjun Park ,  Joonkui Ahn ,  Suckchel Yang ,  Hanbyul Seo ,  Seonwook Kim ,  Seungmin Lee

IPC: H04W74/04 ,  H04W74/00 ,  H04W72/12 ,  H04L5/00 ,  H04W74/08

Abstract: A method for transmitting an uplink signal in an unlicensed band in a wireless communication system according to an embodiment of the present invention, which is performed by a terminal, may comprises the steps of: performing channel sensing for transmitting data and a sounding reference signal in a first time interval; transmitting the sounding reference signal in a second time interval immediately following the first time interval when a channel is in a non-occupied state according to a result of the channel sensing and transmission of the sounding reference signal is scheduled; and transmitting a preliminary signal or transmitting uplink data in the second time interval immediately following the first time interval when a channel is in a non-occupied state according to a result of the channel sensing and only transmission of the uplink data is scheduled.

公开(公告)号：US10454605B2

公开(公告)日：2019-10-22

申请号：US15772772

申请日：2016-11-02

Applicant: LG ELECTRONICS INC.

Inventor： Joonkui Ahn ,  Kijun Kim ,  Suckchel Yang ,  Hanjun Park ,  Seonwook Kim

IPC: H04J11/00 ,  H04L27/26 ,  H04L5/00 ,  H04W16/14 ,  H04W24/08 ,  H04W72/04 ,  H04W88/06 ,  H04L1/00

Abstract: Provided are a method for monitoring a control channel in an unlicensed band and an apparatus using the same. In an unlicensed cell, a user equipment (UE) monitors a physical downlink control channel (PDCCH) having burst control information in a search space defined in a control region of a subframe. The control region comprises a plurality of control channel elements (CCEs) starting from an index 0, and the search space is defined only in, from among the plurality of CCEs, first four CCEs and first eight CCEs.

公开(公告)号：US10412759B2

公开(公告)日：2019-09-10

申请号：US15557325

申请日：2016-03-11

Applicant: LG ELECTRONICS INC.

Inventor： Joonkui Ahn ,  Kijun Kim ,  Hanjun Park

IPC: H04W72/14 ,  H04W16/14 ,  H04W74/08

Abstract: A method for transmitting a downlink in an unlicensed band is provided. A plurality of base stations in a first group determine a first delay time from a reference time point for initiating a clear channel assessment (CCA) in the unlicensed band. The plurality of base stations execute CCA during a CCA section after the first delay time from the reference time point, and check whether a channel is idle. If the channel is idle, the plurality of base stations simultaneously transmits a downlink.

公开(公告)号：US10405293B2

公开(公告)日：2019-09-03

申请号：US15744548

申请日：2016-08-09

Applicant: LG ELECTRONICS INC.

Inventor： Hyunho Lee ,  Hanjun Park ,  Kijun Kim ,  Jonghyun Park

IPC: H04W64/00 ,  H04W72/04 ,  H04W24/10 ,  H04W8/26 ,  H04L5/00 ,  H04J11/00 ,  G01S1/20 ,  G01S5/00 ,  G01S5/02 ,  G01S5/10

Abstract: A method for measuring a reference signal for location determination in a wireless communication system, according to an embodiment of the present invention, is performed by means of a terminal. The method comprises the steps of: receiving assistant data related to neighbor cells and a reference cell for location determination; by means of the assistant data, receiving a positioning reference signal (PRS) of a cell-specific reference signal (CRS) of the reference cell or the neighbor cells and calculating a reference signal time difference (RSTD) measurement value; and reporting the measurement value to a location server, wherein the assistant data can comprise information about the number of CRS antenna ports of the reference cell and neighbor cells, CRS cyclic prefix (CP) length information, or configuration information about multicast broadcast single frequency network (MBSFN) subframes.

公开(公告)号：US20190239171A1

公开(公告)日：2019-08-01

申请号：US16318411

申请日：2017-08-08

Applicant: LG Electronics Inc.

Inventor： Joonkui Ahn ,  Daesung Hwang ,  Hyunsoo Ko ,  Yunjung Yi ,  Hyunho Lee ,  Seonwook Kim ,  Suckchel Yang ,  Hanjun Park

IPC: H04W52/36 ,  H04W72/04

CPC classification number: H04W52/365 ,  H04W52/36 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/12 ,  H04W74/08

Abstract: Provided are a method and a device for reporting a power headroom in a wireless communication system. The device receives initial downlink control information (DCI) for physical uplink shard channel (PUSCH) transmission in a first subframe and receives triggering DCI in a second subframe. The device calculates a power headroom on the assumption that the PUSCH transmission is not performed.

公开(公告)号：US10341980B2

公开(公告)日：2019-07-02

申请号：US15313775

申请日：2015-08-28

Applicant: LG ELECTRONICS INC.

Inventor： Hanjun Park ,  Hyunho Lee ,  Daesung Hwang ,  Bonghoe Kim ,  Kijun Kim ,  Jonghyun Park ,  Hyangsun You

IPC: G01S5/02 ,  G01S5/06 ,  H04L5/00 ,  H04L29/06 ,  H04W64/00 ,  H04B17/336

Abstract: According to one embodiment of the present invention, a method by which a terminal receives a reference signal for determining a position in a wireless communication system comprises the steps of: receiving information, which relates to a neighboring cell, including information relating to a plurality of cells to which an aggregation positioning reference signal (PRS) is transmitted; receiving the aggregation PRS by using the information relating to a plurality of cells; and measuring a reference signal time difference (RSTD) for the plurality of cells by using the received aggregation PRS, wherein a sequence of the aggregation PRS can be initialized by unique identifiers allocated to the plurality of cells.