公开(公告)号：US11405954B2

公开(公告)日：2022-08-02

申请号：US16892200

申请日：2020-06-03

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook Kim ,  Joonkui Ahn ,  Suckchel Yang ,  Kijun Kim ,  Byounghoon Kim ,  Hanbyul Seo ,  Hanjun Park ,  Daesung Hwang

IPC: H04W4/00 ,  H04W74/08 ,  H04W74/00 ,  H04L1/18

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 and devices for supporting the same. As an embodiment of the present invention, a method for adjusting a contention window size (CWS) in a wireless access system supporting an unlicensed band may comprise the steps of: performing a channel access procedure; when, as a result of performing the channel access procedure, it is determined that a serving cell (Scell) in the unlicensed band is in an idle state, transmitting a transmission burst including a downlink signal; receiving HARQ-ACK information corresponding to the transmission burst; and adjusting the CWS on the basis of the HARQ-ACK information corresponding to the first subframe of the transmission burst.

公开(公告)号：US11357021B2

公开(公告)日：2022-06-07

申请号：US16580482

申请日：2019-09-24

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook Kim ,  Joonkui Ahn ,  Seungmin Lee ,  Kijun Kim ,  Suckchel Yang ,  Hanbyul Seo ,  Jonghyun Park ,  Hyangsun You

IPC: H04W72/12 ,  H04B7/06 ,  H04W72/04 ,  H04L5/00 ,  H04L41/0631 ,  H04L47/28 ,  H04L47/70 ,  H04W24/10 ,  H04W16/14 ,  H04L47/74 ,  H04L27/26 ,  H04W74/08

Abstract: A method for receiving a signal by an apparatus in a wireless communication system is discussed. The method includes receiving, in a first time resource within a second time resource configured as 14 number of symbols, a physical channel carrying downlink control information within resource element groups (REGs), and receiving a physical downlink shared channel based on the downlink control information. Further, the REGs are indexed starting from a symbol included in the first time resource, and a starting boundary of the first time resource is determined independently from a starting boundary of the second time resource.

公开(公告)号：US11356998B2

公开(公告)日：2022-06-07

申请号：US17018342

申请日：2020-09-11

Applicant: LG Electronics Inc.

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

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

Abstract: The present invention relates to a wireless communication system and, specifically, to a method comprising the steps of: repeatedly transmitting a PUSCH; and repeatedly receiving the PDSCH in a DL duration immediately following after repeated transmission of the PDSCH, wherein when a terminal operates in an in-band mode, each PDSCH is received from an OFDM symbol subsequent to a k-th OFDM symbol in each corresponding time unit within the DL duration (k>1), and in the case where the terminal operates in a guard-band mode or a stand-alone mode, signal reception is skipped at a starting portion of the DL duration when the PDSCH is repeatedly received.

公开(公告)号：US11324051B2

公开(公告)日：2022-05-03

申请号：US16743396

申请日：2020-01-15

Applicant: LG ELECTRONICS INC.

Inventor： Joonkui Ahn ,  Suckchel Yang ,  Yunjung Yi

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

Abstract: A disclosure of the present specification provides a random access method for an unlicensed band. The method comprises the steps of: transmitting, by a user equipment (UE), a random access preamble in a first cell of the unlicensed band; and receiving, by the UE, a random access response in a second cell, wherein the second cell may be a first cell, a cell of the unlicensed band, included in a cell group to which the first cell belongs, or a cell of the unlicensed band, included in a timing advance group (TAG) within the cell group, to which the first cell belongs.

公开(公告)号：US20220132545A1

公开(公告)日：2022-04-28

申请号：US17508462

申请日：2021-10-22

Applicant: LG ELECTRONICS INC.

Inventor： Youngdae Lee ,  Joonkui Ahn ,  Suckchel Yang ,  Seonwook Kim

IPC: H04W72/12 ,  H04L1/18 ,  H04L5/00 ,  H04W4/06

Abstract: According to an embodiment of the present invention, a user equipment (UE) may receive one or more physical downlink control channels (PDCCHs) each carrying downlink control information (DCI) including a field indicating a transmitting configuration index (TCI) state, and receive, based the one or more PDCCHs, one or more of a plurality of physical downlink shared channels (PDSCHs), wherein the plurality of PDSCHs may carry a same transport block (TB) in a plurality of TCI states, respectively, and the UE can determine, for each TCI state, whether a hybrid automatic repeat request (HARQ) operation is enabled or disabled, and transmits HARQ-acknowledgement (ACK) information for the same TB through a physical uplink control channel (PUCCH) associated with an HARQ operation-enabled TCI state.

公开(公告)号：US11303402B2

公开(公告)日：2022-04-12

申请号：US16801427

申请日：2020-02-26

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsoo Ko ,  Kijun Kim ,  Eunsun Kim ,  Suckchel Yang

IPC: H04L5/00 ,  H04L5/26 ,  H04L1/16 ,  H04L5/10 ,  H04L1/00

Abstract: A method and a device for transmitting reference signals in a wireless communication system are disclosed. For these, a sequence is acquired to be used for the reference signals, and the reference signals are transmitted through subframes comprising a first type subframe and a second type subframe. Here, the first type subframe includes a first number of OFDM symbols and the second type subframe includes a second number of OFDM symbols. And, a first position of OFDM symbol for transmitting the reference signals at the first type subframe is the same as a second position of OFDM symbol for transmitting the reference signals at the second type subframe.

公开(公告)号：US11291055B2

公开(公告)日：2022-03-29

申请号：US16084091

申请日：2017-03-02

Applicant: LG Electronics Inc.

Inventor： Eunsun Kim ,  Kijun Kim ,  Hyunsoo Ko ,  Suckchel Yang ,  Yunjung Yi ,  Kilbom Lee

IPC: H04W74/08 ,  H04W48/10 ,  H04W56/00 ,  H04W74/00 ,  H04W48/14 ,  H04W72/00 ,  H04W72/04

Abstract: In a wireless communication system according to the present invention, a plurality of synchronization signals may be transmitted on a cell. The plurality of synchronization signals may be respectively associated with a plurality of random access channel establishments. A user equipment may receive at least one of the plurality of synchronization signals. The user equipment may transmit a random access channel using a random access channel.

公开(公告)号：US11284426B2

公开(公告)日：2022-03-22

申请号：US17244713

申请日：2021-04-29

Applicant: LG Electronics Inc.

Inventor： Seungmin Lee ,  Suckchel Yang ,  Seonwook Kim

IPC: H04W72/12 ,  H04L5/00

Abstract: Provided are a method for a terminal transmitting an uplink control channel in a wireless communication system, and a device using same. The method comprises: determining the overlapping or not between a first physical uplink control channel (PUCCH) and a second PUCCH; and determining a transmission method for the first PUCCH and the second PUCCH on the basis of the determining. Here, the first PUCCH is an uplink control channel that is frequency division multiplexed (FDM) with a data channel, and the second PUCCH is an uplink control channel that is time division multiplexed (TDM) with the data channel.

公开(公告)号：US11259326B2

公开(公告)日：2022-02-22

申请号：US16997892

申请日：2020-08-19

Applicant: LG ELECTRONICS INC.

Inventor： Joonkui Ahn ,  Byounghoon Kim ,  Suckchel Yang ,  Yunjung Yi ,  Seonwook Kim

IPC: H04W4/00 ,  H04W74/08 ,  H04W56/00 ,  H04W16/14

Abstract: Provided are a method for performing a random access process in an unlicensed band, and a device using the same. The device receives a random access preamble (RAP) order instructing the transmission of a RAP. The device performs a clear channel assessment (CCA) in an unlicensed cell during an RAP window so as to transmit the RAP when the device succeeds in CCA.

公开(公告)号：US11252764B2

公开(公告)日：2022-02-15

申请号：US16096661

申请日：2017-05-10

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook Kim ,  Joonkui Ahn ,  Kijun Kim ,  Yunjung Yi ,  Suckchel Yang

IPC: H04W74/08 ,  H04L27/00 ,  H04W72/12 ,  H04L5/00 ,  H04L25/02 ,  H04W74/00 ,  H04W72/04 ,  H04W72/10

Abstract: Disclosed are a method for transmitting, by a terminal, a sounding reference signal to a base station without a physical uplink shard channel in a licensed assisted access (LAA) system in which a base station or a terminal performs listen-before-talk (LBT)-based signal transmission, and an apparatus supporting the same.