公开(公告)号：US20210336688A1

公开(公告)日：2021-10-28

申请号：US17261760

申请日：2019-08-08

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin Lee ,  Heejin Kim ,  Sunghoon Jung ,  Hyukjin Chae

IPC: H04B7/08 ,  H04W76/19 ,  H04L1/20 ,  H04W48/16

Abstract: Disclosed are a method and an apparatus for a terminal to perform a radio link monitoring in a wireless communication system for supporting a sidelink according to various embodiments. Disclosed are a method and an apparatus for a terminal to perform a radio link monitoring in a wireless communication system for supporting a sidelink, the method comprising: a step of setting a beam failure recovery (BFR) parameter for a plurality of services on the basis of service attributes, for each service; and a step of independently sensing a beam failure for at least one beam corresponding to each service on the basis of a block error ratio (BLER) threshold value included in the BFR parameter and the number of beam failure instances (BFIs).

公开(公告)号：US11153905B2

公开(公告)日：2021-10-19

申请号：US15772791

申请日：2016-10-31

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun Park ,  Suckchel Yang ,  Hyukjin Chae

IPC: H04W74/08 ,  H04W8/24 ,  H04W16/14 ,  H04W28/26 ,  H04W72/04 ,  H04W72/14

Abstract: According to one embodiment of the present invention a method for transmitting and receiving a wireless signal of a base station in a wireless communication system, comprises the steps of: performing a first CCA for an unlicensed band; transmitting an UL grant for PUSCH transmission of a first user equipment when the idle state of the unlicensed band, resulting from the first CCA performance, is detected; and receiving the PUSCH from the first user equipment through the unlicensed band at a preset point of time after transmitting the UL grant, and simultaneously transmitting a DL grant for PDSCH transmission to a second user equipment.

公开(公告)号：US11153888B2

公开(公告)日：2021-10-19

申请号：US16497166

申请日：2018-03-23

Applicant: LG Electronics Inc.

Inventor： Hyukjin Chae ,  Hanbyul Seo

IPC: H04W72/08 ,  H04L12/24 ,  H04W24/08 ,  H04W64/00

Abstract: Disclosed in the present application is a method for a user equipment to select a carrier for performing sidelink communication in a multi-carrier communication system. The method comprises: a step of measuring, for each of a plurality of carriers, a channel busy ratio (CBR), which is the ratio between the entire resources of the carrier and a resource thereof pre-used during a predetermined time period, and a channel occupancy ratio (CR), which indicates the amount of a resource used by a user equipment on the carrier during the predetermined time period; a step of setting up, for the each of the plurality of carriers, a selectable carrier aggregation on the basis of a difference value between a CR limit value of each carrier and the measured CR thereof; and a step of performing sidelink communication by means of the carrier, of the carrier aggregation, which has the minimum measured CBR.

公开(公告)号：US11140528B2

公开(公告)日：2021-10-05

申请号：US16495822

申请日：2018-03-21

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin Lee ,  Hanbyul Seo ,  Youngtae Kim ,  Hyukjin Chae

IPC: H04W4/40 ,  H04L1/00 ,  H04L1/06 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04W88/16

Abstract: Provided are a method for decoding a V2X signal transmitted by means of a transmit diversity method in a wireless communication system, and a terminal for applying same. The method comprises: determining a first CS index of a first DM-RS associated with a first antenna port on the basis of a CRC of sidelink control information (SCI) received via a PSCCH; determining a second CS index of a second DM-RS associated with a second antenna port on the basis of reserved bits of the SCI; and on the basis of the first DM-RS having the first CS index applied thereto, and the second DM-RS having the second CS index applied thereto, decoding a V2X signal transmitted via the first antenna port and the second antenna port.

公开(公告)号：US11115981B2

公开(公告)日：2021-09-07

申请号：US16626826

申请日：2018-07-24

Applicant: LG ELECTRONICS INC.

Inventor： Youngdae Lee ,  Jaewook Lee ,  Seungmin Lee ,  Hyukjin Chae

IPC: H04W72/04 ,  H04W4/40 ,  H04W72/08

Abstract: A method and apparatus for allocating resources for a sidelink transmission in a wireless communication system is provided. A user equipment (UE) selects a first carrier, i.e. anchor carrier, among multiple carriers, and allocates a first resource on the first carrier. The UE allocates a second resource on a second carrier, i.e. non-anchor carrier, based on an offset from the first resource on the first carrier. The UE performs the sidelink transmission by using the first resource on the first carrier and the second resource on the second carrier.

公开(公告)号：US11101865B2

公开(公告)日：2021-08-24

申请号：US16919610

申请日：2020-07-02

Applicant: LG Electronics Inc.

Inventor： Haewook Park ,  Jonghyun Park ,  Kijun Kim ,  Hyukjin Chae

IPC: H04B7/06 ,  H04B7/0413 ,  H04W76/27 ,  H04L5/00

Abstract: In an aspect of the present invention, a method for reporting channel state information (CSI) of a UE in a wireless communication system includes: receiving, from an eNB, CSI-RS resource information related to a CSI-RS resource to which a channel state information-reference signal (CSI-RS) is mapped; receiving the CSI-RS transmitted through one or more antenna ports from the eNB based on the received CSI-RS resource information; and reporting CSI generated based on the received CSI-RS to the eNB, in which the CSI-RS resource is configured by aggregating a plurality of CSI-RS resources, and the aggregated CSI-RS resources are respectively positioned in different subframes on a time axis or in different resource blocks on a frequency axis.

公开(公告)号：US20210243627A1

公开(公告)日：2021-08-05

申请号：US17234050

申请日：2021-04-19

Applicant: LG Electronics Inc.

Inventor： Seungmin Lee ,  Hyukjin Chae

IPC: H04W24/08 ,  H04W4/46 ,  H04W76/14 ,  H04L5/00 ,  H04W74/08

Abstract: The present invention provides a V2X communication performance method which is performed by a vehicle-to-X (V2X) terminal in a wireless communication system, and which is based on a relatively short transmission time interval (S-TTI) compared to a legacy transmission time interval (L-TTI), whereby a channel busy ratio (CBR) or a channel occupancy ratio (CR) for the S-TTI-based V2X communication is measured, and the S-TTI-based V2X communication is performed based on the measured CBR or CR, wherein the S-TTI has a variable length.

公开(公告)号：US20210227508A1

公开(公告)日：2021-07-22

申请号：US17267368

申请日：2019-08-12

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin Lee ,  Hyukjin Chae ,  Kyuhwan Kwak

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

Abstract: Presented in one embodiment of the present invention is a method by which a first terminal communicates with a second terminal in a wireless communication system, comprising the steps of: allowing the first terminal to receive control information from a base station; allowing the first terminal to select a transmission resource on the basis of the control information; and allowing the first terminal to communicate with a second terminal on the basis of the transmission resource, wherein the control information is transmitted to the first terminal and the second terminal by the base station, and the control information includes information for preventing a transmission resource selection collision between the first terminal and the second terminal. The first terminal is capable of communicating with at least one of another UE, a UE related to an autonomous driving vehicle, a base station or a network.

公开(公告)号：US11051204B2

公开(公告)日：2021-06-29

申请号：US16477825

申请日：2018-01-12

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Hanbyul Seo ,  Seungmin Lee

IPC: H04L12/923 ,  H04W28/02 ,  H04W24/08 ,  H04W72/12

Abstract: One embodiment of the present invention relates to a method for performing a beam search and transmitting a signal in which a first terminal using an mmWave band performs a beam search and transmits a signal in a wireless communication system, comprising the steps of: receiving error information relating to the location of a second terminal; determining at least one of beam direction, beam search performing range, and beam search performing order using the error information for the second terminal; performing a beam search according to the determination that is made; and transmitting a signal to the second terminal through beamforming in accordance with the result of the beam search.

公开(公告)号：US11051144B2

公开(公告)日：2021-06-29

申请号：US16497410

申请日：2018-03-26

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin Lee ,  Hyukjin Chae

IPC: H04W4/40 ,  H04L5/00 ,  H04W72/04

Abstract: The present invention provides a short transmission time interval (S-TTI)-based vehicle-to-X (V2X) communication method performed by a V2X terminal in a wireless communication system, in which the S-TTI is relatively shorter than a legacy transmission time interval (L-TTI), the method comprising: determining information used for generation of a demodulation reference signal (DMRS) sequence and information used for channel scrambling; and performing the S-TTI-based V2X communication on the basis of the determination, wherein the L-TTI corresponds to a plurality of S-TTIs.