公开(公告)号：US10993266B2

公开(公告)日：2021-04-27

申请号：US16097201

申请日：2017-04-27

Applicant: LG ELECTRONICS INC.

Inventor： Kyuseok Kim ,  Kilborn Lee ,  Kijun Kim ,  Ilmu Byun ,  Daesung Hwang ,  Minki Ahn

IPC: H04W74/08 ,  H04W56/00 ,  H04B7/0408 ,  H04W76/11 ,  H04B7/06 ,  H04W16/28 ,  H04W72/04 ,  H04W88/02 ,  H04B7/0404

Abstract: The present invention relates to a method for user equipment to perform random access in a wireless communication system and a device therefor. The present invention can provide a method and device which: select a predetermined preamble among multiple preamble sets configured according to predetermined conditions; repeatedly transmit the selected predetermined preamble to a base station via one or multiple mutually different neighboring beams; and receive, from the base station and in response to the preamble, a response message containing a temporary identifier of user equipment, wherein the selected predetermined preamble is repeatedly transmitted on resources which constitute a subframe and are distinguished according to the one or multiple mutually different beams.

公开(公告)号：US10749583B2

公开(公告)日：2020-08-18

申请号：US16319225

申请日：2018-06-14

Applicant: LG ELECTRONICS INC.

Inventor： Haewook Park ,  Kijun Kim ,  Minki Ahn

IPC: H04B7/0456 ,  H04L1/16 ,  H04B7/06 ,  H04L25/03 ,  H04W72/12 ,  H04W40/06 ,  H04B7/0417

Abstract: It is disclosed a method for transmitting and receiving channel state information in a wireless communication system and a device for supporting the same. Particularly, a method for transmitting channel state information performed by a User Equipment (UE) may include receiving, from a base station, a bitmap for configuring codebook subset restriction (CSR) and reporting, to the base station, Channel State Information (CSI), when a number of antenna ports is configured as 16 or more and a number of layers associated with a rank indicator (RI) in the CSI is 3 or 4, a unit of multiple bits in a bitmap for configuring the CSR is associated with each precoder, and a reporting of precoding matrix indicator (PMI) corresponding to the precoder associated with the multiple bits is restricted in the CSI, when the CSR is indicated in any one of the multiple bits, and each bit in the bitmap for configuring the CSR is associated with each precoder.

公开(公告)号：US10660054B2

公开(公告)日：2020-05-19

申请号：US16080654

申请日：2017-02-28

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom Lee ,  Kijun Kim ,  Jaehoon Chung ,  Hyukjin Chae ,  Kyuseok Kim ,  Minki Ahn

IPC: H04L12/28 ,  H04W56/00 ,  H04J11/00 ,  H04B7/06 ,  H04L27/26 ,  H04L5/00 ,  H04L7/08 ,  H04J1/16

Abstract: A synchronization signal transmission method and a base station are disclosed, the method comprising: generating a PSS group by applying an OCC to a combination of mutually different PSS sequences to be transmitted across multiple time intervals; disposing a SSS in a region that is adjacent, on a frequency axis, to a resource region assigned to the PSS group; generating a synchronization signal comprising the PSS group and the SSS; and transmitting the synchronization signal across multiple time intervals.

公开(公告)号：US20200092055A1

公开(公告)日：2020-03-19

申请号：US16617064

申请日：2018-06-18

Applicant: LG Electronics Inc.

Inventor： Kukheon Choi ,  Jonghyun Park ,  Jiwon Kang ,  Kyuseok Kim ,  Minki Ahn ,  Kilbom Lee

IPC: H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04W72/12

Abstract: A method for generating an SRS sequence by a terminal may comprise the steps of: calculating a first root value for generation of an SRS sequence of a first block among concatenated blocks configured for transmission of an SRS, using a terminal-specific SRS identifier; calculating a second root value for generation of an SRS sequence of a second block on the basis of the calculated first root value and a root offset value; and generating an SRS sequence for transmission of an SRS on the concatenated blocks by applying the first root value to the first block and applying the second root value to the second block.

公开(公告)号：US10516514B2

公开(公告)日：2019-12-24

申请号：US16291459

申请日：2019-03-04

Applicant: LG Electronics Inc.

Inventor： Jonghyun Park ,  Kijun Kim ,  Jiwon Kang ,  Haewook Park ,  Minki Ahn ,  Sangrim Lee

IPC: H04W72/04 ,  H04W88/08 ,  H04L5/00 ,  H04W16/28

Abstract: Disclosed is a method for uplink transmission and reception in a wireless communication system and an apparatus therefor. Particularly, a method for performing uplink transmission by a user equipment (UE) in a wireless communication system includes: receiving sounding reference signal (SRS) resource configuration information form a base station, in which the SRS resource configuration information includes SRS resource information and association configuration information between a first SRS and a second SRS that is a target of the SRS resource configuration information; and transmitting precoded the second SRS to the base station on an SRS resource indicated by the SRS resource information, and the second SRS may be transmitted based on the precoding applied to the first SRS indicated by the association configuration information.

公开(公告)号：US10433312B2

公开(公告)日：2019-10-01

申请号：US15887326

申请日：2018-02-02

Applicant: LG ELECTRONICS INC.

Inventor： Minki Ahn ,  Jiwon Kang ,  Kijun Kim ,  Jonghyun Park ,  Changhwan Park ,  Yunjung Yi

IPC: H04W72/04 ,  H04L1/16

Abstract: In the present invention, a method for performing an uplink transmission in a wireless communication system and an apparatus for supporting the same are disclosed. Particularly, a method for transmitting an uplink control channel in a wireless communication system by a terminal may comprise receiving, from a base station, beam information regarding one or more beams for transmitting a physical uplink control channel (PUCCH), via a radio resource control (RRC) signaling; receiving, from the base station, beam indication information indicating a specific beam among the one or more beams using a medium access control-control element (MAC-CE); and transmitting, to the base station, the physical uplink control channel using the specific beam.

公开(公告)号：US10341144B2

公开(公告)日：2019-07-02

申请号：US16209541

申请日：2018-12-04

Applicant: LG Electronics Inc.

Inventor： Kukheon Choi ,  Jiwon Kang ,  Jonghyun Park ,  Kyuseok Kim ,  Minki Ahn ,  Kilbom Lee

IPC: H04L12/28 ,  H04L25/02 ,  H04B1/713 ,  H04L5/00 ,  H04L27/26 ,  H04W76/27 ,  H04W72/04 ,  H04B7/06 ,  H04W88/02 ,  H04J1/16

Abstract: A method of transmitting a sounding reference symbol (SRS) at a user equipment (UE) includes receiving, from a base station, first information including information on at least one predetermined SRS sequence parameter configured in association with a frequency hopping pattern among SRS sequence parameters, generating an SRS sequence using a value of a parameter corresponding to a frequency hopping pattern configured in the UE with respect to the at least one predetermined SRS sequence parameter, and transmitting the SRS, to which the generated SRS sequence is applied, to the base station through SRS resources.

公开(公告)号：US11750266B2

公开(公告)日：2023-09-05

申请号：US17988525

申请日：2022-11-16

Applicant: LG ELECTRONICS INC.

Inventor： Jiwon Kang ,  Minki Ahn ,  Kilbom Lee

IPC: H04B7/06 ,  H04L5/00 ,  H04W72/044 ,  H04W74/08 ,  H04W72/21

CPC classification number: H04B7/0695 ,  H04L5/0048 ,  H04W72/046 ,  H04W72/21 ,  H04W74/0833

Abstract: Provided is a beam recovery method in a wireless communication system. A beam recovery method performed by a user terminal (UE) may include receiving a beam reference signal (BRS) used for beam management from an enhanced Node B (eNB), when a beam failure event is detected, transmitting a control signal for a beam failure recovery request to the eNB; and, when beam reporting is triggered, reporting a beam measurement result to the eNB in a specific resource.

公开(公告)号：US11689260B2

公开(公告)日：2023-06-27

申请号：US17955141

申请日：2022-09-28

Applicant: LG ELECTRONICS INC.

Inventor： Haewook Park ,  Kijun Kim ,  Minki Ahn

IPC: H04B7/0456 ,  H04B7/06 ,  H04L1/16 ,  H04W72/12 ,  H04B7/0417 ,  H04L1/1607 ,  H04L25/03 ,  H04W40/06

CPC classification number: H04B7/0473 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/0486 ,  H04B7/0626 ,  H04B7/0663 ,  H04L1/1614 ,  H04L25/03923 ,  H04W40/06 ,  H04W72/1226

Abstract: A method for transmitting channel state information performed by a User Equipment (UE) may include receiving, from a base station, a bitmap for configuring codebook subset restriction (CSR) and reporting, to the base station, Channel State Information (CSI), when a number of antenna ports is configured as 16 or more and a number of layers associated with a rank indicator (RI) in the CSI is 3 or 4, a unit of multiple bits in a bitmap for configuring the CSR is associated with each precoder, and a reporting of precoding matrix indicator (PMI) corresponding to the precoder associated with the multiple bits is restricted in the CSI, when the CSR is indicated in any one of the multiple bits, and each bit in the bitmap for configuring the CSR is associated with each precoder.

公开(公告)号：US11677526B2

公开(公告)日：2023-06-13

申请号：US17343247

申请日：2021-06-09

Applicant: LG ELECTRONICS INC.

Inventor： Kyuseok Kim ,  Jiwon Kang ,  Kijun Kim ,  Hyungtae Kim ,  Minki Ahn ,  Sukhyon Yoon ,  Kilbom Lee

IPC: H04L5/00

CPC classification number: H04L5/0048 ,  H04L5/0007

Abstract: Disclosed herein are a method and apparatus for performing, by UE, decoding in a wireless communication system. According to the present invention, there may be a method and an apparatus for decoding data in which a demodulation reference signal (DMRS) configured by a base station according to a specific pattern is received from the base station through a DMRS symbol, the demodulation reference signal is transmitted on a specific antenna port and located on the same one or two time-axis symbols as at least one other demodulation reference signal transmitted on another antenna port, the specific pattern is determined according to characteristics of a frequency band in which the demodulation reference signal is transmitted, the demodulation reference signal is mapped to the one or two time-axis symbols using at least one of a first code division multiplexing (CDM) on a frequency axis or a second CDM on a time axis, and the data are decoded using the demodulation reference signal.