公开(公告)号：US11528172B2

公开(公告)日：2022-12-13

申请号：US16632865

申请日：2018-07-23

Applicant: LG ELECTRONICS INC.

Inventor： Jiwon Kang ,  Hyungtae Kim ,  Haewook Park ,  Kilbom Lee ,  Hyunsu Cha

IPC: H04L27/26 ,  H04B7/06 ,  H04L5/00

Abstract: The present specification provides a method for multiplexing a demodulation reference signal (DMRS) and a channel state information-reference signal (CSI-RS) in a wireless communication system. Specifically, a method performed by a terminal may comprise the steps of: receiving a DMRS from a base station; and receiving a CSI-RS from the base station, wherein frequency-division multiplexing (FDM) between the DMRS and the CSI-RS in a particular symbol is determined on the basis of a DMRS type.

公开(公告)号：US11476992B2

公开(公告)日：2022-10-18

申请号：US16759419

申请日：2018-11-15

Applicant: LG Electronics Inc.

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

IPC: H04L5/00 ,  H04B1/692

Abstract: A method for transmitting a sounding reference signal (SRS) by a terminal comprises the steps of: receiving, from a base station, the number of SRS repetition symbols, group hopping patterns, sequence hopping patterns, pattern selection information, and hopping selection information; generating an SRS sequence by applying a group hopping pattern and a sequence hopping pattern selected according to the pattern selection information and the hopping selection information; and transmitting the SRS on the basis of the SRS sequence, wherein the group hopping patterns include a group hopping pattern calculated using the number of SRS repetition symbols, the sequence hopping patterns include a sequence hopping pattern calculated using the number of SRS repetition symbols, and the hopping selection information selects whether to activate group hopping and sequence hopping.

公开(公告)号：US11343042B1

公开(公告)日：2022-05-24

申请号：US16956519

申请日：2018-12-21

Applicant: LG ELECTRONICS INC.

Inventor： Kukheon Choi ,  Jiwon Kang ,  Kyuseok Kim ,  Kilbom Lee ,  Jaehoon Chung

IPC: H04L5/00 ,  H04B1/692

Abstract: A method for transmitting and receiving a radio signal in a wireless communication system and a device therefor are disclosed. A method for receiving, by a base station, a sounding reference signal (SRS) in the wireless communication system includes transmitting, to a user equipment (UE), configuration information for transmission of the SRS; and receiving, from the UE, the SRS transmitted based on the configuration information. The configuration information includes group hopping information and sequence hopping information for sequence hopping of the SRS. A sequence length of the SRS is based on a product of a number of candidates of the group hopping information and a number of candidates of the sequence hopping information. The number of candidates of the group hopping information and the number of candidates of the sequence hopping information are configured based on a number of neighboring cells of the base station.

公开(公告)号：US11184098B2

公开(公告)日：2021-11-23

申请号：US16496391

申请日：2017-03-22

Applicant: LG ELECTRONICS INC.

Inventor： Kukheon Choi ,  Kyuseok Kim ,  Minki Ahn ,  Kilbom Lee

IPC: H04L5/00 ,  H04J11/00 ,  H04B17/345 ,  H04B7/08 ,  H04B7/06

Abstract: A method for a base station to control inter-cell interference in a wireless communication system comprises: a step in which a base station receives, in a predefined physical resource region, a demodulation reference signal (DMRS) or a sounding reference symbol (SRS) from a terminal in a cell to which the base station belongs; a step of measuring interference in a resource on which the DMRS or the SRS has been transmitted, on the basis of an interference measurement method corresponding to the predefined physical resource region; and a step of determining the terminal as a victim terminal associated with the predefined physical resource region, if the intensity of the interference measured is greater than a predetermined threshold, wherein the predefined physical resource region may be a first physical resource region for an uplink data transmission in the cell to which the base station belongs, or a second physical resource region for uplink beam sweeping in the cell to which the base station belongs, the first and second physical resource regions corresponding to a physical resource region for uplink beam sweeping in a neighboring cell to which a neighboring base station belongs.

公开(公告)号：US11153900B2

公开(公告)日：2021-10-19

申请号：US16099954

申请日：2018-07-10

Applicant: LG Electronics Inc.

Inventor： Kyuseok Kim ,  Hyungtae Kim ,  Haewook Park ,  Jiwon Kang ,  Kijun Kim ,  Jonghyun Park ,  Kilbom Lee

IPC: H04W72/12 ,  H04L5/00

Abstract: Disclosed is a method and apparatus for transmitting and receiving a Reference Signal (RS) performed by a User Equipment (UE) in a wireless communication system. According to the present invention, a method and apparatus includes receiving a first Dedicated Demodulation Reference Signal and a first Physical Downlink Shared Channel (PDSCH); receiving a Physical Downlink Control Channel (PDCCH) including Downlink Control Information (DCI) in relation to a configuration of the second Dedicated Demodulation Reference Signal based on the first PDSCH; and receiving the second Dedicated Demodulation Reference Signal and a second PDSCH based on the PDCCH, and the first Dedicated Demodulation Reference Signal is transmitted only on a single antenna port, and a configuration of the DCI is determined based on the maximum number of symbols to which the second Dedicated Demodulation Reference Signal is mapped.

公开(公告)号：US11153127B2

公开(公告)日：2021-10-19

申请号：US16766667

申请日：2018-11-26

Applicant: LG ELECTRONICS INC.

Inventor： Kukheon Choi ,  Jiwon Kang ,  Kyuseok Kim ,  Kilbom Lee

IPC: H04L25/02 ,  H04W76/27 ,  H04B1/7143 ,  H04B7/06 ,  H04L5/00 ,  H04W72/04

Abstract: A method for transmitting, by a terminal, a sounding reference signal (SRS) comprises: a step of, if an SRS transmission and a transmission of an uplink channel collide in a first slot, dropping the transmission of an SRS symbol colliding in the first slot and transmitting an SRS symbol not colliding in the first slot; and a step of transmitting an SRS symbol in a second slot on the basis of a hopping pattern set for the dropped SRS symbol, wherein when the transmission count of the last SRS symbol colliding in the first slot is K, the transmission count for the first SRS symbol transmitted in the second slot is K+1.

公开(公告)号：US11133853B2

公开(公告)日：2021-09-28

申请号：US16717316

申请日：2019-12-17

Applicant: LG Electronics Inc.

Inventor： Jiwon Kang ,  Jonghyun Park ,  Kilbom Lee ,  Kijun Kim ,  Sukhyon Yoon

IPC: H04B7/06 ,  H04L5/00 ,  H04J13/16 ,  H04W76/27 ,  H04B7/0456 ,  H04W72/04 ,  H04L27/26

Abstract: Disclosed is a method for transmitting and receiving a channel state information (CSI)-reference signal (RS) in a wireless communication system.
Specifically, the method performed by a base station may include: configuring control information indicating that an antenna port for all CSI-RS resources included in a CSI-RS resource set is same, wherein the CSI-RS resource set is used for tracking at least one of a time or a frequency; transmitting the configured control information to a user equipment (UE); and transmitting the CSI-RS to the UE through all the CSI-RS resources.
In doing so, the UE is capable of performing time/frequency tracking more precisely.

公开(公告)号：US11128360B2

公开(公告)日：2021-09-21

申请号：US16717336

申请日：2019-12-17

Applicant: LG Electronics Inc.

Inventor： Jiwon Kang ,  Jonghyun Park ,  Kilbom Lee ,  Kijun Kim ,  Sukhyon Yoon

IPC: H04B7/06 ,  H04L5/00 ,  H04J13/16 ,  H04W76/27 ,  H04B7/0456 ,  H04W72/04 ,  H04L27/26

Abstract: Disclosed is a method for transmitting and receiving a channel state information (CSI)-reference signal (RS) in a wireless communication system.
Specifically, the method performed by a base station may include: configuring control information indicating that an antenna port for all CSI-RS resources included in a CSI-RS resource set is same, wherein the CSI-RS resource set is used for tracking at least one of a time or a frequency; transmitting the configured control information to a user equipment (UE); and transmitting the CSI-RS to the UE through all the CSI-RS resources.
In doing so, the UE is capable of performing time/frequency tracking more precisely.

公开(公告)号：US11095422B2

公开(公告)日：2021-08-17

申请号：US16521510

申请日：2019-07-24

Applicant: LG ELECTRONICS INC.

Inventor： Dongkyu Kim ,  Hyunsoo Ko ,  Kilbom Lee ,  Kukheon Choi ,  Kwangseok Noh ,  Sangrim Lee

IPC: H04L15/00 ,  H04L5/14 ,  H04L27/26 ,  H04L25/02 ,  H04B15/00 ,  H04W84/04

Abstract: A method for estimating, by a device using an FDR scheme, a non-linear self-interference signal channel comprises a step of estimating a non-linear self-interference signal channel using a first sequence set included in a predefined first sequence set, wherein the predefined first sequence set is defined in consideration of non-linear self-interference signal components in an RF transmission chain and an RF reception chain of the device.

公开(公告)号：US10912112B2

公开(公告)日：2021-02-02

申请号：US16291870

申请日：2019-03-04

Applicant: LG Electronics Inc.

Inventor： Jonghyun Park ,  Kilbom Lee

IPC: H04W72/12 ,  H04L5/00 ,  H04L27/26 ,  H04L25/02 ,  H04W88/02

Abstract: An uplink transmission and reception method and a device for the same in a wireless communication system are disclosed. More specifically, a method for performing an uplink transmission in a wireless 5 communication system by a user equipment includes receiving, from a base station, downlink control information (DCI) for scheduling of an uplink shared channel; and performing the uplink transmission via the uplink shared channel based on the DCI, wherein the DCI includes a sounding reference signal resource indication (SRS resource indication, SRI) field carrying a SRI and a demodulation reference signal (DMRS) related field, wherein a number of layers for the uplink 10 transmission is determined based on the SRI field, wherein a size of the DMRS related field equally configured for each of candidates of the number of layers.