公开(公告)号：US10911193B2

公开(公告)日：2021-02-02

申请号：US15329227

申请日：2015-10-15

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Wookbong Lee ,  Jinsoo Choi ,  Hangyu Cho ,  Jiwon Kang ,  Kilbom Lee

IPC: H04L5/00 ,  H04L27/26 ,  H04B7/0452 ,  H04W84/12

Abstract: The present invention relates to a method for transmitting and receiving a Physical Protocol Data Unit (PPDU) and an apparatus for supporting the same. Particularly, a method for transmitting a Physical Protocol Data Unit (PPDU) performed by an apparatus in a wireless communication system may include generating a High Efficiency-Short Training Field (HE-STF) sequence in a frequency domain throughout a transmission bandwidth of the PPDU and transmitting the PPDU that includes an HE-STF field which is constructed based on the HE-STF sequence, wherein the HE-STF sequence may be mapped to a data tone except a direct current tone and a guard tone, and wherein a non-zero value may be mapped to all data tones that include a tone index which is a multiple of a predetermined value in the data tone.

公开(公告)号：US10886956B2

公开(公告)日：2021-01-05

申请号：US16518678

申请日：2019-07-22

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom Lee ,  Jiwon Kang ,  Kijun Kim ,  Kyuseok Kim ,  Kunil Yum

IPC: H04B1/10 ,  H04B7/0456 ,  H04B7/06 ,  H04L1/00 ,  H04L5/00

Abstract: A method for operating a user equipment in a wireless communication is provided as an embodiment of the present invention. The method may include: receiving modulation and coding scheme (MCS) information for each of two or more codewords from a base station (BS); determining a demodulation reference signal (DMRS) antenna port to which a phase tracking reference signal (PTRS) antenna port is mapped based on the MCS information; and receiving a PTRS based on the DMRS antenna port, wherein a DMRS antenna port with the lowest index among one or more DMRS antenna ports included in a codeword with the highest MCS among the two or more codewords may be determined as the DMRS antenna port.

公开(公告)号：US10802129B2

公开(公告)日：2020-10-13

申请号：US15551435

申请日：2016-01-20

Applicant: LG Electronics Inc.

Inventor： Kilbom Lee ,  Jiwon Kang ,  Kitae Kim ,  Kungmin Park ,  Heejin Kim

IPC: H04B1/10 ,  G01S13/50 ,  H04L25/03 ,  H04L27/26 ,  H04J11/00 ,  H04W72/12 ,  H04W84/02

Abstract: Disclosed is a Doppler measurement method comprising: generating a first function defined by reception signals in two consecutive subcarriers for a specific OFDM symbol; generating a second function defined on the basis of the signs and sizes of a real part and an imaginary part of the first function; repeatedly performing a process of generating the first function and the second function for all of a set of OFDM symbols; and determining, as a Doppler value, the phase of a third function obtained by adding the results of repeatedly performing the process.

公开(公告)号：US20200304253A1

公开(公告)日：2020-09-24

申请号：US16646907

申请日：2018-09-27

Applicant: LG Electronics Inc.

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

IPC: H04L5/00 ,  H04B7/06 ,  H04B7/0417 ,  H04B7/024 ,  H04W8/00

Abstract: A method for receiving feedback information by a first moving object may comprise the steps of: transmitting a sidelink sounding reference signal (SRS) to a second moving object through each of distributed transmit antennas; receiving, from the second moving object, feedback information including first information associated with the similarity in coherent time between each of distributed receive antennas of the second moving object; and setting a transmission period of the sidelink SRS on the basis of the feedback information.

公开(公告)号：US10785005B2

公开(公告)日：2020-09-22

申请号：US16575170

申请日：2019-09-18

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom Lee ,  Hyunsoo Ko ,  Jiwon Kang ,  Kyuseok Kim ,  Kijun Kim

IPC: H04L5/00 ,  H04W72/08 ,  H04W24/08 ,  H04L1/00 ,  H04W48/12

Abstract: According to an embodiment of the present specification, provided is a method for transmitting a signal that allows a user equipment to cancel phase noise by a base station in an mmWave communication system. In this case, the method may include: generating a PTRS for estimating phase noise of a downlink signal; transmitting PTRS power boosting level information for the PTRS to the user equipment via downlink signaling; and transmitting the PTRS via downlink signaling based on the PTRS power boosting level information. In this case, the PTRS power boosting level information may be determined based on at least one of MCS level and PRB size.

公开(公告)号：US10763930B2

公开(公告)日：2020-09-01

申请号：US16279544

申请日：2019-02-19

Applicant: LG Electronics Inc.

Inventor： Jiwon Kang ,  Hanbyul Seo ,  Kijun Kim ,  Hyungtae Kim ,  Youngtae Kim ,  Kilbom Lee

IPC: H04B7/06 ,  H04B7/0404 ,  H04B7/0456 ,  H04L5/00 ,  H04W72/04 ,  H04B7/0417 ,  H04W72/08

Abstract: Disclosed in the present application is a method for transmitting, by a terminal, an uplink signal to a base station through a plurality of antenna ports in a wireless communication system. Specifically, the method comprises the steps of: transmitting, to the base station, uplink reference signals corresponding to the plurality of antenna ports and antenna port grouping information: receiving, from the base station, information on an uplink precoder, which is determined on the basis of the uplink reference signals and the antenna port group information; precoding the uplink signal using the information on the uplink precoder; and transmitting the precoded uplink signal to the base station, wherein the antenna port grouping information comprises information on antenna port groups comprising the plurality of antenna ports and information of the signal distortion level between the antenna port groups.

公开(公告)号：US10750565B2

公开(公告)日：2020-08-18

申请号：US16664014

申请日：2019-10-25

Applicant: LG ELECTRONICS INC.

Inventor： Heejin Kim ,  Jiwon Kang ,  Kitae Kim ,  Kilbom Lee

IPC: H04W76/25 ,  H04W76/10 ,  H04W8/24 ,  H04W60/00 ,  H04W88/02 ,  H04W24/10 ,  H04W4/46 ,  H04B7/0452 ,  H04B7/0456 ,  H04W8/26 ,  H04B7/024 ,  H04W76/11 ,  H04B7/0413

Abstract: A method by which a user equipment (UE) performing communication controls a virtual UE, includes transmitting, to a base station (BS), at least one of information on the UE or information on a service provided by the UE, wherein the BS determines whether the virtual UE is registered or removed, based on the at least one of the information on the UE or the information on the service provided by the UE; receiving, from the BS, a connection reconfiguration command message, wherein the connection reconfiguration command message includes information on a determination of the BS of whether the virtual UE is registered or removed; and registering or removing the virtual UE based on the information on the determination of the BS included in the connection reconfiguration command message.

公开(公告)号：US10701649B2

公开(公告)日：2020-06-30

申请号：US15773423

申请日：2016-10-06

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom Lee ,  Jiwon Kang ,  Kitae Kim ,  Heejin Kim

IPC: H04W56/00 ,  H04B7/06 ,  H04J11/00 ,  H04B7/0456 ,  H04W48/08

Abstract: Disclosed are a method for transmitting a synchronization signal and a base station therefor, the method comprising: generating a codebook including a second precoder defined by concatenation of first precoders, which corresponds to a plurality of antenna subarrays, respectively; generating a synchronization sequence by multiplying, by a weight, the same reference sequence input over a plurality of time intervals, for each antenna subarray; and repeatedly transmitting a synchronization signal generated by applying the second precoder to the generated synchronization sequence, through the plurality of antenna subarrays, wherein the reference sequence is different for each of the plurality of antenna subarrays, and a combination of the reference sequence and the weight indicates additional information transmitted to a terminal.

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：US10659126B2

公开(公告)日：2020-05-19

申请号：US15558150

申请日：2015-07-27

Applicant: LG ELECTRONICS INC.

Inventor： Heejin Kim ,  Jiwon Kang ,  Kitae Kim ,  Kilbom Lee ,  Kungmin Park

IPC: H04B7/06 ,  H04B7/04 ,  H04B7/0456 ,  H04L5/00 ,  H04W72/04 ,  H04B7/00

Abstract: A method and device for feeding back channel state information (CSI) by a user equipment (UE) in a wireless communication system applied three-dimensional (3D) beamforming. The method includes: receiving a pilot signal (reference signal) from a base station; configuring a CSI transmission mode in one of a first transmission mode and a second transmission mode based on motion information of the UE; and feeding back the CSI based on the configured CSI transmission mode. The first transmission mode transmits the CSI including precoding matrix index (PMI) information for one of vertical beamforming or horizontal beamforming. The second transmission mode transmits the CSI including PMI information for both vertical beamforming and horizontal beamforming.