公开(公告)号：US20190181925A1

公开(公告)日：2019-06-13

申请号：US16065704

申请日：2017-01-03

Applicant: LG Electronics Inc.

Inventor： Jiwon KANG ,  Hanbyul SEO ,  Kijun KIM ,  Hyungtae KIM ,  Youngtae KIM ,  Kilbom LEE

IPC: H04B7/0417 ,  H04B7/0456 ,  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：US20190007118A1

公开(公告)日：2019-01-03

申请号：US15745283

申请日：2015-08-10

Applicant: LG ELECTRONICS INC. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kilbom LEE ,  Changho SUH ,  Seiyun SHIN ,  Jaewoong CHO ,  Jiwon KANG

IPC: H04B7/06 ,  H04B17/24 ,  H04B17/345 ,  H04B17/364

Abstract: Disclosed is a communication method using outdated channel state information in a network environment having a G-cell and 2-user terminal, by allowing a terminal and base stations to transmit and receive data symbols for G time slots, and to transmit and receive a reconfiguration signal for an additional one time slot.

公开(公告)号：US20180359071A1

公开(公告)日：2018-12-13

申请号：US15780087

申请日：2017-09-29

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom LEE ,  Hyunsoo KO ,  Kyuseok KIM ,  Kijun KIM

IPC: H04L5/00 ,  H04L7/00

Abstract: A method for receiving control information for a reference signal related to phase noise estimation by a user equipment (UE) comprises receiving control information indicating whether the reference signal related to the phase noise estimation is transmitted; when the control information indicates that the reference signal is transmitted, receiving the reference signal based on the control information; wherein when a size of a traffic resource block (RB) for the UE is greater than a predetermined value, the control information indicates the reference signal is transmitted.

公开(公告)号：US20180263025A1

公开(公告)日：2018-09-13

申请号：US15758332

申请日：2016-09-09

Applicant: LG ELECTRONICS INC.

Inventor： Heejin KIM ,  Jiwon KANG ,  Kilbom LEE ,  Kitae KIM

IPC: H04W72/04 ,  H04W4/40 ,  H04W72/12

CPC classification number: H04W72/0406 ,  H04B7/00 ,  H04B7/022 ,  H04B7/0404 ,  H04B7/0617 ,  H04W4/40 ,  H04W4/44 ,  H04W72/121 ,  H04W72/1273 ,  H04W84/00 ,  H04W84/005 ,  H04W88/02 ,  H04W88/06

Abstract: Provided is a method and device for performing communication with a virtual terminal in a wireless communication system. A base station determines a second plurality of virtual terminals, to which downlink data is to be transmitted, among a first plurality of virtual terminals constituting an actual terminal, transmits control information for transmitting the downlink data to at least one virtual terminal of the second plurality of virtual terminals, and transmits the downlink data to the second plurality of terminals. The actual terminal may be a vehicle terminal, and each of the first plurality of virtual terminals may comprise at least one of a plurality of distributed antenna arrays installed in the vehicle terminal.

公开(公告)号：US20180255603A1

公开(公告)日：2018-09-06

申请号：US15760007

申请日：2016-09-05

Applicant: LG ELECTRONICS INC.

Inventor： Heejin KIM ,  Jiwon KANG ,  Kitae KIM ,  Kilbom LEE

IPC: H04W76/25 ,  H04W4/46 ,  H04W76/11 ,  H04W8/24 ,  H04W24/10

CPC classification number: H04W76/25 ,  H04B7/024 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0469 ,  H04B7/0486 ,  H04W4/46 ,  H04W8/24 ,  H04W8/26 ,  H04W24/10 ,  H04W60/00 ,  H04W76/11 ,  H04W88/02

Abstract: The present specification can provide a method by which a terminal performing communication controls a virtual terminal. The method for controlling the virtual terminal can comprise the steps of: connecting with a base station; receiving a connection re-establishment command message from the connected base station; and registering or removing the virtual terminal on the basis of the connection re-establishment command message.

公开(公告)号：US20180212725A1

公开(公告)日：2018-07-26

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 ,  H04B7/0452 ,  H04L27/26

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：US20180205437A1

公开(公告)日：2018-07-19

申请号：US15516571

申请日：2015-06-26

Applicant: LG ELECTRONICS INC.

Inventor： Kitae KIM ,  Jiwon KANG ,  Kilbom LEE ,  Heejin KIM ,  Dongkyu KIM

IPC: H04B7/06

CPC classification number: H04B7/0621 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/0617 ,  H04B7/0639

Abstract: A method by which a base station receives feedback information on beamforming in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: transmitting an omni-directional beam formed uniformly in all directions, on the basis of a non-precoded first signal; transmitting a plurality of directional beams through a plurality of antenna ports on the basis of second signals precoded in different directions; and receiving feedback information from a terminal, wherein the feedback information includes a gain difference between a first directional beam among the plurality of directional beams and the omni-directional beam, and an index of a first antenna port used in transmitting the first directional beam among the plurality of antenna ports.

公开(公告)号：US20180159606A1

公开(公告)日：2018-06-07

申请号：US15576434

申请日：2016-01-27

Applicant: LG ELECTRONICS INC.

Inventor： Heejin KIM ,  Jiwon KANG ,  Kitae KIM ,  Kilbom LEE ,  Kungmin PARK

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

Abstract: The present specification relates to a method for transmitting and receiving a signal to/from a base station by a terminal in an inter-vehicle communication system, wherein the method for transmitting a signal may comprise: a step for receiving a reference signal; a step for feeding-back channel information on the basis of the received reference signal; and a step for receiving data on the basis of the channel information, and wherein the terminal includes a plurality of distributed antenna units (DUs), and if selection of whether each of the plurality of DUs is activated is possible, the channel information may include DU index set information and channel state information (CSI).

公开(公告)号：US20180152970A1

公开(公告)日：2018-05-31

申请号：US15577494

申请日：2016-05-19

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom LEE ,  Jiwon KANG ,  Kitae KIM ,  Kungmin PARK ,  Heejin KIM

IPC: H04W74/08 ,  H04B7/06

Abstract: Provided is a method for performing random access, the method comprising: obtaining information associated with a phase pattern vector set and information associated with a sequence set to be used during a random access process; selecting one phase pattern vector corresponding to the number of repetitive transmissions of an RACH signal, among a plurality of phase pattern vectors included in the phase pattern vector set; transmitting, to a base station, an RACH signal during a time section corresponding to the number of repetitive transmissions of an RACH signal, at a predetermined transmission point in the entire time section corresponding to the maximum number of repetitive transmissions; and receiving, from the base station, an RACH response signal indicating an estimated sequence, an estimated phase pattern vector, and an estimated transmission point.

公开(公告)号：US20180123758A1

公开(公告)日：2018-05-03

申请号：US15324604

申请日：2015-08-19

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom LEE ,  Jiwon KANG ,  Jinsoo CHOI ,  Wookbong LEE ,  Dongguk LIM ,  Hangyu CHO ,  Eunsung PARK

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0051 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0064 ,  H04L5/0082 ,  H04W72/0446 ,  H04W72/048 ,  H04W72/121 ,  H04W72/14 ,  H04W84/12

Abstract: Disclosed are a transmitter and a pilot sequence transmission method comprising: generating an asymmetric sequence set comprising pilot sequences which have been shifted by irregular intervals; mapping, to the pilot sequences, additional information that is shown by using shared bits and non-shared bits; and selecting any one pilot sequence and transmitting same.