公开(公告)号：US20190159154A1

公开(公告)日：2019-05-23

申请号：US15571450

申请日：2016-05-09

Applicant: LG ELECTRONICS INC.

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

IPC: H04W56/00 ,  H04W72/04 ,  H04B7/06 ,  H04B7/0456

Abstract: Provided is a method for estimating a timing advance (TA) for each beam in a wireless communication system. First, a terminal transmits K preambles, to which K mutually different beam formings are applied, to a base station. The base station estimates the TA for each of the K received preambles. The base station can determine the final TA value of the terminal on the basis of the TAs estimated for each of the K preambles.

公开(公告)号：US20180270727A1

公开(公告)日：2018-09-20

申请号：US15753780

申请日：2016-06-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04W36/24 ,  H04W36/22 ,  H04W36/00 ,  H04W24/10 ,  H04W36/14

CPC classification number: H04W36/24 ,  H04W4/02 ,  H04W4/40 ,  H04W4/44 ,  H04W4/46 ,  H04W24/10 ,  H04W36/0009 ,  H04W36/0094 ,  H04W36/03 ,  H04W36/14 ,  H04W36/22

Abstract: In the present invention, provided is a method for performing handover, by a first terminal, in an inter-vehicle communication system. Here, the method for performing handover, by the first terminal, may comprise the steps of: receiving information on a first bias value from a base station; receiving information on a second bias value from a second terminal; and performing handover on the basis of the first bias value and the second bias value. Here, the first terminal and the second terminal are configured in the same terminal group, the first bias value is a bias value for the terminal group, and the second bias value may be a bias value for the first terminal.

公开(公告)号：US20180269953A1

公开(公告)日：2018-09-20

申请号：US15760069

申请日：2016-05-17

Applicant: LG ELECTRONICS INC.

Inventor： Jiwon KANG ,  Kitae KIM ,  Kilbom LEE ,  Kukheon CHOI ,  Heejin KIM ,  Kyuseok KIM

IPC: H04B7/06 ,  H04B7/08 ,  H04B7/0408

CPC classification number: H04B7/0695 ,  H04B7/0408 ,  H04B7/0413 ,  H04B7/0617 ,  H04B7/088

Abstract: Disclosed in the present application is a method for receiving a downlink signal by a terminal from a base station in a wireless communication system. In particular, the present invention is characterized by comprising the steps of: receiving a beam scanning subframe, configured of a plurality of preambles for scanning transmission means at first intervals, from the base station; selecting a preferred transmission beam corresponding to one preamble from among the plurality of preambles, and a preferred reception beam corresponding to the preferred transmission beam reporting information on the preferred transmission beam to the base station; and receiving the one preamble and a certain subframe configured of a downlink physical channel beam formed by the preferred transmission beam at second intervals within the first interval.

公开(公告)号：US20180227938A1

公开(公告)日：2018-08-09

申请号：US15506709

申请日：2015-02-12

Applicant: LG ELECTRONICS INC.

Inventor： Eunjong LEE ,  Kitae KIM ,  Giwon PARK ,  Jaehoon CHUNG ,  Jiwon KANG ,  Hyeyoung CHOI

IPC: H04W72/12 ,  H04W76/10 ,  H04W72/04

CPC classification number: H04W72/1268 ,  H04L5/00 ,  H04L27/26 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/1284 ,  H04W76/10

Abstract: Provided are a method and apparatus for requesting scheduling for an uplink data transmission in a wireless communication system. The method may include receiving, by a user equipment, an additional scheduling request (SR) resource configuration information including additional SR resource information and buffer size information configured to the additional SR resource in addition to a default SR resource from a base station, transmitting, by the user equipment, an SR through the default SR resource or the additional SR resource to the base station, receiving, by the user equipment, an uplink resource allocation information which is determined according to the resource in which the SR is transmitted from the base station, and transmitting, by the user equipment, the uplink data to the base station through a physical uplink shared channel (PUSCH) resource which is allocated by the uplink resource allocation information.

公开(公告)号：US20180227022A1

公开(公告)日：2018-08-09

申请号：US15748344

申请日：2016-03-17

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/0456 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/04 ,  H04B7/06 ,  H04B7/0617

Abstract: Disclosed in the present application is a method by which a terminal receives a signal, to which hybrid beamforming is applied, from a base station in a wireless communication system. More specifically, the method comprises the steps of: acquiring information on a first precoder for first beamforming of the hybrid beamforming; generating information on a precompensation precoder for the first beamforming by using the information on the first precoder; reporting the information on the precompensation precoder to the base station; and receiving, from the base station, a signal to which the precompensation precoder, the first beamforming, and second beamforming are applied, wherein the precompensation precoder adjusts, to zero degrees, a boresight direction of a signal to which the first precoder for the first beamforming is applied, and a second precoder for the second beamforming is configured to enable the signal to be transmitted in a final boresight direction on the basis of a boresight direction of zero degrees.

公开(公告)号：US20180192398A1

公开(公告)日：2018-07-05

申请号：US15741499

申请日：2015-12-02

Applicant: LG ELECTRONICS INC.

Inventor： Eunjong LEE ,  Heejeong CHO ,  Genebeck HAHN ,  Kitae KIM ,  Ilmu BYUN

IPC: H04W72/04 ,  H04L1/18 ,  H04W72/14 ,  H04L1/08 ,  H04L1/00

CPC classification number: H04W72/04 ,  H04L1/0061 ,  H04L1/08 ,  H04L1/18 ,  H04L1/1861 ,  H04L5/00 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/14

Abstract: The present description provides a method for transmitting and receiving uplink (UL) data in a wireless communication system. A method, which is carried out by means of a terminal, comprises the steps of: receiving a first uplink grant from a base station; transmitting, on the basis of the first uplink grant, first uplink data to the base station; receiving an HARQ response to the first uplink data from the base station; transmitting second uplink data to the base station by means of retransmission resources allocated for the retransmission of the first uplink data; and transmitting, to the base station, control information which indicates whether the second uplink data is retransmission data of the first uplink data or new data generated by means of a particular event.

公开(公告)号：US20180145861A1

公开(公告)日：2018-05-24

申请号：US15570555

申请日：2016-01-20

Applicant: LG Electronics Inc.

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

IPC: H04L27/26

CPC classification number: H04L27/2643 ,  H04J11/0069 ,  H04L27/2613 ,  H04L27/2656 ,  H04L27/2657 ,  H04L27/2692 ,  H04W56/0035 ,  H04W74/004

Abstract: Disclosed is a synchronization signal receiving method comprising a step of respectively receiving, from a plurality of base stations, a plurality of synchronization signals generated by using a predetermined repetition frequency, sequence, and phase pattern vector, measuring a start timing of a frame, a sequence index, and an index of the phase pattern vector by using the plurality of synchronization signals with respect to each of the plurality of base stations, selecting the base station having the highest correlation value calculated as a result of the measurement among the plurality of base stations, and establishing a connection with the selected base station, wherein the phase pattern vector repeatedly changes the phase of the sequence at the repetition frequency.

公开(公告)号：US20180077595A1

公开(公告)日：2018-03-15

申请号：US15564656

申请日：2015-08-05

Applicant: LG ELECTRONICS INC.

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

IPC: H04W24/10 ,  H04L5/00 ,  H04W8/02 ,  H04W8/26

CPC classification number: H04W24/10 ,  H04L5/0055 ,  H04W8/02 ,  H04W8/26 ,  H04W16/28 ,  H04W28/0226 ,  H04W36/30 ,  H04W72/085 ,  H04W88/02

Abstract: The present invention relates to a method for efficiently supporting communication for vehicles in a next-generation wireless communication system and a device for the same. To this end, a user equipment (UE) receives signals from a single antenna of a network through a plurality of antenna units which are located in dispersed locations of the UE, determines whether or not a mobility-related event of the UE has occurred by means of the signals received through the plurality of antenna units, and, if a mobility-related event of the UE has occurred, transmits an event occurrence report to the network, wherein the occurrence of the mobility-related event of the UE is determined in accordance with the Rx power of the signals and the radio wave distribution between the network and the UE and, more particularly, the angle of arrival (AoA) of the signals received through the plurality of antenna units.

公开(公告)号：US20180054244A1

公开(公告)日：2018-02-22

申请号：US15561001

申请日：2015-07-24

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04B7/04 ,  G01S7/52

CPC classification number: H04B7/0626 ,  G01S7/52095 ,  H04B7/024 ,  H04B7/0421 ,  H04B7/043 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0486 ,  H04B7/065 ,  H04B7/086

Abstract: The present specification pertains to a method by which a terminal feeds back CSI information in a wireless communication system to which 3D beamforming is applied, the method comprising the steps of: receiving a pilot signal from a base station; setting either a first CSI transmission mode or a second CSI transmission mode; and feeding back CSI information on the basis of the set CSI transmission mode. Here, a period and offset of the CSI information to be fed back can be preset regardless of the CSI transmission mode.

公开(公告)号：US20180042050A1

公开(公告)日：2018-02-08

申请号：US15549361

申请日：2016-02-15

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04W74/00

CPC classification number: H04W74/0825 ,  H04J13/0062 ,  H04W74/008 ,  H04W74/0858 ,  H04W74/0875 ,  H04W76/10 ,  H04W76/27 ,  H04W88/08

Abstract: Provided is a method for detecting whether a random access channel (RACH) preamble collision occurs in a wireless communication system. An evolved Node B (eNB) receives, from a first user equipment (UE), a first RACH preamble generated by using a combination of a plurality of sequences, and also receives, from a second UE, a second RACH preamble generated by using one sequence. The eNB detects whether a collision occurs between the first RACH preamble and the second RACH preamble on the basis of the received patterns of the first RACH preamble and the second RACH preamble, wherein the received patterns of the first RACH preamble and the second RACH preamble are based on channel delay caused by multiple paths.