公开(公告)号：US10659127B2

公开(公告)日：2020-05-19

申请号：US16099403

申请日：2016-05-12

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04B7/08

Abstract: The present invention relates to a wireless access system supporting millimeter wave (mmWave), and provides a transmission/reception beam scanning method, a channel state information feedback method, and devices supporting the same. According to an embodiment of the present invention, a method for scanning a transmission/reception beam by a millimeter wave (mmWave) terminal in a wireless access system supporting mmWave may comprise the steps of: performing long term beam scanning in period N; transmitting feedback information including a first transmission beam identifier (Tx beam ID) acquired through the long term beam scanning to a mmWave base station; receiving an upper layer signal including reception beam scanning configuration information allocated for short term beam scanning; and performing the short term beam scanning in a reception beam scanning area on the basis of the reception beam scanning configuration information.

公开(公告)号：US10555363B2

公开(公告)日：2020-02-04

申请号：US15738429

申请日：2016-01-20

Applicant: LG ELECTRONICS INC.

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

IPC: H04W76/25 ,  H04W76/15 ,  H04W74/08 ,  H04L12/24 ,  H04W72/04 ,  H04W4/06 ,  H04W48/16 ,  H04W88/06 ,  H04W88/08 ,  H04W4/40 ,  H04W84/00

Abstract: Disclosed is a network connection method using a virtual UE system, comprising: establishing a connection with a base station with respect to a first DU group comprising one or more DUs; requesting a base station for an establishment of a connection with a second DU group comprising one or more Dus through an uplink channel assigned to the first DU group; and transmitting, to the base station through the uplink channel assigned to the second DU group, information informing that the connection with the second group has been established.

公开(公告)号：US10548171B2

公开(公告)日：2020-01-28

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 ,  H04W84/12

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：US20190394827A1

公开(公告)日：2019-12-26

申请号：US16479149

申请日：2017-01-20

Applicant: LG Electronics Inc.

Inventor： Heejin Kim ,  Ilmu Byun ,  Heejeong Cho ,  Genebeck Hahn ,  Jiwon Kang

IPC: H04W76/19 ,  H04W24/10 ,  H04W76/18 ,  H04W4/46 ,  H04W72/04 ,  H04W80/08 ,  H04L5/00

Abstract: The present invention provides a method for re-establishing a link between terminals in a wireless communication system, and a device therefor. Particularly, the method for a first terminal to re-establish a link with another terminal in a wireless communication system comprises: a step of determining a radio link failure with respect to a radio link with a second terminal; a step of transmitting a first message, requesting measurement for re-establishing the radio link with the second terminal, to a base station on the basis of the determined radio link failure; a step of receiving a second message, including information on the configuration of the measurement, from the base station in response to the transmitted first message; and a step of transmitting, to the base station, a third message including a report on the radio link with the second terminal which has been re-established by performing the measurement based on the information on the configuration.

公开(公告)号：US10484899B2

公开(公告)日：2019-11-19

申请号：US15564488

申请日：2015-08-05

Applicant: LG ELECTRONICS INC.

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

IPC: H04W28/04 ,  H04W24/10 ,  H04W16/28 ,  H04W36/30 ,  H04W8/02 ,  H04W72/08 ,  H04L5/00 ,  H04W8/26 ,  H04W88/02 ,  H04W28/02

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 network through a plurality of antenna units which are located in dispersed locations of the UE, determines, through a central unit thereof, whether a mobility related event of the UE has occurred through the signals received through the plurality of antenna units and transmits an event occurrence report to the network when the mobility related event of the UE has occurred, wherein whether the mobility related event of the UE has occurred is determined in consideration of receive (Rx) power of the signals received through the plurality of antenna units and a ray distribution between the network and the UE.

公开(公告)号：US10419095B2

公开(公告)日：2019-09-17

申请号：US15529958

申请日：2015-06-23

Applicant: LG ELECTRONICS INC.

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

IPC: H04L12/28 ,  H04B7/06 ,  H04B7/0456 ,  H04B7/10 ,  H04L5/00 ,  H04B17/24 ,  H04B7/0404 ,  H04W72/12 ,  H04B7/0413 ,  H04W88/02 ,  H04W88/08 ,  H04B17/309 ,  H04B17/318 ,  H04B17/345

Abstract: The present application discloses a method for a terminal reporting channel state information to a base station in a wireless communication system. Specifically, the method comprises the steps of: receiving, from a base station, a first reference signal corresponding to a row of a transmission antenna array, and a second reference signal corresponding to a column of the transmission antenna array; receiving, from the base station, a cross polarization characteristics measurement indicator; and reporting, to the base station, channel state information comprising a first precoder corresponding to the first reference signal and a second precoder corresponding to the second reference signal, wherein the channel state information comprises cross polarization characteristics information between antenna ports that have the same indexes, the antenna ports being among antenna ports having the first reference signal and the second reference signal transmitted.

公开(公告)号：US10367562B2

公开(公告)日：2019-07-30

申请号：US15555929

申请日：2015-12-16

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04B7/0413

Abstract: A method of transmitting a signal, which is transmitted by a transmitting end in a wireless communication system, is disclosed in the present specification. Specifically, the method includes the steps of receiving Doppler information on a plurality of transmission beams from a receiving end; selecting a beam combination using the received Doppler information, wherein the beam combination is selected from a plurality of beam combinations depending on effective Doppler spread values of the beam combinations, wherein each of the beam combinations consists of two or more transmission beams among the plurality of transmission beams; and transmitting the signal to the receiving end using at least one transmission beam included in the selected beam combination.

公开(公告)号：US10341156B2

公开(公告)日：2019-07-02

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: H04J11/00 ,  H04L27/26 ,  H04W56/00 ,  H04W74/00

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：US10340988B2

公开(公告)日：2019-07-02

申请号：US15750375

申请日：2016-06-29

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/0456 ,  H04B7/06 ,  H04W16/28

Abstract: The present invention relates to a method for transmitting channel information to a base station in a wireless communication system, and a device therefor, the method comprising the steps of: receiving information on a user equipment (UE) group in which a specific UE is included; receiving, from a representative UE of the UE group, first control information comprising first beam information; determining second beam information on the basis of the first beam information; and transmitting, to a base station, second control information comprising differential information between the determined second beam information and the first beam information.

公开(公告)号：US10291306B2

公开(公告)日：2019-05-14

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: G01S7/52 ,  H04B7/06 ,  H04B7/0417 ,  H04B7/0426 ,  H04B7/0456 ,  H04B7/08 ,  H04B7/024

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.