公开(公告)号：US20190081844A1

公开(公告)日：2019-03-14

申请号：US16064977

申请日：2017-03-09

Applicant: LG Electronics Inc.

Inventor： Kilbom LEE ,  Jaehoon CHUNG ,  Kyuseok KIM ,  Minki AHN

IPC: H04L27/26 ,  H04L5/00 ,  H04L25/02 ,  H04B7/01 ,  H04B7/06 ,  H04J13/00

Abstract: Disclosed are a signal transmission method and a base station, the method: generating a PCRS used in order to remove phase noise from a downlink signal; mapping the PCRS at predetermined intervals on a region, in which a data channel is mapped, in a downlink resource region; and transmitting the PCRS to a terminal.

公开(公告)号：US20190036659A1

公开(公告)日：2019-01-31

申请号：US15755895

申请日：2016-07-04

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04B7/0456 ,  H04B7/0417 ,  H04B7/0408 ,  H04W72/02

CPC classification number: H04L5/0032 ,  H04B7/0408 ,  H04B7/0417 ,  H04B7/046 ,  H04B7/0686 ,  H04B7/0695 ,  H04B7/0697 ,  H04B7/0868 ,  H04L5/0026 ,  H04L5/0037 ,  H04W72/02

Abstract: The present application discloses a method for transmitting, at a transmitting end, a signal to a receiving end in a wireless communication system. Specifically, the method for transmitting a signal comprises the steps of: receiving preferred beam identifier information from a representative receiving end of a plurality of receiving ends comprising the receiving end; configuring, on the basis of the preferred beam identifier information, a first precoder for aiming the direction of the signal in a first beam direction and a second precoder for aiming the direction of the signal in the direction of the receiving end with respect to the first beam direction; and transmitting the signal to the receiving end using a hybrid beamformer comprised of the first precoder and the second precoder.

公开(公告)号：US20190028984A1

公开(公告)日：2019-01-24

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: H04W56/00 ,  H04L7/08 ,  H04L5/00 ,  H04J11/00

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：US20180324730A1

公开(公告)日：2018-11-08

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 ,  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：US20180270844A1

公开(公告)日：2018-09-20

申请号：US15532956

申请日：2015-12-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/12 ,  H04W72/08 ,  H04L5/00 ,  H04W72/04 ,  H04W72/14

Abstract: Provided is a method for transmitting control information for hybrid beamforming in a wireless communication system. A base station groups a plurality of terminals on the basis of feedback information on analog beams, and multiplexes and transmits control information of terminals within each group by using a specific time-frequency resource. A plurality of terminals can be grouped on the basis of feedback information on a plurality of analog beams through various methods. In addition, control information of terminals within each group can be multiplexed through various methods.

公开(公告)号：US20180241457A1

公开(公告)日：2018-08-23

申请号：US15753536

申请日：2016-07-29

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04W56/00 ,  H04W76/11

CPC classification number: H04B7/0639 ,  H04B7/06 ,  H04B7/0617 ,  H04B7/0695 ,  H04J13/0044 ,  H04W56/0015 ,  H04W76/11

Abstract: Disclosed are a beam scanning method and a base station, the method in which generated is a code book comprising a plurality of second precoders, defined by the weighted sums of a plurality of first precoders, and in which a plurality of synchronization signals, to which applied are second precoders that are selected from the code book and differ from each other, are transmitted to a terminal over a plurality of time intervals. The synchronization signals are used in synchronization, beam scanning and cell ID acquisition of the terminal, and each weighted sum applied to the plurality of first precoders indicates a beam ID used in the beam scanning.

公开(公告)号：US20180192464A1

公开(公告)日：2018-07-05

申请号：US15738542

申请日：2016-03-28

Applicant: LG ELECTRONICS INC.

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

IPC: H04W76/15 ,  H04B7/0413 ,  H04B7/06 ,  H04W48/20

CPC classification number: H04W76/15 ,  H04B7/0413 ,  H04B7/0697 ,  H04W48/20

Abstract: The present document is for a wireless communication using multiple antenna units based on new virtual user equipment (virtual UE) concept. A user equipment (UE), according to the present invention, receives service from a network in a wireless communication system by registering multiple antenna units of the UE as two or more virtual UEs with a first network entity of the network, wherein the first network entity is a network node for physical radio link control; and receiving the service from the network by the two or more virtual UEs. The two or more virtual UEs of the UE are recognized as one UE by network entities of the network other than the first network entity.

公开(公告)号：US20180184473A1

公开(公告)日：2018-06-28

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: H04W76/15 ,  H04W72/04 ,  H04L12/24

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：US20180183505A1

公开(公告)日：2018-06-28

申请号：US15737078

申请日：2016-01-14

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04W4/46 ,  H04B7/0452

CPC classification number: H04B7/0617 ,  H04B7/0408 ,  H04B7/0452 ,  H04B7/0626 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0695 ,  H04L5/0048 ,  H04W4/08 ,  H04W4/46

Abstract: The present specification relates to a method by which a terminal designs a hierarchical structure precoder in a vehicle-to-vehicle communication system. The method for designing a hierarchical structure precoder can comprise the steps of: receiving group information indicating a terminal group on the basis of a direction of a first-type beam; feeding back preference information on the first-type beam on the basis of the group information; receiving first-type beam information determined on the basis of the preference information; designing a hierarchical structure precoder including a first precoder and a second precoder, on the basis of the received first-type beam information; and feeding back channel information on the basis of the hierarchical structure precoder, wherein the first precoder can be precoder information on the first-type beam direction, and the second precoder can be precoder information on a second-type beam direction in the first-type beam direction.

公开(公告)号：US20180076870A1

公开(公告)日：2018-03-15

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 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04B7/0626 ,  H04B7/04 ,  H04B7/0478 ,  H04B7/06 ,  H04B7/0617 ,  H04B7/0632 ,  H04B7/0639 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0057 ,  H04W72/0413

Abstract: The present specification relates 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 (reference signal) from a base station; setting a CSI transmission mode; and feeding back the CSI information on the basis of the set CSI transmission mode, wherein in the CSI transmission mode, the CSI information can be fed back through either: a first transmission mode transmitting the CSI information including PMI information on either vertical beamforming or horizontal beamforming, or a second transmission mode transmitting the CSI information including PMI information on both the vertical beamforming and the horizontal beamforming.