公开(公告)号：US09882692B2

公开(公告)日：2018-01-30

申请号：US14767234

申请日：2013-10-10

Applicant: LG ELECTRONICS INC.

Inventor： Jiwon Kang ,  Hyunsoo Ko ,  Jaehoon Chung

IPC: H04L5/00 ,  H04B7/0413 ,  H04W72/04 ,  H04W88/02

CPC classification number: H04L5/0048 ,  H04B7/0413 ,  H04L5/0035 ,  H04L5/0094 ,  H04W72/0406 ,  H04W88/02

Abstract: A method for receiving a Reference Signal (RS) at a User Equipment (UE) in a wireless communication system is disclosed. The method includes receiving information about a plurality of RSs through a high layer, and receiving the RS based on the information about the plurality of RSs from at least one node. The information about the plurality of RSs includes information indicating whether it is possible to assume quasi co-location between at least two RSs of the plurality of RSs.

公开(公告)号：US09843938B2

公开(公告)日：2017-12-12

申请号：US14424402

申请日：2013-09-02

Applicant: LG ELECTRONICS INC.

Inventor： Jiwon Kang ,  Dongcheol Kim ,  Hangyu Cho ,  Sungho Park ,  Dongguk Lim

IPC: H04W16/28 ,  H04W24/02 ,  H04B7/0404 ,  H04B7/08 ,  H04B7/04 ,  H04L5/00 ,  H04B7/06 ,  H04W88/08

CPC classification number: H04W16/28 ,  H04B7/0404 ,  H04B7/0469 ,  H04B7/0617 ,  H04B7/0689 ,  H04B7/0871 ,  H04L5/0016 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0091 ,  H04W24/02 ,  H04W88/08

Abstract: The present invention relates to a wireless communication system, and more specifically, disclosed are a method and an apparatus for virtualizing an antenna. A method for reconfiguring an antenna of a terminal in the wireless communication system, according to one embodiment of the present invention, comprises the steps of: the terminal transmitting an antenna reconfiguration request to a base station; the terminal receiving from the base station information indicating authorization of the antenna reconfiguration request; the terminal transmitting antenna reconfiguration information to the base station when the information indicating authorization indicates the authorization of the antenna reconfiguration request; and the terminal receiving from the base station information confirming the completion of reconfiguration.

公开(公告)号：US09838184B2

公开(公告)日：2017-12-05

申请号：US14779241

申请日：2013-12-16

Applicant: LG ELECTRONICS INC.

Inventor： Jiwon Kang ,  Kilbom Lee ,  Hyunsoo Ko ,  Jaehoon Chung

IPC: H04L5/00 ,  H04B7/06 ,  H04W24/10 ,  H04B7/0413 ,  H04B7/0456

CPC classification number: H04L5/0057 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0634 ,  H04W24/10

Abstract: A method and apparatus for reporting Channel State Information (CSI) by a User Equipment (UE), for fractional beamforming using a massive antenna array of a Base Station (BS) in a wireless communication system are disclosed. The method includes receiving information about a plurality of Reference Signal (RS) resources from the BS, generating CSI including a sub-precoder for at least one of the plurality of RS resources, and a Channel Quality Indicator (CQI) and a Rank Indicator (RI) for all of the plurality of RS resources, and reporting the CSI to the BS. The massive antenna array is divided by rows or columns into partitions and the plurality of RS resources correspond to the partitions.

公开(公告)号：US09838101B2

公开(公告)日：2017-12-05

申请号：US14767816

申请日：2013-08-20

Applicant: LG ELECTRONICS INC.

Inventor： Jiwon Kang ,  Sungho Park ,  Jaehoon Chung ,  Sunam Kim ,  Soocheol Kyeong ,  Jinmin Kim ,  Kitae Kim ,  Kyunghaeng Lee ,  Hyunsoo Ko

IPC: H04B7/06 ,  H04B7/024 ,  H04B7/0456

CPC classification number: H04B7/0617 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/0619 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0639 ,  H04B17/318

Abstract: A method of reporting a channel state from a user equipment in a wireless communication system and apparatus therefor are disclosed. The present invention includes receiving information on vertical beamforming angles of a serving node and a cooperation node from the serving node, generating the channel state information for a cooperative transmission mode using the information on the vertical beamforming angle, and reporting the channel state information to the serving node.

公开(公告)号：US09838094B2

公开(公告)日：2017-12-05

申请号：US15122626

申请日：2014-12-15

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom Lee ,  Jiwon Kang ,  Kitae Kim

IPC: H04B7/04 ,  H04B7/06 ,  H04W72/04 ,  H04B7/0456 ,  H04B7/0413

CPC classification number: H04B7/0456 ,  H04B7/0413 ,  H04B7/0617 ,  H04L25/03343 ,  H04L25/03968 ,  H04W72/042

Abstract: Disclosed herein is a method for generating transmitted signals. The method includes selecting a reference resource element (RE) from an RE group including a plurality of REs, generating a common precoder to be shared among the plurality of REs of the RE group based on channel information of the reference RE, generating primary signals, which are precoding signals of the plurality of REs, by applying the common precoder to transmitted data for the plurality of REs, and generating secondary signals by compensating for the primary signals of the REs except for the reference RE among the plurality of REs using channel information of the REs.

公开(公告)号：US09813133B2

公开(公告)日：2017-11-07

申请号：US14767884

申请日：2014-03-11

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsoo Ko ,  Jiwon Kang ,  Jaehoon Chung

IPC: H04B7/04 ,  H04B7/06 ,  H04B7/0456 ,  H04W72/04 ,  H04W24/10 ,  H04L5/00

CPC classification number: H04B7/0626 ,  H04B7/0456 ,  H04B7/0469 ,  H04B7/0617 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0665 ,  H04L5/0048 ,  H04W24/10 ,  H04W72/0413

Abstract: The present invention relates to a wireless communication system and, more specifically, to a method and apparatus for reporting channel state information (CSI). According to one embodiment of the present invention, the method by which a terminal of the wireless communication system reports the CSI comprises: a step of receiving a reference signal from a base station; and reporting the CSI generated using the reference signal to the base station. The CSI can include a report type indicator (RTI) for indicating whether a second domain pre-coding matrix indicator (PMI) indicating a second pre-coding matrix for a second domain is reported in a two-dimensional antenna structure defined by a first domain and the second domain is reported.

公开(公告)号：US09800304B2

公开(公告)日：2017-10-24

申请号：US15125946

申请日：2015-02-17

Applicant: LG ELECTRONICS INC.

Inventor： Kitae Kim ,  Jiwon Kang ,  Kilbom Lee

IPC: H04B7/02 ,  H04B7/0417 ,  H04B7/06 ,  H04B7/04 ,  H04B7/08

CPC classification number: H04B7/0417 ,  H04B7/046 ,  H04B7/0469 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0639 ,  H04B7/0689 ,  H04B7/0871

Abstract: A method of transmitting channel state information (CSI) for a hybrid beamforming from a user equipment in a wireless communication system according to one embodiment of the present invention may include measuring a gain of a directional beam formed with reference to a first direction and a gain of an omni-directional beam formed equivalently in all directions respectively and transmitting the CSI including a gain difference between the directional beam and the omni-directional beam to a base station, wherein a direction of a digital beamforming in the hybrid beamforming is determined in accordance with the gain difference between the directional beam and the omni-directional beam and wherein a direction of an analog beamforming in the hybrid beamforming is determined in accordance with the first direction.

公开(公告)号：US09735845B2

公开(公告)日：2017-08-15

申请号：US15159260

申请日：2016-05-19

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/0413 ,  H04L1/00

CPC classification number: H04B7/0413 ,  H04L1/0045

Abstract: The present document is for a wireless communication with reduced internal signaling burden in the distributed antenna system (DAS). In the proposed method, a user equipment (UE) receives a decoding unit, from the network, by multiple distributed unit (DUs) distributed within the UE, and decodes the decoding unit, at each of the multiple DUs. Each of the multiple DUs reports first information on the decoding result to a central unit (CU) controlling the multiple DUs, and the CU determines decoded bit values of the decoding unit based on the first information acquired from each of the multiple DUs.

公开(公告)号：US09712303B2

公开(公告)日：2017-07-18

申请号：US14891927

申请日：2014-02-21

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom Lee ,  Jiwon Kang ,  Hyunsoo Ko ,  Jaehoon Chung

IPC: H04L5/00 ,  H04B7/0413 ,  H04L29/08 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04B7/0413 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0051 ,  H04L5/0091 ,  H04L67/1044 ,  H04W72/0413

Abstract: A reference signal transmission scheme is presented. A first user equipment (UE) receives first information identifying which uplink subframe of a plurality of subframes is enabled to transmit an uplink reference signal, and receives second information identifying a sequence used for the uplink reference signal from a base station. The first information is used to identify a different uplink subframe to a first UE group including the first UE and a second UE group other than the first UE group. The second information is determined to assign different orthogonal sequences to each of UEs of the first UE group. The first UE transmits the uplink reference signal to the base station at the uplink subframe identified by the first information using the sequence identified by the second information.

公开(公告)号：US09628167B2

公开(公告)日：2017-04-18

申请号：US14895448

申请日：2014-02-20

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

Inventor： Jiwon Kang ,  Sae-Young Chung ,  Hyunsoo Ko ,  Jaehoon Chung

IPC: H01Q21/06 ,  H04B7/10 ,  H04B7/06 ,  H01Q3/26 ,  H01Q21/24 ,  H01Q21/29 ,  H01Q25/02 ,  H01Q3/00

CPC classification number: H04B7/10 ,  H01Q3/26 ,  H01Q21/24 ,  H01Q21/29 ,  H01Q25/02 ,  H04B7/0617

Abstract: A method and apparatus for beamforming using a polarized antenna in a wireless communication system are disclosed. The apparatus includes a processor configured to process a signal, and a multi-polarized antenna including a plurality of antenna elements, configured to transmit the signal. The plurality of antenna elements include an electric-field dipole antenna and a magnetic-field dipole antenna, and a current is applied to the electric-field dipole antenna and the magnetic-field dipole antenna in the same direction or in opposite directions.