公开(公告)号：US10148419B2

公开(公告)日：2018-12-04

申请号：US15571765

申请日：2016-05-03

Applicant: LG ELECTRONICS INC.

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

IPC: H04L7/04 ,  H04W72/04 ,  H04L27/26 ,  H04W24/10

Abstract: Disclosed is a method for receiving a synchronization signal, comprising: respectively receiving, from a plurality of base stations, a plurality of synchronization signals generated by using a phase pattern vector set, which is nested orthogonal and hierarchically configured; measuring a sequence index and an index of a phase pattern vector for the plurality of synchronization signals; selecting, among the plurality of base stations, a base station having the highest correlation value calculated as a measurement result; and establishing a connection with the selected base station, wherein the phase pattern vector set has different phase pattern vectors for changing a phase of a synchronization signal sequence up to a predetermined repetition number.

公开(公告)号：US10136444B2

公开(公告)日：2018-11-20

申请号：US15501819

申请日：2014-08-14

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

Inventor： Kilbom Lee ,  Changho Suh ,  Seiyun Shin ,  Jaewoong Cho ,  Jiwon Kang ,  Kitae Kim

IPC: H04W72/08 ,  H04B7/26 ,  H04B7/04 ,  H04W72/04 ,  H04J11/00 ,  H04W88/02 ,  H04W88/08

Abstract: Disclosed is a communication method of a terminal utilizing outdated channel information in a two-cell, three-user network environment, the method comprising: transmitting nine different first linear combinations to a first base station in each time slot during a first time interval; receiving a first feedback signal from a second base station which has received the first linear combination as an interference signal; transmitting four different second linear combinations to the first base station during a first sub-time interval of a third time interval; receiving a second feedback signal from the second base station which has received the second linear combinations as an interference signal; and transmitting reconfiguration signals consisting of eight data symbols to the first base station during a third sub-time interval of the third time interval. Further, a communication method of a base station corresponding to such a terminal is also disclosed.

公开(公告)号：US20180219600A1

公开(公告)日：2018-08-02

申请号：US15748408

申请日：2016-06-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04B7/0417

CPC classification number: H04B7/0626 ,  H04B7/0417 ,  H04B7/0617 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0695

Abstract: The present invention relates to a method for receiving a signal in a wireless communication system, and an apparatus therefore. Particularly, the present invention relates to a method and an apparatus therefore, the method comprising the steps: receiving information associated with a preferred beam from another user equipment (UE), wherein the information associated with the preferred beam includes information indicating at least one preferred beam for said another UE; determining at least one shared beam on the basis of the received information associated with the preferred beam; transmitting, to a base station, information associated with the at least one determined shared beam; determining a beam dedicated for a particular UE on the basis of the at least one determined shared beam; transmitting, to the base station, information associated with the determined dedicated beam; and simultaneously receiving, from the base station, UE-common data on the basis of the information associated with the at least one shared beam, and UE-specific data on the basis of the information associated with the dedicated beam.

公开(公告)号：US10020867B2

公开(公告)日：2018-07-10

申请号：US15031239

申请日：2014-04-30

Applicant: LG ELECTRONICS INC.

Inventor： Kitae Kim ,  Jinmin Kim ,  Kwangseok Noh ,  Kukheon Choi ,  Jaehoon Chung

IPC: H04B7/155 ,  H04W72/08 ,  H04L5/14 ,  H04W4/06 ,  H04B7/026 ,  H04B7/0413

CPC classification number: H04B7/155 ,  H04B7/026 ,  H04B7/0413 ,  H04L5/14 ,  H04W4/06 ,  H04W72/082

Abstract: In this disclosure, methods and apparatus for managing interference are disclosed. In one example, the first station receives the first signal from the base station. The first station acquires information on a specific processing scheme of a second station for processing the first signal to be transmitted to a third station at the second station. The first station receives a second signal from the base station while the second station transmits the first signal to the third station. Here, since the first station has knowledge on the first signal and the information on the specific processing scheme, it can manage interference caused by the first signal from the second station.

公开(公告)号：US09967072B2

公开(公告)日：2018-05-08

申请号：US15115230

申请日：2014-06-26

Applicant: LG ELECTRONICS INC.

Inventor： Jiwon Kang ,  Kilbom Lee ,  Kitae Kim

IPC: H04W4/00 ,  H04L5/00 ,  H04B7/04 ,  H04B7/06 ,  H04W72/12

CPC classification number: H04L5/0048 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/065 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/006 ,  H04L5/0091 ,  H04W72/1226

Abstract: A method for transmitting a signal to a receiver by a transmitter in a wireless communication system is disclosed. The method includes transmitting information about a first non-precoded pilot signal and information about a second non-precoded pilot signal to the receiver, transmitting the first non-precoded pilot signal the second non-precoded pilot signal to the receiver, and transmitting one or more transmission streams to the receiver through first logical antenna ports and second logical antenna ports, wherein the number of the first logical antenna ports is less than or equal to the number of the second logical antenna ports, the first non-precoded pilot signal is a pilot signal for measuring channel state information at the receiver, and the second non-precoded pilot signal is a pilot signal for determining the number of the first logical antenna ports.

公开(公告)号：US09866307B2

公开(公告)日：2018-01-09

申请号：US14903251

申请日：2014-07-14

Applicant: LG ELECTRONICS INC.

Inventor： Kitae Kim ,  Jinmin Kim ,  Kwangseok Noh ,  Kukheon Choi ,  Jaehoon Chung

IPC: H04B7/08 ,  H04B7/04 ,  H04L5/00 ,  H04L5/14 ,  H04B7/0413

CPC classification number: H04B7/0854 ,  H04B7/0413 ,  H04L5/0023 ,  H04L5/14

Abstract: A method and device for transmitting data symbols using an antenna correlation in a wireless access system supporting multiple input/multiple output (MIMO) operations. The method includes: receiving, from a receiving end, grouping information of a plurality of antennas for supporting the MIMO operations, where the grouping information includes information on the two selected antenna subgroups; selecting two antennas of which a correlation is highest from the two selected antenna subgroups respectively for transmitting the data symbols; and transmitting different data symbols through each of the two selected antennas of the two selected antenna subgroups on an identical time frequency resource. Here, antennas with a highest correlation are grouped into two or more antenna subgroups. Also, two antenna subgroups, of which a correlation is lowest from the two or more antenna subgroups, are selected among the two or more antenna subgroups by the receiving end.

公开(公告)号：US09866298B2

公开(公告)日：2018-01-09

申请号：US15308214

申请日：2015-05-13

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/04 ,  H04B7/08 ,  H04B7/24 ,  H04B7/06 ,  H04B17/24

CPC classification number: H04B7/0486 ,  H04B7/04 ,  H04B7/0632 ,  H04B7/08 ,  H04B17/24

Abstract: A parameter determination method and a MIMO receiver are disclosed, wherein the parameter determination method estimates a channel correlation with respect to a plurality of REs using information about channels of the plurality of REs included in a resource region allocated by a MIMO transmitter; determines a downlink signal rank taking account of the channel correlation; and transmits information about the determined rank to the MIMO transmitter.

公开(公告)号：US09838195B2

公开(公告)日：2017-12-05

申请号：US14895902

申请日：2014-05-28

Applicant: LG ELECTRONICS INC.

Inventor： Kitae Kim ,  Jinmin Kim ,  Kwangseok Noh ,  Kukheon Choi ,  Jaehoon Chung

IPC: H04L5/14 ,  H04W72/08 ,  H04W72/04 ,  H04W24/08 ,  H04B17/345

CPC classification number: H04L5/1461 ,  H04B17/345 ,  H04W24/08 ,  H04W72/0453 ,  H04W72/082

Abstract: A method of measuring a self-interference channel in user equipment in a full duplex radio (FDR) communication environment is disclosed. The method includes receiving, from a base station, resource allocation information including information about a time interval, the base station stopping transmission of a signal in the time interval for measurement of the self-interference channel in the user equipment, transmitting a first reference signal for measurement of the self-interference channel in the time interval specified by the resource allocation information, and receiving a second reference signal input to a receiver of the user equipment according to self-interference in the time interval, wherein the second reference signal is a signal corresponding to the first reference signal transmitted over a wireless channel.

公开(公告)号：US09825687B2

公开(公告)日：2017-11-21

申请号：US15033827

申请日：2014-05-02

Applicant: LG ELECTRONICS INC.

Inventor： Kitae Kim ,  Jaehoon Chung ,  Jiwon Kang ,  Kwangseok Noh ,  Kukheon Choi ,  Hyunsoo Ko ,  Jinmin Kim

IPC: H04B7/06 ,  H04B17/12

CPC classification number: H04B7/0671 ,  H04B7/0617 ,  H04B17/12

Abstract: In this disclosure, methods for pre-compensation of the phase shifting error, and apparatuses for the same are disclosed. In one example, a device performs precoding of a digital signal, while acquiring information on an error caused by a phase shifting of the precoding. Then, the device performs phase compensation on the digital signal based on the acquired information. Here, the phase compensation may compensate different amount of phase based on an amount of the phase shifting of the precoding. This phase compensated-digital signal is converted to an analog signal, and is transmitted to a receiver.

公开(公告)号：US09819407B2

公开(公告)日：2017-11-14

申请号：US15034020

申请日：2014-04-30

Applicant: LG ELECTRONICS INC.

Inventor： Kitae Kim ,  Jaehoon Chung ,  Jiwon Kang ,  Kwangseok Noh ,  Kukheon Choi ,  Hyunsoo Ko ,  Jinmin Kim

IPC: H04L1/02 ,  H04B7/06 ,  H04L25/02 ,  H04B7/04 ,  H04B17/11 ,  H04L27/26 ,  H04L25/49 ,  H04L25/03

CPC classification number: H04B7/0656 ,  H04B7/046 ,  H04B7/0617 ,  H04B7/0619 ,  H04B17/11 ,  H04L25/0224 ,  H04L25/03343 ,  H04L25/49 ,  H04L27/2634 ,  H04L27/2657

Abstract: In this disclosure, methods for pre-compensation of the phase shifting error, and apparatuses for the same are disclosed. In one example, a device performs precoding of a digital signal, while acquiring information on an error caused by a phase shifting of the precoding. Then, the device performs phase compensation on the digital signal based on the acquired information. This phase compensated-digital signal is converted to an analog signal, and is transmitted to a receiver.