公开(公告)号：US09883478B2

公开(公告)日：2018-01-30

申请号：US15541618

申请日：2015-01-09

Applicant: LG ELECTRONICS INC.

Inventor： Kwangseok Noh ,  Jaehoon Chung ,  Genebeck Hahn ,  Eunjong Lee ,  Jinmin Kim ,  Kukheon Choi ,  Sangrim Lee

IPC: H04W24/00 ,  H04W64/00 ,  G01S5/02 ,  H04L5/14

CPC classification number: H04W64/00 ,  G01S5/02 ,  G01S5/0252 ,  H04L5/14

Abstract: The present invention relates to a method for positioning multiple user equipments (UEs) by a base station in a wireless communication system supporting full-duplex communication and an apparatus therefor. More specifically, the present invention comprises: setting a unit distance on the basis of the magnitude of inter-device interference (IDI) with respect to a first UE; and establishing multiple boundaries around each of the multiple UEs and the base station according to relative distances on the basis of the unit distance and checking whether the boundaries overlap each other. Here, the relative distances indicate with respect to the multiple UEs, measured on the basis of the magnitude of inter-device interference (IDI).

公开(公告)号：US09882691B2

公开(公告)日：2018-01-30

申请号：US14767107

申请日：2013-10-10

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04B7/0417 ,  H04B7/06 ,  H04B7/024 ,  H04B7/10

CPC classification number: H04L5/0048 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/0691 ,  H04B7/10 ,  H04L5/0023

Abstract: A method for transmitting a reference signal for supporting a plurality of antennas to a User Equipment (UE) at a Base Station (BS) in a wireless communication system is disclosed. The method includes grouping the plurality of antennas into antenna groups comprising a predetermined number of antenna ports, transmitting resource information about a reference signal for at least one antenna group of the antenna groups, and transmitting the reference signal for the at least one antenna group to the UE based on the resource information.

公开(公告)号：US09860031B2

公开(公告)日：2018-01-02

申请号：US14776123

申请日：2014-01-28

Applicant: LG ELECTRONICS INC.

Inventor： Kitae Kim ,  Jaehoon Chung ,  Jinmin Kim

IPC: H04L5/00 ,  H04J11/00 ,  H04J13/00 ,  H04B7/06 ,  H04W72/04

CPC classification number: H04L5/0005 ,  H04B7/0617 ,  H04J11/00 ,  H04J13/00 ,  H04L5/0048 ,  H04L5/0053 ,  H04W72/0413

Abstract: A method for data transmission on control channels from a Base Station (BS) to a User Equipment (UE) in a wireless communication system is disclosed. The method includes multiplexing a common control channel and a UE-specific control channel for the UE using at least one of time division multiplexing and frequency division multiplexing; and performing data transmission on the multiplexed common control channel and the UE-specific control channel to the UE. The UE-specific control channel is multiplexed with one or more UE-specific control channels for other UEs using at least one of time division multiplexing, frequency division multiplexing, spatial multiplexing, and code division multiplexing.

公开(公告)号：US09848427B2

公开(公告)日：2017-12-19

申请号：US14889754

申请日：2014-05-27

Applicant: LG ELECTRONICS INC.

Inventor： Kitae Kim ,  Jaehoon Chung ,  Jinmin Kim

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

CPC classification number: H04W72/0453 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0048 ,  H04L5/0073 ,  H04L5/14 ,  H04L5/1461 ,  H04W72/04 ,  H04W72/082

Abstract: A method of allocating a resource for user equipments in a base station in a full duplex radio (FDR) communication environment is disclosed. The method includes determining an FDR frequency band for performing FDR communication with a plurality of user equipments, selecting a first user equipment and a second user equipment among the plurality of user equipments, a correlation between the first and second user equipments being less than a threshold value, and allocating a first section as a downlink frequency resource for the first user equipment and an uplink frequency resource for the second user equipment, and allocating a second section as an uplink frequency resource for the first user equipment and a downlink frequency resource for the second user equipment, the first section and the second section being parts of the FDR frequency band.

公开(公告)号：US09848397B2

公开(公告)日：2017-12-19

申请号：US14440042

申请日：2013-11-04

Applicant: LG ELECTRONICS INC.

Inventor： Kitae Kim ,  Jinmin Kim ,  Hyunsoo Ko ,  Jaehoon Chung

IPC: H04W56/00 ,  H04L5/00 ,  H04W72/04 ,  H04L27/26 ,  H04W88/02

CPC classification number: H04W56/0005 ,  H04L5/0053 ,  H04L27/26 ,  H04L27/2607 ,  H04L27/2666 ,  H04W56/0015 ,  H04W72/0446 ,  H04W88/02

Abstract: The present invention defines multiple synchronizing signal resource candidates from/in which a synchronizing signal can be transmitted or detected. The base station according to the present invention transmits a synchronizing signal from a synchronizing signal resource, which corresponds to at least the cell identifier of a cell which is associated with the synchronizing signal, the time synchronization of the cell, the length of a cyclic prefix which is applied to the cell, or the type of the base station, among the multiple synchronizing signal resource candidates. The user equipment according to the present invention can obtain information on at least the cell identifier, the time synchronization with the cell, the length of the cyclic prefix, or the type of the base station, on the basis of the synchronizing signal resource in which the synchronizing signal has been detected.

公开(公告)号：US09847866B2

公开(公告)日：2017-12-19

申请号：US14893491

申请日：2014-06-11

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/14 ,  H04W72/04 ,  H04B7/26 ,  H04L5/00

CPC classification number: H04L5/14 ,  H04B7/26 ,  H04L5/0044 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0091 ,  H04W72/042

Abstract: The present invention relates a wireless access system which supports a full duplex radio (FDR) transmission environment. A method for receiving a signal from a base station by a terminal in the wireless access system which supports FDR transmission according to an embodiment of the present invention comprises the steps of: receiving, from the base station, reference signal mode information indicating resources by which a reference signal is transmitted, from among reference signal available resources by which the reference signal can be transmitted; receiving, from the base station, additional resource mode information indicating additional data resources by which a terminal can simultaneously transmit data, from among the resources by which the reference signal is transmitted; and transmitting the data using the additional resource mode information simultaneously while receiving the reference signal using the reference signal mode information.

公开(公告)号：US09832053B2

公开(公告)日：2017-11-28

申请号：US14728381

申请日：2015-06-02

Applicant: LG ELECTRONICS INC.

Inventor： Jinmin Kim ,  Jaehoon Chung ,  Genebeck Hahn ,  Eunjong Lee ,  Kukheon Choi ,  Kwangseok Noh

IPC: H04B7/005 ,  H04L27/01 ,  H04B1/525 ,  H04B3/23

CPC classification number: H04L27/01 ,  H04B1/525 ,  H04B3/23

Abstract: The apparatus for reconstructing a desired signal using a full duplex radio (FDR) scheme includes: a digital self-interference cancellation unit configured to output a first digital signal; a demodulator configured to demodulate the first digital signal; a modulator configured to modulate the demodulated first digital signal; an attenuator configured to attenuate the modulated first digital signal by applying an attenuation coefficient to the modulated first digital signal; and an operation unit configured to receive the attenuated first digital signal and the first digital signal, and transmit a residual signal to the digital self-interference cancellation unit, wherein the residual signal is obtained by subtracting the attenuated first digital signal from the first digital signal.

公开(公告)号：US09781747B2

公开(公告)日：2017-10-03

申请号：US14763473

申请日：2013-08-20

Applicant: LG ELECTRONICS INC.

Inventor： Kitae Kim ,  Jinmin Kim ,  Hyunsoo Ko ,  Jaehoon Chung

IPC: H04W74/08 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04W74/0833 ,  H04L5/0048 ,  H04L27/2613

Abstract: A method for transmitting a random access preamble at a user equipment in a wireless communication system is disclosed. The method includes determining a random access sequence transmission period using a random access sequence, configuring a random access preamble by inserting a cyclic prefix at a front of the random access sequence transmission period and a guard time at an end of the random access sequence transmission period, and transmitting the random access preamble on a random access channel to a base station. The random access preamble is configured by repeating the random access sequence a predetermined number of times, if the length of the random access sequence is smaller than the random access sequence transmission period.

公开(公告)号：US09763248B2

公开(公告)日：2017-09-12

申请号：US14437465

申请日：2013-10-22

Applicant: LG ELECTRONICS INC.

Inventor： Kitae Kim ,  Jinmin Kim ,  Hyunsoo Ko ,  Jaehoon Chung

IPC: H04W72/04 ,  H04B7/26 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04W72/0453 ,  H04B7/2656 ,  H04L5/003 ,  H04L27/2602

Abstract: Flexible employment of frame configuration in light of the Doppler frequency change is proposed. According to the present invention, frame configuration for a predetermined frequency band may be changed. Changing frame configuration in the present invention may include changing subcarrier spacing.

公开(公告)号：US20170238339A1

公开(公告)日：2017-08-17

申请号：US15401989

申请日：2017-01-09

Applicant: LG ELECTRONICS INC.

Inventor： Hyunwoo Lee ,  Jinmin Kim ,  Seunghee Han

IPC: H04W74/00 ,  H04W76/02 ,  H04L5/14 ,  H04L5/00

CPC classification number: H04W74/002 ,  H04L5/001 ,  H04L5/0055 ,  H04L5/1415 ,  H04W56/0045 ,  H04W72/0413 ,  H04W76/19

Abstract: A method and apparatus for transmitting control information in a wireless communication system supporting carrier aggregation (CA) is disclosed. A method for transmitting control information to a base station (BS) by a user equipment (UE) in a wireless communication system includes receiving at least one of a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) from the base station through at least one serving cell configured in the user equipment, and transmitting control information regarding PDCCH reception or PDSCH reception indicated by the PDCCH to the base station. The control information is transmitted through a physical uplink control channel (PUCCH) of a primary cell, using control information feedback timing of at least one of the primary cell and a first cell of the at least one serving cell, and the at least one serving cell uses different uplink and downlink (UL-DL) configurations.