公开(公告)号：US20180294942A1

公开(公告)日：2018-10-11

申请号：US15577950

申请日：2015-11-09

Applicant: LG ELECTRONICS INC.

Inventor： Ilmu Byun ,  Heejeong Cho ,  Genebeck Hahn ,  Eunjong Lee

IPC: H04L5/14 ,  H04W72/04

CPC classification number: H04L5/14 ,  H04L5/0055 ,  H04L5/0057 ,  H04L5/1469 ,  H04W72/042 ,  H04W72/0446

Abstract: Provided are a method and device for performing communication using a plurality of subframes in a time division duplex (TDD) based wireless communication system. Specifically, groups are set by grouping a first configuration and a second configuration which arrange at least one downlink symbol and at least one uplink symbol in a subframe unit. The first configuration and the second configuration are configured in a manner that the downlink symbol and the uplink symbol do not overlap with each other in a particular symbol interval. Information indicative of a group is transmitted to a terminal for at least one subframe from among the plurality of subframes. Information indicative of a configuration to be used in the terminal of the first configuration and the second configuration in a group with respect to at least one subframe is transmitted to the terminal.

公开(公告)号：US10075904B2

公开(公告)日：2018-09-11

申请号：US15036790

申请日：2014-07-09

Applicant: LG ELECTRONICS INC.

Inventor： Eunjong Lee ,  Jaehoon Chung ,  Hyeyoung Choi ,  Heejeong Cho ,  Genebeck Hahn

IPC: H04W48/16 ,  H04W48/20 ,  H04W74/08 ,  H04W48/18 ,  H04W48/12 ,  H04W84/12

CPC classification number: H04W48/16 ,  H04W48/12 ,  H04W48/18 ,  H04W48/20 ,  H04W74/0833 ,  H04W84/12

Abstract: A user equipment in a communication environment in which a plural communication systems interwork comprises: a processor for searching a base station of a first communication system, the base station having a signal intensity higher than a threshold; and a receiver for receiving information of a base station list of a second communication system adjacent to the terminal through a first communication system link from the searched base station of the first communication system, wherein the processor turns on a second communication system mode in the case of failing in random access channel (RACH) transmissions a predetermined number of times to the searched base station of the first communication system, wherein the receiver receives a beacon signal including an indicator which indicates support of an uplink transmission of the first communication system from base stations included in the information of the base station list of the second communication system; the processor recognizes that an uplink transmission is disabled or only a downlink transmission is enabled through the first communication system link based on the beacon signal; and the information of the base station list of the second communication system may include an indicator which indicates whether the base station of the second communication system supports a downlink (DL) or uplink (UL) transmission through the first communication system link.

公开(公告)号：US20180227861A1

公开(公告)日：2018-08-09

申请号：US15748811

申请日：2015-12-15

Applicant: LG ELECTRONICS INC.

Inventor： Ilmu Byun ,  Joonkui Ahn ,  Suckchel Yang ,  Heejeong Cho ,  Genebeck Hahn ,  Eunjong Lee

IPC: H04W52/34 ,  H04W72/04

CPC classification number: H04W52/346 ,  H04W52/367 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0473

Abstract: A method and a device for controlling power in a TDD-based wireless communication system are provided. Particularly, a first resource block group for a first terminal and a second resource block group for a second terminal are configured. The first resource block group is configured in a partial frequency band of the entire frequency band. The maximum transmission power of the first terminal is controlled for the first resource block group according to the ratio between the number of subcarriers in the first resource block group and the number of subcarriers in the second resource block group. An uplink signal of the first terminal and an uplink signal of the second terminal are received through the first resource block group.

公开(公告)号：US10020975B2

公开(公告)日：2018-07-10

申请号：US15500733

申请日：2015-08-18

Applicant: LG Electronics, Inc.

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

IPC: H03K9/00 ,  H04L27/38 ,  H04B7/0413 ,  H04L27/06

CPC classification number: H04L27/38 ,  H04B7/0413 ,  H04L5/0026 ,  H04L5/0048 ,  H04L27/0008 ,  H04L27/06 ,  H04L27/3433 ,  H04L27/3845

Abstract: A method by which a terminal demodulates a signal in a wireless access system according to one embodiment of the present invention comprises the steps of: receiving a modulation signal having a modulation order of 2m (m is a natural number); determining a first demodulation constellation arrangement corresponding to a kth (k is an even number among natural numbers of m or less) bit among m numbers of bits; determining a second demodulation constellation arrangement corresponding to an nth (n is an odd number among natural numbers of m or less) bit among the m numbers of bits; and demodulating the received modulation signal by using the first and second demodulation constellation arrangements, wherein the first constellation arrangement can have a pattern in which a square matrix having a size of 2(m/2+1)−(k/2) is repeated.

公开(公告)号：US09924545B2

公开(公告)日：2018-03-20

申请号：US14904383

申请日：2014-04-09

Applicant: LG ELECTRONICS INC.

Inventor： Genebeck Hahn ,  Jaehoon Chung ,  Hyeyoung Choi ,  Eunjong Lee ,  Heejeong Cho

IPC: H04W24/02 ,  H04W74/08 ,  H04W88/08

CPC classification number: H04W74/0833 ,  H04W24/02 ,  H04W88/085

Abstract: Disclosed are: a terminal for selecting RRUs of which a connection state with the terminal is a critical value or more from among a plurality of RRUs on the basis of down signals received from the RRUs, transmitting an RRU list including information on the selected RRUs and a random access preamble to an RRU having the best connection state with the terminal among the selected RRUs, receiving an access information response message indicating a preferred RRU with which a random access is to be performed by the terminal from any one RRU among the selected RRUs and performing a random access process with the preferred RRU; and a method for performing random access by the terminal.

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：US09867034B2

公开(公告)日：2018-01-09

申请号：US14912039

申请日：2014-09-02

Applicant: LG ELECTRONICS INC.

Inventor： Hyeyoung Choi ,  Heejeong Cho ,  Jaehoon Chung ,  Genebeck Hahn ,  Eunjong Lee

IPC: H04W4/00 ,  H04W8/22 ,  H04B7/26 ,  H04B17/00 ,  H04L25/00 ,  H04L12/26 ,  H04W16/32 ,  H04W24/02 ,  H04W24/10 ,  H04W88/08 ,  H04W24/08 ,  H04L12/24

CPC classification number: H04W8/245 ,  H04B7/26 ,  H04B17/00 ,  H04B17/382 ,  H04L25/00 ,  H04L43/06 ,  H04W16/32 ,  H04W24/02 ,  H04W24/08 ,  H04W24/10 ,  H04W88/085

Abstract: Disclosed are a BBU and a method of obtaining RRU information, which comprises, in a heterogeneous cell environment in which a macro cell and small cell coexist, a BBU receiving, from a terminal and via a serving RRU of the terminal connected to the BBU, a measurement reporting message that includes information on an RRU transmitting, to the terminal, a reference signal at an intensity equal to or stronger than a threshold value, and determining the RRU as a neighboring RRU of the serving RRU by using information included in the measurement reporting message.

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：US09743356B2

公开(公告)日：2017-08-22

申请号：US14758896

申请日：2014-01-22

Applicant: LG ELECTRONICS INC.

Inventor： Eunjong Lee ,  Jaehoon Chung ,  Hyeyoung Choi ,  Heejeong Cho ,  Genebeck Hahn

IPC: H04L1/00 ,  H04W52/02 ,  H04W76/04 ,  H04L29/06 ,  H04W84/12 ,  H04W24/02 ,  H04W88/06

CPC classification number: H04W52/0235 ,  H04L69/28 ,  H04W24/02 ,  H04W52/0206 ,  H04W52/0229 ,  H04W76/27 ,  H04W84/12 ,  H04W88/06 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/166 ,  Y02D70/21

Abstract: A method is provided for supporting state mode transition by an entity of a cellular network in case that a plurality of networks interwork. When a value of interference caused by a neighbor entity of a wireless local area network (WLAN) is equal to or larger than a predefined threshold value, a first message instructing another entity of the WLAN to perform a mode transition from an active mode to an idle mode is transmitted to another entity of the WLAN. In response, a second message including information indicating whether status of the mode transition of the another entity of the WLAN is successful is received from the another entity of the WLAN. When the information indicates that the status of the mode transition of the another entity of the WLAN is successful, status information of the another entity of the WLAN is updated based on the second message.

公开(公告)号：US09706544B2

公开(公告)日：2017-07-11

申请号：US14758387

申请日：2014-01-07

Applicant: LG ELECTRONICS INC.

Inventor： Eunjong Lee ,  Jaehoon Chung ,  Hyeyoung Choi ,  Heejeong Cho ,  Genebeck Hahn

IPC: H04W76/02 ,  H04W72/04 ,  H04W60/00 ,  H04W48/10 ,  H04W84/12 ,  H04W56/00 ,  H04W84/04 ,  H04W48/12 ,  H04W88/10 ,  H04W88/00

CPC classification number: H04W72/0426 ,  H04W48/10 ,  H04W48/12 ,  H04W56/002 ,  H04W60/005 ,  H04W76/16 ,  H04W84/042 ,  H04W84/12 ,  H04W88/005 ,  H04W88/10

Abstract: This method whereby a mobility management entity (MME) in a first communication system updates base station information in a converged network supporting multiple communication systems comprises the steps of: receiving a first message including changed information from a base station in a second communication system if information from and related to the base station in the second communication system has changed or if information related to a base station in the first communication system has changed; and updating with the changed information on the basis of the first message.