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：US09843434B2

公开(公告)日：2017-12-12

申请号：US14419635

申请日：2013-07-31

Applicant: LG ELECTRONICS INC.

Inventor： Kitae Kim ,  Jaehoon Chung ,  Sunam Kim

IPC: H04L5/00 ,  H04L27/26

CPC classification number: H04L5/0069 ,  H04L5/0037 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/2607

Abstract: Disclosed herein is a method of transceiving a signal between a transmitter and a receiver in a wireless communication system. The method includes transceiving the signal in units of a subframe including a plurality of symbols. Each of the plurality of symbols includes a valid symbol and a cyclic prefix, and a length of the cyclic prefix is changed according to a distance between the transmitter and the receiver.

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：US09794917B2

公开(公告)日：2017-10-17

申请号：US14836585

申请日：2015-08-26

Applicant: LG ELECTRONICS INC.

Inventor： Seunghee Han ,  Jaehoon Chung ,  Hyunwoo Lee ,  Moonil Lee ,  Hyunsoo Ko

IPC: H04W72/02 ,  H04W72/04 ,  H04L1/18 ,  H04L1/00 ,  H04L1/16 ,  H04L5/00 ,  H04B7/0413

CPC classification number: H04W72/0413 ,  H04B7/0413 ,  H04L1/0073 ,  H04L1/1657 ,  H04L1/1861 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0094 ,  H04W72/042

Abstract: The present invention relates to a wireless communication system. In more detail, in relation to a method for a terminal to transmit ACK/NACK in a wireless communication system, an ACK/NACK transmission method includes: receiving at least one Physical Downlink Shared Channel (PDSCH); transmitting at least one ACK/NACK corresponding to the at least one PDSCH through a plurality of Physical Uplink Control Channel (PUCCH) formats; and, when the at least one ACK/NACK is transmitted using a first PUCCH format, transmitting at least one ACK/NACK in an antenna port transmission mode set for a second PUCCH format.

公开(公告)号：US09794817B2

公开(公告)日：2017-10-17

申请号：US14407897

申请日：2013-06-24

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsoo Ko ,  Kitae Kim ,  Jaehoon Chung

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

CPC classification number: H04W24/10 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0626 ,  H04L5/0053

Abstract: The present invention relates to a method and an apparatus for reporting channel status information (CSI). According to one embodiment of the present invention, the method comprises receiving a first CSI-reference signal (CSI-RS) based on CSI-RS configuration information with respect to a first domain antenna group of a two-dimensional antenna structure; reporting a first piece of CSI with respect to the first domain antenna group, which is generated using the first CSI-RS; receiving a second CSI-RS, based on CSI-RS configuration information with respect to a second domain antenna group of the two-dimensional antenna structure; and reporting a second piece of CSI with respect to the second domain antenna group, which is generated using the second CSI-RS, wherein the CSI-RS configuration information with respect to the second domain antenna group can be determined based on the first piece of CSI.

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：US09750043B2

公开(公告)日：2017-08-29

申请号：US14417461

申请日：2013-07-26

Applicant: LG Electronics Inc.

Inventor： Eunjong Lee ,  Heejeong Cho ,  Jaehoon Chung

IPC: H04W72/00 ,  H04W72/12 ,  H04W74/02 ,  H04W76/04 ,  H04W88/06

CPC classification number: H04W72/1215 ,  H04W74/02 ,  H04W76/27 ,  H04W88/06

Abstract: A method for supporting communication using two or more heterogeneous radio access technologies (RAT) can include the steps of: receiving a first message requesting that notification be provided as to whether to support simultaneous access to two or more RATs from a base station in a first communication network supporting a first RAT; and transmitting, to the base station in the first communication network, a second message including an indicator indicating whether to support simultaneous access to the two or more RATs in response to the first message.

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：US09735842B2

公开(公告)日：2017-08-15

申请号：US14441801

申请日：2013-12-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/01 ,  H04B7/08 ,  H04L27/26 ,  H04L25/02 ,  H04B7/06

CPC classification number: H04B7/01 ,  H04B7/0617 ,  H04L25/0222 ,  H04L27/2646 ,  H04L27/2657 ,  H04L27/2692

Abstract: The present invention provides methods for relieving effective Doppler broadening in performing pin-point beamforming and provides apparatuses for supporting the methods, wherein the methods and the apparatuses are used in a wireless access system that supports a super high frequency band. The method for relieving Doppler broadening in a wireless access system that supports a super high frequency band according to one embodiment of the present invention may comprise the steps of: receiving a downlink signal at a receiving end; estimating a Doppler spectrum for the downlink signal received at the receiving end; and calculating a carrier wave shift value based on the Doppler spectrum estimated at the receiving end.