公开(公告)号：US20180139026A1

公开(公告)日：2018-05-17

申请号：US15102689

申请日：2014-12-23

Applicant: LG Electronics Inc.

Inventor： Joonkui Ahn ,  Dongyoun Seo ,  Suckchel Yang ,  Daesung Hwang

IPC: H04L5/00 ,  H04L1/18 ,  H04L1/16 ,  H04W72/04 ,  H04L5/14

CPC classification number: H04L5/0055 ,  H04L1/1664 ,  H04L1/1671 ,  H04L1/1692 ,  H04L1/1864 ,  H04L5/1469 ,  H04W72/0446

Abstract: Provided are a method and an apparatus for transmitting acknowledgement/non-acknowledgement (ACK/NACK) of a terminal in a carrier wave aggregation system. The method comprises: receiving a UL grant by a subframe n−k1 of a first serving cell, wherein the UL grant comprises uplink allocation and piggyback information, wherein the piggyback information indicates the number of first physical downlink shared channels (PDSCHs) scheduled before the subframe n−k1; attempting a detection of a second PDSCH by a subframe n−k2 of a second serving cell; and transmitting an uplink transmission block and ACK/NACK information through a physical uplink shared channel (PUSCH) on the basis of the uplink allocation by subframe n, wherein n, k1 and k2 are constants, k1>k2, and the ACK/NACK information may comprise a first ACK/NACK according to the piggyback information, and a second ACK/NACK corresponding to the detected second PDSCH.

公开(公告)号：US09918286B2

公开(公告)日：2018-03-13

申请号：US15661869

申请日：2017-07-27

Applicant: LG ELECTRONICS INC.

Inventor： Daesung Hwang ,  Yunjung Yi ,  Joonkui Ahn

IPC: H04W52/32 ,  H04W52/36 ,  H04W52/02

CPC classification number: H04W52/325 ,  H04W52/0206 ,  H04W52/34 ,  H04W52/365 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/23

Abstract: One disclosure of the present specification provides a method for receiving downlink data in a wireless communication system supporting 256 QAM. The method for receiving downlink data in a wireless communication system supporting 256 QAM comprises the steps of: receiving configuration information about power back-off; receiving downlink data transmitted on the basis of the configuration information about power back-off; and demodulating the received downlink data on the basis of the configuration information about power back-off, wherein the configuration information about power back-off may comprise information related to at least one of the following: whether to apply power back-off, the reduced amount of power of downlink data by power back-off, a frame index to which power back-off is applied, a subframe index and a resource to which power back-off is applied.

公开(公告)号：US20170374675A1

公开(公告)日：2017-12-28

申请号：US15536788

申请日：2015-12-15

Applicant: LG Electronics Inc.

Inventor： Daesung Hwang ,  Yunjung Yi

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04W72/1268 ,  H04L5/0007 ,  H04L5/0012 ,  H04L5/0051 ,  H04L5/0055 ,  H04L5/0094 ,  H04W72/04 ,  H04W72/0413 ,  H04W72/0446

Abstract: One embodiment of the present specification provides a method by which a wireless device, to which coverage enhancement (CE) is applied, transmits an uplink channel. The method can comprise a step for receiving, by the wireless device, sounding reference signal (SRS) configuration information for other wireless devices within a cell. The SRS configuration information can comprise information on SRS transmittable subframes. The method can comprise a step for transmitting, by the wireless device, the uplink channel on symbols except for a final symbol on subframes according to a reduced format, when the wireless device transmits the uplink channel on the subframes directed by the subframe information within the SRS configuration information for other wireless devices.

公开(公告)号：US09838162B2

公开(公告)日：2017-12-05

申请号：US14377796

申请日：2013-02-08

Applicant: LG ELECTRONICS INC.

Inventor： Dongyoun Seo ,  Joonkui Ahn ,  Suckchel Yang ,  Daesung Hwang ,  Bonghoe Kim

IPC: H04L1/18 ,  H04L1/22

CPC classification number: H04L1/1835 ,  H04L1/1812 ,  H04L1/1874 ,  H04L1/22 ,  H04L2001/0093

Abstract: The present invention relates to a method for managing a soft buffer for the hybrid automatic repeat request (HARQ) of a terminal to which a plurality of cells are set in a wireless communication system, and to an apparatus using the method. Through the method, information is received about the maximum number of cells capable of being simultaneously scheduled from among a plurality of cells, and the size of the soft buffer is determined for storing transmission blocks or code blocks of each cell on the basis of the information.

公开(公告)号：US09794845B2

公开(公告)日：2017-10-17

申请号：US14647427

申请日：2013-11-26

Applicant: LG ELECTRONICS INC.

Inventor： Daesung Hwang ,  Dongyoun Seo ,  Yunjung Yi ,  Bonghoe Kim ,  Suckchel Yang

IPC: H04W36/20 ,  H04L5/00 ,  H04J11/00 ,  H04W72/04 ,  H04B7/26 ,  H04L1/18

CPC classification number: H04W36/20 ,  H04B7/2656 ,  H04J11/005 ,  H04L1/1812 ,  H04L1/1896 ,  H04L5/00 ,  H04W72/0406 ,  H04W72/044

Abstract: According to one disclosure of the present specification, a method for applying system information changed in a terminal is presented. The method for applying the changed system information includes the steps of: receiving an indicator providing notice of a change of a system information set from a cell; receiving information on the time when the change of system information is applied; when the indicator is received in subframe n, determining that the changed system information is applied after k periods based on the information from the n subframe.

公开(公告)号：US20170257191A1

公开(公告)日：2017-09-07

申请号：US15598963

申请日：2017-05-18

Applicant: LG Electronics Inc.

Inventor： Dongyoun Seo ,  Joonkui Ahn ,  Suckchel Yang ,  Yunjung Yi ,  Daesung Hwang

IPC: H04J3/02 ,  H04W16/32 ,  H04W74/00 ,  H04W48/12 ,  H04L29/06

CPC classification number: H04L5/0055 ,  H04B7/15557 ,  H04L1/1812 ,  H04L1/1822 ,  H04L1/1854 ,  H04L5/14 ,  H04W16/32 ,  H04W48/12 ,  H04W72/0413 ,  H04W74/002 ,  H04W74/004 ,  H04W74/006 ,  H04W76/19 ,  H04W84/025

Abstract: Provided are a method and an apparatus for transmitting downlink control information in a wireless communication system configured with a plurality of serving cells. The method generates downlink control information scheduling frequency division duplex (FDD) cells by means of FDD frames (DCI_FDD) and downlink control information scheduling time division duplex (TDD) cells by means of TDD frames (DCI_TDD), and transmits the DCI_FDD and the DCI_TDD, wherein parts of the fields of DCI_FDD and DCI_TDD are generated to have equal bit sizes, and if the FDD or TDD cell is used exclusively, then said parts of the fields in the FDD and TDD cells have mutually different bit sizes.

公开(公告)号：US09749963B2

公开(公告)日：2017-08-29

申请号：US15111677

申请日：2015-01-21

Applicant: LG ELECTRONICS INC.

Inventor： Daesung Hwang ,  Yunjung Yi ,  Joonkui Ahn ,  Suckchel Yang

IPC: H04W52/14 ,  H04W52/28 ,  H04W76/02

CPC classification number: H04W52/146 ,  H04W52/288 ,  H04W52/34 ,  H04W76/15

Abstract: A disclosure of the present specification provides a power control method. The method may comprise a step of receiving an upper layer signal by a user equipment (UE) in which dual connectivity between a first cell and a second cell is configured. Here, the upper layer signal may comprise configuration information to be used for the dual connectivity. The configuration information may comprise one of a first configuration and a second configuration. The user equipment (UE) in which the dual connectivity is configured can be connected to a first cell group including the first cell and a second cell group including the second cell, respectively. Here, each cell group may belong to an individual base station (eNodeB). The method may comprise a step of performing power control with regard to an uplink transmission to one or more of the first cell and the second cell, on the basis of one of the first configuration and the second configuration.

公开(公告)号：US09749093B2

公开(公告)日：2017-08-29

申请号：US14649490

申请日：2013-12-18

Applicant: LG ELECTRONICS INC.

Inventor： Dongyoun Seo ,  Joonkui Ahn ,  Suckchel Yang ,  Yunjung Yi ,  Daesung Hwang

IPC: H04L1/00 ,  H04L1/18 ,  H04W74/00 ,  H04W16/32 ,  H04W48/12 ,  H04B7/155 ,  H04L5/00 ,  H04W84/02

CPC classification number: H04L5/0055 ,  H04B7/15557 ,  H04L1/1812 ,  H04L1/1822 ,  H04L1/1854 ,  H04L5/14 ,  H04W16/32 ,  H04W48/12 ,  H04W72/0413 ,  H04W74/002 ,  H04W74/004 ,  H04W74/006 ,  H04W76/19 ,  H04W84/025

Abstract: Provided are a method for determining the number of hybrid automatic repeat request (HARQ) processes in a carrier aggregated system configured with a plurality of serving cells, and an apparatus using such a method. The method receives data from a downlink subframe of a second serving cell, and transmits an ACK/NACK signal for the data from an uplink subframe of a first serving cell, wherein the first serving cell uses a first-type frame, the second serving cell uses a second-type frame, and the number of HARQ processes in the second serving cell are determined with respect to each subframe comprised in the second-type frame and on the basis of the number of downlink subframes comprised in each section comprising a set number of subframes.

公开(公告)号：US09729297B2

公开(公告)日：2017-08-08

申请号：US14759581

申请日：2014-01-08

Applicant: LG ELECTRONICS INC.

Inventor： Dongyoun Seo ,  Joonkui Ahn ,  Daesung Hwang

IPC: H04L5/00 ,  H04W72/12 ,  H04L1/18 ,  H04L5/14

CPC classification number: H04L5/0055 ,  H04L1/1854 ,  H04L1/1864 ,  H04L1/1887 ,  H04L5/001 ,  H04L5/14 ,  H04W72/1289

Abstract: Provided are an apparatus and a method for executing an uplink hybrid automatic repeat request (HARQ) in a carrier aggregation system. The method transmits data to a base station from an uplink subframe of a second cell, and receives, from the base station, an acknowledgement/not-acknowledgement (ACK/NACK) or scheduling information for the data from a downlink subframe of a first cell, wherein if the timing relationship between the uplink subframe of the second cell and the downlink subframe of the first cell does not match the timing relationship for when the first cell is being used exclusively, then the scheduling information is received from the downlink subframe of the first cell.

公开(公告)号：US09713076B2

公开(公告)日：2017-07-18

申请号：US14782453

申请日：2014-04-14

Applicant: LG ELECTRONICS INC.

Inventor： Daesung Hwang ,  Yunjung Yi ,  Joonkui Ahn ,  Suckchel Yang

IPC: H04W4/00 ,  H04W48/16 ,  H04L5/00

CPC classification number: H04W48/16 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/0094 ,  H04W84/045

Abstract: According to one embodiment of the present description, a method by which a terminal receives a search signal from a small-sized cell is provided. The method can comprise the steps of: receiving, from a serving cell, configuration set information of search signals of clustered neighboring small-sized cells for each cluster; determining configuration information of a search signal of each of the neighboring small-sized cells belonging to a corresponding cluster on the basis of the set information; and detecting a search signal from a corresponding small-sized cell on the basis of the determined configuration information.