公开(公告)号：US10231261B2

公开(公告)日：2019-03-12

申请号：US15632757

申请日：2017-06-26

Applicant: LG ELECTRONICS INC.

Inventor： Bonghoe Kim ,  Dongyoun Seo ,  Yunjung Yi ,  Joonkui Ahn

IPC: H04W72/12 ,  H04L5/00 ,  H04L27/36 ,  H04L1/00

Abstract: A method is provided for transmitting downlink data in a wireless access system. An evolved Node B (eNB) transmits a higher layer signal including an indication that 256 quadrature amplitude modulation (256QAM) is to be enabled. The eNB transmits, via a physical downlink control channel (PDCCH), downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH). The eNB transmits, via the PDSCH, downlink data based on the DCI. The eNB has a first MCS index table supporting up to 64 quadrature amplitude modulation (64QAM) and a second MCS index table supporting up to 256QAM. The downlink data is encoded based on the first MCS index table even though the second MCS index table has been enabled, when a format of the DCI is a DCI format 1A and the DCI format 1A has been scrambled with a semi persistent scheduling radio network temporary identifier (SPS-RNTI).

公开(公告)号：US10230562B2

公开(公告)日：2019-03-12

申请号：US15310969

申请日：2015-05-22

Applicant: LG Electronics Inc.

Inventor： Bonghoe Kim ,  Yunjung Yi ,  Daesung Hwang

IPC: H04L27/34 ,  H04W28/18 ,  H04W48/20 ,  H04W72/04 ,  H04L27/00

Abstract: The present invention relates to a wireless access system, and relates to methods for supporting a 256 quadrature amplitude modulation (QAM) modulation mode and devices for supporting the same. In one embodiment of the present invention, the method for supporting a 256QAM in a wireless access system can comprise the steps of: performing, by a terminal, a serving cell adding step of adding a serving cell; receiving, by the terminal, an upper layer signal including a 256QAM indicator for indicating whether a 256QAM is supported in the serving cell; and transmitting and receiving, by the terminal, data by using a first table or a second table according to the 256QAM indicator. At this time, the first table is configured to support a legacy modulation mode, and the second table can be configured to support 256QAM.

公开(公告)号：US10218527B2

公开(公告)日：2019-02-26

申请号：US14889690

申请日：2014-05-09

Applicant: LG ELECTRONICS INC.

Inventor： Dongyoun Seo ,  Yunjung Yi ,  Bonghoe Kim ,  Joonkui Ahn

IPC: H04L12/18 ,  H04J11/00 ,  H04B7/26 ,  H04L27/26 ,  H04W4/06 ,  H04W72/00

Abstract: Provided are a method for setting a sub-frame for supporting a multimedia broadcast multicast service (MBMS) in a wireless communications system, and an apparatus using the same. The method includes receiving multicast broadcast single frequency network (MBSFN) information instructing a sub-frame which is set as an MBSFN sub-frame in a frame, and receiving a signal using an extended cyclic prefix (CP) in the sub-frame instructed by the MBSFN information, wherein the sub-frame which is set as the MBSFN sub-frame indicates only the sub-frame participating in the MBMS.

公开(公告)号：US10205577B2

公开(公告)日：2019-02-12

申请号：US15459954

申请日：2017-03-15

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04L1/18 ,  H04L1/16 ,  H04L5/14 ,  H04W72/04 ,  H04W52/14 ,  H04W52/32 ,  H04L1/00 ,  H04W76/11 ,  H04W52/10 ,  H04W52/24

Abstract: Disclosed are a method and an apparatus for transmitting and receiving data. A method for transmitting an uplink comprises the steps of: a terminal receiving first downlink data from a first cell through a first subframe; the terminal receiving second downlink data from a second cell through the first subframe; the terminal transmitting first uplink data, which is generated based on a first identifier of the first cell, as a reply to the first downlink data through a second subframe, and the terminal transmitting second uplink data, which is generated based on a second identifier of a second cell, as a reply to the second downlink data through the second subframe.

公开(公告)号：US10149260B2

公开(公告)日：2018-12-04

申请号：US15402933

申请日：2017-01-10

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsoo Ko ,  Seokmin Shin ,  Bonghoe Kim ,  Yunjung Yi

IPC: H04J13/00 ,  H04L5/00 ,  H04L27/26 ,  H04W48/16 ,  H04W56/00 ,  H04W72/04

Abstract: A method and apparatus for transmitting and receiving narrowband (NB) synchronization signals. A base station transmits an NB secondary synchronization signal (SSS) indicating N NB cell identities assigned for NB Internet of Things (IoT) operation, a specific sequence generated by multiplying a base sequence with a cover sequence in element units is used for the NB SSS, wherein the base sequence is generated through a second Zadoff-Chu sequence having a length corresponding to a largest prime number less than a length L in a frequency domain, and the specific sequence is divisionally mapped to and transmitted in a plurality of orthogonal frequency division multiplexing (OFDM) symbols in elements each having a length M.

公开(公告)号：US10117208B2

公开(公告)日：2018-10-30

申请号：US14915987

申请日：2014-09-05

Applicant: LG Electronics Inc.

Inventor： Dongyoun Seo ,  Joonkui Ahn ,  Yunjung Yi ,  Bonghoe Kim ,  Daesung Hwang

IPC: H04L5/14 ,  H04W56/00 ,  H04W72/04

Abstract: Provided is a method for determining an uplink transmission timing of a terminal having a plurality of cells configured therein, and a terminal using the method in a wireless communication system. The method comprises receiving timing advance (TA) configuration information, and determining an uplink transmission timing for each of the two cells on the basis of the TA configuration information, wherein the plurality of cells comprise a first cell using a frequency division duplex (FDD) frame structure and a second cell using a time division duplex (TDD) frame structure.

公开(公告)号：US10070401B2

公开(公告)日：2018-09-04

申请号：US15879218

申请日：2018-01-24

Applicant: LG ELECTRONICS INC.

Inventor： Bonghoe Kim ,  Suckchel Yang ,  Yunjung Yi ,  Joonkui Ahn

IPC: H04W56/00 ,  H04J11/00 ,  H04W74/08 ,  H04W24/08 ,  H04W74/00 ,  H04W72/12 ,  H04W72/04

CPC classification number: H04W56/0005 ,  H04J11/0053 ,  H04W24/08 ,  H04W56/00 ,  H04W72/0406 ,  H04W72/1278 ,  H04W74/002 ,  H04W74/004 ,  H04W74/0833

Abstract: A method for supporting a secondary cell (SCell) addition in a radio access system that supports a carrier aggregation (CA), the method is performed by a primary cell (PCell) of a first timing advanced group (TAG) and includes acquiring, from a SCell of a second TAG, random access channel (RACH) resource information related to a random access procedure, wherein the random access procedure is to be performed at the SCell in order to add the SCell to the first TAG; transmitting, to a user equipment (UE), SCell related information, wherein the SCell related information includes a cell identifier of the SCell and the RACH resource information; and receiving, from the UE, a message reporting that the random access procedure at the SCell has failed, wherein the RACH resource information includes RACH parameters required to perform the random access procedure, and wherein a timing advanced value of the first TAG is different from a timing advanced value of the second TAG.

公开(公告)号：US10069554B2

公开(公告)日：2018-09-04

申请号：US15526695

申请日：2015-11-13

Applicant: LG ELECTRONICS INC.

Inventor： Youngtae Kim ,  Bonghoe Kim ,  Kijun Kim ,  Jonghyun Park

IPC: H04B7/06 ,  H04L27/26 ,  H04B7/0452 ,  H04L5/00 ,  H04L1/18

Abstract: The present invention relates to a method by which a base station transmits a reference signal in a wireless communication system supporting a full-dimension antenna, and a device for the same. Particularly, the method comprises the steps of: transmitting, to a terminal, a channel state information-reference signal (CSI-RS) configuration indicating the number of antenna ports for transmitting a full-dimension antenna association reference signal; transmitting, to the terminal, a CSI-RS for at least one first antenna port among whole antenna ports for the full-dimension antenna; and receiving, from the terminal, channel information on all of the antenna ports on the basis of the at least one first antenna port.

公开(公告)号：US10057031B2

公开(公告)日：2018-08-21

申请号：US15692402

申请日：2017-08-31

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Kijun Kim ,  Jonghyun Park ,  Hanbyul Seo ,  Bonghoe Kim

IPC: H04L5/00 ,  H04B7/0417 ,  H04B7/04 ,  H04B7/0456

CPC classification number: H04L5/0051 ,  H04B7/0417 ,  H04B7/0486 ,  H04L5/0016 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0073 ,  H04L5/0091

Abstract: The present invention relates to a wireless communication system. A method for estimating a channel by a user equipment (UE) in a wireless communication system includes receiving information about at least one channel station information (CSI) configuration for reporting CSI of one of a plurality of serving cells, determining that the same precoding matrix is applied to a plurality of resource blocks when all of the at least one CSI configuration is configured to report a precoding matrix indicator (PMI) and a rank indicator (RI), and determining that the precoding matrix is applied to one resource block when CSI configuration configured not to report the PMI and the RI is present among the at least one CSI configuration, and estimating a channel based on a result of the determination.

公开(公告)号：US10050818B2

公开(公告)日：2018-08-14

申请号：US15541214

申请日：2016-01-12

Applicant: LG ELECTRONICS INC.

Inventor： Daesung Hwang ,  Kijun Kim ,  Bonghoe Kim ,  Yunjung Yi

IPC: H04W72/00 ,  H04L27/26

Abstract: One embodiment of the present specification provides a method by which a machine type communication (MTC) device configured to operate only in some bands among the system bands of a cell transmits a demodulation reference signal (DMRS) for the demodulation of uplink data. The method can comprise the steps of: selecting any one DMRS sequence among a plurality of sets of DMRS sequences having a length M according to a group hopping number and allocation area information of a sub-physical resource block (PRB), when an uplink signal is transmitted through the sub-PRB including the M number of subcarriers which is less than twelve subcarriers; and mapping the selected DMRS sequence on the M number of subcarriers of the sub-PRB, and transmitting the same.