公开(公告)号：US10116414B2

公开(公告)日：2018-10-30

申请号：US15218557

申请日：2016-07-25

Applicant: LG ELECTRONICS INC.

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

IPC: H04L1/00 ,  H04L27/34 ,  H04W72/04 ,  H04L5/00 ,  H04L27/00 ,  H04L25/03 ,  H04L27/18

Abstract: A method and an evolved Node B (eNB) for receiving Channel Status Information (CSI) in a wireless access system are discussed. The method according to an embodiment includes transmitting a Physical Downlink Shared Channel (PDSCH); and receiving CSI including a Channel Quality Indication (CQI) index associated with the PDSCH. The CQI index is selected from one of a first CQI table for supporting up to a 64 Quadrature Amplitude Modulation (QAM) scheme and a second CQI table for supporting up to a 256 QAM scheme. CQI indices 12 to 15 of the first CQI table are used for the 64 QAM scheme and CQI indices 12 to 15 of the second CQI table are used for the 256 QAM scheme. A size of each of the first and the second CQI tables is the same.

公开(公告)号：US10079632B2

公开(公告)日：2018-09-18

申请号：US14917498

申请日：2014-12-29

Applicant: LG Electronics Inc.

Inventor： Jonghyun Park ,  Yunjung Yi ,  Seungmin Lee ,  Bonghoe Kim ,  Kijun Kim

IPC: H04W72/04 ,  H04B7/06 ,  H04J11/00 ,  H04L1/18 ,  H04L12/741 ,  H04L1/00

CPC classification number: H04B7/0632 ,  H04J11/00 ,  H04L1/0001 ,  H04L1/0003 ,  H04L1/0016 ,  H04L1/0026 ,  H04L1/0032 ,  H04L1/1685 ,  H04L1/1809 ,  H04L1/1812 ,  H04L1/1832 ,  H04L1/1848 ,  H04L45/745 ,  H04W72/042

Abstract: In this application, a method for a terminal reporting to a base station a channel quality indicator (CQI) in a wireless communication system is disclosed. More specifically, the method comprises the steps of: calculating a precoding matrix index and a rank indicator; and selecting and reporting the CQI index from one of a first CQI index table and a second CQI index table under the assumption that the precoding matrix index and the rank indicator are applied, wherein the first CQI index table and the second CQI index table indicate a modulation order and a coding rate indicated by the CQI index, and the second CQI index table supports a higher modulation order than the first CQI index table.

公开(公告)号：US10070426B2

公开(公告)日：2018-09-04

申请号：US15652040

申请日：2017-07-17

Applicant: LG ELECTRONICS INC.

Inventor： Suckchel Yang ,  Joonkui Ahn ,  Bonghoe Kim

IPC: H04W4/00 ,  H04W72/04 ,  H04W24/04 ,  H04L5/00 ,  H04L1/16 ,  H04L1/18 ,  H04L1/00

Abstract: The present invention relates to a wireless communication system. In detail, the invention relates to a method for a terminal to transmit a UCI in a carrier aggregation-based wireless communication system, and to an apparatus therefor, wherein the method involves the steps of: forming a first cell group having a PCell; forming a second cell group having one or more SCells; receiving one or more data in the second cell group; and transmitting HARQ-ACK information on the one or more data through a PUCCH, wherein, when the first and second cell groups are managed by an identical base station, the HARQ-ACK information is transmitted in the PCell, and, when the first and second cell groups are managed by different base stations, the HARQ-ACK information is transmitted in the second cell group.

公开(公告)号：US10063395B2

公开(公告)日：2018-08-28

申请号：US15541237

申请日：2016-01-05

Applicant: LG ELECTRONICS INC.

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

IPC: H04L25/02 ,  H04B7/06

CPC classification number: H04L25/0242 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/0478 ,  H04B7/06 ,  H04B7/0626 ,  H04B7/065 ,  H04B7/10 ,  H04L5/005 ,  H04L25/02 ,  H04L25/0204 ,  H04L25/0228

Abstract: A method for estimating a channel status by a base station in a wireless communication system according to an embodiment of the present invention comprises the steps of: obtaining an uplink channel matrix by using a sounding reference signal (SRS) received from a terminal; transmitting a channel state information-reference signal (CSI-RS) through at least some antenna devices in a two-dimensional antenna array of the base station; receiving a channel quality indicator (CQI) calculated on the basis of the CSI-RS transmission; and obtaining, through a predetermined correction factor obtained on the basis of the CQI and the uplink channel matrix, a downlink channel matrix for the entire two-dimensional antenna array comprising the remaining antenna devices through which the CSI-RS is not transmitted.

公开(公告)号：US10015750B2

公开(公告)日：2018-07-03

申请号：US15101834

申请日：2014-12-05

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/14 ,  H04W72/04 ,  H04W52/28 ,  H04W52/32

CPC classification number: H04W52/146 ,  H04W52/08 ,  H04W52/16 ,  H04W52/286 ,  H04W52/325 ,  H04W52/48 ,  H04W72/042

Abstract: The present invention relates to a wireless access system supporting machine-type communication (MTC), and more specifically, to methods for controlling uplink transmission power by an MTC terminal and apparatuses supporting same. A method for controlling uplink transmission power by an MTC terminal in a wireless access system supporting machine-type communication (MTC), according to one embodiment of the present invention, comprises the steps of: repeatedly receiving, a specific number of times, a first downlink control channel including a first transmission power command (TPC); transmitting, a specific number of times, a first uplink channel according to the transmission power indicated by the first TPC; and receiving a second downlink control channel including a second TPC which commands adjustment of transmission power while transmitting, the specific number of times, the first uplink channel, wherein, while the first uplink channel is being transmitted repeatedly, the first uplink channel can be transmitted according to the transmission power indicated by the first TPC, without reflecting the second TPC.

公开(公告)号：US10003392B2

公开(公告)日：2018-06-19

申请号：US15532946

申请日：2015-06-24

Applicant: LG ELECTRONICS INC.

Inventor： Jiwon Kang ,  Bonghoe Kim ,  Sunam Kim ,  Kitae Kim ,  Kilbom Lee ,  Heejin Kim

IPC: H04B7/06 ,  H04L5/00 ,  H04B7/0413

CPC classification number: H04B7/0626 ,  H04B7/04 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/0619 ,  H04B7/063 ,  H04L5/0048 ,  H04L5/0057

Abstract: Disclosed in the present application is a method by which a terminal generates channel state information for multi-antenna-based beamforming in a wireless communication system. Specifically, the method comprises the steps of: receiving a first pilot signal and a second pilot signal from a base station; selecting a first rank on the basis of the first pilot signal and selecting a second rank on the basis of the second pilot signal; setting a rank search range for a three-dimensional channel on the basis of the first rank and the second rank; and selecting a rank for the three-dimensional channel within the rank search range and a precoder corresponding to the rank for the three-dimensional channel.

公开(公告)号：US09980258B2

公开(公告)日：2018-05-22

申请号：US14910521

申请日：2014-08-06

Applicant: LG ELECTRONICS INC.

Inventor： Yunjung Yi ,  Joonkui Ahn ,  Dongyoun Seo ,  Bonghoe Kim ,  Suckchel Yang ,  Kijun Kim

IPC: H04W72/04 ,  H04W52/14 ,  H04W52/36 ,  H04L5/00 ,  H04W52/32

CPC classification number: H04W72/0413 ,  H04L5/001 ,  H04L5/0035 ,  H04L5/0044 ,  H04L5/0094 ,  H04W52/146 ,  H04W52/325 ,  H04W52/365

Abstract: The invention is related to a wireless communication by user equipment (UE) based on capability of the UE. According to this application, signals are received on a downlink channel including a downlink control channel and a downlink data channel, a parameter is configured for the wireless communication based on the capability of the UE and information in the downlink control channel, and signals are transmitted on a uplink channel based on the configured parameter, wherein the signals are transmitted to at least two cells.

公开(公告)号：US09936506B2

公开(公告)日：2018-04-03

申请号：US15327624

申请日：2016-05-09

Applicant: LG ELECTRONICS INC.

Inventor： Bonghoe Kim ,  Suckchel Yang ,  Yunjung Yi

IPC: H04W72/04 ,  H04W4/00 ,  H04W72/10

CPC classification number: H04W72/0453 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0064 ,  H04L5/0087 ,  H04L5/1469 ,  H04W4/70 ,  H04W72/0446 ,  H04W72/10

Abstract: According to an embodiment of the present invention, an MTC UE performs frequency retuning in order to perform uplink transmission through different subbands in consecutive first and second subframes, wherein positions of symbols, used for frequency retuning within the range of last n symbols of the first subframe to first n symbols of the second subframe, are determined according to priority between uplink signals to be transmitted.

公开(公告)号：US09923674B2

公开(公告)日：2018-03-20

申请号：US15022854

申请日：2014-10-07

Applicant: LG ELECTRONICS INC.

Inventor： Hyangsun You ,  Bonghoe Kim ,  Suckchel Yang ,  Yunjung Yi

IPC: H04L1/18 ,  H04W4/00 ,  H04W72/04

CPC classification number: H04L1/1861 ,  H04L1/189 ,  H04L1/1896 ,  H04W4/70 ,  H04W72/042

Abstract: A method is provided for transmitting uplink data. The method is performed by a machine type communication (MTC) device that transmits initially a bundle of repeated physical uplink shared channels (PUSCHs) including same uplink data to a base station on a plurality of uplink subframes, receives a hybrid automatic repeat request (HARQ) response signal from the base station in response to the bundle of repeated PUSCHs, receives an indication of a physical downlink shared channel (PDSCH) repetition number from the base station, determines a repetition number of a PUSCH including the same uplink data based on the indication, when the HARQ response signal is a negative-acknowledgement (NACK), and retransmits the bundle of repeated PUSCHs according to the determined repetition number of the PUSCH on the plurality of uplink subframes, to the base station. The indication is included in a modulation and coding scheme (MCS) field of a physical downlink control channel (PDCCH).

公开(公告)号：US09907030B2

公开(公告)日：2018-02-27

申请号：US15385562

申请日：2016-12-20

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/32 ,  H04W52/14 ,  H04W52/24 ,  H04W72/04 ,  H04W76/02

CPC classification number: H04W52/325 ,  H04W52/146 ,  H04W52/242 ,  H04W52/34 ,  H04W72/0413 ,  H04W72/0473 ,  H04W76/19 ,  H04W76/20

Abstract: Provided are a method of controlling transmission power for an uplink control channel for a terminal to which a plurality of cells are assigned, and a device using the method. The method receives a first set of parameters and a second set of parameters that are used for determining transmission power for the uplink control channel and determines the transmission power for the uplink control channel by using the first set of parameters or the second set of parameters, wherein the first set of parameters or the second set of parameters is used according to one of the cells to which the uplink control channel is transmitted.