公开(公告)号：US10027384B2

公开(公告)日：2018-07-17

申请号：US15452395

申请日：2017-03-07

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun Park ,  Kijun Kim ,  Hanjun Park ,  Hanbyul Seo ,  Byounghoon Kim ,  Hyungtae Kim

IPC: H04B7/024 ,  H04B7/06 ,  H04W72/04

Abstract: The present invention relates to a wireless communication system, and more particularly, to a method and device for performing or supporting NIB coordinated multi-point (CoMP) transmission in a wireless communication system. The method and device for performing NIB CoMP transmission in the wireless communication system according to an embodiment of the present invention include: receiving signaling comprising at least one CoMP hypothesis set and at least one benefit metric from a first network node, at a second network node; and performing CoMP transmission based on the at least one CoMP hypothesis set, at the second network node. The at least one CoMP hypothesis set comprises information on hypothetical operation of CoMP network nodes.

公开(公告)号：US09986444B2

公开(公告)日：2018-05-29

申请号：US14353217

申请日：2012-10-29

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Hanbyul Seo

IPC: H04W24/02 ,  H04B7/024 ,  H04B7/06 ,  H04L5/00 ,  H04L1/20

CPC classification number: H04W24/02 ,  H04B7/024 ,  H04B7/0626 ,  H04L1/20 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0057

Abstract: The present invention relates to a wireless communication system and, in particular, to a method and apparatus for feeding back aggregated CSI using multiple CSI-RS setting information in a wireless communication system which supports CoMP. The method of a terminal feeding back aggregated CSI for cooperative transmission in the wireless communication system according to an embodiment of the present invention, includes the steps of respectively receiving first CSI-RS setting information and second CSI setting information for a first base station and a second base station participating in the cooperative transmission; receiving a first CSI-RS and a second CSI-RS setting information; calculating first CSI and second CSI using the first CSI-RS and the second CSI-RS; and transmitting the aggregated CSI calculated on the basis of the first CSI and the second CSI, wherein the first CSI-RS and the second CSI-RS can be transmitted on the same subframe.

公开(公告)号：US09955511B2

公开(公告)日：2018-04-24

申请号：US15293008

申请日：2016-10-13

Applicant: LG ELECTRONICS INC.

Inventor： Illsoo Sohn ,  Kijun Kim ,  Jonghyun Park ,  Hyungtae Kim

IPC: H04W74/08 ,  H04W24/10 ,  H04L1/06 ,  H04L1/00 ,  H04B7/024 ,  H04B7/06

CPC classification number: H04W74/0875 ,  H04B7/024 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0647 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/0693 ,  H04W24/10

Abstract: The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and apparatus for a terminal to report channel state information in a wireless communication system, the method comprising: a step of transmitting first channel state information according to a first channel state information (CSI) process for reporting the first channel state information periodically for every first period; a step of transmitting second channel state information according to a second CSI process for reporting the second channel state information periodically for every second period; and a step of dropping the transmission of either the first channel state information or the second channel state information on the basis of the CSI process index of each of the first and second CSI processes in the event the first channel state information transmission timing and the second channel state information transmission timing conflict.

公开(公告)号：US09949163B2

公开(公告)日：2018-04-17

申请号：US15496289

申请日：2017-04-25

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Jonghyun Park ,  Kijun Kim

IPC: H04W24/10 ,  H04B7/06 ,  H04B7/024

CPC classification number: H04W24/10 ,  H04B7/024 ,  H04B7/04 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/0658 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0057 ,  H04L5/0073 ,  H04L5/0082 ,  H04L5/0091 ,  H04L5/0094 ,  H04W76/27 ,  H04W88/08

Abstract: The present invention relates to a method for receiving a reference CSI configuration information and a following CSI configuration information which is configured to report a same RI (Rank Indicator) as the reference CSI configuration information, receiving a first CSI-RS (Channel State Information-Resource Signal) configuration information associated with the reference CSI configuration and a second CSI-RS configuration information associated with the following CSI configuration, number of CSI-RS antenna ports according to the second CSI-RS configuration information is same as number of CST-RS antenna ports according to the first CSI-RS configuration information; and transmitting CSI determined based on at least one of the first CSI-RS configuration information and the second CSI-RS configuration information.

公开(公告)号：US09935702B2

公开(公告)日：2018-04-03

申请号：US15013445

申请日：2016-02-02

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Jonghyun Park ,  Kijun Kim

IPC: H04B7/06 ,  H04B7/0456 ,  H04B7/0417 ,  H04L5/00 ,  H04B7/0452 ,  H04B7/04

CPC classification number: H04B7/0632 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0486 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0689 ,  H04L5/0048 ,  H04L5/006

Abstract: A method of reporting channel state information to a base station at a user equipment (UE) in a wireless communication system is disclosed. The method includes configuring a two-dimensional (2D) antenna array transmission mode of a downlink data channel via a higher layer, receiving an indicator corresponding to one of transmission schemes of the downlink data channel via the higher layer, calculating the channel state information on the assumption of one transmission scheme of the downlink data channel corresponding to the indicator, and reporting the calculated channel state information to the base station. The transmission schemes of the downlink data channel include a demodulation-reference signal (DM-RS) based large delay (LD) cyclic delay diversity (CDD) transmission scheme and a closed loop multiplexing transmission scheme in the 2D antenna array transmission mode.

公开(公告)号：US09930655B2

公开(公告)日：2018-03-27

申请号：US14956646

申请日：2015-12-02

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun Park ,  Inkwon Seo ,  Hyungtae Kim ,  Hanbyul Seo ,  Seungmin Lee ,  Kijun Kim ,  Youngseob Choi

IPC: H04W72/04 ,  H04W72/08 ,  H04W52/24 ,  H04B7/0417 ,  H04L5/00 ,  H04L25/02 ,  H04W52/14 ,  H04W52/40 ,  H04W88/08

CPC classification number: H04W72/042 ,  H04B7/0417 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0057 ,  H04L25/0224 ,  H04W52/146 ,  H04W52/242 ,  H04W52/40 ,  H04W72/0413 ,  H04W72/08 ,  H04W72/085 ,  H04W88/085

Abstract: A method of performing measurement at a user equipment (UE) in a wireless communication system is disclosed. The method includes receiving channel status information-reference signals (CSI-RSs) for channel status information feedback from plurality of transmission points (TPs), performing radio resource management (RRM) measurement based on the CSI-RSs, and selecting one or more TPs for receiving a signal from among the plurality of TPs based on the result of measurement.

公开(公告)号：US09924523B2

公开(公告)日：2018-03-20

申请号：US15030570

申请日：2014-11-11

Applicant: LG ELECTRONICS INC.

Inventor： Hyunho Lee ,  Kijun Kim ,  Hyungtae Kim

IPC: H04W72/08 ,  H04J11/00 ,  H04W28/04 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04W72/082 ,  H04J11/005 ,  H04L5/0094 ,  H04W28/04 ,  H04W72/0406

Abstract: According to one embodiment of the present invention, a method for receiving information for canceling interference of a terminal is disclosed. The method is performed by the terminal and can comprise the steps of: receiving, from a serving base station, information on the allocation of resource regions of neighboring cells for canceling an interference signal; and using the resource region allocation information in order to cancel the interference signal in a downlink signal.

公开(公告)号：US09912392B2

公开(公告)日：2018-03-06

申请号：US14767241

申请日：2014-06-05

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Hanjun Park

IPC: H04B7/04 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/0417 ,  H04L5/00 ,  H04W72/04 ,  H04W72/06 ,  H04W88/02

CPC classification number: H04B7/0486 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0639 ,  H04B17/382 ,  H04L5/0023 ,  H04L5/0057 ,  H04W72/0413 ,  H04W72/06 ,  H04W88/02

Abstract: The present invention relates to a wireless communication system. A method for a terminal for transmitting channel state information (CSI) in a wireless communication system according to an embodiment of the present invention comprises the steps of: in a reporting mode for a four-antenna port, joint-encoding a rank indicator (RI) and a first precoding matrix indicator (PMI) into a single encoding value; and transmitting channel state information comprising the encoding value, wherein if RI is 1, then a codebook index may have the same value as the encoding value, and if RI is 2, then the codebook index may be less than the encoding value by 8.

公开(公告)号：US09900788B2

公开(公告)日：2018-02-20

申请号：US14769516

申请日：2014-02-21

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Byounghoon Kim ,  Kijun Kim

IPC: H04W84/18 ,  H04W16/32 ,  H04B7/0452 ,  H04B7/04 ,  H04B7/06 ,  H04W72/06

CPC classification number: H04W16/32 ,  H04B7/0452 ,  H04B7/0486 ,  H04B7/0626 ,  H04B7/063 ,  H04W72/06

Abstract: The present invention relates to a wireless communications system. A method for enabling a terminal to determine the bit length of a rank index (RI) according to an embodiment of the present invention includes the steps of: receiving the information of the number of a first reference signal (RS) antenna ports of a first cell and of the number of a second RS antenna ports of a second cell; receiving the information of the number of first layers and second layers; mapping the number of the first layers to one of the first and the second cell and the number of the second layers to the other cell; and determining the bit length of a first RI based on the minimum value among the number of the first layers and the number of the RS antenna ports associated with the number of the first layers, and the bit length of a second RI based on the minimum value among the number of the second layers and the number of the RS antenna ports associated with the number of the second layers.

公开(公告)号：US09887818B2

公开(公告)日：2018-02-06

申请号：US14893501

申请日：2014-07-25

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Jonghyun Park ,  Hanbyul Seo

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04L5/0057 ,  H04L5/0073 ,  H04W72/0446

Abstract: The present invention relates to a wireless communication system. A method for a terminal reporting channel state information (CSI) in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: receiving, from a second cell, which is a serving cell and neighboring a first cell, resource block allocation information related to downlink data of the second cell; selecting, based on the resource block allocation information, either a first interface measurement resource (IMR) in which interference from the second cell is present or a second IMR in which interference from the second cell is absent; and transmitting, to the first cell, a channel quality indicator (CQI) calculated based on the IMR which has been selected.