公开(公告)号：US10720972B2

公开(公告)日：2020-07-21

申请号：US15762917

申请日：2016-09-26

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun Park ,  Hyungtae Kim ,  Kijun Kim

IPC: H04L1/00 ,  H04B7/0417 ,  H04L5/00 ,  H04W24/10 ,  H04B7/06 ,  H04B7/0452 ,  H04W72/04

Abstract: Disclosed are a method for transmitting and receiving channel state information in a wireless communication system and a device therefor. Specifically, a method for transmitting channel state information (CSI) by a terminal in a wireless communication system may comprise the steps of: receiving, from a base station, setting information for a single CSI process including a first channel state information-reference signal (CSI-RS) configuration, which is associated with K CSI-RS resources of a beamformed CSI-RS type, K being greater than one, and a second CSI-RS configuration, which is associated with one CSI-RS resource of the beamformed CSI-RS type; reporting, to the base station, an indicator indicating a CSI-RS resource selected from among the K CSI-RS resources; and reporting, to the base station, a channel quality indicator (CQI)/precoding matrix indicator (PMI)/rank indicator (RI) derived on the basis of the one CSI-RS resource.

公开(公告)号：US10707937B2

公开(公告)日：2020-07-07

申请号：US16067473

申请日：2017-01-05

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Jonghyun Park

IPC: H04B7/06 ,  H04B7/02 ,  H04L1/06 ,  H04L5/00 ,  H04B7/0456 ,  H04W72/04

Abstract: A method by which a terminal receives a downlink signal in a wireless access system is disclosed. The method comprises the steps of: receiving information on a plurality of channel status information (CSI) processes including two or more CSI-reference signals (CSI-RSs); receiving a downlink control signal including an indicator indicating a specific CSI-RS; selecting a quasi co-located (QCL) CSI process in which the specific CSI-RS is configured as a representative CSI-RS from among the plurality of CSI processes; selecting, as a QCL CSI-RS or a demodulation reference signal (DM-RS), a CSI-RS corresponding to the most recently reported CSI-RS indicator from among the two or more CSI-RSs included in the QCL CSI process; and receiving a downlink data signal by using the DM-RS and the QCL CSI-RS.

公开(公告)号：US10700751B2

公开(公告)日：2020-06-30

申请号：US16744807

申请日：2020-01-16

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04W24/10 ,  H04L5/00 ,  H04B7/04

Abstract: A method for reporting a channel state information (CSI) based on CSI-reference signal (CSI-RS) to a base station (BS) in a wireless communication system, by a user equipment (UE), includes receiving, from the base station, CSI-RS resource configuration information related to a numbering for a plurality of CSI-RS resources through a radio resource control (RRC) signaling, wherein the CSI-RS resource configuration information includes first CSI-RS configuration information and at least one second CSI-RS configuration information; and determining numbers for the plurality of CSI-RS resources based on the received CSI-RS resource configuration information, wherein a first CSI-RS resource among the plurality of CSI-RS resources corresponds to a first number configured in the first CSI-RS configuration information, and at least one second CSI-RS resource except the first CSI-RS resource among the plurality of CSI-RS resources corresponds to at least one second number configured in the second CSI-RS configuration information.

公开(公告)号：US20200120584A1

公开(公告)日：2020-04-16

申请号：US16619382

申请日：2019-02-21

Applicant: LG Electronics Inc.

Inventor： Yunjung Yi ,  Inkwon Seo ,  Jiwon Kang ,  Jonghyun Park ,  Hyunsoo Ko ,  Sukhyon Yoon

IPC: H04W48/16 ,  H04W74/08 ,  H04L5/00 ,  H04W72/04

Abstract: According to one embodiment of the present disclosure, a method and an apparatus for allowing a user equipment (UE) to effectively monitor a control resource set (CORESET) in order to read remaining minimum system information (RMSI) in a wireless communication system are provided. The UE receives a media access control (MAC) control element (CE) indication, performs a random access channel (RACH) procedure, determines a transmission configuration indicator (TCI) state of CORESET 0 on the basis of the most recent of either the MAC CE indication or the RACH procedure, and monitors CORESET 0 on the basis of the determined TCI state.

公开(公告)号：US10608725B2

公开(公告)日：2020-03-31

申请号：US15758471

申请日：2016-09-06

Applicant: LG ELECTRONICS INC.

Inventor： Kijun Kim ,  Jonghyun Park ,  Seungmin Lee

IPC: H04B7/06 ,  H04B7/024 ,  H04L5/00 ,  H04B7/0456 ,  H04B7/0417

Abstract: The present invention relates to a wireless communication system and, specifically, provides a method for reporting a channel state and an apparatus therefor. A terminal of the present invention receives, from a base station, configuration information for a plurality of sets, each including at least one of a plurality of channel state information-reference signal (CSI-RS) resources configured for a channel state information (CSI) process. The terminal reports CSI measured on the basis of only at least one CSI-RS resource included in a first set which is one of the plurality of sets. Here, the first set may include only some CSI-RS resources of the plurality of CSI-RS resources configured for the CSI process.

公开(公告)号：US10601481B2

公开(公告)日：2020-03-24

申请号：US15773129

申请日：2016-11-02

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun Park ,  Kijun Kim ,  Haewook Park

IPC: H04J11/00 ,  H04B7/06 ,  H04L5/00 ,  H04L5/14 ,  H04W72/04

Abstract: Disclosed herein is a method of receiving a channel state information-reference signal (CSI-RS) of a user equipment (UE) in a wireless communication system, including receiving CSI-RS resource information about a CSI-RS resource location having the CSI-RS mapped thereto, from a base station and receiving the CSI-RS through a CSI-RS resource at a location determined based on the CSI-RS resource information, wherein the CSI-RS resource information includes an index value indicating a location of a CSI-RS resource element where the CSI-RS is transmitted, a period and offset information of a subframe where the CSI-RS is transmitted, and information on a number of antenna ports where the CSI-RS is transmitted, wherein when the index value indicates locations of different CSI-RS resource elements by types of the subframe where the CSI-RS is transmitted and the CSI-RS is set to be transmitted alternately through a normal subframe and a special subframe within one wireless frame, the location of the CSI-RS resource is determined in additional consideration of a type of the subframe in addition to the CSI-RS resource information.

公开(公告)号：US10587316B2

公开(公告)日：2020-03-10

申请号：US16309433

申请日：2017-07-05

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Jonghyun Park ,  Haewook Park ,  Daesung Hwang

IPC: H04B7/0417 ,  H04B7/06 ,  H04B7/0456

Abstract: Disclosed in the present invention is a method by which a terminal reports channel status information (CSI) to a base station in a wireless communication system. The method comprises the steps of: receiving, through an upper layer, information on one CSI process having a first enhanced multiple input multiple output (eMIMO) type and a second eMIMO type; receiving a first channel status information-reference signal (CSI-RS) corresponding to the first eMIMO type; periodically reporting, to the base station, first CSI measured on the basis of the first CSI-RS; receiving a second CSI-RS, which corresponds to the second eMIMO type, beamformed on the basis of the first CSI; and periodically reporting, to the base station, second CSI measured on the basis of the second CSI-RS, wherein a priority of the first CSI is set to be equal to a priority of a CSI-RS resource indicator (CRI).

公开(公告)号：US10581571B2

公开(公告)日：2020-03-03

申请号：US15770101

申请日：2016-10-21

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook Kim ,  Joonkui Ahn ,  Kijun Kim ,  Jonghyun Park ,  Hanjun Park ,  Yunjung Yi

IPC: H04L5/00 ,  H04W48/16 ,  H04W72/04 ,  H04W16/14 ,  H04W74/08

Abstract: The embodiments of the present invention relate to a wireless access system supporting an unlicensed band and to methods for generating a discovery signal (DRS), methods for generating and transmitting a channel state information reference signal included in the DRS, and devices for supporting same. The method for transmitting a discovery signal (DRS) including a channel state information reference signal (CSI-RS) in a wireless access system supporting an unlicensed band, according to one embodiment of the present invention, may comprise the steps of: initiating, in subframe n (SF #n), a listen-before-talk (LBT) procedure for checking whether the unlicensed band is idle or not; if an LBT procedure succeeds in SF #n+k, generating a sequence for transmitting the CSI-RS on the basis of the subframe index j indicating SF #j; and transmitting the DRS, including the CSI-RS, in SF #n+k. Herein n, k, and j are preferably integers greater than or equal to 0 and less than or equal to 9.

公开(公告)号：US10574486B2

公开(公告)日：2020-02-25

申请号：US15575972

申请日：2016-06-03

Applicant: LG ELECTRONICS INC.

Inventor： Haewook Park ,  Jonghyun Park ,  Kijun Kim

IPC: H04L25/02 ,  H04B7/04 ,  H04L25/03 ,  H04B7/06 ,  H04B17/309 ,  H04W24/10

Abstract: A channel measurement method in a wireless communication system and an apparatus therefor are disclosed. Specifically, a method for measuring a channel by a terminal in the wireless communication system may comprise the steps of: receiving, from a base station, a reference signal on part of antenna ports within a two-dimensional antenna port array; measuring channels for the part of antenna ports on the basis of the reference signal received from the base station; and reconstructing a channel for an antenna port which is not used for transmission of the reference signal within the two-dimensional antenna port array, using the channel measurement result, to reconstruct channels for all antenna ports within the two-dimensional antenna port array.

公开(公告)号：US10536206B2

公开(公告)日：2020-01-14

申请号：US16063226

申请日：2016-12-16

Applicant: LG ELECTRONICS INC.

Inventor： Haewook Park ,  Jonghyun Park ,  Kijun Kim

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

Abstract: According to one aspect of the present invention, a method for reporting channel state information (CSI) of a terminal in a wireless communication system comprises the steps of: receiving, from a base station, channel state information-reference signal (CSI-RS) resource information on a CSI-RS resource to which a CSI-RS is mapped; receiving the CSI-RS transmitted through one or more antenna ports from the base station on the basis of the received CSI-RS resource information; and reporting, to the base station, the CSI generated on the basis of the received CSI-RS.