公开(公告)号：US20200136683A1

公开(公告)日：2020-04-30

申请号：US16726134

申请日：2019-12-23

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae KIM ,  Jonghyun PARK ,  Haewook PARK ,  Daesung HWANG

IPC: H04B7/0417 ,  H04B7/06

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：US20200099488A1

公开(公告)日：2020-03-26

申请号：US16495090

申请日：2018-03-19

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae KIM ,  Jiwon KANG ,  Kijun KIM ,  Jonghyun PARK ,  Haewook PARK

IPC: H04L5/00 ,  H04B7/0456 ,  H04W72/04

Abstract: Disclosed is a method for transmitting an uplink signal by a terminal in a wireless communication system. The method comprises the steps of: transmitting multiple precoded reference signals, to each of which a precoder cyclic pattern is applied in a predetermined resource unit, to a base station; receiving, from the base station, information indicating one among the multiple precoded reference signals; and transmitting an uplink data signal and an uplink demodulation reference signal to the base station by using a precoder cyclic pattern which has been applied to the indicated precoded reference signal.

公开(公告)号：US20200067584A1

公开(公告)日：2020-02-27

申请号：US16665541

申请日：2019-10-28

Applicant: LG Electronics Inc.

Inventor： Jiwon KANG ,  Suckchel YANG ,  Hyungtae KIM ,  Jonghyun PARK ,  Kunil YUM

IPC: H04B7/06 ,  H04W72/04 ,  H04L5/00 ,  H04W48/10

Abstract: The present disclosure provides a method for reporting CSI in a wireless communication system. In the present disclosure, a method for reporting channel state information (CSI) in a wireless communication system, which is performed by a UE includes: receiving, from an eNB, downlink control information (DCI) indicating activation of semi-persistent (SP) CSI reporting, in which the downlink control information is scrambled with a specific RNTI distinguished from a Cell-Radio Network Temporary Identity (C-RNTI); and reporting, to the eNB, the semi-persistent CSI through a physical uplink shared channel (PUSCH) based on the received downlink control information.

公开(公告)号：US20200052748A1

公开(公告)日：2020-02-13

申请号：US16482579

申请日：2018-01-31

Applicant: LG Electronics Inc.

Inventor： Hyungtae KIM ,  Haewook PARK

IPC: H04B7/0456 ,  H04B7/0417

Abstract: Disclosed in the present application is a method for a terminal periodically reporting, to a base station, channel state information on the basis of a linear combination codebook in a wireless communication system. Particularly, the method comprises the steps of: receiving a reference signal from the base station; and reporting channel state information which has been outputted to the base station on the basis of the reference signal, wherein the channel state information includes a channel quality indicator and information relating to a precoding matrix index, and when a rank outputted on the basis of the reference signal is 2, the precoding matrix index is selected from a codebook which has been sub-sampled, wherein a precoding matrix constituting the sub-sampled codebook comprises a first column vector for a first layer and a second column vector for a second layer that crosses the first column vector, wherein the information relating to the precoding matrix index indicates three co-phase coefficients defining the first column vector as a 4-bit size, and wherein three co-phase coefficients defining the second column vector are identical to the three co-phase coefficients defining the first column vector.

公开(公告)号：US20190386854A1

公开(公告)日：2019-12-19

申请号：US16554227

申请日：2019-08-28

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae KIM ,  Kijun KIM ,  Jonghyun PARK ,  Youngtae KIM

IPC: H04L25/02 ,  H04B7/0452 ,  H04B7/0456 ,  H04J13/00 ,  H04J13/18 ,  H04L5/00 ,  H04W72/04

Abstract: A method by which a terminal estimates a channel in a wireless access system can comprises the steps of: receiving mapping information on a port and a layer of a data demodulation reference signal (DMRS); receiving change information on whether the port of the DMRS has been changed; and determining a change in port information on the basis of an indicator and estimating a channel of the DMRS.

公开(公告)号：US20190341974A1

公开(公告)日：2019-11-07

申请号：US16475366

申请日：2018-01-02

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae KIM ,  Jiwon KANG ,  Hyunsoo KO ,  Kijun KIM ,  Jonghyun PARK ,  Haewook PARK

IPC: H04B7/0417 ,  H04B7/06 ,  H04W72/08 ,  H04B7/0456 ,  H04L5/00

Abstract: Disclosed is a method for a terminal to report channel state information to a base station in a wireless communication system. The method comprises the steps of: receiving a first reference signal and a second reference signal which are cyclically beamformed in different directions in a predetermined resource unit from the base station; and reporting the channel state information to the base station on the basis of the first reference signal and the second reference signal, wherein the channel state information comprises a first precoder group corresponding to the first reference signal and a second precoder group corresponding to the second reference signal.

公开(公告)号：US20190312668A1

公开(公告)日：2019-10-10

申请号：US16064325

申请日：2017-12-28

Applicant: LG Electronics Inc.

Inventor： Jonghyun PARK ,  Jiwon KANG ,  Kijun KIM ,  Hyungtae KIM

IPC: H04L1/00 ,  H04L5/00 ,  H04W72/04 ,  H04W16/28

Abstract: A method for receiving a Channel State Information (CSI)-Reference Signal (RS) resource in a wireless communication system, the method performed by a User Equipment (UE) may include: receiving, from a base station, a configuration for a CSI-RS resource set including a plurality of CSI-RS resources; receiving the plurality of CSI-RS resources; and when a transmission via different transmission beams of the plurality of CSI-RS resources is configured, reporting a CSI-RS Resource Indicator (CRI) for the plurality of CSI-RS resources to the base station, when a transmission via a same transmission beam of the plurality of CSI-RS resources is configured, not reporting the CRI for the plurality of CSI-RS resources to the base station.

公开(公告)号：US20190165847A1

公开(公告)日：2019-05-30

申请号：US16202562

申请日：2018-11-28

Applicant: LG Electronics Inc.

Inventor： Hyungtae KIM ,  Jiwon KANG

IPC: H04B7/06 ,  H04W72/04 ,  H04B7/024 ,  H04L5/00 ,  H04W76/27 ,  H04W24/10 ,  H04B7/0456

Abstract: The present invention provides a method of reporting, by a UE, CSI in a wireless communication system, the method comprising: receiving, from a base station, a RRC signaling that comprises a plurality of reporting settings, wherein each reporting setting comprises a corresponding list of first values representing time offsets for transmitting a CSI report, forming a plurality of lists of first values; receiving, from the base station, DCI triggering the CSI report, wherein the DCI comprises an index value related to a time at which to transmit the CSI report on a PUSCH; determining, based on the DCI, a plurality of list entries; determining a second value that is largest among the plurality of list entries; and transmitting, to the base station, the CSI report on the PUSCH based on the second value.

公开(公告)号：US20190140723A1

公开(公告)日：2019-05-09

申请号：US16065452

申请日：2017-07-26

Applicant: LG Electronics Inc.

Inventor： Kunil YUM ,  Kijun KIM ,  Yunjung YI ,  Jiwon KANG ,  Hyungtae KIM

IPC: H04B7/06 ,  H04B7/0417 ,  H04L5/00 ,  H04W72/04 ,  H04W76/27

Abstract: A channel state reporting method on the basis of an aperiodic channel state information-reference signal (CSI-RS) in a wireless communication system according to an embodiment of the present invention may comprise the steps of: receiving an aperiodic channel state information (CSI) request; and transmitting aperiodic CSI-RS-based CSI at a timing corresponding to one among a plurality of candidate values in response to the aperiodic CSI request, wherein the plurality of candidate values are selected according to a CSI-related parameter, and the CSI-related parameter includes at least one among a type of information included in the CSI, frequency granularity of the CSI, use or non-use of a code book when the CSI is derived, and the number of antenna ports of the CSI-RS.

公开(公告)号：US20190013855A1

公开(公告)日：2019-01-10

申请号：US16067499

申请日：2017-01-05

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae KIM

IPC: H04B7/06 ,  H04B7/0456 ,  H04B7/0452 ,  H04W76/27

CPC classification number: H04B7/0626 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0632 ,  H04B7/0639 ,  H04W76/27

Abstract: Disclosed in the present application is a method by which a terminal reports channel state information (CSI) to a base station in a wireless communication system. Specifically, the method comprises the steps of: calculating a first CSI as to compare the same with CSI which has been most recently reported; reporting the first CSI to a base station if the calculated first CSI is not the same as the CSI which has been most recently reported; and reporting a second CSI to the base station if the calculated first CSI is the same as the CSI which has been most recently reported, wherein the second CSI is CSI calculated on the basis of the assumption that interference affecting a terminal has been removed.