公开(公告)号：US20210297135A1

公开(公告)日：2021-09-23

申请号：US17266563

申请日：2019-08-08

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04B17/336

Abstract: The present disclosure relates to a method for reporting CSI by a terminal (user equipment) supported by a plurality of base stations in a wireless communication system, the method comprising: receiving CSI report-related configuration information from at least one base station among the plurality of base stations; receiving a first reference signal via a specific reception beam from a first base station among the plurality of base stations; receiving a second reference signal via the specific reception beam from at least one base station except for the first base station among the plurality of base stations; calculating the CSI by performing measurement on the first reference signal and the second reference signal; and transmitting the CSI to the first base station, wherein the terminal may calculate the CSI by measuring, as interference, the second reference signal received via the specific reception beam.

公开(公告)号：US20210219305A1

公开(公告)日：2021-07-15

申请号：US17214148

申请日：2021-03-26

Applicant: LG Electronics Inc.

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

IPC: H04W72/08 ,  H04B17/336 ,  H04W24/10 ,  H04W72/04

Abstract: A method for measuring interference by a terminal in a wireless communication system according to one embodiment of the present invention may comprise the steps of: receiving interference measurement configuration information including a semi-persistence channel state information-interference (CSI-IM) configuration; receiving a request which indicates measurement of the semi-persistence CSI-IM configuration; and measuring the semi-persistence CSI-IM configuration in response to the received request, wherein the semi-persistence CSI-IM configuration may indicate CSI-IM which is performed at predetermined periods during a predetermined time interval.

公开(公告)号：US20210126692A1

公开(公告)日：2021-04-29

申请号：US16963205

申请日：2019-01-22

Applicant: LG ELECTRONICS INC.

Inventor： Jaehoon CHUNG ,  Jiwon KANG ,  Haewook PARK

IPC: H04B7/06 ,  H04B7/0417 ,  H04B7/0452

Abstract: Disclosed are a method for transmitting and receiving channel state information (CSI) in a wireless communication system and a device therefor. Particularly, a method by which a terminal reports channel state information in a wireless communication system can comprise the steps of: receiving, from a base station, configuration information relating to the CSI report on a downlink channel; receiving, from the base station, at least one CSI-RS for the CSI report; outputting feedback information by means of the at least one CSI-RS; and reporting the CSI to the base station by using the outputted feedback information.

公开(公告)号：US20200343955A1

公开(公告)日：2020-10-29

申请号：US16764832

申请日：2018-11-19

Applicant: LG ELECTRONICS INC.

Inventor： Haewook PARK ,  Kijun KIM ,  Jonghyun PARK ,  Sukhyon YOON

IPC: H04B7/06 ,  H04W72/04 ,  H04W24/10

Abstract: The present specification provides a method for reporting channel state information (CSI) on the basis of priorities in a wireless communication system. More specifically, the method performed by a terminal comprises: a step of receiving, from a base station, downlink control information (DCI) including a reporting trigger for a plurality of CSIs of the same type; and a step of reporting a specific CSI determined on the basis of a predetermined rule among the plurality of CSIs if a time resource and a frequency resource for reporting among the plurality of CSIs are the same, wherein the specific CSI is a CSI that has priority among the plurality of CSIs on the basis of the predetermined rule.

公开(公告)号：US20200295894A1

公开(公告)日：2020-09-17

申请号：US16646476

申请日：2018-09-10

Applicant: LG Electronics Inc.

Inventor： Jiwon KANG ,  Jonghyun PARK ,  Haewook PARK ,  Hyunsu CHA

IPC: H04L5/00 ,  H04W24/10 ,  H04W74/08

Abstract: The present specification provides a method for handling a collision between a demodulation reference signal (DMRS) and a channel state information-reference signal (CSI-RS) in a wireless communication system. Specifically, the method performed by a terminal comprises the steps of: receiving a DMRS from a base station; receiving a CSI-RS from the base station; and when a collision between the DMRS and the CSI-RS occurs on at least one resource element (RE), puncturing a resource associated with the DMRS, or a resource associated with the CSI-RS on the basis of time domain behavior of the CSI-RS.

公开(公告)号：US20200186210A1

公开(公告)日：2020-06-11

申请号：US16793694

申请日：2020-02-18

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun PARK ,  Byounghoon KIM ,  Youngwoo YUN ,  Kijun KIM ,  Haewook PARK

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

Abstract: A method for reporting, by a user equipment (UE), channel state information (CSI) in a wireless communication system includes transmitting, to a base station, UE capability information related to at least one of channel state information-reference signal (CSI-RS) resources or CSI-RS ports; receiving, from the base station, CSI-RS configuration information; receiving, from the base station, CSI-RS based on the CSI-RS configuration information; acquiring the CSI based on the CSI-RS; and reporting, to the base station, the CSI. Further, the UE capability information includes information for a maximum number related to a configuration of the CSI-RS.

公开(公告)号：US20200178287A1

公开(公告)日：2020-06-04

申请号：US16099954

申请日：2018-07-10

Applicant: LG Electronics Inc.

Inventor： Kyuseok KIM ,  Hyungtae KIM ,  Haewook PARK ,  Jiwon KANG ,  Kijun KIM ,  Jonghyun PARK ,  Kilbom LEE

IPC: H04W72/12 ,  H04L5/00

Abstract: Disclosed is a method and apparatus for transmitting and receiving a Reference Signal (RS) performed by a User Equipment (UE) in a wireless communication system. According to the present invention, a method and apparatus includes receiving a first Dedicated Demodulation Reference Signal and a first Physical Downlink Shared Channel (PDSCH); receiving a Physical Downlink Control Channel (PDCCH) including Downlink Control Information (DCI) in relation to a configuration of the second Dedicated Demodulation Reference Signal based on the first PDSCH; and receiving the second Dedicated Demodulation Reference Signal and a second PDSCH based on the PDCCH, and the first Dedicated Demodulation Reference Signal is transmitted only on a single antenna port, and a configuration of the DCI is determined based on the maximum number of symbols to which the second Dedicated Demodulation Reference Signal is mapped.

公开(公告)号：US20200083938A1

公开(公告)日：2020-03-12

申请号：US16496839

申请日：2018-03-23

Applicant: LG Electronics Inc.

Inventor： Haewook PARK ,  Kijun KIM ,  Sangrim LEE

IPC: H04B7/0456 ,  H04B7/06 ,  H04L5/00 ,  H04L27/26

Abstract: Disclosed are a method for transmitting and receiving channel state information in wireless communication system and an apparatus therefor. Specifically, a method for transmitting, by a user equipment (UE), Channel State Information (CSI) in a wireless communication system may include: receiving, from a base station, a channel state information reference signal (CSI-RS) through multiple antenna ports; and reporting, to the base station, CSI, in which the CSI may include selection information indicating a plurality of codewords used for generating a precoding matrix in a codebook for reporting the CSI, and a power coefficient, a phase offset, and a phase shift value applied to each of the plurality of codewords in terms of a configured bandwidth, and the precoding matrix may be generated in units of subbands within the configured bandwidth based on a linear combination of the power coefficient, the phase offset, and the phase change value.

公开(公告)号：US20200007205A1

公开(公告)日：2020-01-02

申请号：US16482618

申请日：2018-01-31

Applicant: LG Electronics Inc. ,  Sogang University Research Foundation

Inventor： Haewook PARK ,  Changhyeon KIM ,  Sungin SHIN ,  Wonjin SUNG ,  Hyukjun LEE ,  Jonghyun PARK

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/08

Abstract: A method for reporting channel state information of a terminal comprises: a step of measuring CSI-RS transmitted from a base station; and a step of reporting CSI generated on the basis of the CSI-RS measurement to the base station, wherein the CSI comprises: a PMI for indicating a precoding matrix from a codebook and an RI for indicating a rank, wherein the PMI comprises a first PMI for a beam group selected by the terminal and a second PMI which comprises a beam sub-group selection information for beams included in the beam group and phase-matching information for each antenna port polarization for the selected beam sub-group, and wherein as the rank increases, the phase-matching information may be indicated with different granularity from each other depending on whether the beam sub-groups selected from the beam group are the same or different.

公开(公告)号：US20190356443A1

公开(公告)日：2019-11-21

申请号：US16529284

申请日：2019-08-01

Applicant: LG Electronics Inc.

Inventor： Kilbom LEE ,  Jiwon KANG ,  Haewook PARK

IPC: H04L5/00 ,  H04W72/04 ,  H04W52/34 ,  H04W52/36 ,  H04W52/32 ,  H04W52/14 ,  H04W52/16

Abstract: The present invention proposes a method of transmitting and receiving an uplink phase tracking reference signal between a user equipment and a base station in a wireless communication system and an apparatus therefore. According to one embodiment applicable to the present invention, the user equipment can transmit an uplink phase tracking reference signal to the base station using a power boosting level determined based on first information and second information received from the base station.