公开(公告)号：US20210385039A1

公开(公告)日：2021-12-09

申请号：US17290432

申请日：2019-11-04

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04J13/00 ,  H04W8/22 ,  H04W72/04

Abstract: The present specification relates to a method and apparatus for transmitting a reference signal in a wireless communication system. According to this specification, in a method for transmitting a reference signal in a wireless communication system, a method performed by a base station comprises: transmitting, to a terminal, control information including panel identification information related to identification of a plurality of antenna panels used for transmission of the reference signal, wherein a reference signal sequence used to generate the reference signal is initialized based on the panel identification information by the terminal; and receiving, from the terminal, the reference signal generated based on the initialized reference signal sequence by the terminal.

公开(公告)号：US20210367820A1

公开(公告)日：2021-11-25

申请号：US16954892

申请日：2020-02-17

Applicant: LG Electronics Inc.

Inventor： Hyunsu CHA ,  Sukhyon YOON ,  Kilbom LEE ,  Haewook PARK

IPC: H04L27/26 ,  H04L5/02 ,  H04L5/00 ,  H04W52/42

Abstract: Disclosed herein is a method for transmitting a demodulation reference signal for an uplink control signal in a wireless communication system.
Specifically, the method performed by a terminal includes: generating a low peak to average power ratio (PAPR) sequence based on a length-6 sequence; generating a sequence used for the demodulation reference signal based on the low PAPR sequence; and transmitting, to a base station, the demodulation reference signal based on the sequence used for the demodulation reference signal, in which the length-6 sequence has an 8-phase shift keying (PSK) symbol as each element of a sequence.

公开(公告)号：US20210203387A1

公开(公告)日：2021-07-01

申请号：US17201748

申请日：2021-03-15

Applicant: LG ELECTRONICS INC.

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

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

Abstract: A method for receiving, by a base station, channel state information (CSI) in a wireless communication system. The method includes receiving, from a user equipment (UE), UE capability information related to at least one of channel state information-reference signal (CSI-RS) resources or CSI-RS ports; transmitting, to the UE, CSI-RS configuration information that includes information based on the UE capability information; transmitting, to the UE, a CSI-RS using at least one CSI-RS port based on the CSI-RS configuration information; and receiving, from the UE, the CSI, wherein the CSI is based on a measurement, for the CSI-RS, performed by the UE. Further, the UE capability information includes information for i) a maximum number of the CSI-RS resources and ii) a maximum number of the CSI-RS ports related to number of the CSI-RS resources configured based on the maximum number of the CSI-RS resources.

公开(公告)号：US20210050891A1

公开(公告)日：2021-02-18

申请号：US16995376

申请日：2020-08-17

Applicant: LG ELECTRONICS INC.

Inventor： Haewook PARK ,  Jonghyun PARK

IPC: H04B7/0456 ,  H04W72/04 ,  H04B7/0426 ,  H04B7/06

Abstract: A method for transmitting an uplink signal based on a codebook by a UE in a wireless communication system includes: receiving, from a base station, downlink control information (DCI) for determining a precoding matrix applied to transmission of the uplink signal; determining the precoding matrix applied to the transmission of the uplink signal from a codebook subset related to the transmission of the uplink signal based on the DCI; and transmitting, to the base station, the uplink signal based on the determined precoding matrix, I which based on that a difference between phase values applied to antenna ports for the transmission of the uplink signal is maintained in some antenna ports among all antenna port pairs, the codebook subset includes at least one specific precoding matrix applying different phase values to antenna ports included in all or some of the some antenna ports.

公开(公告)号：US20200280352A1

公开(公告)日：2020-09-03

申请号：US16810536

申请日：2020-03-05

Applicant: LG ELECTRONICS INC.

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

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

Abstract: A method and an apparatus for transmitting and receiving channel state information in a multi-antenna wireless communication system are disclosed. Specifically, a method for reporting channel state information (CSI), by a User Equipment (UE), in a multi-antenna wireless communication system, the method comprising receiving, from a base station, configuration information for single CSI reporting in which a non-precoded CSI-RS based CSI reporting and a beamformed CSI-RS based CSI reporting are combined, reporting a first Precoding Matrix Indicator (PMI) and/or a first Rank Indicator (RI) derived based on a non-precoded CSI-RS to the base station, and reporting a Channel Quality Indicator (CQI), a second PMI, and a second RI based on a beamformed CSI-RS to the base station, wherein a value of the first RI is determined as only a value belonging to a previously determined set.

公开(公告)号：US20200267661A1

公开(公告)日：2020-08-20

申请号：US16791629

申请日：2020-02-14

Applicant: LG Electronics Inc.

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

IPC: H04W52/14 ,  H04W74/00 ,  H04B7/0456 ,  H04W76/27

Abstract: Disclosed herein are a method and a device for transmitting an uplink channel in a wireless communication system. According to the present disclosure, a UE transmits to a base station information associated with uplink transmission supported by the UE and the UE information includes a subset including at least one transmit precoding matrix indicator (TPMI) supported by the UE. The UE may receive from the base station uplink transmission information including a TPMI for transmitting an uplink channel and transmit to the base station the uplink channel based on the uplink transmission information, and the uplink channel may be transmitted through full transmission power configured by the base station based on a case where the TPMI is included in the subset.

公开(公告)号：US20200235797A1

公开(公告)日：2020-07-23

申请号：US16652347

申请日：2018-09-28

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04L5/00 ,  H04W80/08 ,  H04W8/24 ,  H04B17/336

Abstract: The present disclosure relates to a method for reporting channel state information (CSI) in a wireless communication system, which is performed by a terminal, including: receiving information on CSI reporting timing from a base station; receiving, from the base station, first control information, which is information on a frequency region to be subject to subband reporting and second control information, which is information on a maximum number of subbands to be subject to subband reporting; receiving, from the base station, information on a subband starting position for setting a subband group; setting an interval between subbands based on the first control information and the second control information; setting a subband group based on an interval between the starting position and the interval between the subbands; and performing CSI reporting of the set subband group, in which the subband group is a subband to be subject to CSI reporting in the subbands.

公开(公告)号：US20200220583A1

公开(公告)日：2020-07-09

申请号：US16636321

申请日：2018-08-03

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/0408 ,  H04B7/06 ,  H04L5/00 ,  H04B17/336 ,  H04W80/08

Abstract: The present invention relates to a method and an apparatus for performing beam management by a terminal in a wireless communication system. The present invention may provide a method and an apparatus in which a terminal receives, from a base station, configuration information of channel state information (CSI)-RS, and receives the CSI-RS on the basis of the configuration information, wherein the CSI-RS is transmitted through a plurality of antenna ports, and the terminal configures a beam of each of the plurality of antenna ports on the basis of the CSI-RS, wherein the CSI-RS is mapped to subcarriers on a frequency axis at an interval of predetermined number of resource elements (REs), and the CSI-RS is repeatedly transmitted according to the interval of the predetermined number of REs within a specific time period.

公开(公告)号：US20200212983A1

公开(公告)日：2020-07-02

申请号：US16816946

申请日：2020-03-12

Applicant: LG Electronics Inc.

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

IPC: H04B7/06 ,  H04L5/00 ,  H04L1/16 ,  H04L1/00

Abstract: The present disclosure provides a method for reporting channel state information (CSI) in a wireless communication system. Specifically, a method for reporting, by a user equipment (UE), channel state information (CSI) in a wireless communication system includes: receiving, from a base station, control information related to a configuration of a channel state information reference signal (CSI-RS) resource, wherein the control information includes CDM type information representing a type of code division multiplexing (CDM) applied to the CSI-RS resource; receiving, from the base station, an X-port CSI-RS on one or more component CSI-RS resource element (RE) patterns; and reporting, to the base station, the CSI based on the received X-port CSI-RS. Accordingly, the present disclosure can flexibly provide CSI-RS resource locations.

公开(公告)号：US20200187215A1

公开(公告)日：2020-06-11

申请号：US16793672

申请日：2020-02-18

Applicant: LG Electronics Inc.

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

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

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.