公开(公告)号：US20210351881A1

公开(公告)日：2021-11-11

申请号：US17278222

申请日：2019-09-23

Applicant: LG ELECTRONICS INC.

Inventor： Haewook PARK ,  Jiwon KANG ,  Hyungtae KIM

IPC: H04L5/00 ,  H04W24/10

Abstract: A method of reporting CSI in a COMP system by a terminal, receiving DRX configuration information from a first and a second base station; receiving first configuration information related to CSI report of a first BWP and second configuration information related to a CSI report of a second BWP from the first and the second base station, the first BWP is composed of a plurality of first subbands including at least one first subband, the second BWP is composed of a plurality of second subbands including at least one second subband, and the first configuration information and the second configuration information are received only during a specific time based on the DRX configuration information; and based on the at least one first subband and second subband overlapping partially or entirely, reporting a first CSI for overlapping at least one subband to the first and the second base station.

公开(公告)号：US20210266769A1

公开(公告)日：2021-08-26

申请号：US17069090

申请日：2020-10-13

Applicant: LG ELECTRONICS INC.

Inventor： Jaehoon CHUNG ,  Kyuseok KIM ,  Jiwon KANG ,  Haewook PARK

IPC: H04W24/10 ,  H04W72/04 ,  H04W76/28

Abstract: Provided are a method for transmitting and receiving channel state information (CSI) and an apparatus for the same. Specifically, the method includes receiving configuration information related to a CSI report, wherein the configuration information includes first information related with a time domain behavior of the CSI report, and based on the first information, one of (i) periodic, (ii) semi-persistent or (iii) aperiodic may be configured as a behavior of the CSI report in the time domain, receiving second information related with a time domain behavior of the CSI report, wherein the second information may be configured for a time duration including a plurality of specific units based on a specific unit in the time domain, receiving a reference signal for a CSI measurement, performing the CSI measurement based on the reference signal, and reporting the CSI in the time domain based on the first information and the second information.

公开(公告)号：US20210242914A1

公开(公告)日：2021-08-05

申请号：US17263510

申请日：2019-07-29

Applicant: LG ELECTRONICS INC.

Inventor： Haewook PARK ,  Hyungtae KIM ,  Jiwon KANG ,  Sangrim LEE

IPC: H04B7/0456 ,  H04L5/00

Abstract: The present disclosure relates to a method, performed by a user equipment (UE), for reporting channel state information (CSI) in a wireless communication system and an apparatus therefor. According to the present disclosure, the UE receives a channel state information reference signal (CSI-RS) from a base station through a multiple antenna port; and reports the CSI to the base station, wherein the CSI includes a precoding matrix indicator for a codebook generated by linear combination, wherein the codebook is generated based on a specific parameter set, and wherein the specific parameter set is differently set/applied based on at least one of a rank value or at least one layer index of a specific rank.

公开(公告)号：US20210226682A1

公开(公告)日：2021-07-22

申请号：US17256125

申请日：2019-06-28

Applicant: LG ELECTRONICS INC.

Inventor： Haewook PARK ,  Jiwon KANG ,  Hyungtae KIM

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

Abstract: The present specification provides a method for reporting channel state information in a wireless communication system. More specifically, a method performed by a terminal comprises: calculating, on the basis of a first CSI-RS and a second CSI-RS received from a first base station and a second base station, a first parameter related to a channel state of a first resource and a second parameter related to a channel state of a second resource or a third parameter related to a channel state of a specific resource; and reporting the first parameter and the second parameter or the third parameter to the first base station and the second base station, wherein when the third parameter is calculated, the third parameter is calculated by using a codebook related to the specific resource. In addition, CSI-RS density, a CDM setting value, a power control offset value, and a QCL are independently configured for each of a first antenna port for transmitting the first CSI-RS and a second antenna port for transmitting the second CSI-RS.

公开(公告)号：US20210185706A1

公开(公告)日：2021-06-17

申请号：US16088793

申请日：2017-03-24

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun PARK ,  Kijun KIM ,  Byounghoon KIM ,  Haewook PARK ,  Hanbyul SEO ,  Suckchel YANG

IPC: H04W72/12 ,  H04L5/00 ,  H04J13/00 ,  H04L27/26

Abstract: Disclosed are a method for transmitting and receiving an uplink demodulation reference signal (DMRS) in a wireless communication system, and an apparatus therefore. Particularly, a method by which a terminal transmits a DMRS in a wireless communication system comprises the steps of: receiving, from a base station, downlink control information (DCI) for physical uplink shared channel (PUSCH) scheduling; generating a DMRS sequence for the PUSCH; and mapping the DMRS sequence to a physical resource, wherein the DMRS sequence can be mapped with the spacing of a predetermined resource element (RE) within the symbol to which the DMRS sequence is mapped.

公开(公告)号：US20210160718A1

公开(公告)日：2021-05-27

申请号：US16636564

申请日：2018-08-03

Applicant: LG Electronics Inc.

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

IPC: H04W24/10 ,  H04W72/08 ,  H04W28/08 ,  H04L5/00

Abstract: A method for measuring and reporting an interference by using a port-wise interference measurement resource in a wireless communication system according to an embodiment of the present disclosure may comprise the steps of: receiving a configuration associated with a port-wise interference measurement resource, wherein the port-wise interference measurement resource corresponds to an independent interference assumption for each port; and measuring an interference for each port in the port-wise interference measurement resource, and reporting a measurement result, wherein the measurement result includes an index of a port having a channel quality indicator (CQI) exceeding a target CQI.

公开(公告)号：US20210058126A1

公开(公告)日：2021-02-25

申请号：US17050426

申请日：2019-05-07

Applicant: LG ELECTRONICS INC.

Inventor： Haewook PARK ,  Jiwon KANG ,  Hyungtae KIM ,  Sukhyon YOON

IPC: H04B7/06 ,  H04L5/00

Abstract: A method for reporting channel state information (CSI) in a wireless communication system is disclosed. More specifically, the method performed by a user equipment (UE) includes receiving, from a base station, configuration information related to the channel state information, wherein the configuration information includes a number of a plurality of subbands allocated to the UE; measuring parameter values related to a channel state of one or more subbands of the plurality of subbands based on the configuration information; and reporting, to the base station, channel state information of the one or more subbands including the measured parameter values, wherein a number of the one or more subbands is determined based on a value of a rank indicator (RI).

公开(公告)号：US20210050889A1

公开(公告)日：2021-02-18

申请号：US16995283

申请日：2020-08-17

Applicant: LG ELECTRONICS INC.

Inventor： Haewook PARK ,  Jonghyun PARK

IPC: H04B7/0456 ,  H04W8/24 ,  H04W72/04 ,  H04B7/06 ,  H04L5/00

Abstract: A method of a UE transmitting a codebook based uplink signal in a wireless communication system, the method comprising: transmitting capability information about UE capability that maintains differences between phase values applied to antenna ports for uplink signal transmission; receiving configuration information for determining a codebook subset related to the uplink signal transmission based on the capability information; receiving DCI for determining a precoding matrix applied to the uplink signal transmission; determining a precoding matrix to be applied for the uplink signal transmission, based on the DCI, from the codebook subset determined based on the configuration information; and transmitting the uplink signal, based on the determined precoding matrix, wherein, based on that the differences between phase values are maintained at some antenna ports, the codebook subset includes at least one specific precoding matrix applying different phase values to the antenna ports included in some or all of some antennas.

公开(公告)号：US20200177261A1

公开(公告)日：2020-06-04

申请号：US16786348

申请日：2020-02-10

Applicant: LG Electronics Inc.

Inventor： Haewook PARK ,  Kijun KIM

IPC: H04B7/06 ,  H04L1/16 ,  H04L27/26 ,  H04W72/04 ,  H04W52/34 ,  H04B7/0456

Abstract: This specification provides a method of transmitting an uplink signal based on a codebook in a wireless communication system. More specifically, the method performed by a UE includes receiving, from a base station, downlink control information (DCI) including a first transmit precoding matrix indicator (TPMI), determining a codebook subset related to the transmission of the uplink signal based on the first TPMI, and transmitting, to the base station, the uplink signal based on the determined codebook subset. Accordingly, there is an advantage in that flexibility in the transmission antenna design of a UE can be increased because the degree of freedom of antenna port selection is increased.

公开(公告)号：US20200177256A1

公开(公告)日：2020-06-04

申请号：US16623384

申请日：2018-06-15

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04L5/00 ,  H04W16/28

Abstract: The present invention relates to a method and an apparatus for receiving a reference signal by a terminal in a wireless communication system. According to the present invention, from a base station, a terminal receives configuration information of a channel state information (CSI)-RS resource for transmission of a CSI-RS, and receives the CSI-RS on the basis of the configuration information. Further, provided may be a method and an apparatus, in which a terminal configures a beam on the basis of the CSI-RS, wherein the configuration information includes at least one of a first indicator indicating the number of times the CSI-RS is repeatedly transmitted, a first offset value of a first subcarrier to which the CSI-RS resource is mapped, and information indicating the maximum number of times the terminal can perform beam sweeping, and the CSI-RS resource is mapped to subcarriers at a predetermined interval on a frequency axis, and the CSI-RS can be repeatedly transmitted within a specific time interval according to the first indicator.