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.

公开(公告)号：US20200177252A1

公开(公告)日：2020-06-04

申请号：US16065057

申请日：2018-01-08

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04W24/08 ,  H04L27/18

Abstract: Disclosed herein is a method for reporting channel state information (CSI) of a terminal in a wireless communication system. The method includes: measuring a CSI-RS (reference signal) transmitted from a base station through multiple panels; and reporting CSI generated based on the CSI-RS measurement to the base station, wherein, when the terminal reports a WB (Wideband) panel corrector and SB (Subband) panel corrector for the multiple panels as the CSI, the WB panel corrector and the SB panel corrector are reported with different bit widths.

公开(公告)号：US20200169303A1

公开(公告)日：2020-05-28

申请号：US16688324

申请日：2019-11-19

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun PARK ,  Kijun KIM ,  Haewook PARK

IPC: H04B7/0417 ,  H04L5/00 ,  H04W72/04 ,  H04B7/06 ,  H04B7/04 ,  H04B7/0456 ,  H04L25/02 ,  H04W72/00 ,  H04L25/00

Abstract: According to the present specification, a method for reporting channel state information (CSI) in a wireless communication system, which is performed by a UE includes: transmitting to a base station UE capability information including control information indicating a codebook configuration supported by the UE with respect to a specific class related with the CSI reporting. Therefore, there is an effect that implementation complexity of the UE can be reduced.

公开(公告)号：US20200153496A1

公开(公告)日：2020-05-14

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：US20200053671A1

公开(公告)日：2020-02-13

申请号：US16065737

申请日：2018-06-07

Applicant: LG Electronics Inc.

Inventor： Youngsub KIM ,  Hyunsoo KO ,  Kijun KIM ,  Sukhyon YOON ,  Eunsun KIM ,  Haewook PARK

IPC: H04W56/00 ,  H04L5/00 ,  H04W72/04

Abstract: The present disclosure provides a method for receiving a synchronization signal block by a UE in a wireless communication system. Particularly, the method includes receiving at least one SSB mapped to a plurality of symbols, wherein two regions for candidate SSBs in which the at least one SSB can be received are allocated in a specific time duration including the plurality of symbols, and a time between the two regions, a time before the two regions and a time after the two regions are identical in the specific time duration.

公开(公告)号：US20200021413A1

公开(公告)日：2020-01-16

申请号：US16483020

申请日：2018-02-01

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04J13/18 ,  H04W72/04

Abstract: Disclosed are a method for transmitting and receiving a channel state information reference signal in a wireless communication system and a device therefor. Specifically, a method for transmitting, by a base station, a channel state information-reference signal (CSI-RS) in a wireless communication system includes: transmitting configuration information of the CSI-RS to user equipment (UE); and transmitting, to the UE, the CSI-RS through one or more antenna ports, in which the position of an orthogonal frequency division multiplexing (OFDM) symbol for transmitting the CSI-RS may be configured by the configuration information, and the position of a resource element (RE) for transmitting the CSI-RS may be determined by M RE units (M is 1 and/or 2 and/or 4 and/or 8).

公开(公告)号：US20190393940A1

公开(公告)日：2019-12-26

申请号：US16562068

申请日：2019-09-05

Applicant: LG ELECTRONICS INC.

Inventor： Haewook PARK ,  Kijun Kim ,  Jonghyun Park

IPC: H04B7/0456 ,  H04B7/06

Abstract: Disclosed are a codebook-based signal transmission and reception method in a multi-antenna wireless communication system and an apparatus therefor. Specifically, a method for transmitting or receiving a signal on the basis of a codebook by a terminal in a 2-dimensional multi-antenna wireless communication system comprises the steps of: receiving a channel state information reference signal (CSI-RS) through a multi-antenna port from a base station; and reporting channel state information to the base station, wherein the channel state information may include a precoding matrix indicator (PMI) for indicating a precoding matrix, the PMI may include a first PMI for selecting a set of precoding matrixes from the codebook and a second PMI for selecting one precoding matrix from the set of precoding matrixes.

公开(公告)号：US20190312696A1

公开(公告)日：2019-10-10

申请号：US16090150

申请日：2017-03-31

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04W76/27 ,  H04W72/12 ,  H04B7/06

Abstract: Disclosed is a method by which a terminal reports channel status information (CSI) to a base station in a wireless communication system, so as to perform a demodulation reference signal (DM-RS)-based downlink transmission through a multi-layer. Particularly, the method comprises the steps of: receiving a channel status information-reference signal (CSI-RS) from the base station; calculating the CSI on the basis of the CSI-RS, on the assumption that a dual pre-coder composed of a first pre-coder and a second pre-coder is applied; and reporting the calculated CSI to the base station, wherein column vectors of the second pre-coder are composed of a single discrete Fourier transform (DFT) vector.

公开(公告)号：US20190253118A1

公开(公告)日：2019-08-15

申请号：US15779372

申请日：2016-11-25

Applicant: LG ELECTRONICS INC.

Inventor： Haewook PARK ,  Inkwon SEO ,  Hyungtae KIM ,  Myoungseob KIM

IPC: H04B7/06 ,  H04B7/024

Abstract: A method for multiuser superposition transmission (MUST) in a wireless communication system, and a device therefor are disclosed. Particularly, a method by which a first base station (eNodeB (eNB)) performs MUST involving joint transmission in a wireless communication system can comprise the steps of: receiving, from a MUST-paired near user equipment (UE), first channel state information (CSI) for the first eNB participating in the joint transmission; setting a parameter required to perform the MUST involving the joint transmission for the MUST-paired UE, on the basis of the first CSI and the second CSI for a second eNB participating in the joint transmission; and transmitting the parameter to the MUST-paired UE and the second eNB.