公开(公告)号：US20200036419A1

公开(公告)日：2020-01-30

申请号：US16593307

申请日：2019-10-04

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae KIM ,  Hanjun PARK

IPC: H04B7/0456 ,  H04L1/00 ,  H04B17/382 ,  H04B7/06 ,  H04L5/00 ,  H04B7/0417 ,  H04W72/04 ,  H04W72/06

Abstract: A method for receiving Channel State Information (CSI) by a base station (BS) in a wireless communication system, includes receiving an encoded value for a specific CSI report mode, wherein the encoded value is joint encoded value of a rank indicator (RI) and a first precoding matrix indicator (PMI), obtaining the RI and a codebook index for the first PMI based on the encoded value, wherein the RI and the first PMI are jointly encoded into the encoded value in a way that following conditions are satisfied: when the encoded value is an integer ranging from 0 to 7, the RI is 1 and a codebook index for the first PMI is same as the encoded value, and when the encoded value is integer ranging from 8 to 15, the RI is 2 and the codebook index for the first PMI is the encoded value minus 8.

公开(公告)号：US20190393942A1

公开(公告)日：2019-12-26

申请号：US16564906

申请日：2019-09-09

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae KIM ,  Hanjun PARK

IPC: H04B7/0456 ,  H04B17/382 ,  H04B7/06 ,  H04L5/00 ,  H04B7/0417 ,  H04W72/04 ,  H04W72/06

Abstract: A method for receiving channel state information (CSI) by a base station, includes transmitting configuration information indicating whether to use a 4 antenna ports codebook, wherein a first codebook index for a first precoding matrix indicator (PMI) and a second codebook index for a second PMI for a specific CSI report mode with 4 antenna ports are determined when the UE is configured to use the 4 antenna ports codebook; and receiving the CSI indicating the first codebook index and the second codebook index, wherein a value of the first codebook index is determined as follows: when a rank indicator (RI) is 1, the value of the first codebook index is determined based on a value of the first PMI multiplied by 4, and when the RI is 2, the value of the first codebook index is determined based on the value of the first PMI multiplied by 4.

公开(公告)号：US20190357062A1

公开(公告)日：2019-11-21

申请号：US16527426

申请日：2019-07-31

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae KIM ,  Hanbyul SEO

IPC: H04W24/02 ,  H04L5/00 ,  H04B7/024 ,  H04B7/06

Abstract: A method of reporting channel state information (CSI) by a user equipment (UE) in a wireless communication system, includes receiving, from a base station (BS), first information on a set of CSI-reference signal resource element (CSI-RS RE) configurations and second information on a time resource configuration; obtaining CSI based on the first and the second information; and reporting, to the BS, the CSI, wherein the time resource configuration includes a CSI-RS periodicity commonly used for the CSI-RS RE configurations in the set.

公开(公告)号：US20190312614A1

公开(公告)日：2019-10-10

申请号：US16312978

申请日：2017-07-11

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae KIM ,  Jonghyun PARK ,  Haewook PARK

IPC: H04B7/0417 ,  H04B7/06 ,  H04W72/04 ,  H04W72/14

Abstract: Disclosed is a method for a terminal reporting aperiodic channel status information (CSI) to a base station in a wireless communication system. The method comprises the steps of: receiving, from a base station via downlink control information (DCI), a CSI report triggering message of at least one CSI process, among multiple CSI processes, that is connected with one enhanced multiple input multiple output (eMIMO) type among a first eMIMO type and a second eMIMO type; and updating an aperiodic CSI associated with the at least one CSI process and reporting same to the base station based on a reference signal corresponding to the one eMIMO type.

公开(公告)号：US20190273648A1

公开(公告)日：2019-09-05

申请号：US16339893

申请日：2017-09-29

Applicant: LG ELECTRONICS INC.

Inventor： Inkwon SEO ,  Hyungtae KIM

IPC: H04L27/36 ,  H04W72/12

Abstract: The method, according to one embodiment of the present invention, by which in a wireless communication system a base station transmits signals to a plurality of terminals on the basis of non-orthogonal multiple access (NOMA), comprises the steps of: mapping first information bits for a first terminal and second information bits for a second terminal onto a first layer for the NOMA; modulating the first information bits and the second information bits which have been mapped on the first layer; and transmitting modulation symbols, which have been generated as a result of the modulation, to the first terminal and the second terminal, wherein the base station may map the first information bits and the second information bits onto the first layer, at a bit level before the modulation symbols have been generated.

公开(公告)号：US20190260434A1

公开(公告)日：2019-08-22

申请号：US16064924

申请日：2017-05-11

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/0456 ,  H04B7/06

Abstract: Disclosed are a method for transmitting and receiving channel state information in a multi-antenna wireless communication system, and an apparatus therefor. Particularly, a method by which user equipment (UE) reports channel state information in a two-dimensional multi-antenna wireless communication system comprises the steps of: receiving, from a base station, a channel state information reference signal (CSI-RS) through a multi-antenna port; and reporting the channel state information to the base station, wherein a plurality of codewords, which are used for generating a pre-coding matrix selected by the UE in a codebook for reporting the channel state information, are specified by the channel state information and, after power coefficients are applied to each of the plurality of codewords, the pre-coding matrix can be generated based on a linear combination of the plurality of codewords to which the power coefficients are applied.

公开(公告)号：US20190181934A1

公开(公告)日：2019-06-13

申请号：US16279544

申请日：2019-02-19

Applicant: LG Electronics Inc.

Inventor： Jiwon KANG ,  Hanbyul SEO ,  Kijun KIM ,  Hyungtae KIM ,  Youngtae KIM ,  Kilbom LEE

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

Abstract: Disclosed in the present application is a method for transmitting, by a terminal, an uplink signal to a base station through a plurality of antenna ports in a wireless communication system. Specifically, the method comprises the steps of: transmitting, to the base station, uplink reference signals corresponding to the plurality of antenna ports and antenna port grouping information: receiving, from the base station, information on an uplink precoder, which is determined on the basis of the uplink reference signals and the antenna port group information; precoding the uplink signal using the information on the uplink precoder; and transmitting the precoded uplink signal to the base station, wherein the antenna port grouping information comprises information on antenna port groups comprising the plurality of antenna ports and information of the signal distortion level between the antenna port groups.

公开(公告)号：US20190116009A1

公开(公告)日：2019-04-18

申请号：US16065383

申请日：2018-03-06

Applicant: LG Electronics Inc.

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

IPC: H04L5/00 ,  H04B7/06 ,  H04B7/0408 ,  H04W72/04 ,  H04W24/10 ,  H04B17/336

Abstract: According to one embodiment of the present invention, a method of decoding, by a user equipment, a downlink signal in a wireless communication system comprises the steps of: receiving a semi-persistent zero power-channel state information reference signal (SP ZP CSI-RS) resource configuration from a base station; and decoding a downlink signal according to the SP ZP CSI-RS resource configuration. The SP ZP CSI-RS resource configuration includes a plurality of SP ZP CSI-RS resources and information on whether or not each of a plurality of the SP ZP CSI-RS resources is used can be indicated or configured by the base station.

公开(公告)号：US20190081677A1

公开(公告)日：2019-03-14

申请号：US16082919

申请日：2017-03-06

Applicant: LG ELECTRONICS INC.

Inventor： Kijun KIM ,  Hyungtae KIM ,  Jonghyun PARK

IPC: H04B7/06 ,  H04L5/00

Abstract: Disclosed are a method for transmitting and receiving channel state information between a base station and a terminal and an apparatus for supporting the same. Specifically, disclosed is a method for reporting channel state information of a specific terminal in order to determine an optimal antenna port setting (number, index, etc.) for transmitting, by a base station, a data signal to the terminal. More particularly, disclosed are a method for reporting, by a terminal, channel state information on different antenna port settings (number, index, etc.) to a base station and an apparatus for supporting the same.

公开(公告)号：US20190007106A1

公开(公告)日：2019-01-03

申请号：US16065085

申请日：2017-09-26

Applicant: LG ELECTRONICS INC.

Inventor： Haewook PARK ,  Hyungtae KIM ,  Jonghyun PARK

IPC: H04B7/0417 ,  H04B7/0456 ,  H04B7/06

Abstract: Disclosed are a method for transmitting/receiving channel state information in a wireless communication system and an apparatus for the same. Particularly, a method for reporting channel state information (CSI) by a user equipment (UE) in a wireless communication system may comprise the steps of: receiving channel state information reference signal (CSI-RS) from a base station through a multi-antenna port; and reporting CSI to the base station, wherein the CSI includes selection information indicating multiple codewords used to generate a precoding matrix within a codebook for reporting the CSI, a power coefficient and a phase coefficient are applied to each of the multiple codewords and the precoding matrix is then generated on the basis of a linear combination of the multiple codewords to each of which the power and phase coefficients are applied, and the selection information and information indicating the power coefficient are transmitted at different CSI reporting instances.