公开(公告)号：US11259302B2

公开(公告)日：2022-02-22

申请号：US16202240

申请日：2018-11-28

Applicant: LG Electronics Inc.

Inventor： Jae Hoon Chung ,  So Yeon Kim ,  Sungho Moon ,  Seunghee Han ,  Yeong Hyeon Kwon

IPC: H04W72/04 ,  H04J11/00 ,  H04L1/00 ,  H04L5/00 ,  H04W72/14 ,  H04W72/12 ,  H04W88/08

Abstract: Embodiments of the present invention are directed to a method and apparatus for transmitting and receiving a control signal (for example, PDCCH signal) in an asymmetric multicarrier environment. The method for transmitting a control signal for an asymmetric multicarrier in a wireless connection system according to one embodiment of the present invention comprises: determining the size of a carrier indicator field (CIF) indicating a downlink component carrier (DL CC) by which downlink data is transmitted, on the basis of a maximum value of the number of DL CCs and of the number of uplink component carriers (UL CCs) being managed in a base station; transmitting the CIF on a 1st DL CC to a terminal through a physical downlink control channel (PDCCH); and transmitting downlink data on a 2nd DL CC indicated by the CIF to the terminal through a physical downlink shared channel (PDSCH).

公开(公告)号：US11218194B2

公开(公告)日：2022-01-04

申请号：US16774993

申请日：2020-01-28

Applicant: LG ELECTRONICS INC.

Inventor： Hyun Soo Ko ,  Seung Hee Han ,  Ja Ho Koo ,  Jae Hoon Chung ,  Bin Chul Ihm ,  Moon Il Lee

IPC: H04W4/00 ,  H04B7/0413 ,  H04B7/06 ,  H04L5/00 ,  H04L27/26 ,  H04L25/02 ,  H04L25/03

Abstract: A method for transmitting a reference signal in a multi-antenna system is provided. The method includes: selecting at least one orthogonal frequency division multiplexing (OFDM) symbol in a subframe containing a plurality of OFDM symbols; allocating a channel quality indication reference signal (CQI RS) capable of measuring a channel state for each of a plurality of antennas to the selected at least one OFDM symbol; and transmitting the CQI RS, wherein the CQI RS is allocated to an OFDM symbol which does not overlap with an OFDM symbol to which a common reference signal to be transmitted to all user equipments in a cell or a dedicated reference signal to be transmitted to a specific user equipment in the cell is allocated.

公开(公告)号：US11057840B2

公开(公告)日：2021-07-06

申请号：US16506700

申请日：2019-07-09

Applicant: LG ELECTRONICS INC.

Inventor： Jae Hoon Chung ,  So Yeon Kim ,  Jong Min Kim ,  Doo Hyun Sung

IPC: H04L1/00 ,  H04W52/22 ,  H03M13/09 ,  H03M13/00 ,  H04L5/00 ,  H04L27/26 ,  H04W52/58 ,  H04W72/04 ,  H04W72/12

Abstract: A method for detecting control information in a wireless communication system is provided. The method includes checking a cyclic redundancy check (CRC) error by monitoring control channels, determining whether a value of an error check field is equal to a specific value, and, if the value of the error check field is equal to a specific value, detecting the control information on the control channel.

公开(公告)号：US10932233B2

公开(公告)日：2021-02-23

申请号：US15952503

申请日：2018-04-13

Applicant: LG ELECTRONICS INC.

Inventor： So Yeon Kim ,  Sung Ho Moon ,  Jae Hoon Chung ,  Yeong Hyeon Kwon ,  Han Gyu Cho

IPC: H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04W24/08 ,  H04W88/02

Abstract: A method for monitoring a downlink control channel, the method performed by a user equipment (UE) configured with multiple carriers includes determining whether to monitor the downlink control channel within either one UE-specific search space or a plurality of UE-specific search spaces, and monitoring the downlink control channel within the plurality of UE-specific search spaces if carrier index is configured, wherein each of the plurality of the UE-specific search spaces is determined based on the carrier index.

公开(公告)号：USRE48442E1

公开(公告)日：2021-02-16

申请号：US16362201

申请日：2019-03-22

Applicant: LG Electronics Inc.

Inventor： Jae Hoon Chung ,  Hyun Soo Ko ,  Seung Hee Han ,  Moon Il Lee

IPC: H04L1/06 ,  H04L1/18 ,  H04L5/00 ,  H04B7/04 ,  H04B7/0413 ,  H04W72/04 ,  H04L25/03 ,  H04W28/02 ,  H04L1/00 ,  H04B7/0456

Abstract: A method of data transmission includes determining the number of layers, generating mapping symbols by mapping modulation symbols for a first codeword and modulation symbols for a second codeword to each layer, and transmitting the mapping symbols through a plurality of antennas. At least one of the first codeword and the second codeword is mapped to at least 3 layers and the number of layers is larger than 3.

公开(公告)号：US10887205B2

公开(公告)日：2021-01-05

申请号：US16388467

申请日：2019-04-18

Applicant: LG ELECTRONICS INC.

Inventor： Jae Hoon Chung ,  Hyun Soo Ko ,  Moon Il Lee ,  Bin Chul Ihm

IPC: H04L12/26 ,  H04B17/345 ,  H04B17/373 ,  H04L5/00

Abstract: A method of measuring interference to perform efficient data communication is disclosed. A method of measuring interference of neighboring cells comprises allocating one or more first resource elements, to which pilot signals are allocated, to predetermined symbol regions included in a first resource block; allocating one or more second resource elements for measuring interference of the neighboring cells to a first symbol region of the predetermined symbol regions; and measuring interference of the neighboring cells using the one or more second resource elements.

公开(公告)号：USRE48016E1

公开(公告)日：2020-05-26

申请号：US15995709

申请日：2018-06-01

Applicant: LG ELECTRONICS INC.

Inventor： Hyun Soo Ko ,  Seung Hee Han ,  Jae Hoon Chung ,  Bin Chul Ihm ,  Moon Il Lee

IPC: H04B7/216 ,  H04B7/06 ,  H04B7/04 ,  H04J13/00 ,  H04W72/04 ,  H04W4/00 ,  H04W72/08 ,  H04W52/32 ,  H04W72/02 ,  H04L5/00 ,  H04L25/02 ,  H04L27/26 ,  H04B7/0413

Abstract: A method for transmitting a channel status information reference signals (CSI-RSs) for a maximum of eight antenna ports includes mapping the CSI-RSs for a maximum of eight antenna ports onto a data region of a downlink subframe having a normal cyclic prefix (CP) configuration according to a predetermined pattern; and transmitting the downlink subframe to which the CSI-RSs mapped, wherein the predetermined pattern defines the CSI-RSs to be mapped onto two OFDM symbols of the data region in the downlink subframe and mapped to at least one of four subcarrier positions in each of the two OFDM symbols, and wherein the four subcarrier positions defined by the predetermined pattern may be two consecutive subcarrier positions and two other consecutive subcarrier positions spaced apart by four subcarriers.

公开(公告)号：US10432377B2

公开(公告)日：2019-10-01

申请号：US15660633

申请日：2017-07-26

Applicant: LG Electronics Inc.

Inventor： Moon Il Lee ,  Jae Hoon Chung ,  Hyun Soo Ko ,  Seung Hee Han

IPC: H04L5/00 ,  H04L27/26 ,  H04L25/02 ,  H04J13/16 ,  H04J13/00 ,  H04J13/18 ,  H04W72/04 ,  H04J11/00 ,  H04B7/0413 ,  H04W88/06

Abstract: The present invention relates to a method and apparatus which transmit/receive at least one demodulation reference signal by using a CDM group and/or a transmission rank of a user device that have been used to transmit the at least one demodulation reference signal for the user device, an OCC that has been used to spread the demodulation reference signal, etc. Also, the present invention relates to a method and apparatus which change an antenna port for transmitting the demodulation reference signal by using NDI for a disabled transmission block.

公开(公告)号：US10320637B2

公开(公告)日：2019-06-11

申请号：US15605577

申请日：2017-05-25

Applicant: LG ELECTRONICS INC.

Inventor： Jae Hoon Chung ,  Hyun Soo Ko ,  Moon Il Lee ,  Bin Chul Ihm

IPC: H04L12/26 ,  H04B17/345 ,  H04L5/00 ,  H04B17/373

Abstract: A method of measuring interference to perform efficient data communication is disclosed. A method of measuring interference of neighboring cells comprises allocating one or more first resource elements, to which pilot signals are allocated, to predetermined symbol regions included in a first resource block; allocating one or more second resource elements for measuring interference of the neighboring cells to a first symbol region of the predetermined symbol regions; and measuring interference of the neighboring cells using the one or more second resource elements.

公开(公告)号：US10313092B2

公开(公告)日：2019-06-04

申请号：US15203560

申请日：2016-07-06

Applicant: LG Electronics Inc.

Inventor： Byoung Hoon Kim ,  Yeong Hyeon Kwon ,  Han Byul Seo ,  Jae Hoon Chung ,  Young Woo Yun ,  Dae Won Lee

IPC: H04L5/14 ,  H04B7/155 ,  H04J3/00 ,  H04W72/04

Abstract: A method and wireless station for receiving signals. The wireless station receives, from a base station, a control signal on a first subframe indicated as a downlink (DL) subframe by a time division duplex (TDD) uplink-downlink (UL-DL) subframe configuration. The control signal includes first information indicating that at least one UL subframe indicated by the TDD UL-DL subframe configuration is reconfigured as a TDD DL subframe. The wireless station receives, from the base station, DL data on a second subframe which was indicated as a TDD UL subframe by the TDD UL-DL subframe configuration but is currently reconfigured as a TDD DL subframe by the control signal. The wireless station transmits, to the base station, UL data on a TDD UL subframe except for being reconfigured as the TDD DL subframe by the control signal.