公开(公告)号：US10028265B2

公开(公告)日：2018-07-17

申请号：US15402887

申请日：2017-01-10

Applicant: LG ELECTRONICS INC.

Inventor： Min Seok Noh ,  Moon Il Lee ,  Jae Hoon Chung ,  Sung Ho Moon ,  Seung Hee Han

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

Abstract: A method for mapping, by a base station, a channel state information reference signal (CSI RS) in a wireless communication system, the method comprising: generating the CSI for eight antenna ports; selecting a resource element (RE) set from a plurality of RE sets in a subframe using an extended cyclic prefix (CP), wherein the selected RE set includes four pairs of REs in consecutive orthogonal frequency division multiplexing (OFDM) symbols, and wherein the four pairs of REs are separated from each other by constant subcarrier spacing in the consecutive OFDM symbols; and mapping the CSI RS for the eight antenna ports to the selected RE set.

公开(公告)号：US09992763B2

公开(公告)日：2018-06-05

申请号：US15222736

申请日：2016-07-28

Applicant: LG ELECTRONICS INC.

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

IPC: G06F11/00 ,  H04J1/16 ,  H04L1/00 ,  H04L12/26 ,  H04W72/02 ,  H04B7/06 ,  H04W52/14 ,  H04W52/36 ,  H04W72/04 ,  H04W52/34 ,  H04B7/0404 ,  H04W52/32 ,  H04W52/42 ,  H04W52/24

CPC classification number: H04W72/02 ,  H04B7/0404 ,  H04B7/0691 ,  H04W52/146 ,  H04W52/242 ,  H04W52/325 ,  H04W52/346 ,  H04W52/367 ,  H04W52/42 ,  H04W72/0413 ,  H04W72/0473

Abstract: A user equipment in wireless communication system is provided. The user equipment includes an antenna unit including a plurality of antennas, a control unit for grouping the plurality of antennas into a predetermined number of antenna groups and controlling separately transmission power of each of the predetermined number of antenna groups, and a transmitting unit, connected to the control unit, for transmitting at least one of data and control information to a base station via at least one of the predetermined number of antenna groups.

公开(公告)号：US09973310B2

公开(公告)日：2018-05-15

申请号：US15592479

申请日：2017-05-11

Applicant: LG ELECTRONICS INC.

Inventor： Min Seok Noh ,  Jae Hoon Chung ,  Yeong Hyeon Kwon ,  Seung Hee Han ,  Moon Il Lee

IPC: H04L29/06 ,  H04L5/00

CPC classification number: H04L5/0007 ,  H04L5/0048

Abstract: A method for transmitting an aperiodic sounding reference signal (SRS) to a base station by a user equipment (UE) in a wireless communication system, the method includes receiving, from the base station, an uplink grant or a downlink grant, with an indicator indicating a transmission of the aperiodic SRS; and transmitting, to the base station, the aperiodic SRS in a first uplink subframe; wherein the first uplink subframe is a subframe firstly configured after a second uplink subframe for the aperiodic SRS, wherein, if the uplink grant is received, the second uplink subframe is a subframe in which an uplink data signal scheduled by the uplink grant is transmitted, wherein, if the downlink grant is received, the second uplink subframe is a subframe in which an uplink control signal corresponding to the downlink grant is transmitted.

公开(公告)号：US09923676B2

公开(公告)日：2018-03-20

申请号：US15644225

申请日：2017-07-07

Applicant: LG Electronics Inc.

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

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

CPC classification number: H04L1/1893 ,  H04B7/04 ,  H04B7/0413 ,  H04L1/0041 ,  H04L1/06 ,  H04L1/0625 ,  H04L1/0631 ,  H04L5/0026 ,  H04L25/03343 ,  H04L25/03929 ,  H04L2025/03426 ,  H04W28/0268 ,  H04W72/046

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：US09838098B2

公开(公告)日：2017-12-05

申请号：US15222693

申请日：2016-07-28

Applicant: LG ELECTRONICS INC.

Inventor： Jae Hoon Chung ,  Hyun Soo Ko ,  Moon Il Lee ,  Yeong Hyeon Kwon

IPC: H04B7/216 ,  H04B7/04 ,  H04B7/06 ,  H04L1/00 ,  H04W40/24 ,  H04W72/04 ,  H04L5/00 ,  H04J13/00 ,  H04L27/26

CPC classification number: H04B7/0473 ,  H04B7/0678 ,  H04B7/0684 ,  H04J13/004 ,  H04L1/0027 ,  H04L5/0048 ,  H04L27/2627 ,  H04L27/2653 ,  H04W40/244 ,  H04W72/04 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/0453

Abstract: The present invention relates to a wireless communication system, and more specifically, to a method and an apparatus for transmitting an RS (Reference Signal) from a transmission end. The present invention relates to an RS transmission method and an apparatus therefore, comprising the steps of: confirming RS resources which are defined according to each layer; and transmitting the precoded RS for the layers to a receiving end through a multiple antenna, wherein the RS resource includes a 1st index for indicating an RS resource pattern group in which the precoded RS is mapped within a resource block and a 2nd index for indicating a code resource for multiplexing the precoded RSs within the RS resource pattern group.

公开(公告)号：US09806779B2

公开(公告)日：2017-10-31

申请号：US15133506

申请日：2016-04-20

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/04 ,  H04B7/0456 ,  H04B7/06 ,  H04L25/03 ,  H04L27/26 ,  H04W72/02 ,  H04W72/04 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04B7/0473 ,  H04B7/0456 ,  H04B7/0465 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0639 ,  H04B7/0669 ,  H04L25/03898 ,  H04L25/03949 ,  H04L27/2602 ,  H04L27/2633 ,  H04L27/2636 ,  H04W72/02 ,  H04W72/0446 ,  H04W88/02 ,  H04W88/08

Abstract: The present invention relates to a method for transmitting, by a base station, a downlink signal using a plurality of transmission antennas comprises the steps of: applying a precoding matrix indicated by the PMI, received from a terminal, in a codebook to a plurality of layers, and transmitting the precoded signal to the terminal through a plurality of transmission antennas. Among precoding matrices included in the codebook, a precoding matrix for even number transmission layers can be a 2×2 matrix containing four matrices (W1s), the matrix (W1) having rows of a number of transmission antennas and columns of half the number of transmission layers, the first and second columns of the first row in the 2×2 matrix being multiplied by 1, the first column of the second row being multiplied by coefficient “a” of a phase, and the first column of the second row being multiplied by “−a”.

公开(公告)号：US09775136B2

公开(公告)日：2017-09-26

申请号：US14481124

申请日：2014-09-09

Applicant: LG ELECTRONICS INC.

Inventor： Ki Hwan Kim ,  Jae Hoon Chung ,  Moon Il Lee

IPC: H04W72/04 ,  H04J1/02 ,  H04L5/00 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18

CPC classification number: H04W72/0406 ,  H04J1/02 ,  H04L1/0026 ,  H04L1/0075 ,  H04L1/1607 ,  H04L1/1861 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0053 ,  H04W72/04

Abstract: A method for multiplexing a data information stream, including a systematic symbol and a non-systematic symbol, and a control information stream of at least three types in a wireless mobile communication system is disclosed. The method includes mapping the data information stream to a resource area so that the systematic symbol is not mapped to a specific resource area to which the control information stream is mapped, and mapping the control information stream to the specific resource area.

公开(公告)号：US09722738B2

公开(公告)日：2017-08-01

申请号：US15264246

申请日：2016-09-13

Applicant: LG Electronics Inc.

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

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

CPC classification number: H04L1/1893 ,  H04B7/04 ,  H04B7/0413 ,  H04L1/0041 ,  H04L1/06 ,  H04L1/0625 ,  H04L1/0631 ,  H04L5/0026 ,  H04L25/03343 ,  H04L25/03929 ,  H04L2025/03426 ,  H04W28/0268 ,  H04W72/046

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：US09698953B2

公开(公告)日：2017-07-04

申请号：US14533809

申请日：2014-11-05

Applicant: LG ELECTRONICS INC.

Inventor： Seung Hee Han ,  Moon Il Lee

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0051 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0053 ,  H04W72/0413

Abstract: Provided are a method and an apparatus for signal transmission in a wireless communication system. The apparatus comprises: an information processor for generating a first information sequence based on a first transmission symbol and a first resource index, and a second information sequence based on a second transmission symbol and a second resource index; a reference signal generator for generating a different reference signal depending upon whether a first resource block indicated by the first resource index and a second resource block indicated by the second resource index are the same; and an antenna for transmitting a signal generated based on the first information sequence, the second information sequence, and the reference signal sequence.

公开(公告)号：US09572142B2

公开(公告)日：2017-02-14

申请号：US14686552

申请日：2015-04-14

Applicant: LG ELECTRONICS INC.

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

IPC: G01R31/08 ,  H04W72/04 ,  H04L1/16 ,  H04L1/18 ,  H04B7/04 ,  H04L5/00 ,  H04L5/14 ,  H04B7/06 ,  H04W88/08

CPC classification number: H04W72/0413 ,  H04B7/0404 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/0626 ,  H04B7/068 ,  H04L1/1607 ,  H04L1/1812 ,  H04L1/1893 ,  H04L1/1896 ,  H04L5/0023 ,  H04L5/005 ,  H04L5/0055 ,  H04L5/0057 ,  H04L5/0092 ,  H04L5/14 ,  H04L5/1469 ,  H04W52/54 ,  H04W72/042 ,  H04W88/08

Abstract: The present invention relates to a wireless communication system and provides an efficient control information transmission method and apparatus for supporting a multiple antenna transmission technique. A method is provided for transmitting downlink hybrid automatic repeat request (HARQ) information related to an uplink multiple codeword transmission and includes receiving the uplink multiple codeword transmission, generating HARQ information related to each of the multiple codewords based on a result of decoding each of the multiple codewords, modulating the HARQ information, and transmitting the modulated HARQ information via one or more physical HARQ indicator channels (PHICHs).

Abstract translation: 无线通信系统技术领域本发明涉及一种无线通信系统，并且提供了一种用于支持多天线传输技术的有效的控制信息传输方法和装置。 提供了一种用于发送与上行链路多码字传输相关的下行链路混合自动重传请求（HARQ）信息的方法，包括接收所述上行链路多码字传输，基于所述多个码字中的每一个的解码结果生成与所述多个码字中的每一个相关的HARQ信息 多个码字，调制HARQ信息，以及经由一个或多个物理HARQ指示符信道（PHICH）发送经调制的HARQ信息。