公开(公告)号：US09490950B2

公开(公告)日：2016-11-08

申请号：US15018429

申请日：2016-02-08

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04L25/02 ,  H04W72/04 ,  H04J11/00 ,  H04L27/26

CPC classification number: H04L5/0048 ,  H04J11/0069 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0023 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0091 ,  H04L25/0226 ,  H04L27/2601 ,  H04L27/2602 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2662 ,  H04W72/042 ,  H04W72/0446

Abstract: The present invention relates to a method for transmitting a data demodulation reference signal in a radio mobile communication system. The method comprises: a step for generating a sub-frame including the data demodulation reference signal, and a step for transmitting the generated sub-frame. The 1st and 2nd demodulation reference signal pattern groups include plural demodulation signal patterns orthogonal to each other, and are differentiated from each other with regard to time-frequency resources. In the data demodulation reference signal, demodulation reference signal patterns which are respectively orthogonal to each other M (M≦N) and N−M times are respectively included in the 1st and 2nd demodulation reference signal pattern groups if the rank is N.

Abstract translation: 本发明涉及在无线移动通信系统中发送数据解调参考信号的方法。 该方法包括：产生包括数据解调参考信号的子帧的步骤和用于发送所生成的子帧的步骤。 第一和第二解调参考信号模式组包括彼此正交的多个解调信号模式，并且相对于时间 - 频率资源彼此不同。 在数据解调参考信号中，如果秩为N，则分别彼此正交的M（M≤N）和N-M次的解调参考信号模式分别包括在第1和第2解调参考信号模式组中。

公开(公告)号：US09438326B2

公开(公告)日：2016-09-06

申请号：US14626055

申请日：2015-02-19

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/00 ,  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：US09401789B2

公开(公告)日：2016-07-26

申请号：US14339122

申请日：2014-07-23

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04B7/06 ,  H04L27/26 ,  H04B7/04

CPC classification number: H04L5/0048 ,  H04B7/0452 ,  H04B7/063 ,  H04B7/0671 ,  H04L5/0016 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/2613 ,  H04L27/2636

Abstract: The present invention relates to a wireless communication system, and more particularly, to a method and an apparatus for transmitting reference signals in uplink MIMO transmission. According to one embodiment of the present invention, the method for transmitting uplink signals through a terminal in the wireless communication system comprises the steps of: receiving control information including the information on a cyclic shift and/or an orthogonal cover code; allocating the multiplexed reference signals onto an uplink subframe; and transmitting the subframe through a multi-antenna. When the uplink MIMO transmission is multiuser MIMO transmission, the reference signals of the terminal and the reference signals of other terminals can be multiplexed by using the orthogonal cover code.

Abstract translation: 无线通信系统技术领域本发明涉及无线通信系统，更具体地，涉及用于在上行链路MIMO传输中发送参考信号的方法和装置。 根据本发明的一个实施例，用于在无线通信系统中通过终端发送上行链路信号的方法包括以下步骤：接收包括关于循环移位和/或正交覆盖码的信息的控制信息; 将多路复用的参考信号分配到上行链路子帧上; 并通过多天线发送子帧。 当上行MIMO传输是多用户MIMO传输时，可以通过使用正交覆盖码来复用终端的参考信号和其他终端的参考信号。

公开(公告)号：US09379865B2

公开(公告)日：2016-06-28

申请号：US14659018

申请日：2015-03-16

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0035 ,  H04L5/0048 ,  H04L25/0226 ,  H04L27/2613 ,  H04W72/042

Abstract: A method of generating reference signals by a base station in a wireless communication system is disclosed. The method including a sequence of a first reference signal using a cell identifier of the base station, transmitting, to a first user equipment (UE), a message including mode information indicating a first mode for a coordinated multi-point (CoMP) operation and a predetermined identifier being different from the cell identifier of the base station and generating a sequence of a second reference signal for the first UE using the predetermined identifier instead of the cell identifier of the base station.

Abstract translation: 公开了一种在无线通信系统中由基站产生参考信号的方法。 该方法包括使用基站的小区标识符的第一参考信号的序列，向第一用户设备（UE）发送包括指示协调多点（CoMP）操作的第一模式的模式信息的消息，以及 预定标识符不同于基站的小区标识符，并且使用预定标识符而不是基站的小区标识符生成用于第一UE的第二参考信号的序列。

公开(公告)号：US09356677B2

公开(公告)日：2016-05-31

申请号：US14789746

申请日：2015-07-01

Applicant: LG ELECTRONICS INC.

Inventor： Moon Il Lee ,  Bin Chul Ihm ,  Jin Young Chun

IPC: G06F11/00 ,  H04B7/06 ,  H04L1/00 ,  H04L1/06 ,  H04L1/18 ,  H04B7/04 ,  H04L27/26

CPC classification number: H04L1/1819 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/0639 ,  H04B7/0656 ,  H04B7/0697 ,  H04L1/0025 ,  H04L1/0625 ,  H04L1/1893 ,  H04L27/2601

Abstract: A method for correcting errors in a multiple antenna system based on a plurality of sub-carriers and a transmitting/receiving apparatus supporting the same are disclosed. The method includes determining a phase shift based precoding matrix phase shifted at a predetermined phase angle, initially transmitting each sub-carrier symbol to a receiver in a packet unit by using the phase shift based precoding matrix, reconstructing the phase shift based precoding matrix to reduce a spatial multiplexing rate if a negative reception acknowledgement (NACK) is received from the receiver, and retransmitting the initially transmitted sub-carrier symbol by using the reconstructed phase shift based precoding matrix or by changing the phase shift based precoding matrix using offset information fed back from the receiver or random offset information.

公开(公告)号：US09313001B2

公开(公告)日：2016-04-12

申请号：US14332505

申请日：2014-07-16

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04L5/0048 ,  H04B7/0413 ,  H04B7/0626 ,  H04B7/216 ,  H04J13/004 ,  H04L5/0016 ,  H04L5/0023 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/0094 ,  H04L25/0224 ,  H04L27/2601 ,  H04L27/2613 ,  H04W52/325 ,  H04W72/02 ,  H04W72/04 ,  H04W72/085

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.

Abstract translation: 用于发送用于最多八个天线端口的信道状态信息参考信号（CSI-RS）的方法包括将最多八个天线端口的CSI-RS映射到具有正常循环前缀（CP）的下行链路子帧的数据区域 ）配置; 以及发送CSI-RS所映射的下行链路子帧，其中，所述预定模式定义要映射到所述下行链路子帧中的所述数据区域的两个OFDM符号上的CSI-RS，并被映射到每一个中的四个子载波位置中的至少一个 两个OFDM符号，并且其中由预定模式定义的四个子载波位置可以是两个连续的子载波位置和两个其它连续的子载波位置，其间隔四个子载波。

公开(公告)号：US09191936B2

公开(公告)日：2015-11-17

申请号：US14604492

申请日：2015-01-23

Applicant: LG ELECTRONICS INC.

Inventor： Seung Hee Han ,  Sung Ho Moon ,  Jae Hoon Chung ,  Moon Il Lee ,  Hyun Woo Lee

IPC: H04W72/04 ,  H04L1/16 ,  H04L5/00 ,  H04L27/26 ,  H04B7/06 ,  H04L1/00

CPC classification number: H04W72/0413 ,  H04B7/068 ,  H04L1/0057 ,  H04L1/0073 ,  H04L1/1671 ,  H04L5/001 ,  H04L5/0026 ,  H04L5/0053 ,  H04L5/0055 ,  H04L27/2636 ,  H04L27/2697

Abstract: A method for transmitting a signal via physical uplink control channel (PUCCH) in a wireless communication system and an apparatus for performing the method are provided. Control information bits are modulated to generate N1 modulation symbols, wherein N1 is twice a number of subcarriers in one resource block (RB). The modulation symbols are spread by using various orthogonal codes to generate a plurality of sequences and the generated plurality of sequences are transmitted using different slots of a subframe through different antenna ports, each sequence of the plurality of sequences being mapped on a corresponding single carrier frequency division multiple access symbol in a corresponding slot.

Abstract translation: 提供了一种用于在无线通信系统中经由物理上行链路控制信道（PUCCH）发送信号的方法和用于执行该方法的装置。 控制信息比特被调制以产生N1个调制符号，其中N1是一个资源块（RB）中的子载波数量的两倍。 调制符号通过使用各种正交码进行扩展以产生多个序列，并且通过不同的天线端口发送使用不同时隙的子帧的生成的多个序列，多个序列的每个序列被映射到对应的单载波频率 在相应的时隙中分割多路访问符号。

公开(公告)号：US09154270B2

公开(公告)日：2015-10-06

申请号：US14684027

申请日：2015-04-10

Applicant: LG ELECTRONICS INC.

Inventor： Seung Hee Han ,  Moon Il Lee

IPC: H04W4/00 ,  H04L1/18 ,  H04L5/00

CPC classification number: H04L1/1893 ,  H04L1/0007 ,  H04L1/0083 ,  H04L1/1671 ,  H04L1/1812 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0055

Abstract: The present invention provides a method and apparatus for performing hybrid automatic repeat request (HARQ) in a wireless communication system. A terminal transmits a plurality of code words on a physical uplink shared channel (PUSCH) and receives a plurality of acknowledgement/non-acknowledgement (ACK/NACK) signals, which indicates if each of the plurality of code words has been received, on each physical hybrid-ARQ indicator channel (PHICH) corresponding to the respective code words. A downlink resource for which each of the PHICHs is mapped is determined based on the smallest physical resource block (PRB) index (IPRB—RAlowest—index) among PRBs mapped by the PUSCH and on an uplink demodulation reference signal (DMRS) circular shift parameter (nDMRS), and those downlink resources for which PHICHs are mapped respectively do not overlap each other.

Abstract translation: 本发明提供了一种用于在无线通信系统中执行混合自动重传请求（HARQ）的方法和装置。 一个终端在物理上行链路共享信道（PUSCH）上发送多个码字，并且在每一个上接收多个确认/非确认（ACK / NACK）信号，其指示是否已经接收到多个码字中的每一个 物理混合ARQ指示符信道（PHICH），对应于各个代码字。 基于由PUSCH映射的PRB之中的最小物理资源块（PRB）索引（IPRB-RA最低索引）和上行链路解调参考信号（DMRS）循环移位参数来确定映射了每个PHICH的下行链路资源 （nDMRS），分别映射PHICH的那些下行链路资源彼此不重叠。

公开(公告)号：US09094156B2

公开(公告)日：2015-07-28

申请号：US14626744

申请日：2015-02-19

Applicant: LG Electronics Inc.

Inventor： Seung Hee Han ,  Moon Il Lee ,  Yeong Hyeon Kwon ,  Hyun Soo Ko ,  Ja Ho Koo ,  Dong Cheol Kim ,  Jae Hoon Chung ,  Sung Ho Moon ,  Jin Sam Kwak ,  Min Seok Noh ,  Hyun Woo Lee

IPC: H04L27/00 ,  H04L5/00 ,  H04L27/26 ,  H04L1/00

CPC classification number: H04L5/0023 ,  H04B7/04 ,  H04B7/06 ,  H04B7/0639 ,  H04B7/0669 ,  H04J13/0062 ,  H04L1/0026 ,  H04L1/0057 ,  H04L1/0606 ,  H04L1/0668 ,  H04L1/1607 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0057 ,  H04L5/0091 ,  H04L27/2601 ,  H04L27/2602 ,  H04L27/2626 ,  H04L27/2627 ,  H04L27/34

Abstract: A method of transmitting, by a transmitter, information in a wireless communication system, the method includes generating first and second symbols; generating first and second transmit vectors on the basis of an Alamouti code from the first and second symbols; and transmitting the first transmit vector through a first antenna and transmitting the second transmit vector through a second antenna. The first transmit vector consists of a first transmit symbol and a second transmit symbol. The second transmit vector consists of a third transmit symbol and a fourth transmit symbol. The first, second, third, and fourth transmit symbols are transmitted based on first and second resource indexes. The first symbol is a first modulation symbol for first information, and the second symbol is a second modulation symbol for second information.

公开(公告)号：US20150173057A1

公开(公告)日：2015-06-18

申请号：US14619887

申请日：2015-02-11

Applicant: LG Electronics Inc.

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

IPC: H04W72/04 ,  H04L1/06 ,  H04L5/00

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.

Abstract translation: 一种数据传输方法包括确定层数，通过将用于第一码字的调制码元映射到第二码字的调制符号并通过多个天线发送映射符号来产生映射符号。 第一码字和第二码字中的至少一个映射到至少3层，层数大于3。