公开(公告)号：US20150319739A1

公开(公告)日：2015-11-05

申请号：US14798916

申请日：2015-07-14

Applicant: LG ELECTRONICS INC.

Inventor： Hyun Soo KO ,  Moon Il LEE ,  Ja Ho KOO ,  Jae Hoon CHUNG ,  Bin Chul IHM

IPC: H04W72/04 ,  H04B7/04

CPC classification number: H04W72/042 ,  H04B7/04 ,  H04B7/0413 ,  H04W88/02 ,  H04W88/08

Abstract: A method and apparatus for transmitting a downlink signal in a multiple input multiple output (MIMO) wireless communication system is disclosed. A method for receiving a downlink signal from a base station to a user equipment in a multiple input multiple output (MIMO) system, which supports dual layer transmission based on first and second antenna ports, comprises receiving downlink control information (DCI) through a downlink control channel; and receiving downlink data through a downlink data channel, the downlink data including one or more of a first transport block and a second transport block, wherein the downlink control information includes a new data indicator (NDI) for each of the first and second transport blocks, and if the first transport block is disabled and the second transport block is enabled, the new data indicator for the first transport block indicates an antenna port through which the second transport block is received.

Abstract translation: 公开了一种用于在多输入多输出（MIMO）无线通信系统中发送下行链路信号的方法和装置。 一种用于在支持基于第一和第二天线端口的双层传输的多输入多输出（MIMO）系统中从基站向用户设备接收下行链路信号的方法包括通过下行链路接收下行链路控制信息（DCI） 控制通道; 并且通过下行链路数据信道接收下行链路数据，所述下行链路数据包括第一传输块和第二传输块中的一个或多个，其中所述下行链路控制信息包括用于所述第一和第二传输块中的每一个的新数据指示符（NDI） ，并且如果第一传输块被禁用并且第二传输块被使能，则用于第一传输块的新数据指示符指示接收第二传输块的天线端口。

公开(公告)号：US20150304012A1

公开(公告)日：2015-10-22

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: H04B7/06 ,  H04B7/04

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：US20150162964A1

公开(公告)日：2015-06-11

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: H04B7/04 ,  H04J13/00 ,  H04L5/00 ,  H04B7/06 ,  H04L27/26 ,  H04W72/04

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.

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，更具体地，涉及一种从发送端发送RS（参考信号）的方法和装置。 本发明涉及一种RS传输方法及其装置，其特征在于包括以下步骤：确认根据各层定义的RS资源; 以及通过多个天线将所述层的预编码RS发送到接收端，其中所述RS资源包括用于指示其中所述预编码RS映射在资源块内的RS资源模式组的第一索引，以及用于指示 用于复用RS资源模式组内的预编码RS的代码资源。

公开(公告)号：US20150156779A1

公开(公告)日：2015-06-04

申请号：US14575507

申请日：2014-12-18

Applicant: LG ELECTRONICS INC.

Inventor： Moon Il LEE ,  Jae Hoon CHUNG ,  Hyun Soo KO ,  Bin Chul IHM

IPC: H04W72/04 ,  H04W52/14

CPC classification number: H04W72/0473 ,  H04L5/0048 ,  H04W52/143 ,  H04W52/16 ,  H04W52/42

Abstract: A ratio of data transmission power of a layer per RE to RS transmission power of the layer per RE is predefined according to rank. A BS determines downlink transmission power for a PDSCH according to the predefined rank and a UE assumes that the PDSCH and UE-specific RS(s) for the PDSCH is transmitted with power satisfying the ratio.

Abstract translation: 每RE的层的数据传输功率与每RE的层的RS传输功率的比率根据等级被预先定义。 BS根据预定义的秩确定PDSCH的下行链路发送功率，并且UE假定用于PDSCH的PDSCH和UE特定的RS以一定比例的功率发送。

公开(公告)号：US20150156000A1

公开(公告)日：2015-06-04

申请号：US14548212

申请日：2014-11-19

Applicant: LG ELECTRONICS INC.

Inventor： Hyun Soo KO ,  Jae Hoon CHUNG ,  Moon Il LEE

IPC: H04L5/00 ,  H04B7/04

CPC classification number: H04L5/0057 ,  H04B7/0486 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/065 ,  H04L5/001 ,  H04W88/02 ,  H04W88/08

Abstract: The present invention relates to a method for transmitting channel status information comprising: transmitting a rank indicator (RI) and a precoding type indicator (PTI) based on a first reporting period, transmitting during the first reporting period a broadband first precoding matrix indicator (PMI) based on a second reporting period, and transmitting at least once during the second reporting period a broadband second PMI and a broadband CQI, when the PTI has a first value; transmitting the RI and the PTI based on the first reporting period, transmitting during the first reporting period the broadband second PMI and the broadband CQI based on a third reporting period; and transmitting at least once during the third period a subband second PMI and a subband CQI, when the PTI has a second value, wherein the subband CQI on an entire cycle of a set bandwidth portion can be transmitted at least once.

Abstract translation: 本发明涉及一种用于发送信道状态信息的方法，包括：基于第一报告周期发送秩指示符（RI）和预编码类型指示符（PTI），在第一报告周期期间发送宽带第一预编码矩阵指示符（PMI ），并且当所述PTI具有第一值时，在所述第二报告周期期间至少发送一次宽带第二PMI和宽带CQI; 基于第一报告周期发送RI和PTI，在第一报告周期期间，基于第三报告周期在宽带第二PMI和宽带CQI中进行发送; 以及当所述PTI具有第二值时，在所述第三时段期间至少发送一次，其中，所述PTI具有第二值，其中，可以至少传送设定带宽部分的整个周期上的子带CQI。

公开(公告)号：US20150146663A1

公开(公告)日：2015-05-28

申请号：US14607774

申请日：2015-01-28

Applicant: LG ELECTRONICS INC.

Inventor： Moon Il LEE ,  Jae Hoon CHUNG ,  Hyun Soo KO ,  Bin Chul IHM ,  Yeong Hyeon KWON

IPC: H04W52/14 ,  H04W72/04

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.

Abstract translation: 提供无线通信系统中的用户设备。 用户设备包括：天线单元，包括多个天线;控制单元，用于将多个天线分组成预定数量的天线组，并分别控制每个预定数量的天线组的发射功率;以及发射单元，连接 到控制单元，用于经由预定数量的天线组中的至少一个将数据和控制信息中的至少一个发送到基站。

公开(公告)号：US20150139154A1

公开(公告)日：2015-05-21

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

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：US20150078345A1

公开(公告)日：2015-03-19

申请号：US14543804

申请日：2014-11-17

Applicant: LG Electronics Inc.

Inventor： Hyun Soo KO ,  Bin Chul IHM ,  Moon Il LEE ,  Jae Hoon CHUNG ,  Seung Hee HAN

IPC: H04B7/06 ,  H04W72/04

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 reference signals for eight or fewer antenna ports includes mapping a portion of common reference signals (CRSs) for four or fewer antenna ports into a downlink subframe including 1st slot and 2nd slot with a normal cyclic prefix configuration; mapping channel status information reference signals (CSI-RSs) for eight or fewer antenna ports into the downlink subframe according to a preset pattern; and transmitting the downlink subframe into which the CRSs and the CSI-RSs are mapped, wherein the preset pattern defines the CSI-RSs for eight or fewer antenna ports to be mapped onto two OFDM symbols of the data region in the downlink subframe, with the two OFDM symbols being spaced apart by one OFDM symbol, and wherein the portion of the CRSs for four or fewer antenna ports is limited to the CRSs for two or fewer antenna ports.

Abstract translation: 用于发送八个或更少天线端口的参考信号的方法包括：将用于四个或更少天线端口的公共参考信号（CRS）的一部分映射到具有正常循环前缀配置的包括第一时隙和第二时隙的下行子帧中; 根据预设模式将用于八个或更少天线端口的信道状态信息参考信号（CSI-RS）映射到下行链路子帧中; 并发送CRS和CSI-RS映射到的下行链路子帧，其中预设模式定义要映射到下行链路子帧中的数据区域的两个OFDM符号上的八个或更少的天线端口的CSI-RS，其中 两个OFDM符号被一个OFDM符号间隔开，并且其中用于四个或更少天线端口的CRS的部分限于两个或更少天线端口的CRS。

公开(公告)号：US20150078308A1

公开(公告)日：2015-03-19

申请号：US14547925

申请日：2014-11-19

Applicant: LG ELECTRONICS INC.

Inventor： Moon Il LEE ,  Jae Hoon CHUNG ,  Hyun Soo KO ,  Bin Chul IHM

IPC: H04L5/00

CPC classification number: H04L5/0048 ,  H04L5/0023 ,  H04L5/005 ,  H04L27/2602 ,  H04L27/2607

Abstract: The present invention relates to a method for transmitting reference signals for measuring a channel in a downlink MIMO (Multi Input Multi Output) system. The method comprises the steps of: configuring, by a base station at which Nt transmit antennas are configured, Nt reference signals for channel measurement, where Nt≧1; and transmitting, by the base station, the Nt reference signals to a use equipment in subframes at a specific cycle. The specific cycle is configured to include more than one subframe.

Abstract translation: 本发明涉及用于在下行链路MIMO（多输入多输出）系统中发送用于测量信道的参考信号的方法。 该方法包括以下步骤：通过配置Nt个发射天线的基站来配置用于信道测量的Nt个参考信号，其中Nt≥1; 并且由基站将Nt个参考信号以特定周期的子帧发送到使用设备。 该特定周期被配置为包括多于一个子帧。

公开(公告)号：US20150009971A1

公开(公告)日：2015-01-08

申请号：US14473166

申请日：2014-08-29

Applicant: LG ELECTRONICS INC.

Inventor： Seung Hee HAN ,  Sung Ho MOON ,  Jae Hoon CHUNG ,  Moon Il LEE ,  Yeong Hyeon KWON

IPC: H04L5/00 ,  H04L27/26

CPC classification number: H04L5/0053 ,  H04J11/005 ,  H04J13/004 ,  H04J13/0062 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0055 ,  H04L5/0057 ,  H04L27/2636 ,  H04L27/2697

Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method for transmitting control information through a PUCCH in a wireless communication system and an apparatus for same comprising the steps of: obtaining a plurality of second modulation symbol streams corresponding to a plurality of SC-FDMA (Single Carrier Frequency Division Multiplexing) symbols by diffusing a plurality of first modulation symbol streams to form the first modulation symbol streams corresponding to the SC-FDMA symbols within a first slot; obtaining a plurality of complex symbol streams by performing a DFT (Discrete Fourier Transform) pre-coding process for the plurality of second modulation symbol streams; and transmitting the plurality of complex symbol streams through the PUCCH wherein the plurality of second modulation symbol streams are scrambled in a SC-FDMA symbol level.

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。 更具体地说，本发明涉及一种通过无线通信系统中的PUCCH发送控制信息的方法及其装置，包括以下步骤：获得与多个SC-FDMA（Single）对应的多个第二调制符号流 载波频分复用）符号，通过扩散多个第一调制符号流以形成与第一时隙内的SC-FDMA符号对应的第一调制符号流; 通过对所述多个第二调制符号流执行DFT（离散傅里叶变换）预编码处理来获得多个复符号流; 以及通过所述PUCCH发送所述多个复符号流，其中所述多个第二调制符号流以SC-FDMA符号级加扰。