公开(公告)号：US20150319750A1

公开(公告)日：2015-11-05

申请号：US14797560

申请日：2015-07-13

Applicant: LG ELECTRONICS INC.

Inventor： Hyun Soo KO ,  Jae Hoon Chung ,  Bin Chul Ihm ,  Moon II Lee

IPC: H04W72/04 ,  H04B1/707 ,  H04L5/00 ,  H04B7/04

CPC classification number: H04W72/048 ,  H04B1/707 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0665 ,  H04B2201/70701 ,  H04L5/0007 ,  H04L5/0051 ,  H04L5/0053

Abstract: The present invention relates to a method in which a user equipment receives a downlink signal from a base station in a wireless communication system that supports downlink mimo transmission according to one embodiment of the present invention comprises: receiving downlink control information that includes information indicative of the number of layers (n, 1≦n≦8) where one or two enabled code words of the downlink mimo transmission are mapped; on the basis of the downlink control information, receiving downlink data transmitted over the respective n layers and a ue-specific reference signal for each of the n layers; and decoding the downlink data on the basis of the ue-specific reference signals, wherein the information indicative of the number of layers can further include information on a code for identifying the ue-specific reference signals.

Abstract translation: 本发明涉及一种在根据本发明的一个实施例的用户设备从支持下行MIMO传输的无线通信系统中的基站接收下行链路信号的方法，包括：接收下行链路控制信息，该信息包括指示 其中映射了下行链路mimo传输的一个或两个使能码字的层数（n，1＆nlE; n＆nlE; 8） 基于下行链路控制信息，接收通过各个n个层发送的下行链路数据和n个层中的每一个的特定参考信号; 以及基于特定参考信号对下行链路数据进行解码，其中指示层数的信息可进一步包括关于识别特定参考信号的码的信息。

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：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：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：US20140362812A1

公开(公告)日：2014-12-11

申请号：US14467351

申请日：2014-08-25

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04L1/08 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0623 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/1607 ,  H04L1/1614 ,  H04L1/1816 ,  H04L1/1822 ,  H04L1/1854 ,  H04L1/1861 ,  H04L1/1893 ,  H04L1/1896 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0055 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04W52/242 ,  H04W72/042 ,  H04W72/044 ,  H04W88/02 ,  H04W88/08

Abstract: The present invention relates to a method for transmitting control information regarding uplink multiple antenna transmission may comprise the steps of: transmitting DCI for scheduling the uplink transmission of a plurality of data blocks through a PDCCH; receiving the plurality of data blocks scheduled by the DCI; transmitting information which indicates positive acknowledgement or negative acknowledgement to each of the plurality of received data blocks through the PHICH; and receiving retransmission for the negative acknowledged data blocks. When the number of the negative-acknowledged data blocks is not equal to the number data blocks indicated in the PDCCH, a pre-coding matrix, which is for the number of transmission layers equivalent to that of layers corresponding to the negative-acknowledged data blocks, may be used for retransmission.

Abstract translation: 本发明涉及一种用于发送关于上行链路多天线传输的控制信息的方法，可以包括以下步骤：通过PDCCH发送用于调度多个数据块的上行链路传输的DCI; 接收由DCI调度的多个数据块; 通过PHICH向多个接收数据块中的每一个发送指示肯定确认或否定确认的信息; 并且接收用于否定的确认数据块的重传。 当否定确认数据块的数量不等于PDCCH中指示的数字数据块时，预编码矩阵用于与对应于否定确认数据块的层数相当的传输层数 ，可以用于重传。

公开(公告)号：US20140334453A1

公开(公告)日：2014-11-13

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: H04W72/08 ,  H04B7/06 ,  H04B7/216

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。