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    • 51. 发明申请
    • METHOD AND APPARATUS FOR TRANSMITTING DOWNLINK REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS MULTIPLE ANTENNAS
    • 用于在支持多个天线的无线通信系统中发送下行链路参考信号的方法和设备
    • WO2011019228A3
    • 2011-06-23
    • PCT/KR2010005319
    • 2010-08-13
    • LG ELECTRONICS INCKO HYUN SOOHAN SEUNG HEECHUNG JAE HOONIHM BIN CHULLEE MOON IL
    • KO HYUN SOOHAN SEUNG HEECHUNG JAE HOONIHM BIN CHULLEE MOON IL
    • H04L27/26H04J11/00
    • H04L5/0048H04B7/0413H04B7/0626H04B7/216H04J13/004H04L5/0016H04L5/0023H04L5/0051H04L5/0053H04L5/0057H04L5/0094H04L25/0224H04L27/2601H04L27/2613H04W52/325H04W72/02H04W72/04H04W72/085
    • The present invention relates to a wireless communication system, and in particular, to a method and an apparatus for transmitting a downlink reference signal in a wireless communication system that supports multiple antennas. The method for transmitting a channel status information reference signal for a maximum of eight antenna ports according to one embodiment of the present invention comprises: in a base station, mapping the channel status information reference signal for a maximum of eight antenna ports onto a data region of a downlink subframe having a general cyclic prefix (CP) configuration, according to a preset pattern; and in the base station, transmitting the downlink subframe into which the channel status reference signal for the maximum of eight antenna ports has been mapped, wherein the preset pattern defines the channel status information reference signal for the maximum of eight antenna ports to be mapped onto two OFDM symbols of the data region in the downlink subframe and then 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 preset pattern may be two consecutive subcarrier positions and two other consecutive subcarrier positions spaced apart by four subcarriers.
    • 用于在支持多个天线的无线通信系统中发送下行链路参考信号的方法和设备技术领域本发明涉及无线通信系统,并且尤其涉及用于在支持多个天线的无线通信系统中发送下行链路参考信号 根据本发明的一个实施例,用于发送最多八个天线端口的信道状态信息参考信号的方法包括:在基站中,将用于最多八个天线端口的信道状态信息参考信号映射到数据区域 根据预设的模式,确定具有一般循环前缀(CP)配置的下行链路子帧的下行链路子帧; 并且在基站中发送已经映射了最多八个天线端口的信道状态参考信号的下行链路子帧,其中,预设模式定义要映射到最大八个天线端口的信道状态信息参考信号 在下行链路子帧中的数据区域的两个OFDM符号,然后映射到两个OFDM符号中的每一个中的四个子载波位置中的至少一个,并且其中,由预设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, 连续的副载波位置被四个副载波隔开。
    • 53. 发明申请
    • METHOD AND APPARATUS FOR TRANSMITTING DOWNLINK REFERENCE SIGNAL
    • 用于发送下行链路参考信号的方法和装置
    • WO2011008062A3
    • 2011-04-21
    • PCT/KR2010004713
    • 2010-07-19
    • LG ELECTRONICS INCKO HYUN SOOCHUNG JAE HOONIHM BIN CHULLEE MOON IL
    • KO HYUN SOOCHUNG JAE HOONIHM BIN CHULLEE MOON IL
    • H04J11/00
    • H04J13/004H04L5/0016H04L5/0023H04L5/0026H04L5/0051H04L27/2613
    • The present invention relates to a wireless communication system, and provides a method and an apparatus for transmitting a downlink reference signal in the wireless communication system. According to one embodiment of the present invention, a method for a base station to transmit a downlink signal by using two or more layers, comprises the steps of: multiplexing and transmitting a reference signal for the two or more layers on the basis of a reference signal pattern on a data region of a downlink subframe; and transmitting data for the two or more layers on the data region of the downlink subframe, wherein the reference signal for the two or more layers is a dedicated reference signal that is used to demodulate the data for the two or more layers on a receiving end, and in the multiplexing step of the reference signal, the reference signal for the two or more layers is code-division-multiplexed by an orthogonal code of a length of at least 2.
    • 无线通信系统技术领域本发明涉及一种无线通信系统,提供了一种用于在无线通信系统中发送下行链路参考信号的方法和装置。 根据本发明的一个实施例,一种用于基站通过使用两层或多层传输下行链路信号的方法,包括以下步骤:基于参考来复用和传输两层或更多层的参考信号 在下行链路子帧的数据区域上的信号模式; 以及在所述下行链路子帧的所述数据区上发送所述两层或更多层的数据,其中所述两层或更多层的参考信号是专用参考信号,用于解调所述两层或更多层在接收端的数据 ,并且在参考信号的多路复用步骤中,用于两个或多个层的参考信号由至少为2的长度的正交码进行码分复用。
    • 54. 发明申请
    • METHOD AND APPARATUS FOR TRANSMITTING DOWNLINK SIGNAL IN A MIMO WIRELESS COMMUNICAITON SYSTEM
    • 用于在MIMO无线通信系统中发送下行信号的方法和装置
    • WO2011031019A2
    • 2011-03-17
    • PCT/KR2010005625
    • 2010-08-24
    • LG ELECTRONICS INCKO HYUN SOOLEE MOON ILKOO JA HOCHUNG JAE HOONIHM BIN CHUL
    • KO HYUN SOOLEE MOON ILKOO JA HOCHUNG JAE HOONIHM BIN CHUL
    • H04B7/04
    • H04W72/042H04B7/04H04B7/0413H04W88/02H04W88/08
    • 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.
    • 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。