Transmission method and device for a downlink reference signal

    公开(公告)号:US09313003B2

    公开(公告)日:2016-04-12

    申请号:US14558484

    申请日:2014-12-02

    CPC classification number: H04L5/0048 H04J13/00

    Abstract: The present invention relates a method in which a base station transmits a downlink signal by using a plurality of layers comprises the steps of: multiplexing and transmitting dedicated reference signals for the plurality of layers on the basis of a reference signal pattern, wherein 24 resource element positions comprised in the reference signal pattern are set as 6 groups, the 6 groups are set as 2 high-level groups, the reference signal for the plurality of layer is split and placed in the 2 high-level groups, and the reference signal for 2 or more layers placed in the same group is subjected to code-division multiplexing.

    Method and apparatus for transmitting a reference signal in a multi-antenna system
    164.
    发明授权
    Method and apparatus for transmitting a reference signal in a multi-antenna system 有权
    用于在多天线系统中发送参考信号的方法和装置

    公开(公告)号:US09236988B2

    公开(公告)日:2016-01-12

    申请号:US14524833

    申请日:2014-10-27

    Abstract: A method for transmitting, by a user equipment (UE), a demodulation reference signal (DMRS) for a physical uplink shared channel (PUSCH) in a wireless communication system, can include generating a plurality of P DMRS sequences associated with a plurality of P layers respectively, wherein a plurality of P cyclic shifts are allocated to the P DMRS sequences respectively, mapping the plurality of P DMRS sequences to resource elements (REs), and transmitting the plurality of P DMRS sequences to a base station, wherein the plurality of P cyclic shifts are determined based on first and second values, which are indicated by a cyclic shift field in downlink control information (DCI), received through a physical downlink control channel (PDCCH).

    Abstract translation: 一种用于在无线通信系统中由用户设备(UE)发送用于物理上行链路共享信道(PUSCH)的解调参考信号(DMRS)的方法可以包括生成与多个P相关联的多个P DMRS序列 层,其中多个P循环移位分别分配给P DMRS序列,将多个P DMRS序列映射到资源元素(RE),并将多个P DMRS序列发送到基站,其中多个 基于通过物理下行链路控制信道(PDCCH)接收的下行链路控制信息(DCI)中的循环移位字段指示的第一和第二值来确定P循环移位。

    Method and apparatus for transmitting downlink signal in a MIMO wireless communication system
    168.
    发明授权
    Method and apparatus for transmitting downlink signal in a MIMO wireless communication system 有权
    用于在MIMO无线通信系统中发送下行链路信号的方法和装置

    公开(公告)号:US09119199B2

    公开(公告)日:2015-08-25

    申请号:US14246947

    申请日:2014-04-07

    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。

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