Method for transmitting and receiving downlink control information
    1.
    发明申请
    Method for transmitting and receiving downlink control information 有权
    发送和接收下行链路控制信息的方法

    公开(公告)号:US20090262854A1

    公开(公告)日:2009-10-22

    申请号:US12382999

    申请日:2009-03-27

    IPC分类号: H04B7/02

    摘要: A method for efficiently transmitting and receiving downlink control information is disclosed. The method includes, at an base station, receiving feedback information including a preceding matrix index (PMI) from an user equipment (UE) and transmitting precoding information having a predetermined bit number according to the number of antenna ports and a transmission mode of the base station. The preceding information of a predetermined transmission mode in the preceding information includes confirmation information indicating that the base station uses a PMI which is recently received from the UE. At this time, if the confirmation information is transmitted via a specific resource block (RB) of an nth subframe, the PMI which is recently received is received via a resource block of an n−xth subframe or a subframe prior to the n−xth subframe corresponding to the specific resource block. In addition, “x” is a predetermined integer or an integer determined by upper layer signaling of a physical layer or higher.

    摘要翻译: 公开了一种高效地发送和接收下行链路控制信息的方法。 该方法包括:在基站处,从用户设备(UE)接收包括前述矩阵索引(PMI)的反馈信息,并根据天线端口的数量和基站的传输模式发送具有预定比特数的预编码信息 站。 先前信息中的预定传输模式的前述信息包括指示基站使用最近从UE接收的PMI的确认信息。 此时,如果通过第n个子帧的特定资源块(RB)发送确认信息,则经由n-x个子帧的资源块或第n-xth个子帧之前的子帧接收最近接收到的PMI 子帧对应于特定的资源块。 此外,“x”是由物理层或更高层的上层信令确定的预定整数或整数。

    Method for allocating reference signals in MIMO system
    6.
    发明授权
    Method for allocating reference signals in MIMO system 有权
    MIMO系统中分配参考信号的方法

    公开(公告)号:US08400907B2

    公开(公告)日:2013-03-19

    申请号:US13439828

    申请日:2012-04-04

    IPC分类号: H04J11/00

    摘要: A user equipment (UE) receiving a plurality of reference signals in a wireless multiple-input multiple-output (MIMO) communication system includes a transceiver configured for receiving the plurality of reference signals for multiple antennas in a sub-frame, the sub-frame including a plurality of Orthogonal Frequency Division Multiplexing (OFDM) symbols in a time domain over a plurality of sub-carriers in a frequency domain. A first array is repeated in the frequency domain on a first OFDM symbol of the sub-frame, a second array is repeated in the frequency domain on a second OFDM symbol of the sub-frame and a third array is repeated in the frequency domain on a third OFDM symbol of the sub-frame, and each of the first, second and third arrays consists of six contiguous symbols in the frequency domain.

    摘要翻译: 在无线多输入多输出(MIMO)通信系统中接收多个参考信号的用户设备(UE)包括:收发器,被配置为在子帧中接收多个天线的多个参考信号,子帧 包括在频域中的多个子载波上的时域中的多个正交频分复用(OFDM)符号。 在子帧的第一OFDM符号上的频域中重复第一阵列,在子帧的第二OFDM符号上在频域中重复第二阵列,并且在频域上重复第三阵列 子帧的第三OFDM符号,并且第一,第二和第三阵列中的每一个由频域中的六个相邻符号组成。