Channel state information feedback method and apparatus in a multi-node system
    94.
    发明授权
    Channel state information feedback method and apparatus in a multi-node system 有权
    多节点系统中的信道状态信息反馈方法和装置

    公开(公告)号:US09258094B2

    公开(公告)日:2016-02-09

    申请号:US14112851

    申请日:2012-04-20

    IPC分类号: H04L5/00 H04L1/00

    CPC分类号: H04L5/0051 H04L1/0026

    摘要: A method and apparatus of feeding back channel state information in a multi-node system are provided. The method includes receiving a reference signal of N nodes, wherein N is a natural number equal to or more than 2, aligning the N nodes in an order of preferring the N nodes based on a result of measuring the reference signal, generating channel state information for the aligned nodes, and transmitting the generated channel state information to the base station, wherein the channel state information is generated with respect to N node combinations configured from the aligned nodes, and wherein the N node combinations are obtained by adding next highest-priority nodes to a first node combination one by one, the first node combination consisting a highest-priority node among the aligned nodes.

    摘要翻译: 提供了一种在多节点系统中反馈信道状态信息的方法和装置。 该方法包括接收N个节点的参考信号,其中N是等于或大于2的自然数,基于测量参考信号的结果,按照优选N个节点的顺序对准N个节点,产生信道状态信息 并且将所生成的信道状态信息发送到基站,其中相对于从对齐的节点配置的N个节点组合生成信道状态信息,并且其中通过将下一个最高优先级相加来获得N个节点组合 节点一个一个地连接到第一节点组合,第一节点组合由对齐节点中的最高优先级节点组成。

    Signal transmitting method and device in a multi-node system
    96.
    发明授权
    Signal transmitting method and device in a multi-node system 有权
    多节点系统中的信号发送方法和装置

    公开(公告)号:US09042475B2

    公开(公告)日:2015-05-26

    申请号:US14006502

    申请日:2011-12-16

    摘要: Provided is a signal transmitting method of a terminal in a multi-node system including and configured to control a plurality of nodes and a base station connected to each of the plurality of nodes. The method includes: estimating a channel of at least one node by receiving a reference signal from at least one node among the plurality of nodes; selecting a preferred rank and a precoding matrix index by applying at least one precoding matrix to the estimated channel; selecting one of a plurality of codeword-layer mappings (CLMs) by applying a precoding matrix indicated by the rank and the precoding matrix index; and transmitting the selected rank, the selected precoding matrix index, and a CLM indicator to the base station.

    摘要翻译: 提供了一种多节点系统中的终端的信号发送方法,包括并配置为控制多个节点和连接到多个节点中的每一个节点的基站。 该方法包括:通过从多个节点中的至少一个节点接收参考信号来估计至少一个节点的信道; 通过对估计的信道应用至少一个预编码矩阵来选择优选等级和预编码矩阵索引; 通过应用由秩和预编码矩阵索引指示的预编码矩阵来选择多个码字层映射(CLM)中的一个; 以及将所选择的等级,所选择的预编码矩阵索引和CLM指示符发送到所述基站。

    METHOD AND APPARATUS FOR CHANNEL ESTIMATION IN A DISTRIBUTED MULTI-NODE SYSTEM
    100.
    发明申请
    METHOD AND APPARATUS FOR CHANNEL ESTIMATION IN A DISTRIBUTED MULTI-NODE SYSTEM 有权
    分布式多节点系统中信道估计的方法与装置

    公开(公告)号:US20140198683A1

    公开(公告)日:2014-07-17

    申请号:US14343669

    申请日:2012-09-07

    IPC分类号: H04L12/26

    摘要: Disclosed are a method and an apparatus for channel estimation in a multi-node distributed system. A method for channel state estimation comprises the steps of: a terminal receiving channel state information reference signal (CSI-RS) set-up information; and the terminal calculating interference on the basis of the CSI-RS set-up information and then transmitting channel state information (CSI) based on the interference, wherein the CSI-RS set-up information may include at least one of an external interference measurement field and an internal interference measurement field. Accordingly, during the external interference and internal interference measurements, the node for use in the interference measurements may be controlled by a base station so that interference is accurately measured and feedback of accurate channel information is enabled.

    摘要翻译: 公开了一种用于多节点分布式系统中的信道估计的方法和装置。 用于信道状态估计的方法包括以下步骤:终端接收信道状态信息参考信号(CSI-RS)建立信息; 以及所述终端基于所述CSI-RS建立信息来计算干扰,然后基于所述干扰发送信道状态信息(CSI),其中所述CSI-RS建立信息可以包括以下中的至少一个:外部干扰测量 场和内部干扰测量领域。 因此,在外部干扰和内部干扰测量期间,用于干扰测量的节点可以由基站控制,从而准确地测量干扰并且使能准确的信道信息的反馈。