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1.发明授权公开(公告)号：US08547901B2
公开(公告)日：2013-10-01
申请号：US12716252
申请日：2010-03-02
摘要： In accordance with an example embodiment of the present invention, an apparatus comprising: at least one processor; and at least one memory including computer program code, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus to perform at least the following: receiving a MIMO (multiple-input multiple output) encoded symbol vector, the symbol vector encoding a plurality of streams of a source node; estimating channel matrix between the source node and the apparatus; re-ordering columns in said channel matrix; determining a plurality of feedback bits based at least in part on the re-ordered channel matrix, wherein each bit of the feedback bits indicates detection or no detection of the corresponding antenna streams of the source node; and transmitting the feedback bits.
摘要翻译： 根据本发明的示例实施例，一种装置，包括：至少一个处理器; 以及包括计算机程序代码的至少一个存储器，其中所述至少一个存储器和所述计算机程序代码被配置为与所述至少一个处理器一起使所述设备至少执行以下操作：接收MIMO（多输入多个 输出）编码符号向量，编码源节点的多个流的符号向量; 估计源节点和设备之间的信道矩阵; 重新排列所述通道矩阵中的列; 至少部分地基于所述重新排序的信道矩阵来确定多个反馈比特，其中所述反馈比特的每个比特指示对所述源节点的相应天线流的检测或不检测; 并发送反馈比特。
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公开(公告)号：US20100303176A1
公开(公告)日：2010-12-02
申请号：US12475755
申请日：2009-06-01
IPC分类号： H04L27/06
CPC分类号： H04L25/03203 , H04L25/03318 , H04L2025/03426
摘要： Methods and apparatuses are provided for MIMO detection. A method may include considering a symbol vector received over MIMO system. The method may further include generating a list comprising a predefined number of candidate transmit symbol vectors based at least in part upon the received symbol vector using a trellis comprising a plurality of nodes that apply distributed list decoding to generate the list, wherein the list of the predefined number of candidate transmit symbol vectors comprises the predefined number of candidate transmit symbol vectors derived from the set of all possible trellis paths as determined based at least in part upon the respective cumulative trellis path weights. Corresponding apparatuses are also provided.
摘要翻译： 提供了用于MIMO检测的方法和装置。 一种方法可以包括考虑通过MIMO系统接收的符号向量。 该方法可以进一步包括至少部分地基于所接收的符号向量来生成包括预定数量的候选发射符号向量的列表，所述符号向量使用包括多个节点的网格，所述节点应用分布式列表解码以生成所述列表，其中， 预定数量的候选发送符号向量包括从至少部分地基于相应的累积网格路径权重确定的所有可能网格路径的集合导出的预定数量的候选发射符号向量。 还提供了相应的装置。
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3.发明申请公开(公告)号：US20110216693A1
公开(公告)日：2011-09-08
申请号：US12716252
申请日：2010-03-02
摘要： In accordance with an example embodiment of the present invention, an apparatus comprising: at least one processor; and at least one memory including computer program code, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus to perform at least the following: receiving a MIMO (multiple-input multiple output) encoded symbol vector, the symbol vector encoding a plurality of streams of a source node; estimating channel matrix between the source node and the apparatus; re-ordering columns in said channel matrix; determining a plurality of feedback bits based at least in part on the re-ordered channel matrix, wherein each bit of the feedback bits indicates detection or no detection of the corresponding antenna streams of the source node; and transmitting the feedback bits.
摘要翻译： 根据本发明的示例实施例，一种装置，包括：至少一个处理器; 以及包括计算机程序代码的至少一个存储器，其中所述至少一个存储器和所述计算机程序代码被配置为与所述至少一个处理器一起使所述设备至少执行以下操作：接收MIMO（多输入多个 输出）编码符号向量，编码源节点的多个流的符号向量; 估计源节点和设备之间的信道矩阵; 重新排列所述通道矩阵中的列; 至少部分地基于所述重新排序的信道矩阵来确定多个反馈比特，其中所述反馈比特的每个比特指示对所述源节点的相应天线流的检测或不检测; 并发送反馈比特。
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4.发明申请公开(公告)号：US20110080964A1
公开(公告)日：2011-04-07
申请号：US12808141
申请日：2007-12-12
IPC分类号： H04L27/28
CPC分类号： H04B7/0619 , H04B7/0417
摘要： A method for beamforming is described. The method includes generating a pseudo-random unitary matrix. A first codebook is rotated with the pseudo-random unitary matrix. The method includes generating a second codebook based upon the rotated codebook and a correlation matrix. A codeword is selected from the second codebook using a channel matrix. The correlation matrix is updated based upon the selected codeword. The method includes transmitting an index of the selected codeword in the codebook. The method includes receiving the codeword index. A codebook is consulted using the codeword index to locate a codeword. Beamforming is performed based upon the located codeword. An apparatus is also described.
摘要翻译： 描述了波束成形的方法。 该方法包括生成伪随机酉矩阵。 第一码本用伪随机酉矩阵旋转。 该方法包括基于旋转的码本和相关矩阵生成第二码本。 使用信道矩阵从第二码本中选择码字。 基于选择的码字来更新相关矩阵。 该方法包括在码本中发送所选码字的索引。 该方法包括接收码字索引。 使用码字索引查询码本以定位码字。 基于定位的码字执行波束形成。 还描述了一种装置。
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