CODEBOOK SEARCHING APPARATUS AND METHOD THEREOF
    1.
    发明申请
    CODEBOOK SEARCHING APPARATUS AND METHOD THEREOF 有权
    CODEBOOK SEARCHING APPARATUS及其方法

    公开(公告)号:US20110038433A1

    公开(公告)日:2011-02-17

    申请号:US12608005

    申请日:2009-10-29

    IPC分类号: H04L27/28

    CPC分类号: H04L25/03828

    摘要: Exemplary embodiments of the present disclosure propose multiple codebook searching methods for a receiver in a communication system, wherein the communication system uses a codebook having L pre-coding matrices. First, L matrices are calculated according to the L pre-coding matrices, and the L matrices are inversed mean square error matrices of the L pre-encoding matrices. Then, diagonal cofactors or determinants of at least S matrices of the L matrices are calculated, and a pre-coding matrix used by the receiver is found according to the maximum cofactors of the diagonal of the at least S matrices or ratios between the maximum cofactors of the diagonals and the determinants of the at least S matrices.

    摘要翻译: 本公开的示例性实施例提出了用于通信系统中的接收机的多个码本搜索方法,其中通信系统使用具有L个预编码矩阵的码本。 首先,根据L个预编码矩阵计算L个矩阵,并且L个矩阵是L个预编码矩阵的倒数均方误差矩阵。 然后,计算L个矩阵的至少S个矩阵的对角辅助因子或行列式,并且根据至少S个矩阵的对角线的最大辅因子或最大辅因子之间的比率,找到由接收器使用的预编码矩阵 的对角线和至少S个矩阵的决定因素。

    Codebook searching apparatus and method thereof
    2.
    发明授权
    Codebook searching apparatus and method thereof 有权
    码本搜索装置及其方法

    公开(公告)号:US08275060B2

    公开(公告)日:2012-09-25

    申请号:US12608005

    申请日:2009-10-29

    IPC分类号: H04K1/10

    CPC分类号: H04L25/03828

    摘要: Exemplary embodiments of the present disclosure propose multiple codebook searching methods for a receiver in a communication system, wherein the communication system uses a codebook having L pre-coding matrices. First, L matrices are calculated according to the L pre-coding matrices, and the L matrices are inversed mean square error matrices of the L pre-encoding matrices. Then, diagonal cofactors or determinants of at least S matrices of the L matrices are calculated, and a pre-coding matrix used by the receiver is found according to the maximum cofactors of the diagonal of the at least S matrices or ratios between the maximum cofactors of the diagonals and the determinants of the at least S matrices.

    摘要翻译: 本公开的示例性实施例提出了用于通信系统中的接收机的多个码本搜索方法,其中通信系统使用具有L个预编码矩阵的码本。 首先,根据L个预编码矩阵计算L个矩阵,并且L个矩阵是L个预编码矩阵的倒数均方误差矩阵。 然后,计算L个矩阵的至少S个矩阵的对角辅助因子或行列式,并且根据至少S个矩阵的对角线的最大辅因子或最大辅因子之间的比率,找到由接收器使用的预编码矩阵 的对角线和至少S个矩阵的决定因素。

    Method and apparatus for spatial mapping matrix searching
    3.
    发明授权
    Method and apparatus for spatial mapping matrix searching 有权
    空间映射矩阵搜索的方法和装置

    公开(公告)号:US08391408B2

    公开(公告)日:2013-03-05

    申请号:US12431579

    申请日:2009-04-28

    IPC分类号: H04L25/49

    CPC分类号: H04B7/0413 H04B7/0682

    摘要: A spatial mapping matrix searching apparatus may include a plurality of antennae configured to receive a plurality of transmission signals, a post-coding module configured to generate a post-coding information according to the received plurality of transmission signals and generate a received signal from the received plurality of transmission signals, and a pre-coding module configured to generate a pre-coding information according to the post-coding information.

    摘要翻译: 空间映射矩阵搜索装置可以包括被配置为接收多个发送信号的多个天线,后置编码模块,被配置为根据所接收的多个发送信号生成后置编码信息,并从接收到的信号生成接收信号 多个发送信号,以及预编码模块,被配置为根据后编码信息生成预编码信息。

    SYSTEMS AND METHODS FOR MULTIPLE-INPUT MULTIPLE-OUTPUT COMMUNICATIONS SYSTEMS
    5.
    发明申请
    SYSTEMS AND METHODS FOR MULTIPLE-INPUT MULTIPLE-OUTPUT COMMUNICATIONS SYSTEMS 有权
    多输入多输出通信系统的系统与方法

    公开(公告)号:US20090279631A1

    公开(公告)日:2009-11-12

    申请号:US12432309

    申请日:2009-04-29

    IPC分类号: H04L1/02

    摘要: In a multiple input multiple output (MIMO) wireless communication system, there is provided a method for error correction. The method includes receiving an original signal in an initial MIMO format, detecting an error in the original signal, and notifying a transmitter of the error detected in the original signal. The method also includes receiving a new retransmitted signal in a first retransmitted MIMO format, different from the initial MIMO format, the new retransmitted signal including at least a fraction of encoded bits of the original signal. The method also includes correcting the original signal by applying the new retransmitted signal to the original signal.

    摘要翻译: 在多输入多输出(MIMO)无线通信系统中,提供了一种用于纠错的方法。 该方法包括以初始MIMO格式接收原始信号,检测原始信号中的错误,以及通知发送机在原始信号中检测到的错误。 该方法还包括以与初始MIMO格式不同的第一重传MIMO格式接收新的重传信号,该新的重发信号至少包括原始信号的编码比特的一部分。 该方法还包括通过将新的重发信号应用于原始信号来校正原始信号。

    Symbol detector and sphere decoding method
    6.
    发明授权
    Symbol detector and sphere decoding method 有权
    符号检测器和球体解码方法

    公开(公告)号:US08160182B2

    公开(公告)日:2012-04-17

    申请号:US12410416

    申请日:2009-03-24

    IPC分类号: H04L27/06 H03D1/24

    摘要: A symbol detector with a sphere decoding method implemented therein. A baseband signal is received to determine a maximum likelihood solution using the sphere decoding algorithm. A QR decomposer performs a QR decomposition process on a channel response matrix to generate a Q matrix and an R matrix. A matrix transformer generates an inner product matrix of the Q matrix and the received signal. A scheduler reorganizes a search tree, and takes a search mission apart into a plurality of independent branch missions, wherein the search tree defines a full search depth Nfull. A plurality of Euclidean distance calculators are controlled by the scheduler to operate in parallel, wherein each has a plurality of calculation units cascaded in a pipeline structure to search for the maximum likelihood solution based on the R matrix and the inner product matrix.

    摘要翻译: 一种其中实现了球体解码方法的符号检测器。 接收基带信号以使用球体解码算法确定最大似然解。 QR分解器对信道响应矩阵执行QR分解处理以产生Q矩阵和R矩阵。 矩阵变换器产生Q矩阵和接收信号的内积矩阵。 调度器重新组织搜索树,并将搜索任务分离成多个独立的分支任务,其中搜索树定义全搜索深度Nfull。 多个欧几里德距离计算器由调度器控制以并行操作,其中每个具有在流水线结构中级联的多个计算单元,以基于R矩阵和内积矩阵搜索最大似然解。

    SYMBOL DETECTOR AND SPHERE DECODING METHOD
    7.
    发明申请
    SYMBOL DETECTOR AND SPHERE DECODING METHOD 有权
    符号检测器和球形解码方法

    公开(公告)号:US20100014606A1

    公开(公告)日:2010-01-21

    申请号:US12410416

    申请日:2009-03-24

    IPC分类号: H04L5/12 H04L27/06

    摘要: A symbol detector with a sphere decoding method implemented therein. A baseband signal is received to determine a maximum likelihood solution using the sphere decoding algorithm. A QR decomposer performs a QR decomposition process on a channel response matrix to generate a Q matrix and an R matrix. A matrix transformer generates an inner product matrix of the Q matrix and the received signal. A scheduler reorganizes a search tree, and takes a search mission apart into a plurality of independent branch missions, wherein the search tree defines a full search depth Nfull. A plurality of Euclidean distance calculators are controlled by the scheduler to operate in parallel, wherein each has a plurality of calculation units cascaded in a pipeline structure to search for the maximum likelihood solution based on the R matrix and the inner product matrix.

    摘要翻译: 一种其中实现了球体解码方法的符号检测器。 接收基带信号以使用球体解码算法确定最大似然解。 QR分解器对信道响应矩阵执行QR分解处理以产生Q矩阵和R矩阵。 矩阵变换器产生Q矩阵和接收信号的内积矩阵。 调度器重新组织搜索树,并将搜索任务分离成多个独立的分支任务,其中搜索树定义全搜索深度Nfull。 多个欧几里德距离计算器由调度器控制以并行操作,其中每个具有在流水线结构中级联的多个计算单元,以基于R矩阵和内积矩阵搜索最大似然解。

    Systems and methods for multiple-input multiple-output communications systems
    9.
    发明授权
    Systems and methods for multiple-input multiple-output communications systems 有权
    多输入多输出通信系统的系统和方法

    公开(公告)号:US08526516B2

    公开(公告)日:2013-09-03

    申请号:US12432309

    申请日:2009-04-29

    IPC分类号: H04L27/28

    摘要: In a multiple input multiple output (MIMO) wireless communication system, there is provided a method for error correction. The method includes receiving an original signal in an initial MIMO format, detecting an error in the original signal, and notifying a transmitter of the error detected in the original signal. The method also includes receiving a new retransmitted signal in a first retransmitted MIMO format, different from the initial MIMO format, the new retransmitted signal including at least a fraction of encoded bits of the original signal. The method also includes correcting the original signal by applying the new retransmitted signal to the original signal.

    摘要翻译: 在多输入多输出(MIMO)无线通信系统中,提供了一种用于纠错的方法。 该方法包括以初始MIMO格式接收原始信号,检测原始信号中的错误,以及通知发送机在原始信号中检测到的错误。 该方法还包括以与初始MIMO格式不同的第一重传MIMO格式接收新的重传信号,该新的重发信号至少包括原始信号的编码比特的一部分。 该方法还包括通过将新的重发信号应用于原始信号来校正原始信号。

    CHANNEL INFORMATION FEEDBACK METHOD AND WIRELESS COMMUNICATION DEVICE USING THE SAME
    10.
    发明申请
    CHANNEL INFORMATION FEEDBACK METHOD AND WIRELESS COMMUNICATION DEVICE USING THE SAME 有权
    信道反馈方法和无线通信装置

    公开(公告)号:US20130163645A1

    公开(公告)日:2013-06-27

    申请号:US13338207

    申请日:2011-12-27

    IPC分类号: H04B7/02 H04B1/38 H04B17/00

    摘要: A channel information feedback method for multi-antenna system, and a wireless communication device using the same method are provided. The proposed method could reduce feedback overhead for multiple-input multiple-output (MIMO) wireless channel information, and is based on compressive sensing technique. Prior to sending back channel information, a receiver estimates the channel and multiplies the vectorized channel with a random matrix to generate compressed feedback content. Upon receiving the compressed feedback content at a transmitter, the channel information could be restored with signal recovery algorithms of compressive sensing technique. In the other embodiment, the proposed method further adaptively adjusts compression ratio of the compressed feedback content in accordance to the prevailing channel quality. Further, for slow-varying MIMO channels, there is proposed another channel information feedback method which switches between a fixed spasifying-basis and a signal-dependent sparsifying-basis.

    摘要翻译: 提供了一种用于多天线系统的信道信息反馈方法和使用相同方法的无线通信装置。 所提出的方法可以减少多输入多输出(MIMO)无线信道信息的反馈开销,并且基于压缩感测技术。 在发送信道信息之前,接收机估计信道并将矢量化信道与随机矩阵相乘以产生压缩反馈内容。 一旦在发射机处接收到压缩的反馈内容,可以利用压缩感测技术的信号恢复算法恢复信道信息。 在另一实施例中,所提出的方法进一步根据主流信道质量自适应地调整压缩反馈内容的压缩比。 此外,对于慢速变化的MIMO信道,提出了另一种信道信息反馈方法,其基于固定基于扩频的信号和基于信号的稀疏化。