Multilevel cluster-based MIMO detection method and MIMO detector thereof
    1.
    发明授权
    Multilevel cluster-based MIMO detection method and MIMO detector thereof 有权
    基于多层次的基于MIMO的MIMO检测方法及其MIMO检测器

    公开(公告)号:US08665977B2

    公开(公告)日:2014-03-04

    申请号:US12550422

    申请日:2009-08-31

    IPC分类号: H04L5/12 H04L23/02

    CPC分类号: H04L25/03242 H04L27/34

    摘要: A MIMO detection method for a receiver in a MIMO system using N-QAM for modulation, the MIMO detection method including generating a plurality of symbol vector sets and a plurality of search radiuses, selecting a candidate symbol vector set corresponding to a highest level of a multilevel structure of N-QAM constellation, generating a search space corresponding to a lower level of the multilevel structure of N-QAM constellation according to the selected candidate symbol vector set, confirming which level the search space corresponds to, and generating a detection signal according to the search space when the level of the search space is the lowest level of the multilevel structure of the N-QAM constellation.

    摘要翻译: 一种MIMO检测方法,用于使用N-QAM进行调制的MIMO系统中的接收机,所述MIMO检测方法包括:生成多个符号向量集合和多个搜索半径;选择对应于最高级别的候选符号向量集合 N-QAM星座的多级结构,根据所选择的候选符号向量集合产生对应于N-QAM星座的多级结构的较低级别的搜索空间,确定搜索空间对应于哪个级别,并产生检测信号 当搜索空间的级别是N-QAM星座的多级结构的最低级时,到搜索空间。

    Multilevel Cluster-based MIMO Detection Method and MIMO Detector Thereof
    2.
    发明申请
    Multilevel Cluster-based MIMO Detection Method and MIMO Detector Thereof 有权
    基于多层次的基于群集的MIMO检测方法和MIMO检测器

    公开(公告)号:US20100054365A1

    公开(公告)日:2010-03-04

    申请号:US12550422

    申请日:2009-08-31

    IPC分类号: H03D1/24 H03D1/00

    CPC分类号: H04L25/03242 H04L27/34

    摘要: A MIMO detection method for a receiver in a MIMO system using N-QAM for modulation, the MIMO detection method including generating a plurality of symbol vector sets and a plurality of search radiuses, selecting a candidate symbol vector set corresponding to a highest level of a multilevel structure of N-QAM constellation, generating a search space corresponding to a lower level of the multilevel structure of N-QAM constellation according to the selected candidate symbol vector set, confirming which level the search space corresponds to, and generating a detection signal according to the search space when the level of the search space is the lowest level of the multilevel structure of the N-QAM constellation.

    摘要翻译: 一种MIMO检测方法,用于使用N-QAM进行调制的MIMO系统中的接收机,所述MIMO检测方法包括:生成多个符号向量集合和多个搜索半径;选择对应于最高级别的候选符号向量集合 N-QAM星座的多级结构,根据所选择的候选符号向量集合产生对应于N-QAM星座的多级结构的较低级别的搜索空间,确定搜索空间对应于哪个级别,并产生检测信号 当搜索空间的级别是N-QAM星座的多级结构的最低级时,到搜索空间。

    Receiver having inphase-quadrature imbalance compensation and inphase-quadrature imbalance compensation method thereof
    3.
    发明授权
    Receiver having inphase-quadrature imbalance compensation and inphase-quadrature imbalance compensation method thereof 有权
    具有同相正交不平衡补偿和相间正交不平衡补偿方法的接收机

    公开(公告)号:US08737534B2

    公开(公告)日:2014-05-27

    申请号:US13443281

    申请日:2012-04-10

    IPC分类号: H03D3/00

    摘要: A receiver having Inphase-Quadrature (I-Q) imbalance compensation and an I-Q imbalance compensation method are provided. The receiver calculates a cross-ratio parameter according to a first ideal receiving value and a first ideal conjugate receiving mirror of a first receiving signal and a second ideal receiving value and a second ideal conjugate receiving mirror of a second receiving signal. The receiver calculates an I-Q imbalance compensation parameter according to the cross-ratio parameter, the first ideal receiving value, the first ideal conjugate receiving mirror, the second ideal receiving value, the second ideal conjugate receiving mirror, the first receiving signal and the second receiving signal. The receiver compensates a third receiving signal according to the I-Q imbalance compensation parameter.

    摘要翻译: 提供具有相位正交(I-Q)不平衡补偿和I-Q不平衡补偿方法的接收机。 接收机根据第一接收信号的第一理想接收值和第一接收信号的第一理想共轭接收镜和第二接收信号的第二理想接收值和第二理想共轭接收镜来计算交叉比参数。 接收机根据交比参数,第一理想接收值,第一理想共轭接收镜,第二理想接收值,第二理想共轭接收镜,第一接收信号和第二接收器来计算IQ不平衡补偿参数 信号。 接收机根据I-Q不平衡补偿参数补偿第三个接收信号。

    RECEIVER HAVING INPHASE-QUADRATURE IMBALANCE COMPENSATION AND INPHASE-QUADRATURE IMBALANCE COMPENSATION METHOD THEREOF
    4.
    发明申请
    RECEIVER HAVING INPHASE-QUADRATURE IMBALANCE COMPENSATION AND INPHASE-QUADRATURE IMBALANCE COMPENSATION METHOD THEREOF 有权
    具有相位不平衡补偿和相位不平衡补偿方法的接收器

    公开(公告)号:US20130216004A1

    公开(公告)日:2013-08-22

    申请号:US13443281

    申请日:2012-04-10

    IPC分类号: H03D3/00

    摘要: A receiver having Inphase-Quadrature (I-Q) imbalance compensation and an I-Q imbalance compensation method thereof are provided. The receiver calculates a cross-ratio parameter according to a first ideal receiving value and a first ideal conjugate receiving mirror of a first receiving signal and a second ideal receiving value and a second ideal conjugate receiving mirror of a second receiving signal. The receiver calculates an I-Q imbalance compensation parameter according to the cross-ratio parameter, the first ideal receiving value, the first ideal conjugate receiving mirror, the second ideal receiving value, the second ideal conjugate receiving mirror, the first receiving signal and the second receiving signal. The receiver compensates a third receiving signal according to the I-Q imbalance compensation parameter.

    摘要翻译: 提供具有同相正交(I-Q)不平衡补偿和I-Q不平衡补偿方法的接收机。 接收机根据第一接收信号的第一理想接收值和第一接收信号的第一理想共轭接收镜和第二接收信号的第二理想接收值和第二理想共轭接收镜来计算交叉比参数。 接收机根据交比参数,第一理想接收值,第一理想共轭接收镜,第二理想接收值,第二理想共轭接收镜,第一接收信号和第二接收器来计算IQ不平衡补偿参数 信号。 接收机根据I-Q不平衡补偿参数补偿第三个接收信号。

    Time-to-digital converter and digital-controlled clock generator and all-digital clock generator
    6.
    发明授权
    Time-to-digital converter and digital-controlled clock generator and all-digital clock generator 有权
    时钟数字转换器和数字时钟发生器和全数字时钟发生器

    公开(公告)号:US08686756B2

    公开(公告)日:2014-04-01

    申请号:US13570104

    申请日:2012-08-08

    摘要: An all-digital clock generator includes a digitally-controlled clock generator and a processing unit. The digitally-controlled clock generator generates a clock signal in response to an enable signal and a digital signal. The processing unit has a frequency multiplier and a reference signal having a period, digitizes the period to generate a quantized signal, generates the digital signal according to the quantized signal and the frequency multiplier, and generates the enable signal according to the reference signal, the clock signal and the frequency multiplier.

    摘要翻译: 全数字时钟发生器包括数字控制的时钟发生器和处理单元。 数字控制时钟发生器响应于使能信号和数字信号产生时钟信号。 处理单元具有倍频器和具有周期的参考信号,数字化周期以产生量化信号,根据量化信号和倍频器产生数字信号,并根据参考信号产生使能信号, 时钟信号和倍频器。

    Device for computing tangent angles and associated DQPSK decoder
    7.
    发明授权
    Device for computing tangent angles and associated DQPSK decoder 有权
    用于计算切角和相关DQPSK解码器的装置

    公开(公告)号:US06834089B2

    公开(公告)日:2004-12-21

    申请号:US09818454

    申请日:2001-03-27

    IPC分类号: H03D322

    CPC分类号: H04L27/22

    摘要: A tangent angle computation device and associated DQPSK decoder. The computation device uses an eight-bit divider and a four-quadrant technique for finding a quantized angular value from an incoming signal. The quantized angular value is subsequently used to decode the incoming signal.

    摘要翻译: 切角计算装置和相关的DQPSK解码器。 计算装置使用八位分频器和四象限技术来从输入信号中找到量化的角度值。 量化的角度值随后用于对输入信号进行解码。

    TIME-TO DIGITAL CONVERTER AND DIGITAL-CONTROLLED CLOCK GENERATOR AND ALL-DIGITAL CLOCK GENERATOR
    8.
    发明申请
    TIME-TO DIGITAL CONVERTER AND DIGITAL-CONTROLLED CLOCK GENERATOR AND ALL-DIGITAL CLOCK GENERATOR 有权
    数字数字转换器和数字控制时钟发生器和全数字时钟发生器

    公开(公告)号:US20130038349A1

    公开(公告)日:2013-02-14

    申请号:US13570104

    申请日:2012-08-08

    IPC分类号: H03L7/00 H03K19/20 H03M1/12

    摘要: An all-digital clock generator includes a digitally-controlled clock generator and a processing unit. The digitally-controlled clock generator generates a clock signal in response to an enable signal and a digital signal. The processing unit has a frequency multiplier and a reference signal having a period, digitizes the period to generate a quantized signal, generates the digital signal according to the quantized signal and the frequency multiplier, and generates the enable signal according to the reference signal, the clock signal and the frequency multiplier.

    摘要翻译: 全数字时钟发生器包括数字控制的时钟发生器和处理单元。 数字控制时钟发生器响应于使能信号和数字信号产生时钟信号。 处理单元具有倍频器和具有周期的参考信号,数字化周期以产生量化信号,根据量化信号和倍频器产生数字信号,并根据参考信号产生使能信号, 时钟信号和倍频器。

    Method and device for digitally synthesizing frequency
    9.
    发明授权
    Method and device for digitally synthesizing frequency 失效
    数字合成频率的方法和装置

    公开(公告)号:US6150892A

    公开(公告)日:2000-11-21

    申请号:US182236

    申请日:1998-10-30

    摘要: A method and device for frequency synthesizing, in which the digital frequency synthesizer includes a clock pair having two similar ring-oscillators to separately generate a search frequency and an output frequency, a frequency tracking unit, and a clock controlling unit. The frequency-search method includes two stages: one stage is the coarse search stage based on the "Prune-and-Search", and other stage is the fine search stage based on the "fixed-step" algorithm. In order to determine which search scheme is used to search the target frequency and to determine the lock status, two cost functions for search and lock-in are derived. These two cost functions define the search threshold and the lock threshold, and these thresholds define the cost window and the lock window. If the frequency error is higher than both the search and lock thresholds, a coarse search is activated to estimate the correct frequency. And only when the frequency error falls between the search and the lock thresholds, should the fine search be activated. By properly assigning these two thresholds, the search performance, such as tinting and frequency error, and the output resolution can be improved. The digital frequency synthesizer which can be designed at HDL level and synthesized as part of a target cell library.

    摘要翻译: 一种用于频率合成的方法和装置,其中数字频率合成器包括具有两个类似的环形振荡器以分别产生搜索频率和输出频率的时钟对,频率跟踪单元和时钟控制单元。 频率搜索方法包括两个阶段:一阶段是基于“剪枝搜索”的粗搜索阶段,其他阶段是基于“固定步长”算法的精细搜索阶段。 为了确定哪个搜索方案用于搜索目标频率并确定锁定状态,导出用于搜索和锁定的两个成本函数。 这两个成本函数定义搜索阈值和锁定阈值,并且这些阈值定义了成本窗口和锁定窗口。 如果频率误差高于搜索和锁定阈值,则会激活粗略搜索以估计正确的频率。 只有当频率误差落在搜索和锁定阈值之间时,才能激活精细搜索。 通过适当地分配这两个阈值,可以提高诸如着色和频率误差之类的搜索性能以及输出分辨率。 数字频率合成器,可以在HDL级别设计,并作为目标单元库的一部分合成。