Receiving apparatus in OFDM system and receiving method
    1.
    发明授权
    Receiving apparatus in OFDM system and receiving method 有权
    OFDM系统接收装置及接收方法

    公开(公告)号:US08811543B2

    公开(公告)日:2014-08-19

    申请号:US13588361

    申请日:2012-08-17

    IPC分类号: H03D1/00 H04L27/06

    摘要: Disclosed are a receiving apparatus and a receiving method. More particularly, disclosed are a receiving apparatus and a receiving method in an OFDM system. The receiving apparatus in the OFDM system includes a receiver for receiving wireless signals transmitted through wireless channels, a transformer for transforming the wireless signals into signals of a frequency domain, an inverse transformer for inversely transforming reference signals into signals of a time domain based on a number of reference signals included in the signals of the frequency domain and an arrangement interval of the reference signals included in the signals of the frequency domain, and a determiner for determining a delay spread based on the inversely transformed signals of the time domain.

    摘要翻译: 公开了一种接收装置和接收方法。 更具体地,公开了OFDM系统中的接收装置和接收方法。 OFDM系统中的接收装置包括用于接收通过无线信道发送的无线信号的接收机,用于将无线信号变换为频域的信号的变压器,用于将参考信号逆变换为时域信号的逆变换器,其基于 包括在频域的信号中的参考信号的数量和包括在频域的信号中的参考信号的布置间隔,以及用于基于时域的逆变换信号确定延迟扩展的确定器。

    Log likelihood ratio calculation method, transmit signal detection method, and receiver
    2.
    发明授权
    Log likelihood ratio calculation method, transmit signal detection method, and receiver 有权
    对数似然比计算方法,发射信号检测方法和接收机

    公开(公告)号:US08040980B2

    公开(公告)日:2011-10-18

    申请号:US12142600

    申请日:2008-06-19

    IPC分类号: H04L27/06 H03K9/00 H04L27/00

    摘要: The present invention relates to a log-likelihood ratio calculation method, a transmitting signal detection method, and a receiver. The present invention estimates a channel on the basis of the received signal and rearranges a plurality of layers. Further, at the time of rearrangement of the layers, a symbol of a layer having the lowest reliability is considered for every constellation dot, and the successive interference for the remaining layers is removed corresponding to the constellation dots of the layer having the lowest reliability to set the transmitting symbol candidate vector. Furthermore, a log-likelihood ratio for every bit of the plurality of layers is calculated using the transmitting symbol candidate vector to decode the channel.

    摘要翻译: 本发明涉及对数似然比计算方法,发送信号检测方法和接收机。 本发明基于接收到的信号来估计信道并重排多个层。 此外,在层的重排时,对于每个星座点考虑具有最低可靠性的层的符号,并且对应于具有最低可靠性的层的星座点去除对剩余层的连续干扰, 设置发送符号候选向量。 此外,使用发送符号候选向量计算多个层中的每一比特的对数似然比,以解码该信道。

    Method of selecting candidate vector and method of detecting transmission symbol
    4.
    发明授权
    Method of selecting candidate vector and method of detecting transmission symbol 有权
    选择候选矢量的方法和检测传输符号的方法

    公开(公告)号:US08054909B2

    公开(公告)日:2011-11-08

    申请号:US12141539

    申请日:2008-06-18

    IPC分类号: H04L27/00 G06Q30/00

    摘要: The present invention relates to a method of detecting a candidate vector and a method of detecting a transmission symbol using the same. According to an embodiment of the present invention, in a multiple input multiple output (MIMO) system using spatial multiplexing (SM), a receiver selects candidate vectors corresponding to a layer located at a last row among a plurality of rearranged layers, and sequentially ranks constellation dots of a next layer for each of the selected candidate vectors. Then, a plurality of arbitrary constellation dots are selected from the ranked constellation dots, accumulated costs of the arbitrary constellation dots are calculated, and a candidate vector is selected in correspondence with a constellation dot having a minimal accumulated cost. Then, a new arbitrary constellation dot is selected in place of the constellation dot selected as the candidate vector, an accumulated cost of the selected arbitrary constellation dot is compared with accumulated costs of the other arbitrary constellation dots, and another candidate vector is selected.

    摘要翻译: 本发明涉及检测候选向量的方法和使用其的发送符号的检测方法。 根据本发明的实施例,在使用空间复用(SM)的多输入多输出(MIMO)系统中,接收机选择与多个重排层中位于最后一行的层相对应的候选向量,并且顺次排列 每个所选候选向量的下一层的星座点。 然后,从分级星座点中选择多个任意星座点,计算任意星座点的累积成本,并且与具有最小累积成本的星座点对应地选择候选矢量。 然后,代替选择为候选矢量的星座点,选择新的任意星座点,将所选择的任意星座点的累积成本与其他任意星座点的累积成本进行比较,并选择另一候选矢量。

    Methods And Kits For In Situ Measurement of Enzyme Activity and Amount Using Single Measurement System
    5.
    发明申请
    Methods And Kits For In Situ Measurement of Enzyme Activity and Amount Using Single Measurement System 审中-公开
    使用单一测量系统原位测量酶活性和量的方法和试剂盒

    公开(公告)号:US20090286223A1

    公开(公告)日:2009-11-19

    申请号:US12302418

    申请日:2006-05-30

    IPC分类号: C12Q1/70 G01N33/53

    摘要: Disclosed are methods and kits for measuring in situ the activity and amount of an enzyme in a sample using a single measurement system. The method includes the steps of: (a) contacting a sample to a capturing agent having the capacity to bind to the enzyme to be analyzed and immobilized on a solid matrix; (b) measuring the activity of the enzyme captured by the capturing agent; (c) contacting a detection antibody specific to the enzyme captured by the capturing agent; and (d) detecting an antigen-antibody complex formed in the step (c). There is no need for separate measurement system to measure the activity and amount of an enzyme, as well as the above methods and kits permit to measure the precise activity and amount of an enzyme simultaneously because the measurement of enzyme activity and amount is carried out in a single and same measurement system as to the same sample in almost simultaneous manner.

    摘要翻译: 公开了用于使用单个测量系统原位测量样品中的酶的活性和量的方法和试剂盒。 该方法包括以下步骤:(a)将样品与能够结合待分析和固定在固体基质上的酶的捕获剂接触; (b)测量由捕获剂捕获的酶的活性; (c)使由捕获剂捕获的酶特异的检测抗体接触; 和(d)检测步骤(c)中形成的抗原 - 抗体复合物。 不需要单独的测量系统来测量酶的活性和量,以及上述方法和试剂盒允许同时测量酶的精确活性和量,因为酶活性和量的测量在 以同样的方式对相同样品进行单一和相同的测量系统。

    Row-vector norm comparison method and row-vector norm comparison apparatus for inverse matrix
    7.
    发明授权
    Row-vector norm comparison method and row-vector norm comparison apparatus for inverse matrix 有权
    行向量范数比较法和反向矩阵的行向量范数比较装置

    公开(公告)号:US08521799B2

    公开(公告)日:2013-08-27

    申请号:US12165209

    申请日:2008-06-30

    IPC分类号: G06F7/32 G06F7/38

    CPC分类号: G06F17/16

    摘要: Disclosed are a row-vector norm comparison method and a row-vector norm comparison apparatus for an inverse matrix. A row-vector norm comparison apparatus includes: an input matrix processing module that receives and combines constituent elements of a matrix; a cofactor operation module that multiplexes the combination result of the constituent elements to calculate factors constituting an adjoint matrix; a square calculation module that squares the calculated factors; a summation module that selects a predetermined number of factors among the squared factors and sums the selected factors to calculate the norms of row vectors in an inverse matrix; and a norm comparison module that outputs a comparison result of the calculated norms of the row vectors. A row-vector norm comparison method includes: combining constituent elements of a matrix to generates a plurality of combination results of the constituent elements; multiplexing the combination results to calculate factors constituting an adjoint matrix of the matrix; squaring the calculated factors and selectively summing the squared factors; and calculating the norms of row vectors in an inverse matrix and comparing the calculated norms of the row vectors. With this configuration, row-vector norm comparison for an inverse matrix can be performed with a design structure. Therefore, it is not necessary to use an existing complex operation method. In addition, low power consumption of the multiple antenna system can be achieved, and efficiency of the design structure can be improved.

    摘要翻译: 公开了用于逆矩阵的行向量范数比较方法和行向量范数比较装置。 行向量范数比较装置包括:输入矩阵处理模块,其接收并组合矩阵的组成元素; 辅助因子操作模块,其将所述组成元素的组合结果复用以计算构成伴随矩阵的因子; 平方计算模块,对计算的因子进行平方; 求和模块,其选择平方因子中的预定数量的因子,并且对所选择的因子进行求和以计算逆向矩阵中的行向量的范数; 以及范数比较模块,其输出所计算的行向量范围的比较结果。 行向量范数比较方法包括:组合矩阵的组成元素以生成组成元素的多个组合结果; 将组合结果复用以计算构成矩阵的伴随矩阵的因子; 平均计算因子并选择性求和平方因子; 以及计算逆矩阵中的行向量的范数并比较所计算的行向量的范数。 利用这种配置,可以用设计结构来执行逆矩阵的行向量范数比较。 因此,不需要使用现有的复杂操作方法。 此外,可以实现多天线系统的低功耗,并且可以提高设计结构的效率。

    Apparatus and method for signal detection using log likelihood ratio
    8.
    发明授权
    Apparatus and method for signal detection using log likelihood ratio 有权
    使用对数似然比进行信号检测的装置和方法

    公开(公告)号:US08135087B2

    公开(公告)日:2012-03-13

    申请号:US12629376

    申请日:2009-12-02

    IPC分类号: H04B7/02 H04L5/12

    摘要: A method for signal detection using a log likelihood ratio in a multi-input multi-output communication system includes reconfiguring the signals received through the reception antennas on the basis of channel characteristics and acquiring candidate groups for each transmission symbol by acquiring a signal constellation of one quadrant with respect to signals generatable for each transmission symbol and signal constellations for the remaining quadrants on the basis of the reconfigured signals.

    摘要翻译: 一种使用多输入多输出通信系统中的对数似然比的信号检测方法,包括基于信道特性重新配置通过接收天线接收的信号,并通过获取一个信号星座来获取每个发送符号的候选组 基于重新配置的信号,对于每个发送符号可产生的信号和剩余象限的信号星座的象限。