Low bias estimation of small signal-to-noise ratio
    71.
    发明授权
    Low bias estimation of small signal-to-noise ratio 失效
    小信噪比的低偏估计

    公开(公告)号:US07590172B2

    公开(公告)日:2009-09-15

    申请号:US12060541

    申请日:2008-04-01

    CPC classification number: H04L1/20 H04B17/336

    Abstract: A user equipment includes an estimator. The estimator is configured to select a first estimate of a signal-to-noise (SNR) ratio, calculate a first amplitude and first noise variance, calculate a second amplitude and a second noise variance, calculate a second SNR, calculate a resolution value, adjust the first SNR, and perform estimation iterations until the resolution value is equal to a predetermined value.

    Abstract translation: 用户设备包括估计器。 估计器被配置为选择信噪比(SNR)比率的第一估计,计算第一幅度和第一噪声方差,计算第二幅度和第二噪声方差,计算第二SNR,计算分辨率值, 调整第一SNR,并执行估计迭代,直到分辨率值等于预定值。

    Pen
    74.
    外观设计
    Pen 有权

    公开(公告)号:USD590878S1

    公开(公告)日:2009-04-21

    申请号:US29302810

    申请日:2008-01-24

    Applicant: Bin Li

    Designer: Bin Li

    REDUCED COMPLEXITY SLIDING WINDOW BASED EQUALIZER
    75.
    发明申请
    REDUCED COMPLEXITY SLIDING WINDOW BASED EQUALIZER 失效
    降低复杂度滑动窗口均衡器

    公开(公告)号:US20080298523A1

    公开(公告)日:2008-12-04

    申请号:US12191702

    申请日:2008-08-14

    Abstract: Data estimation is performed in a wireless communication system using both oversampling and multiple reception antennas. A receive vector is produced for each antenna at a sampling interval which is a multiple of the chip rate of the received signal. A channel response matrix is produced for each antenna at a preferred multiple of the sampling rate. Each receive vector is processed using a sliding window based approach, where a plurality of successive windows are processed. For each window, a combined circulant channel response matrix is produced using the channel response matrices. Using the combined circulant channel response matrix and a combined received vector comprising each received vector in a discrete Fourier transform based approach to estimate a data vector corresponding to that window; and combining the data vector estimated in each window to form a combined data vector.

    Abstract translation: 在使用过采样和多个接收天线的无线通信系统中执行数据估计。 以每个天线的采样间隔产生接收矢量,该采样间隔是接收信号的码片速率的倍数。 以采样率的优选倍数为每个天线产生信道响应矩阵。 使用基于滑动窗口的方法处理每个接收向量,其中处理多个连续的窗口。 对于每个窗口,使用信道响应矩阵来产生组合循环信道响应矩阵。 使用组合的循环信道响应矩阵和包括基于离散傅立叶变换的方法中的每个接收向量的组合接收向量来估计对应于该窗口的数据矢量; 并组合在每个窗口中估计的数据矢量以形成组合的数据向量。

    Pen
    76.
    外观设计
    Pen 有权

    公开(公告)号:USD580977S1

    公开(公告)日:2008-11-18

    申请号:US29282456

    申请日:2007-07-20

    Applicant: Bin Li

    Designer: Bin Li

    Group Based Communication Method, System and Client
    77.
    发明申请
    Group Based Communication Method, System and Client 有权
    基于组的通信方法,系统和客户端

    公开(公告)号:US20080195706A1

    公开(公告)日:2008-08-14

    申请号:US11916790

    申请日:2006-06-09

    Abstract: The present invention discloses a group based communication method, including: initiating, by a communication initiating client, a connection request containing a recipient identifier to a backstage server; forwarding, by the backstage server, the connection request to a communication recipient client corresponding to the recipient identifier; and establishing, by the communication recipient client, a short connection channel or long connection channel to the communication initiating client according to a type of the connection request and performing a communication supported by the short connection channel or the long connection channel with the communication initiating client. The present invention also discloses a group based communication system and client. The method, system and client provided by the present invention brings out much richer communication and interaction between communicating users, who not only can transmit text data, but also can transmit file and audio/video data.

    Abstract translation: 本发明公开了一种基于组的通信方法,包括:由通信发起客户端发起包含接收者标识符的连接请求到后台服务器; 由所述后台服务器将与所述接收者标识符相对应的所述连接请求转发到通信接收方客户端; 以及根据所述连接请求的类型,由所述通信接收者客户端向所述通信发起客户端建立短连接信道或长连接信道,并且执行所述短连接信道支持的通信或所述长连接信道与所述通信发起客户端 。 本发明还公开了一种基于组的通信系统和客户机。 本发明提供的方法,系统和客户端在通信用户之间提供更加丰富的通信和交互,用户不仅可以传送文本数据,而且可以传送文件和音频/视频数据。

    LOW BIAS ESTIMATION OF SMALL SIGNAL-TO-NOISE RATIO
    78.
    发明申请
    LOW BIAS ESTIMATION OF SMALL SIGNAL-TO-NOISE RATIO 失效
    小信号噪声比的低偏估计

    公开(公告)号:US20080181290A1

    公开(公告)日:2008-07-31

    申请号:US12060541

    申请日:2008-04-01

    CPC classification number: H04L1/20 H04B17/336

    Abstract: A user equipment includes an estimator. The estimator is configured to select a first estimate of a signal-to-noise (SNR) ratio, calculate a first amplitude and first noise variance, calculate a second amplitude and a second noise variance, calculate a second SNR, calculate a resolution value, adjust the first SNR, and perform estimation iterations until the resolution value is equal to a predetermined value.

    Abstract translation: 用户设备包括估计器。 估计器被配置为选择信噪比(SNR)比率的第一估计,计算第一幅度和第一噪声方差,计算第二幅度和第二噪声方差,计算第二SNR,计算分辨率值, 调整第一SNR,并执行估计迭代,直到分辨率值等于预定值。

    APPROXIMATE CHOLESKY DECOMPOSITION-BASED BLOCK LINEAR EQUALIZER
    79.
    发明申请
    APPROXIMATE CHOLESKY DECOMPOSITION-BASED BLOCK LINEAR EQUALIZER 审中-公开
    基于矩阵分解的块状线性均衡器

    公开(公告)号:US20070076791A1

    公开(公告)日:2007-04-05

    申请号:US11427217

    申请日:2006-06-28

    CPC classification number: H04L25/03012 H04L25/0206 H04L2025/03605

    Abstract: A block linear equalizer (BLE) using an approximate Cholesky decomposition is disclosed. The BLE includes channel estimators, a channel monitor unit, a noise power estimator, a parameter selection unit and an approximate Cholesky processor. The channel estimator generates a channel estimate vector from received samples. The channel monitor unit generates a first channel monitor signal for a truncated channel estimate vector and a second channel monitor signal. The noise power estimator estimates a noise power of the received samples. The parameter selection unit selects parameters for approximate Cholesky decomposition based on the first and second channel monitor signals. The approximate Cholesky processor performs block linear equalization on the received samples based on approximate Cholesky decomposition.

    Abstract translation: 公开了使用近似Cholesky分解的块线性均衡器(BLE)。 BLE包括信道估计器,信道监视器单元,噪声功率估计器,参数选择单元和近似的Cholesky处理器。 信道估计器从接收样本生成信道估计向量。 信道监视器单元产生用于截断的信道估计向量和第二信道监视信号的第一信道监视信号。 噪声功率估计器估计接收样本的噪声功率。 参数选择单元基于第一和第二通道监视信号选择近似Cholesky分解的参数。 大约Cholesky处理器基于近似Cholesky分解对接收到的样本执行块线性均衡。

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