会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 41. 发明授权
    • Wireless MIMO transmitter with antenna and tone precoding blocks
    • 具有天线和音调预编码块的无线MIMO发射机
    • US08023589B2
    • 2011-09-20
    • US11199629
    • 2005-08-09
    • Eko OnggosanusiAnand G. Dabak
    • Eko OnggosanusiAnand G. Dabak
    • H04L27/00
    • H04B7/0456H04B7/0417H04B7/0619H04L5/023H04L25/0206H04L27/2608
    • Various wireless precoding systems and methods are presented. In some embodiments, a wireless transmitter comprises an antenna precoding block, a transform block, and multiple transmit antennas. The antenna precoding block receives frequency coefficients from multiple data streams and distributes the frequency coefficients across multiple transmit signals in accordance with frequency-dependent matrices. The transform block transforms the precoded frequency coefficients into multiple time domain transmit signals to be transmitted by the multiple antennas. The frequency coefficients from multiple data streams may be partitioned into tone groups, and all the frequency coefficients from a given tone group may be redistributed in accordance with a single matrix for that tone group. In some implementations, the frequency coefficients within a tone group for a given data stream may also be precoded. In some alternative embodiments, tone group precoding may be employed in a single channel system.
    • 提出了各种无线预编码系统和方法。 在一些实施例中,无线发射机包括天线预编码块,变换块和多个发射天线。 天线预编码块从多个数据流接收频率系数,并根据频率依赖矩阵在多个发射信号之间分配频率系数。 变换块将预编码的频率系数转换成由多个天线发射的多个时域发射信号。 来自多个数据流的频率系数可以被划分为音调组,并且来自给定音调组的所有频率系数可以根据该音调组的单个矩阵重新分配。 在一些实现中,给定数据流的音调组内的频率系数也可以被预编码。 在一些替代实施例中,音调组预编码可以用于单个信道系统中。
    • 43. 发明申请
    • SIX TRANSMIT ANTENNA CODEBOOK DESIGN
    • 六发天线编码设计
    • US20120269290A1
    • 2012-10-25
    • US13455786
    • 2012-04-25
    • Eko OnggosanusiRunhua Chen
    • Eko OnggosanusiRunhua Chen
    • H04L25/49
    • H04L25/03343H04L2025/03426
    • A method of wireless data transmission includes a base station having six antennas and at least one user equipment. The base station forms at least one layer of data stream including modulated symbols, precodes the at least one layer of data stream via multiplication with consecutive first and second precoding matrices and transmit the precoded data stream to the at least one user equipment via the six antennas. The first precoding matrix W1 is a block diagonal matrix formed by two identical 3 by Nb matrices, where Nb is the number of distinct Discrete Fourier Transform vectors. The second precoding matrix W2 introduces a phase shift between the two 3 by Nb matrices and selects a column subset from the first precoding matrix.
    • 无线数据传输的方法包括具有六个天线和至少一个用户设备的基站。 基站形成包括调制符号的至少一层数据流,经由与连续的第一和第二预编码矩阵相乘对至少一层数据流进行预编码,并经由六个天线将预编码的数据流发送到至少一个用户设备 。 第一预编码矩阵W1是由两个相同的3个Nb矩阵形成的块对角矩阵,其中Nb是不同离散傅立叶变换向量的数量。 第二预编码矩阵W2在两个3乘Nb矩阵之间引入相移,并从第一预编码矩阵中选择列子集。
    • 44. 发明授权
    • Frequency domain equalization
    • 频域均衡
    • US07388907B2
    • 2008-06-17
    • US11184680
    • 2005-07-19
    • Anand G. DabakEko Onggosanusi
    • Anand G. DabakEko Onggosanusi
    • H04B1/00H03H7/30
    • H04L25/03159H04L2025/03375H04L2025/03426H04L2025/03522
    • A radio receiver 102 is provided. The radio receiver 102 comprises one or more data Fast Fourier Transformers, each data Fast Fourier Transformer operable to perform a Fast Fourier Transform on an input data block, one or more impulse response Fast Fourier Transformers, each impulse response Fast Fourier Transformer operable to perform a Fast Fourier Transform on a channel impulse response, one or more multiplier components operable to multiply a term of the output of one of the data Fast Fourier Transformers by a term of the output of one of the impulse response Fast Fourier Transformers, and one or more Inverse Fast Fourier Transformers, each Inverse Fast Fourier Transformer operable to perform an Inverse Fast Fourier Transform based on an output of one or more of the multipliers.
    • 提供无线电接收机102。 无线电接收器102包括一个或多个数据快速傅立叶变换器,每个数据快速傅立叶变换器可操作以对输入数据块执行快速傅里叶变换,一个或多个脉冲响应快速傅立叶变换器,每个脉冲响应快速傅立叶变换器可操作以执行 对信道脉冲响应的快速傅立叶变换,一个或多个乘法器组件,可操作以将数据快速傅里叶变换器之一的输出的项乘以脉冲响应快速傅立叶变换器之一的输出项,以及一个或多个 快速傅里叶逆变换器,每个快速傅里叶逆变换器可操作以基于一个或多个乘法器的输出执行快速傅立叶逆变换。