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    • 5. 发明授权
    • Method and apparatus for channel state information feedback
    • 信道状态信息反馈的方法和装置
    • US09379800B2
    • 2016-06-28
    • US13380338
    • 2009-06-23
    • Dong LiKeying Wu
    • Dong LiKeying Wu
    • H04B7/06H04B7/02H04L5/00
    • H04B7/0626H04B7/024H04L5/0035
    • Embodiments of the present invention provide a method and apparatus for channel state information feedback. The method comprises: estimating channel state information from the mobile terminal to a serving cell and neighboring cells according to channel state information reference signals (CSI-Reference Signal) received from a plurality of coordinating cells; calculating a precoding matrix based on the estimated channel state information of the serving cell; calculating precoded channel state information respectively for the serving cell of the mobile terminal and neighboring cells in the coordinating cells according to the obtained precoding matrix; and feeding the precoded channel state information back to the serving cell of the mobile terminal. The above technical scheme can implement flexible and efficient channel status information feedback with low overhead, and enable multi-cell coordinated transmission to perform flexible and efficient precoding processing based on the feedback.
    • 本发明的实施例提供了一种用于信道状态信息反馈的方法和装置。 该方法包括:根据从多个协调小区接收的信道状态信息参考信号(CSI-参考信号),估计从移动终端到服务小区和相邻小区的信道状态信息; 基于所述服务小区的估计信道状态信息来计算预编码矩阵; 根据获得的预编码矩阵,分别为协调小区中的移动终端的服务小区和相邻小区分别计算预编码信道状态信息; 以及将预编码的信道状态信息反馈给移动终端的服务小区。 上述技术方案可以以低开销实现灵活高效的信道状态信息反馈,实现多小区协调传输,根据反馈进行灵活高效的预编码处理。
    • 8. 发明授权
    • Method and apparatus for capturing high dynamic range images using multi-frame interlaced exposure images
    • 使用多帧交错曝光图像捕获高动态范围图像的方法和装置
    • US08890986B2
    • 2014-11-18
    • US13170478
    • 2011-06-28
    • Scott SmithDong LiPeng Lin
    • Scott SmithDong LiPeng Lin
    • H04N5/235H04N3/14H04N5/355H04N5/353H04N5/232
    • H04N5/23254H04N5/2353H04N5/2355H04N5/3535H04N5/35554
    • An imager includes an array of pixels arranged in rows and a control circuit for sequentially capturing first and second image frames from the array of pixels. The control circuit is configured to sequentially capture first and second pairs of adjacent rows of pixels during first and second exposure times, respectively, when capturing the first image frame. The control circuit is also configured to sequentially capture first and second pairs of adjacent rows of pixels during second and first exposure times, respectively, when capturing the second image frame. The first exposure times during the first and second frames are of similar duration; and the second exposure times during the first and second frames are of similar duration. The control circuit is configured to detect motion of an object upon combining the first and second image frames and, then, correct for the motion of the object.
    • 成像器包括排列成行的像素阵列和用于从像素阵列顺序捕获第一和第二图像帧的控制电路。 控制电路被配置为在捕获第一图像帧时分别在第一和第二曝光时间期间顺序捕获第一和第二对相邻像素行对。 控制电路还被配置为在捕获第二图像帧时分别在第二和第一曝光时间期间顺序捕获第一和第二对相邻像素行。 在第一和第二帧期间的第一曝光时间具有相似的持续时间; 并且第一和第二帧期间的第二曝光时间具有相似的持续时间。 控制电路被配置为在组合第一和第二图像帧时检测对象的运动,然后校正对象的运动。
    • 9. 发明申请
    • METHOD OF AND APPARATUS FOR REDUCING PAPR IN FILTER-BANK MULTI-CARRIER SYSTEM
    • 滤波器多载波系统中减少PAPR的方法和装置
    • US20140192925A1
    • 2014-07-10
    • US14234729
    • 2012-07-13
    • Dong Li
    • Dong Li
    • H04L27/34H04L25/08H04L27/38H04L27/36
    • H04L27/3411H04L25/08H04L27/2614H04L27/2636H04L27/264H04L27/362H04L27/38
    • The invention relates to a method of reducing Peak-to-Average. Power Ratio in a transmitting device of a filter-hank multi-carrier system, which includes the steps of: performing constellation modulation (210) on data to be transmitted; performing K-point Discrete Fourier Transform (220) on a vector composed of K constellation symbols resulting from the constellation modulation: and performing Offset-Quadrature Amplitude Modulation (230) on a data vector resulting from the Discrete Fourier Transform, wherein the parameter K represents the number of subcarriers allocated for transmission of the data to be transmitted. With the solution proposed by the invention. PAPR of a signal can be significantly reduced without adding a large number of operations to thereby improve the efficiency of a power amplification circuit, to improve effective transmission, power and to alleviate nonlinear distortion of the signal during a power amplification.
    • 本发明涉及降低峰值平均值的方法。 功率比在滤波器汉克多载波系统的发射设备中,其包括以下步骤:对要发射的数据执行星座调制(210); 对由星座调制产生的K个星座符号构成的向量进行K点离散傅立叶变换(220),并对由离散傅里叶变换得到的数据向量执行偏移正交幅度调制(230),其中参数K表示 分配用于发送要发送的数据的子载波的数量。 利用本发明提出的解决方案。 信号的PAPR可以显着减少,而不需要增加大量的操作,从而提高功率放大电路的效率,从而提高功率放大期间信号的有效传输,功率和减轻非线性失真。