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    • 21. 发明授权
    • MIMO beamforming-based single carrier frequency division multiple access system
    • 基于MIMO波束成形的单载波频分多址系统
    • US08553521B2
    • 2013-10-08
    • US12377975
    • 2006-09-25
    • Guodong ZhangJung-Lin PanRobert Lind OlesenYingming Tsai
    • Guodong ZhangJung-Lin PanRobert Lind OlesenYingming Tsai
    • H04J11/00
    • H04B7/0417H04B7/0617H04B7/086H04L5/023H04L25/0248H04L27/2601H04L27/2614H04L27/2647
    • A multiple-input multiple-output (MIMO) beamforming-based single carrier frequency division multiple access (SC-FDMA) system is disclosed. At the transmitter, a fast Fourier transform (FFT) is performed on transmission data to generate frequency domain data. The frequency domain transmit data is mapped to assigned subcarriers. An inverse fast Fourier transform (IFFT) is performed on the transmit data mapped to the assigned subcarriers to generate time domain transmit data. The time domain transmit data is transmitted via antennas. At a receiver, an FFT is performed on the received data to generate frequency domain received data. Subcarrier demapping is performed to extract data mapped on the assigned subcarriers. A channel estimator generates a channel matrix which is decomposed into U, D and VH matrices. A channel distortion and interference between transmit and receive antennas are equalized based on the decomposed channel matrices to the extracted frequency domain received data.
    • 公开了一种基于多输入多输出(MIMO)波束成形的单载波频分多址(SC-FDMA)系统。 在发射机上,对传输数据进行快速傅里叶变换(FFT)以产生频域数据。 频域发射数据被映射到分配的子载波。 对映射到所分配的子载波的发送数据执行快速傅里叶逆变换(IFFT),以生成时域发送数据。 时域发送数据通过天线发送。 在接收机处,对接收到的数据执行FFT以产生频域接收的数据。 执行子载波解映射以提取映射在所分配的子载波上的数据。 信道估计器生成分解为U,D和VH矩阵的信道矩阵。 基于分解的信道矩阵到提取的频域接收数据,发送和接收天线之间的信道失真和干扰被均衡。
    • 23. 发明申请
    • METHOD AND APPARATUS FOR CONTROL OF ENHANCED DEDICATED CHANNEL TRANSMISSIONS
    • 用于控制增强专用信道传输的方法和装置
    • US20120257591A1
    • 2012-10-11
    • US13523306
    • 2012-06-14
    • Stephen E. TerryGuodong ZhangJung-Lin PanPeter S. Wang
    • Stephen E. TerryGuodong ZhangJung-Lin PanPeter S. Wang
    • H04W72/04
    • H04W72/0446H04W28/18H04W52/346H04W52/367H04W72/04H04W72/1226H04W72/14
    • A method and apparatus for controlling enhanced dedicated channel (E-DCH) transmissions are disclosed. An enhanced uplink medium access control (MAC-e/es) entity processes a received scheduling grant to calculate a serving grant. The MAC-e/es entity determines whether both a hybrid automatic repeat request (H-ARQ) process for scheduled data and scheduled data are available. If an H-ARQ process for scheduled data and scheduled data are available, the MAC-e/es entity determines whether a serving grant exists. The MAC-e/es entity calculates a remaining power based on maximum allowed power and restricts an E-DCH transport format combination (E-TFC) based on the remaining power. The MAC-e/es entity selects an E-TFC using the serving grant and generates a MAC-e protocol data unit. The MAC-e/es entity may process the received scheduled grant is at each transmission time interval or may store the received scheduled grant in a grant list until there is E-DCH data to transmit.
    • 公开了一种用于控制增强专用信道(E-DCH)传输的方法和装置。 增强的上行链路媒体接入控制(MAC-e / es)实体处理接收到的调度许可以计算服务授权。 MAC-e / es实体确定调度数据和调度数据的混合自动重传请求(H-ARQ)是否可用。 如果调度数据和调度数据的H-ARQ过程可用,则MAC-e / es实体确定是否存在服务授权。 MAC-e / es实体基于最大允许功率计算剩余功率,并且基于剩余功率限制E-DCH传输格式组合(E-TFC)。 MAC-e / es实体使用服务授权选择E-TFC,并生成MAC-e协议数据单元。 MAC-e / es实体可以在每个传输时间间隔处理接收到的调度许可,或者可以将接收到的调度许可存储在授权列表中,直到有E-DCH数据要发送。
    • 25. 发明授权
    • Method and apparatus for reducing the processing rate of a chip-level equalization receiver
    • 降低芯片级均衡接收机的处理速率的方法和装置
    • US07936807B2
    • 2011-05-03
    • US12535010
    • 2009-08-04
    • Jung-Lin Pan
    • Jung-Lin Pan
    • H04B1/00H04L1/02
    • H04B1/70757H04B1/707H04B1/7115H04B2201/70707H04L25/03038H04L2025/03375H04L2025/03477H04L2025/03617
    • A method and apparatus for reducing the processing rate when performing chip-level equalization (CLE) in a code division multiple access (CDMA) receiver which includes an equalizer filter. Signals received by at least one antenna of the receiver are sampled at M times the chip rate. Each sample stream is split into M sample data streams at the chip rate. Multipath combining is preferably performed on each split sample data stream. The sample data streams are then combined into one combined sample data stream at the chip rate. The equalizer filter performs equalization on the combined sample stream at the chip rate. Filter coefficients are adjusted by adding a correction term to the filter coefficients utilized by the equalizer filter for a previous iteration.
    • 一种用于在包括均衡器滤波器的码分多址(CDMA)接收机中执行码片级均衡(CLE)时降低处理速率的方法和装置。 由接收机的至少一个天线接收的信号以芯片速率的M倍采样。 每个样本流以码片速率被分成M个采样数据流。 优选对每个分割样本数据流执行多路径组合。 然后将样本数据流以码片速率组合成一个组合的采样数据流。 均衡器滤波器以码片速率对组合的采样流进行均衡。 通过将校正项加到由均衡器滤波器用于先前迭代的滤波器系数来调整滤波器系数。
    • 29. 发明授权
    • Data detection method and receiver
    • 数据检测方法和接收机
    • US07715305B2
    • 2010-05-11
    • US11370113
    • 2006-03-07
    • Jung-Lin PanAriela ZeiraParthapratim De
    • Jung-Lin PanAriela ZeiraParthapratim De
    • H04J11/00H04B7/216H04B1/00
    • H04B1/71052H04B1/71055
    • A method of recovering data for use in a receiver that simultaneously receives a plurality of code division multiple access data signals, each data signal experiencing a similar channel response. A combined signal over the shared spectrum in a time slot is received and sampled. The combined signal comprises the plurality of data signals. The sampled signal is used to estimate the similar channel response, and a channel response matrix is constructed. A channel correlation matrix is constructed based in part on the estimated channel response matrix. A fast Fourier transform (FFT) decomposition of a circulant matrix approximation of the channel correlation matrix, and the sampled data signals, are used to determine a spread data vector. The spread data vector is despread to recover data from the matrix.
    • 一种恢复用于同时接收多个码分多址数据信号的接收机中的数据的方法,每个数据信号经历类似的信道响应。 在时隙中的共享频谱上的组合信号被接收和采样。 组合信号包括多个数据信号。 采样信号用于估计类似的信道响应,并构建信道响应矩阵。 部分基于估计的信道响应矩阵构建信道相关矩阵。 使用信道相关矩阵和采样数据信号的循环矩阵近似的快速傅立叶变换(FFT)分解来确定扩展数据向量。 扩展数据向量被解扩以从矩阵中恢复数据。