-
1.发明申请公开(公告)号：US20090109947A1
公开(公告)日：2009-04-30
申请号：US11932486
申请日：2007-10-31
CPC分类号： H04L25/03159 , H04L25/0204 , H04L25/0232 , H04L25/0244 , H04L2025/03522 , H04L2025/03624
摘要： A technique of operating a wireless communication device includes receiving, at a first wireless communication device, respective signals transmitted from multiple second wireless communication devices. Respective channel matrix blocks for each block of the received respective signals are then generated. Finally, respective channel equalizer matrix blocks for each of the respective channel matrix blocks are generated. At least one of the respective channel equalizer matrix blocks is generated without performing a matrix inversion operation on an associated one of the respective channel matrix blocks.
摘要翻译： 操作无线通信设备的技术包括在第一无线通信设备处接收从多个第二无线通信设备发送的相应信号。 然后生成所接收的相应信号的每个块的相应信道矩阵块。 最后，生成各个信道矩阵块的各个信道均衡器矩阵块。 生成各个信道均衡器矩阵块中的至少一个，而不对相应的各个信道矩阵块之一执行矩阵求逆运算。
-
2.发明授权公开(公告)号：US06839381B1
公开(公告)日：2005-01-04
申请号：US09481858
申请日：2000-01-12
CPC分类号： H04L27/0014 , H04B2201/70701 , H04L2027/003 , H04L2027/0067
摘要： A method of channel estimation in a Code Division Multiple Access (CDMA) transmission system that incorporates Pilot Symbol Assisted Modulation (PSAM) using an iterative coherent detection method to estimate the phase and frequency of the received pilot symbols. Arctangent calculations are used to estimate phase and frequency. An iterative least squares linearization identifies and corrects values of the arctangent associated with an incorrect 2π alias, which arise due to the multiple-valued nature of the arctangent function. An alternative non-iterative least squares linearization also corrects the arctangent values, based on a calculation involving stored values of the pilot symbols.
摘要翻译： 一种使用迭代相干检测方法并入引导符号辅助调制（PSAM）的码分多址（CDMA）传输系统中的信道估计方法来估计接收的导频符号的相位和频率。 反正切计算用于估计相位和频率。 迭代最小二乘线性化标识并校正与由于反正切函数的多值性质而产生的不正确的2pi别名相关联的反正切值。 基于涉及导频符号的存储值的计算，替代的非迭代最小二乘法线性化还校正反正切值。
-
3.发明授权公开(公告)号：US08169978B2
公开(公告)日：2012-05-01
申请号：US11932486
申请日：2007-10-31
IPC分类号： H04B7/216
CPC分类号： H04L25/03159 , H04L25/0204 , H04L25/0232 , H04L25/0244 , H04L2025/03522 , H04L2025/03624
摘要： A technique of operating a wireless communication device includes receiving, at a first wireless communication device, respective signals transmitted from multiple second wireless communication devices. Respective channel matrix blocks for each block of the received respective signals are then generated. Finally, respective channel equalizer matrix blocks for each of the respective channel matrix blocks are generated. At least one of the respective channel equalizer matrix blocks is generated without performing a matrix inversion operation on an associated one of the respective channel matrix blocks.
摘要翻译： 操作无线通信设备的技术包括在第一无线通信设备处接收从多个第二无线通信设备发送的相应信号。 然后生成所接收的相应信号的每个块的相应信道矩阵块。 最后，生成各个信道矩阵块的各个信道均衡器矩阵块。 生成各个信道均衡器矩阵块中的至少一个，而不对相应的一个相应的信道矩阵块执行矩阵求逆运算。
-
公开(公告)号：US20080072010A1
公开(公告)日：2008-03-20
申请号：US11522634
申请日：2006-09-18
申请人： Chengke Sheng
发明人： Chengke Sheng
IPC分类号： G06F15/00
CPC分类号： G06F9/02 , G06F9/30032 , G06F9/30036 , G06F9/3885
摘要： A system and method for performing vector arithmetic is disclosed. The method includes loading two operand vectors, each composed of a number of vector elements, into two storage locations. A selected arithmetic operation is performed on the operand vectors to produce a result vector having the number of vector elements. Each vector element of the result vector is associated with an arithmetic logic cell that has a first input that can receive any vector element from the first vector and a second input that can receive any vector element from the second vector. Accordingly each vector element of the result vector is a function of any two individual vector elements of the operand vectors. By applying the operand vector elements to the appropriate arithmetic logic cells, and by selecting the appropriate arithmetic operation, complex vector operations can be performed efficiently.
摘要翻译： 公开了一种用于执行矢量运算的系统和方法。 该方法包括将由多个向量元素组成的两个操作数向量加载到两个存储位置。 对操作数向量执行选择的算术运算，以产生具有向量元素数的结果向量。 结果向量的每个向量元素与具有可从第一向量接收任何向量元素的第一输入和可从第二向量接收任何向量元素的第二输入的算术逻辑单元相关联。 因此，结果向量的每个向量元素是操作数向量的任何两个单独的向量元素的函数。 通过将操作数向量元素应用于适当的算术逻辑单元，并且通过选择适当的算术运算，可以有效地执行复矢量运算。
-
5.发明授权Method and apparatus for determining whether a received signal includes a desired signal 有权用于确定接收到的信号是否包括期望信号的方法和装置公开(公告)号：US07035319B2
公开(公告)日：2006-04-25
申请号：US10210348
申请日：2002-07-31
申请人： Chris Thron , Chengke Sheng , Ivra Leon Turner
发明人： Chris Thron , Chengke Sheng , Ivra Leon Turner
IPC分类号： H04B1/707
CPC分类号： H04B1/7115 , H04B7/0842 , H04B7/0845 , H04B7/086 , H04B7/0891
摘要： A method of and data processing system for determining whether a received signal in a Code Division Multiple Access system that uses an antenna array includes a desired signal with a predetermined timing offset, the method including correlating 607 the received signal with a spreading code having the predetermined timing offset and corresponding to the desired signal at each element of the antenna array to provide correlations; determining 613 a power distribution, such as a DFT, corresponding to the correlations that is a function of a direction of arrival of the received signal; comparing 614 a magnitude of the power distribution at a first direction of arrival to a threshold that has a value that varies with the direction of arrival; and when the threshold is satisfied, determining 619 or indicating that the desired signal is likely present at the first direction of arrival.
摘要翻译： 一种用于确定使用天线阵列的码分多址系统中的接收信号是否包括具有预定定时偏移的期望信号的方法和数据处理系统，所述方法包括将接收信号与具有预定的 定时偏移并对应于天线阵列的每个元件处的期望信号以提供相关性; 确定613对应于作为接收信号的到达方向的函数的相关性的功率分配，例如DFT; 将第一到达方向上的功率分布的大小614与具有随着到达方向变化的值的阈值进行比较; 并且当满足阈值时，确定619或指示期望信号可能存在于第一到达方向。
-
公开(公告)号：US07788471B2
公开(公告)日：2010-08-31
申请号：US11522634
申请日：2006-09-18
申请人： Chengke Sheng
发明人： Chengke Sheng
CPC分类号： G06F9/02 , G06F9/30032 , G06F9/30036 , G06F9/3885
摘要： A system and method for performing vector arithmetic is disclosed. The method includes loading two operand vectors, each composed of a number of vector elements, into two storage locations. A selected arithmetic operation is performed on the operand vectors to produce a result vector having the number of vector elements. Each vector element of the result vector is associated with an arithmetic logic cell that has a first input that can receive any vector element from the first vector and a second input that can receive any vector element from the second vector. Accordingly each vector element of the result vector is a function of any two individual vector elements of the operand vectors. By applying the operand vector elements to the appropriate arithmetic logic cells, and by selecting the appropriate arithmetic operation, complex vector operations can be performed efficiently.
摘要翻译： 公开了一种用于执行矢量运算的系统和方法。 该方法包括将由多个向量元素组成的两个操作数向量加载到两个存储位置。 对操作数向量执行选择的算术运算，以产生具有向量元素数的结果向量。 结果向量的每个向量元素与具有可从第一向量接收任何向量元素的第一输入和可从第二向量接收任何向量元素的第二输入的算术逻辑单元相关联。 因此，结果向量的每个向量元素是操作数向量的任何两个单独的向量元素的函数。 通过将操作数向量元素应用于适当的算术逻辑单元，并且通过选择适当的算术运算，可以有效地执行复矢量运算。
-
7.发明授权Chip rate base band receiver processor which receives digital information containing symbol information 有权芯片速率基带接收机处理器，其接收包含符号信息的数字信息公开(公告)号：US07123647B1
公开(公告)日：2006-10-17
申请号：US09438288
申请日：1999-11-12
申请人： Chengke Sheng
发明人： Chengke Sheng
IPC分类号： H04B1/69
CPC分类号： H04B1/7115 , H04B1/70754 , H04B1/709
摘要： An X-Y, base-band receiver for code-division multiple accessing (“CDMA”) is used at both base station and mobile station. The signal transmitted from a transmitter carries serial information symbols. Signals from all transmitters pass through a multi-path fading channel before they are received by the X-Y receiver. There is more than one instance of each symbol. The X-Y receiver searches for all instances of each symbol and combines all instances.
摘要翻译： 在基站和移动台都使用用于码分多址（“CDMA”）的X-Y基带接收机。 从发射机发送的信号携带串行信息符号。 来自所有发射机的信号在被X-Y接收机接收之前通过多径衰落信道。 每个符号有多个实例。 X-Y接收器搜索每个符号的所有实例并组合所有实例。
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.016 秒)
