专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20100061256A1 Methods of Determining Whether a Frequency Channel is Available for Data Transmission for a Communication Device 审中-公开
标题翻译：确定频道是否可用于通信设备的数据传输的方法
公开(公告)号：US20100061256A1
公开(公告)日：2010-03-11
申请号：US12302137
申请日：2007-05-25
申请人： Chee Wei Ang , Peng Yong Kong , Anh Tuan Hoang , Ying-Chang Liang , Haiguang Wang
发明人： Chee Wei Ang , Peng Yong Kong , Anh Tuan Hoang , Ying-Chang Liang , Haiguang Wang
IPC分类号： H04L12/26 , H04J1/00
CPC分类号： H04W16/14 , H04W72/082 , H04W72/1257
摘要： A method of determining whether a frequency channel is available for data transmission for a communication device is provided. The method provided comprises dynamically selecting a time interval for determining whether the frequency channel is available for data transmission for the communication device. The method provided further comprises determining whether the frequency channel is available for data transmission for the communication device, during the time interval selected.
摘要翻译：提供了确定频道是否可用于通信设备的数据传输的方法。所提供的方法包括动态选择用于确定频道是否可用于通信设备的数据传输的时间间隔。所提供的方法还包括在所选择的时间间隔期间确定频道是否可用于通信设备的数据传输。

2. 发明授权

US08619920B2 Two-dimensional code spreading for interleaved FDMA system 失效
标题翻译：用于交错FDMA系统的二维码扩展
公开(公告)号：US08619920B2
公开(公告)日：2013-12-31
申请号：US13127485
申请日：2008-11-05
申请人： Hiroyuki Atarashi , Mamoru Sawahashi , Francois Po Shin Chin , Zhongding Lei , Xiaoming Peng , Ying-Chang Liang
发明人： Hiroyuki Atarashi , Mamoru Sawahashi , Francois Po Shin Chin , Zhongding Lei , Xiaoming Peng , Ying-Chang Liang
IPC分类号： H04L27/06
CPC分类号： H04J11/005 , H04B1/692
摘要： A transmitter comprises a first spreading unit configured to multiply each of multiple data symbols with a first spreading code sequence of a first spreading factor; a compression and repetition unit configured to compress output signals of the first spreading unit in time domain and repeat the compressed signal L times (where L is a natural number greater than or equal to 2); a phase modulation unit configured to multiply the compressed and repeated signal with a user dependent phase and output a data block consisting of L sub-blocks; a second spreading unit configured to replicate the data block according to a second spreading factor and multiply each set of the replicated sub-blocks with a second spreading code sequence of the second spreading factor to produce a two-dimensionally spread signal; and a wireless transmission unit configured to transmit the two-dimensionally spread signal using a single-carrier transmission scheme.
摘要翻译：发射机包括：第一扩展单元，被配置为将多个数据符号中的每一个乘以第一扩频因子的第一扩展码序列; 压缩和重复单元，被配置为在时域中压缩第一扩展单元的输出信号，并重复压缩信号L次（其中L是大于或等于2的自然数）; 相位调制单元，被配置为将压缩和重复信号与用户相关的相位相乘，并输出由L个子块组成的数据块; 第二扩展单元，被配置为根据第二扩展因子复制数据块，并且将每组复制子块与第二扩展因子的第二扩展码序列相乘以产生二维扩展信号; 以及无线传输单元，被配置为使用单载波传输方案来发送二维扩展信号。

3. 发明授权

US08433009B2 Method for determining as to whether a received signal includes a data signal 有权
标题翻译：用于确定接收到的信号是否包括数据信号的方法
公开(公告)号：US08433009B2
公开(公告)日：2013-04-30
申请号：US12600164
申请日：2008-05-07
申请人： Yonghong Zeng , Choo Leng Koh , Ying-Chang Liang
发明人： Yonghong Zeng , Choo Leng Koh , Ying-Chang Liang
IPC分类号： H04B1/00
CPC分类号： H04L27/0006
摘要： A method of determining as to whether a received signal includes a data signal is provided. The method provided includes determining a first value based on a cyclic auto-correlation of the received signal and determining a second value based on the cyclic auto-correlation of the received signal. The method provided further includes determining as to whether a received signal includes a data signal based on a comparison of the first value and the second value.
摘要翻译：提供一种确定接收信号是否包括数据信号的方法。所提供的方法包括基于接收信号的循环自相关确定第一值，并且基于接收信号的循环自相关确定第二值。所提供的方法还包括基于第一值和第二值的比较来确定接收到的信号是否包括数据信号。

4. 发明申请

US20110249776A1 METHOD FOR DETERMINING AS TO WHETHER A RECEIVED SIGNAL INCLUDES A DATA SIGNAL 有权
标题翻译：用于确定接收到的信号包括数据信号的方法
公开(公告)号：US20110249776A1
公开(公告)日：2011-10-13
申请号：US12600164
申请日：2008-05-07
申请人： Yonghong Zeng , Choo Leng Koh , Ying-Chang Liang
发明人： Yonghong Zeng , Choo Leng Koh , Ying-Chang Liang
IPC分类号： H03D1/00 , H04L27/06
CPC分类号： H04L27/0006
摘要： A method of determining as to whether a received signal includes a data signal is provided. The method provided includes determining a first value based on a cyclic auto-correlation of the received signal and determining a second value based on the cyclic auto-correlation of the received signal. The method provided further includes determining as to whether a received signal includes a data signal based on a comparison of the first value and the second value.
摘要翻译：提供一种确定接收信号是否包括数据信号的方法。所提供的方法包括基于接收信号的循环自相关确定第一值，并且基于接收信号的循环自相关确定第二值。所提供的方法还包括基于第一值和第二值的比较来确定接收到的信号是否包括数据信号。

5. 发明授权

US08315297B2 Method, device and computer program for classifying a received signal 有权
标题翻译：用于分类接收信号的方法，设备和计算机程序
公开(公告)号：US08315297B2
公开(公告)日：2012-11-20
申请号：US12307071
申请日：2007-07-05
申请人： Yonghong Zeng , Ying-Chang Liang
发明人： Yonghong Zeng , Ying-Chang Liang
IPC分类号： H04B15/00 , H04B17/00 , H04L27/06
CPC分类号： H04B17/345
摘要： An embodiment of the invention provides a method for classifying a received signal. The method includes determining a covariance matrix of signal values of the received signal, and determining an eigenvalue matrix of the covariance matrix. The eigenvalue matrix includes the eigenvalues of the covariance matrix. A first function is determined from at least one eigenvalue of the eigenvalues of the covariance matrix. A second function is determined from at least one eigenvalue of the eigenvalues of the covariance matrix, wherein the second function is different from the first function. Dependent from a comparison between a value of the first function and a value of the second function, the received signal is classified into a signal comprising data or into a noise signal.
摘要翻译：本发明的实施例提供了一种用于对接收到的信号进行分类的方法。该方法包括确定接收信号的信号值的协方差矩阵，以及确定协方差矩阵的特征值矩阵。特征值矩阵包括协方差矩阵的特征值。从协方差矩阵的特征值的至少一个特征值确定第一函数。从协方差矩阵的特征值的至少一个特征值确定第二函数，其中第二函数不同于第一函数。根据第一功能的值和第二功能的值之间的比较，接收的信号被分类为包括数据或噪声信号的信号。

6. 发明授权

US08259783B2 Method of determining as to whether a received signal includes an information signal 有权
标题翻译：确定接收信号是否包括信息信号的方法
公开(公告)号：US08259783B2
公开(公告)日：2012-09-04
申请号：US12513545
申请日：2007-11-07
申请人： Yonghong Zeng , Ying-Chang Liang
发明人： Yonghong Zeng , Ying-Chang Liang
IPC分类号： H04B1/00
CPC分类号： G06K9/0055 , H04W16/14
摘要： A method of determining as to whether a received signal includes an information signal is provided. The method provided includes determining a covariance matrix from a received signal and transforming the covariance matrix into a transformed covariance matrix, wherein the transformation is configured such that the transformed covariance matrix is a non-diagonal matrix in case the received signal includes the information signal, wherein the non-diagonal matrix includes non-zero non-diagonal matrix elements. The method provided further includes determining a first function using at least one of the non-zero non-diagonal matrix elements of the transformed covariance matrix, determining a second function using at least one matrix element of the transformed covariance matrix, wherein the second function is different from the first function, and determining as to whether a received signal includes an information signal based on a comparison of a value of the first function and a value of the second function.
摘要翻译：提供一种确定接收信号是否包括信息信号的方法。所提供的方法包括从接收信号确定协方差矩阵并将协方差矩阵变换成变换协方差矩阵，其中变换被配置成使得在接收到的信号包括信息信号的情况下变换的协方差矩阵是非对角矩阵，其中所述非对角矩阵包括非零非对角矩阵元素。所提供的方法还包括使用变换的协方差矩阵的非零非对角矩阵元素中的至少一个确定第一函数，使用变换的协方差矩阵的至少一个矩阵元素确定第二函数，其中第二函数为与第一功能不同，并且基于第一功能的值和第二功能的值的比较，确定接收信号是否包括信息信号。

7. 发明申请

US20100015935A1 Method, Device and Computer Program for Classifying a Received Signal 有权
标题翻译：用于分类接收信号的方法，设备和计算机程序
公开(公告)号：US20100015935A1
公开(公告)日：2010-01-21
申请号：US12307071
申请日：2007-07-05
申请人： Yonghong Zeng , Ying-Chang Liang
发明人： Yonghong Zeng , Ying-Chang Liang
IPC分类号： H04B1/16
CPC分类号： H04B17/345
摘要： An embodiment of the invention provides a method for classifying a received signal. The method includes determining a covariance matrix of signal values of the received signal, and determining an eigenvalue matrix of the covariance matrix. The eigenvalue matrix includes the eigenvalues of the covariance matrix. A first function is determined from at least one eigenvalue of the eigenvalues of the covariance matrix. A second function is determined from at least one eigenvalue of the eigenvalues of the covariance matrix, wherein the second function is different from the first function. Dependent from a comparison between a value of the first function and a value of the second function, the received signal is classified into a signal comprising data or into a noise signal.
摘要翻译：本发明的实施例提供了一种用于对接收到的信号进行分类的方法。该方法包括确定接收信号的信号值的协方差矩阵，以及确定协方差矩阵的特征值矩阵。特征值矩阵包括协方差矩阵的特征值。从协方差矩阵的特征值的至少一个特征值确定第一函数。从协方差矩阵的特征值的至少一个特征值确定第二函数，其中第二函数不同于第一函数。根据第一功能的值和第二功能的值之间的比较，接收的信号被分类为包括数据或噪声信号的信号。

8. 发明申请

US20110243197A1 TWO-DIMENSIONAL CODE SPREADING FOR INTERLEAVED FDMA SYSTEM 失效
标题翻译：用于交互式FDMA系统的二维代码扩展
公开(公告)号：US20110243197A1
公开(公告)日：2011-10-06
申请号：US13127485
申请日：2008-11-05
申请人： Hiroyuki Atarashi , Mamoru Sawahashi , Francois Po Shin Chin , Zhongding Lei , Xiaoming Peng , Ying-Chang Liang
发明人： Hiroyuki Atarashi , Mamoru Sawahashi , Francois Po Shin Chin , Zhongding Lei , Xiaoming Peng , Ying-Chang Liang
IPC分类号： H04B1/66 , H04B1/707
CPC分类号： H04J11/005 , H04B1/692
摘要： A transmitter comprises a first spreading unit configured to multiply each of multiple data symbols with a first spreading code sequence of a first spreading factor; a compression and repetition unit configured to compress output signals of the first spreading unit in time domain and repeat the compressed signal L times (where L is a natural number greater than or equal to 2); a phase modulation unit configured to multiply the compressed and repeated signal with a user dependent phase and output a data block consisting of L sub-blocks; a second spreading unit configured to replicate the data block according to a second spreading factor and multiply each set of the replicated sub-blocks with a second spreading code sequence of the second spreading factor to produce a two-dimensionally spread signal; and a wireless transmission unit configured to transmit the two-dimensionally spread signal using a single-carrier transmission scheme.
摘要翻译：发射机包括：第一扩展单元，被配置为将多个数据符号中的每一个乘以第一扩频因子的第一扩展码序列; 压缩和重复单元，被配置为在时域中压缩第一扩展单元的输出信号，并重复压缩信号L次（其中L是大于或等于2的自然数）; 相位调制单元，被配置为将压缩和重复信号与用户相关的相位相乘，并输出由L个子块组成的数据块; 第二扩展单元，被配置为根据第二扩展因子复制数据块，并且将每组复制子块与第二扩展因子的第二扩展码序列相乘以产生二维扩展信号; 以及无线传输单元，被配置为使用单载波传输方案来发送二维扩展信号。

9. 发明申请

US20100111235A1 METHOD OF DETERMINING AS TO WHETHER A RECEIVED SIGNAL INCLUDES AN INFORMATION SIGNAL 有权
标题翻译：确定收信信号包括信息信号的方法
公开(公告)号：US20100111235A1
公开(公告)日：2010-05-06
申请号：US12513545
申请日：2007-11-07
申请人： Yonghong Zeng , Ying-Chang Liang
发明人： Yonghong Zeng , Ying-Chang Liang
IPC分类号： H04L27/06 , H04L27/00
CPC分类号： G06K9/0055 , H04W16/14
摘要： A method of determining as to whether a received signal includes an information signal is provided. The method provided includes determining a covariance matrix from a received signal and transforming the covariance matrix into a transformed covariance matrix, wherein the transformation is configured such that the transformed covariance matrix is a non-diagonal matrix in case the received signal includes the information signal, wherein the non-diagonal matrix includes non-zero non-diagonal matrix elements. The method provided further includes determining a first function using at least one of the non-zero non-diagonal matrix elements of the transformed covariance matrix, determining a second function using at least one matrix element of the transformed covariance matrix, wherein the second function is different from the first function, and determining as to whether a received signal includes an information signal based on a comparison of a value of the first function and a value of the second function.
摘要翻译：提供一种确定接收信号是否包括信息信号的方法。所提供的方法包括从接收信号确定协方差矩阵并将协方差矩阵变换成变换协方差矩阵，其中变换被配置成使得在接收到的信号包括信息信号的情况下变换的协方差矩阵是非对角矩阵，其中所述非对角矩阵包括非零非对角矩阵元素。所提供的方法还包括使用变换的协方差矩阵的非零非对角矩阵元素中的至少一个确定第一函数，使用变换的协方差矩阵的至少一个矩阵元素确定第二函数，其中第二函数为与第一功能不同，并且基于第一功能的值和第二功能的值的比较，确定接收信号是否包括信息信号。

10. 发明授权

US07359733B2 Beam synthesis method for downlink beamforming in FDD wireless communication system 失效
标题翻译： FDD无线通信系统下行波束成形的波束合成方法
公开(公告)号：US07359733B2
公开(公告)日：2008-04-15
申请号：US09922442
申请日：2001-08-03
申请人： Ying-Chang Liang , Francois Chin
发明人： Ying-Chang Liang , Francois Chin
IPC分类号： H01Q3/00 , H04M1/00
CPC分类号： H04B7/0617 , H04B7/086
摘要： A method for downlink beamforming in a frequency-division-duplex wireless communications system comprising a base station with an antenna array and terminals that are physically remote from said base station, the method comprising the steps of: receiving at said base station antenna array combinations of arriving uplink signals from said plurality of remote terminals, estimating an uplink beamforming weight vector for each of said terminals from said combinations of arriving uplink signal; identifying uplink nulls and an uplink main beam position from said uplink beamforming weight vector; transforming each of said uplink nulls to form a corresponding downlink null; generating a downlink beamforming weight vector from all downlink nulls; and transmitting a set of information signals from said base station antenna array according to said downlink. beamforming weights.
摘要翻译：一种频分双工无线通信系统中的下行链路波束形成方法，包括具有天线阵列的基站和物理上远离所述基站的终端，所述方法包括以下步骤：在所述基站天线阵列接收天线阵列的组合从所述多个远程终端到达的上行链路信号，从所述到达上行链路信号的组合估计每个所述终端的上行链路波束成形权重向量; 从所述上行波束成形加权矢量识别上行链路空值和上行链路主波束位置; 对每个所述上行链路空值进行变换以形成相应的下行链路空值; 从所有下行链路零点生成下行链路波束成形加权向量; 以及根据所述下行链路从所述基站天线阵列发送一组信息信号。波束成形重量。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式