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公开(公告)号：US07305022B2
公开(公告)日：2007-12-04
申请号：US10789226
申请日：2004-02-26
IPC分类号： H04B1/00
CPC分类号： H04B1/712 , H04B1/7117
摘要： MIXR is implemented with a realistic amount of hardware even when the number of detected paths is large. From among path timings detected by a path searcher and MICTs generated based on the detected path timings, as many timings as there are fingers are selected by a timing selector and the selected timings are assigned to the fingers. When selecting the timings, the value of SNIR expected to be achieved by RAKE combining in a RAKE combiner, for example, is predicted by calculation from a received signal, and the path timing and MICT that maximize the SNIR are selected.
摘要翻译： 即使检测到的路径数量大，MIXR也可以实现硬实际的硬件。 由路径搜索器检测到的路径定时和基于检测到的路径定时生成的MICT之间，定时选择器选择与手指一样多的定时，并将所选择的定时分配给手指。 当选择定时时，例如通过从接收信号的计算来预测通过RAKE组合器中的RAKE组合预期的SNIR的值被预测，并且选择使SNIR最大化的路径定时和MICT。
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公开(公告)号：US20050058183A1
公开(公告)日：2005-03-17
申请号：US10789226
申请日：2004-02-26
IPC分类号： H04B1/707 , H04B1/7115 , H04B7/08 , H04L1/00
CPC分类号： H04B1/712 , H04B1/7117
摘要： MIXR is implemented with a realistic amount of hardware even when the number of detected paths is large. From among path timings detected by a path searcher and MICTs generated based on the detected path timings, as many timings as there are fingers are selected by a timing selector and the selected timings are assigned to the fingers. When selecting the timings, the value of SNIR expected to be achieved by RAKE combining in a RAKE combiner, for example, is predicted by calculation from a received signal, and the path timing and MICT that maximize the SNIR are selected.
摘要翻译： 即使检测到的路径数量大，MIXR也可以实现硬实际的硬件。 由路径搜索器检测到的路径定时和基于检测到的路径定时生成的MICT之间，定时选择器选择与手指一样多的定时，并将所选择的定时分配给手指。 当选择定时时，例如通过从接收信号的计算来预测通过RAKE组合器中的RAKE组合预期的SNIR的值被预测，并且选择使SNIR最大化的路径定时和MICT。
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公开(公告)号：US08301352B2
公开(公告)日：2012-10-30
申请号：US13227677
申请日：2011-09-08
申请人： Akira Ito , Takashi Dateki , Masahiko Shimizu
发明人： Akira Ito , Takashi Dateki , Masahiko Shimizu
IPC分类号： G06F19/00
CPC分类号： H04W52/262 , H04W52/146 , H04W52/225 , H04W52/246
摘要： A cubic metric calculator performs a calculation of a time average of power of the amplitude of a transmission signal when a cubic metric value is calculated as a product-sum operation between a transmission power-dependent term including an amplitude value depending on the transmission power of a transmission signal and a time average term including only a modulation parameter not depending on the transmission power of the transmission signal. When the transmission signal is transmitted, the operator inputs the amplitude value to calculate the transmission power-dependent term, reads the value of the time average term from coefficient memory, and performs the product-sum operation using an operation result of the transmission power-dependent term and the read value of the time average term, thereby calculating a time average of the power of the amplitude of the transmission signal.
摘要翻译： 当三次度量值被计算为包括根据发射功率的发射功率的幅度值的发射功率相关项之间的乘积和运算时，三次量度计算器执行传输信号的幅度的功率的时间平均值的计算 传输信号和仅包括不依赖于发送信号的发送功率的调制参数的时间平均项。 当发送发送信号时，操作员输入振幅值来计算发送功率相关项，从系数存储器读取时间平均项的值，并使用发送功率相关项的运算结果进行乘积和运算， 依赖项和时间平均项的读取值，从而计算发送信号的幅度的功率的时间平均。
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4.发明申请Transmission power control method and transmission power control apparatus in OFDM-CDMA 审中-公开OFDM-CDMA中的发射功率控制方法和发射功率控制装置公开(公告)号：US20050105593A1
公开(公告)日：2005-05-19
申请号：US11023267
申请日：2004-12-27
申请人： Takashi Dateki , Masahiko Shimizu
发明人： Takashi Dateki , Masahiko Shimizu
摘要： In power control in an OFDM-CDMA system for creating a number of subcarrier components by multiplying a plurality of symbols by channelization codes of a length that conforms to a spreading factor, and transmitting each of the subcarrier components by a corresponding subcarrier, a subcarrier band is divided into a plural subcarrier blocks, the number of the subcarriers in each block is a whole-number multiple of the spreading factor, an identical transmission power is assigned to each subcarrier in each subcarrier block obtained by such division, and transmission power is controlled from one subcarrier block to another.
摘要翻译： 在OFDM-CDMA系统中的功率控制中，用于通过使符合扩频因子的长度的信道化码乘以多个符号来产生多个子载波分量，并且通过相应的子载波来发送每个副载波分量，子载波频带 被划分为多个子载波块，每个块中的子载波数是扩频因子的整数倍，对通过这种划分获得的每个子载波块中的每个子载波分配相同的发射功率，并且控制发射功率 从一个子载波块到另一个。
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公开(公告)号：US06650692B2
公开(公告)日：2003-11-18
申请号：US09943437
申请日：2001-08-29
IPC分类号： H04K100
CPC分类号： H04B1/7117 , H04B1/7093 , H04B1/712
摘要： A path search unit (1) detects the correlation between a received signal and a desired signal; (2) based on the correlation value, selects a plurality of paths over which the desired signal arrives; (3) if the difference between the detection time of the desired signal arriving via a path selected this time and the previous-time detection signal is within an allowable range, judges that the path selected this time is identical to a path previously allocated to prescribed finger units, and (4) if a path is identical, causes despreading and delay adjustment processing of the desired signal arriving over the selected path to be executed by the same finger unit as previously. A timing control unit calculates the difference between the detection time this time, over the identical path, and a reference time, and, based on the total of the time differences over the identical path, controls the timing lead/lag.
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公开(公告)号：US6088583A
公开(公告)日：2000-07-11
申请号：US120076
申请日：1998-07-21
CPC分类号： H03G3/3052 , H03G3/3068
摘要： In an automatic gain control (AGC) circuit for controlling a preceding gain control unit and a following gain control unit, the AGC circuit according to the present invention includes at least a comparison unit, a first gain control signal output unit and a second gain control signal output unit. The comparison unit compares a signal level from the following gain control unit with a reference value. The first gain control signal output unit outputs a first gain control signal to the following gain control unit in response to an output signal obtained as a result of comparison in the comparison unit. The second gain control signal output unit outputs a second gain control signal to the preceding gain control unit. Further, the second gain control signal has a time constant longer than that of the first gain control signal output unit, in response to the output signal obtained as the result of comparison in the comparison unit.
摘要翻译： 在用于控制前一增益控制单元和后续增益控制单元的自动增益控制（AGC）电路中，根据本发明的AGC电路至少包括比较单元，第一增益控制信号输出单元和第二增益控制 信号输出单元。 比较单元将来自以下增益控制单元的信号电平与参考值进行比较。 第一增益控制信号输出单元响应于在比较单元中作为比较结果而获得的输出信号，向第二增益控制单元输出第一增益控制信号。 第二增益控制信号输出单元向前一增益控制单元输出第二增益控制信号。 此外，响应于作为比较结果的比较结果获得的输出信号，第二增益控制信号具有比第一增益控制信号输出单元的时间常数更长的时间常数。
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7.发明授权Wireless communication device, equalizer, computer-readable medium storing program for obtaining weight coefficients in the equalizer, and process for obtaining weight coefficients in the equalizer 有权无线通信装置，均衡器，用于获得均衡器中的加权系数的计算机可读介质存储程序，以及用于获得均衡器中的加权系数的处理公开(公告)号：US08537932B2
公开(公告)日：2013-09-17
申请号：US12262395
申请日：2008-10-31
申请人： Tsuyoshi Hasegawa , Masahiko Shimizu , Akira Ito
发明人： Tsuyoshi Hasegawa , Masahiko Shimizu , Akira Ito
CPC分类号： H04L25/03012 , H04L25/0242 , H04L2025/03375 , H04L2025/03477 , H04L2025/03605
摘要： In an equalizer arranged in a wireless communication device: information on correlation in one or more first wireless signals is generated; a channel vector is generated on the basis of the one or more first wireless signals; an extended correlation matrix which contains a correlation matrix indicating the information on correlation and is extended so as to become a circulant matrix is generated; an extended channel vector is generated by extending the channel vector so that the extended channel vector contains elements of the channel vector and has rows the number of which is identical to the number of rows of the extended correlation matrix; and weight coefficients are calculated as a solution, in the frequency domain, of an equation expressed by the extended correlation matrix and the extended channel vector, where the solution is obtained by solving the equation.
摘要翻译： 在布置在无线通信设备中的均衡器中，生成关于一个或多个第一无线信号中的相关性的信息; 基于一个或多个第一无线信号生成信道向量; 生成包含相关矩阵的扩展相关矩阵，该相关矩阵指示关于相关性的信息并被扩展以成为循环矩阵; 通过扩展信道向量来生成扩展信道向量，使得扩展信道向量包含信道向量的元素，其行数与扩展相关矩阵的行数相同; 并且计算权重系数作为频域中由扩展相关矩阵和扩展信道向量表示的等式的解，其中通过求解方程获得解。
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公开(公告)号：US20090257478A1
公开(公告)日：2009-10-15
申请号：US12476473
申请日：2009-06-02
IPC分类号： H04B1/707
CPC分类号： H04B1/7107 , H04B1/709 , H04B1/7115
摘要： Even when the number of paths is increased, interfering noises can be effectively reduced by a rake receiver for use in a spread spectrum communication system. The rake receiver includes a timing detecting unit detecting a reception timing ti (i=1 to N) of each of N paths when direct spread spectrum signals of the N paths are received; an inverse spreading timing setting unit setting, as a timing for inverse spreading, a timing ti,j,k (k=1 to N, k≠j) at which an inverse spread value is obtained that has interference and correlation from the jth (j=1 to N, j≠i) path included in the inverse spread value of the ith path counted from the reception timing ti (i=1 to N) detected by the timing detecting unit; a plurality of correlators each obtaining an inverse spread signal of the received signal corresponding to each timing set by the inverse spreading timing setting unit; and a signal composing unit composing outputs of the plurality of correlators.
摘要翻译： 即使路径的数量增加，也可以通过用于扩展频谱通信系统的耙式接收机有效地减少干扰噪声。 所述耙式接收机包括定时检测单元，当接收到N个路径的直接扩频信号时，检测N个路径中的每一个的接收定时ti（i = 1至N） 逆扩展定时设置单元设置用于反向扩展的定时，获得具有第j个（j = 1）的干扰和相关性的反向扩展值的定时ti，j，k（k = 1至N，kj） 1至N，ji）路径，包括在从由定时检测单元检测的接收定时ti（i = 1至N）计数的第i个路径的逆扩展值中; 多个相关器各自获得与由反向扩展定时设置单元设置的每个定时相对应的接收信号的反向扩展信号; 以及构成多个相关器的输出的信号合成单元。
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9.发明申请Wireless Communication Device, Equalizer, Computer-Readable Medium Storing Program for Obtaining Weight Coefficients in the Equalizer, and Process for Obtaining Weight Coefficients in the Equalizer 有权无线通信设备，均衡器，用于获取均衡器中的权重系数的计算机可读介质存储程序，以及获得均衡器中的权重系数的过程公开(公告)号：US20090213969A1
公开(公告)日：2009-08-27
申请号：US12262395
申请日：2008-10-31
申请人： Tsuyoshi Hasegawa , Masahiko Shimizu , Akira Ito
发明人： Tsuyoshi Hasegawa , Masahiko Shimizu , Akira Ito
IPC分类号： H04L27/06
CPC分类号： H04L25/03012 , H04L25/0242 , H04L2025/03375 , H04L2025/03477 , H04L2025/03605
摘要： In an equalizer arranged in a wireless communication device: information on correlation in one or more first wireless signals is generated; a channel vector is generated on the basis of the one or more first wireless signals; an extended correlation matrix which contains a correlation matrix indicating the information on correlation and is extended so as to become a circulant matrix is generated; an extended channel vector is generated by extending the channel vector so that the extended channel vector contains elements of the channel vector and has rows the number of which is identical to the number of rows of the extended correlation matrix; and weight coefficients are calculated as a solution, in the frequency domain, of an equation expressed by the extended correlation matrix and the extended channel vector, where the solution is obtained by solving the equation.
摘要翻译： 在布置在无线通信设备中的均衡器中，生成关于一个或多个第一无线信号中的相关性的信息; 基于一个或多个第一无线信号生成信道向量; 生成包含相关矩阵的扩展相关矩阵，该相关矩阵指示关于相关性的信息并被扩展以成为循环矩阵; 通过扩展信道向量来生成扩展信道向量，使得扩展信道向量包含信道向量的元素，其行数与扩展相关矩阵的行数相同; 并且计算权重系数作为频域中由扩展相关矩阵和扩展信道向量表示的等式的解，其中通过求解方程获得解。
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公开(公告)号：US07573934B2
公开(公告)日：2009-08-11
申请号：US11039009
申请日：2005-01-13
IPC分类号： H04B1/69
CPC分类号： H04B1/7107 , H04B1/709 , H04B1/7115
摘要： Even when the number of paths is increased, interfering noises can be effectively reduced by a rake receiver for use in a spread spectrum communication system. The rake receiver includes a timing detecting unit detecting a reception timing ti (i=1 to N) of each of N paths when direct spread spectrum signals of the N paths are received; an inverse spreading timing setting unit setting, as a timing for inverse spreading, a timing ti,j,k (k=1 to N, k≠j) at which an inverse spread value is obtained that has interference and correlation from the jth (j=1 to N, j≠i) path included in the inverse spread value of the ith path counted from the reception timing ti (i=1 to N) detected by the timing detecting unit; a plurality of correlators each obtaining an inverse spread signal of the received signal corresponding to each timing set by the inverse spreading timing setting unit; and a signal composing unit composing outputs of the plurality of correlators.
摘要翻译： 即使路径的数量增加，也可以通过用于扩展频谱通信系统的耙式接收机有效地减少干扰噪声。 所述耙式接收机包括定时检测单元，当接收到N个路径的直接扩频信号时，检测N个路径中的每一个的接收定时ti（i = 1至N） 反向扩展定时设置单元设置用于反向扩展的定时，获得具有第j个干扰和相关性的反向扩展值的定时ti，j，k（k = 1至N，k> j） （i = 1〜N）计数的第i路径的逆扩展值中包含的（j = 1〜N，j
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