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1. 发明授权

US06473451B1 Signal to interference power ratio measuring apparatus and signal to interference power ratio measuring method as well as transmission power controlling method under CDMA communication system 失效
标题翻译：信号与干扰功率比测量装置和信号与干扰功率比测量方法以及CDMA通信系统下的发射功率控制方法
公开(公告)号：US06473451B1
公开(公告)日：2002-10-29
申请号：US09477187
申请日：2000-01-04
申请人： Hiroyuki Seki , Yoshinori Tanaka , Shuji Kobayakawa , Takeshi Toda , Masafumi Tsutsui
发明人： Hiroyuki Seki , Yoshinori Tanaka , Shuji Kobayakawa , Takeshi Toda , Masafumi Tsutsui
IPC分类号： H04L2730
CPC分类号： H04W52/24 , H04B1/71075
摘要： The invention provides a technique for measurement of a signal to interference power ratio wherein an SIR can be measured with a higher degree of accuracy without being influenced by a fast fading environment or an inter-station interference or noise environment. A signal to interference power ratio measuring apparatus includes a plurality of interference replica signal production sections for performing de-spread processing for input signals originating from a received signal, performing temporary decision of information symbols regarding the input signals, performing spread processing again for the input signals and outputting resulting signals as interference replica signals, a plurality of subtractors for subtracting the interference replica signals from the received signal, an interference power detection section for detecting interference power information, a signal power detection section for detecting signal power information, and a signal to interference power ratio calculation section for calculating signal to interference power ratios from the interference power information and the signal power information.
摘要翻译：本发明提供了一种用于测量信号与干扰功率比的技术，其中可以以更高的准确度测量SIR，而不受快速衰落环境或站间干扰或噪声环境的影响。信号与干扰功率比测量装置包括多个干扰复制信号产生部分，用于对从接收信号产生的输入信号执行解扩处理，执行与输入信号有关的信息符号的临时决定，再次对输入进行扩展处理信号并输出作为干扰复制信号的结果信号，用于从接收信号中减去干扰复制信号的多个减法器，用于检测干扰功率信息的干扰功率检测部分，用于检测信号功率信息的信号功率检测部分和信号干扰功率比计算部分，用于从干扰功率信息和信号功率信息计算信号与干扰功率比。

2. 发明授权

US06192067B1 Multistage interference canceller 失效
标题翻译：多级干扰消除器
公开(公告)号：US06192067B1
公开(公告)日：2001-02-20
申请号：US08995251
申请日：1997-12-19
申请人： Takeshi Toda , Yoshinori Tanaka , Shuji Kobayakawa , Hiroyuki Seki , Masafumi Tsutsui
发明人： Takeshi Toda , Yoshinori Tanaka , Shuji Kobayakawa , Hiroyuki Seki , Masafumi Tsutsui
IPC分类号： H04B1500
CPC分类号： H04B1/71075 , H04B2001/71077
摘要： A multistage interference canceller and method for removing interference between users and multipath interference from received signals in multiple stages includes a plurality of despreading units which produce a received symbol vector and an estimated channel value, a synthesis unit which synthesizes the received symbol vector, an amplitude of the received symbol vector and the amplitude of the estimated value from each reverse spreading unit, and a decision unit which executes a hard decision and a soft decision according to a result of comparing the total amplitude of the received symbol vector and the total amplitude of the estimated channel value.
摘要翻译：用于从多个接收信号中消除用户干扰和多径干扰的多级干扰消除器和方法包括产生接收符号向量和估计信道值的多个解扩单元，合成接收到的符号向量的合成单元，振幅以及来自每个反向扩展单元的估计值的幅度的决策单元，以及根据将接收到的符号向量的总振幅与总的振幅进行比较的结果执行硬判决和软判决的判定单元估计的通道值。

3. 发明授权

US6157685A Interference canceller equipment and interference cancelling method for use in a multibeam-antenna communication system 失效
标题翻译：用于多波束天线通信系统的干扰消除设备和干扰消除方法
公开(公告)号：US6157685A
公开(公告)日：2000-12-05
申请号：US995253
申请日：1997-12-19
申请人： Yoshinori Tanaka , Shuji Kobayakawa , Hiroyuki Seki , Takeshi Toda , Masafumi Tsutsui
发明人： Yoshinori Tanaka , Shuji Kobayakawa , Hiroyuki Seki , Takeshi Toda , Masafumi Tsutsui
IPC分类号： H04B1/10 , H04B1/707 , H04B1/7107 , H04B7/08 , H04B7/26 , H04W16/28 , H04W88/02 , H04B7/00
CPC分类号： H04B1/71075 , H04B7/086 , H04B7/0848
摘要： A multistage interference canceller equipment and interference canceller method for use, for example, in CDMA (Code Division Multiple Access) multibeam-antenna communication system includes in each stage an interference canceller unit which has a replica signal generator which generates from an input beam signal a first interference replica signal and outputs a first error signal, and an interference removal unit which receives from another replica signal generator a second interference replica signal, multiplies that second interference replica signal by conversion coefficients and subtracts an obtained signal from the first interference replica signal to produce a second error signal so that an error signal is generated for each signal beam from the interference replica signals of a local signal beam and other signal beams to eliminate interference.
摘要翻译：例如在CDMA（码分多址）多波束天线通信系统中使用的多级干扰消除器设备和干扰消除器方法在每个阶段包括干扰消除器单元，其具有从输入波束信号a产生的副本信号发生器第一干扰复制信号并输出第一误差信号，以及干扰去除单元，其从另一副本信号发生器接收第二干扰复制信号，通过转换系数乘以该第二干扰副本信号，并将获得的信号从第一干扰复制信号中减去到产生第二误差信号，从而根据本地信号光束和其它信号光束的干扰复制信号为每个信号光束产生误差信号以消除干扰。

4. 发明授权

US6032026A Signal to interference power ratio measuring apparatus and signal to interference power ratio measuring method as well as transmission power controlling method under CDMA communication system 失效
标题翻译：信号与干扰功率比测量装置和信号与干扰功率比测量方法以及CDMA通信系统下的发射功率控制方法
公开(公告)号：US6032026A
公开(公告)日：2000-02-29
申请号：US26322
申请日：1998-02-19
申请人： Hiroyuki Seki , Yoshinori Tanaka , Shuji Kobayakawa , Takeshi Toda , Masafumi Tsutsui
发明人： Hiroyuki Seki , Yoshinori Tanaka , Shuji Kobayakawa , Takeshi Toda , Masafumi Tsutsui
IPC分类号： G01R29/00 , G01R29/08 , H04B1/7107 , H04B7/005 , H04B7/26 , H04B17/00 , H04B17/345 , H04J13/00 , H04W24/00 , H04W52/08 , H04W52/24 , H04B15/00
CPC分类号： H04W52/24 , H04B1/71075
摘要： The invention provides a technique for measurement of a signal to interference power ratio wherein an SIR can be measured with a higher degree of accuracy without being influenced by a fast fading environment or an inter-station interference or noise environment. A signal to interference power ratio measuring apparatus includes a plurality of interference replica signal production sections for performing inverse diffusion processing for input signals originating from a received signal, performing temporary decision of information symbols regarding the input signals, performing diffusion processing again for the input signals and outputting resulting signals as interference replica signals, a plurality of subtractors for subtracting the interference replica signals from the received signal, an interference power detection section for detecting interference power information, a signal power detection section for detecting signal power information, and a signal to interference power ratio calculation section for calculating signal to interference power ratios from the interference power information and the signal power information.
摘要翻译：本发明提供了一种用于测量信号与干扰功率比的技术，其中可以以更高的准确度测量SIR，而不受快速衰落环境或站间干扰或噪声环境的影响。信号与干扰功率比测量装置包括多个干扰复制信号产生部分，用于对从接收信号产生的输入信号进行反扩散处理，执行关于输入信号的信息符号的临时决定，对输入信号再次执行扩散处理并将所得信号作为干扰复制信号输出，用于从接收信号中减去干扰复制信号的多个减法器，用于检测干扰功率信息的干扰功率检测部分，用于检测信号功率信息的信号功率检测部分，干扰功率比计算部分，用于从干扰功率信息和信号功率信息计算信号与干扰功率比。

5. 发明授权

US6058318A Radio base station in cellular mobile communication system 失效
标题翻译：蜂窝移动通信系统中的无线基站
公开(公告)号：US6058318A
公开(公告)日：2000-05-02
申请号：US21357
申请日：1998-02-10
申请人： Shuji Kobayakawa , Yoshinori Tanaka , Hiroyuki Seki , Takeshi Toda , Masafumi Tsutsui
发明人： Shuji Kobayakawa , Yoshinori Tanaka , Hiroyuki Seki , Takeshi Toda , Masafumi Tsutsui
IPC分类号： H01Q3/26 , H01Q3/38 , H01Q25/00 , H04B7/26 , H04Q7/36 , H04B1/38
CPC分类号： H01Q3/2605 , H01Q3/267
摘要： A reference antenna element out of plural antenna elements directed to the same sector is set as a first antenna element; a receiver for frequency conversion of the signal received by the first antenna element is set as a first receiver; any antenna element different from the first antenna element is set as a second antenna element; and a receiver for frequency conversion of the signal received by the second antenna element is set as a second receiver. The output signals of the first and second receivers relative to a specific up-signal are supplied to phase compensation calculator means, which then calculates the phase compensation amount representing the phase amount of the difference between the output-signal phase difference of the first and second receivers and the input-signal phase difference of the first and second receivers.
摘要翻译：指向同一扇区的多个天线元件中的参考天线元件被设置为第一天线元件; 将由第一天线元件接收的信号进行频率转换的接收机设置为第一接收机; 将与第一天线元件不同的任何天线元件设置为第二天线元件; 并且将由第二天线元件接收的信号进行频率转换的接收机设置为第二接收机。第一和第二接收器相对于特定向上信号的输出信号被提供给相位补偿计算器装置，然后计算表示第一和第二接收器的输出信号相位差之间的差的相位量的相位补偿量接收机和第一和第二接收机的输入信号相位差。

6. 发明授权

US6064338A Array antenna system of wireless base station 有权
标题翻译：无线基站阵列天线系统
公开(公告)号：US6064338A
公开(公告)日：2000-05-16
申请号：US141738
申请日：1998-08-27
申请人： Shuji Kobayakawa , Yoshinori Tanaka , Masafumi Tsutsui , Hiroyuki Seki
发明人： Shuji Kobayakawa , Yoshinori Tanaka , Masafumi Tsutsui , Hiroyuki Seki
IPC分类号： G01S3/14 , H01Q3/26 , H04B1/707 , H04B1/7115 , H04B7/08 , H04W16/28 , H04W16/30 , G01S3/16
CPC分类号： H04B7/0837 , G01S3/14 , H01Q3/2605
摘要： An array antenna system of a wireless base station in CDMA mobile communications combines signals, which have been received by a plurality of antenna elements of an array antenna, upon subjecting the signals to amplitude and phase-rotation control, and despreads the combined signal. A searcher has matched filters which apply correlation operations to output signals from respective antenna elements to thereby calculate correlation signals that are correlated with a signal transmitted from a mobile station of interest. An adaptive weight calculating unit calculates adaptive weights for obtaining in-phase correlation signals from the respective antenna outputs. A beam former multiplies, by the adaptive weights, output signals from the corresponding antenna elements and combines the resulting products to output a combined signal. The combined signal is found for each path of multipaths and is input to a Rake receiver, which proceeds to identify data.
摘要翻译： CDMA移动通信中的无线基站的阵列天线系统组合已经由阵列天线的多个天线元件接收的信号对信号进行振幅和相位旋转控制，并且对合并的信号进行解扩。搜索器具有匹配的滤波器，其将相关运算应用于来自各个天线单元的输出信号，从而计算与从感兴趣的移动台发送的信号相关的相关信号。自适应权重计算单元计算用于从各个天线输出获得同相相关信号的自适应权重。波束形成器通过自适应权重乘以来自相应天线元件的输出信号，并将所得到的乘积组合以输出组合信号。针对每个路径路径找到组合信号，并将其输入到Rake接收机，从而进行识别数据。

7. 发明授权

US06304624B1 Coherent detecting method using a pilot symbol and a tentatively determined data symbol, a mobile communication receiver and an interference removing apparatus using the coherent detecting method 失效
标题翻译：使用导频符号和暂时确定的数据符号的相干检测方法，使用相干检测方法的移动通信接收机和干扰去除装置
公开(公告)号：US06304624B1
公开(公告)日：2001-10-16
申请号：US09168119
申请日：1998-10-07
申请人： Hiroyuki Seki , Yoshinori Tanaka , Shuji Kobayakawa , Takeshi Toda
发明人： Hiroyuki Seki , Yoshinori Tanaka , Shuji Kobayakawa , Takeshi Toda
IPC分类号： H04L706
CPC分类号： H04L25/0236 , H04B1/71075 , H04B2201/70701 , H04L7/04 , H04L25/0214
摘要： A coherent detecting circuit accurately estimates a propagation characteristic of a propagation path without increasing the number of pilot symbols when a fading frequency is high so that an error rate of received data is decreased. At least one pilot symbol is received from a transmitter. The pilot symbol may be provided in a data frame of data symbols, or transmitted through a channel different from a channel of the data symbols. A first estimated value of the propagation characteristic of a propagation path is estimated by using the pilot symbol. The data symbols are tentatively determined based on an estimated value of the propagation path. A second estimated value of the propagation characteristic is estimated by using the pilot symbol and at lease one of the tentatively determined data symbols. The data symbols are finally determined based on the second estimated value of the propagation characteristic.
摘要翻译：当衰落频率高时，相干检测电路能够精确地估计传播路径的传播特性而不增加导频符号数，从而降低接收数据的错误率。从发射机接收至少一个导频符号。导频符号可以被提供在数据符号的数据帧中，或者通过与数据符号的信道不同的信道发送。通过使用导频符号来估计传播路径的传播特性的第一估计值。基于传播路径的估计值暂时确定数据符号。通过使用导频符号和暂时确定的数据符号中的至少一个来估计传播特性的第二估计值。最终基于传播特性的第二估计值来确定数据符号。

8. 发明授权

US06614766B1 Interference canceller 失效
标题翻译：干扰消除器
公开(公告)号：US06614766B1
公开(公告)日：2003-09-02
申请号：US09205805
申请日：1998-12-04
申请人： Hiroyuki Seki , Yoshinori Tanaka , Shuji Kobayakawa , Takeshi Toda
发明人： Hiroyuki Seki , Yoshinori Tanaka , Shuji Kobayakawa , Takeshi Toda
IPC分类号： H04B700
CPC分类号： H04B1/71075 , H04B2001/71077
摘要： An interference canceller includes despread processing parts, a combiner combining interference replica generation signals, a decision part that decides an output signal, spread processing parts coupled to the despread processing parts and the decision part, an attenuation coefficient generator generating an attenuation coefficient dependent on a reliability of the interference replica generation signals, and a multiplier multiplying the output signal of the decision part by the attenuation coefficient.
摘要翻译：干扰消除器包括解扩处理部分，组合干扰副本生成信号的组合器，决定输出信号的判定部分，耦合到解扩处理部分的扩展处理部分和判定部分，衰减系数发生器，其产生依赖于干扰副本产生信号的可靠性，以及将决定部分的输出信号乘以衰减系数的乘法器。

9. 发明授权

US06347220B1 Multiple-beam antenna system of wireless base station 有权
标题翻译：无线基站多波束天线系统
公开(公告)号：US06347220B1
公开(公告)日：2002-02-12
申请号：US09143679
申请日：1998-08-31
申请人： Yoshinori Tanaka , Shuji Kobayakawa , Masafumi Tsutsui
发明人： Yoshinori Tanaka , Shuji Kobayakawa , Masafumi Tsutsui
IPC分类号： H04B1700
CPC分类号： H04W16/28 , H01Q1/246 , H01Q3/2605 , H01Q25/00 , H04B7/0617 , H04B7/086
摘要： In a CDMA wireless base station, signals that have been received by a plurality antenna elements of an array antenna on the receiving side are subjected to beam forming by a reception beam former to electrically form a plurality of uplink beams. Reception is carried out based upon the optimum beam (e.g., the beam for which the power is maximum) among the plurality of uplink beams. A transmission beam former for subjecting a transmission signal to beam forming is provided. Based upon whether an uplink reception signal is present or not, a controller performs control so as to carry out downlink beam forming, thereby forming a downlink transmission beam in a direction identical with that of the optimum uplink reception beam, or in such a manner that downlink beam forming is not carried out.
摘要翻译：在CDMA无线基站中，由接收侧的阵列天线的多个天线元件接收的信号由接收波束成形器进行波束形成，以形成多个上行波束。基于多个上行链路波束中的最佳波束（例如，功率最大的波束）进行接收。提供了一种用于对传输信号进行波束形成的传输波束形成器。基于是否存在上行链路接收信号，控制器执行控制以便执行下行链路波束形成，从而在与最佳上行链路接收波束的方向相同的方向上形成下行链路传输波束，或者以如下方式不执行下行链路波束形成。

10. 发明授权

US06904076B1 Interference canceller device and radio communication device 失效
标题翻译：干扰消除装置和无线通信装置
公开(公告)号：US06904076B1
公开(公告)日：2005-06-07
申请号：US09260257
申请日：1999-03-02
申请人： Masafumi Tsutsui , Yoshinori Tanaka , Shuji Kobayakawa
发明人： Masafumi Tsutsui , Yoshinori Tanaka , Shuji Kobayakawa
IPC分类号： H03D1/04 , H04B1/707 , H04B1/7107 , H04B7/216 , H04B1/713 , H04J13/04
CPC分类号： H04B1/71075
摘要： The present invention is directed to an interference canceller for a DS-CDMA communication system and a radio communication device that performs multi-rate transmission and eliminates interference of high-rate channels by a simplified structure. In a DS-CDMA communication system that performs a multi-rate transmission including at least low-rate channels and high-rate channels, there is provided an interference canceller that includes an array antenna interference replicating unit. The interference replicating unit is used in high-rate channels that receive signals received via array antenna elements and creates interference replicas of the high-rate channels. The system also includes an adder 6, which subtracts the interference replicas from the received signal via the array antenna elements. Further a resultant interference-eliminated signal is applied to receivers for the low-rate and high-rate channels.
摘要翻译：本发明涉及用于DS-CDMA通信系统的干扰消除器和执行多速率传输的无线通信设备，并通过简化的结构消除了高速率信道的干扰。在执行包括至少低速率信道和高速率信道的多速率传输的DS-CDMA通信系统中，提供了包括阵列天线干扰复制单元的干扰消除器。干扰复制单元用于接收通过阵列天线元件接收的信号的高速率信道，并产生高速率信道的干扰副本。该系统还包括加法器6，其经由阵列天线元件从接收信号中减去干扰副本。此外，对于低速率和高速率信道，接收机应用合成干扰消除信号。

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