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1. 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。

2. 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。

3. 发明授权

US06208294B1 Array antenna receiving device 失效
标题翻译：阵列天线接收装置
公开(公告)号：US06208294B1
公开(公告)日：2001-03-27
申请号：US09313612
申请日：1999-05-18
申请人： Shuji Kobayakawa , Yoshinori Tanaka , Masafumi Tsutsui
发明人： Shuji Kobayakawa , Yoshinori Tanaka , Masafumi Tsutsui
IPC分类号： H01Q324
CPC分类号： H01Q3/40 , H01Q3/2605
摘要： An array antenna receiving device which compensates a phase deviation to perform an efficient beam forming while keeping phase difference information between receivers determined by the arrival direction of a user signal in a communication area to which an antenna element is directive and the array of antenna elements in a radio base station. An analog beam former provides a composite beam so that a phase difference between adjacent beams may have a fixed value determined by beams to be selected. A phase compensator provides digital signals of receivers with phase correction quantities based on any one of the digital signals so that phase differences between the antenna elements may have a fixed value.
摘要翻译：阵列天线接收装置，其补偿相位偏差以执行有效的波束形成，同时保持由天线元件指向的通信区域中的用户信号的到达方向确定的接收机之间的相位差信息，以及天线元件阵列无线电基站。模拟波束形成器提供复合波束，使得相邻波束之间的相位差可以具有由要选择的波束确定的固定值。相位补偿器基于任何一个数字信号为接收机的数字信号提供相位校正量，使得天线元件之间的相位差可以具有固定值。

4. 发明授权

US06385181B1 Array antenna system of wireless base station 失效
标题翻译：无线基站阵列天线系统
公开(公告)号：US06385181B1
公开(公告)日：2002-05-07
申请号：US09143671
申请日：1998-08-31
申请人： Masafumi Tsutsui , Yoshinori Tanaka , Shuji Kobayakawa
发明人： Masafumi Tsutsui , Yoshinori Tanaka , Shuji Kobayakawa
IPC分类号： H04J1300
CPC分类号： H04B1/712 , H04B1/7115 , H04B1/7117 , H04B7/0845 , H04B7/086 , H04B7/088 , H04B7/0897
摘要： An array antenna system of a wireless base station in CDMA mobile communications has a beam former for forming a plurality of electric beams by applying beam forming to multipath signals received by a plurality of antenna elements of an array antenna and inputting the beams to despreading/delay-adjusting units (fingers) provided for respective path of multipaths. Each finger despreads each of the plurality of beams input thereto. A beam selector selects despread signals for which desired signal components are large from all beams of all paths, a combiner weights and combines the selected despread signals, and an decision unit decides data based upon the combined signal.
摘要翻译： CDMA移动通信中的无线基站的阵列天线系统具有波束形成器，用于通过对阵列天线的多个天线元件接收的多径信号施加波束形成来形成多个电波束，并将波束输入到解扩/延迟 - 为多路径的相应路径设置的调整单元（手指）。每个手指对输入到其中的多个光束中的每一个进行解扩。波束选择器从所有路径的所有波束中选择所需信号分量大的解扩信号，组合器加权并组合所选择的解扩信号，并且决定单元基于组合信号来确定数据。

5. 发明授权

US06549527B1 Radio receiver and despreader 失效
标题翻译：无线电接收机和解扩器
公开(公告)号：US06549527B1
公开(公告)日：2003-04-15
申请号：US09352262
申请日：1999-07-13
申请人： Masafumi Tsutsui , Yoshinori Tanaka , Shuji Kobayakawa
发明人： Masafumi Tsutsui , Yoshinori Tanaka , Shuji Kobayakawa
IPC分类号： H04B7216
CPC分类号： H04B7/0837 , H04B1/707 , H04B1/7115
摘要： A radio receiver for improving transmission performance by applying prescribed processing to received signals having reached to plural antennas concurrently, and a despreader to be mounted in the radio receiver. In such a radio receiver, the received signals are decimation-sampled, and multiplexed into a multiple-signal, which is demultiplexed and prediction processed for interpolating the values decimated in the sampling. In the despreader, the transfer functions and despreading codes are multiplied in real time, and interpolation processing and despreading processing are performed based on the filtering characteristics set as the results of the multiplication. In a radio transmission system to which the present invention is applied, it becomes possible to perform all of desired synthetic processing, phase scanning, frequency scanning and feeding point scanning adaptive to an array antenna system, without lowering the performance of the system or increasing the scale and the price of the hardware.
摘要翻译：一种用于通过对已经达到多个天线的接收信号同时应用规定的处理来提高传输性能的无线电接收机，以及要安装在无线电接收机中的解扩器。在这种无线电接收机中，接收到的信号被抽取采样，并被多路复用为多路信号，其被解复用并进行预测处理，以便内插抽取的值。在解扩器中，传递函数和解扩码被实时地相乘，并且基于作为乘法结果设置的滤波特性来执行插值处理和解扩处理。在应用本发明的无线电传输系统中，可以在不降低系统的性能或增加系统性能的情况下，执行适合于阵列天线系统的所有期望的合成处理，相位扫描，频率扫描和馈电点扫描规模和硬件的价格。

6. 发明授权

US06493379B1 Arrival direction estimation method using an array antenna and DS-CDMA receiver unit using the method 失效
标题翻译：使用阵列天线和DS-CDMA接收机单元的到达方向估计方法
公开(公告)号：US06493379B1
公开(公告)日：2002-12-10
申请号：US09258441
申请日：1999-02-26
申请人： Yoshinori Tanaka , Shuji Kobayakawa , Masafumi Tsutsui
发明人： Yoshinori Tanaka , Shuji Kobayakawa , Masafumi Tsutsui
IPC分类号： H04B1707
CPC分类号： H04B1/707 , G01S3/46 , H04B7/086
摘要： The present invention relates to an arrival direction estimation method using an array antenna and a DS-CDMA receiver unit using this method. The method produces an accurate estimate of the arrival direction of a desired signal regardless of reception level and high interference. In a DS-CDMA communication system for performing a transmission by a spreading process using a code having a period longer than a symbol length, received signals from an array antenna are subjected to a despreading process by despreading units. A cross-correlation function with time lags of the recieved signals is obtained by inverse-modulating despread output signals by a known symbol in an inverse modulator. An arrival direction of a received signal is estimated by an arrival direction estimation unit based on the cross-correlation function. A beam former combines the despread output signals depending on the arrival direction and outputs an output signal to a channel receiver.
摘要翻译：本发明涉及使用阵列天线的到达方向估计方法和使用该方法的DS-CDMA接收机单元。无论接收电平和高干扰，该方法都能对所需信号的到达方向进行准确的估计。在用于通过使用具有比符号长度长的周期的代码的扩展处理进行传输的DS-CDMA通信系统中，来自阵列天线的接收信号通过解扩单元进行解扩处理。通过在逆调制器中通过已知符号对解扩输出信号进行逆调制，获得具有接收信号的时间滞后的互相关函数。接收信号的到达方向由到达方向估计单元基于互相关函数来估计。波束形成器根据到达方向组合解扩输出信号，并将输出信号输出到信道接收机。

7. 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。

8. 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。

9. 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。

10. 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。

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