公开(公告)号：US5438577A

公开(公告)日：1995-08-01

申请号：US868708

申请日：1992-04-15

申请人： Junko Nakase ,  Nobukazu Doi

发明人： Junko Nakase ,  Nobukazu Doi

IPC分类号： H03M13/00 ,  H03M13/15 ,  H03M13/33 ,  H04L1/00 ,  H04N19/00 ,  H04N19/102 ,  H04N19/146 ,  H04N19/423 ,  H04N19/65 ,  H04N19/67 ,  H04N19/85 ,  G06F11/10

CPC分类号： H03M13/151 ,  H03M13/00 ,  H03M13/33

摘要： An error correcting system for performing error correction for error codewords received sequentially in a codeword string on a pipeline processing basis. The system comprises a processing block for generating syndrome data on the basis of parity symbols of each of the codewords, a processing block for performing logical processing operation to derive error locations and error values on the basis of the syndrome data, and a processing block for performing correcting operation for delayed codewords based on the error locations and values. These three processing blocks start their processing operation when receiving individual control signals based on reset signals indicative of leading heads of the respective codewords in the string and delayed by mutually different delay times. With regard to incomplete ones of the codewords that are shorter than a right correct codeword length, the logical processing operation for the error location and error evaluation as well as the error correcting operation is inhibited.

摘要翻译： 一种错误校正系统，用于对在流水线处理基础上的码字串中顺序地接收的错误代码进行纠错。 该系统包括用于基于每个码字的奇偶校验符号产生校正子数据的处理块，用于执行基于校正子数据导出误差位置和误差值的逻辑处理操作的处理块，以及用于 基于错误位置和值对延迟码字执行校正操作。 当基于指示字符串中各个码字的前导头的复位信号接收各个控制信号时，这三个处理块开始其处理操作，并被相互不同的延迟时间延迟。 关于短于正确的码字长度的不完整的码字，抑制了错误位置和错误评估的逻辑处理操作以及纠错操作。

公开(公告)号：US08213397B2

公开(公告)日：2012-07-03

申请号：US12371947

申请日：2009-02-17

申请人： Riaz Esmailzadeh ,  Takashi Yano ,  Nobukazu Doi

发明人： Riaz Esmailzadeh ,  Takashi Yano ,  Nobukazu Doi

IPC分类号： H04B7/216

CPC分类号： H04B7/2628 ,  H04B1/707

摘要： In order to accomplish efficient communication of data between a base station and a plurality of mobile terminals, particular orthogonal codes are transmitted from the mobile stations to the base station as alert signals indicating the presence of data to be transmitted. The base station checks whether particular orthogonal codes are contained in the alert signals, and when the particular orthogonal codes are detected in the alert signals, information representing the detected orthogonal codes and the schedules for transmitting the data from the mobile terminals to the base station are transmitted from the base station to the mobile terminals as an alert response to the alert signals. When the information representing the orthogonal codes used for the alert signals are contained in the alert response transmitted from the base station to the mobile terminals, the data waiting to be transmitted is transmitted from the mobile terminals to the base station according the data transmission schedules in the alert response.

摘要翻译： 为了在基站和多个移动终端之间实现数据的有效通信，将特定的正交码从移动台发送到基站，作为指示要发送的数据的存在的警报信号。 基站检查警报信号中是否包含特定的正交码，并且当在警报信号中检测到特定的正交码时，表示检测到的正交码的信息和用于从移动终端向基站发送数据的时间表是 从基站发送到移动终端作为对警报信号的警报响应。 当表示用于警报信号的正交码的信息被包含在从基站发送到移动终端的警报响应中时，等待发送的数据根据​​数据传输时间表从移动终端发送到基站 警报响应。

公开(公告)号：US07587174B2

公开(公告)日：2009-09-08

申请号：US11716541

申请日：2007-03-09

申请人： Mikio Kuwahara ,  Nobukazu Doi ,  Toshiro Suzuki ,  Yuji Ishida ,  Takashi Inoue ,  Sumaru Niida

发明人： Mikio Kuwahara ,  Nobukazu Doi ,  Toshiro Suzuki ,  Yuji Ishida ,  Takashi Inoue ,  Sumaru Niida

IPC分类号： H04B7/00

CPC分类号： H04B7/086 ,  H01Q1/246 ,  H01Q3/267 ,  H01Q3/30 ,  H04B7/0617 ,  H04B17/12 ,  H04B17/20 ,  H04W16/28

摘要： A radio base station apparatus provided with an array antenna having a plurality of antenna elements for calibrating a phase difference among the array antenna elements. The base station has a probe signal adding unit which divides one probe signal and adds the divided probe signals to each receive signals received by the plurality of antenna elements. A probe data extracting unit extracts the probe data from the receive signals added with the probe signal. A phase calibration calculation unit calculates correlating phase calibration values required for calibrating a phase of each receive signal based on the probe data extracted by the probe signal extracting unit. A phase calibration unit calibrates a phase difference among the array antenna elements by calibrating the phase of the each receive signal based on the phase calibration from the phase calibration calculation unit.

摘要翻译： 一种具有阵列天线的无线基站装置，具有多个天线元件，用于校准阵列天线元件之间的相位差。 基站具有探测信号添加单元，其分割一个探测信号，并将划分的探测信号加到由多个天线元件接收的每个接收信号。 探测数据提取单元从添加有探测信号的接收信号中提取探测数据。 相位校正计算单元基于由探测信号提取单元提取的探测数据来计算校准每个接收信号的相位所需的相关校准值。 相位校准单元通过基于来自相位校准计算单元的相位校准来校准每个接收信号的相位来校准阵列天线元件之间的相位差。

公开(公告)号：US20090005106A1

公开(公告)日：2009-01-01

申请号：US12198913

申请日：2008-08-27

申请人： Riaz Esmailzadeh ,  Takashi Yano ,  Nobukazu Doi

发明人： Riaz Esmailzadeh ,  Takashi Yano ,  Nobukazu Doi

IPC分类号： H04B7/00

CPC分类号： H04W52/24 ,  H04W52/362

摘要： A method and apparatus for controlling the power of a signal transmitted between a base station and a mobile terminal which constitute a mobile communication system. At least one of the base station and the mobile terminal has functions to compare a predetermined reference value and a necessary transmission power obtained as a result of transmission power control in order to compensate for a signal intensity fluctuation occurring on a link between the base station and the mobile terminal, temporarily stopping the transmission if the necessary transmission power is larger than a predetermined permissible value, and transmit the signal if the necessary transmission power is equal to or smaller than the predetermined permissible value.

摘要翻译： 一种用于控制在构成移动通信系统的基站和移动终端之间传输的信号的功率的方法和装置。 基站和移动终端中的至少一个具有将预定参考值和作为发送功率控制的结果获得的必要发送功率进行比较的功能，以便补偿基站与基站之间的链路上发生的信号强度波动 如果必要的发送功率大于预定的允许值，则暂时停止发送，并且如果必要的发送功率等于或小于预定的允许值则发送该信号。

公开(公告)号：US07353032B2

公开(公告)日：2008-04-01

申请号：US11633127

申请日：2006-12-04

申请人： Atsushi Ogino ,  Takashi Yano ,  Katsuhiko Tsunehara ,  Ryota Yamasaki ,  Masaaki Shida ,  Hideya Suzuki ,  Nobukazu Doi

发明人： Atsushi Ogino ,  Takashi Yano ,  Katsuhiko Tsunehara ,  Ryota Yamasaki ,  Masaaki Shida ,  Hideya Suzuki ,  Nobukazu Doi

IPC分类号： H04Q7/20

CPC分类号： H04W64/00 ,  G01S5/0054 ,  G01S5/0081 ,  G01S5/021 ,  G01S5/06

摘要： A method, system, and apparatus are provided for detecting a position of a terminal in a network accurately without a GPS receiver. In one example, a method for locating a position of a terminal includes calculating a position of a base station; detecting a clock time difference between the base station and another base station; measuring a reception timing of a signal received by the base station from the terminal; and locating the position of the terminal using at least the position of the base station, the clock time difference, and the reception timing.

摘要翻译： 提供了一种方法，系统和装置，用于在没有GPS接收器的情况下准确地检测终端在网络中的位置。 在一个示例中，用于定位终端的位置的方法包括计算基站的位置; 检测基站与另一基站之间的时钟时间差; 测量由基站从终端接收的信号的接收定时; 以及使用至少基站的位置，时钟时间差和接收定时来定位终端的位置。

公开(公告)号：US07336697B2

公开(公告)日：2008-02-26

申请号：US10786092

申请日：2004-02-26

申请人： Yasuo Ohgoshi ,  Takashi Yano ,  Nobukazu Doi

发明人： Yasuo Ohgoshi ,  Takashi Yano ,  Nobukazu Doi

IPC分类号： H04B1/00

CPC分类号： H04B1/707 ,  H04B7/2628

摘要： A code division multiple access (CDMA) mobile communication system with improvements to permit stable reception with a minimum of bit error. The system includes a base station and a mobile station for communicating with the base station. The mobile station includes an oscillator, a radio frequency demodulator for demodulating a radio frequency band signal received from the base station by use of a first signal from the oscillator, a radio frequency modulator for modulating a second signal to be transmitted by use of the first signal from the oscillator, and an antenna for receiving the radio frequency band signal transmitted from the base station, and for transmitting the modulated second signal to the base station. An oscillation frequency of the oscillator is controlled by use of a change of phase shift detected using the demodulated radio frequency band signal received from the base station.

摘要翻译： 具有改进的码分多址（CDMA）移动通信系统，以允许以最小的位错误的稳定的接收。 该系统包括用于与基站通信的基站和移动站。 移动台包括振荡器，用于通过使用来自振荡器的第一信号来解调从基站接收的无线电频带信号的射频解调器，用于通过使用第一信号调制要发送的第二信号的射频调制器 来自振荡器的信号，以及用于接收从基站发送的射频信号的天线，并用于将调制的第二信号发送到基站。 通过使用从基站接收的解调的无线电频带信号检测到的相移的变化来控制振荡器的振荡频率。

公开(公告)号：US20070086375A1

公开(公告)日：2007-04-19

申请号：US11637044

申请日：2006-12-12

申请人： Riaz Esmailzadeh ,  Takashi Yano ,  Nobukazu Doi

发明人： Riaz Esmailzadeh ,  Takashi Yano ,  Nobukazu Doi

IPC分类号： H04Q7/00

CPC分类号： H04W72/1278 ,  H04B1/707 ,  H04B7/2628 ,  H04W74/008 ,  H04W74/04 ,  H04W74/0833

摘要： In order to accomplish efficient communication of data between a base station and a plurality of mobile terminals, particular orthogonal codes are transmitted from the mobile stations to the base station as alert signals indicating the presence of data to be transmitted. The base station checks whether particular orthogonal codes are contained in the alert signals, and when the particular orthogonal codes are detected in the alert signals, information representing the detected orthogonal codes and the schedules for transmitting the data from the mobile terminals to the base station are transmitted from the base station to the mobile terminals as an alert response to the alert signals. When the information representing the orthogonal codes used for the alert signals are contained in the alert response transmitted from the base station to the mobile terminals, the data waiting to be transmitted is transmitted from the mobile terminals to the base station according the data transmission schedules in the alert response.

摘要翻译： 为了在基站和多个移动终端之间实现数据的有效通信，将特定的正交码从移动台发送到基站，作为指示要发送的数据的存在的警报信号。 基站检查警报信号中是否包含特定正交码，并且当在警报信号中检测到特定的正交码时，表示检测到的正交码的信息和用于从移动终端向基站发送数据的时间表是 从基站发送到移动终端作为对警报信号的警报响应。 当表示用于警报信号的正交码的信息被包含在从基站发送到移动终端的警报响应中时，等待发送的数据根据​​数据传输时间表从移动终端发送到基站 警报响应。

公开(公告)号：US07013147B1

公开(公告)日：2006-03-14

申请号：US09616314

申请日：2000-07-17

申请人： Mikio Kuwahara ,  Nobukazu Doi

发明人： Mikio Kuwahara ,  Nobukazu Doi

IPC分类号： H04Q7/20

CPC分类号： H04W64/00

摘要： The invention intends to solve a problem that an S/I ratio of a signal from a target base station deteriorates when there is a terminal near another base station. For this purpose, a signal replica of the signal from the nearby base station is generated and the replica is subtracted from a receiving signal. A signal of the target base station is detected from the resultant receiving signal. The signal from the nearby base station is deleted from the denominator of the S/I ratio, thereby increasing the S/I ratio.

摘要翻译： 本发明意在解决当在另一个基站附近有终端时来自目标基站的信号的S / I比恶化的问题。 为此，产生来自附近基站的信号的信号副本，并从接收信号中减去副本。 从所得到的接收信号中检测目标基站的信号。 来自附近基站的信号从S / I比的分母中删除，从而增加S / I比。

公开(公告)号：US06731905B2

公开(公告)日：2004-05-04

申请号：US09801728

申请日：2001-03-09

申请人： Atsushi Ogino ,  Hideya Suzuki ,  Tomoaki Ishifuji ,  Nobukazu Doi

发明人： Atsushi Ogino ,  Hideya Suzuki ,  Tomoaki Ishifuji ,  Nobukazu Doi

IPC分类号： H04B715

CPC分类号： H04B7/155

摘要： In a P-MP fixed wireless access system using quasi-millimeter and millimeter wave bands, a relaying path is autonomously set up for subscriber stations without the need for additional provision of a repetition radio circuit using a costly MMIC. A subscriber station in the fixed wireless access system is provided with a repeating function for relaying signals between a different subscriber station and a base station, a buffer memory for temporarily storing signals to be communicated therebetween, and a table for registering information for identifying a relaying path between an own reference wireless station and a lower-level subscriber station for signal repetition. The base station is provided with a table in which, in order to perform signal communication with an arbitrary subscriber registered in the base station, routing information is registered for determining whether or not to set up a relaying path via a different subscriber station registered in the base station.

摘要翻译： 在使用准毫米波段和毫米波段的P-MP固定无线接入系统中，为用户站自主设置中继路径，而无需使用昂贵的MMIC额外提供重复无线电电路。 在固定无线接入系统中的用户台被提供有用于在不同的用户台和基站之间中继信号的重复功能，用于临时存储要在其间通信的信号的缓冲存储器和用于登记用于识别中继的信息的表 用于信号重复的自身参考无线站和较低级用户站之间的路径。 基站设置有表格，其中为了与在基站中登记的任意用户进行信号通信，登记路由信息以确定是否经由登记在该基站中的不同用户站建立中继路径 基站。

公开(公告)号：US06721296B2

公开(公告)日：2004-04-13

申请号：US10217404

申请日：2002-08-14

申请人： Yasuo Ohgoshi ,  Takashi Yano ,  Nobukazu Doi

发明人： Yasuo Ohgoshi ,  Takashi Yano ,  Nobukazu Doi

IPC分类号： H04B7216

CPC分类号： H04B1/707 ,  H04B7/2628

摘要： A code division multiple access (CDMA) mobile communication system with improvements to permit stable reception with a minimum of bit error. The system comprises a voltage-controlled oscillator for supplying a carrier to a radio frequency quadrature demodulator, and a frequency controller for detecting a frequency error from a phase correction signal of the first step to generate a control signal that controls the oscillator. The frequency controller includes an extracting circuit and an integrating circuit. The extracting circuit extracts a phase change based on the frequency error derived from the phase correction signal of the first step and from a signal preceding that signal by a predetermined delay time. The integrating circuit integrates the phase change and outputs the integrated result as the control signal. The predetermined delay time is preferably set within a range not exceeding the delay time needed for averaging by an averaging circuit that receives the phase correction signal of the first step and outputs a phase correction signal. The carrier to a radio frequency quadrature modulator is preferably supplied from the voltage-controlled oscillator.

摘要翻译： 具有改进的码分多址（CDMA）移动通信系统，以允许以最小的位错误的稳定的接收。 该系统包括用于向无线电频率正交解调器提供载波的压控振荡器和用于从第一步骤的相位校正信号检测频率误差的频率控制器，以产生控制振荡器的控制信号。 频率控制器包括提取电路和积分电路。 提取电路基于从第一步骤的相位校正信号导出的频率误差和该信号之前的信号预定的延迟时间提取相位变化。 积分电路对相位进行了积分，并输出积分结果作为控制信号。 预定的延迟时间优选地设定在不超过接收第一级的相位校正信号的平均电路进行平均所需的延迟时间的范围内并输出相位校正信号。 无线电频率正交调制器的载波优选地从压控振荡器提供。