公开(公告)号：US06909902B1

公开(公告)日：2005-06-21

申请号：US09583524

申请日：2000-05-31

申请人： Kensuke Sawada ,  Noriyuki Kawaguchi ,  Satoshi Nakamura ,  Tokuro Kubo ,  Dai Kimura ,  Morihiko Minowa ,  Kazuo Nagatani

发明人： Kensuke Sawada ,  Noriyuki Kawaguchi ,  Satoshi Nakamura ,  Tokuro Kubo ,  Dai Kimura ,  Morihiko Minowa ,  Kazuo Nagatani

IPC分类号： G01S5/02 ,  H04W60/00 ,  H04W64/00 ,  H04Q7/20

CPC分类号： H04W64/00

摘要： This invention relates to a radio base station equipment and a mobile station equipment in a mobile communication system that operate as determination stations adapted for a predetermined navigation or associate with other radio base station(s) or mobile station(s) to radio-determine the location of a desired mobile station. The mobile communication system achieves a radio determination economically and reliably while flexibly adapting itself to the substantial traffic distribution and transmission characteristics in individual wireless zones as well as the zone configuration, channel allocation, the procedure of channel control, and the structure of hardware.

摘要翻译： 本发明涉及一种移动通信系统中的无线电基站设备和移动台设备，该移动通信系统作为适用于预定导航或与其他无线电基站或移动台关联的确定站进行无线电确定 所需移动台的位置。 移动通信系统经济可靠地实现无线电确定，同时灵活地适应各个无线区域中的实际业务分布和传输特性，以及区域配置，信道分配，信道控制过程和硬件结构。

公开(公告)号：US07062287B2

公开(公告)日：2006-06-13

申请号：US10072058

申请日：2002-02-08

申请人： Satoshi Nakamura ,  Morihiko Minowa ,  Noriyuki Kawaguchi ,  Kensuke Sawada ,  Tokuro Kubo ,  Dai Kimura

发明人： Satoshi Nakamura ,  Morihiko Minowa ,  Noriyuki Kawaguchi ,  Kensuke Sawada ,  Tokuro Kubo ,  Dai Kimura

IPC分类号： H04B7/00 ,  H04Q7/20

CPC分类号： H04W52/12 ,  H04W52/20 ,  H04W52/24 ,  H04W52/283

摘要： In a transmission power control apparatus for measuring SIR, which is a ratio of a receive signal to an interference signal, and controlling transmission power of a mobile station in such a manner that the measured SIR will agree with a target SIR, a fading detector detects the rate of change in fading, a correction unit corrects the target SIR based upon the rate of change in fading, and a transmission power control command creation unit creates a command for controlling transmission power of the mobile station in such a manner that the measured SIR will agree with the corrected target SIR, and transmits this command. Further, a searcher detects multipath and the levels of signals that arrive via respective ones of the paths, a level-difference calculation unit calculates level differences between the paths, a correction unit corrects the target SIR based upon the level differences between the paths, and a transmission power control command creation unit creates a command for controlling transmission power of the mobile station in such a manner that the measured SIR will agree with the corrected target SIR, and transmits this command.

公开(公告)号：US07170925B2

公开(公告)日：2007-01-30

申请号：US10074939

申请日：2002-02-13

申请人： Noriyuki Kawaguchi ,  Satoshi Nakamura ,  Kensuke Sawada ,  Dai Kimura ,  Tokuro Kubo ,  Morihiko Minowa

发明人： Noriyuki Kawaguchi ,  Satoshi Nakamura ,  Kensuke Sawada ,  Dai Kimura ,  Tokuro Kubo ,  Morihiko Minowa

IPC分类号： H04B1/707

CPC分类号： H04B1/712 ,  H04B1/7115 ,  H04B2201/7071

摘要： In a CDMA receiver for applying despread processing to direct wave or delayed waves that arrive via each path of multiple paths, applying synchronous detection processing to the despread signals obtained, combining the detection signals of respective paths and discriminating the received data on the basis of the combined signal, (1) a weighting unit provided for every path measures power of delayed received waves that arrive via its own path and, if the reception power is less than a set level (breakpoint level), subjects an output signal to weighting conforming to the reception power; (2) a RAKE combiner combines signals output from the weighting units of the respective paths; and (3) a data discrimination unit discriminates receive data based upon the output signal of the combiner.

摘要翻译： 在用于对通过多个路径的每条路径到达的直达波或延迟波的解扩处理的CDMA接收机中，对获得的去扩展信号应用同步检测处理，组合各个路径的检测信号，并基于 组合信号，（1）为每个路径提供的加权单元测量通过其自身路径到达的延迟接收波的功率，并且如果接收功率小于设定电平（断点电平），则对输出信号进行加权以符合 接待能力; （2）RAKE组合器组合从相应路径的加权单元输出的信号; 和（3）数据鉴别单元基于组合器的输出信号来鉴别接收数据。

公开(公告)号：US06754256B1

公开(公告)日：2004-06-22

申请号：US09387675

申请日：1999-08-31

申请人： Tokuro Kubo ,  Morihiko Minowa ,  Kensuke Sawada ,  Noriyuki Kawaguchi ,  Koji Matsuyama ,  Yoshihiko Asano

发明人： Tokuro Kubo ,  Morihiko Minowa ,  Kensuke Sawada ,  Noriyuki Kawaguchi ,  Koji Matsuyama ,  Yoshihiko Asano

IPC分类号： H04B169

CPC分类号： H04B1/7075 ,  H04B1/70755 ,  H04B1/709

摘要： A searcher for a CDMA receiver apparatus includes a correlator obtaining a correlation value between a spreading code sequence and a spreading code sequence within a received signal, and a non-linear processor carrying out a non-linear conversion to convert one of the correlation value and a predetermined value indicative of the correlation value into correlation value information which has a data width smaller than that of the one of the correlation value and the predetermined value. The correlation value information is used to carry out a search process to search for a synchronizing timing with respect to the spreading code sequence within the received signal.

摘要翻译： 用于CDMA接收机装置的搜索器包括获得接收信号内的扩展码序列和扩展码序列之间的相关值的相关器，以及执行非线性转换的非线性处理器，以将相关值和 将相关值指示为相关值信息的预定值，该相关值信息的数据宽度小于相关值和预定值之一的数据宽度。 相关值信息用于执行搜索处理，以搜索关于接收信号内的扩展码序列的同步定时。

公开(公告)号：US07366228B2

公开(公告)日：2008-04-29

申请号：US09918964

申请日：2001-07-31

申请人： Morihiko Minowa ,  Dai Kimura ,  Noriyuki Kawaguchi

发明人： Morihiko Minowa ,  Dai Kimura ,  Noriyuki Kawaguchi

IPC分类号： H04B1/00

CPC分类号： H04B1/7075 ,  H04B2201/70701 ,  H04L25/0232

摘要： In a channel estimating circuit, a Sync Word is demodulated by using a channel estimation value not with a symbol or a slot including the Sync Word to be demodulated, but with its preceding and succeeding symbols or slots. Furthermore, in a channel estimation process, if a Synch Word to be demodulated is included in any of groups into which a plurality of symbols are divided, the Sync Word is demodulated by using a channel estimation value obtained with the channel estimation process using not this group but another group.

摘要翻译： 在信道估计电路中，通过使用不具有符号的信道估计值或包括要解调的同步字，但具有其前和后符号或时隙的信道估计值来解调同步字。 此外，在信道估计处理中，如果要解调的同步字被包括在划分多个符号的组中的任一组中，则使用不是使用信道估计处理获得的信道估计值来解调同步字 小组，但另一组。

公开(公告)号：US07133475B2

公开(公告)日：2006-11-07

申请号：US10113736

申请日：2002-04-01

申请人： Noriyuki Kawaguchi ,  Morihiko Minowa ,  Dai Kimura

发明人： Noriyuki Kawaguchi ,  Morihiko Minowa ,  Dai Kimura

IPC分类号： H03K9/00 ,  H04B1/707

CPC分类号： H04L7/042

摘要： The invention relates to a radio receiver which receives reception waves modulated with a frame being a sequence of slots and reproduces transmission information that is distributed to the slots. An object of the invention is to increase the reliability of channel inference and improve the transmission quality without substantially altering a basic configuration. A radio receiver of the invention performs quasi-synchronous detection on reception waves modulated with a frame; determines an error in a sequence of first vectors and a sequence of second vectors as an average of deviations of particular symbol positions to be indicated by the sequence of first vectors indicating a sequence of words included in each slot in a signal space, and the sequence of second vectors indicating known information included in the slots; and compensates for the error in the signal space.

公开(公告)号：US06335923B1

公开(公告)日：2002-01-01

申请号：US08810707

申请日：1997-03-03

申请人： Tokurou Kubo ,  Morihiko Minowa ,  Satoshi Nakamura ,  Kensuke Sawada ,  Kazuhisa Obuchi

发明人： Tokurou Kubo ,  Morihiko Minowa ,  Satoshi Nakamura ,  Kensuke Sawada ,  Kazuhisa Obuchi

IPC分类号： H04B7216

摘要： A mobile communication terminal receives a control command transmitted on a down-link from a base station and controls a transmission power so that a reception state on an up-link becomes approximately constant at the base station. The mobile communication terminal is provided with a moving speed inferring unit which infers a moving speed of the mobile communication terminal, and a transmission power controller which varies a varying width of the transmission power depending on the moving speed of the mobile communication terminal.

公开(公告)号：US06711384B2

公开(公告)日：2004-03-23

申请号：US10233789

申请日：2002-09-03

申请人： Tokuro Kubo ,  Morihiko Minowa

发明人： Tokuro Kubo ,  Morihiko Minowa

IPC分类号： H04B7216

CPC分类号： H04B7/2628 ,  H04B17/318

摘要： A communication control apparatus installed in a base station or a mobile station in mobile communications system estimates the relative moving speed of an opposing station, and adjusts the values of communication parameters for a searcher, a transmission power control unit, an absolute synchronous detector unit, etc. according to an obtained moving speed.

摘要翻译： 安装在移动通信系统中的基站或移动站中的通信控制装置估计对方站的相对移动速度，并调整搜索者，发送功率控制单元，绝对同步检测器单元的通信参数的值， 根据获得的移动速度等。

公开(公告)号：US5937005A

公开(公告)日：1999-08-10

申请号：US655389

申请日：1996-05-30

申请人： Kazuhisa Obuchi ,  Morihiko Minowa ,  Tokuro Kubo

发明人： Kazuhisa Obuchi ,  Morihiko Minowa ,  Tokuro Kubo

IPC分类号： H04L1/00 ,  H04B7/08 ,  H04B7/26 ,  H04B17/00 ,  H04B17/309 ,  H04L1/06 ,  H04W24/00 ,  H04W52/04 ,  H04W52/20 ,  H04W88/02 ,  H04B3/46

CPC分类号： H04L1/203 ,  H04B17/309 ,  H04B7/08 ,  H04W52/20

摘要： An error rate measurement apparatus for a mobile radio communications system, which quickly and accurately measures the error rate of received signals on a real-time basis with simple hardware. The apparatus is equipped with a plurality of receivers for receiving signals from a single transmission source with antennas spaced apart from each other. A bit comparator compares the received signals bit by bit and sends an error detection pulse signal to an error rate calculator if it has detected a bit error. The error rate calculator counts the number of error detection pulse signals sent from the bit comparator for a predetermined period. The error rate calculator then divides this pulse count by the number of incoming bits received during the predetermined period, and further divides the quotient by the number of reception signals that are compared by the bit comparator, thereby obtaining the error rate of the reception signal.

摘要翻译： 一种用于移动无线电通信系统的错误率测量装置，其以简单的硬件快速准确地测量接收信号的误码率。 该装置配备有多个接收机，用于从具有彼此间隔开的天线的单个发射源接收信号。 位比较器逐位比较接收到的信号，如果检测到位错误，则将错误检测脉冲信号发送到错误率计算器。 错误率计算器对位比较器发送的预定周期的错误检测脉冲信号的数量进行计数。 错误率计算器然后将该脉冲计数除以在预定时段内接收到的输入位数，并将商除以由位比较器比较的接收信号的数量，从而获得接收信号的错误率。

公开(公告)号：US07187667B1

公开(公告)日：2007-03-06

申请号：US09322444

申请日：1999-05-28

申请人： Morihiko Minowa ,  Tokuro Kubo

发明人： Morihiko Minowa ,  Tokuro Kubo

IPC分类号： H04B7/216

CPC分类号： H04B7/0865 ,  H04B1/7093 ,  H04B1/7113 ,  H04B1/7117 ,  H04B7/0678 ,  H04B2201/70701 ,  Y02D70/40 ,  Y02D70/444

摘要： An input signal includes spread signals which are respectively transmitted over a plurality of channels. First and second despread demodulators demodulate the spread signals transmitted over first and second communications channels by despreading them with first and second spread codes, respectively. A path detector generates a timing signal for instructing the timing at which the despread demodulators perform the despread operation. The path detector is shared by the first and the second despread demodulators, and operates in a time-division manner.

摘要翻译： 输入信号包括分别在多个通道上发送的扩展信号。 第一和第二解扩解调器通过分别用第一和第二扩展码解扩第一和第二通信信道来解调扩展信号。 路径检测器产生用于指示解扩解调器执行解扩操作的定时的定时信号。 路径检测器由第一和第二解扩解调器共享，并以时分方式操作。