利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

26 条记录 (耗时 0.03 秒)

    Transmission power control apparatus
    2.
    发明授权
    Transmission power control apparatus 失效

    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.

    CDMA receiver
    4.
    发明授权
    CDMA receiver 有权
    CDMA接收机

    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。

    Error rate measurement apparatus for a mobile radio communications system
    5.
    发明授权
    Error rate measurement apparatus for a mobile radio communications system 失效
    用于移动无线电通信系统的误码率测量装置

    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。

    Searcher for CDMA receiver apparatus
    6.
    发明授权
    Searcher for CDMA receiver apparatus 有权
    CDMA接收机设备的搜索者

    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。

    Synchronization detecting apparatus
    7.
    发明授权
    Synchronization detecting apparatus 有权
    同步检测装置

    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。

    Apparatus producing continuous stream of correlation values
    9.
    发明授权
    Apparatus producing continuous stream of correlation values 有权
    产生连续流相关值的装置

    公开(公告)号：US07145938B2

    公开(公告)日：2006-12-05

    申请号：US09734856

    申请日：2000-12-12

    申请人： Masatsugu Takeuchi ,  Morihiko Minowa ,  Noriyuki Kawaguchi

    发明人： Masatsugu Takeuchi ,  Morihiko Minowa ,  Noriyuki Kawaguchi

    IPC分类号： H04B1/69 ,  H04B1/707

    CPC分类号： H04B1/708 ,  H04B1/7075 ,  H04B1/7117 ,  H04B2201/70707

    摘要： An apparatus includes a plurality of received-signal registers which receive and store therein a plurality of respective received-signal sequences, a selector which selects one of the received signal sequences stored in the received-signal registers, at least one code register which stores therein a de-spreading-code sequence, a multiplication circuit which multiplies the selected one of the received-signal sequences by the de-spreading-code sequence, and a summation circuit which obtains a sum of results of the multiplication to obtain a correlation between the selected one of the received-signal sequences and the de-spreading-code sequence.

    摘要翻译： 一种装置包括多个接收信号寄存器，其中接收和存储多个相应的接收信号序列，选择器选择存储在接收信号寄存器中的接收信号序列中的一个，存储在其中的至少一个码寄存器 去扩展码序列，乘法电路，其通过去扩展码序列将所选择的一个接收信号序列相乘，以及求和电路，其获得乘法结果的和以获得所述解扩展码序列之间的相关性 选择的一个接收信号序列和解扩展码序列。

    Wireless base station device and path search method
    10.
    发明申请
    Wireless base station device and path search method 审中-公开
    无线基站设备和路径搜索方法

    公开(公告)号：US20060068790A1

    公开(公告)日：2006-03-30

    申请号：US11064855

    申请日：2005-02-25

    申请人： Toshiro Sawamoto ,  Morihiko Minowa

    发明人： Toshiro Sawamoto ,  Morihiko Minowa

    IPC分类号： H04Q7/20

    CPC分类号： H04B1/7113 ,  H04B1/7117 ,  H04W36/0083 ,  H04W36/08 ,  H04W36/32 ,  H04W56/00 ,  H04W56/0005

    摘要： In a wireless base station device that communicates with a mobile device via an advance base station, the reception timing determination portion determines the reception timing of data that is transmitted by a mobile device that exists in a cell of the advance base station on the basis of the distance between the wireless base station device and the advance base station and the cell radius of the advance base station. The data reception portion receives data from the mobile device by performing a reception operation at the reception timing, the delay profile creation portion creates delay profiles on the basis of the received data, and the path detection portion detects paths from the mobile device on the basis of the delay profiles.

    摘要翻译： 在经由提前基站与移动装置进行通信的无线基站装置中，接收定时确定部分基于先前基站的小区中存在的移动装置发送的数据的接收定时 无线基站装置与前进基站之间的距离以及前进基站的小区半径。 数据接收部分通过在接收定时执行接收操作从移动设备接收数据，延迟分布创建部分基于接收到的数据创建延迟分布，并且路径检测部分基于该移动设备检测路径 的延迟谱。