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：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：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：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：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：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：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。

公开(公告)号：US08259654B2

公开(公告)日：2012-09-04

申请号：US12839010

申请日：2010-07-19

申请人： Satoshi Kobori ,  Noriyuki Kawaguchi

发明人： Satoshi Kobori ,  Noriyuki Kawaguchi

IPC分类号： H04W4/00 ,  H04B1/00

CPC分类号： H04B1/7087 ,  H04B1/7117 ,  H04B2201/70701

摘要： A wireless base station apparatus includes a path detecting unit configured to detect a preamble signal sent from a terminal and obtain a back-diffusion timing; a back-diffusion unit configured to execute back-diffusion processing on a message signal sent from the terminal, by using the back-diffusion timing reported from the path detecting unit; and a calculating unit configured to calculate a frequency deviation of the message signal that has been subjected to the back-diffusion processing, based on a pilot signal of the message signal that has been subjected to the back-diffusion processing. The path detecting unit includes an information detecting unit configured to detect a frequency deviation of the preamble signal when detecting the preamble signal and supply the frequency deviation of the preamble signal to the calculating unit as initial value information. The calculating unit includes an information adding unit that calculates the frequency deviation of the message signal by using the initial value information.

摘要翻译： 无线基站装置包括：路径检测单元，被配置为检测从终端发送的前导码信号，并获得反向扩散定时; 反扩散单元，被配置为通过使用从路径检测单元报告的反向扩散定时对从终端发送的消息信号执行反向扩散处理; 以及计算单元，被配置为基于已经进行了反向扩散处理的消息信号的导频信号计算已经进行了反向扩散处理的消息信号的频率偏差。 路径检测单元包括：信息检测单元，被配置为当检测到前导码信号时检测前导信号的频率偏差，并将前导码信号的频率偏差提供给计算单元作为初始值信息。 计算单元包括：信息添加单元，通过使用初始值信息来计算消息信号的频率偏差。