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    Radio communication system and communication station
    1.
    发明申请
    Radio communication system and communication station 审中-公开
    无线电通信系统和通信站

    公开(公告)号：US20050111402A1

    公开(公告)日：2005-05-26

    申请号：US10779575

    申请日：2004-02-13

    申请人： Manabu Sawada ,  Shigeki Kawai ,  Hiroshi Harada ,  Masayuki Fujise

    发明人： Manabu Sawada ,  Shigeki Kawai ,  Hiroshi Harada ,  Masayuki Fujise

    IPC分类号： H04L29/08 ,  H04W72/12 ,  H04Q7/00

    CPC分类号： H04W72/1257 ,  H04L1/188 ,  H04L5/0005 ,  H04L5/0055

    摘要： In a radio communication system, a base station sends each of n send packets to a terminal station in parallel through n channels as they are in packet unit instead of dividing each of n send packets to send the same to the terminal station. It is possible in the base station to eliminate the need for a processing of dividing send packets and processing of resending divided send packets. It is also possible in the terminal station to eliminate the need of a configuration for receiving the divided send packets.

    摘要翻译： 在无线通信系统中，基站通过n个信道并行地将n个发送分组中的每一个发送到终端站，而不是将n个发送分组中的每一个发送到终端站。 在基站中可以消除对分组发送分组的处理和重发分组发送分组的处理的需要。 终端也可以不需要用于接收划分的发送分组的配置。

    Radio communication using a plurality of base stations
    2.
    发明授权
    Radio communication using a plurality of base stations 有权
    使用多个基站的无线电通信

    公开(公告)号：US07286504B2

    公开(公告)日：2007-10-23

    申请号：US10187800

    申请日：2002-07-03

    申请人： Manabu Sawada ,  Kunihiko Sasaki ,  Hiroshi Harada ,  Masayuki Fujise

    发明人： Manabu Sawada ,  Kunihiko Sasaki ,  Hiroshi Harada ,  Masayuki Fujise

    IPC分类号： H04Q7/00 ,  H04Q7/20 ,  H04J3/24

    CPC分类号： H04W16/00

    摘要： A communication zone is defined by a plurality of cells, which are separated from one another and has respective fixed base stations. The base stations in the first cell and the last cell are capable of bidirectional communication with a mobile station, while other base stations are capable of unidirectional communication. The base stations are connected to a zone control station, which controls communications with the mobile station within the zone.

    摘要翻译： 通信区由多个单元定义，多个单元彼此分离并具有相应的固定基站。 第一小区和最后一个小区中的基站能够与移动台双向通信，而其他基站能够进行单向通信。 基站连接到区域控制站，该区域控制站控制与该区域内的移动站的通信。

    Receiving device, receiving method, and program
    3.
    发明授权
    Receiving device, receiving method, and program 失效
    接收设备，接收方法和程序

    公开(公告)号：US07313180B2

    公开(公告)日：2007-12-25

    申请号：US10789672

    申请日：2004-02-27

    申请人： Hiroshi Harada ,  Masayuki Fujise ,  Ryuuhei Funada ,  Manabu Sawada

    发明人： Hiroshi Harada ,  Masayuki Fujise ,  Ryuuhei Funada ,  Manabu Sawada

    IPC分类号： H03H7/30

    CPC分类号： H04L25/03159 ,  H04L25/0202 ,  H04L2025/03414 ,  H04L2025/03522 ,  H04L2025/03783

    摘要： A receiving unit of a receiving device receives a signal arriving thereto through a transmission path as a reception signal. A delay unit outputs a delay signal obtained by delaying the reception signal by a predetermined delay time. An estimation unit estimates a transmission path characteristic. An equalizer/demodulator compensates for the delay signal with the transmission path characteristic, demodulates the compensation result, and outputs the demodulation result as a transmission signal. A replica unit compensates for the reception signal with the transmission path characteristic, demodulates the compensation result, modulates the demodulation result, and outputs the modulation result as a replica signal. The estimation unit estimates a transmission path characteristic by comparing the reception signal with the replica signal. The predetermined delay time is equal to or smaller than a time required for the processes by the replica unit and the estimation unit.

    摘要翻译： 接收装置的接收单元通过传输路径接收到达其的信号作为接收信号。 延迟单元输出通过将接收信号延迟预定延迟时间而获得的延迟信号。 估计单元估计传输路径特性。 均衡器/解调器用传输路径特性补偿延迟信号，解调补偿结果，并输出解调结果作为传输信号。 复制单元用传输路径特性补偿接收信号，解调补偿结果，调制解调结果，并输出调制结果作为复制信号。 估计单元通过将接收信号与复制信号进行比较来估计传输路径特性。 预定延迟时间等于或小于复制单元和估计单元处理所需的时间。

    Receiving apparatus, receiving method, program and information recording medium
    5.
    发明授权
    Receiving apparatus, receiving method, program and information recording medium 有权
    接收装置，接收方法，程序和信息记录介质

    公开(公告)号：US06959052B2

    公开(公告)日：2005-10-25

    申请号：US10092697

    申请日：2002-03-06

    申请人： Hiroshi Harada ,  Masayuki Fujise ,  Ryuuhei Funada ,  Manabu Sawada ,  Kunihiko Sasaki

    发明人： Hiroshi Harada ,  Masayuki Fujise ,  Ryuuhei Funada ,  Manabu Sawada ,  Kunihiko Sasaki

    IPC分类号： H04J11/00 ,  H04B1/10 ,  H04L25/02 ,  H04L25/03 ,  H04L27/26 ,  H03D1/00 ,  H04L27/06

    CPC分类号： H04L27/2647 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/0224 ,  H04L2025/03414

    摘要： A channel evaluator acquires a change predicted value from a known symbol, and a compensator compensates for a first symbol using the change predicted value. A demodulator restores a portion corresponding to this symbol with another subcarrier. A replica generator acquires a transmission replica of the restored symbol. The channel evaluator performs complex division on the replica with the symbol to acquire an amplitude phase ratio. A detector compares the amplitude phase ratio with an amplitude phase ratio acquired immediately previously. In case where an elimination condition is satisfied, the detector disregards the amplitude phase ratio acquired currently and uses an immediately previous value instead, an averaging unit averages amplitude phase ratios to acquire a next change predicted value, and the compensator compensates for a next symbol using the change predicted value. Hereinafter, the sequence of processes is repeated.

    摘要翻译： 信道评估器从已知符号获取改变预测值，并且补偿器使用改变预测值来补偿第一符号。 解调器用另一副载波来恢复对应于该符号的部分。 副本生成器获取已恢复符号的传输副本。 信道评估器对具有符号的副本执行复数除法以获得幅度相位比。 检测器将幅度相位比与立即获得的振幅相位比进行比较。 在满足消除条件的情况下，检测器忽略当前获取的幅度相位比，并且代替使用紧接在前的值，平均单元对振幅相位比进行平均以获取下一个改变预测值，并且补偿器使用 变化预测值。 以下，重复处理顺序。

    Decoder device for decoding packet signals composed of control codes and data codes
    8.
    发明授权
    Decoder device for decoding packet signals composed of control codes and data codes 失效
    用于解码由控制码和数据码组成的分组信号的解码器装置

    公开(公告)号：US06947501B2

    公开(公告)日：2005-09-20

    申请号：US09867727

    申请日：2001-05-29

    申请人： Shigeki Kawai ,  Manabu Sawada ,  Kunihiko Sasaki

    发明人： Shigeki Kawai ,  Manabu Sawada ,  Kunihiko Sasaki

    IPC分类号： H04L27/18 ,  H04J11/00 ,  H04L1/00 ,  H04L27/00 ,  H04L27/26 ,  H04L27/34 ,  H04L29/06 ,  H04L27/06 ,  G01S1/24 ,  G10L21/00

    CPC分类号： H04L1/0071 ,  H04L1/0009 ,  H04L1/0045 ,  H04L27/2647

    摘要： A packet signal, formed according to an orthogonal frequency division multiplexing (OFDM) format, received by a receiver is decoded in a decoder device of the receiver. The packet signal includes a data code and a control code having a formula for decoding the data code. The control code is first decoded and analyzed to obtain the decoding formula contained therein. The data code is decoded during a period in which the control code is being analyzed, based on plural decoding formulae one of which coincides with the decoding formula contained in the control code. Data signals decoded based on the respective decoding formulae are sent to an output selector together with the decoding formula obtained from the control code. The output selector selects a data signal which is decoded based on a decoding formula that coincides with the decoding formula obtained from the control code.

    摘要翻译： 由接收机接收的根据正交频分复用（OFDM）格式形成的分组信号在接收机的解码器装置中解码。 分组信号包括数据代码和具有用于解码数据代码的公式的控制代码。 首先对控制码进行解码和分析，以获得其中包含的解码公式。 基于多个解码公式，其中一个与控制代码中包含的解码公式一致，在分析控制代码的时段期间对数据代码进行解码。 基于各个解码公式解码的数据信号与从控制码获得的解码公式一起被发送到输出选择器。 输出选择器基于与从控制码获得的解码公式一致的解码公式来选择解码的数据信号。

    Communication system and method having communication data dividing and transmitting functions
    9.
    发明授权
    Communication system and method having communication data dividing and transmitting functions 有权

    公开(公告)号：US07136917B2

    公开(公告)日：2006-11-14

    申请号：US10100052

    申请日：2002-03-19

    申请人： Shigeki Kawai ,  Manabu Sawada

    发明人： Shigeki Kawai ,  Manabu Sawada

    IPC分类号： G06F15/16

    CPC分类号： H04L69/14 ,  H04W28/06 ,  H04W28/14 ,  H04W88/04 ,  H04W88/14

    摘要： In a communication system, a content server reads required data from a content database and transmits the data by packet communications over public communication lines, and a network management server receives and stores the required information from the public communication lines. The network management server sends the temporarily stored data to plural transmitter stations. Each transmitter station has a corresponding dividing device. Each dividing device receives and relays to the linked transmitter station only the amount of data required for transmission to the linked transmitter station. The remaining data is simply passed by the dividing device to the next dividing device without processing the data in any way.

    Soft decision correction method, receiver using the same, and program therefor
    10.
    发明授权
    Soft decision correction method, receiver using the same, and program therefor 有权
    软决策校正方法，接收机使用相同，并进行编程

    公开(公告)号：US07971128B2

    公开(公告)日：2011-06-28

    申请号：US11942500

    申请日：2007-11-19

    申请人： Yasunobu Sugiura ,  Manabu Sawada

    发明人： Yasunobu Sugiura ,  Manabu Sawada

    IPC分类号： H03M13/00

    CPC分类号： H04L25/067 ,  H04L1/0047 ,  H04L1/0059

    摘要： A soft decision value correction method can detect interference occurring in a desired wave and correct a soft decision value where a received power difference between the desired wave and an interference wave is small. A receiver and a program capable of performing the soft decision value correction method are provided. In the receiver an EVM calculator sets a detection distance for a primary modulation symbol of the first subcarrier in the first OFDM symbol as a reference, and calculates an evaluation value ΔEl,m that is an index of a distance between the primary modulation symbol of the reception signal and the reference. When the evaluation value ΔEl,m is greater than or equal to a normal threshold, a weighting controller infers that interference occurred, and multiplies a soft decision value Wl,m,n by a weighting factor to calculate a corrected soft decision value Vl,m,n.

    摘要翻译： 软判决值校正方法可以检测在期望波中发生的干扰并校正所需波和干扰波之间的接收功率差小的软判决值。 提供一种能够执行软判决值校正方法的接收机和程序。 在接收机中，EVM计算器将第一OFDM符号中的第一子载波的一次调制符号的检测距离设置为基准，并且计算作为一次调制符号之间的距离的指标的评估值“Dgr; El” 的接收信号和参考。 当评估值＆Dgr; El，m大于或等于正常阈值时，加权控制器推测发生干扰，并将软判决值W1，m，n乘以加权因子，以计算校正软判决值V1 ，m，n。