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    Digital radio communications method using multi-level modulation scheme and transmitter and receiver
    33.
    发明授权
    Digital radio communications method using multi-level modulation scheme and transmitter and receiver 失效
    数字无线电通信方法采用多电平调制方案和发射机和接收机

    公开(公告)号：US08270525B2

    公开(公告)日：2012-09-18

    申请号：US12145834

    申请日：2008-06-25

    申请人： Takao Nakagawa ,  Tetsuya Yano ,  Kazuhisa Obuchi

    发明人： Takao Nakagawa ,  Tetsuya Yano ,  Kazuhisa Obuchi

    IPC分类号： H04L25/34

    CPC分类号： H04L27/34 ,  H03M13/256 ,  H03M13/258 ,  H03M13/2957 ,  H03M13/2966 ,  H03M13/356 ,  H04L1/0041 ,  H04L1/006 ,  H04L1/0064 ,  H04L2001/0098

    摘要： A transmitter for use in digital radio communications systems includes: a bit corrector controls bit arrangement in such a manner that a code having high significance, out of multiple codes obtained by coding, is allocated with high priority to a bit having a tendency that the likelihood enlarges at the time of symbol decision on a receiver; a multi-level modulator allocates the code to the multiple bits in accordance with a predetermined symbol arrangement; and a symbol arrangement controller controls the symbol arrangement from equal distance arrangement to another arrangement in accordance with a ratio of the codes different in significance. To control symbol arrangement increases the effect of bit correction and improves an error rate on the receiver.

    摘要翻译： 用于数字无线电通信系统的发射机包括：比特校正器以这样的方式控制比特排列，使得通过编码获得的多个码中具有高重要性的代码被高度优先地分配给具有趋势的比特 在接收者的符号决定时放大; 多级调制器根据预定的符号排列将码分配给多个比特; 并且符号排列控制器根据重要性不同的代码的比例，将符号排列从相等的距离布置控制到另一个排列。 为了控制符号排列，增加了位校正的效果，提高了接收机的误码率。

    Transmission device
    34.
    发明授权
    Transmission device 有权
    传输设备

    公开(公告)号：US08181099B2

    公开(公告)日：2012-05-15

    申请号：US12068717

    申请日：2008-02-11

    申请人： Shunji Miyazaki ,  Kazuhisa Obuchi ,  Tetsuya Yano

    发明人： Shunji Miyazaki ,  Kazuhisa Obuchi ,  Tetsuya Yano

    IPC分类号： G06F11/00 ,  H03M13/00

    CPC分类号： H03M13/2957 ,  H03M13/2903 ,  H03M13/635 ,  H03M13/653

    摘要： Disclosed is a transmission device in a communication system in which a systematic code obtained by systematic encoding of information bits into which dummy bits are inserted and by deleting the dummy bits from the results of the systematic encoding is transmitted and, on the receiving side, the dummy bits which had been deleted on the transmitting side are inserted into the received systematic code, and then decoding is performed. In this transmission device, a dummy bit insertion portion decides the size of the dummy bits to be inserted into the information bits based on a specified code rate or based on the physical channel transmission rate, and uniformly inserts dummy bits of this size into the information bits; a systematic code generation portion performs systematic encoding of the information bits into which the dummy bits are inserted, and deletes the dummy bits from the results of the systematic encoding to generate a systematic code, which is transmitted.

    摘要翻译： 公开了一种通信系统中的发送装置，其中通过系统编码获得的系统代码，其中通过对其中插入有虚拟位的信息位进行系统编码，并且从系统编码的结果中删除虚拟位，并且在接收侧， 在发送侧已经被删除的虚拟位被插入到所接收的系统代码中，然后进行解码。 在该发送装置中，伪比特插入部根据指定的码率或者根据物理信道的传输速率来决定插入到信息比特中的伪比特的大小，并且将该大小的伪比特均匀地插入信息中 位 系统代码生成部分执行插入虚拟位的信息比特的系统编码，并且从系统编码的结果中删除虚拟比特，以生成被发送的系统代码。

    WIRELESS COMMUNICATIONS SYSTEM, BASE STATION, AND MOBILE STATION
    35.
    发明申请
    WIRELESS COMMUNICATIONS SYSTEM, BASE STATION, AND MOBILE STATION 有权
    无线通信系统，基站和移动站

    公开(公告)号：US20110075645A1

    公开(公告)日：2011-03-31

    申请号：US12959808

    申请日：2010-12-03

    申请人： Tetsuya Yano ,  Kazuhisa Obuchi ,  Shunji Miyazaki

    发明人： Tetsuya Yano ,  Kazuhisa Obuchi ,  Shunji Miyazaki

    IPC分类号： H04W4/00

    CPC分类号： H04W36/38 ,  H04B7/2643 ,  H04B7/2656 ,  H04W4/02 ,  H04W36/0088 ,  H04W56/00 ,  H04W72/04 ,  H04W72/0446

    摘要： A wireless communications system including a mobile station MS and base stations BS1 and BS2, wherein one or both of the mobile station MS and the base stations BS1 and BS2 is provided with a unit for notifying information of a frame position with the possibility of transmission of packets based on detection of deterioration of a reception quality and wherein the mobile station MS is provided with a unit for determining a frame position without the possibility of transmission of packets and shifting to a peripheral cell detection mode at this frame position based on information of a frame position with the possibility of transmission of packets, whereby it is possible to shift to a peripheral cell detection mode without lowering the transmission efficiency and without complicating the processing.

    摘要翻译： 一种包括移动站MS和基站BS1和BS2的无线通信系统，其中，移动站MS和基站BS1和BS2之一或两者设置有用于通知具有帧位置信息的单元， 基于检测到接收质量恶化的分组，并且其中移动台MS设置有用于确定帧位置的单元，而不具有传输分组的可能性并且基于信息的信息移动到该帧位置处的周边小区检测模式 具有发送分组的可能性的帧位置，由此可以在不降低传输效率的情况下移动到周边小区检测模式，并且不会使处理复杂化。

    Outer-loop power control device and method thereof
    36.
    发明授权
    Outer-loop power control device and method thereof 有权
    外环功率控制装置及其方法

    公开(公告)号：US07522561B2

    公开(公告)日：2009-04-21

    申请号：US10616067

    申请日：2003-07-09

    申请人： Tetsuya Yano ,  Kazuhisa Obuchi

    发明人： Tetsuya Yano ,  Kazuhisa Obuchi

    IPC分类号： H04B7/00 ,  H04W4/00

    CPC分类号： H04W52/12 ,  H04W52/143 ,  H04W52/20 ,  H04W52/241 ,  H04W52/362

    摘要： The reference SIR control command determination unit of a reference SIR control unit provides a DSP with a target BLER and obtains an observation time period Sinc and Sdec from a conversion table in which an observation time period T, a reference SIR increase step Sinc, and a reference SIR decrease step Sdec are set in advance in such a way to satisfy a theoretical equation, including the BLER. A register stores these pieces of data. A reference SIR increase/decrease control unit compares a result obtained by increasing/decreasing a reference SIR using Sinc or Sdec with an SIR measurement value, based on a data error state detected by a CRC detection unit and generates a transmission power control command.

    摘要翻译： 参考SIR控制单元的参考SIR控制命令确定单元向DSP提供目标BLER，并且从观测时间段T，参考SIR增加步骤Sinc和 参考SIR降低步骤Sdec被预先设置为满足包括BLER的理论方程式的方式。 一个寄存器存储这些数据。 参考SIR增减控制单元根据由CRC检测单元检测到的数据错误状态，将使用Sinc或Sdec的参考SIR与SIR测量值进行比较而得到的结果进行比较，并生成发送功率控制命令。

    Packet data retransmission control method and system
    37.
    发明授权
    Packet data retransmission control method and system 失效
    分组数据重传控制方法和系统

    公开(公告)号：US07392451B2

    公开(公告)日：2008-06-24

    申请号：US10856212

    申请日：2004-05-28

    申请人： Kazuhisa Obuchi ,  Tetsuya Yano

    发明人： Kazuhisa Obuchi ,  Tetsuya Yano

    IPC分类号： G08C25/02 ,  H04L1/18 ,  H04L1/14

    CPC分类号： H04L1/1867 ,  H04L1/1803 ,  H04L2001/0092 ,  H04L2001/125 ,  H04W88/08 ,  H04W88/12

    摘要： A packet data retransmission control method, where a base-station upper-level control system transmits downstream packet data, which is terminated at a terminal station, to a plurality of base stations. A specific base station that is one of the base stations transfers the downstream packet data to the terminal station. The plurality of base stations receive an upstream control signal with which reception of the downstream packet data is acknowledged and which is returned from the terminal station. Base stations other than the specific base station notify the specific base station via the base-station upper-level control system that they have received the upstream control signal. The specific base station determines packet data to be retransmitted according to the receiving situation thereof for the upstream control signal returned from the terminal station and the receiving situations of the other base stations for the upstream control signal.

    摘要翻译： 一种分组数据重传控制方法，其中基站上层控制系统将终端的终端的下行分组数据发送到多个基站。 作为基站之一的特定基站将下行分组数据传送到终端站。 多个基站接收上游控制信号，通过该上行控制信号确认下游分组数据的接收，并从终端站返回。 除特定基站以外的基站经由基站上层控制系统通知特定的基站已经接收到上游控制信号。 特定基站根据其从终端返回的上行控制信号的接收状况和其他基站对于上游控制信号的接收状况来确定要重传的分组数据。

    Wireless base station and mobile station
    38.
    发明授权
    Wireless base station and mobile station 有权
    无线基站和移动台

    公开(公告)号：US07272396B2

    公开(公告)日：2007-09-18

    申请号：US11176255

    申请日：2005-07-08

    申请人： Kazuhisa Obuchi ,  Tetsuya Yano ,  Shunji Miyazaki

    发明人： Kazuhisa Obuchi ,  Tetsuya Yano ,  Shunji Miyazaki

    IPC分类号： H04A7/20 ,  H04A7/00

    CPC分类号： H04L1/1812 ,  H04L1/0066 ,  H04L1/0072 ,  H04L1/0075 ,  H04L1/08 ,  H04W36/02 ,  H04W36/08 ,  H04W72/085 ,  H04W72/1231

    摘要： The occurrence of problematic data portions during handover is prevented by a wireless base station in a wireless communication system wherein mobile stations to be transmitted to are selected successively from a plurality of transmission destination candidate mobile stations and data transport to the selected mobile station is performed via a shared channel, the wireless base station comprising a detection unit which detects mobile stations undergoing handover; and a control unit which provides control such that a mobile station detected by the detection unit becomes less likely to be selected as described above as compared to other mobile stations.

    摘要翻译： 在无线通信系统中，由多个发送目的地候选移动站连续选择要发送的移动台，向所选择的移动台进行数据传送，由无线基站防止切换期间出现问题的数据部分，经由 共享信道，所述无线基站包括检测单元，所述检测单元检测正在进行切换的移动站; 以及控制单元，其提供控制，使得与其他移动站相比，由检测单元检测到的移动站变得不太可能如上所述被选择。

    Turbo decoder
    39.
    发明授权
    Turbo decoder 有权
    Turbo解码器

    公开(公告)号：US07096402B2

    公开(公告)日：2006-08-22

    申请号：US09901295

    申请日：2001-07-09

    申请人： Tetsuya Yano ,  Kazuhisa Obuchi ,  Kazuo Kawabata

    发明人： Tetsuya Yano ,  Kazuhisa Obuchi ,  Kazuo Kawabata

    IPC分类号： H03M13/29 ,  H03M13/45

    CPC分类号： H04L1/0051 ,  H03M13/29 ,  H03M13/2957 ,  H03M13/2975 ,  H03M13/2978 ,  H03M13/2984 ,  H04L1/0055

    摘要： Detection of errors in the results of turbo decoding is performed while decoding is being repeated. If absence of errors is detected, the results of decoding are output, even though repetition of the decoding operation is in progress, and further decoding is discontinued. Further, the number of times errors are detected in decoded results when decoding has been performed a set number of times is monitored and the decoding operation is executed again if the number of times errors are detected is equal to or less than a set value. Further, one of first and second decoded results output from first and second elementary decoders that construct a turbo decoder is selected as appropriate and is then output.

    摘要翻译： 在重复解码时执行turbo解码结果中的错误的检测。 如果检测到不存在错误，即使解码操作的重复正在进行，输出解码结果，并且中断进一步的解码。 此外，如果检测到错误的次数等于或小于设定值，则在解码已经执行设定次数时，在解码结果中检测到错误的次数被监视，并且如果检测到错误的次数再次执行解码操作。 此外，适当地选择构成turbo解码器的第一和第二基本解码器输出的第一和第二解码结果之一，然后输出。

    Wireless communications system, base station, and mobile station
    40.
    发明申请
    Wireless communications system, base station, and mobile station 有权
    无线通信系统，基站和移动台

    公开(公告)号：US20060126577A1

    公开(公告)日：2006-06-15

    申请号：US11130541

    申请日：2005-05-17

    申请人： Tetsuya Yano ,  Kazuhisa Obuchi ,  Shunji Miyazaki

    发明人： Tetsuya Yano ,  Kazuhisa Obuchi ,  Shunji Miyazaki

    IPC分类号： H04L1/00

    CPC分类号： H04W36/38 ,  H04B7/2643 ,  H04B7/2656 ,  H04W4/02 ,  H04W36/0088 ,  H04W56/00 ,  H04W72/04 ,  H04W72/0446

    摘要： A wireless communications system including a mobile station MS and base stations BS1 and BS2, wherein one or both of the mobile station MS and the base stations BS1 and BS2 is provided with a unit for notifying information of a frame position with the possibility of transmission of packets based on detection of deterioration of a reception quality and wherein the mobile station MS is provided with a unit for determining a frame position without the possibility of transmission of packets and shifting to a peripheral cell detection mode at this frame position based on information of a frame position with the possibility of transmission of packets, whereby it is possible to shift to a peripheral cell detection mode without lowering the transmission efficiency and without complicating the processing.

    摘要翻译： 一种包括移动站MS和基站BS 1和BS 2的无线通信系统，其中移动站MS和基站BS 1和BS 2中的一个或两个设置有用于通知具有帧位置的信息的单元 基于检测到接收质量恶化的可能性来传送分组，并且其中移动台MS设置有用于确定帧位置的单元，而没有发送分组的可能性并且在该帧位置处转移到周边小区检测模式 关于具有发送分组的可能性的帧位置的信息，由此可以在不降低传输效率的情况下转移到周边小区检测模式，并且不会使处理复杂化。