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：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：US09444542B2

公开(公告)日：2016-09-13

申请号：US13179921

申请日：2011-07-11

申请人： Takayoshi Ode ,  Kazuhisa Obuchi

发明人： Takayoshi Ode ,  Kazuhisa Obuchi

IPC分类号： H04W4/00 ,  H04B7/155 ,  H04W72/00 ,  H04B7/04 ,  H04B7/26 ,  H04L12/18 ,  H04L27/34 ,  H04W88/06 ,  H04W84/12

CPC分类号： H04B7/15507 ,  H04B7/0413 ,  H04B7/15514 ,  H04B7/15542 ,  H04B7/15557 ,  H04B7/2606 ,  H04L12/1863 ,  H04L12/189 ,  H04L27/34 ,  H04W72/005 ,  H04W84/12 ,  H04W88/06

摘要： In a radio communication system a first radio station performs communication by the use of a first radio signal. A second radio station receives a second radio signal which is indistinguishable from the first radio signal. A third radio station is in a radio communication area of the first radio station and a radio communication area of the second radio station. A communication format conversion unit generates a third radio signal by converting a communication format of the second radio signal to a communication format which is distinguishable from the first radio signal, and communicates with the third radio station by the use of the third radio signal.

公开(公告)号：US09118479B2

公开(公告)日：2015-08-25

申请号：US13618413

申请日：2012-09-14

申请人： Yoshiaki Ohta ,  Yoshiharu Tajima ,  Yoshinori Tanaka ,  Yoshihiro Kawasaki ,  Kazuhisa Obuchi ,  Katsumasa Sugiyama ,  Masatsugu Shimizu

发明人： Yoshiaki Ohta ,  Yoshiharu Tajima ,  Yoshinori Tanaka ,  Yoshihiro Kawasaki ,  Kazuhisa Obuchi ,  Katsumasa Sugiyama ,  Masatsugu Shimizu

IPC分类号： H04W72/00 ,  H04L1/18 ,  H04W72/12 ,  H04L1/00 ,  H04W84/04 ,  H04W88/08

CPC分类号： H04L1/1887 ,  H04L2001/0097 ,  H04W72/12 ,  H04W84/047 ,  H04W88/08

摘要： A mobile communication system comprises a base station and a relay station to relay data transmitted/received between the base station and a mobile station. The base station includes a first scheduler to perform scheduling of initial transmission of the data transmitted/received between the base station and the mobile station via the relay station, and a first manager to manage predetermined wireless resources which are periodically used, as wireless resources used for the initial transmission of the data. The relay station includes a second scheduler configured to perform scheduling of transmission of a message for confirming necessity of retransmission of the data and retransmission of the data and a second manager configured to manage wireless resources used for the transmission of the message and the retransmission of the data.

摘要翻译： 移动通信系统包括基站和中继站，用于中继在基站与移动台之间发送/接收的数据。 基站包括：第一调度器，经由中继站执行在基站与移动站之间发送/接收的数据的初始发送的调度;以及第一管理器，用于管理定期使用的预定无线资源，作为使用的无线资源 用于初始传输数据。 所述中继站包括：第二调度器，被配置为执行用于确认所述数据的重传和所述数据的重发的必要性的消息的传输调度;以及第二管理器，被配置为管理用于所述消息的发送的所述无线资源以及所述第 数据。

公开(公告)号：US08806286B2

公开(公告)日：2014-08-12

申请号：US12424642

申请日：2009-04-16

申请人： Yoshiaki Ohta ,  Kazuhisa Obuchi ,  Kazuo Kawabata ,  Yoshihiro Kawasaki ,  Yoshiharu Tajima ,  Hideto Furukawa

发明人： Yoshiaki Ohta ,  Kazuhisa Obuchi ,  Kazuo Kawabata ,  Yoshihiro Kawasaki ,  Yoshiharu Tajima ,  Hideto Furukawa

IPC分类号： H03M13/00 ,  H04L1/16 ,  H04B7/06 ,  H04L1/06 ,  H04L1/18 ,  H04J99/00

CPC分类号： H04L1/1812 ,  H04B7/0689 ,  H04J15/00 ,  H04L1/06 ,  H04L1/1671 ,  H04L1/1816 ,  H04L1/1822 ,  H04L1/1845

摘要： In a wireless communication system, a sender apparatus sends a data block, for each of a plurality of stream data, with data block identification information, which does not conflict between stream data, annexed, and a reception apparatus performs a re-sending synthesis process for a data block received already and a re-sending data block to which the same data block identification information is individually annexed based on the data block identification information annexed to the received data block. Consequently, also in a case wherein the number of transmission streams between the sender apparatus and the reception apparatus is varied (reduced), the matching property of the data block which is a re-sending synthesis target can be maintained and communication can be continued normally.

摘要翻译： 在无线通信系统中，发送装置向多个流数据中的每一个发送数据块，其中数据块识别信息不伴随流数据，附件和接收装置之间的冲突，执行重发合成处理 对于已经接收到的数据块，以及根据接收到的数据块所附加的数据块识别信息，分别附加相同数据块识别信息的再发送数据块。 因此，在发送装置与接收装置之间的发送流的数量变化（减少）的情况下，也可以维持作为再发送合成对象的数据块的匹配特性，并且可以正常地进行通信 。

公开(公告)号：US08780792B2

公开(公告)日：2014-07-15

申请号：US11156894

申请日：2005-06-21

申请人： Kazuhisa Obuchi ,  Tetsuya Yano ,  Shunji Miyazaki

发明人： Kazuhisa Obuchi ,  Tetsuya Yano ,  Shunji Miyazaki

IPC分类号： H04W4/00

CPC分类号： H04L1/0075 ,  H04L1/0003 ,  H04L1/0026 ,  H04L1/0066 ,  H04L1/1671 ,  H04L1/1812 ,  H04W36/0055 ,  H04W36/02 ,  H04W88/02 ,  H04W92/10

摘要： An mobile station implements data transport which allows for handover. The mobile station transmits a second datum in response to a first datum received from a wireless base station, the mobile station being characterized in that it comprises: a detection unit which detects that handover is to be performed; and a control unit which provides control such that, in cases where the detection has been made, the changeover timing of the transmission destination for the second datum is made later than the changeover timing of the reception channel for the first datum.

摘要翻译： 移动台实现允许切换的数据传输。 移动台响应于从无线基站接收到的第一数据发送第二数据，其特征在于它包括：检测单元，检测是否执行切换; 以及控制单元，其提供控制，使得在进行检测的情况下，将第二数据的发送目的地的切换定时晚于第一数据的接收信道的切换定时。

公开(公告)号：US08761083B2

公开(公告)日：2014-06-24

申请号：US11176512

申请日：2005-07-08

申请人： Kazuhisa Obuchi ,  Hideto Furukawa ,  Kazuo Kawabata ,  Yoshiharu Tajima

发明人： Kazuhisa Obuchi ,  Hideto Furukawa ,  Kazuo Kawabata ,  Yoshiharu Tajima

IPC分类号： H04W4/00

CPC分类号： H04L5/0091 ,  H04W28/18 ,  H04W52/0229 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/24 ,  Y02D70/25

摘要： To alleviate processing load of a communication apparatus (mobile station) for data transmission using the shared channels. A radio communication apparatus for receiving data via the shared channels, comprises a receiving unit for intermittent reception to determine whether the data received via the shared channels is transmitted to its own station or not in the first operational mode and a transmitting unit for intermittent transmission of information which influences the transmission format of the data a predetermined time before the intermittent reception timing of the receiving unit in the first mode.

摘要翻译： 为了减轻用于使用共享信道进行数据传输的通信装置（移动台）的处理负荷。 一种用于经由共享信道接收数据的无线电通信装置，包括用于间歇接收的接收单元，用于确定在第一操作模式中是否将经由共享信道接收的数据发送到其自己的站;以及发送单元，用于间歇地发送 在第一模式中接收单元的间歇接收定时之前的预定时间影响数据的传输格式的信息。

公开(公告)号：US08743818B2

公开(公告)日：2014-06-03

申请号：US13523216

申请日：2012-06-14

申请人： Yoshiaki Ohta ,  Yoshiharu Tajima ,  Kazuhisa Obuchi ,  Yoshihiro Kawasaki

发明人： Yoshiaki Ohta ,  Yoshiharu Tajima ,  Kazuhisa Obuchi ,  Yoshihiro Kawasaki

IPC分类号： H04W74/08 ,  H04W72/04 ,  H04J3/16 ,  H04L12/413

CPC分类号： H04W74/08 ,  H04W74/008 ,  H04W74/0833

摘要： A method for random access in a wireless communication system communicating between a base station and a wireless terminal, the method consists of: at the wireless terminal, selecting first information used for first random access or second information used for second random access and performing a data communication with the base station during or after the completion of random access using selected information.

摘要翻译： 一种用于在基站和无线终端之间通信的无线通信系统中的随机接入的方法，所述方法包括：在所述无线终端处，选择用于第一随机接入的第一信息或用于第二随机接入的第二信息，并执行数据 使用所选择的信息在随机访问完成期间或之后与基站进行通信。

公开(公告)号：US08700979B2

公开(公告)日：2014-04-15

申请号：US13529390

申请日：2012-06-21

申请人： Hiroaki Arai ,  Shunji Miyazaki ,  Kazuhisa Obuchi

发明人： Hiroaki Arai ,  Shunji Miyazaki ,  Kazuhisa Obuchi

IPC分类号： H03M13/03

CPC分类号： H04L1/0057 ,  H03M13/2981 ,  H03M13/6502 ,  H03M13/6505 ,  H03M13/658 ,  H03M13/6583 ,  H03M13/6591 ,  H04L1/005 ,  H04L1/0071

摘要： An error correcting code decoding device includes a first decoding circuit, a word-length reduction circuit configured to reduce bit lengths of a first external values corresponding to a plurality of bits obtained after decoding process performed by the first decoding circuit a first predetermined number of times and to reduce bit lengths of words included in word string, and a second decoding circuit configured to decode the bit string by executing a decoding process a second predetermined number of times for calculating second external values and posterior values of the bits included in the bit string in accordance with the word string including the words having the reduced bit lengths using the first external values having the reduced bit lengths as second prior probabilities that corresponding bits among the plurality of bits are the predetermined value.

摘要翻译： 纠错码解码装置包括：第一解码电路，字长缩小电路，被配置为减少与由第一解码电路执行的解码处理之后获得的多个比特相对应的第一外部值的比特长度，第一预定次数 并且减少字串中包含的字的位长度;以及第二解码电路，被配置为通过执行解码处理来对位串进行解码，第二预定次数用于计算第二外部值和包含在位串中的位的后验值 根据包含具有缩减比特长度的字的字串，使用具有缩小比特长度的第一外部值作为第二先验概率，其中多个比特之间的相应比特是预定值。

公开(公告)号：US08627164B2

公开(公告)日：2014-01-07

申请号：US12662162

申请日：2010-04-01

申请人： Chiaki Shinohara ,  Kazuhisa Obuchi ,  Hirotoshi Shimizu ,  Akihide Otonari ,  Yoshinori Soejima ,  Miki Yamasaki ,  Shinya Okamoto

发明人： Chiaki Shinohara ,  Kazuhisa Obuchi ,  Hirotoshi Shimizu ,  Akihide Otonari ,  Yoshinori Soejima ,  Miki Yamasaki ,  Shinya Okamoto

IPC分类号： G08C25/02 ,  H04L1/18 ,  H03M13/00

摘要： A wireless communication apparatus that uses a communication protocol to transmit and receive data with a data check bit, including a received data determining section that performs a data check for received data by using the data check bit to determine whether the data is error; a received result transmitting section that, when determined to be error, discards the data and transmits a retransmission request to other wireless communication apparatus of the transmitting origin, whereas determined to be not error, transmits a message indicating that the data is normal to the other wireless communication apparatus of the transmitting origin; and a retransmission asking section that determines whether a format of the data is incorrect or normal, and when determined to be normal, passes the data to predetermined processing, whereas when determined to be incorrect, discards the data and asks the received result transmitting section to request retransmission of the data.