公开(公告)号：US20120201193A1

公开(公告)日：2012-08-09

申请号：US13501960

申请日：2010-09-28

申请人： Takatoshi Sugiyama ,  Daisuke Umehara ,  Masaaki Tanaka

发明人： Takatoshi Sugiyama ,  Daisuke Umehara ,  Masaaki Tanaka

IPC分类号： H04B7/14 ,  H04W72/04 ,  H04W56/00

CPC分类号： H04W72/04 ,  H04B7/155 ,  H04B7/15521 ,  H04B7/2606 ,  H04B7/2656 ,  H04W56/00 ,  H04W72/082 ,  H04W84/047 ,  H04W88/04

摘要： Provided is a wireless relay system that improves system throughput between terminal stations and flexibly makes system throughput variable with respect to short-term traffic fluctuations. In the wireless relay system, a plurality of relay stations relay communication between two terminal stations that perform random access. The terminal stations and the relay stations include a slot synchronization unit, a time synchronization unit, and a transmission unit. The slot synchronization unit synchronizes slot timing of a time slot indicating a unit time. The time synchronization unit performs time synchronization for synchronization of the slot timing. The transmission unit transmits a transmission packet to a wireless line in synchronization with the slot timing. A transmission right is allocated for at least one time slot to each of a plurality of groups which are configured so that a group of a terminal station or a relay station and a group of an adjacent terminal station or an adjacent relay station are different from each other. The transmission unit transmits the transmission packet to the wireless line only in a time slot in which the transmission right is allocated to the group to which the terminal station or the relay station belongs.

摘要翻译： 提供了一种无线中继系统，其提高终端之间的系统吞吐量，并且灵活地使系统吞吐量相对于短期流量波动而变化。 在无线中继系统中，多个中继站对执行随机接入的两个终端站之间进行中继通信。 终端站和中继站包括时隙同步单元，时间同步单元和传输单元。 时隙同步单元同步指示单位时间的时隙的时隙定时。 时间同步单元执行用于时隙定时同步的时间同步。 发送单元与时隙定时同步地向无线线路发送发送分组。 为至少一个时隙分配至少一个时隙的传输权，其被配置为使得一组终端站或中继站以及相邻终端站或相邻中继站的组不同于每个 其他。 发送单元仅在将发送权分配给终端站或中继站所属的组的时隙中向无线线路发送发送分组。

公开(公告)号：US08982770B2

公开(公告)日：2015-03-17

申请号：US13501960

申请日：2010-09-28

申请人： Takatoshi Sugiyama ,  Daisuke Umehara ,  Masaaki Tanaka

发明人： Takatoshi Sugiyama ,  Daisuke Umehara ,  Masaaki Tanaka

IPC分类号： H04B7/14 ,  H04W72/04 ,  H04B7/155 ,  H04B7/26 ,  H04W56/00 ,  H04W84/04

CPC分类号： H04W72/04 ,  H04B7/155 ,  H04B7/15521 ,  H04B7/2606 ,  H04B7/2656 ,  H04W56/00 ,  H04W72/082 ,  H04W84/047 ,  H04W88/04

摘要： Provided is a wireless relay system that improves system throughput between terminal stations and flexibly makes system throughput variable with respect to short-term traffic fluctuations. In the wireless relay system, a plurality of relay stations relay communication between two terminal stations that perform random access. The terminal stations and the relay stations include a slot synchronization unit, a time synchronization unit, and a transmission unit. The slot synchronization unit synchronizes slot timing of a time slot indicating a unit time. The time synchronization unit performs time synchronization for synchronization of the slot timing. The transmission unit transmits a transmission packet to a wireless line in synchronization with the slot timing. A transmission right is allocated for at least one time slot to each of a plurality of groups which are configured so that a group of a terminal station or a relay station and a group of an adjacent terminal station or an adjacent relay station are different from each other. The transmission unit transmits the transmission packet to the wireless line only in a time slot in which the transmission right is allocated to the group to which the terminal station or the relay station belongs.

摘要翻译： 提供了一种无线中继系统，其提高终端之间的系统吞吐量，并且灵活地使系统吞吐量相对于短期流量波动而变化。 在无线中继系统中，多个中继站对执行随机接入的两个终端站之间进行中继通信。 终端站和中继站包括时隙同步单元，时间同步单元和传输单元。 时隙同步单元同步指示单位时间的时隙的时隙定时。 时间同步单元执行用于时隙定时同步的时间同步。 发送单元与时隙定时同步地向无线线路发送发送分组。 为至少一个时隙分配至少一个时隙的传输权，其被配置为使得一组终端站或中继站以及相邻终端站或相邻中继站的组不同于每个 其他。 发送单元仅在将发送权分配给终端站或中继站所属的组的时隙中向无线线路发送发送分组。

公开(公告)号：US20130195208A1

公开(公告)日：2013-08-01

申请号：US13877916

申请日：2011-10-17

申请人： Daisuke Umehara ,  Yasuhiro Yabuuchi ,  Masahiro Morikura ,  Toshiya Hisada ,  Shinichi Ishiko ,  Satoshi Horihata ,  Tetsuo Morita

发明人： Daisuke Umehara ,  Yasuhiro Yabuuchi ,  Masahiro Morikura ,  Toshiya Hisada ,  Shinichi Ishiko ,  Satoshi Horihata ,  Tetsuo Morita

IPC分类号： H04B3/04

CPC分类号： H04B3/04 ,  H04B3/542 ,  H04B2203/5412 ,  H04B2203/5445 ,  H04B2203/5458 ,  H04B2203/547 ,  H04L27/2032

摘要： A power line communication system is provided in which the influence of the impulsive noise unexpectedly generated on a power line which is a communication medium can be reduced according to the characteristics of the impulsive noise by an existing method and power line communication can be realized without a hindrance. A transmitter is constituted by: a modulator for conveying a LIN data signal by a power line; a filter that allows a signal of a predetermined band to pass therethrough; and a sinusoidal wave outputter (sinusoidal wave in the figure). In contrast, the receiver is constituted by the sinusoidal wave outputter, the filter and a demodulator that performs demodulation. To the power line, a limiter that limits the amplitude of the propagating signal to a predetermined amplitude (reception signal amplitude) is connected.

摘要翻译： 提供了一种电力线通信系统，其中可以通过现有方法和电力线通信根据脉冲噪声的特性来减少意外产生的作为通信介质的电力线的脉冲噪声的影响，而不需要 障碍 发射机由以下部分构成：用于通过电力线传送LIN数据信号的调制器; 允许预定频带的信号通过的滤波器; 和正弦波输出器（图中的正弦波）。 相反，接收机由正弦波输出器，滤波器和执行解调的解调器构成。 连接电源线，将传播信号的振幅限制在规定的振幅（接收信号振幅）的限幅器。

公开(公告)号：US09048888B2

公开(公告)日：2015-06-02

申请号：US13877916

申请日：2011-10-17

申请人： Daisuke Umehara ,  Yasuhiro Yabuuchi ,  Masahiro Morikura ,  Toshiya Hisada ,  Shinichi Ishiko ,  Satoshi Horihata ,  Tetsuo Morita

发明人： Daisuke Umehara ,  Yasuhiro Yabuuchi ,  Masahiro Morikura ,  Toshiya Hisada ,  Shinichi Ishiko ,  Satoshi Horihata ,  Tetsuo Morita

IPC分类号： H04B3/00 ,  H04B3/04 ,  H04B3/54 ,  H04L27/20

CPC分类号： H04B3/04 ,  H04B3/542 ,  H04B2203/5412 ,  H04B2203/5445 ,  H04B2203/5458 ,  H04B2203/547 ,  H04L27/2032

摘要： A power line communication system is provided in which the influence of the impulsive noise unexpectedly generated on a power line which is a communication medium can be reduced according to the characteristics of the impulsive noise by an existing method and power line communication can be realized without a hindrance. A transmitter is constituted by: a modulator for conveying a LIN data signal by a power line; a filter that allows a signal of a predetermined band to pass therethrough; and a sinusoidal wave outputter (sinusoidal wave in the figure). In contrast, the receiver is constituted by the sinusoidal wave outputter, the filter and a demodulator that performs demodulation. To the power line, a limiter that limits the amplitude of the propagating signal to a predetermined amplitude (reception signal amplitude) is connected.

摘要翻译： 提供了一种电力线通信系统，其中可以通过现有方法和电力线通信根据脉冲噪声的特性来减少意外产生的作为通信介质的电力线的脉冲噪声的影响，而不需要 障碍 发射机由以下部分构成：用于通过电力线传送LIN数据信号的调制器; 允许预定频带的信号通过的滤波器; 和正弦波输出器（图中的正弦波）。 相反，接收机由正弦波输出器，滤波器和执行解调的解调器构成。 连接电源线，将传播信号的振幅限制在预定幅度（接收信号振幅）的限幅器。

公开(公告)号：US08548036B2

公开(公告)日：2013-10-01

申请号：US12801687

申请日：2010-06-21

申请人： Daisuke Umehara ,  Masahiro Morikura ,  Toshiya Hisada ,  Shinichi Ishiko ,  Satoshi Horihata

发明人： Daisuke Umehara ,  Masahiro Morikura ,  Toshiya Hisada ,  Shinichi Ishiko ,  Satoshi Horihata

IPC分类号： H04B3/46 ,  H04B17/00 ,  H04Q1/20

CPC分类号： H04B17/0055 ,  G06N7/02 ,  H04B3/54 ,  H04B17/345

摘要： For voltage values (observed noise sequence) in an electronic power line (communication medium) which are obtained at a predetermined interval, initial values of noise characteristics based on a statistic of the observed noise sequence itself are decided by a moment method (S301 to S307), the noise characteristics (state transition probabilities and state noise power) for maximization of the likelihood of the observed noise sequence are obtained from the initial values by MAP (Maximum A Posteriori) estimation using a Baum-Welch algorithm (S309 to S312), a state sequence is estimated from the obtained noise characteristics, and an impulsive noise at each time point is detected.

摘要翻译： 对于以预定间隔获得的电子电力线（通信介质）中的电压值（观察到的噪声序列），基于观察到的噪声序列本身的统计量的噪声特性的初始值由力矩法（S301〜S307 ），通过使用Baum-Welch算法的MAP（最大后验）估计，从初始值获得用于使观测到的噪声序列的似然性最大化的噪声特性（状态转移概率和状态噪声功率）（S309〜S312） 从获得的噪声特性估计状态序列，并且检测每个时间点的脉冲噪声。

公开(公告)号：US20100329320A1

公开(公告)日：2010-12-30

申请号：US12801687

申请日：2010-06-21

申请人： Daisuke Umehara ,  Masahiro Morikura ,  Toshiya Hisada ,  Shinichi Ishiko ,  Satoshi Horihata

发明人： Daisuke Umehara ,  Masahiro Morikura ,  Toshiya Hisada ,  Shinichi Ishiko ,  Satoshi Horihata

IPC分类号： H04B17/00 ,  G06G7/62 ,  G06N5/02

CPC分类号： H04B17/0055 ,  G06N7/02 ,  H04B3/54 ,  H04B17/345

摘要： For voltage values (observed noise sequence) in an electronic power line (communication medium) which are obtained at a predetermined interval, initial values of noise characteristics based on a statistic of the observed noise sequence itself are decided by a moment method (S301 to S307), the noise characteristics (state transition probabilities and state noise power) for maximization of the likelihood of the observed noise sequence are obtained from the initial values by MAP (Maximum A Posteriori) estimation using a Baum-Welch algorithm (S309 to S312), a state sequence is estimated from the obtained noise characteristics, and an impulsive noise at each time point is detected.

摘要翻译： 对于以预定间隔获得的电子电力线（通信介质）中的电压值（观察到的噪声序列），基于观察到的噪声序列本身的统计量的噪声特性的初始值由力矩法（S301〜S307 ），通过使用Baum-Welch算法的MAP（最大后验）估计，从初始值获得用于使观测到的噪声序列的似然性最大化的噪声特性（状态转移概率和状态噪声功率）（S309〜S312） 从获得的噪声特性估计状态序列，并且检测每个时间点的脉冲噪声。