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1. 发明授权

US08023599B2 Interfering signal characterizing quantity storing method and device, interfering signal characterizing quantity acquiring method and device, and interfering signal suppressing method and device 有权
标题翻译：干扰信号特征量存储方法和装置，干扰信号特征量获取方法和装置，以及干扰信号抑制方法和装置
公开(公告)号：US08023599B2
公开(公告)日：2011-09-20
申请号：US12064421
申请日：2006-10-23
申请人： Koichiro Tanaka , Naganori Shirakata , Yoshio Urabe , Tsutomu Mukai , Kenji Miyanaga , Koji Imamura , Shuya Hosokawa
发明人： Koichiro Tanaka , Naganori Shirakata , Yoshio Urabe , Tsutomu Mukai , Kenji Miyanaga , Koji Imamura , Shuya Hosokawa
IPC分类号： H04B7/10
CPC分类号： H04B1/1027 , H04B1/7107 , H04B17/336 , H04L2025/03414 , H04L2025/03426
摘要： Interfering signals coming at random timings from different radio stations are identified. In order to attain this, a method for storing the characterizing quantity of an interfering signal included in a received signal includes calculating the characterizing quantity of the received signal, determining a probability that a desired signal is included in the received signal, determining that the received signal is an interfering signal when determining that there is no probability that the desired signal is included in the received signal, and storing the characterizing quantity of the received signal as an interfering signal characterizing quantity when it is determined at the received signal determination step that there is no probability that the desired signal is included in the received signal.
摘要翻译：确定来自不同电台的随机定时信号的干扰信号。为了实现这一点，包括在接收信号中的用于存储干扰信号的特征量的方法包括：计算接收信号的特征量，确定所需信号包含在接收信号中的概率，确定接收到的信号信号是确定在接收信号中不存在所需信号的概率时的干扰信号，并且当在接收信号确定步骤确定接收信号确定步骤时将接收信号的特征量存储为干扰信号表征量在所接收的信号中不包含所需信号的概率。

2. 发明申请

US20090135972A1 INTERFERING SIGNAL CHARACTERIZING QUANTITY STORING METHOD AND DEVICE, INTERFERING SIGNAL CHARACTERIZING QUANTITY ACQUIRING METHOD AND DEVICE, AND INTERFERING SIGNAL SUPPRESSING METHOD AND DEVICE 有权
标题翻译：干扰信号特征量存储方法和装置，干扰信号特征量获取方法和装置，以及干扰信号抑制方法和装置
公开(公告)号：US20090135972A1
公开(公告)日：2009-05-28
申请号：US12064421
申请日：2006-10-23
申请人： Koichiro Tanaka , Naganori Shirakata , Yoshio Urabe , Tsutomu Mukai , Kenji Miyanaga , Koji Imamura , Shuya Hosokawa
发明人： Koichiro Tanaka , Naganori Shirakata , Yoshio Urabe , Tsutomu Mukai , Kenji Miyanaga , Koji Imamura , Shuya Hosokawa
IPC分类号： H04B1/04
CPC分类号： H04B1/1027 , H04B1/7107 , H04B17/336 , H04L2025/03414 , H04L2025/03426
摘要： An object is to identify interfering signals coming at random timings from different radio stations. In order to attain this object, a method for storing the characterizing quantity of an interfering signal included in a received signal comprises a characterizing quantity calculation step of calculating the characterizing quantity of the received signal; a received signal determination step of determining a probability that a desired signal is included in the received signal, and determining that the received signal is an interfering signal when determining that there is no probability that the desired signal is included in the received signal; and an interfering signal characterizing quantity storage step of storing the characterizing quantity of the received signal as an interfering signal characterizing quantity when it is determined at the received signal determination step that there is no probability that the desired signal is included in the received signal.
摘要翻译：目的是识别来自不同电台的随机定时的干扰信号。为了达到这个目的，一种用于存储包含在接收信号中的干扰信号的特征量的方法包括：计算接收信号的特征量的特征量计算步骤; 接收信号确定步骤，确定在所接收的信号中包含期望信号的概率，并且当确定不存在在所接收的信号中包含期望信号的概率时，确定所接收的信号是干扰信号; 以及干扰信号特征量存储步骤，当在接收信号确定步骤确定在接收信号中不包括所需信号的可能性时，将接收信号的特征量存储为干扰信号特征量。

3. 发明申请

US20090034647A1 TRANSMITTING DEVICE, WIRELESS COMMUNICATION SYSTEM AND TRANSMITTING METHOD 有权
标题翻译：发送设备，无线通信系统和发送方法
公开(公告)号：US20090034647A1
公开(公告)日：2009-02-05
申请号：US12281388
申请日：2007-03-01
申请人： Naganori Shirakata , Shuya Hosokawa , Koji Imamura , Koichiro Tanaka , Kenji Miyanaga , Yoshio Urabe , Tsutomu Mukai
发明人： Naganori Shirakata , Shuya Hosokawa , Koji Imamura , Koichiro Tanaka , Kenji Miyanaga , Yoshio Urabe , Tsutomu Mukai
IPC分类号： H04B15/00
CPC分类号： H04L69/28 , H04L1/0007 , H04L1/16 , H04W16/14 , H04W72/12
摘要： At a time T131, a wireless communication apparatus 11A determines to transmit a data packet, and then performs interference signal detection for a period TA. At a time T132 preceding a time T133 at which the period TA has elapsed since the time T131, the wireless communication apparatus 11A detects a data packet d21 (an interference signal). At a time T134 at which a period TB has elapsed since the time T132 at which the interference signal has been detected, the wireless communication apparatus 11A starts transmitting a data packet d11 to a wireless communication apparatus 12A. At a time T136, the wireless communication apparatus 11A completes the transmission of the data packet d11.
摘要翻译：在时间T131，无线通信设备11A确定发送数据分组，然后执行周期TA的干扰信号检测。无线通信装置11A在从时刻T131开始经过了周期TA的时间T133之前的时刻T132，检测到数据分组d21（干扰信号）。在从检测到干扰信号的时间T132开始经过了周期TB的时间T134之后，无线通信装置11A开始向无线通信装置12A发送数据包d11。在时间T136，无线通信装置11A完成数据分组d11的发送。

4. 发明授权

US08064370B2 Transmitting device, wireless communication system and transmitting method 有权
标题翻译：传输设备，无线通信系统和传输方式
公开(公告)号：US08064370B2
公开(公告)日：2011-11-22
申请号：US12281388
申请日：2007-03-01
申请人： Naganori Shirakata , Shuya Hosokawa , Koji Imamura , Koichiro Tanaka , Kenji Miyanaga , Yoshio Urabe , Tsutomu Mukai
发明人： Naganori Shirakata , Shuya Hosokawa , Koji Imamura , Koichiro Tanaka , Kenji Miyanaga , Yoshio Urabe , Tsutomu Mukai
IPC分类号： H04B7/005
CPC分类号： H04L69/28 , H04L1/0007 , H04L1/16 , H04W16/14 , H04W72/12
摘要： At a time T131, a wireless communication apparatus 11A determines to transmit a data packet, and then performs interference signal detection for a period TA. At a time T132, which precedes a time T133 at which the period TA has elapsed since the time T131, the wireless communication apparatus 11A detects a data packet d21 (an interference signal). At a time T134, at which a period TB has elapsed since the time T132 at which the interference signal has been detected, the wireless communication apparatus 11A starts transmitting a data packet d11 to a wireless communication apparatus 12A. At a time T136, the wireless communication apparatus 11A completes the transmission of the data packet d11.
摘要翻译：在时间T131，无线通信设备11A确定发送数据分组，然后执行周期TA的干扰信号检测。无线通信装置11A在从时间T131开始经过了周期TA的时间T133之前的时刻T132，检测到数据包d21（干扰信号）。在从检测到干扰信号的时间T132开始经过了周期TB的时间T134之后，无线通信装置11A开始向无线通信装置12A发送数据包d11。在时间T136，无线通信装置11A完成数据分组d11的发送。

5. 发明申请

US20070121750A1 Data transmission method and data reception method 有权
标题翻译：数据传输方法和数据接收方法
公开(公告)号：US20070121750A1
公开(公告)日：2007-05-31
申请号：US10573044
申请日：2005-03-09
申请人： Naganori Shirakata , Yasuo Harada , Koichiro Tanaka , Tomohiro Kimura , Shuya Hosokawa , Yoshio Urabe
发明人： Naganori Shirakata , Yasuo Harada , Koichiro Tanaka , Tomohiro Kimura , Shuya Hosokawa , Yoshio Urabe
IPC分类号： H04L1/02
CPC分类号： H04L27/2657 , H04L25/0204 , H04L27/2613 , H04L27/2675
摘要： In a transfer apparatus to which MIMO-OFDM is applied, a data transmission method and a data reception method are provided in which, even when there are frequency errors varying among transfer paths, the precision of estimation of an inverse propagation coefficient function can be improved, thereby making it possible to suppress a degradation in characteristics. Among symbols composed of a plurality of subcarriers orthognal to each other, the transfer apparatus uses, as a synchronization symbol, a symbol in which predetermined amplitudes and phases are assigned to a plurality of subcarriers spaced at predetermined frequency intervals. The synchronization symbol is divided into transmission antennas to generate a plurality of synchronization subsymbols, which are in turn simultaneously transmitted from a plurality of transmission antennas. A reception apparatus estimates a frequency error for each transfer path based on synchronization subsymbols included in signals received by a plurality of reception antennas, and based on the estimated frequency errors, corrects the received signals.
摘要翻译：在应用MIMO-OFDM的传送装置中，提供数据传输方法和数据接收方法，其中即使在传输路径之间存在频率误差变化的情况下，也可以提高反向传播系数函数的估计精度，从而可以抑制特性的劣化。在由彼此正交的多个子载波组成的符号之中，传送装置使用将预定的幅度和相位分配给以预定频率间隔隔开的多个子载波的符号作为同步符号。同步符号被分成发送天线以产生多个同步子符号，这些同步子符号又从多个发送天线同时发送。接收装置基于由多个接收天线接收的信号中包含的同步子符号估计每个传送路径的频率误差，并且基于估计的频率误差来校正接收到的信号。

6. 发明授权

US07702027B2 Data transmission method and data reception method 有权
标题翻译：数据传输方法和数据接收方法
公开(公告)号：US07702027B2
公开(公告)日：2010-04-20
申请号：US10573044
申请日：2005-03-09
申请人： Naganori Shirakata , Yasuo Harada , Koichiro Tanaka , Tomohiro Kimura , Shuya Hosokawa , Yoshio Urabe
发明人： Naganori Shirakata , Yasuo Harada , Koichiro Tanaka , Tomohiro Kimura , Shuya Hosokawa , Yoshio Urabe
IPC分类号： H04B7/02
CPC分类号： H04L27/2657 , H04L25/0204 , H04L27/2613 , H04L27/2675
摘要： In a transfer apparatus to which MIMO-OFDM is applied, a data transmission method and a data reception method are provided in which, even when there are frequency errors varying among transfer paths, the precision of estimation of an inverse propagation coefficient function can be improved, thereby making it possible to suppress a degradation in characteristics. Among symbols composed of a plurality of subcarriers orthognal to each other, the transfer apparatus uses, as a synchronization symbol, a symbol in which predetermined amplitudes and phases are assigned to a plurality of subcarriers spaced at predetermined frequency intervals. The synchronization symbol is divided into transmission antennas to generate a plurality of synchronization subsymbols, which are in turn simultaneously transmitted from a plurality of transmission antennas. A reception apparatus estimates a frequency error for each transfer path based on synchronization subsymbols included in signals received by a plurality of reception antennas, and based on the estimated frequency errors, corrects the received signals.
摘要翻译：在应用MIMO-OFDM的传送装置中，提供数据传输方法和数据接收方法，其中即使在传输路径之间存在频率误差变化的情况下，也可以提高反向传播系数函数的估计精度，从而可以抑制特性的劣化。在由彼此正交的多个子载波组成的符号之中，传送装置使用将预定的幅度和相位分配给以预定频率间隔隔开的多个子载波的符号作为同步符号。同步符号被分成发送天线以产生多个同步子符号，这些同步子符号又从多个发送天线同时发送。接收装置基于由多个接收天线接收的信号中包含的同步子符号估计每个传送路径的频率误差，并且基于估计的频率误差来校正接收到的信号。

7. 发明授权

US08040837B2 Wireless communication apparatus and wireless communication method 有权
标题翻译：无线通信装置和无线通信方法
公开(公告)号：US08040837B2
公开(公告)日：2011-10-18
申请号：US11916884
申请日：2006-06-08
申请人： Yoshio Urabe , Kenji Miyanaga , Kazuhiro Ando , Chalermphol Apichaichalermwongse , Tsutomu Mukai
发明人： Yoshio Urabe , Kenji Miyanaga , Kazuhiro Ando , Chalermphol Apichaichalermwongse , Tsutomu Mukai
IPC分类号： H04Q7/00
CPC分类号： H04W74/0808 , H04W56/002 , H04W72/1205
摘要： When communicating with a second wireless station, a first wireless station judges, based on link-related information received form the second wireless station and link-related information extracted from a signal transmitted by a fourth wireless station, whether a transmission link from the third wireless station to the fourth wireless station and a transmission link from the first wireless station to the second wireless station can be concurrently established without interference with each other. If judging affirmatively, the first wireless station transmits a signal to the second wireless station in synchronization with a signal transmitted by the third wireless station to the fourth wireless station. Preferably, when the first wireless station having a concurrent transmission control function communicates with the second wireless station having a interference reduction function, the first wireless station controls the interference reduction function of the second wireless station based on the link-related information received from the second wireless station and interference information, such that the transmission link from the third wireless station to the fourth wireless station and the transmission link from the first wireless station to the second wireless station can be established at the same time without interference with each other. If judging that the concurrent transmission is available, the first wireless station transmits a signal to the second wireless station according to a timing that overlaps transmission of a signal from the third wireless station to the fourth wireless station.
摘要翻译：当与第二无线站通信时，第一无线站基于从第二无线站接收到的链路相关信息和从由第四无线站发送的信号提取的链路相关信息来判断来自第三无线站的传输链路可以同时建立到第四无线站的站和从第一无线站到第二无线站的传输链路，而不会彼此干扰。如果肯定地判断，则第一无线站与第三无线站向第四无线站发送的信号同步地向第二无线站发送信号。优选地，当具有并发传输控制功能的第一无线站与具有干扰减少功能的第二无线站通信时，第一无线站基于从第二无线站接收到的链路相关信息来控制第二无线站的干扰减少功能无线站和干扰信息，使得可以同时建立从第三无线站到第四无线站的传输链路和从第一无线站到第二无线站的传输链路，而不会彼此干扰。如果判断并发传输可用，则第一无线站根据与从第三无线站到第四无线站的信号的传输重叠的定时向第二无线站发送信号。

8. 发明授权

US08724524B2 Wireless communication apparatus and wireless communication method 有权
标题翻译：无线通信装置和无线通信方法
公开(公告)号：US08724524B2
公开(公告)日：2014-05-13
申请号：US13233310
申请日：2011-09-15
申请人： Yoshio Urabe , Kenji Miyanaga , Kazuhiro Ando , Chalermphol Apichaichalermwongse , Tsutomu Mukai
发明人： Yoshio Urabe , Kenji Miyanaga , Kazuhiro Ando , Chalermphol Apichaichalermwongse , Tsutomu Mukai
IPC分类号： H04B7/005
CPC分类号： H04W74/0808 , H04W56/002 , H04W72/1205
摘要： When communicating with a second wireless station, a first wireless station judges, based on link-related information received from the second wireless station and link-related information extracted from a signal transmitted by a fourth wireless station, whether a transmission link from the third wireless station to the fourth wireless station and a transmission link from the first wireless station to the second wireless station can be concurrently established without interference with each other. If judging affirmatively, the first wireless station transmits a signal to the second wireless station in synchronization with a signal transmitted by the third wireless station to the fourth wireless station.
摘要翻译：当与第二无线站通信时，第一无线站基于从第二无线站接收到的链路相关信息和从由第四无线站发送的信号提取的链路相关信息来判断来自第三无线站的传输链路可以同时建立到第四无线站的站和从第一无线站到第二无线站的传输链路，而不会彼此干扰。如果肯定地判断，则第一无线站与第三无线站向第四无线站发送的信号同步地向第二无线站发送信号。

9. 发明申请

US20090296591A1 WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD 有权
标题翻译：无线通信设备和无线通信方法
公开(公告)号：US20090296591A1
公开(公告)日：2009-12-03
申请号：US11916884
申请日：2006-06-08
申请人： Yoshio Urabe , Kenji Miyanaga , Kazuhiro Ando , Chalermphol Apichaichalermwongse , Tsutomu Mukai
发明人： Yoshio Urabe , Kenji Miyanaga , Kazuhiro Ando , Chalermphol Apichaichalermwongse , Tsutomu Mukai
IPC分类号： H04L12/26
CPC分类号： H04W74/0808 , H04W56/002 , H04W72/1205
摘要： When communicating with a second wireless station, a first wireless station judges, based on link-related information received form the second wireless station and link-related information extracted from a signal transmitted by a fourth wireless station, whether a transmission link from the third wireless station to the fourth wireless station and a transmission link from the first wireless station to the second wireless station can be concurrently established without interference with each other. If judging affirmatively, the first wireless station transmits a signal to the second wireless station in synchronization with a signal transmitted by the third wireless station to the fourth wireless station. Preferably, when the first wireless station having a concurrent transmission control function communicates with the second wireless station having a interference reduction function, the first wireless station controls the interference reduction function of the second wireless station based on the link-related information received from the second wireless station and interference information, such that the transmission link from the third wireless station to the fourth wireless station and the transmission link from the first wireless station to the second wireless station can be established at the same time without interference with each other. If judging that the concurrent transmission is available, the first wireless station transmits a signal to the second wireless station according to a timing that overlaps transmission of a signal from the third wireless station to the fourth wireless station.
摘要翻译：当与第二无线站通信时，第一无线站基于从第二无线站接收到的链路相关信息和从由第四无线站发送的信号提取的链路相关信息来判断来自第三无线站的传输链路可以同时建立到第四无线站的站和从第一无线站到第二无线站的传输链路，而不会彼此干扰。如果肯定地判断，则第一无线站与第三无线站向第四无线站发送的信号同步地向第二无线站发送信号。优选地，当具有并发传输控制功能的第一无线站与具有干扰减少功能的第二无线站通信时，第一无线站基于从第二无线站接收到的链路相关信息来控制第二无线站的干扰减少功能无线站和干扰信息，使得可以同时建立从第三无线站到第四无线站的传输链路和从第一无线站到第二无线站的传输链路，而不会彼此干扰。如果判断并发传输可用，则第一无线站根据与从第三无线站到第四无线站的信号的传输重叠的定时向第二无线站发送信号。

10. 发明授权

US07545870B1 Reception device 有权
标题翻译：接收设备
公开(公告)号：US07545870B1
公开(公告)日：2009-06-09
申请号：US10582765
申请日：2005-04-12
申请人： Naganori Shirakata , Yukihiro Omoto , Yoshio Urabe , Yasuo Harada
发明人： Naganori Shirakata , Yukihiro Omoto , Yoshio Urabe , Yasuo Harada
IPC分类号： H04L7/00 , H04L27/28
CPC分类号： H04L27/266 , H04L27/2613 , H04L27/2642 , H04L27/2659 , H04L27/2662 , H04L27/2675 , H04L27/2679 , H04L2027/0067 , H04L2027/0095
摘要： A reception device according to the present invention receives a transmission frame including a synchronization symbol string, having a synchronization symbol repeated multiple times, inserted before a data symbol string. The synchronization symbol is obtained by synthesizing a plurality of sub band symbols which are mutually orthogonal and having different carrier frequencies. The carrier frequencies of the sub band symbols are located at an equal predetermined frequency interval. The synchronization symbol includes a repeated synchronization pattern. The reception device detects a rough carrier frequency error from a phase difference of a synchronization pattern correlation value to correct the frequency, and then detects a residual frequency error from an inter-symbol phase difference of each sub band to correct the frequency. The reception device detects a sampling clock frequency error from an inter-sub band phase difference to correct the frequency. Thus, the demodulation error of the data symbol is reduced.
摘要翻译：根据本发明的接收装置在数据符号串之前接收包括具有重复多次的同步符号的同步符号串的传输帧。通过合成相互正交且具有不同载波频率的多个子带符号来获得同步符号。子带符号的载波频率位于相等的预定频率间隔。同步符号包括重复的同步模式。接收装置根据同步模式相关值的相位差检测粗略载波频率误差，以校正频率，然后从每个子带的符号间相位差检测残留频率误差，以校正频率。接收装置从子频带相位差检测采样时钟频率误差，以校正频率。因此，减少数据符号的解调错误。

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