公开(公告)号：US08914714B2

公开(公告)日：2014-12-16

申请号：US13498968

申请日：2010-09-29

申请人： Nobuaki Otsuki ,  Yusuke Asai ,  Takatoshi Sugiyama

发明人： Nobuaki Otsuki ,  Yusuke Asai ,  Takatoshi Sugiyama

IPC分类号： H03M13/00 ,  H04L1/00 ,  H04B7/155

CPC分类号： H04B7/15521 ,  H04L1/0009 ,  H04L1/0076 ,  H04L2001/0097

摘要： Provided is a wireless communication system employing network coding which can set transmission quality for each destination of packets and improve throughput. The wireless communication system is provided with a wireless relay station apparatus and wireless terminal station apparatuses. The wireless relay station apparatus selects coding rates to be used for a first packet and a second packet in accordance with communication quality required for the first packet and the second packet, generates error correction encoded packets having the same data length from the first packet and the second packet using the selected coding rates, performs network encoding on the error correction encoded first and second packets to generate a network encoded packet, and transmits the generated network encoded packet. The wireless terminal station apparatus performs error correction encoding on a third packet equal to one of the first and second packets, performs network decoding on a received network encoded packet using the error correction encoded third packet to generate a decoded packet, and performs error correction decoding.

摘要翻译： 提供一种采用网络编码的无线通信系统，其可以为分组的每个目的地设置传输质量并提高吞吐量。 无线通信系统具备无线中继站装置和无线终端装置。 无线中继站装置根据第一分组和第二分组所需的通信质量选择要用于第一分组和第二分组的编码率，从第一分组生成具有相同数据长度的纠错编码分组， 使用所选择的编码率的第二分组，对纠错编码的第一和第二分组执行网络编码，以生成网络编码分组，并发送生成的网络编码分组。 无线终端装置对与第一和第二分组之一相等的第三分组进行纠错编码，使用纠错编码的第三分组对接收的网络编码分组进行网络解码，生成解码分组，进行纠错解码 。

公开(公告)号：US20120239997A1

公开(公告)日：2012-09-20

申请号：US13498968

申请日：2010-09-29

申请人： Nobuaki Otsuki ,  Yusuke Asai ,  Takatoshi Sugiyama

发明人： Nobuaki Otsuki ,  Yusuke Asai ,  Takatoshi Sugiyama

IPC分类号： H03M13/00 ,  H04W28/04

CPC分类号： H04B7/15521 ,  H04L1/0009 ,  H04L1/0076 ,  H04L2001/0097

摘要： Provided is a wireless communication system employing network coding which can set transmission quality for each destination of packets and improve throughput. The wireless communication system is provided with a wireless relay station apparatus and wireless terminal station apparatuses. The wireless relay station apparatus selects coding rates to be used for a first packet and a second packet in accordance with communication quality required for the first packet and the second packet, generates error correction encoded packets having the same data length from the first packet and the second packet using the selected coding rates, performs network encoding on the error correction encoded first and second packets to generate a network encoded packet, and transmits the generated network encoded packet. The wireless terminal station apparatus performs error correction encoding on a third packet equal to one of the first and second packets, performs network decoding on a received network encoded packet using the error correction encoded third packet to generate a decoded packet, and performs error correction decoding.

摘要翻译： 提供一种采用网络编码的无线通信系统，其可以为分组的每个目的地设置传输质量并提高吞吐量。 无线通信系统具备无线中继站装置和无线终端装置。 无线中继站装置根据第一分组和第二分组所需的通信质量选择要用于第一分组和第二分组的编码率，从第一分组生成具有相同数据长度的纠错编码分组， 使用所选择的编码率的第二分组，对纠错编码的第一和第二分组执行网络编码，以生成网络编码分组，并发送生成的网络编码分组。 无线终端装置对与第一和第二分组之一相等的第三分组进行纠错编码，使用纠错编码的第三分组对接收到的网络编码分组进行网络解码，生成解码分组，进行纠错解码 。

公开(公告)号：US07463577B2

公开(公告)日：2008-12-09

申请号：US10488610

申请日：2003-04-09

申请人： Hiroaki Sudo ,  Takatoshi Sugiyama ,  Yusuke Asai

发明人： Hiroaki Sudo ,  Takatoshi Sugiyama ,  Yusuke Asai

IPC分类号： H04J11/00 ,  H04J1/00 ,  H04Q7/00

CPC分类号： H04L5/0048 ,  H04L1/06 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/006 ,  H04L5/0082 ,  H04L5/0085 ,  H04L25/0232 ,  H04L25/0244

摘要： When OFDM signals are transmitted from a plurality of antennas, a pilot carrier is transmitted from one antenna among the plurality of antennas, and a null signal is transmitted from an antenna other than that antenna by a subcarrier of the frequency band that transmits the pilot carrier.

摘要翻译： 当从多个天线发送OFDM信号时，从多个天线中的一个天线发送导频载波，并且通过发送导频载波的频带的副载波从除天线之外的天线发送空信号 。

公开(公告)号：US20100291877A1

公开(公告)日：2010-11-18

申请号：US12812102

申请日：2009-02-05

申请人： Jun Mashino ,  Takatoshi Sugiyama ,  Kentaro Nishimori ,  Kengo Nagata ,  Yusuke Asai

发明人： Jun Mashino ,  Takatoshi Sugiyama ,  Kentaro Nishimori ,  Kengo Nagata ,  Yusuke Asai

IPC分类号： H04B15/00

CPC分类号： H04W24/02 ,  H04B1/7103 ,  H04W16/14

摘要： An interference cancelling station ICS includes a transmission weight factor calculating unit calculating a transmission weight factor w2 and an interference cancelling data signal transmitting unit generating an interference cancelling data signal by multiplying, by the transmission weight factor w2, a data signal transmitted by a base station BSb of the wireless communication system B and transmitting the interference cancelling data signal in synchronization with timing with which the base station BSb of a wireless communication system B transmits the data signal, and a mobile station MSa of a wireless communication system A receives a data signal transmitted by a base station BSa of the wireless communication system A, the data signal having cancelled interference from the base station BSb of the wireless communication system B.

摘要翻译： 干扰消除台ICS包括发送权重因子计算单元，其计算发送权重因子w2，以及干扰消除数据信号发送单元，其通过以发送权重因子w2乘以由基站发送的数据信号来生成干扰消除数据信号 无线通信系统B的BSb，与无线通信系统B的基站BSb发送数据信号的定时同步地发送干扰消除数据信号，无线通信系统A的移动台MSa接收数据信号 由无线通信系统A的基站BSa发送的数据信号具有来自无线通信系统B的基站BSb的干扰。

公开(公告)号：US08369789B2

公开(公告)日：2013-02-05

申请号：US12812102

申请日：2009-02-05

申请人： Jun Mashino ,  Takatoshi Sugiyama ,  Kentaro Nishimori ,  Kengo Nagata ,  Yusuke Asai

发明人： Jun Mashino ,  Takatoshi Sugiyama ,  Kentaro Nishimori ,  Kengo Nagata ,  Yusuke Asai

IPC分类号： H04B1/00 ,  H04B15/00

CPC分类号： H04W24/02 ,  H04B1/7103 ,  H04W16/14

摘要： An interference cancelling station ICS includes a transmission weight factor calculating unit calculating a transmission weight factor w2 and an interference cancelling data signal transmitting unit generating an interference cancelling data signal by multiplying, by the transmission weight factor w2, a data signal transmitted by a base station BSb of the wireless communication system B and transmitting the interference cancelling data signal in synchronization with timing with which the base station BSb of a wireless communication system B transmits the data signal, and a mobile station MSa of a wireless communication system A receives a data signal transmitted by a base station BSa of the wireless communication system A, the data signal having cancelled interference from the base station BSb of the wireless communication system B.

摘要翻译： 干扰消除台ICS包括发送权重因子计算单元，其计算发送权重因子w2，以及干扰消除数据信号发送单元，其通过以发送权重因子w2乘以由基站发送的数据信号来生成干扰消除数据信号 无线通信系统B的BSb，与无线通信系统B的基站BSb发送数据信号的定时同步地发送干扰消除数据信号，无线通信系统A的移动台MSa接收数据信号 由无线通信系统A的基站BSa发送的数据信号具有来自无线通信系统B的基站BSb的干扰。

公开(公告)号：US07242720B2

公开(公告)日：2007-07-10

申请号：US10117390

申请日：2002-04-05

申请人： Takatoshi Sugiyama ,  Yusuke Asai ,  Satoshi Kurosaki ,  Masahiro Umehira ,  Daisei Uchida ,  Yasuo Suzuki

发明人： Takatoshi Sugiyama ,  Yusuke Asai ,  Satoshi Kurosaki ,  Masahiro Umehira ,  Daisei Uchida ,  Yasuo Suzuki

IPC分类号： H04K1/10 ,  H04B7/02

CPC分类号： H04L27/2662 ,  H04L1/06 ,  H04L27/2602 ,  H04L27/2637 ,  H04L27/2657 ,  H04L27/2679 ,  H04L2027/0026 ,  H04L2027/0087

摘要： An OFDM signal communication system used in broadband mobile communication, achieves stable operation under severe frequency selective fading environments, giving high quality. The OFDM signal communication system which transmits OFDM signals over the same radio frequency from N transmitting antennas, has an inverse matrix computer for computing an N×N inverse matrix constituted by propagation coefficients for respective propagation paths between each of N transmitting antennas and each of N receiving antennas, and a subcarrier demodulator which separates the signals of the respective propagation paths, based on the obtained inverse matrix.

摘要翻译： 宽带移动通信中使用的OFDM信号通信系统，在严重频率选择性衰落环境下实现稳定运行，提供高质量。 从N个发射天线在相同射频上发送OFDM信号的OFDM信号通信系统具有逆矩阵计算机，用于计算由N个发射天线和N个接收天线中的每一个之间的各个传播路径的传播系数构成的N×N逆矩阵 以及基于所获得的逆矩阵来分离各个传播路径的信号的副载波解调器。

公开(公告)号：US09294251B2

公开(公告)日：2016-03-22

申请号：US13982689

申请日：2012-02-03

申请人： Jun Mashino ,  Takatoshi Sugiyama

发明人： Jun Mashino ,  Takatoshi Sugiyama

IPC分类号： H04W80/04 ,  H04L5/00 ,  H04L1/00

CPC分类号： H04L5/0058 ,  H04L1/0048 ,  H04L5/0007

摘要： The receiving device receives a transmitted signal from a transmitting device by dividing by N the spectrum of a signal to be transmitted and performing spectrum editing to reduce its occupied bands. The receiving device generates a first decoded signal by error-correcting and decoding this received signal in the bandwidth of the signal to be transmitted, and generates a transmission replica signal from this first decoded signal and divides by N the spectrum of this transmission replica signal to generate N sub-replicas. The receiving device generates a compensated received signal by restoring the spectrum of the signal to be transmitted from the transmitting device using the N sub-replicas and the received signal, and decodes this compensated received signal to generate a second decoded signal.

摘要翻译： 接收装置通过将N发送的信号的频谱除以发送装置的发送信号，进行频谱编辑，以减少占用频带。 接收装置通过在要发送的信号的带宽中对该接收信号进行纠错和解码来生成第一解码信号，并从该第一解码信号生成发送复制信号，并将该发送复制信号的频谱除以N， 生成N个副副本。 接收装置通过使用N个副副本和接收信号来恢复从发送装置发送的信号的频谱来产生经补偿的接收信号，并对该经补偿的接收信号进行解码，生成第二解码信号。

公开(公告)号：US08149864B2

公开(公告)日：2012-04-03

申请号：US12709055

申请日：2010-02-19

申请人： Akira Yamada ,  Kei Igarashi ,  Takatoshi Sugiyama

发明人： Akira Yamada ,  Kei Igarashi ,  Takatoshi Sugiyama

IPC分类号： H04L12/413

CPC分类号： H04W72/1231 ,  H04W56/0015 ,  H04W56/0045 ,  H04W74/08 ,  H04W92/10

摘要： A communication terminal used in a mobile communication system complying with a carrier sense multiple access scheme is disclosed. The communication terminal includes: a receiving unit configured to receive a wireless packet transmitted by another communication terminal or a base station; a determination unit configured to determine periodic transmission timing of the communication terminal based on determination criterion information included in the wireless packet; and a transmission unit configured to periodically transmit wireless packets to the base station based on the transmission timing.

摘要翻译： 公开了一种在符合载波侦听多路访问方案的移动通信系统中使用的通信终端。 通信终端包括：接收单元，被配置为接收由另一通信终端或基站发送的无线分组; 确定单元，被配置为基于包括在所述无线分组中的确定标准信息来确定所述通信终端的周期性传输定时; 以及发送单元，被配置为基于所述发送定时周期性地向所述基站发送无线分组。

公开(公告)号：US07855994B2

公开(公告)日：2010-12-21

申请号：US11411174

申请日：2006-04-26

申请人： Hiromasa Fujii ,  Takatoshi Sugiyama ,  Hitoshi Yoshino

发明人： Hiromasa Fujii ,  Takatoshi Sugiyama ,  Hitoshi Yoshino

IPC分类号： H04B7/216

CPC分类号： H04W56/0085

摘要： In a mobile communication system, multiple transceivers perform radio communications in the same frequency band. A transceiver (700) comprises a first sync timing detection part (706) configured to detect sync timing for a desired signal transmitted from a counterpart transceiver; a second sync timing detection part (708, 710) configured to detect sync timings for one or more undesired signals from non-counterpart transceiver(s); an error information determination part (712) configured to determine error information based on the sync timings for the desired and undesired signals; a signal generating part (714) configured to generate a feedback signal containing the error information; a transmission timing determination part (722) configured to update transmission timing for a transmission signal including the feedback signal according to a control signal received from the counterpart transceiver; and a transmission part (736) configured to transmit the transmission signal to the counterpart transceiver according to the updated transmission timing.

摘要翻译： 在移动通信系统中，多个收发机执行相同频带的无线电通信。 收发器（700）包括：第一同步定时检测部分（706），被配置为检测从对方收发器发送的期望信号的同步定时; 第二同步定时检测部分（708,710），被配置为检测来自非对应收发器的一个或多个不期望信号的同步定时; 错误信息确定部分，被配置为基于所述期望信号和不期望信号的同步定时确定误差信息; 信号生成部（714），被配置为生成包含所述错误信息的反馈信号; 发送定时确定部（722），被配置为根据从所述对方收发器接收的控制信号来更新包括所述反馈信号的发送信号的发送定时; 以及发送部（736），被配置为根据更新的发送定时将发送信号发送到对方收发信机。

公开(公告)号：US07826850B2

公开(公告)日：2010-11-02

申请号：US11232023

申请日：2005-09-22

申请人： Naoto Matoba ,  Hitoshi Yoshino ,  Takatoshi Sugiyama

发明人： Naoto Matoba ,  Hitoshi Yoshino ,  Takatoshi Sugiyama

IPC分类号： H04B1/18

CPC分类号： H04L5/0064 ,  H04L5/0005 ,  H04L5/0037 ,  H04L5/006 ,  H04L5/0062 ,  H04W16/14 ,  H04W72/0453 ,  H04W72/085 ,  H04W72/087

摘要： A frequency band allocation device is disclosed. The frequency band allocation device comprises a frequency band selection unit (1161, 1162) for selecting usable frequency bands from a dedicated frequency band, a registered frequency band and an unlicensed frequency band; and a frequency band allocation unit (1163) for allocating a frequency band out of the selected usable frequency bands to an uplink and downlink, so as to satisfy user required QoS.

摘要翻译： 公开了一种频带分配装置。 频带分配装置包括用于从专用频带，注册频带和未许可频带中选择可用频带的频带选择单元（1161,1122） 以及用于将所选择的可用频带中的频带分配给上行链路和下行链路的频带分配单元（1163），以满足用户所需的QoS。