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1. 发明授权

US06188697B1 ATM cell transport system for wireless communications 失效
标题翻译：用于无线通信的ATM信元传输系统
公开(公告)号：US06188697B1
公开(公告)日：2001-02-13
申请号：US08864783
申请日：1997-05-29
申请人： Masahiro Umehira , Hijin Satoh , Takatoshi Sugiyama , Atsushi Ohta , Yuichi Sagawa
发明人： Masahiro Umehira , Hijin Satoh , Takatoshi Sugiyama , Atsushi Ohta , Yuichi Sagawa
IPC分类号： H04L1256
CPC分类号： H04Q11/0478 , H04L2012/5607 , H04L2012/5649 , H04L2012/5651 , H04L2012/5672 , H04L2012/5681
摘要： An asynchronous transfer mode (“ATM”) cell transfer system in a wireless communication system provides quality classes that correspond to the amount of cell transfer delay allowed. Cells are classified according to a quality class and stored in buffers. The cells are read starting from the buffer for the quality class with the highest priority, and successively from buffers for quality classes of lower priority. Alternatively, if there is room in the output interval of cells of a higher priority quality class, cells of a lower quality class are inserted among these cells.
摘要翻译：无线通信系统中的异步传输模式（“ATM”）小区传送系统提供与允许的小区传输延迟量对应的质量等级。细胞根据质量等级分类并存储在缓冲液中。从具有最高优先级的质量等级的缓冲器开始读取单元，并从缓冲器连续读取较低优先级的质量等级。或者，如果在较高优先级质量等级的单元的输出间隔中存在空间，则在这些单元之间插入较低质量等级的单元。

2. 发明授权

US07242720B2 OFDM signal communication system, OFDM signal transmitting device and OFDM signal receiving device 有权
标题翻译： OFDM信号通信系统，OFDM信号发送装置和OFDM信号接收装置
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。

3. 发明授权

US5862175A Digital transmission apparatus using differential coding and forward error correction 失效
标题翻译：使用差分编码和前向纠错的数字传输装置
公开(公告)号：US5862175A
公开(公告)日：1999-01-19
申请号：US753726
申请日：1996-11-29
申请人： Takatoshi Sugiyama , Masahiro Umehira
发明人： Takatoshi Sugiyama , Masahiro Umehira
IPC分类号： H04L1/00 , H04L27/18 , H04B1/38 , H04B7/216 , H04J3/24 , H04L23/02
CPC分类号： H04L1/0047 , H04L1/0042 , H04L27/18 , H04L1/0058 , H04L1/0071
摘要： A digital transmission apparatus is provided, by which the amount of transmission delay and circuit miniaturization can be realized in the case of using an FEC method together with a differential coding method. In the digital transmission apparatus, a digital signal to be transmitted is serial-to-parallel-converted into parallel n-channel signals; each signal is FEC-encoded and encoded signals are then differentially encoded; and a carrier is modulated by the parallel n-channel differentially-encoded signals to be transmitted as a 2.sup.n multi-level modulated signal. The signal is detected at the receiving side and parallel n-channel demodulated and decoded signals are output; FEC decoding is performed; and the parallel n-channel digital signals after FEC decoding is parallel-to-serial-converted. When block coding is used as an FEC method, parallel n-channel digital signals to be transmitted are respectively processed by block-encoding of the same logic; the parallel n-channel signals after encoding are differentially encoded; and a carrier is modulated by the parallel n-channel differentially-encoded signals to be transmitted as a 2.sup.n multi-level modulated signal. At the receiving side, parallel n-channel signals after detection are stored; syndrome data for detecting an error bit position for each signal is calculated; and based on the syndrome data, time-series detection of each error bit position is performed so as to correct the errors included in the stored signals.
摘要翻译：提供一种数字传输装置，通过该数字传输装置，在使用FEC方法和差分编码方法的情况下，可以实现传输延迟量和电路小型化。在数字发送装置中，要发送的数字信号被串行 - 并行转换为并行的n信道信号; 每个信号被FEC编码，然后对编码的信号进行差分编码; 并且载波由并行的n信道差分编码信号调制以作为2n多级调制信号发送。在接收端检测信号，并输出并行的n信道解调和解码信号; 执行FEC解码; 并且FEC解码之后的并行n信道数字信号被并行到串行转换。当块编码被用作FEC方法时，要发送的并行n信道数字信号分别通过相同逻辑的块编码来处理; 编码后的并行n信道信号进行差分编码; 并且载波由并行的n信道差分编码信号调制以作为2n多级调制信号发送。在接收侧，存储检测后的并行n信道信号; 计算用于检测每个信号的错误位位置的校正数据; 并且基于校正子数据，执行每个错误位位置的时间序列检测，以校正存储的信号中包括的错误。

4. 发明授权

US09294251B2 Wireless communication system, transmitting device, receiving device, and wireless communication method 有权
标题翻译：无线通信系统，发送设备，接收设备和无线通信方式
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。

5. 发明授权

US08914714B2 Wireless communication system, wireless relay station apparatus, wireless terminal station apparatus, and wireless communication method 有权
标题翻译：无线通信系统，无线中继站装置，无线终端装置以及无线通信方式
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。

6. 发明授权

US08149864B2 Wireless communication terminal and wireless communication method 有权
标题翻译：无线通信终端和无线通信方式
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。

7. 发明授权

US07855994B2 Radio transceiver and radio transmitting method 有权
标题翻译：收音机和无线电发射方式
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。

8. 发明授权

US07826850B2 Frequency band allocation device and method 失效
标题翻译：频带分配装置及方法
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。

9. 发明授权

US07672221B2 Radio receiver and radio signal receiving method 有权
标题翻译：无线电接收机和无线电信号接收方法
公开(公告)号：US07672221B2
公开(公告)日：2010-03-02
申请号：US11452412
申请日：2006-06-14
申请人： Hiromasa Fuji , Hitoshi Yoshino , Takatoshi Sugiyama
发明人： Hiromasa Fuji , Hitoshi Yoshino , Takatoshi Sugiyama
IPC分类号： H04J11/00
CPC分类号： H04L25/0206 , H04L25/0212 , H04L27/2662 , H04L27/2675 , H04L27/2676 , H04L27/2695 , H04W56/0065
摘要： An OFDM receiver includes a timing error detection unit that determines error information based on a difference between receiving timing of a desired signal from a counterpart transmitter and receiving timing of an undesired signal from a non-counterpart transmitter. The timing error detection unit includes a pilot signal detection unit configured to detect a pilot signal of the desired signal and a pilot signal of the undesired signal from an FFT-processed received signal; a first converting unit configured to convert a frequency-domain channel estimate derived from the pilot signal of the desired signal to a first time-domain channel impulse response; a second converting unit configured to convert a frequency-domain channel estimate derived from the pilot signal of the undesired signal to a second time-domain channel impulse response; and an error information determination unit configured to determine the error information based on the first and second channel impulse responses.
摘要翻译： OFDM接收机包括定时误差检测单元，该定时误差检测单元基于来自对方发射机的期望信号的接收定时之间的差异以及来自非对应发射机的非期望信号的定时来确定误差信息。定时误差检测单元包括导频信号检测单元，被配置为从FFT处理的接收信号中检测所需信号的导频信号和不需要信号的导频信号; 第一转换单元，被配置为将从期望信号的导频信号导出的频域信道估计转换为第一时域信道脉冲响应; 第二转换单元，被配置为将从所述不期望信号的导频信号导出的频域信道估计转换为第二时域信道脉冲响应; 以及错误信息确定单元，被配置为基于所述第一和第二信道脉冲响应来确定所述错误信息。

10. 发明授权

US07463577B2 OFDM communication method and OFDM communication device 有权
标题翻译： OFDM通信方法和OFDM通信设备
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。

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