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    • 1. 发明授权
    • Wireless communication system, transmitting device, receiving device, and wireless communication method
    • 无线通信系统,发送设备,接收设备和无线通信方式
    • US09294251B2
    • 2016-03-22
    • US13982689
    • 2012-02-03
    • Jun MashinoTakatoshi Sugiyama
    • Jun MashinoTakatoshi Sugiyama
    • H04W80/04H04L5/00H04L1/00
    • H04L5/0058H04L1/0048H04L5/0007
    • 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.
    • 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。
    • 2. 发明授权
    • Wireless communication system, wireless relay station apparatus, wireless terminal station apparatus, and wireless communication method
    • 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
    • US08914714B2
    • 2014-12-16
    • US13498968
    • 2010-09-29
    • Nobuaki OtsukiYusuke AsaiTakatoshi Sugiyama
    • Nobuaki OtsukiYusuke AsaiTakatoshi Sugiyama
    • H03M13/00H04L1/00H04B7/155
    • H04B7/15521H04L1/0009H04L1/0076H04L2001/0097
    • 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.
    • 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 。
    • 4. 发明授权
    • Radio transceiver and radio transmitting method
    • 收音机和无线电发射方式
    • US07855994B2
    • 2010-12-21
    • US11411174
    • 2006-04-26
    • Hiromasa FujiiTakatoshi SugiyamaHitoshi Yoshino
    • Hiromasa FujiiTakatoshi SugiyamaHitoshi Yoshino
    • H04B7/216
    • H04W56/0085
    • 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.
    • 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。
    • 7. 发明授权
    • Radio receiver and radio signal receiving method
    • 无线电接收机和无线电信号接收方法
    • US07672221B2
    • 2010-03-02
    • US11452412
    • 2006-06-14
    • Hiromasa FujiHitoshi YoshinoTakatoshi Sugiyama
    • Hiromasa FujiHitoshi YoshinoTakatoshi Sugiyama
    • H04J11/00
    • H04L25/0206H04L25/0212H04L27/2662H04L27/2675H04L27/2676H04L27/2695H04W56/0065
    • 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.
    • 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。
    • 9. 发明申请
    • BASE STATION AND COMMUNICATIONS METHOD
    • 基站和通信方法
    • US20070249344A1
    • 2007-10-25
    • US11738140
    • 2007-04-20
    • Hiroyuki HosonoShinichi MoriTakatoshi Sugiyama
    • Hiroyuki HosonoShinichi MoriTakatoshi Sugiyama
    • H04Q7/20
    • H04W36/0083H04W8/005H04W28/14H04W48/16H04W72/12H04W88/08
    • A base station that communicates with a mobile station includes: a storing unit for storing a predetermined number of base station information, each including a base station ID for discriminating a specific base station and parameter information for radio communications set for the specific base station; an acquisition unit for acquiring a base station ID of other base stations forming a destination cell of the mobile station, or a base station ID of other base station forming a source cell of the mobile station; an aggregating unit for aggregating the number of times that each of the base station IDs is acquired in a first time period; a determination unit for determining a priority of each of the base station IDs on the basis of the aggregated results of the acquisition numbers; a judging unit for judging whether or not there is a base station ID which has a priority higher than the base station ID stored in the storage, and whose acquisition number is larger than a predetermined number of times; and a manager for deleting, from the storage, a base station information including a base station ID having a priority lower than the base station ID judged to have a higher priority, and for storing, in the storage, a base station information including the base station ID judged as to have the higher priority, in a case where the judging unit judges there is the base station ID having a higher priority and whose acquisition number is larger.
    • 与移动站通信的基站包括:存储单元,用于存储预定数量的基站信息,每个基站信息包括用于识别特定基站的基站ID和用于针对特定基站设置的无线电通信的参数信息; 获取单元,用于获取形成移动站的目的地小区的其他基站的基站ID,或形成移动站的源小区的其他基站的基站ID; 聚合单元,用于聚合在第一时间段中获取每个基站ID的次数; 确定单元,用于基于获取编号的聚合结果确定每个基站ID的优先级; 判断单元,用于判断是否存在优先级大于存储在存储器中的基站ID的基站ID,并且其获取数量大于预定次数; 以及管理者,从存储器中删除包括优先级低于被判定为具有较高优先级的基站ID的基站ID的基站信息,并且用于在存储器中存储包括基站的基站信息 在判断单元判定具有较高优先级的基站ID并且其获取数量较大的情况下,被判断为具有较高优先级的站ID。
    • 10. 发明申请
    • RADIO BASE STATION AND METHOD OF DETECTING OVERLAP OF RADIO COMMUNICATIONS PARAMETER
    • 无线电基站和无线电通信覆盖参数检测方法
    • US20070232313A1
    • 2007-10-04
    • US11695882
    • 2007-04-03
    • Hiroyuki HosonoShinichi MoriTakatoshi Sugiyama
    • Hiroyuki HosonoShinichi MoriTakatoshi Sugiyama
    • H04Q7/20
    • H04W88/08H04W72/08
    • Disclosed is a radio base station including: a common control channel transmission unit configured to transmit a common control channel by using radio communications parameter to be assigned to each radio base station; a transmission level determination unit configured to transmit the common control channel according to a predetermined transmission pattern; a reception level supervision unit configured to acquire a reception level of the common control channel received by a mobile station; and an overlap determination unit configured to determine whether or not the predetermined radio communications parameter overlaps with a radio communications parameter used in a different radio base station based on the reception level acquired by the reception level supervision unit and the predetermined transmission pattern.
    • 公开了一种无线电基站,包括:公共控制信道传输单元,被配置为通过使用要分配给每个无线电基站的无线电通信参数来发送公共控制信道; 发送电平确定单元,被配置为根据预定的发送模式发送公共控制信道; 接收电平监视单元,被配置为获取由移动台接收的公共控制信道的接收电平; 以及重叠确定单元,被配置为基于由所述接收电平监视单元获取的接收电平和所述预定传输模式来确定所述预定无线电通信参数是否与在不同无线电基站中使用的无线电通信参数重叠。