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1. 发明专利

JP2015026947A 無線通信システム及び無線通信方法审中-公开
标题翻译：无线通信系统和无线通信方法
公开(公告)号：JP2015026947A
公开(公告)日：2015-02-05
申请号：JP2013154651
申请日：2013-07-25
申请人：日本電信電話株式会社 , Nippon Telegr & Teleph Corp
发明人： KUMAGAI TOMOAKI , SHIMIZU YOSHITAKA , GOTO KAZUTO , YOSHINO SHUICHI
IPC分类号： H04W84/18
摘要：【課題】ツリー型トポロジを有する無線マルチホップネットワークを構成する無線通信システムにおいて、システムスループットを向上させることができる無線通信システムを提供する。【解決手段】高々2つの無線通信インタフェースを備える第1のアクセスポイントと、高々2つの無線通信インタフェースと有線通信インタフェースとを備えた複数の第2のアクセスポイントと、集線装置とを備え、前記第1のアクセスポイントと中継接続して外部の通信ネットワークと接続するゲートウェイアクセスポイントとを用いてツリー型トポロジを有する無線マルチホップネットワークを構成する無線通信システムであって、前記ゲートウェイアクセスポイントが備える複数の前記第2のアクセスポイントは、前記有線通信インタフェースを介して前記集線装置に有線接続され、前記集線装置が前記外部の通信ネットワークに接続されている。【選択図】図1
摘要翻译：要解决的问题：提高配置具有树型拓扑的无线多跳网络的无线通信系统中的系统吞吐量。解决方案：提供一种无线通信系统，其通过以下方式配置具有树型拓扑的无线多跳网络使用：最多具有两个无线通信接口的第一接入点; 以及网关接入点，其具有集中器和多个第二接入点，每个第二接入点最多具有两个无线通信接口和有线通信接口，并且与所述第一接入点中继连接并与外部通信网络连接。包括在网关接入点中的多个第二接入点经由有线通信接口与集线器连线。集线器与外部通信网络连接。

2. 发明专利

JP2014116682A Radio channel allocation method, communication system and centralized control station device 有权
标题翻译：无线电频道分配方法，通信系统和集中控制站装置
公开(公告)号：JP2014116682A
公开(公告)日：2014-06-26
申请号：JP2012267393
申请日：2012-12-06
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社 , Tohoku Univ , 国立大学法人東北大学
发明人： KUMAGAI TOMOAKI , SHIMIZU YOSHITAKA , MIZUNO KOHEI , ADACHI FUMIYUKI
IPC分类号： H04W16/14 , H04W28/18 , H04W72/04
摘要： PROBLEM TO BE SOLVED: To improve efficiency of radio communication even in the situation where another radio terminal device using an overlapping radio frequency is present in the vicinity and an interference signal is generated.SOLUTION: A centralized control station (AC) 10 comprises: a collection section 10-1 for collecting radio transmission related information from base station devices AP1-AP8; a grouping section 10-2 for dividing the one or more base station devices into a plurality of groups on the basis of the radio transmission related information, such that the base stations positioned in the vicinity more belong to the same group; and a radio channel notification section 10-3 in which a radio channel group is allocated and reported in the order starting from the group positioned more in the vicinity of a group to which the radio channel group has been already allocated, so as to avoid the radio channels already allocated to neighboring groups. Each of the base station devices AP1-AP8 includes a use radio channel determination section 30 for determining a radio channel to be utilized from an available radio channel group reported from the centralized control station (AC) 10.
摘要翻译：要解决的问题：即使在附近存在使用重叠射频的另一无线电终端装置和产生干扰信号的情况下，也提高无线电通信的效率。解决方案：集中控制站（AC）10包括：收集部10-1，用于从基站装置AP1〜AP8收集无线发送相关信息; 分组部分10-2，用于基于无线电传输相关信息将一个或多个基站设备划分成多个组，使得位于附近的基站更属于同一组; 以及无线电信道通知部分10-3，其中以从更多在已经分配了无线电信道组的组的附近的组开始的顺序分配和报告无线电信道组，以避免已经分配给邻近组的无线电频道。基站装置AP1〜AP8中的每一个包括使用无线电信道确定部分30，用于从集中控制站（AC）10报告的可用无线电信道组中确定要使用的无线电信道。

3. 发明专利

JP2013150145A Radio system, radio wave monitor and information collection device 有权
标题翻译：无线电系统，无线电波监视器和信息采集设备
公开(公告)号：JP2013150145A
公开(公告)日：2013-08-01
申请号：JP2012008933
申请日：2012-01-19
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： SHIMIZU TATSUYA , MIYAKOSHI YUUKI , SHIMIZU YOSHITAKA , KOBAYASHI MAMORU , YOSHINO SHUICHI
IPC分类号： H04W24/08 , H04W16/14
摘要： PROBLEM TO BE SOLVED: To identify a frequency band that can be allocated simultaneously to regions of a plurality of radio wave monitors in spread spectrum sensing.SOLUTION: A radio system comprises a plurality of radio wave monitors and an information collection device which receives radio wave information from the radio wave monitors. Each of the radio wave monitors includes a receiver which receives a radio wave and acquires a power value for each frequency band of the received radio wave, a notifier which notifies the information collection device about the power value for each frequency band as radio wave information, and a transmitter which transmits a radio wave. The information collection device includes a storage which receives radio wave information from the radio wave monitors and stores the radio wave information.
摘要翻译：要解决的问题：为了识别可以在扩展频谱感测中同时分配多个无线电波监视器的区域的频带。解决方案：无线电系统包括多个无线电波监视器和接收无线电波的信息收集装置来自无线电波监视器的信息。每个无线电波监视器包括接收无线电波并获取接收到的无线电波的每个频带的功率值的接收机，向每个频带通知信息收集设备关于每个频带的功率值的通知器作为无线电波信息，以及发射无线电波的发射机。信息收集装置包括从无线电波监视器接收无线电波信息并存储无线电波信息的存储器。

4. 发明专利

JP2013121123A Retransmission packet detection circuit and retransmission packet detection method 审中-公开
标题翻译：恢复包检测电路和恢复包检测方法
公开(公告)号：JP2013121123A
公开(公告)日：2013-06-17
申请号：JP2011269089
申请日：2011-12-08
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： FUJINO YOSUKE , SHIRATO YUSHI , SHIMIZU YOSHITAKA , FUJITA TAKASHI , GOTO KAZUTO , YOSHINO SHUICHI
IPC分类号： H04L1/16 , H04W28/04
摘要： PROBLEM TO BE SOLVED: To provide a retransmission packet detection circuit capable of detecting a retransmission packet without increasing a load of calculation processing.SOLUTION: The retransmission packet detection circuit comprises: storage means for storing the signal replica of a retransmission packet to be detected; correlation calculation means for calculating a cross-correlation value between a received signal and the signal replica stored in the storage means; correlation determination means for determining whether or not the received signal is a retransmission packet, from whether the calculated cross-correlation value exceeds a predetermined threshold; and synchronizing position detection means which detects the start position of the retransmission packet from the received signal and controls the correlation calculation means so as to calculate the cross-correlation value from the detected start position.
摘要翻译：解决的问题：提供一种能够在不增加计算处理的负担的情况下检测重发分组的重发分组检测电路。解决方案：重传分组检测电路包括：存储装置，用于存储要检测的重传分组的信号副本; 相关计算装置，用于计算接收信号和存储在存储装置中的信号副本之间的互相关值; 相关确定装置，用于根据所计算的互相关值是否超过预定阈值，确定接收信号是否是重发分组; 以及同步位置检测装置，其从接收信号检测重传分组的开始位置，并控制相关计算装置，以便根据检测到的起始位置计算互相关值。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2013110510A Radio communication device, radio communication method, and radio communication program 有权
标题翻译：无线电通信设备，无线电通信方法和无线电通信程序
公开(公告)号：JP2013110510A
公开(公告)日：2013-06-06
申请号：JP2011252711
申请日：2011-11-18
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： FUJINO YOSUKE , SHIMIZU YOSHITAKA , SHIMIZU TATSUYA , YOSHINO SHUICHI
IPC分类号： H04B1/48 , H04B1/10 , H04B7/015
摘要： PROBLEM TO BE SOLVED: To avoid a deterioration in estimation accuracy and achieve a stable and high degree of signal separation in a radio communication device separating a transmission signal and a reception signal.SOLUTION: A radio communication device separates a transmission signal and a reception signal, and comprises: an antenna for transmitting and receiving a signal; transmission means for transmitting a transmission signal via the antenna; propagation path estimation means for estimating the phase amplitude response of a signal having sneaked from a transmission side into a reception side in a propagation path estimation section; replica generation means for generating a wraparound signal replica on the basis of the estimated phase amplitude response and the transmission signal; subtraction means for subtracting the wraparound signal replica from a reception signal received via the antenna; and receiving means for performing reception processing of the reception signal after the subtraction. The radio communication device further comprises: auto-correlation calculation means for calculating the worst value of an auto-correlation characteristic of the transmission signal within a prescribed delay time; and propagation path estimation section determination means for determining that a section where the worst value of the auto-correlation characteristic is equal to or less than a threshold value is to be the propagation path estimation section.
摘要翻译：要解决的问题：为了避免在分离发送信号和接收信号的无线电通信装置中的估计精度的劣化并且实现稳定和高度的信号分离。解决方案：无线电通信设备分离发送信号和接收信号，并且包括：用于发送和接收信号的天线; 用于经由天线发送发送信号的发送装置; 传播路径估计装置，用于估计在传播路径估计部分中从发送侧潜入接收侧的信号的相位幅度响应; 复制产生装置，用于基于估计的相位幅度响应和发送信号产生环绕信号副本; 减法装置，用于从经由天线接收的接收信号中减去环绕信号副本; 以及接收装置，用于在减法之后执行接收信号的接收处理。无线通信装置还包括：自动相关计算装置，用于在规定的延迟时间内计算发送信号的自相关特性的最差值; 以及传播路径估计部确定装置，用于确定自相关特性的最差值等于或小于阈值的部分是传播路径估计部。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2013098855A Radio communication system and radio communication method 有权
标题翻译：无线电通信系统和无线电通信方法
公开(公告)号：JP2013098855A
公开(公告)日：2013-05-20
申请号：JP2011241362
申请日：2011-11-02
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： KOBAYASHI MAMORU , SHIMIZU YOSHITAKA , YOSHINO SHUICHI
IPC分类号： H04W88/10 , H04W84/10 , H04W92/20
摘要： PROBLEM TO BE SOLVED: To enable forming of a network with a plurality of radio communication devices having different radio communication schemes.SOLUTION: A first base station reads out software from a storage unit that stores software, and sends an inquiry to a second base station based on a radio scheme associated with the software. If there is no response to after inquiries are made based on all of the radio schemes stored in the storage unit, the first base station acquires software for a radio scheme that is not stored in the storage unit, from a radio signal processing device. The second base station, on receipt of an inquiry from the first base station with a radio scheme usable by the second base station, makes a response using the radio scheme.
摘要翻译：要解决的问题：为了能够与具有不同无线电通信方案的多个无线电通信装置形成网络。解决方案：第一基站从存储软件的存储单元读出软件，并且基于与该软件相关联的无线电方案向第二基站发送查询。如果没有响应于根据存储在存储单元中的所有无线电方案进行查询，则第一基站从无线电信号处理装置获取未存储在存储单元中的无线电方案的软件。第二基站在利用第二基站可用的无线电方案接收到来自第一基站的询问时，使用该无线方案作出响应。版权所有（C）2013，JPO＆INPIT

7. 发明专利

JP2010199823A Radio communication method, radio communication system and base station 有权
标题翻译：无线电通信方法，无线电通信系统和基站
公开(公告)号：JP2010199823A
公开(公告)日：2010-09-09
申请号：JP2009040839
申请日：2009-02-24
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： SHIMIZU YOSHITAKA , NUNO FUSAO
IPC分类号： H04W74/02 , H04W72/04 , H04W72/10
摘要： PROBLEM TO BE SOLVED: To provide a radio communication method, a radio communication system and a base station, for guaranteeing the transmission delay time in communication on a random access basis. SOLUTION: A number-of-RACH range determination part 35 outputs the number of RACHs to an average time calculation part 33 for each service class for which the stipulated time is requested. The average time calculation part 33 estimates the average transmission time of the service class on the basis of the inputted number of RACHs and a traffic parameter measured by a traffic measurement part 31. Also, the number-of-RACH range determination part 35 determines whether or not the estimated average transmission time satisfies the stipulated time, and determines the optimum number of RACHs within the number of RACHs for satisfying it. A RACH allocation part 39 allocates the number of RACHs determined for each service class in a random access section. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种无线电通信方法，无线电通信系统和基站，用于在随机接入的基础上保证通信中的传输延迟时间。解决方案：RACH数量范围确定部件35对于要求规定时间的每个服务等级，将平均时间计算部分33的RACH数量输出。平均时间计算部33基于输入的RACH数和由通信量测量部31测定的流量参数来估计服务等级的平均传送时间。另外，RACH范围确定部35判定是否或者估计的平均传输时间不满足规定的时间，并且确定用于满足RACH的数量的RACH的最佳数量。 RACH分配部件39分配在随机接入部分中针对每个服务类别确定的RACH数量。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2007235828A Autonomous distributed frequency assigning method 有权
标题翻译：自动分配频率分配方法
公开(公告)号：JP2007235828A
公开(公告)日：2007-09-13
申请号：JP2006057759
申请日：2006-03-03
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： SHIMIZU YOSHITAKA , NUNO FUSAO
IPC分类号： H04L12/28 , H04B7/26 , H04W72/04 , H04W84/18
摘要： PROBLEM TO BE SOLVED: To provide an autonomous distributed frequency assigning method for enabling location success rate to a frequency location to be improved, without generating hidden terminal problems, and without converging into a frequency which is a local solution, even if network size is increased.
SOLUTION: A frequency of an objected link is set by a frequency setting algorithm (step S101). Whether a set frequency is changed over a predetermined period is detected (step S108), when the set frequency becomes a link to the hidden terminal problem (step S102). When the set frequency is not changed, exceeding the predetermined period, convergence to the local solution is regarded as being established, then a process for changing the frequency location is performed (step S109). As a result, the location success rate to the frequency location which will not cause the hidden terminal problem to be generated can be improved, since convergence to the frequency which is to be a local solution is not established, even if the network size is increased.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种自主的分布式频率分配方法，用于使得能够提高频率位置的位置成功率，而不产生隐藏的终端问题，并且不会聚合到作为本地解决方案的频率，即使网络尺寸增加。解决方案：通过频率设置算法设置被反对链路的频率（步骤S101）。检测设定频率是否在预定时段内变化（步骤S108），当设定频率成为隐藏终端问题的连接时（步骤S102）。当设定频率没有改变时，超过预定时间段，就会认为建立了对局部解的收敛，然后执行用于改变频率位置的处理（步骤S109）。结果，即使网络规模增大，也可以提高不会导致产生隐藏终端问题的频率位置的位置成功率，因为收敛到作为本地解决方案的频率不成立。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2007043601A Terminal calling apparatus, terminal calling method, terminal calling system, terminal call detecting method, terminal to be called, call detecting method, program and recording medium 审中-公开
标题翻译：终端呼叫装置，终端呼叫方法，终端呼叫系统，终端呼叫检测方法，终端呼叫，呼叫检测方法，程序和记录介质
公开(公告)号：JP2007043601A
公开(公告)日：2007-02-15
申请号：JP2005227625
申请日：2005-08-05
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： NUNO FUSAO , SHIMIZU YOSHITAKA
IPC分类号： H03M7/46 , H04W28/06 , H04W68/00
摘要： PROBLEM TO BE SOLVED: To provide a terminal calling apparatus improving processing efficiency of a calling side device or a terminal to be called, or sureness of calling even in the situation where a number of terminals are simultaneously called even if a quantity of communication establishable terminals are present, but capacity of a communication line is small. SOLUTION: The total number of terminals capable of establishing communications with a present terminal and numbers of the terminals in said total number are stored and a bit stream is generated, the bit stream indicating the total number of terminals and raising a bit at a position corresponding to said number of a terminal to be called or a terminal not to be called among the communication establishable terminals in the relevant bit stream. Either one of the bit stream or an encoded bit stream is transmitted to terminals as call information, thereby calling a terminal corresponding to the position, where the bit is raised, in the bit stream. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：为了提供一种提高呼叫侧设备或被叫终端的处理效率的终端呼叫装置，或即使在多个终端被同时呼叫的情况下即使呼叫的数量通信建立终端存在，但通信线路容量小。解决方案：存储能够与当前终端建立通信的终端的总数和所述总数中的终端的数量，并生成比特流，该比特流指示终端总数并提高一位在相关比特流中的通信可建立终端之间对应于要被呼叫的终端的号码或不被呼叫的终端的位置。比特流或编码比特流中的任何一个作为呼叫信息被发送到终端，从而在比特流中调用与比特被升高的位置对应的终端。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2006246226A Autonomous distributed frequency allocation method 有权
标题翻译：自动分配频率分配方法
公开(公告)号：JP2006246226A
公开(公告)日：2006-09-14
申请号：JP2005061245
申请日：2005-03-04
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： SHIMIZU YOSHITAKA , NUNO FUSAO , NAKAYAMA MASAYOSHI , UMEHIRA MASAHIRO
IPC分类号： H04B7/15 , H04B7/26 , H04W72/04 , H04W84/18
摘要： PROBLEM TO BE SOLVED: To provide an autonomous distributed frequency allocation method which regulates the restriction condition of frequency allocation for evading a hidden terminal problem, and reduces the number of links not satisfying the restriction condition of the frequency allocation both, in a network capable of allocation by a usable frequency and in a network incapable of allocation. SOLUTION: As the set frequency of an object link, whether or not a frequency satisfying the restriction condition of the frequency allocation exists in the usable frequencies is judged (step S205). In the case that the frequency satisfying the restriction condition exists in the usable frequencies, the frequency satisfying the restriction condition is set to the object link (step S208). In the case that the frequency satisfying the restriction condition does not exist in the entire usable frequencies, the number of the links not satisfying the restriction condition is calculated for each usable frequency (step S206), and the frequency with the minimum number of NG links is set to the object link (step S204). COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种调节用于逃避隐藏终端问题的频率分配的限制条件的自主分散频率分配方法，并且减少不满足频率分配的限制条件的链路的数量，能够通过可用频率进行分配的网络和不能分配的网络。解决方案：作为对象链路的设定频率，判断在可用频率中存在满足频率分配的限制条件的频率（步骤S205）。在满足限制条件的频率存在于可用频率的情况下，满足限制条件的频率被设定为对象链接（步骤S208）。在满足限制条件的频率在整个可用频率中不存在的情况下，针对每个可用频率计算不满足限制条件的链路的数量（步骤S206），并且具有最小数量的NG链路的频率被设置为对象链接（步骤S204）。版权所有（C）2006，JPO＆NCIPI

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