公开(公告)号：EP2587705A3

公开(公告)日：2015-11-04

申请号：EP12185609.0

申请日：2012-09-24

申请人： FUJITSU LIMITED

发明人： Fujita, Hiroshi

IPC分类号： H04L1/18 ,  H04W84/18 ,  H04W28/18 ,  H04W72/12 ,  H04W88/02 ,  H04L1/00

CPC分类号： H04L1/1854 ,  H04L1/1848 ,  H04L1/188 ,  H04L1/1887 ,  H04L2001/0092 ,  H04W28/18 ,  H04W72/12 ,  H04W88/02

摘要： A wireless station includes a receiving unit configured to receive a packet, a setting unit configured to set a retransmission start time of a packet transmitted to another wireless station based on the received packet, and a transmitting unit configured to control transmission of a packet that is the same as the transmitted packet in accordance with whether a response signal responsive to the transmitted packet is received before the set retransmission start time is reached.

公开(公告)号：EP2375656A1

公开(公告)日：2011-10-12

申请号：EP11156288.0

申请日：2011-02-28

申请人： Fujitsu Limited

发明人： Wen, Yun ,  Fujita, Hiroshi ,  Yoshida, Makoto

IPC分类号： H04L12/56 ,  H04W40/12

CPC分类号： H04L47/10 ,  H04L45/302 ,  H04L47/14 ,  H04L47/24

摘要： An optimum path storage unit (10) stores optimum paths on all wireless communication devices that can be destinations of data. A reception unit (20) receives relay data as a relay target. A QoS judgment unit (30) reads out an optimum path corresponding to a QoS requirement of relay data from the optimum path storage unit (10) and judges whether or not the QoS requirement of data is satisfied by the optimum path. The QoS judgment unit (30) outputs the relay data to a transmission unit (40) when it is judged such that the QoS requirement is satisfied. The transmission unit (40) transmits the relay data to the next node on the optimum path. When the QoS requirement of the relay data is not satisfied by the optimum path, a NACK information generation unit (50) generates NACK information that includes the fact that transmission of the relay data has been interrupted and transmits the NACK information to neighboring wireless communication devices.

摘要翻译： 最佳路径存储单元（10）在可以是数据目的地的所有无线通信设备上存储最佳路径。 接收单元（20）接收作为中继对象的中继数据。 QoS判断单元（30）从最优路径存储单元（10）读出与中继数据的QoS要求对应的最优路径，并判断数据的QoS要求是否满足最优路径。 当判断为满足QoS要求时，QoS判断单元（30）将中继数据输出到发送单元（40）。 发送单元（40）将中继数据发送到最佳路径上的下一个节点。 当不满足最佳路径的中继数据的QoS要求时，NACK信息生成单元（50）生成包含中继数据的发送已中断的事实的NACK信息，并将NACK信息发送给相邻的无线通信装置 。

公开(公告)号：EP3885915A1

公开(公告)日：2021-09-29

申请号：EP21153425.0

申请日：2021-01-26

申请人： FUJITSU LIMITED

发明人： Fujita, Hiroshi ,  Watanabe, Yukihiro

IPC分类号： G06F11/30 ,  G06F11/36 ,  G06N20/00

摘要： A failure cause identifying program that causes a computer to execute a process, the process includes extracting a first node related to a node indicating abnormality included in a plurality of nodes; identifying a first objective variable and a first explanatory variable of the first objective variable, the first objective variable being each of combinations of operation data of the first node and the first node; extracting, in a detection process performed by using the first explanatory variable, a second objective variable and a second explanatory variable of the second objective variable, the second objective variable being each of combinations of the operation data and the node indicating abnormality; determining a number of objective variables common to the second explanatory variable; and setting a priority order for locations of a cause of a failure, based on the number of objective variables.

公开(公告)号：EP2339880A1

公开(公告)日：2011-06-29

申请号：EP10196815.4

申请日：2010-12-23

申请人： FUJITSU LIMITED

发明人： Fujita, Hiroshi

IPC分类号： H04W40/12

CPC分类号： H04W40/12

摘要： A communicating device capable of transmitting packets to a destination device via any of a plurality of adjacent devices, has a first measuring unit for measuring a first quality of a link between the communicating device and the destination device for a first period of time, a second measuring unit for measuring a second quality of a link from the communicating device to the destination device for a second period of time shorter than the first period of time, a first selector for selecting an adjacent device from the plurality of adjacent devices based on the measured first quality when transmitting a new packet to the destination device, and a second selector for selecting an adjacent device from the plurality of adjacent devices based on the measured second quality upon failure of transmitting the new packet.

摘要翻译： 能够通过多个相邻设备中的任一个向目的地设备发送分组的通信设备具有第一测量单元，用于在第一时间段内测量通信设备和目的地设备之间的链路的第一质量，第二测量单元 测量单元，用于在短于第一时间段的第二时间段内测量从通信设备到目的地设备的链路的第二质量;第一选择器，用于基于测量的多个相邻设备从多个相邻设备中选择相邻设备 当向目的地设备发送新分组时，第一质量;以及第二选择器，用于在发送新分组失败时基于所测量的第二质量从多个相邻设备中选择相邻设备。

公开(公告)号：EP2587705A2

公开(公告)日：2013-05-01

申请号：EP12185609.0

申请日：2012-09-24

申请人： FUJITSU LIMITED

发明人： Fujita, Hiroshi

IPC分类号： H04L1/18

CPC分类号： H04L1/1854 ,  H04L1/1848 ,  H04L1/188 ,  H04L1/1887 ,  H04L2001/0092 ,  H04W28/18 ,  H04W72/12 ,  H04W88/02

摘要： A wireless station includes a receiving unit configured to receive a packet, a setting unit configured to set a retransmission start time of a packet transmitted to another wireless station based on the received packet, and a transmitting unit configured to control transmission of a packet that is the same as the transmitted packet in accordance with whether a response signal responsive to the transmitted packet is received before the set retransmission start time is reached.

摘要翻译： 无线站包括被配置为接收分组的接收单元，设置单元，被配置为基于接收到的分组来设置发送到另一无线站的分组的重发开始时间;以及发送单元，被配置为控制分组的发送， 根据在达到设定的重发开始时间之前是否接收到响应于所发送的分组的响应信号，与发送的分组相同。

公开(公告)号：EP2136587A2

公开(公告)日：2009-12-23

申请号：EP09171903.9

申请日：2007-07-31

申请人： FUJITSU LIMITED

发明人： Hart, Michael John Beems ,  Zhou, Yuefeng ,  Viorel, Dorin ,  Zhu, Chenxi ,  Nakamura, Michiharu ,  Watanabe, Masahiro ,  Fujita, Hiroshi ,  Yoshida, Makoto

IPC分类号： H04W28/16

CPC分类号： H04W28/16 ,  H04B7/15507 ,  H04B7/2606 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0048 ,  H04L25/0226 ,  H04L27/2655 ,  H04L27/2692 ,  H04W48/08 ,  H04W84/047

摘要： A transmission method for use in a multi-hop wireless communication system, the system comprising a source apparatus, a destination apparatus and one or more intermediate apparatuses, said source apparatus being operable to transmit information along a series of links forming a communication path extending from the source apparatus to the destination apparatus via the or each intermediate apparatus, and the or each intermediate apparatus being operable to receive information from a previous apparatus along the path and to transmit the received information to a subsequent apparatus along the path, the system having access to at least one predetermined transmission introduction sequence and also having access to a time-frequency format for use in assigning available transmission frequency bandwidth during a discrete transmission interval, said format defining a plurality of transmission windows within such an interval, each window occupying a different part of that interval and having a frequency bandwidth profile within said available transmission frequency bandwidth over its part of that interval, each said window being assignable for such a transmission interval to at least one of said apparatuses for use in transmission, the method comprising: when transmitting a message with a preamble in a particular transmission interval, transmitting the preamble in a first transmission window of that transmission interval; and transmitting the or one of the transmission introduction sequences in a second transmission window of that transmission interval other than the first transmission window preferably as control information for use by at least one said intermediate apparatus or the destination apparatus.

摘要翻译： 一种在多跳无线通信系统中使用的传输方法，所述系统包括源设备，目的地设备和一个或多个中间设备，所述源设备可操作以沿着形成通信路径的一系列链路传输信息，所述通信路径从 所述源设备经由所述或每个中间设备到所述目的地设备，并且所述或每个中间设备可操作以沿着所述路径接收来自先前设备的信息并且将接收到的信息发送到沿着所述路径的后续设备，所述系统具有接入 到至少一个预定的传输引入序列，并且还可以访问时间频率格式以用于在离散传输间隔期间分配可用传输频率带宽，所述格式在这样的间隔内定义了多个传输窗口，每个窗口占用不同的 部分的时间间隔，并有一个 在所述可用传输频率带宽内的所述可用传输频率带宽内的所述可用传输频率带宽内，每个所述窗口可针对这样的传输间隔分配给所述用于传输的至少一个所述设备，所述方法包括：当将前导码 特定传输间隔，在该传输间隔的第一传输窗口中传输前导码; 以及在除了第一发送窗之外的发送间隔的第二发送窗口中发送发送导入序列或一个发送导入序列，优选地作为由至少一个所述中间装置或目的地装置使用的控制信息。

公开(公告)号：EP3913557A1

公开(公告)日：2021-11-24

申请号：EP21164860.5

申请日：2021-03-25

申请人： FUJITSU LIMITED

发明人： Fujita, Hiroshi

IPC分类号： G06Q10/06 ,  G06Q10/00

摘要： A determination method executed by a computer, the method includes acquiring service usage and resource usage related to a predetermined service; acquiring a quality value of the predetermined service by using the resource usage and the service usage; identifying the resource usage in future by using a first model and the resource usage, the first model outputting a usage amount of a resource at any time point in future; identifying the resource usage in future by using a second model and the service usage, the second model outputting a use amount of a service at any time point in future; and determining whether to output an alarm related to the predetermined service based on the quality value, the resource usage in future, and the resource usage in future.

公开(公告)号：EP2144393A3

公开(公告)日：2014-04-30

申请号：EP09158840.0

申请日：2009-04-27

申请人： Fujitsu Limited

发明人： Fujita, Hiroshi

IPC分类号： H04L5/00

CPC分类号： H04L5/0037 ,  H04L5/0007 ,  H04L5/0058 ,  H04L25/0222

摘要： A base-station apparatus (100) measures frequency variation and time variation of a channel, based on a signal received from a mobile machine (10). Then, based on the measured frequency variation and time variation, the base-station apparatus allocates (100) either a sub-channel consisting of contiguous subcarriers or consisting of non-contiguous subcarriers sub-channel to the mobile machine (10). With this, the base-station apparatus (100) allocates a sub-channel according to the wireless propagation environment where the mobile machine (10) is located.

公开(公告)号：EP2339880B1

公开(公告)日：2012-08-22

申请号：EP10196815.4

申请日：2010-12-23

申请人： FUJITSU LIMITED

发明人： Fujita, Hiroshi

IPC分类号： H04W40/12

CPC分类号： H04W40/12

公开(公告)号：EP2367390A1

公开(公告)日：2011-09-21

申请号：EP11156709.5

申请日：2011-03-03

申请人： Fujitsu Limited

发明人： Wen, Yun ,  Fujita, Hiroshi ,  Yoshida, Makoto

IPC分类号： H04W74/00

CPC分类号： H04W74/02 ,  H04W74/006

摘要： A radio communication system includes a gateway apparatus and a plurality of radio stations performing radio communication. The gateway apparatus includes, a generation unit that generates allocation information on one or more individual channels each allocated individually to one of a plurality of radio stations; and a transmission unit that transmits the generated allocation information, and the plurality of radio stations each of which comprising, a receiving unit that receives the allocation information; and a data transmission unit that performs data transmission through the one or more individual channels when information indicating an own station is included in the received allocation information, and performs data transmission by random access through a channel other than the one or more individual channels in a radio frame when information indicating the own station is not included in the received allocation information..

摘要翻译： 无线电通信系统包括网关装置和执行无线电通信的多个无线电台。 网关装置包括：生成单元，其生成分别分别分配给多个无线电台之一的一个以上的各个信道的分配信息; 以及发送单元，其发送所生成的分配信息，所述多个无线电台各自包括：接收单元，其接收分配信息; 以及数据传输单元，当在所接收的分配信息中包括指示本站的信息时，通过一个或多个单独信道进行数据传输，并且通过除了一个或多个单独信道之外的信道的随机接入进行数据传输 当指示本台站的信息不包括在接收到的分配信息中时，无线帧。