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1. 发明授权

US09450668B2 Packet relay system and wireless node 有权
标题翻译：分组中继系统和无线节点
公开(公告)号：US09450668B2
公开(公告)日：2016-09-20
申请号：US12591575
申请日：2009-11-24
申请人： Masanori Nozaki , Kentarou Yanagihara , Yuki Kubo
发明人： Masanori Nozaki , Kentarou Yanagihara , Yuki Kubo
IPC分类号： H04L12/707 , H04L12/721 , H04B7/26 , H04B7/155
CPC分类号： H04B7/2606 , H04B7/155
摘要： A packet relay system in which each node calculates a link cost of each adjacent node based on an arrival rate of a packet from each adjacent node, acquires an accumulated value of a link cost calculated by each node in a range of nodes from a sink node for each adjacent node, calculates, for each adjacent node, a path cost of the one adjacent node by adding the link cost calculated to the accumulated value, and relays a data packet to one adjacent node selected from among nodes adjacent to the node based on a path cost of each adjacent node. This enables establishment of an upstream path to a sink node without increasing the amount of communication in a network.
摘要翻译：一种分组中继系统，其中每个节点基于来自每个相邻节点的分组的到达速率来计算每个相邻节点的链路成本，获取从汇聚节点的节点范围中的每个节点计算的链路成本的累积值对于每个相邻节点，对于每个相邻节点，通过将计算的链路成本加到累加值来计算一个相邻节点的路径开销，并且将数据分组中继到从与节点相邻的节点中选择的一个相邻节点每个相邻节点的路径开销。这使得能够建立到汇聚节点的上行路径，而不增加网络中的通信量。

2. 发明授权

US09288837B2 Wireless device and wireless system 有权
标题翻译：无线设备和无线系统
公开(公告)号：US09288837B2
公开(公告)日：2016-03-15
申请号：US12801004
申请日：2010-05-17
申请人： Kentarou Yanagihara
发明人： Kentarou Yanagihara
IPC分类号： H04B3/36 , H04B7/14 , H04B7/15 , H04B7/185 , H04B5/00 , H04W24/00 , H04Q5/22 , G08B1/08 , G01R31/08 , G06F11/00 , G08C15/00 , H04J1/16 , H04J3/14 , H04L1/00 , H04L12/26 , H04W4/00 , H04L12/66 , H04W84/20 , H04W52/02
CPC分类号： H04W84/20 , H04W52/0225
摘要： A wireless device operates in a first mode, in which it relays communications between neighboring wireless devices, and a second mode, in which it does not relay communications. The wireless device periodically transmits information indicating its operating mode to the neighboring wireless devices. In the first mode, when not transmitting mode information or communication data, the wireless device stands by with its receiver powered, ready to receive mode information or communication data from neighboring wireless devices. In the second mode, the wireless device is normally in a sleep state and wakes up only at scheduled intervals to transmit and receive mode information and communication data. The wireless device stores the received mode information and selects its operating mode according to the stored mode information, selecting the second mode when this does not prevent the prevent communication with or among the neighboring wireless devices.
摘要翻译：无线设备在第一模式中工作，其中它中继相邻无线设备之间的通信，而第二模式不中继通信。无线设备周期性地向相邻无线设备发送指示其操作模式的信息。在第一模式中，当不传输模式信息或通信数据时，无线设备等待其接收机供电，准备接收来自相邻无线设备的模式信息或通信数据。在第二模式中，无线设备通常处于睡眠状态，并且仅以预定间隔醒来以发送和接收模式信息和通信数据。无线设备存储接收到的模式信息，并根据存储的模式信息选择其操作模式，当这不防止与相邻无线设备之间或之间的通信时，选择第二模式。

3. 发明授权

US09131521B2 Communications apparatus transmitting data on channels adaptively switchable 有权
标题翻译：通信装置发送可自适应切换的信道上的数据
公开(公告)号：US09131521B2
公开(公告)日：2015-09-08
申请号：US13484313
申请日：2012-05-31
申请人： Yuki Kubo , Masanori Nozaki , Kentarou Yanagihara , Hiroshi Nishimura
发明人： Yuki Kubo , Masanori Nozaki , Kentarou Yanagihara , Hiroshi Nishimura
IPC分类号： H04J3/16 , H04W72/12 , H04W84/18 , H04W28/06 , H04L1/18 , H04W72/04
CPC分类号： H04W72/1257 , H04L1/1867 , H04W28/06 , H04W72/0446 , H04W84/18
摘要： In a communications apparatus, a communication controller transmits and receives signals on any of plural channels. A channel switching controller is responsive to channel switching information selectively defining plural reception-waiting periods using the channels to alter a channel to be used by the communication controller. A neighboring node channel controller exchanges channel switching information with other nodes to manage the channel switching information received from the other nodes. When transmitting transmission signals, a transmission controller refers to the channel switching information of the other nodes, and controls repetitive transmission of the transmission signals on the channel thus searched for.
摘要翻译：在通信装置中，通信控制器在多个信道中的任一个发送和接收信号。信道切换控制器响应于使用信道选择性地定义多个接收等待周期的信道切换信息，以改变由通信控制器使用的信道。相邻节点信道控制器与其他节点交换信道交换信息，以管理从其他节点接收的信道交换信息。当发送发送信号时，发送控制器参考其他节点的信道切换信息，并且控制所搜索的信道上的发送信号的重复发送。

4. 发明授权

US08483117B2 Wireless communication apparatus 有权
标题翻译：无线通信装置
公开(公告)号：US08483117B2
公开(公告)日：2013-07-09
申请号：US12801419
申请日：2010-06-08
申请人： Yuki Kubo , Kentarou Yanagihara , Hiroshi Nishimura , Masanori Nozaki
发明人： Yuki Kubo , Kentarou Yanagihara , Hiroshi Nishimura , Masanori Nozaki
IPC分类号： H04J3/08
CPC分类号： H04W40/30 , H04L45/34
摘要： A packet is transmitted from a source node to a destination node via a relay path in a multi-hop network. The packet is transmitted by cache routing or source routing, depending on the presence or absence of information identifying the destination node in a history table maintained at the source node. In source routing, relay path information is included in the packet. In cache routing, relay nodes obtain routing information from entries in their own cache routing tables. Each entry indicates only the destination node and the next relay node, and each cache routing table has a limited size. When a series of packets are transmitted to the second node, cache routing can be used for all but the first packet, thereby reducing packet overhead.
摘要翻译：经由多跳网络中的中继路径，从源节点向目的地节点发送分组。该数据包是通过高速缓存路由或源路由发送的，具体取决于在源节点上维护的历史表中是否存在标识目标节点的信息。在源路由中，包中包含中继路径信息。在缓存路由中，中继节点从自己的缓存路由表中的条目获取路由信息。每个条目仅指示目的地节点和下一个中继节点，并且每个高速缓存路由表具有有限的大小。当一系列数据包被发送到第二个节点时，除了第一个数据包之外，高速缓存路由可以被用于所有数据包，从而减少数据包开销。

5. 发明授权

US08432928B2 Handover control between base stations in a multi-hop mobile communication network 有权
标题翻译：在多跳移动通信网络中的基站之间的切换控制
公开(公告)号：US08432928B2
公开(公告)日：2013-04-30
申请号：US11798897
申请日：2007-05-17
申请人： Kentarou Yanagihara
发明人： Kentarou Yanagihara
IPC分类号： H04W36/00
CPC分类号： H04W36/30 , H04W36/36
摘要： A handover control method carried out at a mobile station for switching a destination base station in a multi-hop network includes a reception step of receiving a communication signal and information of neighboring base stations used to identify a base station existing in the surrounding area of the base station transmitted from the base station, and a control step of controlling handover on the basis of the signal and information thus received. The control step includes a present destination decision step of deciding the base station currently connected, a switching decision step of using the information of neighboring base stations to decide whether or not the base station to be connected is to be switched over, and a switching step of switching over the base station to be connected on the basis of the decision result of the switching decision step. Thus unnecessary handover operations can be reduced.
摘要翻译：在移动站中执行的用于在多跳网络中切换目的地基站的切换控制方法包括：接收步骤，接收通信信号和相邻基站的信息，所述相邻基站用于识别存在于所述多跳网络的周边区域中的基站从基站发送的基站，以及基于由此接收到的信号和信息来控制切换的控制步骤。控制步骤包括：当前目的地决定步骤，确定当前连接的基站;切换判定步骤，使用相邻基站的信息来判定要连接的基站是否被切换;切换步骤基于切换判定步骤的判定结果切换要连接的基站。因此，可以减少不必要的切换操作。

6. 发明申请

US20110235504A1 Wireless communication system and nodes 有权
标题翻译：无线通信系统和节点
公开(公告)号：US20110235504A1
公开(公告)日：2011-09-29
申请号：US12926886
申请日：2010-12-15
申请人： Masanori Nozaki , Kentarou Yanagihara , Hiroshi Nishimura , Yuki Kubo
发明人： Masanori Nozaki , Kentarou Yanagihara , Hiroshi Nishimura , Yuki Kubo
IPC分类号： H04W24/00 , H04W40/00
CPC分类号： H04W40/30 , H04L45/04 , H04W28/06 , H04W88/04
摘要： A wireless communication system includes a first node, multiple second nodes, and multiple third nodes that communicate with the first node through the second nodes. The second and third nodes transmit control information to their neighboring third nodes, which calculate link costs from the reception status of the control information. The control information transmitted by each node includes a path cost indicating the cost of a path between the transmitting node and the first node. From the path costs in received control information, each third node selects a second node through which to communicate with the first node, and selects a parent node as the destination of the first hop on the path through the selected second node to the first node. Routing is thereby accomplished autonomously without having the second nodes flood the system with routing requests.
摘要翻译：无线通信系统包括通过第二节点与第一节点通信的第一节点，多个第二节点和多个第三节点。第二节点和第三节点将控制信息发送到其相邻的第三节点，其根据控制信息的接收状态计算链路成本。由每个节点发送的控制信息包括指示发送节点和第一节点之间的路径的开销的路径开销。从所接收的控制信息的路径成本中，每个第三节点选择通过其与第一节点通信的第二节点，并且通过所选择的第二节点选择父节点作为通过所选择的第二节点到第一节点的路径上的第一跳的目的地。从而自动完成路由，而不需要第二个节点将路由请求泛滥。

7. 发明授权

US08023961B2 Method and a system for location estimation using location estimated 有权
标题翻译：使用位置估计的方法和位置估计系统
公开(公告)号：US08023961B2
公开(公告)日：2011-09-20
申请号：US11704948
申请日：2007-02-12
申请人： Kentarou Yanagihara
发明人： Kentarou Yanagihara
IPC分类号： H04W24/00
CPC分类号： H04W64/00
摘要： In a system for location estimation, information necessary for location estimation is acquired from a wireless signal. The first estimated location of each of target terminals is found out on the basis of the acquired information necessary for location estimation, and the locations of reference terminals. The second estimated location of each target terminal is found out on the basis of the information necessary for location estimation, the first estimated locations of the target terminals other than that target terminal of which the location estimation is being carried out, and on the locations of the reference terminals. Thus, the system for location estimation avoids the problem associated with an increased sphere of location estimation and with an increased communication traffic attendant on an increased number of target terminals, and achieves location estimation of high accuracy.
摘要翻译：在用于位置估计的系统中，从无线信号获取位置估计所需的信息。基于获取的位置估计信息和参考终端的位置，找出每个目标终端的第一估计位置。基于位置估计所需的信息，除了正在进行位置估计的目标终端之外的目标终端的第一估计位置以及位置估计的位置，找出每个目标终端的第二估计位置参考端子。因此，用于位置估计的系统避免了与增加的位置估计的范围相关联的问题，并且随着目标终端数量的增加而增加了通信业务，并且实现了高精度的位置估计。

8. 发明申请

US20120082065A1 WIRELESS NETWORK AND TERMINAL, AND NETWORK CONFIGURATION METHOD AND DEVICE 有权
标题翻译：无线网络和终端，以及网络配置方法和设备
公开(公告)号：US20120082065A1
公开(公告)日：2012-04-05
申请号：US13187029
申请日：2011-07-20
申请人： Kentarou YANAGIHARA , Hiroshi Nishimura , Yuki Kubo , Masanori Nozaki
发明人： Kentarou YANAGIHARA , Hiroshi Nishimura , Yuki Kubo , Masanori Nozaki
IPC分类号： H04W84/00
CPC分类号： H04W84/18 , H04W88/04 , Y02D70/00
摘要： A tree topology in a multi-hop wireless network is configured by having each node other than the root node select a parent node within direct communication range, thereby becoming a child node of the selected parent node. Neighboring nodes provide selection values such as routing costs and local structural information indicating the existing topology in their vicinities, including parent-child relationships. The selection of the parent node is based on the received selection values, but the local structural information is used to bias the selection in favor of neighboring nodes with at least one other child node. This selection strategy reduces the number of parent nodes in the network and enables more nodes to operate as end nodes, which can then conserve power by carrying out sleep control.
摘要翻译：通过使除根节点之外的每个节点在直接通信范围内选择父节点，从而成为所选父节点的子节点，来配置多跳无线网络中的树形拓扑。相邻节点提供选择值，例如路由成本和指示其附近的现有拓扑的局部结构信息，包括父子关系。父节点的选择基于接收到的选择值，但是本地结构信息用于利用至少一个其他子节点偏好选择以利于相邻节点。该选择策略减少网络中的父节点数量，并使更多的节点作为终端节点运行，从而可以通过执行睡眠控制来节省电力。

9. 发明申请

US20110051652A1 Wireless communication apparatus 有权
标题翻译：无线通信装置
公开(公告)号：US20110051652A1
公开(公告)日：2011-03-03
申请号：US12801419
申请日：2010-06-08
申请人： Yuki Kubo , Kentarou Yanagihara , Hiroshi Nishimura , Masanori Nozaki
发明人： Yuki Kubo , Kentarou Yanagihara , Hiroshi Nishimura , Masanori Nozaki
IPC分类号： H04W40/00 , H04L12/56
CPC分类号： H04W40/30 , H04L45/34
摘要： A packet is transmitted from a source node to a destination node via a relay path in a multi-hop network. The packet is transmitted by cache routing or source routing, depending on the presence or absence of information identifying the destination node in a history table maintained at the source node. In source routing, relay path information is included in the packet. In cache routing, relay nodes obtain routing information from entries in their own cache routing tables. Each entry indicates only the destination node and the next relay node, and each cache routing table has a limited size. When a series of packets are transmitted to the second node, cache routing can be used for all but the first packet, thereby reducing packet overhead.
摘要翻译：经由多跳网络中的中继路径，从源节点向目的地节点发送分组。该数据包是通过高速缓存路由或源路由发送的，这取决于在源节点上维护的历史表中是否存在识别目标节点的信息。在源路由中，包中包含中继路径信息。在缓存路由中，中继节点从自己的缓存路由表中的条目获取路由信息。每个条目仅指示目的地节点和下一个中继节点，并且每个高速缓存路由表具有有限的大小。当一系列数据包被发送到第二个节点时，除了第一个数据包之外，高速缓存路由可以被用于所有数据包，从而减少数据包开销。

10. 发明授权

US07791538B2 Location estimation method and system, and wireless device 有权
标题翻译：位置估算方法和系统以及无线设备
公开(公告)号：US07791538B2
公开(公告)日：2010-09-07
申请号：US12219039
申请日：2008-07-15
申请人： Kentarou Yanagihara
发明人： Kentarou Yanagihara
IPC分类号： G01S3/02
CPC分类号： G01S5/021 , G01S5/14
摘要： A location estimation system in which the location of a target device is estimated from the known locations of a set of anchor devices and information obtained from wireless signals transmitted between the target device and the anchor devices. The estimation process makes use of parameters indicating propagation characteristics of the wireless signals. When the location of the target device has been estimated, new values are estimated for the parameters, based on the estimated location of the target device. The new parameter values are then used to estimate the location of the target device again. The location estimation and parameter estimation process is iterated until a predetermined condition is satisfied.
摘要翻译：一种位置估计系统，其中从一组锚定装置的已知位置估计目标装置的位置以及从在目标装置和锚定装置之间传送的无线信号获得的信息。估计过程利用指示无线信号的传播特性的参数。当估计目标设备的位置时，基于目标设备的估计位置来估计参数的新值。然后使用新的参数值再次估计目标设备的位置。重复定位估计和参数估计处理，直到满足预定条件。

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