公开(公告)号：US08498282B2

公开(公告)日：2013-07-30

申请号：US12522272

申请日：2008-01-18

申请人： Hiroshi Doi ,  Taisuke Matsumoto ,  Kazuaki Takahashi ,  Suguru Fujita

发明人： Hiroshi Doi ,  Taisuke Matsumoto ,  Kazuaki Takahashi ,  Suguru Fujita

IPC分类号： H04J3/00 ,  H04B7/00

CPC分类号： H04W74/04 ,  H04B7/2656 ,  H04J3/0605 ,  H04W16/28 ,  H04W72/046 ,  H04W84/18

摘要： A radio communication method is capable of easily realizing multi-access in an ad-hoc network using a directive radio wave. In the ad-hoc network using the directive radio wave of the method, two PNC functioning as master devices are arranged opposed to each other so that their directivities face to each other. A super frame is time-divided into two sub super frames so that one of the sub super frames is controlled by one of the PNC and the other sub super frame is controlled by the other PNC.

摘要翻译： 无线电通信方法能够使用指令性无线电波容易地实现在ad-hoc网络中的多址接入。 在使用该方法的定向无线电波的自组织网络中，用作主设备的两个PNC彼此相对布置，使得它们的方向性彼此相对。 超帧被分时分为两个子超帧，使得一个子超帧由一个PNC控制，另一个超超帧由另一个PNC控制。

公开(公告)号：US08369293B2

公开(公告)日：2013-02-05

申请号：US11909869

申请日：2006-03-27

申请人： Masayuki Kumazawa ,  Taisuke Matsumoto

发明人： Masayuki Kumazawa ,  Taisuke Matsumoto

IPC分类号： H04W4/00

CPC分类号： H04L69/16 ,  H04L45/00 ,  H04L2212/00 ,  H04W8/08 ,  H04W40/20 ,  H04W80/04 ,  H04W84/005

摘要： In a mobile network system composed of plural mobile networks and a home agent, the home agent inquires mobile routers in a mobile network whether or not a terminal is connected, if detecting the absence of the terminal, when data addressed to the terminal arrives at a home network of the terminal in the mobile network. Responding to this inquiry, the mobile routers search whether or not the terminal is connected to the own mobile networks. If the terminal is connected, the mobile routers inform the home agent of the presence of the terminal. When receiving this notice, the home agent transfers data addressed to this terminal to a mobile router as a notice source. This process, even if a terminal moves to a mobile network having a same network prefix as that of the home network, allows transferring a packet accurately to the terminal.

摘要翻译： 在由多个移动网络和归属代理组成的移动网络系统中，如果检测到终端不存在，则归属代理在移动网络中查询终端是否连接的移动路由器，当寻址到终端的数据到达 终端在家庭网络中的移动网络。 响应于该查询，移动路由器搜索终端是否连接到自己的移动网络。 如果终端连接，则移动路由器通知归属代理终端的存在。 当接收到本通知时，归属代理将作为通知源的发送到该终端的数据传送到移动路由器。 该过程即使终端移动到具有与家庭网络相同的网络前缀的移动网络，也允许将分组准确地传送到终端。

公开(公告)号：US08059636B2

公开(公告)日：2011-11-15

申请号：US12472854

申请日：2009-05-27

申请人： Hiroshi Doi ,  Masahiro Mimura ,  Taisuke Matsumoto

发明人： Hiroshi Doi ,  Masahiro Mimura ,  Taisuke Matsumoto

IPC分类号： H04L12/50

CPC分类号： H04W48/12 ,  H04W28/06 ,  Y02D70/142

摘要： A beacon slot position control section of a radio communication apparatus constituting a radio network system which detects whether empty beacon slots are present in a beacon period. When an empty beacon slot is present before the period in which the radio communication apparatus transmits a beacon, a movable counter starts counting a specified number of super frames. When the count is completed, the radio communication apparatus transmits a beacon of the radio communication apparatus at the earlier empty beacon slot. Consequently, since the empty beacon slots are eliminated and the beacon period is compacted, even if the number of radio communication apparatuses joining the radio network system fluctuates dynamically, the radio communication apparatus can perform radio communication with high efficiency and less waste of consumed electricity.

公开(公告)号：US20110069697A1

公开(公告)日：2011-03-24

申请号：US12993406

申请日：2009-05-26

申请人： Hong Cheng Michael Sim ,  Taisuke Matsumoto

发明人： Hong Cheng Michael Sim ,  Taisuke Matsumoto

IPC分类号： H04J3/06 ,  H04W72/04

CPC分类号： H04W16/14 ,  H04W84/18 ,  H04W92/02

摘要： In radio communication, especially in a centralized network, a commonly faced problem is the issue of the coexistence between a plurality of networks and different networks use different network timing parameters with no synchronization to one another. Thus, a device of one network usually has a difficulty in communication with a device of another network whether or not both are in a radio communication range. This results in causing unwanted mutual interference because when two or more networks operate in the same operation space, a device belonging to a certain network has a difficulty in letting a device belonging to another network know about the existence of the device belonging to the certain network. A means for enabling the first device to communicate with the second device is presented and the operation in the current channel is stopped and the current channel in operation is opened with respect to the second device and the other devices in the network of the second device by the established communication means.

摘要翻译： 在无线电通信中，特别是在集中式网络中，通常面临的问题是多个网络和不同网络之间共存的问题使用不同的网络定时参数，而不会彼此同步。 因此，无论两者是否处于无线电通信范围，一个网络的设备通常难以与另一网络的设备进行通信。 这导致不想要的相互干扰，因为当两个或多个网络在相同的操作空间中操作时，属于某个网络的设备难以让属于另一个网络的设备知道属于某个网络的设备的存在 。 呈现用于使第一设备与第二设备通信的装置，并且当前信道中的操作被停止，并且操作中的当前信道相对于第二设备和第二设备的网络中的其他设备通过 既定的沟通手段。

公开(公告)号：US20100278124A1

公开(公告)日：2010-11-04

申请号：US12524456

申请日：2008-01-23

申请人： Lei Huang ,  Hong Cheng Michael Sim ,  Zhan Yu ,  Taisuke Matsumoto

发明人： Lei Huang ,  Hong Cheng Michael Sim ,  Zhan Yu ,  Taisuke Matsumoto

IPC分类号： H04W40/00 ,  H04W72/12

CPC分类号： H04W74/0833 ,  H04W8/005 ,  H04W40/246 ,  H04W72/042 ,  H04W72/048 ,  H04W74/006 ,  H04W84/18

摘要： An adaptive beacon coordination method in a communication network using signal formats mutually incompatible. A coordination device broadcasts a first beacon in a first signal format and a second beacon in a second signal format in a superframe. The first and second beacons are used to send medium access information to a client device having the first signal format and a client device having the second signal format, respectively. When there are three or more signal formats in a network, the coordination device can broadcast three or more beacons. The number of beacons can be adapted to various superframes according to the functions of all the client devices in the network. If all the client devices support a signal format, the coordination device broadcasts only a single beacon in the signal format. After a predetermined number of superframes, the coordination device again starts to broadcast beacons so that new client devices having different respective signal formats can join the network.

摘要翻译： 使用相互不兼容的信号格式的通信网络中的自适应信标协调方法。 协调装置以超帧中的第一信号格式的第一信标和第二信号格式的第二信标广播。 第一和第二信标用于分别向具有第一信号格式的客户端设备和具有第二信号格式的客户端设备发送媒体访问信息。 当网络中有三种或更多种信号格式时，协调设备可以广播三个或更多个信标。 根据网络中所有客户端设备的功能，信标数可以适应各种超帧。 如果所有客户端设备都支持信号格式，则协调设备仅以信号格式广播单个信标。 在预定数量的超帧之后，协调设备再次开始广播信标，使得具有不同相应信号格式的新客户端设备可以加入网络。

公开(公告)号：US07796637B2

公开(公告)日：2010-09-14

申请号：US10577628

申请日：2005-06-15

申请人： Hiroshi Doi ,  Masahiro Mimura ,  Taisuke Matsumoto

发明人： Hiroshi Doi ,  Masahiro Mimura ,  Taisuke Matsumoto

IPC分类号： H04L12/413 ,  H04L12/42 ,  H04L12/43

CPC分类号： H04W16/14 ,  H04B1/719

摘要： A radio communication device includes a beacon reception unit extracting a frame from a received beacon and a frame judgment unit judging whether the extracted frame is one requiring data transmission/reception or one giving notice of a collision with a beacon of another network, a frame constructing unit used when the frame judgment unit has judged that the frame is a collision notification, generating a frame for relaying the collision notification and a movement notification to a new beacon transmission period, and a beacon transmission instruction unit instructing transmission of the frame at the beacon transmission timing. Accordingly, since these notifications can be relayed, all radio communication devices of the same network can move to a new beacon transmission period while avoiding a collision with a beacon from a radio communication device of another network.

摘要翻译： 无线电通信装置包括信标接收单元，从接收的信标中提取帧;以及帧判断单元，判断所提取的帧是否是需要数据发送/接收的一个，或者提供与另一个网络的信标的冲突的通知;帧构造 当帧判断单元已经判断出帧是冲突通知时使用的单元，生成用于中继冲突通知的帧和向新的信标发送周期的移动通知，以及指示在信标处发送帧的信标发送指示单元 传输时机。 因此，由于可以中继这些通知，所以同一网络的所有无线通信装置能够移动到新的信标发送期间，同时避免与来自另一网络的无线通信装置的信标的冲突。

公开(公告)号：US20100002659A1

公开(公告)日：2010-01-07

申请号：US12096327

申请日：2006-12-07

申请人： Hiroshi Doi ,  Masahiro Mimura ,  Taisuke Matsumoto

发明人： Hiroshi Doi ,  Masahiro Mimura ,  Taisuke Matsumoto

IPC分类号： H04W4/00

CPC分类号： H04B7/2696 ,  H04W52/0229 ,  H04W56/002 ,  H04W84/18 ,  Y02D70/144 ,  Y02D70/22 ,  Y02D70/449

摘要： A wireless communication method wherein the power consumption can be reduced as compared with the conventional one and a wireless communication apparatus can synchronize its super-frame with the super-frame of another wireless communication apparatus in an ad hoc network. According to this method, in the ad hoc network where a plurality of wireless communication apparatuses use broadband signals to data-communicate with each other, a wireless communication apparatus transmits an end tone (201) for identifying the end of a super-frame (221), and when another wireless communication apparatus receives the end tone (202), it synchronizes the end of its super-frame (221) with the end of the foregoing super-frame (221). In this way, the super-frames (221) can be synchronized even without any beacons.

摘要翻译： 一种无线通信方法，其中与现有技术相比能够降低功耗，并且无线通信装置可以使其超帧与自组织网络中的另一无线通信装置的超帧同步。 根据该方法，在多个无线通信装置使用宽带信号进行数据通信的自组织网络中，无线通信装置发送用于识别超帧结束的终端音（201） ），并且当另一无线通信装置接收到终端音（202）时，它将其超帧（221）的结束与前述超帧（221）的结尾同步。 以这种方式，即使没有任何信标，超帧（221）也可以被同步。

公开(公告)号：US20090323667A1

公开(公告)日：2009-12-31

申请号：US12376237

申请日：2006-08-02

申请人： Hiroshi Doi ,  Taisuke Matsumoto

发明人： Hiroshi Doi ,  Taisuke Matsumoto

IPC分类号： H04J3/24

CPC分类号： H04W8/26 ,  H04W8/005 ,  H04W84/18

摘要： There is disclosed a wireless communication apparatus that does not interrupt synchronous communication but can continuously perform the synchronous communication even when an address duplication occurs between the local wireless communication apparatus and a nearby wireless communication apparatus. A plurality of wireless communication apparatuses constitutes an ad hoc network system where they transmit beacons to each other. In the wireless communication apparatus, an address processing part (145) generates a first address, which includes a beacon period slot number corresponding to the position-on-beacon-period of a beacon generated by the local wireless communication apparatus, and a second address assigned at random. A beacon processing part (140) determines whether the second address generated by the address processing part (145) is coincident with a second address at another wireless communication apparatus. A transmitting part (170) uses one of the first and second addresses generated by the address processing part (145) to transmit a frame to the other wireless communication apparatus.

摘要翻译： 公开了一种无中断同步通信的无线通信装置，即使在本地无线通信装置与附近的无线通信装置之间发生地址复制，也能够连续地进行同步通信。 多个无线通信装置构成自组织网络系统，其中它们彼此传输信标。 在无线通信装置中，地址处理部（145）生成包含对应于由本地无线通信装置生成的信标的信标位置信标周期的信标周期时隙号的第一地址和第二地址 随机分配。 信标处理部分（140）确定地址处理部分（145）生成的第二地址是否与另一无线通信装置处的第二地址一致。 发送部（170）使用由地址处理部（145）生成的第一和第二地址之一向另一无线通信装置发送帧。

公开(公告)号：US20090232057A1

公开(公告)日：2009-09-17

申请号：US12472869

申请日：2009-05-27

申请人： Hiroshi Doi ,  Masahiro Mimura ,  Taisuke Matsumoto

发明人： Hiroshi Doi ,  Masahiro Mimura ,  Taisuke Matsumoto

IPC分类号： H04W40/00

CPC分类号： H04W48/12 ,  H04W28/06 ,  Y02D70/142

摘要： A beacon slot position control section of a radio communication apparatus constituting a radio network system which detects whether empty beacon slots are present in a beacon period. When an empty beacon slot is present before the period in which the radio communication apparatus transmits a beacon, a movable counter starts counting a specified number of super frames. When the count is completed, the radio communication apparatus transmits a beacon of the radio communication apparatus at the earlier empty beacon slot. Consequently, since the empty beacon slots are eliminated and the beacon period is compacted, even if the number of radio communication apparatuses joining the radio network system fluctuates dynamically, the radio communication apparatus can perform radio communication with high efficiency and less waste of consumed electricity.

摘要翻译： 构成无线电网络系统的无线电通信装置的信标时隙位置控制部分，其检测信标周期中是否存在空信标时隙。 当在无线通信装置发送信标的期间之前存在空信标时隙时，可移动计数器开始计数指定数量的超帧。 当计数完成时，无线通信装置在较早的空信标时隙发送无线通信装置的信标。 因此，由于空信标时隙被消除并且信标周期被压缩，即使加入无线电网络系统的无线电通信装置的数量动态地波动，无线电通信装置可以以高效率和较少的消耗电力浪费进行无线电通信。

公开(公告)号：US07499396B2

公开(公告)日：2009-03-03

申请号：US10554717

申请日：2004-10-01

申请人： Masayuki Kumazawa ,  Taisuke Matsumoto ,  Shinkichi Ikeda ,  Hirokazu Kobayashi ,  Makoto Funabiki ,  Toyoki Kawahara

发明人： Masayuki Kumazawa ,  Taisuke Matsumoto ,  Shinkichi Ikeda ,  Hirokazu Kobayashi ,  Makoto Funabiki ,  Toyoki Kawahara

IPC分类号： H04L12/26

CPC分类号： H04L45/60 ,  H04L45/00 ,  H04L45/125 ,  H04L45/16 ,  H04L45/306 ,  H04L45/58 ,  H04L45/586

摘要： A router includes a multicast packet transmitting unit that multicasts the identifier of the router periodically, a relay determining unit that determines whether a received data packet should be relayed to a router in another segment, an order determining unit that determines, on the basis of information included in multicast packets from the other routers, the router to which the data packet shall be transferred, and a packet relaying unit that, when the data packet is not relayed, notifies the transmission source which transmitted the packet as to the router selected by the order determining unit to be the relay destination and then transfers the data packet to the selected router. A router suitable for relaying the packet is thus selected. Since switching of the relay router may be performed by following the router redirection message, it is unnecessary to add a new function to a terminal.

摘要翻译： 路由器包括周期性地组播路由器的标识符的组播分组发送单元，确定接收的数据分组是否应该被中继到另一分段中的路由器的中继确定单元，根据信息确定的顺序确定单元 包括来自其他路由器的组播分组，要传送数据分组的路由器，以及分组中继单元，当数据分组不被中继时，通知发送数据包的发送源与由 订单确定单元作为中继目的地，然后将数据包传送到所选择的路由器。 因此选择适合中继包的路由器。 由于可以通过跟随路由器重定向消息来执行中继路由器的切换，所以不必向终端添加新功能。