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    Scheduling communication frames in a wireless network
    1.
    发明授权
    Scheduling communication frames in a wireless network 有权
    在无线网络中调度通信帧

    公开(公告)号：US08356431B2

    公开(公告)日：2013-01-22

    申请号：US12101074

    申请日：2008-04-10

    申请人： Wallace A. Pratt, Jr. ,  Mark J. Nixon ,  Eric D. Rotvold ,  Robin S. Pramanik ,  Tomas P. Lennvall ,  Yuri Zats ,  Terrence L. Blevins

    发明人： Wallace A. Pratt, Jr. ,  Mark J. Nixon ,  Eric D. Rotvold ,  Robin S. Pramanik ,  Tomas P. Lennvall ,  Yuri Zats ,  Terrence L. Blevins

    IPC分类号： H04J3/00

    CPC分类号： H04W84/18 ,  H04J4/00 ,  H04W72/1205

    摘要： A method of scheduling communications in a multi-node wireless mesh network which has a first network device and a second network device includes defining a communication timeslot of a predetermined duration, defining a first superframe having a repeating superframe cycle including a first number of the communication timeslots, defining a second superframe having a repeating superframe cycle including a second number of the communication timeslots, aligning the first superframe with the second superframe, so that one of the timeslots of the first superframe begins simultaneously with one of the timeslots of the second superframe, and associating the first and the second superframes with a network schedule, so that the first network device and the second network device transmit data according to the network schedule.

    摘要翻译： 一种在具有第一网络设备和第二网络设备的多节点无线网状网络中调度通信的方法包括定义预定持续时间的通信时隙，定义具有重复超帧周期的第一超帧，所述重复超帧周期包括第一数量的通信 定义具有包括第二数量的通信时隙的重复超帧周期的第二超帧，使第一超帧与第二超帧对准，使得第一超帧的时隙之一与第二超帧的时隙之一同时开始 并且将第一和第二超帧与网络调度相关联，使得第一网络设备和第二网络设备根据网络调度来发送数据。

    Routing packets on a network using directed graphs
    2.
    发明授权
    Routing packets on a network using directed graphs 有权
    使用有向图在网络上路由数据包

    公开(公告)号：US08892769B2

    公开(公告)日：2014-11-18

    申请号：US13106464

    申请日：2011-05-12

    申请人： Wallace A. Pratt, Jr. ,  Mark J. Nixon ,  Eric D. Rotvold ,  Robin S. Pramanik ,  Tomas P. Lennvall ,  Yuri Zats ,  Terrence Lynn Blevins

    发明人： Wallace A. Pratt, Jr. ,  Mark J. Nixon ,  Eric D. Rotvold ,  Robin S. Pramanik ,  Tomas P. Lennvall ,  Yuri Zats ,  Terrence Lynn Blevins

    IPC分类号： G06F15/173 ,  H04L12/721 ,  H04L12/707 ,  H04L12/66 ,  H04L12/717 ,  H04W40/22 ,  G06F15/16

    CPC分类号： H04L12/66 ,  H04L45/22 ,  H04L45/34 ,  H04L45/42 ,  H04L45/44 ,  H04W40/22 ,  Y02D70/1222 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22 ,  Y02D70/39

    摘要： A method of routing a data packet between a first node and a second node on a communication network includes defining a first graph through the first node and the second node and zero or more intermediate nodes, associating several nodes which belong to the communication network with the first graph, associating a first unique graph identifier with the first graph and providing at least partial definitions of the first graph and the first unique identifier to at least some of the nodes associated with the first graph. The method then sends data packet with the graph identifier from the first node, and directs the data packet to the second node via the zero or more intermediate nodes using the graph identifier. This method may include forwarding the packet to a neighbor node of an intermediate node if the intermediate node and the neighbor node are nodes associated with the first graph and if the intermediate node and the neighbor node are connected by at least one direct communication connection.

    摘要翻译： 在通信网络上的第一节点和第二节点之间路由数据分组的方法包括通过第一节点和第二节点以及零个或多个中间节点定义第一图，将属于通信网络的几个节点与 第一图，将第一唯一图标识符与第一图相关联，并且将第一图和第一唯一标识符的至少部分定义提供给与第一图相关联的至少一些节点。 然后，该方法从第一节点发送具有图形标识符的数据分组，并且使用图形标识符经由零个或多个中间节点将数据分组引导到第二节点。 如果中间节点和相邻节点是与第一图相关联的节点，以及中间节点和邻居节点是否通过至少一个直接通信连接连接，则该方法可以包括将分组转发到中间节点的邻居节点。

    Synchronizing timeslots in a wireless communication protocol
    3.
    发明授权
    Synchronizing timeslots in a wireless communication protocol 有权
    在无线通信协议中同步时隙

    公开(公告)号：US08660108B2

    公开(公告)日：2014-02-25

    申请号：US12101005

    申请日：2008-04-10

    申请人： Wallace A. Pratt, Jr. ,  Mark J. Nixon ,  Eric D. Rotvold ,  Robin S. Pramanik ,  Tomas P. Lennvall ,  Yuri Zats

    发明人： Wallace A. Pratt, Jr. ,  Mark J. Nixon ,  Eric D. Rotvold ,  Robin S. Pramanik ,  Tomas P. Lennvall ,  Yuri Zats

    IPC分类号： H04J3/06

    CPC分类号： G01D21/00 ,  H04W24/00 ,  H04W56/0015 ,  H04W56/002 ,  H04W80/00

    摘要： A method for synchronizing communications in wireless mesh network operating in a process control environment and including a plurality of network devices includes defining a communication timeslot of a predetermined duration, wherein each of the plurality of network devices transmits or receives data only within the communication timeslot generating a network schedule including at least one superframe having repeating superframe cycles each having a number of communication timeslots sequentially numbered relative to a beginning of each cycle, the number of communication timeslots defining a length of the at least one superframe, maintaining an absolute slot number indicative of a number of communication timeslots scheduled since a start time of the wireless network, synchronizing each of the plurality of network devices with respect to a timing of an individual communication timeslot, and synchronizing each of the plurality of network devices with the network schedule based on the absolute slot number.

    摘要翻译： 一种在过程控制环境中操作并包括多个网络设备的无线网状网络中的通信同步的方法包括：定义预定持续时间的通信时隙，其中，所述多个网络设备中的每一个仅在所述通信时隙内产生或接收数据 网络调度包括至少一个具有重复超帧周期的超帧，每个超帧具有相对于每个周期的开始顺序编号的多个通信时隙，定义所述至少一个超帧的长度的通信时隙的数量，维持绝对时隙号指示 从无线网络的开始时间安排的多个通信时隙中的多个网络设备中的每一个相对于各个通信时隙的定时同步，并且基于多个网络设备中的每一个基于 绝对 ollot槽号。

    Routing packets on a network using directed graphs
    4.
    发明授权
    Routing packets on a network using directed graphs 有权
    使用有向图在网络上路由数据包

    公开(公告)号：US08230108B2

    公开(公告)日：2012-07-24

    申请号：US12101071

    申请日：2008-04-10

    申请人： Wallace A. Pratt, Jr. ,  Mark J. Nixon ,  Eric D. Rotvold ,  Robin S. Pramanik ,  Tomas P. Lennvall ,  Yuri Zats ,  Terrence L. Blevins

    发明人： Wallace A. Pratt, Jr. ,  Mark J. Nixon ,  Eric D. Rotvold ,  Robin S. Pramanik ,  Tomas P. Lennvall ,  Yuri Zats ,  Terrence L. Blevins

    IPC分类号： G06F15/16 ,  G06F12/00

    CPC分类号： H04L12/66 ,  H04L45/22 ,  H04L45/34 ,  H04L45/42 ,  H04L45/44 ,  H04W40/22 ,  Y02D70/1222 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22 ,  Y02D70/39

    摘要： A method of routing a data packet between a first node and a second node on a communication network includes defining a first graph through the first node and the second node and zero or more intermediate nodes, associating several nodes which belong to the communication network with the first graph, associating a first unique graph identifier with the first graph and providing at least partial definitions of the first graph and the first unique identifier to at least some of the nodes associated with the first graph. The method then sends data packet with the graph identifier from the first node, and directs the data packet to the second node via the zero or more intermediate nodes using the graph identifier. This method may include forwarding the packet to a neighbor node of an intermediate node if the intermediate node and the neighbor node are nodes associated with the first graph and if the intermediate node and the neighbor node are connected by at least one direct communication connection.

    摘要翻译： 在通信网络上的第一节点和第二节点之间路由数据分组的方法包括通过第一节点和第二节点以及零个或多个中间节点定义第一图，将属于通信网络的几个节点与 第一图，将第一唯一图标识符与第一图相关联，并且将第一图和第一唯一标识符的至少部分定义提供给与第一图相关联的至少一些节点。 然后，该方法从第一节点发送具有图形标识符的数据分组，并且使用图形标识符经由零个或多个中间节点将数据分组引导到第二节点。 如果中间节点和相邻节点是与第一图相关联的节点，以及中间节点和邻居节点是否通过至少一个直接通信连接连接，则该方法可以包括将分组转发到中间节点的邻居节点。

    Synchronizing Timeslots in a Wireless Communication Protocol
    6.
    发明申请
    Synchronizing Timeslots in a Wireless Communication Protocol 有权
    在无线通信协议中同步时隙

    公开(公告)号：US20090052429A1

    公开(公告)日：2009-02-26

    申请号：US12101005

    申请日：2008-04-10

    申请人： Wallace A. Pratt, JR. ,  Mark J. Nixon ,  Eric D. Rotvold ,  Robin S. Pramanik ,  Tomas P. Lennvall ,  Yuri Zats

    发明人： Wallace A. Pratt, JR. ,  Mark J. Nixon ,  Eric D. Rotvold ,  Robin S. Pramanik ,  Tomas P. Lennvall ,  Yuri Zats

    IPC分类号： H04J3/06

    CPC分类号： G01D21/00 ,  H04W24/00 ,  H04W56/0015 ,  H04W56/002 ,  H04W80/00

    摘要： A method for synchronizing communications in wireless mesh network operating in a process control environment and including a plurality of network devices includes defining a communication timeslot of a predetermined duration, wherein each of the plurality of network devices transmits or receives data only within the communication timeslot generating a network schedule including at least one superframe having repeating superframe cycles each having a number of communication timeslots sequentially numbered relative to a beginning of each cycle, the number of communication timeslots defining a length of the at least one superframe, maintaining an absolute slot number indicative of a number of communication timeslots scheduled since a start time of the wireless network, synchronizing each of the plurality of network devices with respect to a timing of an individual communication timeslot, and synchronizing each of the plurality of network devices with the network schedule based on the absolute slot number.

    摘要翻译： 一种在过程控制环境中操作并包括多个网络设备的无线网状网络中的通信同步的方法包括：定义预定持续时间的通信时隙，其中，所述多个网络设备中的每一个仅在所述通信时隙内产生或接收数据 网络调度包括至少一个具有重复超帧周期的超帧，每个超帧具有相对于每个周期的开始顺序编号的多个通信时隙，定义所述至少一个超帧的长度的通信时隙的数量，维持绝对时隙号指示 从无线网络的开始时间安排的多个通信时隙中的多个网络设备中的每一个相对于各个通信时隙的定时同步，并且基于多个网络设备中的每一个基于 绝对 ollot槽号。

    Scheduling Communication Frames in a Wireless Network
    7.
    发明申请
    Scheduling Communication Frames in a Wireless Network 有权
    在无线网络中调度通信帧

    公开(公告)号：US20090046675A1

    公开(公告)日：2009-02-19

    申请号：US12101074

    申请日：2008-04-10

    申请人： Wallace A. Pratt, JR. ,  Mark J. Nixon ,  Eric D. Rotvold ,  Robin S. Pramanik ,  Tomas P. Lennvall ,  Yuri Zats ,  Terrence L. Blevins

    发明人： Wallace A. Pratt, JR. ,  Mark J. Nixon ,  Eric D. Rotvold ,  Robin S. Pramanik ,  Tomas P. Lennvall ,  Yuri Zats ,  Terrence L. Blevins

    IPC分类号： H04J3/00

    CPC分类号： H04W84/18 ,  H04J4/00 ,  H04W72/1205

    摘要： A method of scheduling communications in a multi-node wireless mesh network which has a first network device and a second network device includes defining a communication timeslot of a predetermined duration, defining a first superframe having a repeating superframe cycle including a first number of the communication timeslots, defining a second superframe having a repeating superframe cycle including a second number of the communication timeslots, aligning the first superframe with the second superframe, so that one of the timeslots of the first superframe begins simultaneously with one of the timeslots of the second superframe, and associating the first and the second superframes with a network schedule, so that the first network device and the second network device transmit data according to the network schedule.

    摘要翻译： 一种在具有第一网络设备和第二网络设备的多节点无线网状网络中调度通信的方法包括定义预定持续时间的通信时隙，定义具有重复超帧周期的第一超帧，所述重复超帧周期包括第一数量的通信 定义具有包括第二数量的通信时隙的重复超帧周期的第二超帧，使第一超帧与第二超帧对准，使得第一超帧的时隙之一与第二超帧的时隙之一同时开始 并且将第一和第二超帧与网络调度相关联，使得第一网络设备和第二网络设备根据网络调度来发送数据。