Time slot and frequency allocation in wireless communication networks
    1.
    发明授权
    Time slot and frequency allocation in wireless communication networks 有权
    无线通信网络中的时隙和频率分配

    公开(公告)号:US08824414B2

    公开(公告)日:2014-09-02

    申请号:US13418494

    申请日:2012-03-13

    IPC分类号: H04W4/00

    CPC分类号: H04W28/16 H04B1/713 H04W84/18

    摘要: In a wireless network including a server and clients, network resources, such as time slots and channel frequencies, are managed by having the server define the resources for future use by the clients, while the clients actually allocate the resources for their exclusive use according to performance criteria determined by the clients. The network can be ad-hoc and in industrial environments with low-latency requirements.

    摘要翻译: 在包括服务器和客户端的无线网络中,通过使服务器定义用于客户端将来使用的资源来管理诸如时隙和信道频率之类的网络资源,而客户端实际分配用于其专用的资源 绩效标准由客户确定。 该网络可以是临时的,并且在低延迟要求的工业环境中。

    Method for scheduling data transmission in hybrid communication networks for transportation safety systems
    2.
    发明授权
    Method for scheduling data transmission in hybrid communication networks for transportation safety systems 有权
    运输安全系统混合通信网络中数据传输调度方法

    公开(公告)号:US08565214B2

    公开(公告)日:2013-10-22

    申请号:US12979777

    申请日:2010-12-28

    IPC分类号: H04W4/00

    CPC分类号: H04W72/1242

    摘要: A hybrid communication network for a transportation safety system includes a fixed wired nodes and mobile wireless nodes. Because the wired nodes operate independently packets transmitted by the wired nodes to the wireless nodes need to be synchronized. A downlink travel time for downlink packets traveling from a controller to the wireless nodes is determined. Then, the controller schedules downlink data intervals (DDI) based on the downlink travel time; and transmits downlink packets to the wireless nodes during the DDI, such that a latency requirement of the transportation safety system is satisfied.

    摘要翻译: 用于运输安全系统的混合通信网络包括固定有线节点和移动无线节点。 由于有线节点独立运行,有线节点传输到无线节点的数据包需要同步。 确定从控制器到无线节点的下行链路分组的下行链路行进时间。 然后,控制器基于下行链路行进时间调度下行链路数据间隔(DDI); 并且在DDI期间向无线节点发送下行链路分组,使得满足运输安全系统的等待时间要求。

    Timeslot sharing protocol for wireless communication networks
    3.
    发明授权
    Timeslot sharing protocol for wireless communication networks 失效
    无线通信网络的时隙共享协议

    公开(公告)号:US08571003B2

    公开(公告)日:2013-10-29

    申请号:US12193911

    申请日:2008-08-19

    IPC分类号: H04B7/212 H04J3/00 H04J3/17

    摘要: A method for transmitting information in a communication network of multiple nodes, in which information transmission is partitioned into successive superframes, and in which each superframe is partitioned into a beacon period followed by a data period, which may consist of a contention free period (CFP), and each beacon period and CFP of the data period is partitioned into timeslots. The method includes allocating to at least a first node of the multiple nodes a designated timeslot in which to transmit data in at least one of a plurality of superframes, and allocating to at least a second node of the multiple nodes the same designated timeslot in which to transmit information during at least one subsequent superframe.

    摘要翻译: 一种用于在多个节点的通信网络中发送信息的方法,其中信息传输被划分为连续的超帧,并且其中每个超帧被划分成信标周期,随后是数据周期,数据周期可以包括无争用周期(CFP ),并且将数据周期的每个信标周期和CFP划分为时隙。 该方法包括向多个节点中的至少第一节点分配指定时隙,在多个节点中的至少一个超帧中发送数据,并且向多个节点的至少第二节点分配相同的指定时隙,其中 以在至少一个后续超帧期间传送信息。

    Channel Scan for Smart Meter Networks to Determine Operating Channels
    4.
    发明申请
    Channel Scan for Smart Meter Networks to Determine Operating Channels 有权
    频道扫描智能电表网络以确定操作频道

    公开(公告)号:US20130223334A1

    公开(公告)日:2013-08-29

    申请号:US13404354

    申请日:2012-02-24

    IPC分类号: H04W8/00

    CPC分类号: H04W84/18 H04W48/16

    摘要: An operation channel in a multi-hop network is determined. The network uses a set of channels, and one of the nodes is a network management node. The operation channel is selected in the network management node. Then, the network management node broadcasts a channel information packet including the operation channel using all channels. The channel information packet is received in each of other nodes, either directly from the network management node or from an intermediate node that received and rebroadcasted the channel information packet. Lastly, the operation channel in each node is set according to the channel information packet until the network is formed.

    摘要翻译: 确定多跳网络中的操作信道。 网络使用一组信道,其中一个节点是网络管理节点。 在网络管理节点中选择操作通道。 然后,网络管理节点使用所有信道广播包括操作信道的信道信息分组。 信道信息分组在每个其他节点中直接从网络管理节点或从接收和重播广播信息分组的中间节点接收。 最后,根据信道信息包设置每个节点的操作信道,直到形成网络。

    Synchronous Data Transmission in Hybrid Communication Networks for Transportation Safety Systems
    5.
    发明申请
    Synchronous Data Transmission in Hybrid Communication Networks for Transportation Safety Systems 审中-公开
    用于运输安全系统的混合通信网络中的同步数据传输

    公开(公告)号:US20120147864A1

    公开(公告)日:2012-06-14

    申请号:US12964283

    申请日:2010-12-09

    IPC分类号: H04W84/02

    CPC分类号: B66B13/22 H04W84/047

    摘要: A hybrid communication network for a transportation safety system includes a wired network including a set of fixed nodes. Each fixed node includes a wired interface for connecting the fixed node to the wired network and at least one wireless interface. The set of fixed nodes further includes a head node at a first end of the wired network connected to a controller, a terminal node at a second end of the wired network, and a set of relay nodes arranged between the head node and the terminal node. A wireless network includes a set of mobile nodes and a set of fixed nodes connected to the wired network. Each mobile node includes at least one of the wireless interfaces, and each mobile node is arranged in a moveable car.

    摘要翻译: 用于运输安全系统的混合通信网络包括包括一组固定节点的有线网络。 每个固定节点包括用于将固定节点连接到有线网络和至少一个无线接口的有线接口。 所述固定节点集合还包括连接到控制器的有线网络的第一端的头节点,有线网络的第二端的终端节点以及布置在所述头节点和所述终端节点之间的一组中继节点 。 无线网络包括一组移动节点和连接到有线网络的一组固定节点。 每个移动节点包括无线接口中的至少一个,并且每个移动节点被布置在可移动的车中。

    Method for discovering multiple routes in sensor networks
    6.
    发明授权
    Method for discovering multiple routes in sensor networks 有权
    在传感器网络中发现多条路线的方法

    公开(公告)号:US08861398B2

    公开(公告)日:2014-10-14

    申请号:US13077327

    申请日:2011-03-31

    IPC分类号: H04L12/28

    摘要: Multiple routes from a data source node to multiple data destination nodes in a large scale multi-hop mesh network are discovered. Nodes discover multiple routes to two destinations in an initial discovery phase that includes only two network-wide flooding of packets. The method can also work with one destination. The method can be extended to include more destinations with a proportional increase in the communication overhead. After the completion of the discovery phase, nodes can communicate or forward their own or received data by using any of the available routes.

    摘要翻译: 发现从数据源节点到大规模多跳网状网络中的多个数据目的地节点的多条路由。 节点在初始发现阶段发现多个到两个目的地的路由,其中​​仅包括两个网络范围的数据包泛洪。 该方法也可以与一个目的地一起工作。 该方法可以扩展到包括更多的目的地,在通信开销中成比例地增加。 发现阶段完成后,节点可以通过使用任何可用的路由进行通信或转发自己或接收的数据。

    Channel scan for smart meter networks to determine operating channels
    7.
    发明授权
    Channel scan for smart meter networks to determine operating channels 有权
    频道扫描智能电表网络以确定运营频道

    公开(公告)号:US08654711B2

    公开(公告)日:2014-02-18

    申请号:US13404354

    申请日:2012-02-24

    IPC分类号: H04W84/18

    CPC分类号: H04W84/18 H04W48/16

    摘要: An operation channel in a multi-hop network is determined. The network uses a set of channels, and one of the nodes is a network management node. The operation channel is selected in the network management node. Then, the network management node broadcasts a channel information packet including the operation channel using all channels. The channel information packet is received in each of other nodes, either directly from the network management node or from an intermediate node that received and rebroadcasted the channel information packet. Lastly, the operation channel in each node is set according to the channel information packet until the network is formed.

    摘要翻译: 确定多跳网络中的操作信道。 网络使用一组信道,其中一个节点是网络管理节点。 在网络管理节点中选择操作通道。 然后,网络管理节点使用所有信道广播包括操作信道的信道信息分组。 信道信息分组在每个其他节点中直接从网络管理节点或从接收和重播广播信息分组的中间节点接收。 最后,根据信道信息包设置每个节点的操作信道,直到形成网络。

    Method for discovering and maintaining routes in smart meter networks
    8.
    发明授权
    Method for discovering and maintaining routes in smart meter networks 有权
    在智能电表网络中发现和维护路由的方法

    公开(公告)号:US08509109B2

    公开(公告)日:2013-08-13

    申请号:US13170005

    申请日:2011-06-27

    IPC分类号: G06F11/00 H04L12/28

    摘要: A set of routes are discovered in a network including concentrators, smart meters and an imaginary node. Each concentrator node, a source, broadcasts a route request (RREQ) packet to the imaginary destination node. Intermediate nodes store a route as a node list (NL) in the RREQ packet and as a route table (RT) in the node. Then, each smart meter node can select a primary route and a secondary route from the smart meter node to any concentrator from the route table.

    摘要翻译: 在网络中发现一组路由,包括集中器,智能电表和虚拟节点。 每个集中器节点(源)向虚拟目的节点广播路由请求(RREQ)分组。 中间节点将路由作为节点列表(NL)存储在RREQ分组中,并作为节点中的路由表(RT)存储。 然后,每个智能电表节点可以从路由表中选择主路由和从智能电表节点到任何集中器的辅路。

    Timeslot Sharing Protocol for Wireless Communication Networks
    9.
    发明申请
    Timeslot Sharing Protocol for Wireless Communication Networks 失效
    无线通信网络的时隙共享协议

    公开(公告)号:US20090213816A1

    公开(公告)日:2009-08-27

    申请号:US12193911

    申请日:2008-08-19

    IPC分类号: H04J3/00

    摘要: A method for transmitting information in a communication network of multiple nodes, in which information transmission is partitioned into successive superframes, and in which each superframe is partitioned into a beacon period followed by a data period, which may consist of a contention free period (CFP), and each beacon period and CFP of the data period is partitioned into timeslots. The method includes allocating to at least a first node of the multiple nodes a designated timeslot in which to transmit data in at least one of a plurality of superframes, and allocating to at least a second node of the multiple nodes the same designated timeslot in which to transmit information during at least one subsequent superframe.

    摘要翻译: 一种用于在多个节点的通信网络中发送信息的方法,其中信息传输被划分为连续的超帧,并且其中每个超帧被划分成信标周期,随后是数据周期,数据周期可以包括无争用周期(CFP ),并且将数据周期的每个信标周期和CFP划分为时隙。 该方法包括向多个节点中的至少第一节点分配指定时隙,在多个节点中的至少一个超帧中发送数据,并且向多个节点的至少第二节点分配相同的指定时隙,其中 以在至少一个后续超帧期间传送信息。