Method for scheduling data transmission in hybrid communication networks for transportation safety systems
    1.
    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。

    Synchronous Data Transmission in Hybrid Communication Networks for Transportation Safety Systems
    2.
    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。

    Wireless communication network for transportation safety systems
    3.
    发明授权
    Wireless communication network for transportation safety systems 失效
    运输安全系统无线通信网络

    公开(公告)号:US08418813B2

    公开(公告)日:2013-04-16

    申请号:US12950683

    申请日:2010-11-19

    IPC分类号: B66B1/28

    CPC分类号: B66B1/34 B66B5/0031 B66B13/22

    摘要: In a network for a safety system in a transportation system, the transportation system includes a shaft and a car arranged in the shaft. A first wall node is at a first end of the shaft and a second wall node is at a second end of the shaft to communicate safety messages with the car. Each wall node includes at least one wireless transceiver connected to one or more antennas. Each car in the shaft includes at least two wireless transceiver connected to one or more antennas, wherein the first transceiver of the car uses a first frequency and the second transceiver of the car uses a second frequency to communicate each safety messages in duplicate. A wired backbone connects the set of wall nodes to a controller of the safety system of the transportation system.

    摘要翻译: 在用于运输系统中的安全系统的网络中,运输系统包括布置在轴中的轴和轿厢。 第一壁节点位于轴的第一端,并且第二壁节点位于轴的第二端,以将安全信息与轿厢通信。 每个墙壁节点包括连接到一个或多个天线的至少一个无线收发器。 轴中的每个汽车包括连接到一个或多个天线的至少两个无线收发器,其中汽车的第一收发器使用第一频率,并且汽车的第二收发器使用第二频率来重复地传送每个安全消息。 有线骨干将该组墙壁节点连接到运输系统的安全系统的控制器。

    Method for Scheduling Data Transmission in Hybrid Communication Networks for Transportation Safety Systems
    4.
    发明申请
    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数据传输调度方法

    公开(公告)号:US20120147879A1

    公开(公告)日:2012-06-14

    申请号:US12979777

    申请日:2010-12-28

    IPC分类号: H04W72/04 H04W56/00

    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。

    Wireless Communication Network for Transportation Safety Systems
    5.
    发明申请
    Wireless Communication Network for Transportation Safety Systems 失效
    运输安全系统无线通信网络

    公开(公告)号:US20120129458A1

    公开(公告)日:2012-05-24

    申请号:US12950683

    申请日:2010-11-19

    IPC分类号: H04B7/00

    CPC分类号: B66B1/34 B66B5/0031 B66B13/22

    摘要: In a network for a safety system in a transportation system, the transportation system includes a shaft and a car arranged in the shaft. A first wall node is at a first end of the shaft and a second wall node is at a second end of the shaft to communicate safety messages with the car. Each wall node includes at least one wireless transceiver connected to one or more antennas. Each car in the shaft includes at least two wireless transceiver connected to one or more antennas, wherein the first transceiver of the car uses a first frequency and the second transceiver of the car uses a second frequency to communicate each safety messages in duplicate. A wired backbone connects the set of wall nodes to a controller of the safety system of the transportation system.

    摘要翻译: 在用于运输系统中的安全系统的网络中,运输系统包括布置在轴中的轴和轿厢。 第一壁节点位于轴的第一端,并且第二壁节点位于轴的第二端,以将安全信息与轿厢通信。 每个墙壁节点包括连接到一个或多个天线的至少一个无线收发器。 轴中的每个汽车包括连接到一个或多个天线的至少两个无线收发器,其中汽车的第一收发器使用第一频率,并且汽车的第二收发器使用第二频率来重复地传送每个安全消息。 有线骨干将该组墙壁节点连接到运输系统的安全系统的控制器。

    Timeslot sharing protocol for wireless communication networks
    6.
    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。

    Timeslot Sharing Protocol for Wireless Communication Networks
    7.
    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。

    Method for Broadcasting Alert Message in Mobile Multi-Hop Networks Using Inferred Distance Prioritization
    8.
    发明申请
    Method for Broadcasting Alert Message in Mobile Multi-Hop Networks Using Inferred Distance Prioritization 有权
    使用推测距离优先级在移动多跳网络中广播警报消息的方法

    公开(公告)号:US20100182982A1

    公开(公告)日:2010-07-22

    申请号:US12357157

    申请日:2009-01-21

    IPC分类号: H04W74/08

    摘要: A method and system broadcasts an alert packet in a wireless multi-hop network of nodes. An event is sensed in a source node of the network, and an alert packet is broadcast in response to sensing the event. The alert packet is received in a set of candidate nodes within a broadcast range of the source node. Each candidate node infers a distance between the candidate node and the source node based on a receive power of the received alert packet, and determines a priority for rebroadcasting the alert packet, wherein the priority is based on the distance to minimizing a probability of collisions while rebroadcasting the alert packet and extend a range of the rebroadcasting.

    摘要翻译: 方法和系统在节点的无线多跳网络中广播警报分组。 在网络的源节点中感测到事件,并且响应于感测到事件来广播警报分组。 警报包在源节点的广播范围内的一组候选节点中被接收。 每个候选节点基于所接收的报警分组的接收功率来推测候选节点和源节点之间的距离,并且确定重新广播报警分组的优先级,其中优先级基于最小化冲突概率的距离,而 重新广播警报包并扩展一个范围的转播。

    Method for broadcasting alert message in mobile multi-hop networks using inferred distance prioritization
    9.
    发明授权
    Method for broadcasting alert message in mobile multi-hop networks using inferred distance prioritization 有权
    使用推测的距离优先级在移动多跳网络中广播警报消息的方法

    公开(公告)号:US08155044B2

    公开(公告)日:2012-04-10

    申请号:US12357157

    申请日:2009-01-21

    IPC分类号: H04H20/71

    摘要: A method and system broadcasts an alert packet in a wireless multi-hop network of nodes. An event is sensed in a source node of the network, and an alert packet is broadcast in response to sensing the event. The alert packet is received in a set of candidate nodes within a broadcast range of the source node. Each candidate node infers a distance between the candidate node and the source node based on a receive power of the received alert packet, and determines a priority for rebroadcasting the alert packet, wherein the priority is based on the distance to minimizing a probability of collisions while rebroadcasting the alert packet and extend a range of the rebroadcasting.

    摘要翻译: 方法和系统在节点的无线多跳网络中广播警报分组。 在网络的源节点中感测到事件,并且响应于感测到事件来广播警报分组。 警报包在源节点的广播范围内的一组候选节点中被接收。 每个候选节点基于所接收的报警分组的接收功率来推测候选节点和源节点之间的距离,并且确定重新广播报警分组的优先级,其中优先级基于最小化冲突概率的距离,而 重新广播警报包并扩展一个范围的转播。

    Fast Handover Protocols for Wimax Networks
    10.
    发明申请
    Fast Handover Protocols for Wimax Networks 有权
    Wimax网络的快速切换协议

    公开(公告)号:US20100208690A1

    公开(公告)日:2010-08-19

    申请号:US12370750

    申请日:2009-02-13

    IPC分类号: H04W36/00

    CPC分类号: H04W36/0055 H04W36/0038

    摘要: A method performs handover of a mobile station (MS from a current base station (BSC) connected to a target base station (BST) via a backbone in a Worldwide interoperability for Microwave Access (WiMAX) mobile communication network. The MS, before handover, transmits a Connection Identifier Request (CID-REQ) to the BST via the BSC, and receiving a Connection Identifier Response (CID-RSP) from the BST via the BSC. The MS, before handover, transmits a Subscriber Station (SS) Basic Capability Request (SBC-REQ), and receives a SS Basic Capability Response (SBC-RSP) from the BST via the BSC. Then, the MS transmits a Ranging Request (RNG-REQ) to the BST, and receives a Ranging Response (RNG-RSP) from the BST. During the handover, the MS transmits a Registration Request (REG-REQ) to the BST, and receives a Registration Response from the BST to establish the connection between the MS and the BST.

    摘要翻译: 一种方法是在全球微波接入(WiMAX)移动通信网络的互操作性中,经由骨干网执行移动台(来自连接到目标基站(BST)的当前基站(BSC))的切换, 通过BSC向BST发送连接标识符请求(CID-REQ),并通过BSC从BST接收连接标识符响应(CID-RSP),MS在切换之前发送用户站(SS)基本能力 请求(SBC-REQ),并通过BSC从BST接收SS基本能力响应(SBC-RSP),然后MS向BST发送测距请求(RNG-REQ),并接收测距响应(RNG -RSP),在切换期间,MS向BST发送注册请求(REG-REQ),并从BST接收注册响应以建立MS与BST之间的连接。