Channel Scan for Smart Meter Networks to Determine Operating Channels
    2.
    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。

    Channel scan for smart meter networks to determine operating channels
    3.
    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
    4.
    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。

    Method for Discovering and Maintaining Routes in Smart Meter Networks
    6.
    发明申请
    Method for Discovering and Maintaining Routes in Smart Meter Networks 有权
    智能仪表网络中发现和维护路由的方法

    公开(公告)号:US20120327792A1

    公开(公告)日:2012-12-27

    申请号:US13170005

    申请日:2011-06-27

    IPC分类号: H04L12/26

    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。

    Method of selecting antennas in a wireless communicating network for high reliability and low latency
    7.
    发明授权
    Method of selecting antennas in a wireless communicating network for high reliability and low latency 有权
    在无线通信网络中选择天线的方法,以实现高可靠性和低延迟

    公开(公告)号:US08737455B2

    公开(公告)日:2014-05-27

    申请号:US12979470

    申请日:2010-12-28

    IPC分类号: H04B1/38

    CPC分类号: H04L5/0023 H04L5/006

    摘要: A network includes a transmitter and a receiver, wherein the transmitter includes a set of transmit antennas and the receiver includes a set of receive antennas. The transmitter duplicates a packet as copies of the packet, and selects subsets of the set of transmit antennas independent of channel characteristics between the subsets of transmit antennas and the set of receive antennas, wherein combinations of the antennas in the subsets of the transmit antennas are different. The receiver selects subsets of the set of receive antennas independent of channel characteristics between the subsets of receive antennas and the set of transmit antennas, wherein combinations of the antennas in the subsets of the receive antennas are different. The selected subsets are used to transmit the packet, and retransmit the packet in case of a failure in a previous transmission.

    摘要翻译: 网络包括发射机和接收机,其中所述发射机包括一组发射天线,并且所述接收机包括一组接收天线。 发射机将分组复制为分组的副本,并且选择与发射天线的子集和接收天线集合之间的信道特性无关的发射天线组的子集,其中发射天线的子集中的天线的组合是 不同。 所述接收机选择所述一组接收天线的子集,与所述接收天线的子集和所述发射天线集合之间的信道特性无关,其中所述接收天线的子集中的天线的组合是不同的。 所选择的子集用于传输分组,并且在先前传输中发生故障的情况下重传分组。

    Method of Selecting Antennas in a Wireless Communicating Network for High Reliability and Low Latency
    8.
    发明申请
    Method of Selecting Antennas in a Wireless Communicating Network for High Reliability and Low Latency 有权
    在高可靠性和低延迟的无线通信网络中选择天线的方法

    公开(公告)号:US20120163486A1

    公开(公告)日:2012-06-28

    申请号:US12979470

    申请日:2010-12-28

    IPC分类号: H04L27/28

    CPC分类号: H04L5/0023 H04L5/006

    摘要: A network includes a transmitter and a receiver, wherein the transmitter includes a set of transmit antennas and the receiver includes a set of receive antennas. The transmitter duplicates a packet as copies of the packet, and selects subsets of the set of transmit antennas independent of channel characteristics between the subsets of transmit antennas and the set of receive antennas, wherein combinations of the antennas in the subsets of the transmit antennas are different. The receiver selects subsets of the set of receive antennas independent of channel characteristics between the subsets of receive antennas and the set of transmit antennas, wherein combinations of the antennas in the subsets of the receive antennas are different. The selected subsets are used to transmit the packet, and retransmit the packet in case of a failure in a previous transmission.

    摘要翻译: 网络包括发射机和接收机,其中所述发射机包括一组发射天线,并且所述接收机包括一组接收天线。 发射机将分组复制为分组的副本,并且选择与发射天线的子集和接收天线集合之间的信道特性无关的发射天线组的子集,其中发射天线的子集中的天线的组合是 不同。 所述接收机选择所述一组接收天线的子集,与所述接收天线的子集和所述发射天线集合之间的信道特性无关,其中所述接收天线的子集中的天线的组合是不同的。 所选择的子集用于传输分组,并且在先前传输中发生故障的情况下重传分组。

    Method for generating coverage maps for wireless networks with mobile devices
    9.
    发明授权
    Method for generating coverage maps for wireless networks with mobile devices 有权
    用于利用移动设备生成无线网络覆盖地图的方法

    公开(公告)号:US08452310B1

    公开(公告)日:2013-05-28

    申请号:US13435896

    申请日:2012-03-30

    IPC分类号: H04Q7/20

    CPC分类号: H04W16/18

    摘要: A coverage map for a wireless network is generated. The network includes a server communicating with clients in a coverage area. The clients are mobile devices. At the server, location and reliability information from each client is received. The server then constructs and maintains the coverage map according to the location and reliability information. The coverage map is used to deliver telematic information from the server to the clients in response to requests by the clients.

    摘要翻译: 生成无线网络的覆盖图。 该网络包括与覆盖区域中的客户端进行通信的服务器。 客户端是移动设备。 在服务器处,收到每个客户端的位置和可靠性信息。 然后,服务器根据位置和可靠性信息构建和维护覆盖图。 覆盖地图用于响应客户的请求将远程信息从服务器传送到客户端。

    Packet synchronizing for communications over a wireless communication system

    公开(公告)号:US08369379B2

    公开(公告)日:2013-02-05

    申请号:US12453685

    申请日:2009-05-19

    IPC分类号: H04B1/7156 H04L27/28 H04J4/00

    CPC分类号: H04J3/0608

    摘要: Synchronization methods and systems for communications over a multi-band system are presented. A synchronization technique for communications over a multi-band system includes receiving a packet of preamble symbols respectively transmitted over a sequence of frequency sub-bands according to one of a plurality of frequency hopping patterns, wherein the plurality of frequency hopping patterns are partitioned into a plurality of disjoint groups, each group having a different associated periodicity; computing, in parallel, respective autocorrelation values of the packet received in a selected frequency sub-band at a plurality of symbol delays; and selecting one of the plurality of groups of frequency hopping patterns based on the autocorrelation values at the plurality of symbol delays.