公开(公告)号：US08452310B1

公开(公告)日：2013-05-28

申请号：US13435896

申请日：2012-03-30

申请人： Philip Orlik ,  Jianlin Guo ,  Yukimasa Nagai

发明人： Philip Orlik ,  Jianlin Guo ,  Yukimasa Nagai

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。

公开(公告)号：US08750100B2

公开(公告)日：2014-06-10

申请号：US13371423

申请日：2012-02-11

申请人： Jianlin Guo ,  Chuan Han ,  Ghulam M Bhatti ,  Philip Orlik ,  Jinyun Zhang

发明人： Jianlin Guo ,  Chuan Han ,  Ghulam M Bhatti ,  Philip Orlik ,  Jinyun Zhang

IPC分类号： G01R31/08

CPC分类号： H04W40/22 ,  H04L45/18 ,  H04L45/28 ,  H04L45/48 ,  Y02D70/122 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/22 ,  Y02D70/39

摘要： Broken links in a sensor network are avoided by representing the network as a DODAG. A rank associated with each node defines a position of each node relative to other nodes, and the rank is in a form of a proper fraction, and the rank of each node never increases to enable loop-free routing.

摘要翻译： 通过将网络表示为DODAG来避免传感器网络中的链路断开。 与每个节点相关联的等级定义每个节点相对于其他节点的位置，并且秩是适当分数的形式，并且每个节点的等级从不增加以实现无环路由。

公开(公告)号：US08737455B2

公开(公告)日：2014-05-27

申请号：US12979470

申请日：2010-12-28

申请人： Raymond Yim ,  Jianlin Guo ,  Philip Orlik ,  Jinyun Zhang

发明人： Raymond Yim ,  Jianlin Guo ,  Philip Orlik ,  Jinyun Zhang

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。

公开(公告)号：US08654711B2

公开(公告)日：2014-02-18

申请号：US13404354

申请日：2012-02-24

申请人： Jianlin Guo ,  Philip Orlik ,  Jinyun Zhang ,  Ghulam M Bhatti

发明人： Jianlin Guo ,  Philip Orlik ,  Jinyun Zhang ,  Ghulam M Bhatti

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。

公开(公告)号：US08509109B2

公开(公告)日：2013-08-13

申请号：US13170005

申请日：2011-06-27

申请人： Jianlin Guo ,  Ghulam M Bhatti ,  Philip Orlik ,  Jinyun Zhang

发明人： Jianlin Guo ,  Ghulam M Bhatti ,  Philip Orlik ,  Jinyun Zhang

IPC分类号： G06F11/00 ,  H04L12/28

CPC分类号： H04W40/02 ,  H04L45/1283 ,  H04L45/18 ,  H04L45/24

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。

公开(公告)号：US20130208583A1

公开(公告)日：2013-08-15

申请号：US13371423

申请日：2012-02-11

申请人： Jianlin Guo ,  Chuan Han ,  Ghulam M. Bhatti ,  Philip Orlik ,  Jinyun Zhang

发明人： Jianlin Guo ,  Chuan Han ,  Ghulam M. Bhatti ,  Philip Orlik ,  Jinyun Zhang

IPC分类号： H04L12/24 ,  H04L12/26

CPC分类号： H04W40/22 ,  H04L45/18 ,  H04L45/28 ,  H04L45/48 ,  Y02D70/122 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/22 ,  Y02D70/39

摘要： Broken links in a sensor network are avoided by representing the network as a DODAG. A rank associated with each node defines a position of each node relative to other nodes, and the rank is in a form of a proper fraction, and the rank of each node never increases to enable loop-free routing.

摘要翻译： 通过将网络表示为DODAG来避免传感器网络中的链路断开。 与每个节点相关联的等级定义每个节点相对于其他节点的位置，并且秩是适当分数的形式，并且每个节点的等级从不增加以实现无环路由。

公开(公告)号：US20120327792A1

公开(公告)日：2012-12-27

申请号：US13170005

申请日：2011-06-27

申请人： Jianlin Guo ,  Ghulam M. Bhatti ,  Philip Orlik ,  Jinyun Zhang

发明人： Jianlin Guo ,  Ghulam M. Bhatti ,  Philip Orlik ,  Jinyun Zhang

IPC分类号： H04L12/26

CPC分类号： H04W40/02 ,  H04L45/1283 ,  H04L45/18 ,  H04L45/24

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。

公开(公告)号：US20120163486A1

公开(公告)日：2012-06-28

申请号：US12979470

申请日：2010-12-28

申请人： Raymond Yim ,  Jianlin Guo ,  Philip Orlik ,  Jinyun Zhang

发明人： Raymond Yim ,  Jianlin Guo ,  Philip Orlik ,  Jinyun Zhang

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。

公开(公告)号：US20130223334A1

公开(公告)日：2013-08-29

申请号：US13404354

申请日：2012-02-24

申请人： Jianlin Guo ,  Philip Orlik ,  Jinyun Zhang ,  Ghulam M. Bhatti

发明人： Jianlin Guo ,  Philip Orlik ,  Jinyun Zhang ,  Ghulam M. Bhatti

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。

公开(公告)号：US20130114765A1

公开(公告)日：2013-05-09

申请号：US13291546

申请日：2011-11-08

申请人： Ramesh Annavajjala ,  Liangbin Li ,  Philip Orlik

发明人： Ramesh Annavajjala ,  Liangbin Li ,  Philip Orlik

IPC分类号： H04L27/06

CPC分类号： H04L5/0048 ,  H04J11/004 ,  H04L25/03171 ,  H04L27/2602 ,  H04L27/32 ,  H04L2025/03777

摘要： Interference in a received orthogonal frequency division multiplexing (OFDM) symbol, modulated according to selected constellation points Sk, is reduced. The symbol includes a set of pilot signals and a set of data signals yk, where k is a number of consecutive subcarriers used for the pilot and the data signals. The pilot signals are thresholded to detect interfering pilot signals, which are then erased. Channels Ĥk are estimated using remaining pilot signals. The set of data signals are decoded based on the estimated channels Ĥk, and, for each bit bi in the set of data signals, a logarithmic likely ratio (LLR) log  ∑ s k : b i = 0  1  y k - H ^ k  s k  2 ∑ s k : b i = 1  1  y k - H ^ k  s k  2 is determined. The LLR is an indicator of the likely interference.

摘要翻译： 根据选择的星座点Sk进行调制的接收正交频分复用（OFDM）符号中的干扰被减少。 符号包括一组导频信号和一组数据信号yk，其中k是用于导频和数据信号的连续副载波的数量。 导频信号被阈值以检测干扰导频信号，然后擦除导频信号。 使用剩余的导频信号估计信道Hk。 基于估计的信道H k解码数据信号组，并且对于数据信号组中的每个比特bi，存在对数可能比率（LLR）logΣΣΣKi：k = 2Σsk：2 LLR是可能的干扰的指标。