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：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：US20100248637A1

公开(公告)日：2010-09-30

申请号：US12502829

申请日：2009-07-14

申请人： Zafer Sahinoglu ,  Ghulam M. Bhatti ,  Jinyun Zhang

发明人： Zafer Sahinoglu ,  Ghulam M. Bhatti ,  Jinyun Zhang

IPC分类号： H04B17/00

CPC分类号： H04W64/00 ,  G01S5/0289 ,  H04W84/18

摘要： A method localizes a set of nodes in a wireless network that includes a target node having unknown location and a set of anchor nodes having known locations. The set of anchor nodes is partitioned into subsets of anchor nodes, wherein each subset has at least three anchor nodes. A distance from the target node to each of anchor nodes in each subset is measured, to estimate possible locations of the target node. A geometric constraint is applied to each estimated location to determine valid locations, which are then filtered to determine filtered locations. The filtered locations are averaged to determine an initial estimate of the location.

摘要翻译： 一种方法将无线网络中的一组节点定位，其包括具有未知位置的目标节点和具有已知位置的一组锚节点。 锚节点集合被划分为锚节点的子集，其中每个子集具有至少三个锚节点。 测量从目标节点到每个子集中每个锚节点的距离，以估计目标节点的可能位置。 将几何约束应用于每个估计位置以确定有效位置，然后将其过滤以确定过滤的位置。 对经滤波的位置进行平均以确定位置的初始估计。

公开(公告)号：US07924766B2

公开(公告)日：2011-04-12

申请号：US11845864

申请日：2007-08-28

申请人： Zafer Sahinoglu ,  Ghulam M. Bhatti ,  Jinyun Zhang

发明人： Zafer Sahinoglu ,  Ghulam M. Bhatti ,  Jinyun Zhang

IPC分类号： H04B7/212

CPC分类号： H04W74/02

摘要： A method and system access a channel in a wireless network of nodes. A coordinator transmits periodically a beacon, in which time between two consecutive beacons constitute a beacon interval. The coordinator and other nodes transceive a superframe during the beacon interval, in which the superframe begins with an active interval, which is immediately followed by an inactive interval, and in which the active interval begins with a contention free period, which is immediately followed by a contention access period, which is immediately followed by the inactive interval.

摘要翻译： 方法和系统访问节点无线网络中的信道。 协调器周期性地发送信标，其中两个连续信标之间的时间构成信标间隔。 协调器和其他节点在信标间隔期间收发超帧，其中超帧以活动间隔开始，紧接着是非活动间隔，并且其中活动间隔以无竞争周期开始，紧随其后的是 争用访问期间，紧随其后的是非活动间隔。

公开(公告)号：US08054226B2

公开(公告)日：2011-11-08

申请号：US12502829

申请日：2009-07-14

申请人： Zafer Sahinoglu ,  Ghulam M. Bhatti ,  Jinyun Zhang

发明人： Zafer Sahinoglu ,  Ghulam M. Bhatti ,  Jinyun Zhang

IPC分类号： G01S3/02

CPC分类号： H04W64/00 ,  G01S5/0289 ,  H04W84/18

摘要： A method localizes a set of nodes in a wireless network that includes a target node having unknown location and a set of anchor nodes having known locations. The set of anchor nodes is partitioned into subsets of anchor nodes, wherein each subset has at least three anchor nodes. A distance from the target node to each of anchor nodes in each subset is measured, to estimate possible locations of the target node. A geometric constraint is applied to each estimated location to determine valid locations, which are then filtered to determine filtered locations. The filtered locations are averaged to determine an initial estimate of the location.

摘要翻译： 一种方法将无线网络中的一组节点定位，其包括具有未知位置的目标节点和具有已知位置的一组锚节点。 锚节点集合被划分为锚节点的子集，其中每个子集具有至少三个锚节点。 测量从目标节点到每个子集中每个锚节点的距离，以估计目标节点的可能位置。 将几何约束应用于每个估计位置以确定有效位置，然后将其过滤以确定过滤的位置。 对经滤波的位置进行平均以确定位置的初始估计。

公开(公告)号：US20080253328A1

公开(公告)日：2008-10-16

申请号：US11845864

申请日：2007-08-28

申请人： Zafer Sahinoglu ,  Ghulam M. Bhatti ,  Jinyun Zhang

发明人： Zafer Sahinoglu ,  Ghulam M. Bhatti ,  Jinyun Zhang

IPC分类号： H04Q7/00

CPC分类号： H04W74/02

摘要： A method and system access a channel in a wireless network of nodes. A coordinator transmits periodically a beacon, in which time between two consecutive beacons constitute a beacon interval. The coordinator and other nodes transceive a superframe during the beacon interval, in which the superframe begins with an active interval, which is immediately followed by an inactive interval, and in which the active interval begins with a contention free period, which is immediately followed by a contention access period, which is immediately followed by the inactive interval.

摘要翻译： 方法和系统访问节点无线网络中的信道。 协调器周期性地发送信标，其中两个连续信标之间的时间构成信标间隔。 协调器和其他节点在信标间隔期间收发超帧，其中超帧以活动间隔开始，紧接着是非活动间隔，并且其中活动间隔以无竞争周期开始，紧随其后的是 争用访问期间，紧随其后的是非活动间隔。

公开(公告)号：US20100208690A1

公开(公告)日：2010-08-19

申请号：US12370750

申请日：2009-02-13

申请人： Jianlin Guo ,  Raymond Yim ,  Jinyun Zhang

发明人： Jianlin Guo ,  Raymond Yim ,  Jinyun Zhang

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。

公开(公告)号：US08565214B2

公开(公告)日：2013-10-22

申请号：US12979777

申请日：2010-12-28

申请人： Jianlin Guo ,  Raymond Yim ,  Jinyun Zhang ,  Philip V. Orlik ,  Chunjie Duan ,  Frederick J Igo, Jr.

发明人： Jianlin Guo ,  Raymond Yim ,  Jinyun Zhang ,  Philip V. Orlik ,  Chunjie Duan ,  Frederick J Igo, Jr.

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。

公开(公告)号：US20120147864A1

公开(公告)日：2012-06-14

申请号：US12964283

申请日：2010-12-09

申请人： Jianlin Guo ,  Raymond Yim ,  Philip V. Orlik ,  Frederick J. Igo, JR. ,  Chunjie Duan ,  Jinyun Zhang

发明人： Jianlin Guo ,  Raymond Yim ,  Philip V. Orlik ,  Frederick J. Igo, JR. ,  Chunjie Duan ,  Jinyun Zhang

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。

公开(公告)号：US08418813B2

公开(公告)日：2013-04-16

申请号：US12950683

申请日：2010-11-19

申请人： Raymond Yim ,  Philip V. Orlik ,  Chunjie Duan ,  Jinyun Zhang ,  Jianlin Guo ,  Frederick J Igo, Jr.

发明人： Raymond Yim ,  Philip V. Orlik ,  Chunjie Duan ,  Jinyun Zhang ,  Jianlin Guo ,  Frederick J Igo, Jr.

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。