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1. 发明授权

US08634714B2 Methods for determining energy efficient optical routes 有权
标题翻译：确定节能光路的方法
公开(公告)号：US08634714B2
公开(公告)日：2014-01-21
申请号：US12984977
申请日：2011-01-05
申请人： Raymond Yim , Kieran Parsons
发明人： Raymond Yim , Kieran Parsons
IPC分类号： H04L12/00 , H04L12/56
CPC分类号： H04L49/357 , H04J14/0206 , H04J14/0254 , H04J14/0267 , H04J14/0268 , H04J14/0284 , H04J2203/0058 , Y02D30/20
摘要： An optical network includes multiple source, cross connect, and destination nodes. A traffic demand matrix is constructed for each possible pair of combinations of the source nodes and the destination nodes. A first energy reduction metric is determined for creating the bypass between the source node and any XC node based on the traffic demand matrix, and a second energy reduction metric is determined for creating the bypass between any XC node and the destination node using the traffic demand matrix. Then, a bypass that terminates at one of the XC nodes that has a largest energy reduction metric is created.
摘要翻译：光网络包括多个源，交叉连接和目的节点。为源节点和目的节点的每个可能的组合组合构建业务需求矩阵。确定用于基于业务需求矩阵在源节点和任何XC节点之间创建旁路的第一能量减少度量，并且确定用于使用业务需求在任何XC节点和目的地节点之间创建旁路的第二能量减少度量矩阵。然后，创建一个在具有最大能量减少度量的XC节点之一终止的旁路。

2. 发明授权

US08228883B2 Method and network for transmitting data in a wireless network with fixed transmission intervals 有权
标题翻译：用于以固定的传输间隔在无线网络中传输数据的方法和网络
公开(公告)号：US08228883B2
公开(公告)日：2012-07-24
申请号：US12651517
申请日：2010-01-04
申请人： Raymond Yim , Zhifeng Tao , Zafer Sahinoglu , Man-On Pun
发明人： Raymond Yim , Zhifeng Tao , Zafer Sahinoglu , Man-On Pun
IPC分类号： H04W4/00 , H04W72/00
CPC分类号： H04W72/121 , H04B7/15592 , H04B7/2606 , H04W84/047 , H04W84/18
摘要： A wireless network master node periodically broadcasts beacons that specify a structure of a following fixed length superframe. Slave nodes determine a channel condition between each slave and the master. Then, the set of slaves is partitioned into subsets of slaves according to the channel conditions. The master assigns, to each slave, a transmission rate in a low to high order according to the channel conditions, and the slaves transmit data to the master in the low to high order between two consecutive beacons, wherein the subsets of slaves with a higher transmission rate also receive the data from the subsets of slaves with a lower transmission rate, and wherein a slave with a higher transmission rate includes a part of or all the data from a slave with a lower transmission rate.
摘要翻译：无线网络主节点周期性地广播指定以下固定长度超帧的结构的信标。从节点确定每个从站和主站之间的通道状态。然后，根据信道条件将从属单元划分成从属子集。主设备根据信道条件将从低到高的传输速率分配给每个从站，并且从站在两个连续的信标之间以低到高顺序向主设备发送数据，其中具有较高的从站的子集传输速率还从具有较低传输速率的从属子集接收数据，并且其中具有较高传输速率的从机包括来自具有较低传输速率的从机的部分或全部数据。

3. 发明申请

US20120170684A1 Method and System for Decoding OFDM Signals Subject to Narrowband Interference 有权
标题翻译：用于解码窄带干扰的OFDM信号的方法和系统
公开(公告)号：US20120170684A1
公开(公告)日：2012-07-05
申请号：US12982636
申请日：2010-12-30
申请人： Raymond Yim , Amitav Mukherjee , Philip V. Orlik , Chunjie Duan , Jinyun Zhang
发明人： Raymond Yim , Amitav Mukherjee , Philip V. Orlik , Chunjie Duan , Jinyun Zhang
IPC分类号： H04B1/06
CPC分类号： H04L25/0204 , H04L25/0228 , H04L25/03159
摘要： A method estimates a wireless channel at a receiver. The signal is transmitted using narrowband orthogonal frequency division demultiplexing (OFDM) and frequency subcarriers, and the signal includes a set of data tones and a set of pilot tones. The channel and pilot tone interference are estimated based on all the pilot tones extracted from the signal and a channel model. The set of data are equalized based on the channel estimate. Data interference is detected according to the pilot interference and the equalized data tones. Subcarrier interference-to-noise ratios are determined based on the data interference. Signal strengths of the data tones are determined based on the equalized data tones, log-likelihood ratios of bits represented by the data tones are determined based on the subcarrier interference-to-noise ratios and the signal strength of the data tones.
摘要翻译：一种方法估计接收机处的无线信道。该信号使用窄带正交频分解复用（OFDM）和频率副载波来发送，并且该信号包括一组数据音调和一组导频音。基于从信号提取的所有导频音和信道模型来估计信道和导频音干扰。该数据集合基于信道估计来均衡。根据导频干扰和均衡数据音调检测数据干扰。基于数据干扰确定子载波干扰噪声比。基于均衡的数据音调确定数据音调的信号强度，基于副载波干扰信噪比和数据音调的信号强度来确定由数据音调表示的比特的对数似然比。

4. 发明授权

US08139668B2 Unified STTC encoder for WAVE transceivers 失效
标题翻译：用于WAVE收发器的统一STTC编码器
公开(公告)号：US08139668B2
公开(公告)日：2012-03-20
申请号：US12503465
申请日：2009-07-15
申请人： Philip V. Orlik , Lu Zhang , Raymond Yim , Jinyun Zhang
发明人： Philip V. Orlik , Lu Zhang , Raymond Yim , Jinyun Zhang
IPC分类号： H04L5/12 , H04B7/02 , H03C7/02
CPC分类号： H04L1/065 , H04L1/0003 , H04L25/0212 , H04L25/0226
摘要： A transmitter encodes an input bitstream using space-time trellis coding (STTC). The encoder includes a serial to parallel convertor to produce a first and second output bitstreams. First and second three bit shift registers are connected to produce first and second output bitstreams. A multiplier applies a code generating weight to each bit of the shift registers to encode the bitstreams. A first switch is connected between a last bit of the first shift register and a first bit of the second shift register. A second switch is connected between the second output and the first bit of the second shift register. The first set of encoded bit streams and the second set of encoded bitstreams are combined and mapped to a frequency domain.
摘要翻译：发射机使用空时网格编码（STTC）对输入比特流进行编码。编码器包括串行到并行转换器以产生第一和第二输出比特流。连接第一和第二三位移位寄存器以产生第一和第二输出比特流。乘法器将代码生成权重应用于移位寄存器的每个位以对比特流进行编码。第一开关连接在第一移位寄存器的最后位和第二移位寄存器的第一位之间。第二开关连接在第二输出端和第二移位寄存器的第一位之间。第一组编码比特流和第二组编码比特流被组合并映射到频域。

5. 发明授权

US08023915B2 Beamforming in wireless vehicular networks 有权
标题翻译：无线车载网络中的波束成形
公开(公告)号：US08023915B2
公开(公告)日：2011-09-20
申请号：US12413868
申请日：2009-03-30
申请人： Philip V. Orlik , Raymond Yim , Ramesh Annavajjala , Jinyun Zhang
发明人： Philip V. Orlik , Raymond Yim , Ramesh Annavajjala , Jinyun Zhang
IPC分类号： H04B1/06 , H04B7/00
CPC分类号： H04B7/0617 , H04B7/086
摘要： Beams are used to communicate in a wireless network including mobile and stationary receivers. The network operates according to the IEEE 802.11p in wireless access to vehicular environments (WAVE). A direction from the mobile transceiver to the stationary receiver is predicted using geographic information available to the mobile transceiver. A set of signals are received in the mobile transceiver from the stationary transceiver, wherein the signals are received by an array of antennas, and wherein the signals are received using a set of beams, and wherein each beam is approximately directed at the stationary receiver. A signal-to-noise ratio (SNR) is measured for each beam, and the beam with an optimal SNR is selected as an optimal beam for communicating data between the mobile transceiver and the stationary transceiver.
摘要翻译：光束用于在包括移动和固定接收机的无线网络中进行通信。该网络根据IEEE 802.11p在无线接入车辆环境（WAVE）中运行。使用可用于移动收发机的地理信息来预测从移动收发机到固定接收机的方向。在固定收发器中的移动收发器中接收一组信号，其中信号由天线阵列接收，并且其中使用一组波束接收信号，并且其中每个波束近似地指向固定接收机。测量每个波束的信噪比（SNR），并且选择具有最佳SNR的波束作为用于在移动收发器和固定收发器之间传送数据的最佳波束。

6. 发明申请

US20110194452A1 Transmitting Data with Multiple Priorities as OFDM Symbols 审中-公开
标题翻译：以多重优先级发送数据作为OFDM符号
公开(公告)号：US20110194452A1
公开(公告)日：2011-08-11
申请号：US13092562
申请日：2011-04-22
申请人： Philip Orlik , Raymond Yim , Chunjie Duan , Jinyun Zhang
发明人： Philip Orlik , Raymond Yim , Chunjie Duan , Jinyun Zhang
IPC分类号： H04L12/26 , H04L12/56
CPC分类号： H04N19/615 , H04N19/105 , H04N19/13 , H04N19/46 , H04N19/597 , H04N19/61 , H04N19/63
摘要： A transmitter transmits data having a set of two or more priorities on subcarriers using orthogonal frequency division multiplexing (OFDM) symbols. The transmitter includes a media access (MAC) layer, wherein the MAC layer further includes a queue for storing data at each priority, a rate control block connected to each queue, and a physical (PHY) layer. The PHY layer further includes a channel coder for each priority, wherein each channel coder is connected to the corresponding queue to receive data, and to the rate control block to send coding information.
摘要翻译：发射机使用正交频分复用（OFDM）符号在子载波上发射具有两个或更多个优先级集合的数据。所述发射机包括媒体接入（MAC）层，其中所述MAC层还包括用于存储每个优先级的数据的队列，连接到每个队列的速率控制块以及物理（PHY）层。 PHY层还包括用于每个优先级的信道编码器，其中每个信道编码器连接到对应的队列以接收数据，并且连接到速率控制块以发送编码信息。

7. 发明申请

US20100208690A1 Fast Handover Protocols for Wimax Networks 有权
标题翻译： 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
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。

8. 发明申请

US20100097985A1 Method for Randomly Accessing a Wireless Network 审中-公开
标题翻译：随机访问无线网络的方法
公开(公告)号：US20100097985A1
公开(公告)日：2010-04-22
申请号：US12402459
申请日：2009-03-11
申请人： Philip V. Orlik , Raymond Yim , Andreas F. Molisch , Zhifeng Tao
发明人： Philip V. Orlik , Raymond Yim , Andreas F. Molisch , Zhifeng Tao
IPC分类号： H04W40/00
CPC分类号： H04W74/002 , H04W74/0833
摘要： In a wireless network including a base station (BS) and a set of mobile stations (MS), a MS transmits a ranging request message to the BS, using random access, when the MS enters the cell. The ranging request message includes request MS specific information for identifying the MS. The MS receives a ranging response message broadcast from the BS, which includes response MS specific information, request and response specific information to determine whether the BS received the request, or whether a collision occurred.
摘要翻译：在包括基站（BS）和一组移动站（MS）的无线网络中，当MS进入小区时，MS使用随机接入向BS发送测距请求消息。测距请求消息包括用于识别MS的请求MS特定信息。 MS接收从BS广播的测距响应消息，其包括响应MS特定信息，请求和响应特定信息，以确定BS是否接收到请求，还是发生冲突。

9. 发明申请

US20080031250A1 Energy accumulation in destination nodes of wireless relay networks 审中-公开
标题翻译：无线中继网络目的地节点的能量积累
公开(公告)号：US20080031250A1
公开(公告)日：2008-02-07
申请号：US11497987
申请日：2006-08-01
申请人： Neelesh B. Mehta , Raymond Yim , Andreas F. Molisch , Jinyun Zhang
发明人： Neelesh B. Mehta , Raymond Yim , Andreas F. Molisch , Jinyun Zhang
IPC分类号： H04L12/56
CPC分类号： H04L45/24 , H04L1/08 , H04L2001/0096 , H04W40/02 , Y02D30/20 , Y02D70/22 , Y02D70/30
摘要： A method for transmitting packets from a source node to a destination node via relay nodes of a wireless network. Packets are transmitted from the source node, along a route of relays nodes, to the destination node in a wireless network. Energy of the packets is accumulated only in the destination node by storing multiple versions of the packet. The packets are decoded in the destination node using the accumulated energy.
摘要翻译：一种用于经由无线网络的中继节点从源节点向目的地节点发送分组的方法。分组从源节点沿着中继节点的路由发送到无线网络中的目的地节点。通过存储分组的多个版本，分组的能量仅在目的地节点中累积。使用累积的能量在目的地节点中解码分组。

10. 发明授权

US08565214B2 Method for scheduling data transmission in hybrid communication networks for transportation safety systems 有权
标题翻译：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
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。

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