公开(公告)号：US07035677B2

公开(公告)日：2006-04-25

申请号：US10347897

申请日：2003-01-21

申请人： Philip Orlik ,  Zafer Sahinoglu ,  Jinyun Zhang

发明人： Philip Orlik ,  Zafer Sahinoglu ,  Jinyun Zhang

IPC分类号： H04B1/38

CPC分类号： H04B7/15557 ,  H04W52/0277 ,  H04W88/04 ,  Y02D70/22 ,  Y02D70/446

摘要： A system and method reduce power consumption in a multi-hop wireless communications network. A signal is received from a source node in an intermediate node. The signal includes a request to relay a message to a destination node. The request includes information on power requirements to relay the message either in a relay mode or a regeneration mode. If the available power at the intermediate node exceeds the power requirements, then the request is accepted. Either the relay mode or the regeneration mode is selected, based on criteria for retransmitting the message, and the message is then relayed to the destination node using the selected mode.

摘要翻译： 一种系统和方法降低了多跳无线通信网络的功耗。 从中间节点中的源节点接收信号。 该信号包括将消息中继到目的地节点的请求。 该请求包括关于在中继模式或再生模式下中继消息的功率需求的信息。 如果中间节点的可用功率超过功率要求，则接受该请求。 基于重发消息的标准来选择中继模式或再生模式，然后使用所选择的模式将消息中继到目的地节点。

公开(公告)号：US08245116B2

公开(公告)日：2012-08-14

申请号：US13007435

申请日：2011-01-14

申请人： Philip Orlik ,  Raymond Yim ,  Kieran Parsons ,  Vahid Tarokh ,  Jinyun Zhang

发明人： Philip Orlik ,  Raymond Yim ,  Kieran Parsons ,  Vahid Tarokh ,  Jinyun Zhang

IPC分类号： H03M13/00

CPC分类号： H03M13/136 ,  H03M13/3905 ,  H03M13/45 ,  H03M13/458 ,  H04L1/0054

摘要： Soft decision decoding of a codeword of a Reed-Muller (RM) code by selecting an optimal decomposition variable i using a likelihood calculation. A code RM(r, m) is expressed as {(u, uv)|uεRM(r, m−1) and vεRM(r−1, m−1)}, where uv denotes a component-wise multiplication of u and v, and (u, uv)=(r1, r2). A receive codeword is separated into r1=u and r2=uv based on the optimal decomposition variable, and r2 is decoded according to the optimal decomposition variable, using a RM(r−1, m−1) decoder to obtain a decoded v and a first set of decoded bits. The decoded v is combined with r1 using (r1+r2v)/2, and (r1+r2v)/2 is decoded using a RM(r, m−1) decoder to obtain a decoded u and a second set of decoded bits.

摘要翻译： 通过使用似然率计算选择最优分解变量i，对Reed-Muller（RM）码的码字进行软判决解码。 代码RM（r，m）表示为{（u，uv）| u＆egr; RM（r，m-1）和v＆egr; RM（r-1，m-1）}，其中uv表示分量 u和v的乘法，（u，uv）=（r1，r2）。 基于最优分解变量将接收码字分为r1 = u和r2 = uv，并使用RM（r-1，m-1）解码器根据最优分解变量对r2进行解码，以获得解码的v和 第一组解码位。 使用（r1 + r2v）/ 2将解码的v与r1组合，并且使用RM（r，m-1）解码器对（r1 + r2v）/ 2进行解码，以获得解码的u和第二组解码比特。

公开(公告)号：US20100165916A1

公开(公告)日：2010-07-01

申请号：US12347166

申请日：2008-12-31

申请人： Chunjie Duan ,  Jinyun Zhang ,  Philip Orlik

发明人： Chunjie Duan ,  Jinyun Zhang ,  Philip Orlik

IPC分类号： H04W84/00

CPC分类号： H04W24/04

摘要： A wireless network with a star topology includes a first central node, a second central node, wherein the first and second nodes are functionally equivalent. A set of leaf nodes are configured to communicate with either the first central node or the second central node via wireless links, depending whether the central nodes are active or inactive.

摘要翻译： 具有星形拓扑的无线网络包括第一中心节点和第二中央节点，其中第一节点和第二节点在功能上相当。 一组叶节点被配置为经由无线链路与第一中心节点或第二中央节点通信，这取决于中央节点是活动还是非活动。

公开(公告)号：US07023912B2

公开(公告)日：2006-04-04

申请号：US10223116

申请日：2002-08-19

申请人： Philip Orlik ,  Jinyun Zhang

发明人： Philip Orlik ,  Jinyun Zhang

IPC分类号： H04H7/30

CPC分类号： H04B10/6971

摘要： A method equalizes a received signal in an optical communications system. The received signal is passed through an analog delay line where it is tapped to generate a set of delayed copies of the received signal. In a set of analog multipliers, each delayed copy of the received signal is multiplied by a corresponding weight to generate a set of weighted signals that are then summed to produce an output signal. The output signal is thresholded and subtracted from the output signal to produce an error signal, which is periodically sampled. In a digital weight updating circuit, the weights are produced from digitized versions of the sampled error signal and samples of the delayed copies of the received signal.

摘要翻译： 一种在光通信系统中均衡接收信号的方法。 接收到的信号通过一个模拟延迟线，在该延迟线中，它被抽头以产生一组接收信号的延迟副本。 在一组模拟乘法器中，将接收信号的每个延迟副本乘以相应的权重以产生一组加权信号，然后将它们相加以产生输出信号。 输出信号被阈值化并从输出信号中减去，以产生周期性采样的误差信号。 在数字加权更新电路中，权重由采样误差信号的数字化版本和接收信号的延迟副本的采样产生。

公开(公告)号：US20050111428A1

公开(公告)日：2005-05-26

申请号：US10722031

申请日：2003-11-25

申请人： Philip Orlik ,  Zafer Sahinoglu ,  Jinyun Zhang

发明人： Philip Orlik ,  Zafer Sahinoglu ,  Jinyun Zhang

IPC分类号： H04B1/38 ,  H04B7/26 ,  H04L12/28 ,  H04L12/56

CPC分类号： H04W40/10 ,  H04L45/02 ,  H04L45/121 ,  H04W40/28 ,  H04W84/18 ,  Y02D30/20 ,  Y02D70/22 ,  Y02D70/326

摘要： An ad-hoc wireless communication network includes multiple nodes. Each node maintains a routing table. The routing table is constructed by broadcasting route request packets from a source node. The request packet includes an address of a destination node. Intermediate nodes in the network receiving the request packet, determine power and delay cost associated with the intermediate node participating in the route. If the cost is less than a threshold value, then the intermediate node participates in the routing of packets for other nodes. The intermediate node then sends a reply packet back to the source node. The reply packet includes the intermediate node addresses, as well as the power and delay costs. The source can thus construct the routing table. The source node can select a particular node for transferring application data packets based on either the power cost, the delay cost or both costs.

摘要翻译： 自组织无线通信网络包括多个节点。 每个节点维护路由表。 路由表是通过从源节点广播路由请求报文来构建的。 请求分组包括目的地节点的地址。 接收请求分组的网络中的中间节点确定与参与路由的中间节点相关联的功率和延迟成本。 如果成本小于阈值，则中间节点参与其他节点的分组路由。 然后，中间节点将回复分组发送回源节点。 应答包包括中间节点地址，以及功率和延迟成本。 因此，源可以构建路由表。 源节点可以基于电力成本，延迟成本或两者成本来选择用于传送应用数据分组的特定节点。

公开(公告)号：US08345808B2

公开(公告)日：2013-01-01

申请号：US12385078

申请日：2009-03-30

申请人： Zhenzhen Ye ,  Chunjie Duan ,  Philip Orlik ,  Jinyun Zhang

发明人： Zhenzhen Ye ,  Chunjie Duan ,  Philip Orlik ,  Jinyun Zhang

IPC分类号： H03D1/06

CPC分类号： H04J11/0066 ,  H04B1/719

摘要： An exemplary method is disclosed to accurately estimate the center frequency of a narrow-band interference (NBI). The exemplary method uses multi-stage autocorrelation-function (ACF) to estimate an NBI frequency. The exemplary method allows an accurate estimation of the center frequency of NBI in an Ultra-Wideband system. A narrow band interference (NBI) estimator based on such a method allows a low complexity hardware implementation. The exemplary method estimates the frequency in multiple stages. Each stage performs an ACF operation on the received signals. The first stage gives an initial estimation and the following stages refine the estimation. The results of all stages are combined to produce the final estimation. An apparatus based on such a multi-stage narrow band interference frequency detector is also disclosed to improve the accuracy by combining various filters with the detector.

摘要翻译： 公开了一种用于精确估计窄带干扰（NBI）的中心频率的示例性方法。 该示例性方法使用多级自相关函数（ACF）来估计NBI频率。 该示例性方法允许在超宽带系统中准确估计NBI的中心频率。 基于这种方法的窄带干扰（NBI）估计器允许低复杂度的硬件实现。 该示例性方法以多个阶段估计频率。 每个级对所接收的信号执行ACF操作。 第一阶段给出初步估计，并且以下阶段改进估计。 结合所有阶段的结果进行最终估计。 还公开了一种基于这种多级窄带干扰频率检测器的装置，通过将各种滤波器与检测器组合来提高精度。

公开(公告)号：US07414977B2

公开(公告)日：2008-08-19

申请号：US10722031

申请日：2003-11-25

申请人： Philip Orlik ,  Zafer Sahinoglu ,  Jinyun Zhang

发明人： Philip Orlik ,  Zafer Sahinoglu ,  Jinyun Zhang

IPC分类号： G08C17/00

CPC分类号： H04W40/10 ,  H04L45/02 ,  H04L45/121 ,  H04W40/28 ,  H04W84/18 ,  Y02D30/20 ,  Y02D70/22 ,  Y02D70/326

摘要： An ad-hoc wireless communication network includes multiple nodes. Each node maintains a routing table. The routing table is constructed by broadcasting route request packets from a source node. The request packet includes an address of a destination node. Intermediate nodes in the network receiving the request packet, determine power and delay cost associated with the intermediate node participating in the route. If the cost is less than a threshold value, then the intermediate node participates in the routing of packets for other nodes. The intermediate node then sends a reply packet back to the source node. The reply packet includes the intermediate node addresses, as well as the power and delay costs. The source can thus construct the routing table. The source node can select a particular node for transferring application data packets based on either the power cost, the delay cost or both costs.

摘要翻译： 自组织无线通信网络包括多个节点。 每个节点维护路由表。 路由表是通过从源节点广播路由请求报文来构建的。 请求分组包括目的地节点的地址。 接收请求分组的网络中的中间节点确定与参与路由的中间节点相关联的功率和延迟成本。 如果成本小于阈值，则中间节点参与其他节点的分组路由。 然后，中间节点将回复分组发送回源节点。 应答包包括中间节点地址，以及功率和延迟成本。 因此，源可以构建路由表。 源节点可以基于电力成本，延迟成本或两者成本来选择用于传送应用数据分组的特定节点。

公开(公告)号：US07330433B2

公开(公告)日：2008-02-12

申请号：US10376536

申请日：2003-02-28

申请人： Huai-Rong Shao ,  Chia Shen ,  Jinyun Zhang ,  Daqing Gu ,  Philip Orlik

发明人： Huai-Rong Shao ,  Chia Shen ,  Jinyun Zhang ,  Daqing Gu ,  Philip Orlik

IPC分类号： G06F11/00 ,  H04J3/14 ,  H04L1/00 ,  H04L12/28 ,  H04L12/56 ,  H04Q7/00

CPC分类号： H04L47/824 ,  H04L47/10 ,  H04L47/14 ,  H04L47/15 ,  H04L47/20 ,  H04L47/22 ,  H04L47/2416 ,  H04L47/2433 ,  H04L47/2441 ,  H04L47/283 ,  H04L47/50 ,  H04L47/522 ,  H04L47/564 ,  H04L47/624 ,  H04L47/6255 ,  H04L47/70 ,  H04L47/801 ,  H04L47/822 ,  H04L47/826 ,  H04L2012/6489 ,  H04W72/1226

摘要： A method allocates resources of a wireless communications network to traffic transmitted to user equipment over a channel of the network. A packet of the traffic to be stored in a selected queue is received. A maximum delay of the selected queue is determined, along with a start time, a finish time, and a queuing order. The packet is inserted in the selected queue according to the start time, the finish time and the queuing order, and then a weight of the selected queue is updated. Then, a next packet to be dequeued from the selected queue is scheduled, and the next packet is transmitted to the user equipment over the channel.

摘要翻译： 一种方法将无线通信网络的资源分配给通过网络的信道传输到用户设备的流量。 将接收要存储在所选队列中的流量的分组。 确定所选队列的最大延迟以及开始时间，完成时间和排队顺序。 根据开始时间，完成时间和排队顺序将数据包插入到所选择的队列中，然后更新所选队列的权重。 然后，调度从所选队列出队的下一个分组，并将下一个分组通过该信道发送给用户设备。

公开(公告)号：US06996368B2

公开(公告)日：2006-02-07

申请号：US10347896

申请日：2003-01-21

申请人： Philip Orlik ,  Zafer Sahinoglu ,  Jinyun Zhang

发明人： Philip Orlik ,  Zafer Sahinoglu ,  Jinyun Zhang

IPC分类号： H04B3/36 ,  H04B7/15

CPC分类号： H04W52/288 ,  H04L2001/0097 ,  H04W52/0277 ,  H04W52/20 ,  Y02D70/22

摘要： A method reduces power consumption in a multi-hop wireless communications network including a plurality of nodes. At a source node, a first power requirement for relaying a signal to a destination node through an intermediate node using an amplification mode is determined. A second power requirement for relaying the signal the destination node through the intermediate node using a regeneration mode is also determined at the source node. A relay request message is transmitted to the intermediate node, the relay request message including the first and second power requirements.

摘要翻译： 一种方法降低了包括多个节点的多跳无线通信网络中的功耗。 在源节点处，确定通过使用放大模式通过中间节点将信号中继到目的地节点的第一功率需求。 在源节点处也确定通过中继节点使用再生模式中继信号的目的节点的第二功率要求。 中继请求消息被发送到中间节点，中继请求消息包括第一和第二功率需求。

公开(公告)号：US09025471B2

公开(公告)日：2015-05-05

申请号：US12415578

申请日：2009-03-31

申请人： Neelesh B. Mehta ,  Koon Hoo Teo ,  Jinyun Zhang

发明人： Neelesh B. Mehta ,  Koon Hoo Teo ,  Jinyun Zhang

IPC分类号： H04B1/00 ,  H04B1/713 ,  H04B7/06 ,  H04B1/38

CPC分类号： H04B1/713 ,  H04B1/38 ,  H04B7/061

摘要： The embodiments of the invention describe a method for antenna selection in a wireless communication network. The network includes a transceiver having a set of antennas. The transceiver is configured to transmit a frequency-hopped sounding reference signal (SRS) over a subband from a subset of antennas at a time. The transceiver transmits the frequency-hopped SRS from subsets of antennas in the set of antennas alternately. In response to the transmitting, the transceiver receives information indicative of an optimal subset of antennas and transmits data from the optimal subset of antennas.

摘要翻译： 本发明的实施例描述了一种在无线通信网络中进行天线选择的方法。 该网络包括具有一组天线的收发器。 收发器被配置为一次从天线子集在子带上发射跳频探测参考信号（SRS）。 收发器交替地在天线集合中的天线子集中发送跳频SRS。 响应于发送，收发器接收指示天线的最佳子集的信息，并从最佳天线子集发射数据。