公开(公告)号：US07092726B2

公开(公告)日：2006-08-15

申请号：US10747377

申请日：2003-12-29

申请人： Qicai Shi ,  Neiyer S. Correal ,  Paul E. Gorday ,  Spyros Kyperountas ,  Feng Niu

发明人： Qicai Shi ,  Neiyer S. Correal ,  Paul E. Gorday ,  Spyros Kyperountas ,  Feng Niu

IPC分类号： H04Q7/20

CPC分类号： H04W64/00 ,  G01S5/02 ,  G01S5/0289

摘要： A method and system is provided for determining a location for each of a plurality of units, which is selected from one of multiple sets of locations, which are each estimated based upon different initial location estimates. The selected set of locations includes the set which has the minimum error value, where the error value is based on the aggregate of the differences between the range determined from the estimated locations and the measured range. By using different sets of initial location estimates, there is a greater chance that at least one of the sets of initial location estimates will avoid any local minimums and produce a more accurate estimate of unit locations.

摘要翻译： 提供了一种方法和系统，用于确定多个单元中的每一个的位置，所述单元从多个位置集合中的一个组中选择，每个单元基于不同的初始位置估计来估计。 所选择的一组位置包括具有最小误差值的集合，其中误差值基于从估计位置确定的范围与测量范围之间的差异的总和。 通过使用不同的初始位置估计集合，初始位置估计集合中的至少一个将避免任何局部最小值并且对单位位置产生更准确的估计的可能性更大。

公开(公告)号：US07274940B2

公开(公告)日：2007-09-25

申请号：US10747378

申请日：2003-12-29

申请人： Spyros Kyperountas ,  Oleg Andric ,  Neiyer S. Correal ,  Jian Huang ,  Feng Niu ,  Qicai Shi

发明人： Spyros Kyperountas ,  Oleg Andric ,  Neiyer S. Correal ,  Jian Huang ,  Feng Niu ,  Qicai Shi

IPC分类号： H04Q7/20

CPC分类号： G01S5/0289

摘要： A method and system is provided for determining a location for each of a plurality of units, which are sub-divided into more than one sub-net groupings, that each include two or more units. Within each sub-net grouping, measured range information between units within the sub-nets and one or more reference units is gathered in at least a selected one of the units. The selected one of the units then estimates a location for each of the units, which minimizes any error in the measured ranges between the units in each of the corresponding sub-nets.

摘要翻译： 提供了一种方法和系统，用于确定多个单元中的每个单元的位置，其被细分为多于一个子网分组，每个单元包括两个或多个单元。 在每个子网分组内，子网内的单元和一个或多个参考单元之间的测量范围信息被收集在至少一个所选单元中。 所选择的一个单元然后估计每个单元的位置，这使得每个相应子网中的单元之间的测量范围中的任何误差最小化。

公开(公告)号：US07548517B2

公开(公告)日：2009-06-16

申请号：US11113637

申请日：2005-04-25

申请人： Spyros Kyperountas ,  Neiyer S. Correal ,  Feng Niu ,  Qicai Shi

发明人： Spyros Kyperountas ,  Neiyer S. Correal ,  Feng Niu ,  Qicai Shi

IPC分类号： G01R31/08

CPC分类号： G01S5/0289 ,  H04B17/318 ,  H04B17/391 ,  H04W64/00

摘要： A location technique is utilized where channel-model parameters are originally estimated prior to location taking place. Location then takes place using a first set of known-located nodes, and the channel-model parameters are updated based on the distances resulting from the location estimate. Once the channel-model parameters have been updated, location again takes place using a second set of known-located nodes, node distances are calculated based on the produced locations and the channel-model parameters are again updated. This process continues until no significant change is observed between the previous and the newly estimated location, or until a maximum number of iterations is reached.

摘要翻译： 在位置发生之前，最初估计信道模型参数的位置技术被使用。 然后使用第一组已知定位的节点进行位置，并且基于由位置估计导致的距离来更新频道模型参数。 一旦信道模型参数被更新，再次使用第二组已知定位的节点进行位置，则基于所产生的位置来计算节点距离，并再次更新信道模型参数。 该过程继续进行，直到在先前和新估计的位置之间没有观察到显着变化，或直到达到最大次数。

公开(公告)号：US07242947B2

公开(公告)日：2007-07-10

申请号：US10743961

申请日：2003-12-23

申请人： Feng Niu ,  Spyros Kyperountas ,  Frederick L. Martin ,  Jian Huang ,  Qicai Shi ,  Timothy Bancroft ,  Neiyer S. Correal

发明人： Feng Niu ,  Spyros Kyperountas ,  Frederick L. Martin ,  Jian Huang ,  Qicai Shi ,  Timothy Bancroft ,  Neiyer S. Correal

IPC分类号： H04Q7/20

CPC分类号： G01S5/14 ,  G01S5/02 ,  G01S5/0289 ,  G06Q10/087 ,  H04W8/18 ,  H04W64/00

摘要： A method and location determination module is provided for determining a location of one of a plurality of units using neighbor lists. Each unit is communicatively coupled to at least some of the other plurality of units, where at least some of the plurality of units are reference units, whose locations are known. The units communicate with other nearby units within communication range, to establish neighbor lists. A unit to be located then identifies an aggregate value corresponding to the number of occurrences of the reference units in the neighbor list of the unit to be located and the neighbor lists of each of a group of associated units. The location of the unit to be located is then determined, based upon the known locations of the reference units and the number of identified occurrences of the reference units in the corresponding neighbor lists.

摘要翻译： 提供了一种方法和位置确定模块，用于使用邻居列表来确定多个单元中的一个单元的位置。 每个单元通信地耦合到其他多个单元中的至少一些，其中多个单元中的至少一些是参考单元，其位置是已知的。 单位与通信范围内的其他附近单位进行通信，建立邻居列表。 然后，要定位的单元识别与要定位的单元的邻居列表中的参考单元的出现次数和一组关联单元中的每一个的邻居列表相对应的聚合值。 然后，基于参考单元的已知位置和相应邻居列表中的参考单元的识别出现次数来确定要定位的单元的位置。

公开(公告)号：US08306561B2

公开(公告)日：2012-11-06

申请号：US12363855

申请日：2009-02-02

申请人： Spyros Kyperountas ,  Neiyer S. Correal ,  Qicai Shi

发明人： Spyros Kyperountas ,  Neiyer S. Correal ,  Qicai Shi

IPC分类号： H04B7/00

CPC分类号： H04W72/02 ,  H04W16/14 ,  H04W48/16

摘要： A method, wireless device, and information processing system dynamically update spectrum sensing groups in a wireless communication system. A set of wireless devices (114) currently allocated to a spectrum sensing group is identified. Each wireless device (114, 116, 118) in the set performs spectrum sensing on one or more wireless communication channels. Spectrum sensing performance data (144) is analyzed for each such wireless device (114) in the set. The spectrum sensing performance data (144) indicates wireless communication performance of a wireless device (114) associated with the spectrum sensing performance data with respect to detecting a transmitted signal on the one or more communication channels. Wireless device membership of the set of wireless devices (114, 116, 118) allocated to the spectrum sensing group is dynamically adjusted based on the analysis.

摘要翻译： 方法，无线设备和信息处理系统在无线通信系统中动态地更新频谱感测组。 识别当前分配给频谱感测组的一组无线设备（114）。 集合中的每个无线设备（114,116,118）在一个或多个无线通信信道上执行频谱感测。 对集合中的每个这样的无线设备（114）分析频谱感测性能数据（144）。 频谱感测性能数据（144）指示与频谱感测性能数据相关联的无线设备（114）的无线通信性能，用于检测一个或多个通信信道上的发送信号。 基于分析动态调整分配给频谱感测组的无线设备（114,116,118）的无线设备成员资格。

公开(公告)号：US09031526B2

公开(公告)日：2015-05-12

申请号：US13527006

申请日：2012-06-19

申请人： Spyros Kyperountas ,  Neiyer S. Correal ,  Qicai Shi ,  Charles L. Sobchak

发明人： Spyros Kyperountas ,  Neiyer S. Correal ,  Qicai Shi ,  Charles L. Sobchak

IPC分类号： H04B1/10 ,  H04B1/12 ,  H04J11/00

CPC分类号： H04B1/10 ,  H04B1/1027 ,  H04B1/12 ,  H04J11/0066

摘要： A communication device includes a receiver that is capable of canceling in-channel interference. The receiver includes an antenna for receiving a wireless signal comprising in-channel components and an out-of-channel component, wherein the in-channel components comprise a desired component and an in-channel interference component. A first filter of the receiver filters the wireless signal by blocking at least a portion of the out-of-channel component to produce a first signal comprising the in-channel components, and at least a second filter of the receiver filters the wireless signal by blocking at least a portion of the in-channel components to produce a second signal comprising the out-of-channel component. An in-channel interference estimator of the receiver generates an in-channel interference estimation signal based on the second signal. And a combiner of the filter combines the first signal and the second signal to at least partially cancel the in-channel interference component of the first signal.

摘要翻译： 通信设备包括能够消除信道内干扰的接收机。 接收机包括用于接收包括信道内分量和信道外分量的无线信号的天线，其中信道内分量包括期望分量和信道内干扰分量。 接收机的第一滤波器通过阻挡信道外分量的至少一部分来产生包括信道内分量的第一信号来对无线信号进行滤波，并且接收器的至少第二滤波器通过 阻塞信道内分量的至少一部分以产生包括信道外分量的第二信号。 接收机的信道内干扰估计器基于第二信号产生信道内干扰估计信号。 并且滤波器的组合器组合第一信号和第二信号以至少部分地消除第一信号的信道内干扰分量。

公开(公告)号：US08837636B2

公开(公告)日：2014-09-16

申请号：US13601379

申请日：2012-08-31

申请人： Qicai Shi ,  Neiyer S. Correal ,  Spyros Kyperountas

发明人： Qicai Shi ,  Neiyer S. Correal ,  Spyros Kyperountas

IPC分类号： H04L25/49

CPC分类号： H04L25/03828 ,  H04L5/0066 ,  H04L27/2602 ,  H04L27/2634

摘要： A wireless communication device is provided that is capable of suppressing out-of-channel emissions. The wireless communication device includes an upsampled broadband multicarrier signal generator and multiple upsampled sidelobe signal generators. The upsampled broadband multicarrier signal generator receives a symbol stream and, based on the symbol stream, generates a broadband multicarrier signal comprising an in-channel signal and a first multiple out-of-channel sidelobes. Each upsampled sidelobe signal generator of the multiple upsampled sidelobe signal generators receives at least a portion of the symbol stream and, based on at least a portion of the symbol stream, generates an out-of-channel sidelobes to produce a second multiple out-of-channel sidelobes. The wireless communication device further includes a combiner that combines the broadband multicarrier signal and the second multiple out-of-channel sidelobes to at least partially suppress first multiple out-of-channel sidelobes of the broadband multicarrier signal.

摘要翻译： 提供能够抑制通道外发射的无线通信装置。 无线通信设备包括上采样宽带多载波信号发生器和多个上采样旁瓣信号发生器。 上采样的宽带多载波信号发生器接收符号流，并且基于符号流生成包括信道内信号和第一多个非通道外旁瓣的宽带多载波信号。 多个上采样旁瓣信号发生器的每个上采样旁瓣信号发生器接收符号流的至少一部分，并且基于符号流的至少一部分产生通道外旁瓣以产生第二多个 通道旁瓣。 无线通信设备还包括组合器，其组合宽带多载波信号和第二多个信道外旁瓣以至少部分地抑制宽带多载波信号的第一多个频道外旁瓣。

公开(公告)号：US07570927B2

公开(公告)日：2009-08-04

申请号：US11424622

申请日：2006-06-16

申请人： Neiyer S. Correal ,  Spyros Kyperountas ,  Qicai Shi

发明人： Neiyer S. Correal ,  Spyros Kyperountas ,  Qicai Shi

IPC分类号： H04B3/36 ,  H04B1/38 ,  H04B7/14 ,  H04M11/00

CPC分类号： H04W64/00 ,  H04W4/02 ,  H04W4/20 ,  H04W84/18 ,  H04W88/04

摘要： A wireless communication system and method for determination of the location of a location-incapable device of a decentralized wireless communication network. Upon receipt of location determination information, relevant to the location of the location-incapable device in the network and sufficient to perform a calculation of the location of the location-incapable device, a location-capable device of the network may calculate the location of the location-incapable device and make this information available to one or more devices of the network.

摘要翻译： 一种用于确定分散无线通信网络的无位置设备的位置的无线通信系统和方法。 在接收到与位置无关装置在网络中的位置相关并且足以执行无位置装置的位置的计算的位置确定信息时，网络的位置能力装置可以计算出 位置无关的设备，并使该信息可用于网络的一个或多个设备。

公开(公告)号：US20100081387A1

公开(公告)日：2010-04-01

申请号：US12241019

申请日：2008-09-29

申请人： Qicai Shi ,  Neiyer S. Correal ,  Spyros Kyperountas ,  Zhuan Ye

发明人： Qicai Shi ,  Neiyer S. Correal ,  Spyros Kyperountas ,  Zhuan Ye

IPC分类号： H04B17/00

CPC分类号： H04B17/318

摘要： A cognitive radio wireless device (114) dynamically manages signal detection in a cognitive radio system (100). Spectrum sensing is performed for a first sensing frame on at least one communication channel. At least one observed signal is received (204) on the at least one communication channel. A detection decision (210) is performed to determine if the observed signal is noise or an active signal associated with an active user. The detection decision (210) is performed by comparing observed signal energy estimation with a current detection threshold. The current detection threshold can be an arbitrarily defined threshold or a detection threshold based on a previous detection decision for a sensing frame immediately prior to the first sensing frame.

摘要翻译： 认知无线电无线设备（114）动态地管理认知无线电系统（100）中的信号检测。 对至少一个通信信道上的第一感测帧执行频谱感测。 在至少一个通信信道上接收至少一个观察信号（204）。 执行检测决定（210）以确定观察到的信号是否是噪声或与活动用户相关联的活动信号。 通过将观测信号能量估计与电流检测阈值进行比较来执行检测决定（210）。 根据紧接在第一感测帧之前的感测帧的先前检测判定，当前检测阈值可以是任意定义的阈值或检测阈值。

公开(公告)号：US08140017B2

公开(公告)日：2012-03-20

申请号：US12241019

申请日：2008-09-29

申请人： Qicai Shi ,  Neiyer S. Correal ,  Spyros Kyperountas ,  Zhuan Ye

发明人： Qicai Shi ,  Neiyer S. Correal ,  Spyros Kyperountas ,  Zhuan Ye

IPC分类号： H04B17/00

CPC分类号： H04B17/318

摘要： A cognitive radio wireless device (114) dynamically manages signal detection in a cognitive radio system (100). Spectrum sensing is performed for a first sensing frame on at least one communication channel. At least one observed signal is received (204) on the at least one communication channel. A detection decision (210) is performed to determine if the observed signal is noise or an active signal associated with an active user. The detection decision (210) is performed by comparing observed signal energy estimation with a current detection threshold. The current detection threshold can be an arbitrarily defined threshold or a detection threshold based on a previous detection decision for a sensing frame immediately prior to the first sensing frame.

摘要翻译： 认知无线电无线设备（114）动态地管理认知无线电系统（100）中的信号检测。 对至少一个通信信道上的第一感测帧执行频谱感测。 在至少一个通信信道上接收至少一个观察信号（204）。 执行检测决定（210）以确定观察到的信号是否是噪声或与活动用户相关联的活动信号。 通过将观测信号能量估计与电流检测阈值进行比较来执行检测决定（210）。 根据紧接在第一感测帧之前的感测帧的先前检测判定，当前检测阈值可以是任意定义的阈值或检测阈值。