公开(公告)号：US08908493B2

公开(公告)日：2014-12-09

申请号：US13739088

申请日：2013-01-11

申请人： SRC, Inc.

发明人： Jonathan Morgan Peck

IPC分类号： H04J11/00 ,  H04W72/04 ,  H04B1/00

CPC分类号： H04L5/0041 ,  H04B1/0053 ,  H04L5/0007 ,  H04L27/0006 ,  H04L27/2637 ,  H04W72/0453

摘要： The present invention is directed to a method for use in a cognitive radio. A Fourier transform of a time domain signal is performed to obtain a series of frequency domain samples covering substantially the entire predetermined RF spectrum, the time domain signal corresponding to the RF waveform, each frequency domain sample being characterized by a predetermined waveform characteristic. The predetermined waveform characteristic of each frequency domain sample is evaluated in each subcarrier block to obtain a subcarrier block activity level for each subcarrier block. A subcarrier block is selected when its subcarrier block activity level is greater than a predetermined threshold.

摘要翻译： 本发明涉及一种在认知无线电中使用的方法。 执行时域信号的傅立叶变换以获得覆盖基本上整个预定RF频谱的一系列频域样本，即与RF波形相对应的时域信号，每个频域采样由预定波形特征表征。 在每个子载波块中评估每个频域样本的预定波形特性，以获得每个子载波块的子载波块活动级别。 当子载波块的活动级别大于预定阈值时，选择副载波块。

公开(公告)号：US20140220935A1

公开(公告)日：2014-08-07

申请号：US14175332

申请日：2014-02-07

申请人： SRC, INC.

发明人： Jonathan Morgan Peck ,  Ruibing Wang

IPC分类号： H04W12/10 ,  H04W68/02

CPC分类号： H04W68/02 ,  H04K3/42 ,  H04K3/45 ,  H04K3/65 ,  H04K2203/16 ,  H04L63/1466 ,  H04L63/30 ,  H04W12/12

摘要： Methods and systems for injecting a wireless message in a cellular communication system. The attacking system receives a synchronization waveform from a base station and synchronizes in time and frequency. The attacking system transmits the correct time and frequency, and also transmits one or more attack messages. The mobile transceiver receives the one or more attack messages and responds. The attacking system then transmits a first wireless message configured to alter a characteristic of a physical layer of the mobile station.

摘要翻译： 用于在蜂窝通信系统中注入无线消息的方法和系统。 攻击系统从基站接收同步波形，并在时间和频率上同步。 攻击系统发送正确的时间和频率，并发送一个或多个攻击消息。 移动收发器接收一个或多个攻击消息并进行响应。 攻击系统然后发送被配置为改变移动台的物理层的特性的第一无线消息。

公开(公告)号：US20130294219A1

公开(公告)日：2013-11-07

申请号：US13739088

申请日：2013-01-11

申请人： SRC, INC.

发明人： Jonathan Morgan Peck

IPC分类号： H04W72/04

CPC分类号： H04L5/0041 ,  H04B1/0053 ,  H04L5/0007 ,  H04L27/0006 ,  H04L27/2637 ,  H04W72/0453

摘要： The present invention is directed to a method for use in a cognitive radio. A Fourier transform of a time domain signal is performed to obtain a series of frequency domain samples covering substantially the entire predetermined RF spectrum, the time domain signal corresponding to the RF waveform, each frequency domain sample being characterized by a predetermined waveform characteristic. The predetermined waveform characteristic of each frequency domain sample is evaluated in each subcarrier block to obtain a subcarrier block activity level for each subcarrier block. A subcarrier block is selected when its subcarrier block activity level is greater than a predetermined threshold.

摘要翻译： 本发明涉及一种在认知无线电中使用的方法。 执行时域信号的傅立叶变换以获得覆盖基本上整个预定RF频谱的一系列频域样本，即与RF波形相对应的时域信号，每个频域采样由预定波形特征表征。 在每个子载波块中评估每个频域样本的预定波形特性，以获得每个子载波块的子载波块活动级别。 当子载波块的活动级别大于预定阈值时，选择副载波块。