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    Method and system for the spectrum manager operation in cognitive radio systems
    1.
    发明授权
    Method and system for the spectrum manager operation in cognitive radio systems 有权
    认知无线电系统中频谱管理器操作的方法和系统

    公开(公告)号：US08787926B2

    公开(公告)日：2014-07-22

    申请号：US13375380

    申请日：2011-03-30

    申请人： Apurva N. Mody

    发明人： Apurva N. Mody

    IPC分类号： H04W72/08

    CPC分类号： H04W16/14 ,  H04L27/0006 ,  H04W72/082

    摘要： A system and method for the operation of a Spectrum Manager (SM) within a cognitive radio system includes two primary states of operation: SM at network initialization and SM at network operation. While in the network Initialization state, the SM's primary responsibility is to find an operating channel. After an operating channel is found, the SM moves from the network initialization state to the network operation state while executing a procedure to establish a network. While in the network operation state, the SM can execute other procedures, a procedure to update list of available channel from the incumbent database of channel and frequency data, a procedure to determine a signal type, a procedure to enter co-existence mode, deciding when to move to a backup channel and issuing calls for the same as well as background procedures such as looking for better backup channels when the SM is otherwise idle.

    摘要翻译： 用于在认知无线电系统内操作频谱管理器（SM）的系统和方法包括两种主要操作状态：网络初始化时的SM和网络操作的SM。 在网络初始化状态下，SM的主要职责是找到一个操作通道。 在找到操作信道之后，SM在执行建立网络的过程时从网络初始化状态移动到网络操作状态。 在网络运行状态下，SM可以执行其他程序，从通道和频率数据的现有数据库更新可用通道列表的过程，确定信号类型的过程，进入共存模式的过程，决定 何时移动到备用通道并发出呼叫以及后台程序，例如在SM否则空闲时寻找更好的备份通道。

    Protocol Reference Model, Security and Inter-Operability in a Cognitive Communications System
    2.
    发明申请
    Protocol Reference Model, Security and Inter-Operability in a Cognitive Communications System 有权
    认知通信系统中的协议参考模型，安全性和互操作性

    公开(公告)号：US20090124207A1

    公开(公告)日：2009-05-14

    申请号：US12189672

    申请日：2008-08-11

    申请人： Apurva N. Mody ,  Matthew J. Sherman ,  Kevin M. McNeill ,  Phong C. Khuu ,  Dan E. Dudgeon ,  Ranga Reddy ,  Thomas Kiernan

    发明人： Apurva N. Mody ,  Matthew J. Sherman ,  Kevin M. McNeill ,  Phong C. Khuu ,  Dan E. Dudgeon ,  Ranga Reddy ,  Thomas Kiernan

    IPC分类号： H04B17/00

    CPC分类号： H04L63/162 ,  H04W12/00 ,  H04W64/003

    摘要： Various cognitive communications system architectures and their corresponding Protocol Reference Models (PRMs) are disclosed. Such PRMs incorporate a Cognitive Plane in addition to conventional Data and Management Planes. The additional Cognitive Plane functionality may include, for example, spectrum sensing, spectrum management, geolocation, and security functions. The Cognitive Plane may further include a Policy Engine and a Learning and Reasoning Module. In some embodiments, Management Plane functions may be effectively combined to form a database of primitives (and their respective values) called a Management Information Base (MIB). In addition, techniques are provided by which various components of cognitive and non-cognitive, as well as mesh-enabled and non-mesh-enabled nodes in a network, inter-operate with each other. The architectures allow a Spectrum Manager (or Signal Space Manager) to combine information from various network layers (e.g., PHY/MAC Layers, Spectrum Sensing Function, Geolocation Function, and/or Security Sublayers), and to make informed decisions on spectrum utilization.

    摘要翻译： 公开了各种认知通信系统架构及其相应的协议参考模型（PRM）。 除了传统的数据和管理平面之外，这种PRM还包含一个认知平面。 额外的认知平面功能可以包括例如频谱感测，频谱管理，地理定位和安全功能。 认知平面还可以包括策略引擎和学习和推理模块。 在一些实施例中，可以有效地组合管理平面功能以形成称为管理信息库（MIB）的图元数据库（及其各自的值）。 此外，提供了技术，通过该技术，网络中的认知和非认知以及网格启用和非网格启用节点的各种组件彼此互操作。 该架构允许频谱管理器（或信号空间管理器）组合来自各种网络层（例如，PHY / MAC层，频谱感测功能，地理位置功能和/或安全子层）的信息，并对频谱利用率做出明智的决定。

    SPECTRUM SENSING FUNCTION FOR COGNITIVE RADIO APPLICATIONS
    3.
    发明申请
    SPECTRUM SENSING FUNCTION FOR COGNITIVE RADIO APPLICATIONS 有权
    用于认知无线电应用的光谱感测功能

    公开(公告)号：US20090102981A1

    公开(公告)日：2009-04-23

    申请号：US12342485

    申请日：2008-12-23

    申请人： Apurva N. Mody

    发明人： Apurva N. Mody

    IPC分类号： H04N5/50 ,  H04B1/06 ,  G06F11/00

    CPC分类号： H04K3/822 ,  H04K3/22 ,  H04K3/45 ,  H04L5/0007 ,  H04L27/2647 ,  H04W16/14

    摘要： A method and system are disclosed to detect a broad class of signals including Advanced Television Systems Committee (ATSC) digital television (DTV) and wireless microphone signals. This signal detection method performs in Gaussian noise, employing Higher Order Statistics (HOS). Signals are processed in time and frequency domains as well as by real and imaginary components. The spectrum sensing employed also supports Denial of Service (DoS) signal classification. The method can include parameters that may be tailored to adjust the probability of detection and false alarm.

    摘要翻译： 公开了一种用于检测广泛类别的信号的方法和系统，包括高级电视系统委员会（ATSC）数字电视（DTV）和无线麦克风信号。 该信号检测方法采用高阶噪声，采用高阶统计（HOS）。 信号在时域和频域以及实部和虚部进行处理。 所采用的频谱感测还支持拒绝服务（DoS）信号分类。 该方法可以包括可以调整以检测和误报概率的参数。

    Time and frequency synchronization in multi-input, multi-output (MIMO) systems
    5.
    发明授权
    Time and frequency synchronization in multi-input, multi-output (MIMO) systems 有权

    公开(公告)号：US07088782B2

    公开(公告)日：2006-08-08

    申请号：US10128821

    申请日：2002-04-24

    申请人： Apurva N. Mody ,  Gordon L. Stuber

    发明人： Apurva N. Mody ,  Gordon L. Stuber

    IPC分类号： H04K1/10

    CPC分类号： H04L1/0618 ,  H04B7/04 ,  H04L27/2602

    摘要： In a communication system, and in particular a wireless Orthogonal Frequency Division Multiplexing (OFDM) communication system, the present invention provides systems for synchronizing data transmitted across a channel. The present invention may be used in a Multi-Input, Multi-Output (MIMO) system in which the data is transmitted from any number of transmitting antennas and received by any number of receiving antennas. The number of transmitting and receiving antennas does not necessarily have to be the same. Circuitry is provided for synchronizing the data in both the time domain and frequency domain. Time synchronization involves coarse time synchronization and fine time synchronization. Frequency synchronization involves coarse frequency offset estimation, fine frequency offset estimation, and frequency offset correction.

    Apparatus and methods for providing efficient space-time structures for preambles, pilots and data for multi-input, multi-output communications systems
    6.
    再颁专利
    Apparatus and methods for providing efficient space-time structures for preambles, pilots and data for multi-input, multi-output communications systems 有权
    用于为多输入多输出通信系统的前导码，导频和数据提供有效的时空结构的装置和方法

    公开(公告)号：USRE44867E1

    公开(公告)日：2014-04-29

    申请号：US13418626

    申请日：2012-03-13

    申请人： Gordon L. Stuber ,  Apurva N. Mody

    发明人： Gordon L. Stuber ,  Apurva N. Mody

    IPC分类号： H04L27/08 ,  H04B7/02 ,  H04L27/36 ,  H04L1/06 ,  H04B7/06 ,  H04B7/08 ,  H04J11/00

    CPC分类号： H04L25/0226 ,  H04B7/0669 ,  H04L1/06 ,  H04L27/2613 ,  H04L2027/0095

    摘要： Apparatus and methods for providing efficient space-time structures for preambles, pilots and data for multi-input, multi-output (MIMO) communications systems are provided. One such embodiment includes providing a computer program that includes logic configured to provide an initial structure. The computer program further includes logic configured to verify that the rows of the initial structure are linearly independent and logic configured to apply an orthonormalization procedure to the initial structure to obtain a space-time structure. Methods are also provided for providing efficient space-time structures for preambles, pilots and data for MIMO communications systems.

    摘要翻译： 提供了用于为多输入多输出（MIMO）通信系统的前导码，导频和数据提供有效的时空结构的装置和方法。 一个这样的实施例包括提供包括被配置为提供初始结构的逻辑的计算机程序。 所述计算机程序还包括配置用于验证所述初始结构的行是线性独立的逻辑，以及被配置为将逻辑正规化过程应用于所述初始结构以获得时空结构的逻辑。 还提供了用于为MIMO通信系统的前导码，导频和数据提供有效的时空结构的方法。

    METHOD AND SYSTEM TO MAKE CURRENT WIRELESS RADIOS COGNITIVE USING AN EXTERNAL SENSOR AND APPLICATION LEVEL MESSAGING
    8.
    发明申请
    METHOD AND SYSTEM TO MAKE CURRENT WIRELESS RADIOS COGNITIVE USING AN EXTERNAL SENSOR AND APPLICATION LEVEL MESSAGING 有权
    使用外部传感器和应用电平消息发送电流无线射频识别的方法和系统

    公开(公告)号：US20120142386A1

    公开(公告)日：2012-06-07

    申请号：US13320416

    申请日：2011-03-11

    申请人： Apurva N. Mody ,  Matthew J. Sherman ,  Kwok N. Yau ,  Alan Trojan ,  Sharon K. Sputz ,  Joseph Farkas

    发明人： Apurva N. Mody ,  Matthew J. Sherman ,  Kwok N. Yau ,  Alan Trojan ,  Sharon K. Sputz ,  Joseph Farkas

    IPC分类号： H04W88/02

    CPC分类号： H04W16/14 ,  H04W72/082

    摘要： A system and method for converting a non-cognitive radio into a cognitive radio is presented. A cognitive radio system includes, a non-cognitive radio; an electronic device, a spectrum sensing logic and configuration and management logic. The electronic device is connected to the non-cognitive radio so that it receives and/or transmits messages to/from a wireless network. The configuration and management logic is connected between the non-cognitive radio and the spectrum sensing logic. The spectrum sensing logic and the configuration and management logic are removable from the non-cognitive radio allowing the cognitive radio to operate in a non-cognitive mode. The spectrum sensing logic senses a wireless environment to determine available frequencies and available channels. The configuration and management logic transmits available frequencies, available channels or other spectrum data to a remote spectrum manager that is managing access to the wireless network.

    摘要翻译： 提出了一种用于将非认知无线电转换为认知无线电的系统和方法。 认知无线电系统包括非认知无线电; 电子设备，频谱感测逻辑和配置和管理逻辑。 电子设备连接到非认知无线电，使得其接收和/或向无线网络发送消息。 配置和管理逻辑连接在非认知无线电和频谱感测逻辑之间。 频谱感测逻辑和配置和管理逻辑可从非认知无线电中移除，使认知无线电以非认知模式工作。 频谱感测逻辑检测无线环境以确定可用频率和可用信道。 配置和管理逻辑将可用频率，可用信道或其他频谱数据发送到正在管理对无线网络的接入的远程频谱管理器。

    EFFICIENT DETECTION ALGORITHM SYSTEM FOR A BROAD CLASS OF SIGNALS USING HIGHER-ORDER STATISTICS IN TIME AS WELL AS FREQUENCY DOMAINS
    9.
    发明申请
    EFFICIENT DETECTION ALGORITHM SYSTEM FOR A BROAD CLASS OF SIGNALS USING HIGHER-ORDER STATISTICS IN TIME AS WELL AS FREQUENCY DOMAINS 有权
    使用高阶统计信息的广泛类信号的有效检测算法系统在时间上是频域

    公开(公告)号：US20110131260A1

    公开(公告)日：2011-06-02

    申请号：US12644513

    申请日：2009-12-22

    申请人： Apurva N. Mody

    发明人： Apurva N. Mody

    IPC分类号： G06F17/15

    CPC分类号： H04L27/0006

    摘要： An algorithm system to detect a broad class of signals in Gaussian noise using higher-order statistics. The algorithm system detects a number of different signal types. The signals may be in the base-band or the pass-band, single-carrier or multi-carrier, frequency hopping or non-hopping, broad-pulse or narrow-pulse etc. In a typical setting this algorithm system provides an error rate of 3/100 at a signal to noise ratio of 0 dB. This algorithm system gives the time frequency detection ratio that may be used to determine if the detected signal falls in Class Single-Carrier of Class Multi-Carrier. Additionally this algorithm system may be used for a number of different applications such as multiple signal identification, finding the basis functions of the received signal and the like.

    摘要翻译： 一种使用高阶统计量来检测高斯噪声中广泛信号类型的算法系统。 算法系统检测多种不同的信号类型。 信号可以在基带或通带，单载波或多载波，跳频或非跳频，宽脉冲或窄脉冲等中。在典型的设置中，该算法系统提供错误率 的信噪比为0 dB。 该算法系统给出了可用于确定检测到的信号是否属于多载波类的单载波的时间频率检测率。 此外，该算法系统可以用于多个不同的应用，例如多信号识别，找到接收信号的基本功能等。