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    Method and apparatus for optimizing spectrum utilization by a cognitive radio network
    11.
    发明专利
    Method and apparatus for optimizing spectrum utilization by a cognitive radio network 未知

    公开(公告)号：AU2009300250A1

    公开(公告)日：2010-04-08

    申请号：AU2009300250

    申请日：2009-08-24

    Applicant: MOTOROLA INC

    Inventor： CHAUDHRI APOORV ,  GURNEY DAVID P ,  KUFFNER STEPHEN L ,  RAO YADUNANDANA N ,  SIMMS MATTHEW E

    IPC: H04W16/14 ,  H04W72/02

    Abstract: A technique for a secondary communication system to utilize spectrum designated to another (or primary) communication system is provided. By ranking a plurality of secondary base stations based on base station transmit power, calculated required transmit power and path loss, a set of criteria is developed for selecting a highest ranked secondary base station for operation within a primary's spectrum. The ranking may be adapted based on mobility of the secondary's subscriber; and as such the secondary system communicates within the primary's spectrum using the adaptively ranked base stations. Channel selection may also be ranked. The technique and apparatus allows a cognitive radio (CR) network to operate within an incumbent network's spectrum.

    METHOD AND APPARATUS FOR ELECTRONIC ITEM IDENTIFICATION IN A COMMUNICATION SYSTEM USING KNOWN SOURCE PARAMETERS
    12.
    发明申请
    METHOD AND APPARATUS FOR ELECTRONIC ITEM IDENTIFICATION IN A COMMUNICATION SYSTEM USING KNOWN SOURCE PARAMETERS 审中-公开
    使用已知源参数的通信系统中电子项目识别的方法和装置

    公开(公告)号：WO2004110079A2

    公开(公告)日：2004-12-16

    申请号：PCT/US2004006931

    申请日：2004-03-04

    Applicant: MOTOROLA INC ,  KUFFNER STEPHEN ,  COLLINS TIMOTHY ,  EASTMOND BRUCE ,  GURNEY DAVID P

    Inventor： KUFFNER STEPHEN ,  COLLINS TIMOTHY ,  EASTMOND BRUCE ,  GURNEY DAVID P

    IPC: G06K7/00 ,  H04Q

    CPC classification number: G06K7/10039 ,  G06K7/0008

    Abstract: A communications method including the steps of: receiving signals from at least one signal source during a first signal source transmission; estimating at least one signal source parameter based on the received signals during the first signal source transmission; receiving signals from at least one signal source during a second signal source transmission; and determining a difference between the first and second signal source transmissions using the at least one estimated signal source parameter.

    Abstract translation: 一种通信方法，包括以下步骤：在第一信号源传输期间从至少一个信号源接收信号; 在第一信号源传输期间基于接收到的信号来估计至少一个信号源参数; 在第二信号源传输期间从至少一个信号源接收信号; 以及使用所述至少一个估计信号源参数来确定所述第一和第二信号源传输之间的差异。

    METHOD AND APPARATUS FOR SPECTRUM SHARING BETWEEN AN INCUMBENT COMMUNICATION SYSTEM AND A COGNITIVE RADIO SYSTEM
    13.
    发明专利
    METHOD AND APPARATUS FOR SPECTRUM SHARING BETWEEN AN INCUMBENT COMMUNICATION SYSTEM AND A COGNITIVE RADIO SYSTEM 未知

    公开(公告)号：CA2693483C

    公开(公告)日：2013-10-22

    申请号：CA2693483

    申请日：2008-07-30

    Applicant: MOTOROLA INC

    Inventor： GURNEY DAVID P ,  CHAUDHRI APOORV ,  RAO YADUNANDANA N ,  SIMMS MATTHEW E

    IPC: H04W16/14

    Abstract: Efficient frequency spectrum sharing between at least one incumbent communication system(s) (102, 152) and at least one cognitive radio (CR) system (105) is provided. The incumbent system's system parameters and CR system's operational requirements are copied to a mirrored database (106B). The mirrored database (106B) is controlled by a either a central authority (108) or a database manager having delegated authority (508). The mirrored database (106B) is accessed by the CR system (105). The mirrored database (106B) can be modified and updated by the central authority (108) or delegated database manager (508) to correct for interference detected in the incumbent system caused (152) by the cognitive radio system (105). The cognitive radio system (105) utilizes the updated mirrored database (106B) to avoid interfering with the incumbent system (102, 152) to determine CR system operating parameters thus enhancing the ability to share spectrum.

    METHOD AND APPARATUS FOR OPTIMIZING SPECTRUM UTILIZATION BY A COGNITIVE RADIO NETWORK
    16.
    发明申请
    METHOD AND APPARATUS FOR OPTIMIZING SPECTRUM UTILIZATION BY A COGNITIVE RADIO NETWORK 审中-公开
    通过认知无线电网络优化频谱利用的方法和装置

    公开(公告)号：WO2010039352A3

    公开(公告)日：2010-05-27

    申请号：PCT/US2009054720

    申请日：2009-08-24

    Applicant: MOTOROLA INC ,  CHAUDHRI APOORV ,  GURNEY DAVID P ,  KUFFNER STEPHEN L ,  RAO YADUNANDANA N ,  SIMMS MATTHEW E

    Inventor： CHAUDHRI APOORV ,  GURNEY DAVID P ,  KUFFNER STEPHEN L ,  RAO YADUNANDANA N ,  SIMMS MATTHEW E

    IPC: H04W16/14 ,  H04W72/02

    CPC classification number: H04W72/082 ,  H04W4/02 ,  H04W8/205 ,  H04W16/14 ,  H04W48/20 ,  H04W72/02

    Abstract: A technique for a secondary communication system to utilize spectrum designated to another (or primary) communication system is provided. By ranking a plurality of secondary base stations based on base station transmit power, calculated required transmit power and path loss, a set of criteria is developed for selecting a highest ranked secondary base station for operation within a primary's spectrum. The ranking may be adapted based on mobility of the secondary's subscriber; and as such the secondary system communicates within the primary's spectrum using the adaptively ranked base stations. Channel selection may also be ranked. The technique and apparatus allows a cognitive radio (CR) network to operate within an incumbent network's spectrum.

    Abstract translation: 提供了一种次要通信系统利用指定给另一（通信）通信系统的频谱的技术。 通过基于基站发射功率，计算的所需发射功率和路径损耗对多个次基站进行排序，开发了用于选择最高等级次级基站以在主频谱内操作的一组标准。 可以基于辅助用户的移动性来调整排名; 并且因此次级系统使用自适应排名的基站在主频谱内进行通信。 频道选择也可能被排名。 该技术和装置允许认知无线电（CR）网络在现有网络的频谱范围内运行。

    COEXISTENCE AND INCUMBENT PROTECTION IN A COGNITIVE RADIO NETWORK
    17.
    发明申请
    COEXISTENCE AND INCUMBENT PROTECTION IN A COGNITIVE RADIO NETWORK 审中-公开
    认知无线电网络中的共同保护和有害保护

    公开(公告)号：WO2009155016A2

    公开(公告)日：2009-12-23

    申请号：PCT/US2009045369

    申请日：2009-05-28

    Applicant: MOTOROLA INC ,  CHAUDHRI APOORV ,  GURNEY DAVID P ,  RAO YADUNANDANA N

    Inventor： CHAUDHRI APOORV ,  GURNEY DAVID P ,  RAO YADUNANDANA N

    IPC: H04W16/14

    CPC classification number: H04W16/14 ,  H04W52/243 ,  H04W52/281 ,  H04W52/283 ,  H04W52/367 ,  H04W72/0453 ,  H04W72/0473

    Abstract: A method (300, 400) and a communication system (104, 106, 200) for dynamic RF spectrum allocation among a plurality of RF transmitters (108, 110, 112). A message can be received from a first communication system. The message can include a request (130) for available RF spectrum over which to transmit RF signals. The message can indicate a geographic location of a first non-incumbent transmitter (112) associated with the first communication system. Further, for the RF spectrum, a maximum power level can be determined at which the first non-incumbent transmitter may transmit without exceeding a threshold level of interference at at least one focal point (134). A RF spectrum list (138) identifying at least the RF spectrum and the determined maximum power level can be communicated to the first communication system.

    Abstract translation: 一种用于多个RF发射机（108,110,112）中的动态RF频谱分配的方法（300,400）和通信系统（104,106,200）。 可以从第一通信系统接收消息。 消息可以包括用于发射RF信号的可用RF频谱的请求（130）。 该消息可以指示与第一通信系统相关联的第一非现在发射机（112）的地理位置。 此外，对于RF频谱，可以确定第一非现在发射机可以在哪个第一非现在发射机可以在不超过至少一个焦点（134）处的阈值干扰电平的情况下发射的最大功率电平。 识别至少RF频谱和确定的最大功率电平的RF频谱列表（138）可被传送到第一通信系统。

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