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    • 9. 发明申请
    • METHOD AND APPARATUS FOR SPECTRUM SHARING BETWEEN AN INCUMBENT COMMUNICATION SYSTEM AND A COGNITIVE RADIO SYSTEM
    • 无线通信系统与认证无线电系统之间的频谱分享方法与装置
    • WO2009018300A1
    • 2009-02-05
    • PCT/US2008/071525
    • 2008-07-30
    • MOTOROLA, INC.GURNEY, David P.CHAUDHRI, ApoorvRAO, Yadunandana N.SIMMS, Matthew E.
    • GURNEY, David P.CHAUDHRI, ApoorvRAO, Yadunandana N.SIMMS, Matthew E.
    • H04W16/14
    • H04W16/14H04W24/04
    • 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.
    • 提供至少一个现有通信系统(102,152)和至少一个认知无线电(CR)系统(105)之间的有效的频谱共享。 现有系统的系统参数和CR系统的操作要求被复制到镜像数据库(106B)。 镜像数据库(106B)由具有委托权限的中央管理机构(108)或数据库管理器(508)控制。 镜像数据库(106B)由CR系统(105)访问。 可以由中央管理机构(108)或委托的数据库管理器(508)修改和更新镜像数据库(106B),以校正由认知无线电系统(105)引起(152)在现有系统中检测到的干扰。 认知无线电系统(105)利用更新的镜像数据库(106B)来避免干扰现有系统(102,152)来确定CR系统操作参数,从而提高共享频谱的能力。