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    • 8. 发明申请
    • METHOD AND APPARATUS FOR BEAMFORMING IN COGNITIVE RADIO SYSTEM
    • 用于认知无线电系统中的光束的方法和装置
    • WO2013097240A1
    • 2013-07-04
    • PCT/CN2011/085185
    • 2011-12-31
    • NEC (CHINA) CO., LTD.LI, ChaofengLEI, MingGAO, FeifeiLUAN, Tianxiang
    • LI, ChaofengLEI, MingGAO, FeifeiLUAN, Tianxiang
    • H04W72/00
    • H04W16/14H04W16/28H04W84/047
    • Embodiments of the disclosure provide a cognitive radio system and a method and apparatus for beamforming in the cognitive radio system. The cognitive radio system may comprise a base station, a relay station, a primary user and a plurality of secondary users, wherein the base station and the relay station serve the plurality of secondary users; and an apparatus for beamforming in the cognitive radio system. The apparatus may comprise: an obtainer configured to obtain channel information on channels associated with the base station, the relay station, the secondary users and the primary user; and a determiner configured to determine, based on the channel information, BS precoding matrices for transmission from the base station to the plurality of secondary users and a RS precoding matrix for transmission from the relay station to the plurality of secondary users. The system, method and system of the present invention can implement CR transmission beamforming while improving the performance of the cognitive radio system.
    • 本公开的实施例提供了认知无线电系统以及用于在认知无线电系统中的波束成形的方法和装置。 认知无线电系统可以包括基站,中继站,主用户和多个次用户,其中基站和中继站服务于多个次用户; 以及在认知无线电系统中用于波束成形的装置。 所述装置可以包括:获取器,被配置为获得关于与所述基站,所述中继站,所述次要用户和所述主用户相关联的信道的信道信息; 以及确定器,被配置为基于所述信道信息来确定用于从所述基站到所述多个次用户的传输的BS预编码矩阵,以及用于从所述中继站到所述多个次用户的传输的RS预编码矩阵。 本发明的系统,方法和系统可以在提高认知无线电系统的性能的同时实现CR传输波束成形。