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    • 5. 发明公开
    • SYSTEM AND METHOD FOR IMPROVING THE ROBUSTNESS OF SPATIAL DIVISION MULTIPLE ACCESS VIA NULLING
    • 系统和方法改进空间复用多个接入实力BY ZERO
    • EP2050216A4
    • 2014-12-03
    • EP07760284
    • 2007-04-06
    • CISCO TECH INC
    • JIM HANGLI GUO
    • H04L1/02H01Q3/26H04B7/06H04B7/08
    • H01Q3/2611H04B7/0617H04B7/0842H04B7/086H04B7/0865
    • The present invention discloses a base transceiver station (BTS) equipped with a plurality of antennas for improving the robustness of spatial division multiple access via nulling. The BTS comprises of a first matrix module receiving a plurality of signals from one or more customer premises equipments (CPEs) through the plurality of antennas and producing correspondingly a first plurality of covariance matrices representing the plurality of signals, a second matrix module receiving the first plurality of covariance matrices and generating correspondingly a set of derivative spatial signature matrices representing the CPEs respectively, a third matrix module receiving the derivative spatial signature matrices and producing correspondingly a second plurality of covariance matrices representing interferences of the CPEs, and an eigenvector module generating a plurality of beamforming vectors for the CPEs from the plurality of derivative spatial signature matrices and the second plurality of covariance matrices.
    • 本发明盘松配备有天线,用于提高的通过调零空分多址的鲁棒性的多个基站收发台(BTS)。 第一矩阵模块通过天线的多个接收的来自一个或多个客户驻地设备(CPE)信号的多个和生产相应表示的信号的多元协方差矩阵的第一多个BTS包括,一个第二矩阵模块接收到所述第一 协方差矩阵的多个并产生相应的一组分别表示的CPE衍生物空间特征矩阵,第三矩阵模块接收所述衍生物空间特征矩阵和生产相应表示所述CPE的干扰协方差矩阵的第二多个,与特征向量的模块上产生一 从衍生物空间特征矩阵的多个和协方差矩阵的第二多个所述的CPE波束成形向量的多个。