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1. 浙江大学信电系!杭州
2. 310027
Published:1999
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[1]李国通,仇佩亮,徐绿洲.FDD-CDMA的下行链路的波束形成[J].电子学报,1999(12):76-79.
李国通, 仇佩亮, 徐绿洲. Downlink Beamforming for FDD-CDMA[J]. Acta Electronica Sinica, 1999, (12): 76-79.
本文研究了智能天线在FDD-CDMA中的下行链路的应用,利用上行链路接收数据,估计了下行链路的信道相关矩阵和对其它小区用户的相对干扰总量,给出下行链路的波束形成方法,即在保证一定的有效发送功率的同时,使得对其他小区的用户干扰最小.计算机仿真表明:在多小区蜂窝CDMA环境中,采用上述方法比仅保证用户方向的最大发送功率,有更小的中断率
This paper studies the application of smart antennas to the downlink in the FDD-CDMA. We estimate thedownlink channel covariance matrix and the relative interference to users of the other cells by using the uplink data.
and present a method for downlink beamforming
i. e.
we obtain the minimum relative interference to other users while the constanttransmitting power is guaranteed. The computer simulations show that this method has lower outage probility than themethod of only assuring maximum array gain in direction of the use.
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