TD-SCDMA系统中基于上行参数的下行波束赋形算法  

Downlink beamforming algorithm based on the uplink parameters in TD-SCDMA system

作　　者：康绍莉[1] 裘正定[1] 李世鹤 

机构地区：[1]北方交通大学信息科学研究所,北京100044 [2]大唐电信TDD开发部,北京100083

出　　处：《通信学报》2002年第8期67-71,共5页Journal on Communications

基　　金：国家自然科学基金资助项目(69971002);大唐电信基金资助项目

摘　　要：在TD-SCDMA系统中,我们在基站发送端进行波束赋形来提高下行链路的性能。以最优准则-最大信干噪比特征分解算法为例,我们分析基于上行参数进行下行赋形的基本原理,模拟了不同环境下赋形算法的性能,并与全向情况进行比较,得出了相应的结论。In the TD-SCDMA system, we employ sending beamforming at the base station to improve the performance of the downlink. Take the optimal criterion-maximal SINR algorithm based on eigenvalue decomposition as an example, we analyze the basic theory of the downlink beamfoming which is based on uplink parameters. Then given some wireless environment, we simulate the performance of the beamforming algorithm in the downlink system and compare it with the omni-directional occasion. In the end, we give some conclusion.

关 键 词：TD-SCDMA系统 上行参数 下行波束 赋形算法 时分双工-同步码分多址 最大信干噪比 信道响应 智能天线 

分 类 号：TN929.533[电子电信—通信与信息系统] TN821.91[电子电信—信息与通信工程]