基于参考值的TD-SCDMA系统下行内环功率控制方案
首发时间:2010-11-02
摘要:TD-SCDMA自商用以来,其网络性能来备受关注,而功率控制是影响其性能的关键技术之一。本文在深入调研TD-SCDMA(R4)下行内环功率控制基础上,提出一种基于参考值的变步长自适应功率控制方案。通过系统仿真对比与统计分析,发现其性能优于固定步长的功率控制方案,可以进一步降低基站端发射功率,并改善网络的性能。
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A Novel Reference Value Based Inner Loop Power Control Scheme in the Downlink of TD-SCDMA Systems
Abstract:The network performance of TD-SCDMA has been widely concerned since its business application and the power control technique is one of the major factors which influence the overall performance. According to in-depth research of the downlink inner loop power control in the R4 version of TD-SCDMA systems, we propose a novel variable step size adaptive power control scheme based on reference value. The simulation result shows that this new scheme, which outperforms the fixed step power control algorithm, can reduce the base station transmit power and improve system performance.
Keywords: TD-SCDMA variable step power control
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No.4389527547770128****
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