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为了适应下一代移动通信系统的宽带化的需求,现有3G技术已经不能满足宽带化的需求,3GPP开始了下一代移动通信系统LTE的研究,中国也开始了从TD-SCDMA到LTE TDD技术的演进。功率控制可以在不影响用户的通信质量的情况下尽可能的降低用户的发射功率,增加充电终端的使用时间。在研究LTE FDD上行功率控制算法的基础上,提出了一种改进的上行功率控制算法,并将此算法应用于TD-LTE系统中进行了仿真分析,仿真结果验证了此算法的正确性。
In order to meet the demand of the broadband of the next generation of mobile communication system, the existing 3G technology can no longer meet the demand of broadband. 3GPP started the research on LTE of the next generation mobile communication system, and China started the research from TD-SCDMA to LTE TDD Evolution. The power control can reduce the transmit power of the user as much as possible without affecting the communication quality of the user and increase the usage time of the charging terminal. Based on the research of LTE FDD uplink power control algorithm, an improved uplink power control algorithm is proposed. The algorithm is applied to TD-LTE system for simulation analysis. The simulation results verify the correctness of the algorithm.