一种采用混合平衡准则的新功率控制算法

A PC algorithm in TD-SCDMA system

功率控制算法按准则可以分为基于功率平衡准则和基于SIR平衡准则两大主流。基于信干比平衡的功率控制算法存在正反馈问题。基于功率平衡和信干比平衡混合准则的功率控制算法可以解决正反馈问题,但复杂度较高,实现比较困难。提出了一种基于功率平衡和信干比平衡混合准则的功率控制算法。本算法在每次迭代中通过测试接收信号功率和接收信干比,只需要一次判决产生下一周期的发射功率,因此具有易于实现的优点。分析和仿真表明本算法是有效的。

The power control algorithm based on the balance rule of the SINR could not solve the problem of positive feed- back. The power control algorithm based on the mix rule of power and SINR balance can solve the problem of positive feed- back, but with higher complexity, and more difficult to achieve. In this paper presents a new power control algorithm based on the mix rule of power and SINR balance. The algorithm test the power and SINR of the signal in each iteration, genera- ted the next transmit power. This algorithm is easy to be used in the real system. Analysis and simulation proved that the algorithm is effective.