Study of Rate Assignment on the Downlink of WCDMA
In the paper, firstly we can know the power control is one of the most important technologies of radio resource management in WCDMA system, secondly the base principle of the outer loop power control is analyzed theoretically, and at the same time, both the utility function-based power control algorithm and the power control algorithm with the base station assignment are briefly discussed. The two algorithms are connected according to their advantages and disadvantages, a rate assignment algorithm on the downlink for the data transmission is proposed. The optimization goal of the resource allocation strategy is choosing appropriate utility function. The utility function reflects a flexible tradeoff between total system throughput and fairness. The power is distributed through the control module and the scheduling module. The simulations show the performance of the algorithm.