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文中对下一代移动通信系统LTE的动态资源分配算法进行研究,通过分析不同业务类型的QoS需求,设定用户使用业务类型的QoS参数,确定优先级大小,通过QOS来表示不同业务的时间延迟;同时对小区切换用户的优先等级分析,设置了切换因子,提出了基于QoS优化的改进算法,并进行系统仿真计算分析,结果表明和传统算法相比,系统性能得到有效改进,进一步提高了系统公平性并增加小区吞吐量。
In this paper, the dynamic resource allocation algorithm of LTE for next generation mobile communication system is studied. QoS parameters of different service types are analyzed, QoS parameters of service type are set, priorities are determined, and time delays of different services are represented by QOS. At the same time, it analyzes the priority of cell handover users, sets the switching factor, proposes an improved algorithm based on QoS optimization, and carries out the system simulation calculation and analysis. The results show that compared with the traditional algorithm, the system performance is effectively improved and the system fairness is further improved And increase the cell throughput.