摘要
分析目标邻区的信号电平值,在满足A3条件的前提下将切换迟滞与邻区及服务小区的差值进行关联。分析所有邻区负载,在不超过负载阈值的情况下,选择负载最小的小区进行切换,而对于超负载的小区直接抛弃。在考虑信号电平和小区负载的情况下,对切换迟滞进行综合地动态评估,对每次切换的邻区进行筛选,最终选择具备最强电平以及最佳负载的邻区进行切换。与传统的LTE切换算法相比,该算法能够有效减少乒乓切换,提升整个系统的利用率。最后,通过Matlab搭建了一个仿真平台,验证该算法的效率和性能。
Analyzing the signal level of all target neighbor cells, the switch hysteresis parameter is connected with the difference value of signal when meeting the condition of A3. Calculating the neighbors＇ cell loads, the minimum load cell is selected to switch when its load didn＇ t exceed the given threshold. The overload cells were directly abandoned. Considering the integrated im- pacting of signal and load, MLHA will dynamically evaluate the hysteresis parameter and sieve the final target neighbor cell with strongest signal and lowest load. Comparing with the traditional A3 algorithm, MLHA can reduce the ping-pong switching times and increase the utilization of system. Finally, Matlab is used to build a simulation platform, to test the performance of MLHA, such as efficiency and adaptability under different circumstances.
出处
《邮电设计技术》
2017年第6期32-35,共4页
Designing Techniques of Posts and Telecommunications
