摘要：
在长期演进系统中，移动负载均衡(MLB)和移动鲁棒性优化(MRO)都通过调整切换相关参数优化各自性能目标，这会引发冲突，降低系统性能。为此，提出一套针对MLB的协调机制，采用移动鲁棒性监测、切换边界标记和参数回调等方法避免两者的冲突。仿真结果表明，该协调机制能够防止MLB对切换参数的不当调节，减少切换次数，避免链路失败等问题。
关键词:
长期演进系统,
自组织网络,
移动负载均衡,
移动鲁棒性优化,
切换,
无线链路失败
Abstract:
In Long Term Evaluation(LTE) system, Mobility Load Balancing(MLB) and Mobility Robustness Optimization(MRO) may conflict with each other when they both adjust handover parameters to optimize their respective objects, and consequently system performance degrades. A coordination mechanism embedded in the MLB is proposed to alleviate the impact of conflict problem between MLB and MRO by mobility robustness supervision, handover edge labeling and parameter rollback. Simulation results show that this mechanism can immediately prevent negative handover parameters adjustments by MLB, and decrease the number of mobility problems caused by MLB.
Key words:
Long Term Evaluation(LTE) system,
Self-organizing Network(SON),
Mobility Load Balancing(MLB),
Mobility Robustness Optimization(MRO),
handover,
Radio Link Failure(RLF)
中图分类号:
余建涛, 胡宏林, 金圣峣, 郑小盈. 移动负载均衡与移动鲁棒性优化的冲突协调[J]. 计算机工程, 2012, 38(01): 37-41.
TU Jian-Chao, HU Hong-Lin, JIN Ku-Yao, ZHENG Xiao-Ying. Conflict Coordination Between Mobility Load Balancing and Mobility Robustness Optimization[J]. Computer Engineering, 2012, 38(01): 37-41.