LTE多频多载波复杂组网下的业务均衡优化方法浅析

Brief Analysis of Service Balance Optimization Method in LTE Multi-frequency Multi-carrier Complex Networking

针对复杂组网下载波间的负载不均衡问题,通过对多频多载波混合组网带来的网络结构复杂性、扇区内载波配置数量和出现不均衡概率的关系、天馈工参的差异和出现不均衡概率的关系等3个方面的定性及定量分析,给出了四个方向的解决方案:第一,厘清并实施基于复杂分层组网架构下的互操作参数策略;第二,拉齐同频段载波间的发射功率配置水平;第三,通过开启并制定MLB参数策略来实现业务负载的定向均衡;第四,通过天馈工参调整解决载波间固有的覆盖差异问题。最后还开发出负载均衡自动优化平台,显著提升了均衡优化的工作效率。通过优化方法的实施,本地网负载均衡情况得到较大改善。

Aiming at the problem of unbalanced load between different carriers in complex networking,and based on qualitative and quantitative analysis of the three aspects of network structure complexty,the relationship between the number of carrier configuration in the sector and the probability of imbalance,and the relationship between the discrepancy of antenna feed parameters and the occurrence of imbalance probability brought by the multi-frequency and multi-carrier hybrid networking,the solution is given in four directions:first,clarifying and implementing the interoperable parameter strategy based on a complex layered networking architecture;second,aligning the carrier transmit power allocation level between carriers in the same frequency band;third,realizing the directional balancing of service load by enabling and formulating the MLB parameter group strategy;fourth,solving the inherent coverage problem between carriers by adjusting the antenna feed parameters.Finally,by developing a load balancing automation platform,the work efficiency of balancing optimization is significantly promoted.The implementation of the optimization method lndicates that the local network load balancing situation is greatly improved.