文章指出利用自配置技术,每个基站可以在电信管理网络(OAM)节点允许的范围内,自主地选择物理小区标识并建立和维护邻区关系;利用自优化技术,每个基站可以根据当前的负载和性能统计情况,进行参数调整,优化系统性能;利用自治愈技术,OAM持续监测通信网络,一旦发现可以自动解决的故障,就启动对相关必要信息的收集,进行故障分析,并根据分析结果触发恢复动作.文章认为不断增加的基站数量、共存的2G/3G/4G系统、异构网络(HetNet)引入的分层网络架构等,导致网络变得越来越复杂,巨大的管理工作和高昂的运维成本,使得采用以自配置、自优化和自治愈为核心特征的SON技术成为LTE/LTE-A系统的必然选择.%Self-configuration, self-optimization, and self-healing are key functionalities in a self-organizing network. The eNB can automatically select the physical cell ID and configure a neighbor relationship within the range allowed by OAM. The eNB can optimize system performance by automatically adjusting its parameters according to statistics on system load and performance. Self-healing aims to solve or mitigate faults that can be solved automatically. The 0AM is responsible for monitoring collected information and detecting faults, and appropriate recovery actions are triggered. Networks are becoming more complicated with increasing numbers of eNBs; coexistence of 2G, 3G and LTE/LTE-A; and heterogeneous HetNet architecture. Manual network planning and optimization is difficult and expensive for operators. To reduce capex and opex and to improve network deployment and operation, SON is the inevitable choice for LTE and LTE-A systems.
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