基于LTE-CA载波休眠节能的应用研究

从LTE到LTE-Advance系统的演进过程中,更宽频谱及更高容量的需求是影响演进的重要因素,因此提出了CA(Carrier Aggregation,载波聚合)作为LTE-Advance系统中的关键技术,同时也较好地解决了用户剧增而导致容量不足的问题。然而,CA技术的应用需要另一套射频系统的支持,也明显增加了整个网络的功耗。CA中叠加载波的智能休眠节能是LTE-Advance系统中降本增效的关键策略。文章从其基本原理、节能效果、指标对比等全面评估,并提出相关建议。

In the evolution of LTE-Advance system, the CA （Carrier Aggregation） is an important technology for wider spectrum and higher capacity. Nevertheless, the application of CA technology requires another RF system, and obviously increases the power consumption of the whole network. Intelligent shutdown and energy saving of stacked carrier in CA is a efficient strategy to saving energy. In this paper,the basic principle,effect,KPI comparison of CA Intelligent shutdown are analyzed. Meanwhile, some suggestions are put forward in the end.