高铁场景LTE网络负荷评估及容量提升分析

LTE Network Load Evaluation and Capacity Enhancement Analysis for High-Speed Rail Scenario

高铁场景中高速移动、批量瞬时涌入、无线信号多普勒偏移等网络特性给运营商网络容量带来了前所未有的冲击,标准配置已不能满足高铁场景的用户需求,因此提出基于业务的感知评估方法,由此总结出LTE小区用户感知恶化门限与扩容方案,以满足用户日益增长的数据需求,有效保持用户感知。

The high-speed movement,instantaneous traffic influx and the wireless signal Doppler shift in the high-speed rail scenario give rise the unprecedented impact on the network capacity of operators.The standard configuration can not satisfy the user requirements in the high-speed rail scenario.Therefore,a perception evaluation method based services is proposed in this paper.The solution to user perception deterioration threshold and capacity expansion is summarized to satisfy the users5 increasing demands on data and effectively maintain user perception.