大规模部署载波聚合的可行性研究

Feasibility Study on Large-Scale Deployment of Carrier Aggregation

首先分析了LTE现网中载波聚合基站的部署现状,通过统计数据吞吐量和信道资源利用率等重要参数,比较分析了其中载波聚合基站与非载波聚合基站的差别。接着通过分析现网中各种业务的流量分布以及用户习惯,给出了极限状态下的用户预测模型。最后基于预测的用户模型,分析了现有网络承载能力是否能满足用户需求,即是否有必要在全城区大规模部署载波聚合基站。

First, current deployment status of base station with carrier aggregation technology in LTE network was discussed. Through statistical analysis of key parameters like the data throughput and channel resource utilization, the differences of CA station and non-CA station were compared and analyzed. After that, a predicted user model in extreme state was given based on analysis of traffic distribution in the current network and user habit. Last, based on the predicted user model, the issue of whether the existing network bearing capacity can meet the demand of users, that is, whether the large-scale deployment of carrier aggregation base station in the whole urban is necessary was analyzed.