基于QoS有序竞争的4G-LTE同步RAN/CN过载融合控制

4G-LTE Synchronous RAN/CN Overload Fusion Control Based on QoS Ordered Competition

针对4G-LTE系统中,提出一种基于服务质量(QoS)有序竞争的LTE同步无线接入网/核心网过载融合控制策略.首先,对无线接入网和核心网分别进行考虑,充分考虑类别设备的接受数量和最大同步机器类型通信活跃设备数量,利用激活状态的马尔可夫链稳态概率和访问类别限制策略,分别设计了无线接入网和核心网过载控制策略;其次,通过考虑类别服务质量、每个eNB容许负载的最大值以及设备的可接受数量,实现了RAN过载和CN过载的融合控制;最后,通过实验分析验证了所提方法有效性.

In the4G-he system, here proposed the 4G-LTE synchronous RAN/CN overload fusion control based on QoS ordered competition. Firstly, the wireless access network and the core network was considered separately, full consideration of the categories oi＂ equipment acceptance and the maximum amount of synchronous machine type communication active number of devices, here used the activation state of the Markov chain state probability and access class restriction strategies to design radio access network and the core network overload control strategy; Secondly, by taking into account the quality of the class service, the maximum value of each eNB allowable load and the acceptable number of devices, the fusion control of RAN overload and CN overload is realized; Finally, the experimental results show that the proposed method is effective.