公专网协同突破高铁保护带容量瓶颈

Public and private network collaboration technology break through the bottleneck of network capacity of high-speed rail protection belt

为保障用户速率感知,高铁专网与公网使用不同频点独立组网,同时在高铁沿线配置保护带,用以避免高铁专网与公网间的干扰与信息交互。随着网络容量的爆发式增长,保护带内频率资源有限,负荷形势严峻。针对该问题,本文采用公专网协同技术,根据瞬时大量切换请求判断高铁出入车,并通过X2接口进行通信,专网和公网小区动态调用相应的资源块,实现实时带宽调整和频谱共享。

In order to ensure user rate perception,the high-speed rail private network and the public network use different frequency points for independent networking.At the same time,the protection band is configured without using the high-speed rail dedicated network frequency to avoid interference and interaction with the public network.With the explosive growth of network capacity,frequency resources in the protection band are limited and the network load situation is severe.So,the public and private network collaboration technology is adopted to solve this problem.According to the instantaneous large number of handovers,the high-speed rail entry and exit are judged.Through X2 communication,the private network and the public network decide whether to schedule the corresponding resource block resources,so as to achieve dynamic bandwidth adjustment and spectrum sharing.