一种基于无线链路监测的手机直连卫星业务捕获系统实现及应用

Implementation and Application of One Mobile Phone Direct Connection Satellite Service Acquisition System Based on Wireless Link Monitoring

手机直连卫星技术的发展将带来10亿量级的用户,给人们带来便利通信的同时,也给信息安全带来严重考验。针对此,设计了一套无线链路监测的卫星业务捕获系统,用以获取商用手机的卫星话音、短消息等业务。与地面移动系统DU-CU模式相似,系统射频和基带处理部分以分布式形式安装在室外信号塔,业务处理部分集中安装在机房,可完成多个无线接收点的业务处理。测试表明,系统能够正常截获卫星手机通话业务,并能存储和回放。

The development of mobile phone direct connection satellite technology will bring billions of users,which not only facilitates communication but also poses a serious challenge to information security.For this situation,a satellite service acquisition system for wireless link monitoring is designed to obtain satellite voice,short message and other services for commercial mobile phones.Similar to the DU-CU mode of ground mobile systems,the RF and baseband processing parts of the system are installed in a distributed form in outdoor signal towers,while the business processing part is centrally installed in the computer room to complete the business processing of multiple wireless receiving points.Tests have shown that the system can intercept satellite phone call services normally,and can store and replay them.