高通量卫星通信系统移动用户越区切换测试方法

A Testing Method for Mobile User Handoff in High-throughput Satellite Communication System

高通量卫星通信系统使用的点波束和频率复用技术大幅提高系统容量的同时,带来了车载终端、机载终端、船载终端类用户在组网通信时需要进行移动切换的难题。为在室内环境下测试移动用户的越区切换策略,结合卫星信道特性,提出了一种测试环境构建方法,模拟了移动用户在多个波束覆盖的交叠区域跨越波束场景。测试结果表明,该方法能够有效构建越区切换场景,解决测试难题。

While the technologies of spot beam and frequency reuse in high-throughput satellite communication system can greatly improve the system capacity,the problem of handoff should also be solved with vehicular and airborne and shipborne terminal users moving among different beams.In order to test handoff strategies of mobile users in the indoor environment,a testing environment is built based on the characteristics of satellite channels,simulating the scenario in which mobile users move across different beams in the overlapping area covered with multiple beams.The testing results show that the handoff scenario can be effectively built through this method,solving the testing problem.