基于跳波束的手机直连与FSS系统的同频共存研究  

Research on the Coexistence of Direct-to-cell System with JumpingBeam and Fixed Satellite Service System

作　　者：石会鹏 周道博 刘珊杉 陶洪波 SHI Huipeng;ZHOU Daobo;LIU Shanshan;TAO Hongbo(School of Computer and Communication Engineering,University of Science and Technology Beijing,Beijing 100083,China;The State Radio-Monitoring-Center Testing Center,Beijing 100037,China;School of Information and Communication Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China)

机构地区：[1]北京科技大学计算机与通信工程学院,北京100083 [2]国家无线电监测中心检测中心,北京100037 [3]北京邮电大学信息与通信工程学院,北京100876

出　　处：《无线电通信技术》2024年第6期1093-1100,共8页Radio Communications Technology

摘　　要：针对基于跳波束的卫星手机直连系统,研究与卫星固定业务(Fixed Satellite Service,FSS)系统间的共存可行性。分析了跳波束卫星系统与FSS系统的共存场景以及仿真研究方法,通过时间步进的仿真方法对FSS系统受到的下行干扰进行了仿真分析。在此基础上评估了多种干扰缓解策略保护FSS系统的效果,主要包括地理隔离、基于星历或概率信息的波束关闭以及基于干扰程度预测的动态功率控制策略。研究结果表明,采取适当的干扰缓解措施后,基于跳波束的手机直连卫星系统能够与FSS系统很好地协调共存。This study examines the feasibility of coexistence between satellite direct-to-cell systems based on hopping beams and Fixed Satellite Service(FSS)systems.It analyzes coexistence scenarios between hopping beam satellite systems and FSS system as well as simulation research methods.Additionally,the study includes a simulation analysis of the downlink interference experienced by FSS system.Based on this,various interference mitigation strategies were evaluated for their effectiveness in protecting FSS system.This mainly includes geographic isolation,beam shut-off based on ephemeris or statistics information,and dynamic power control strategies based on interference level prediction.Final results indicate that,with appropriate interference mitigation measures,satellite direct-to-cell system based on hopping beams can successfully coordinate and coexist with FSS system.

关 键 词：手机直连卫星 卫星固定业务系统 跳波束 干扰缓解 

分 类 号：TN927.2[电子电信—通信与信息系统]