Developed and evaluation satellite/terrestrial integrated coordinate control simulator

摘要

Importance of social role using mobile communication services has increased consecutively. Correspondence of mission- critical cases especially disaster prevention, disaster mitigation and safety measure are especially important. We have a goal to make a social contribution by mobile communication infrastructure using a new satellite system named STICS (Satellite/Terrestrial Integrated mobile Communication System). STICS is a system which realizes seamless disaster-resistant mobile communication infrastructure by integrating both terrestrial communication system and satellite communication system controls, and requires some technologies to control extremely various functions in a coordinated manner. Therefore we developed a satellite/terrestrial integrated coordinate control simulator which has three functions: simulation of mobile communication environment, coordination control of communication system and evaluation of the calculated results of system analysis. The simulator can simulate the whole systems including terrestrial system, satellite system, and the coordination control between satellite and terrestrial systems. The simulator can also simulate the resource coordinate control (handover control) between satellite and terrestrial systems depending on the real-time traffic condition where the speed of mobile terminals can be set flexibly.