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5Building the 2016 Kumamoto Earthquake emergency network using WINDSAer the foreshock occurred at 21:21 on April 12, 2016, and the main shock occurred at 1:25 on April 16, 2016, earthquakes occurred in Kumamoto and Oita Prefectures one aer another. 49 people in Kumamoto Prefecture died in crushed houses and by being involved in a sediment disaster by this series of earthquakes. Furthermore, almost 100 thousand cases of house damage arose with a focus on Kumamoto Prefecture [8].In addition, these earthquakes caused damage to a maximum 2,100 xed lines, and suspended the radios of a maximum 350 stations due to battery depletion by broken transmission paths and blackouts [9].On the other hand, aer the 2011 Great East Japan Earthquake, to realize a wireless network system resilient to disasters, NICT has carried out research and development regarding wireless systems, such as satellite communications and unmanned aircra system, and wireless networking technology where wireless terminals dispersedly arranged over a wide range autonomously operate in a coordinated way, and to enable more rapid emergency network-building when communication cuts occur extensively.In response to the Kumamoto Earthquakes, NICT sent materials and equipment, such as the mesh network and the vehicle earth stations for WINDS, which enable ultra-high-speed satellite communications, and dispatched re-searchers to Takamori Town, Kumamoto Prefecture, to build the emergency network and implement the operation.5.1Reason, purpose, and movement of dispatche Ministry of Internal Aairs and Communications sounded the NTT Network Innovation Laboratories to form a usage environment for the emergency network in disaster areas. NICT considered it as an important ap-proach for the demonstration of ICT restoration techniques at disaster areas for the activities of the resilient ICT center and for the demonstration of disaster-resistant technology by SIP. erefore, NICT jointly implemented it with the NTT Network Innovation Laboratories under the SIP framework.e contents of the emergency network-building were to build temporary lines until network recovery, to build phone lines by IP-PBX (NTT Network Innovation Laboratories), to provide internet connection service with the mesh network and to operate WINDS as backhaul.e dispatch was determined at around 19:00 on April 16 on which the main earthquake occurred, and the dis-patched personnel gathered by 12:00 on April 17. Aer preparing materials and equipment, at around 13:00 in the day, they departed the resilient ICT research center in Sendai.Although the initial planned dispatch site was Ube City whose municipal oce was damaged due to earthquake FiF15　Emergency network configuration using WINDSWINDSTown office of TakamoriKashima Space Technology CenterMBAkantobeamL2VPN51MV SATlarge-scale in-vehicle earth stationOptical lineGate WayInternetTelephone networkMBAKyushu beamRouterL2VPNL2VPNL2VPNAP for government (13:30)AP for residents (14:30)WINDS 973-3 Development and Demonstration Experiments on Satellite Communication Effective for Disaster Countermeasures