Optical space communication management device, optical space communication system, and optical space communication management method

An optical space communication system comprising:

• optical space communication devices installed in at least one of a satellite and a flying object of a non-terrestrial node group, and an optical ground station, the optical space communication devices performing an optical space communication using one or a plurality of links;
• and
• an optical space communication management device that performs a link control based on link path information and a link parameter, the link path information and the link parameter being for transmitting and receiving communication service data based on service requests of the plurality of links and link monitoring information of the plurality of links, the service requests and the link monitoring information being received from at least one of the satellite and the flying object of the non-terrestrial node group, and the optical ground station, wherein
• the optical space communication management device includes:
• a service request collection unit that collects a predetermined value of the service requests;
• a link monitoring unit that measures propagation delay time of the plurality of links between the optical space communication devices between which the communication service data is transmitted and received;
• a position calculation unit that calculates position information of at least one of the satellite and the flying object;
• a link parameter calculation unit that calculates a number of relays of the link path information and the link parameter based on the position information calculated by the position calculation unit and the propagation delay time measured by the link monitoring unit, and parameters for each optical modulation signal of the link parameter based on the predetermined value collected by the service request collection unit;
• a link control unit that performs the link control to the optical space communication devices based on the link path information and the link parameter calculated by the link parameter calculation unit;
• and
• a link information communication unit that communicates the service request, the link monitoring information, the link path information, and the link parameter with at least one of the satellite and the flying object of the non-terrestrial node group and the optical ground station, and
• the optical space communication devices are controlled by the link control based on the link path information and the link parameter from the optical space communication management device, and transmit and receive an optical modulation signal including the communication service data.

An optical space communication management method in an optical space communication management device that performs a link control to optical space communication devices based on link path information and a link parameter, the optical space communication devices being installed in at least one of a satellite and a flying object of a non-terrestrial node group, and an optical ground station, the optical space communication devices performing an optical space communication using one or a plurality of links, the link path information and the link parameter being for transmitting and receiving communication service data based on service requests of the plurality of links and link monitoring information of the plurality of links, the service requests and the link monitoring information being received from at least one of the satellite and the flying object of the non-terrestrial node group, and the optical ground station, the optical space communication management method comprising:

• a first step of measuring propagation delay time of the plurality of links between the optical space communication devices between which the communication service data is transmitted and received;
• a second step of collecting a predetermined value of the service requests;
• a third step of calculating position information of at least one of the satellite and the flying object;
• a fourth step of calculating a number of relays of the link path information and the link parameter based on the position information calculated by the third step, the predetermined value of the service requests collected by the second step, the propagation delay time measured by the first step, and parameters for each optical modulation signal of the link parameter based on the predetermined value of the service requests collected by the second step;
• a fifth step of performing the link control to the optical space communication devices based on the link path information and the link parameter calculated by the fourth step;
• and
• a sixth step of communicating the service request, the link monitoring information, the link path information, and the link parameter link information with at least one of the satellite and the flying object of the non-terrestrial node group, and the optical ground station.