Offloading method, of satellite-to-ground edge computing task, assisted by satellite and high-altitude platform

An offloading method, of a satellite-to-ground edge computing task, assisted by a satellite and a high-altitude platform, wherein comprising the following steps:

• step A:
• acquiring, by a low earth-orbit satellite (LEO SAT), a related information in a system;
• step B:
• selecting, by the LEO SAT according to an acquired related information, a proper high-altitude platform for a ground user to associate with according to a method for associating the ground user with the high-altitude platform;
• step C:
• offloading a computing task to an associated platform according to an association result between the ground user and the high-altitude platform by using a multi-input and multi-output (MIMO) transmission method;
• step D:
• dividing, by the high-altitude platform according to a result of a computing task allocation method after receiving the computing task of the ground user, the computing task of the ground user into two parts, that is, a task processed by the high-altitude platform and a task offloaded to the LEO SAT for processing;
• for the task processed by the high-altitude platform, allocating, by the high-altitude platform, a proper computing resource according to a computing resource allocation method to process the computing task of the ground user;
• and for the computing task offloaded to the LEO SAT, offloading, by the high-altitude platform, the computing task to the LEO SAT by using the MIMO transmission method;
• and
• step E:
• allocating, by the LEO SAT after receiving a task offloaded by the high-altitude platform, a computing resource to each of the computing task according to the computing resource allocation method, to complete the computing task.