Data transmission method and system for low-orbit satellite, electronic device, and storage medium

A data transmission system for low-orbit satellite, comprising:

• a receiving unit configured to receive a channel occupancy rate of a first preset number of sending cycles corresponding to each channel, wherein the channel occupancy rate is sent by a low-orbit satellite;
• a first determination unit configured to determine, based on the channel occupancy rate of the preset number of sending cycles, a probability of allowing the terminal to send corresponding to each channel;
• and
• a second determination unit configured to obtain a random number, and determine, based on a low order byte of the random number and the probability of allowing the terminal to send, a sending authority of the ground communication terminal;
• wherein the first determination unit is further configured to:
• obtain a target channel occupancy rate;
• determine, based on the target channel occupancy rate and the channel occupancy rate of the first preset number of sending cycles, a difference value in the channel occupancy rate corresponding to the first preset number of sending cycles;
• and
• determine, based on the difference value in the channel occupancy rate, the probability of allowing the terminal to send.

An electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when executing the computer program, the processor implements a data transmission method for low-orbit satellite,

• wherein the data transmission method for low-orbit satellite comprises:
• receiving a channel occupancy rate of a first preset number of sending cycles corresponding to each channel, wherein the channel occupancy rate is sent by a low-orbit satellite;
• determining, based on the channel occupancy rate of the preset number of sending cycles, a probability of allowing the terminal to send corresponding to each channel;
• and
• obtaining a random number, and determining, based on a low order byte of the random number and the probability of allowing the terminal to send, a sending authority of the ground communication terminal;
• wherein the determining, based on the channel occupancy rate of the preset number of sending cycles, the probability of allowing the terminal to send corresponding to each channel comprises:
• obtaining a target channel occupancy rate;
• determining, based on the target channel occupancy rate and the channel occupancy rate of the first preset number of sending cycles, a difference value in the channel occupancy rate corresponding to the first preset number of sending cycles;
• and
• determining, based on the difference value in the channel occupancy rate, the probability of allowing the terminal to send.