Satellite communication method and apparatus

A communication apparatus, comprising:

• one or more processors and one or more memories storing a computer program including instructions that, when executed by the one or more processors, cause the one or more processors to:
• receive first information sent by a satellite, wherein the first information indicates a first timing change rate range;
• measure a downlink timing change rate to obtain a first downlink timing change rate;
• determine a first uplink timing change rate based on the first downlink timing change rate and the first timing change rate range, wherein a timing change rate is the first downlink timing change rate or a second uplink timing change rate determined based on the first downlink timing change rate, and wherein determining the first uplink timing change rate based on the first downlink timing change rate and the first timing change rate range comprises:
• determining the first uplink timing change rate based on the timing change rate when the timing change rate falls within the first timing change rate range;
• determining the first uplink timing change rate based on a maximum value of the first timing change rate range when the timing change rate is greater than the maximum value of the first timing change rate range;
• or
• determining the first uplink timing change rate based on a minimum value of the first timing change rate range when the timing change rate is less than the minimum value of the first timing change rate range;
• and
• perform uplink communication with the satellite based on the first uplink timing change rate.