Frequency offset estimation method and apparatus, electronic device, and computer-readable storage medium

An electronic device, comprising:

• at least one processor;
• and
• a memory having at least one computer program stored thereon, the at least one computer program, executed by the at least one processor, causes the at least one processor to implement;
• adopting a first frequency offset estimation method to perform frequency offset estimation on a demodulation reference signal (DMRS) sent from a terminal, to obtain a first frequency offset estimated value;
• adopting a second frequency offset estimation method to perform frequency offset estimation on the DMRS sent from the terminal, to obtain a second frequency offset estimated value;
• and
• determining a confidence factor according to the first frequency offset estimated value and the second frequency offset estimated value, and calibrating the second frequency offset estimated value according to the confidence factor to obtain a final frequency offset estimated value.

A non-transitory computer-readable storage medium having a computer program stored thereon, the computer program, executed by a processor, causes the processor to implement;

• adopting a first frequency offset estimation method to perform frequency offset estimation on a demodulation reference signal (DMRS) sent from a terminal, to obtain a first frequency offset estimated value;
• adopting a second frequency offset estimation method to perform frequency offset estimation on the DMRS sent from the terminal, to obtain a second frequency offset estimated value;
• and
• determining a confidence factor according to the first frequency offset estimated value and the second frequency offset estimated value, and calibrating the second frequency offset estimated value according to the confidence factor to obtain a final frequency offset estimated value.