Method of clock synchronization between transmitter and receiver

A method of clock synchronization between a transmitter and a receiver, comprising:

• sampling a first receiver timestamp and a second receiver timestamp of the receiver at a first time and a second time respectively;
• sampling a first transmitter timestamp and a second transmitter timestamp of the transmitter at a third time and a fourth time respectively;
• sampling a first timing synchronization function (TSF) receiver timestamp and a second TSF receiver timestamp by a Wi-Fi TSF at the first time and the second time respectively;
• sampling a first TSF transmitter timestamp and a second TSF transmitter timestamp by the Wi-Fi TSF at the third time and the fourth time respectively;
• generating an initial timestamp according to the first receiver timestamp and the first transmitter timestamp;
• generating an initial TSF timestamp according to the first TSF receiver timestamp and the first TSF transmitter timestamp;
• generating a target phase difference according to the initial timestamp, the initial TSF timestamp, the first receiver timestamp, the second receiver timestamp, the first TSF receiver timestamp, the second TSF receiver timestamp, the second TSF transmitter timestamp, and the second transmitter timestamp;
• and
• performing a coarse tune at a receiver system clock periodically to compensate the target phase difference.