Method and system for accurate clock synchronization through interaction between communication layers and sub-layers for communication systems

A wireless communication system, comprising:

• a wireless transmitter;
• and
• a wireless receiver;
• the wireless transmitter comprising a synchronization module configured to transmit a synchronization frame to the wireless receiver over a wireless communication medium, the synchronization frame including a timestamp comprising a transmitting time indicating the transmitter local time when a symbol at a predefined position of the synchronization frame is placed on the wireless communication medium for transmission;
• the wireless receiver comprising a synchronization module configured to determine a receiving time comprising the receiver local time when said symbol of the synchronization frame was received from the wireless communication medium at the physical layer of the receiver, and to provide the received synchronization frame to a higher communication layer at the receiver, wherein the synchronization frame arrives at said higher communication layer at an arriving time indicating a receiver local time at which the synchronization frame arrived at said higher layer;
• the receiver synchronization module time synchronizing the receiver with the transmitter by:
• determining a difference between said timestamp and said receiving time;
• and
• adjusting the receiver local time with said difference to time synchronize the receiver with the transmitter.

A wireless receiver, comprising:

• a physical (PHY) layer for wireless communication. Including receiving a synchronization frame from a wireless transmitter over a wireless communication medium, the synchronization frame including a timestamp comprising a transmitting time indicating the transmitter local time when a symbol at a predefined position of the synchronization frame is placed on the wireless communication medium for transmission to the receiver;
• and
• a synchronization module configured to determine a receiving time comprising the receiver local time when said symbol of the synchronization frame was received from the wireless communication medium at the physical layer of the receiver, and to provide the received synchronization frame to a higher communication layer at the receiver, wherein the synchronization frame arrives at said higher communication layer at an arriving time indicating a receiver local time at which the synchronization frame arrived at said higher layer;
• the receiver synchronization module time synchronizing the receiver with the transmitter by:
• determining a difference between said timestamp and said receiving time;
• and
• adjusting the receiver local time with said difference to time synchronize the receiver with the transmitter.