Wireless local area network-based position locating systems and methods

A system for determining location and timing information in a wireless local area network (WLAN), the system comprising:

• a plurality of nodes to communicate wirelessly through the WLAN, each node comprising a respective ping driver to generate ping event values corresponding to ping events related to transmit count stamps and receive count stamps for wireless messages exchanged between the nodes in the WLAN, each wireless message associated with a transmit offset corresponding to an expected transmit time;
• a sorting module to:
• sort the ping event values corresponding to multiple ones of the ping events that occur within a first predetermined time period;
• based on the sorted ping event values, produce a difference between the respective receive count stamps and the transmit count stamps for each wireless message;
• and
• based on the sorted ping event values, generate transmit offset values relating to the transmit offsets;
• and
• a space-time calibration unit to generate, from the sorted differences and the transmit offset values, a clock rate solution and a location solution for at least one of the nodes in the WLAN.