×

Wireless local area network-based position locating systems and methods

  • US 9,014,162 B2
  • Filed: 05/28/2013
  • Issued: 04/21/2015
  • Est. Priority Date: 12/07/2006
  • Status: Active Grant
First Claim
Patent Images

1. A method for determining location and timing information of one or more nodes in a wireless local area network (WLAN), the method comprising:

  • generating ping event values corresponding to ping events related to transmit count stamps and receive count stamps for wireless messages exchanged between nodes in the WLAN;

    sorting the ping event values corresponding to multiple ones of the ping events that occur within a first predetermined time period;

    for ping event values within the first predetermined time period, producing differences between the respective receive count stamps and the transmit count stamps for each wireless message, and generating transmit offset values; and

    generating, from the produced differences and the transmit offset values, a clock rate solution and a location solution for at least one of the nodes in the WLAN.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×