A method and apparatus for locating mobile device over a broad coverage area using a wireless communications link that may have large and unknown latency. The apparatus comprises at least one mobile device, a reference network, a position server, a wireless carrier, and a location requester. The mobile...http://www.google.de/patents/US6853916?utm_source=gb-gplus-sharePatent US6853916 - Method and apparatus for forming a pseudo-range model
