Patent ID: 8320934

Claim:
A dynamic almanac system comprising: machine-readable media having stored thereon first location information indicative of a position of an uncooperative base station, the first location information being based at least in part on information from a user-controlled wireless device in a first position, the information from the user-controlled wireless device being received through one or more cooperative base stations facilitating voice and data traffic between the user-controlled wireless device and the one or more cooperative base stations, the user-controlled wireless device to receive one or more signals indicative of an identifier from the uncooperative base station, the uncooperative base station to not facilitate voice and data traffic from the user-controlled wireless device in the first position through the uncooperative base station, second location information indicative of the position of the uncooperative base station, the second location information based at least in part on information from a wireless device in a second position, and third location information indicative of the position of the uncooperative base station, the third location information based at least in part on information from a wireless device in a third position; and an almanac processor to access the first, second, and third location information and calculate measured location information of the uncooperative base station using the first, second, and third location information and information indicative of the first, second, and third positions, the almanac processor further to assign a location uncertainty factor to the measured location information of the uncooperative base station and update an almanac using the measured location information of the uncooperative base station, the location uncertainty factor being indicative of range measurement inaccuracies associated with the wireless devices in the first, second, and third positions.