FOCUSED ASSISTANCE DATA FOR WIFI ACCESS POINTS AND FEMTOCELLS

摘要

Systems, apparatus and methods for reducing a long list of access points (APs) to a short list of access points are presented. Advantageously, a mobile device only need to search for access points on the short list thereby more quickly discovering access points, saving battery power, determining a position fix based on the discovered access points, and reducing a time to fix. Embodiments enable a mobile device to determine which access points should be detectable at a new location of the mobile device. Various embodiments comprise: (1) a linked database; (2) a grouped database; (3) an associated database; and (4) database feedback.

主权项

1. A method in a location server for determining a position fix of a mobile device in a wireless network, the method comprising:
receiving, from the mobile device, a rough position; determining a database based on the rough position; and sending, to the mobile device, the database; wherein the database comprises one of a linked database, a grouped database, or an associated database.