1. A method in a mobile device for determining a position fix in a wireless network, the method comprising: determining a rough position; receiving, at the mobile device, a database from a location server, wherein the database is based on the rough position, wherein the database lists a first set of access points associated with the rough position, and wherein the database comprises at least one of a linked database, a grouped database, or an associated database; and discovering a second set of access points based on the first set of access points.