Patent ID: 8625490

Claim:
A method executed by a mobile device, comprising: determining a first current location of the mobile device using a first current code division multiple access (CDMA) identifier, the first current CDMA identifier being associated with at least a portion of a CDMA system and corresponding to a first location, the first location having a first granularity; and in response to a request to determine a current location at a location granularity finer than the first granularity: determining a second current location of the mobile device using a second current CDMA identifier, the second current CDMA identifier corresponding to a second location, the second location having a second granularity that is finer than the first granularity, wherein the second current CDMA identifier is associated with a subset of the portion of the CDMA system; and providing the second current location for display on the mobile device, wherein: the first current CDMA identifier and the second current CDMA identifier are received from a same signal source; the first current CDMA identifier is different from the second current CDMA identifier; and each of the first current CDMA identifier and the second current CDMA identifier is one of a system identifier, a network identifier, a zone identifier, or a base station identifier, each of the system identifier, network identifier, zone identifier, and base station identifier being associated with a respective known or estimated location, each respective known or estimated location having a different level of granularity.