Patent ID: 7826844

Claim:
A method of selecting a desirable system from a list of wireless communications systems stored in a mobile station, comprising the steps of: maintaining, in the mobile station, a system priority data table based on acquisition/registration attempts by the mobile station with wireless communication systems, the system priority data table including a plurality of entries, each entry representing a single system acquisition/registration attempt by the mobile station and including a signal acquisition identifier, a power measurement, a system access identifier, and a system lost identifier; generating a priority data summary table in the mobile station using priority criteria determined from the system priority data table, the priority data summary table including an acquisition success rate field, a last power measurement field, an access success rate field, and a system lost rate field; predicting whether a future system acquisition/registration attempt on a selected wireless communications system is likely to be successful based on the priority data summary table; predicting whether the selected wireless communications system is likely to be useable if the future system acquisition/registration attempt is successful based on the priority data summary table; selecting, by the mobile station, a group of wireless communications systems from the list of wireless communications systems stored in the mobile station in accordance with a predetermined system selection procedure, the group of wireless communications systems having a first system acquisition order; reprioritizing, by the mobile station, the group of wireless communications systems in accordance with the priority data summary table, the reprioritized group of wireless communications systems having a second system acquisition order based upon the likelihood of system acquisition/registration and the likelihood of usability; and attempting, by the mobile station, to acquire a desirable system based on the reprioritized group of wireless communications systems.