GEO tagging using location estimation
First Claim
Patent Images
1. A method, comprising:
- receiving, at a mobile station, a first message from a base station, the first message including a first system identifier (SID) and other information;
identifying a first geographic coordinate based on the other information;
updating, by the mobile station, a database by associating the first SID with the first geographic coordinate, the database being stored within the mobile station and including a set of SIDs, each SID of the set of SIDs being associated via the database with a respective geographic coordinate;
querying the updated database to identify a subset of the set of SIDs based on a detected location of the mobile station, each SID in the subset of SIDs being associated with a respective geographic coordinate corresponding to the first geographic coordinate;
identifying a first scan list based on a GEO Locate Table of the mobile station, the first scan list being associated with one or more networks; and
using, by the mobile station, the identified subset of the set of SIDS and the first scan list to create a second scan list that is associated with the one or more networks and that is based on the first geographic coordinate, wherein the second list is smaller than the first list.
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Abstract
A current location of a mobile system in a wireless network can be determined by using information provided by a base station in communication with the mobile system. The location information can be used to index a GEO Locate Table to determine a list of SIDs to populate an optimized scan list. The optimized scan list being used for system selection.
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Citations
31 Claims
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1. A method, comprising:
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receiving, at a mobile station, a first message from a base station, the first message including a first system identifier (SID) and other information; identifying a first geographic coordinate based on the other information; updating, by the mobile station, a database by associating the first SID with the first geographic coordinate, the database being stored within the mobile station and including a set of SIDs, each SID of the set of SIDs being associated via the database with a respective geographic coordinate; querying the updated database to identify a subset of the set of SIDs based on a detected location of the mobile station, each SID in the subset of SIDs being associated with a respective geographic coordinate corresponding to the first geographic coordinate; identifying a first scan list based on a GEO Locate Table of the mobile station, the first scan list being associated with one or more networks; and using, by the mobile station, the identified subset of the set of SIDS and the first scan list to create a second scan list that is associated with the one or more networks and that is based on the first geographic coordinate, wherein the second list is smaller than the first list. - View Dependent Claims (2, 3, 4, 5, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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6. A wireless mobile station, comprising:
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a wireless interface, the wireless interface configured for wirelessly communication with wireless base stations; a memory device, the memory device arranged to store data, the data including at least a database, the database including a set of SIDs, each SID of the set of SIDs being associated via the database with a respective geographic coordinate; and a processor, the processor coupled to the wireless interface and the memory device, the processor configured to acquire access to a preferred system by; analyzing and other information of a first message received at the wireless mobile station from a wireless base station, the content including a first SID and other information; identifying, based on the analysis, a first geographic coordinate; updating the database by associating the first SID with the first geographic coordinate; querying the updated database to identify a subset of the set of SIDs based on a detected location of the mobile station, each SID in the subset of SIDs being associated with a respective geographic coordinate corresponding to the first geographic coordinate; identifying a first scan list based on a GEO Locate Table of the mobile station, the first scan list being associated with one or more networks; and using the identified subset of the set of SIDS and the first scan list to create a second scan list that is associated with the one or more networks and that is based on the first geographic coordinate, wherein the second list is smaller than the first list. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. Non-transitory computer readable medium for storing computer code executable by a processor in a mobile station, the medium comprising code that, when executed:
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analyzes content of a first message received at the wireless mobile station from a wireless base station, the content including a first SID and other information; identifies, based on the analysis, a first geographic coordinate; updates a database by associating the first SID with the first geographic coordinate, the database being stored within the mobile station and including a set of SIDs, each SID of the set of SIDs being associated via the database with a respective geographic coordinate; queries the updated database to identify a subset of the set of SIDs based on a detected location of the mobile station, each SID in the subset of SIDs being associated with a respective geographic coordinate corresponding to the first geographic coordinate; identifies a first scan list based on a GEO Locate Table of the mobile station, the first scan list being associated with one or more networks; and uses the identified subset of the set of SIDS and the first scan list to create a second scan list that is associated with the one or more networks and that is based on the first geographic coordinate, wherein the second list is smaller than the first list. - View Dependent Claims (14, 15, 16, 17)
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18. A wireless network, comprising:
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a base station; and a mobile system, wherein the mobile system having a processor configured to; analyze content of a first message received at the wireless mobile station from the base station, the content including a first SID and other information; identify, based on the analysis, a first geographic coordinate; update a database by associating the first SID with the first geographic coordinate, the database being stored within the mobile station and including a set of SIDs, each SID of the set of SIDs being associated via the database with a respective geographic coordinate; query the updated database to identify a subset of the set of SIDs based on a detected location of the mobile station, each SID in the subset of SIDs being associated with a respective geographic coordinate corresponding to the first geographic coordinate; identify a first scan list based on a GEO Locate Table of the mobile station, the first scan list being associated with one or more networks; and use the identified subset of the set of SIDS and the first scan list to create a second scan list that is associated with the one or more networks and that is based on the first geographic coordinate, wherein the second list is smaller than the first list. - View Dependent Claims (19, 20, 21, 22)
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Specification