AREA-BASED POSITIONING METHOD IN MOBILE COMMUNICATIONS SYSTEM
First Claim
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1. An area-based positioning method for a mobile communications system wherein said system is conformed to the existing Open Mobile Alliance SUPL standard, the method performed by a server and comprising:
- sending a SUPL INIT message to a SET in order to initiate a SUPL procedure for an area event triggered session, based upon a positioning request for the SET, the SUPL INIT message comprising a session-id, an intended positioning method, a proxy/non-proxy mode indicator, and a trigger type indicator;
sending a SUPL TRIGGERED RESPONSE message to the SET in response to receiving a SUPL TRIGGERED START message from the SET in order to start an area event triggered session with the SET,wherein the SUPL TRIGGERED START message comprising a session-id, a location-id, and SET capabilities, and the SUPL TRIGGERED RESPONSE message comprises at least one of a session-id, a positioning method, trigger parameters, and location identifiers of an area specified for the area event triggered session;
receiving a SUPL POS INIT message from the SET to start the area event triggered session, when a comparison performed by the SET of a current area-id and the location identifiers of the area specified for the area event triggered session indicates that positioning of the SET is to be executed;
exchanging position procedure messages with the SET during the positioning session;
calculating actual positioning information indicating longitudinal and latitudinal values of the SET that operates in SET-assist mode;
sending a SUPL REPORT message to the SET, the SUPL REPORT message including the session-id and the calculated actual positioning information of the SET, in order to allow the SET to compare the calculated actual positioning information with the trigger parameters; and
receiving a SUPL REPORT message from the SET, the SUPL REPORT message including the session-id and the calculated actual positioning information of the SET, if the calculated actual positioning information indicates that the trigger parameters are satisfied by the SET.
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Abstract
A positioning method in a SUPL based position information (positioning) system, and particularly a positioning method capable of variously efficiently performing an area-based positioning (location tracking) performed by a location server or a mobile communications terminal when the location server and the mobile communications terminal respectively manage triggers generating the area-based positioning.
39 Citations
22 Claims
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1. An area-based positioning method for a mobile communications system wherein said system is conformed to the existing Open Mobile Alliance SUPL standard, the method performed by a server and comprising:
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sending a SUPL INIT message to a SET in order to initiate a SUPL procedure for an area event triggered session, based upon a positioning request for the SET, the SUPL INIT message comprising a session-id, an intended positioning method, a proxy/non-proxy mode indicator, and a trigger type indicator; sending a SUPL TRIGGERED RESPONSE message to the SET in response to receiving a SUPL TRIGGERED START message from the SET in order to start an area event triggered session with the SET, wherein the SUPL TRIGGERED START message comprising a session-id, a location-id, and SET capabilities, and the SUPL TRIGGERED RESPONSE message comprises at least one of a session-id, a positioning method, trigger parameters, and location identifiers of an area specified for the area event triggered session; receiving a SUPL POS INIT message from the SET to start the area event triggered session, when a comparison performed by the SET of a current area-id and the location identifiers of the area specified for the area event triggered session indicates that positioning of the SET is to be executed; exchanging position procedure messages with the SET during the positioning session; calculating actual positioning information indicating longitudinal and latitudinal values of the SET that operates in SET-assist mode; sending a SUPL REPORT message to the SET, the SUPL REPORT message including the session-id and the calculated actual positioning information of the SET, in order to allow the SET to compare the calculated actual positioning information with the trigger parameters; and receiving a SUPL REPORT message from the SET, the SUPL REPORT message including the session-id and the calculated actual positioning information of the SET, if the calculated actual positioning information indicates that the trigger parameters are satisfied by the SET. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An area-based positioning method for a mobile communications system wherein said system is conformed to the existing Open Mobile Alliance SUPL standard, the method performed by a SUPL Enabled Terminal (SET) and comprising:
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receiving a SUPL INIT message from a server in order to initiate a SUPL procedure for an area event triggered session, based upon a positioning request for the SET, the SUPL INIT message comprising a session-id, an intended positioning method, a proxy/non-proxy mode indicator, and a trigger type indicator; receiving a SUPL TRIGGERED RESPONSE message from the server in response to sending a SUPL TRIGGERED START message to the server in order to start an area event triggered session with the SET, wherein the SUPL TRIGGERED START message comprising a session-id, a location-id, and SET capabilities, and the SUPL TRIGGERED RESPONSE message comprises at least one of a session-id, a positioning method, trigger parameters, and location identifiers of an area specified for the area event triggered session; sending a SUPL POS INIT message to the server to start the area event triggered session, when a comparison performed by the SET of a current area-id and the location identifiers of the area specified for the area event triggered session indicates that positioning of the SET is to be executed; exchanging, with the server, positioning procedure messages to calculate actual positioning information indicating longitudinal and latitudinal values of the SET when the SET operates in SET-assist mode; comparing the calculated actual positioning information with the trigger parameters after receiving a SUPL REPORT message from the server, the SUPL REPORT message including the session-id and the calculated actual positioning information of the SET; and sending a SUPL REPORT message to the server, the SUPL REPORT message including the session-id and the calculated actual positioning information of the SET, if the calculated actual positioning information indicates that the trigger parameters are satisfied by the SET. - View Dependent Claims (10, 11, 12, 13)
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14. An area-based positioning method for a mobile communications system wherein said system is conformed to the existing Open Mobile Alliance SUPL standard, the method performed by a server and comprising:
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receiving a SUPL TRIGGERED START message from the SET in order to start an area event triggered session with the SET, wherein the SUPL TRIGGERED START message comprises a session-id, a location-id, trigger type indicator, SET capabilities and trigger parameters; sending, to the SET, a SUPL TRIGGERED RESPONSE message that includes at least one of a session-id, a positioning method and location identifiers of an area specified for the trigger parameters; receiving a SUPL POS INIT message from the SET to start a positioning session when a current area-id and at least one of the location identifiers matches with each other; exchanging position procedure messages with the SET during the positioning session to calculate actual positioning information indicating longitudinal and latitudinal values of the SET; and calculating actual positioning information indicating longitudinal and latitudinal values of the SET that operates in SET-assist mode; receiving a SUPL END message from the SET to end the area event triggered session. - View Dependent Claims (15, 17)
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16. The method of claim 14, wherein the trigger parameters include information about a specific area and condition information about whether the SET has moved into or out of a specified area or positioned in the specified area.
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16-1. An area-based positioning method for a mobile communications system wherein said system is conformed to the existing Open Mobile Alliance SUPL standard, the method performed by a SUPL Enabled Terminal (SET) and comprising:
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sending a SUPL TRIGGERED START message to a server in order to start an area event triggered session with the SET, wherein the SUPL TRIGGERED START message comprises a session-id, a location-id, trigger type indicator, SET capabilities and trigger parameters; receiving, from the server, a SUPL TRIGGERED RESPONSE message that includes at least one of a session-id, a positioning method and location identifiers of an area specified for the trigger parameters; sending a SUPL POS INIT message to the server to start a positioning session when a current area-id and at least one of the location identifiers matches with each other; exchanging position procedure messages with the server during the positioning session to calculate actual positioning information indicating longitudinal and latitudinal values of the SET when the SET operates in SET-assist mode; and sending a SUPL END message to the server to end the area event triggered session.
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19. The method of claim 18, wherein the trigger type indicator indicates an area event.
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20. The method of claim 18, wherein the trigger parameters include information about a specific area and condition information about whether the SET has moved into or out of a specified area or positioned in the specified area.
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21. The method of claim 18, wherein the location identifiers comprise at least one of cell id(s) belonging to the positioning-requested area, Mobile Country Code (MCC), Mobile Network Code (MNC), Location Area Code (LAC), a scrambling code number, and a primary scrambling code number.
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22. The method of claim 18, further comprising:
forwarding the calculated actual positioning information to an internal agent within the SET.
Specification