LOCATION SERVICE PROVIDING SYSTEM AND METHOD FOR PROVIDING TRIGGERED LOCATION REQUEST SERVICE
First Claim
1. A location information providing system comprising:
- a location server for receiving information for location calculating methods which a target terminal of a location information providing service supports from the target terminal, transmitting at least one location calculating method to the target terminal, and selecting any one of the received positioning methods when information for at least one available positioning method is received from the target terminal to calculate a location of the target terminal; and
a target terminal for transmitting the information for the positioning methods capable of supporting the location server, receiving the information for the at least one positioning method which the location server supports from the location server, extracting and transmitting positioning methods among the received information that can be used in an electric wave environment of the target terminal to the location server, and using a positioning method selected by the location server for providing a location service.
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Accused Products
Abstract
Disclosed are a location service providing system and a method for providing a triggered location request service. An H-SLP sets a priority order of a plurality of positioning methods which a target terminal supports according to a set priority order set condition and transmits priority order information according to respective positioning methods to the target terminal. Further, the target terminal may receive information about the positioning methods including the priority order and select a positioning method having the highest priority order among the positioning methods, which can be used in its current electric wave environment. Moreover, the H-SLP and the target terminal may calculate a location of the target terminal according to a positioning method that the target terminal has selected. Accordingly, although it is difficult to calculate the location of the target terminal according to the positioning method that the target terminal has selected, a location service of the target terminal can be continuously provided.
29 Citations
26 Claims
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1. A location information providing system comprising:
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a location server for receiving information for location calculating methods which a target terminal of a location information providing service supports from the target terminal, transmitting at least one location calculating method to the target terminal, and selecting any one of the received positioning methods when information for at least one available positioning method is received from the target terminal to calculate a location of the target terminal; and a target terminal for transmitting the information for the positioning methods capable of supporting the location server, receiving the information for the at least one positioning method which the location server supports from the location server, extracting and transmitting positioning methods among the received information that can be used in an electric wave environment of the target terminal to the location server, and using a positioning method selected by the location server for providing a location service. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 26)
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11. A terminal for providing a location information service comprising:
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a memory unit for storing at least one positioning method that a target terminal supports; a selector for selecting at least one positioning method among the positioning methods stored in the memory unit which can be used in a current electric wave environment state; a message generator for generating messages to be transmitted to the location server including information with respect to the positioning methods; and a controller for controlling the at least one positioning method selected by the selector, among the positioning methods that the target terminal and the location server support. - View Dependent Claims (12, 13)
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14. A method for providing a location information providing service to a target terminal, the method comprising the steps of:
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(i) transmitting an initial location service request message to the target terminal by a location server; (ii) transmitting a location information providing service start message including information with respect to positioning methods that the target terminal supports to the location server by the target terminal in response to the initial location service request message; (iii) transmitting a location information providing service response message including information with respect to the positioning methods that the target terminal supports among the positioning methods including the location information providing service start message to the target terminal by the location server; (iv) selecting positioning methods being able to be used in a current electric wave environment of the target terminal among at least one positioning method included in the location providing service response message, and transmitting information with respect to the selected positioning methods to the location server by the target terminal; and (v) selecting any one among the positioning methods received from the target terminal, and calculating a location of the target terminal according to the selected positioning method by the location server. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification