LOCATION POSITIONING METHOD IN HANDOVER BETWEEN NETWORKS
First Claim
1. A mobile terminal for providing a location positioning service for a target area, comprising:
- a controller configured to request a SUPL position initiation request message to a server of a first network during an on going periodic or area event session with a second network, to receive a SUPL end message from the first network server including a parameter indicating that a reason for sending the SUPL end message is no coverage, and to transmit a SUPL triggered start message to the first network server, the SUPL triggered start message including a parameter indicating a cause for sending the SUPL triggered start message is no coverage,the controller configured to receive a SUPL triggered response message including at least one new trigger parameter associated with a third network from the first network server, and to continue to perform a periodic or area event session with the third network using the received at least one new trigger parameter.
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Accused Products
Abstract
Disclosed is a location information system based upon a SUPL (Secure User Plane Location) architecture, and more particularly, to a location positioning method and terminal based on an area event in handover between networks. The method according to one embodiment includes: if a network is changed or if a terminal is outside of the coverage area of a serving network while an area event is ongoing, requesting, by the terminal, new event trigger parameters to a home network through a first message; determining, by the home network, a serving network of the terminal by using location identifier included in the first message; receiving, the home network, the location identifier of a target area for which the positioning is requested from the determined serving network; and transmitting, the home network, the new event trigger parameters including the area identifier to the terminal through a second message.
55 Citations
21 Claims
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1. A mobile terminal for providing a location positioning service for a target area, comprising:
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a controller configured to request a SUPL position initiation request message to a server of a first network during an on going periodic or area event session with a second network, to receive a SUPL end message from the first network server including a parameter indicating that a reason for sending the SUPL end message is no coverage, and to transmit a SUPL triggered start message to the first network server, the SUPL triggered start message including a parameter indicating a cause for sending the SUPL triggered start message is no coverage, the controller configured to receive a SUPL triggered response message including at least one new trigger parameter associated with a third network from the first network server, and to continue to perform a periodic or area event session with the third network using the received at least one new trigger parameter. - View Dependent Claims (2, 3, 4)
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5. A SUPL server associated with a first network of a mobile terminal for providing a location positioning service, comprising:
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a controller configured to receive a SUPL position initiation request message from the mobile terminal during an on going periodic or area event session between a second network and the mobile terminal, to transmit a SUPL end message including a parameter indicating that a reason for sending the SUPL end message is no coverage, and to receive a SUPL triggered start message from the mobile terminal, the SUPL triggered start message including a parameter indicating that a cause for sending the SUPL triggered start message is no coverage, the controller configured to transmit a SUPL triggered response message including at least one new trigger parameter associated with a third network to the mobile terminal, wherein the at least one new trigger parameter is used to perform a periodic or area event session with the third network. - View Dependent Claims (6, 7, 8)
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9. A mobile terminal for providing a location positioning service for a target area, comprising:
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a controller configured to request a SUPL position initiation request message to a visited positioning center of a second network currently serving the mobile terminal during an on going periodic or area event session, and to receive a SUPL end message from the visited positioning center, the SUPL end message including a parameter indicating that a reason for sending the SUPL end message is no coverage, the controller configured to transmit a SUPL triggered start message to a server of a first network of the mobile terminal, to receive a SUPL triggered response message including at least one new trigger parameter associated with a third network, and to continue to perform a periodic or area event session with the third network using the received at least one new trigger parameter. - View Dependent Claims (10, 11, 12)
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13. A SUPL server associated with a first network of a mobile terminal for providing a location positioning service, comprising:
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a controller configured to receive a SUPL triggered start message from the mobile terminal when the mobile terminal is roaming in a second network, the SUPL triggered start message including a parameter indicating that a cause for sending the SUPL triggered start message is no coverage, the controller configured to determine a third network based on location identification information of the mobile terminal, to obtain the at least one new trigger parameter from a location center of the third network, and to transmit a SUPL triggered response message including the obtained at least one new trigger parameter to the mobile terminal, wherein the at least one new trigger parameter is used to perform a periodic or area event session with the third network. - View Dependent Claims (14)
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15. A method for providing an area event session with a mobile terminal capable of providing a SUPL service, comprising:
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performing, by the mobile terminal, an ongoing periodic or area event session with a second network currently serving the mobile terminal; transmitting, by the mobile terminal, a SUPL position initiation request message to a server of a first network during the ongoing periodic or area event session; receiving, by the mobile terminal, a SUPL end message from the first network server, the SUPL end message including a parameter indicating that a reason for sending the SUPL end message is no coverage; transmitting, by the mobile terminal, a SUPL triggered start message to the first network server, the SUPL triggered start message including a parameter indicating that a cause for sending the SUPL triggered start message is no coverage; receiving, by the mobile terminal, a SUPL triggered response message from the first network server, the SUPL triggered response message including at least one new trigger parameter associated with a third network; and performing a periodic or area event session with the third network using the received at least one new trigger parameter.
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16. A method for providing an area event session with a mobile terminal capable of providing a SUPL service, comprising:
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performing an ongoing periodic or area event session with a second network currently serving the mobile terminal; receiving, by a server of a first network, a SUPL position initiation request message from the mobile terminal during the on going periodic or area event session; transmitting, by the first network server, a SUPL end message to the mobile terminal, the SUPL end message including a parameter indicating that a reason for sending the SUPL end message is no coverage; receiving, by the first network server, a SUPL triggered start message from the mobile terminal, the SUPL triggered start message including a parameter indicating that a cause for sending the SUPL triggered start message is no coverage; in response to the SUPL triggered start message, determining, by the first network server, a third network to serve the mobile terminal based on location identification information associated with the mobile terminal; transmitting, by the first network server, a SUPL triggered response message to the mobile terminal, the SUPL triggered response message including at least one new trigger parameter associated with the third network; and performing a periodic or area event session with the third network using the at least one new trigger parameter. - View Dependent Claims (17, 18)
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19. A method for providing an area event session with a mobile terminal capable of providing a SUPL service, comprising:
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performing, by the mobile terminal, an ongoing periodic or area event session with a second network currently serving the mobile terminal; transmitting, by the mobile terminal, a SUPL position initiation request message to a positioning center of the second network during the on going periodic or area event session; receiving, by the mobile terminal, a SUPL end message from the positioning center of the second network, the SUPL end message including a parameter indicating that a reason for sending the SUPL end message is no coverage; transmitting, by the mobile terminal, a SUPL triggered start message to a server of a first network, the SUPL triggered start message including a parameter indicating that a cause for sending the SUPL triggered start message is no coverage; receiving, by the mobile terminal, a SUPL triggered response message from the first network server, the SUPL triggered response message including at least one new trigger parameter associated with a third network; and performing a periodic or area event session with the third network using the received at least one new trigger parameter.
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20. A method for providing an area event session with a mobile terminal capable of providing a SUPL service, comprising:
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performing an ongoing periodic or area event session with a second network currently serving the mobile terminal; receiving, by a server of a first network, a SUPL triggered start message from the mobile terminal, the SUPL triggered start message including a parameter indicating that a cause for sending the SUPL triggered start message is no coverage; in response to the SUPL triggered start message, determining, by the first network server, a third network to serve the mobile terminal based on location identification information associated with the mobile terminal; transmitting, by the first network server, a SUPL triggered response message to the mobile terminal, the SUPL triggered response message including at least one new trigger parameter associated with the third network; and performing a periodic or area event session with the third network using the at least one new trigger parameter. - View Dependent Claims (21)
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Specification