NETWORK-INITIATED AREA EVENT TRIGGERED POSITIONING METHOD FOR ROAMING TERMINAL IN MOBILE COMMUNICATION SYSTEM
First Claim
1. A network-initiated area event triggered positioning method in a mobile communication system having a home network and a visited network that support roaming of a SET (SUPL Enabled Terminal), the method comprising:
- receiving, by a first server from a SUPL Agent, a MLP message including a MS-id, a client-is, a quality of positioning (QoP) and a TLRR event parameter;
verifying, by the first server, whether the SET is roaming;
sending, by the first server to the SET, a SUPL INIT message including a session-id, a trigger type indicator, a positioning method, and a SLP mode;
receiving, by the first server, a SUPL TRIGGERED START message from the SET to start an area event trigger session, the SUPL TRIGGERED START message including a session-id, a location identifier (lid), SET capabilities;
sending, by the first server to a second server, a RLP TSRLRR message that includes the SUPL TRIGGERED START message, the RLP SSRLIR message including area ids corresponding to the areas for the area event triggered session;
receiving, by the first server, a RLP TSRLRA message that includes a SUPL TRIGGERED RESPONSE message;
sending, by the first server, the SUPL TRIGGERED RESPONSE message to the SET, the SUPL TRIGGERED RESPONSE message including a session-id, a positioning method, an address of the third server, trigger parameters, and the area ids corresponding to the areas for the area event triggered session;
receiving, by a third server, a SUPL POS INIT message from the SET to start a positioning session with the third server when a current cell-id and one of the area ids correspond to each other, the SUPL POS INIT message including session-id, lid, and SET capabilities, and wherein the first server receives the area ids of the specific area from the second server through a third server;
performing the positioning session with the SET by exchanging positioning messages with the SET to obtain a positioning result;
sending, by the third server, a SUPL REPORT message to the SET, the SUPL REPORT message including a session-id and the positioning result;
receiving, by the first server from the SET, a SUPL REPORT message including the session-id and the positioning result; and
sending, by the first server to the SUPL Agent, the positioning result using an MLP message.
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Abstract
A network-initiated area event triggered positioning method for a terminal in a session-based position information system is discussed. Network-initiation of area-based positioning of a roaming terminal is discriminated according to a proxy mode and a non-proxy mode, and area-based positioning for the roaming terminal is performed in various manners according to whether an SLP for performing the positioning procedure with respect to the discriminated modes is a V-SLP or an H-SLP.
24 Citations
17 Claims
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1. A network-initiated area event triggered positioning method in a mobile communication system having a home network and a visited network that support roaming of a SET (SUPL Enabled Terminal), the method comprising:
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receiving, by a first server from a SUPL Agent, a MLP message including a MS-id, a client-is, a quality of positioning (QoP) and a TLRR event parameter; verifying, by the first server, whether the SET is roaming; sending, by the first server to the SET, a SUPL INIT message including a session-id, a trigger type indicator, a positioning method, and a SLP mode; receiving, by the first server, a SUPL TRIGGERED START message from the SET to start an area event trigger session, the SUPL TRIGGERED START message including a session-id, a location identifier (lid), SET capabilities; sending, by the first server to a second server, a RLP TSRLRR message that includes the SUPL TRIGGERED START message, the RLP SSRLIR message including area ids corresponding to the areas for the area event triggered session; receiving, by the first server, a RLP TSRLRA message that includes a SUPL TRIGGERED RESPONSE message; sending, by the first server, the SUPL TRIGGERED RESPONSE message to the SET, the SUPL TRIGGERED RESPONSE message including a session-id, a positioning method, an address of the third server, trigger parameters, and the area ids corresponding to the areas for the area event triggered session; receiving, by a third server, a SUPL POS INIT message from the SET to start a positioning session with the third server when a current cell-id and one of the area ids correspond to each other, the SUPL POS INIT message including session-id, lid, and SET capabilities, and wherein the first server receives the area ids of the specific area from the second server through a third server; performing the positioning session with the SET by exchanging positioning messages with the SET to obtain a positioning result; sending, by the third server, a SUPL REPORT message to the SET, the SUPL REPORT message including a session-id and the positioning result; receiving, by the first server from the SET, a SUPL REPORT message including the session-id and the positioning result; and sending, by the first server to the SUPL Agent, the positioning result using an MLP message. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A network-initiated area event triggered positioning method in a mobile communication system having a home network and a visited network that support roaming of a SET (SUPL Enabled Terminal), the method comprising:
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receiving, from a first server, a SUPL INIT message including a session-id, a trigger type indicator, a positioning method, and a SLP mode; sending, to the first server, a SUPL TRIGGERED START message to start an area event trigger session, the SUPL TRIGGERED START message including a session-id, a location identifier (lid), SET capabilities; receiving, from the first server, the SUPL TRIGGERED RESPONSE message including a session-id, a positioning method, a V-SPC address, trigger parameters, and the area ids corresponding to the areas for the area event triggered session; sending, to a second server, a SUPL POS INIT message to start a positioning session with the second server when a current cell-id and one of the area ids correspond to each other, the SUPL POS INIT message including session-id, lid, and SET capabilities; performing the positioning session with the second server by exchanging positioning messages with the second server to obtain a positioning result; receiving, from the second server, a SUPL REPORT message including a session-id and the positioning result; comparing the positioning result with the specific area in the trigger parameter to check if a event trigger condition has been met; sending, to the first server, a SUPL REPORT message if the event trigger condition has been met, the SUPL REPORT message including a session-id and the positioning result; and receiving, from the first server, a SUPL END message. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification