METHOD FOR REQUESTING TRIGGERED LOCATION SERVICE BETWEEN TERMINALS IN LOCATION INFORMATION SYSTEM

摘要

Disclosed is a method for requesting a triggered location service between terminals in an SUPL-based location information system, and more particularly, a method for requesting a triggered location service related to an area event. When a triggered service of a second terminal is requested in a certain area from a first terminal, a network of the first terminal transfers the triggered service request to a second network of the second terminal. The second network initiates a positioning session with the second terminal, exchanges positioning messages and calculates a location of the second terminal, then compares the calculated location with a certain area set by the first terminal, and notifies area event occurrence in the certain area to the first terminal.