Patent ID: 7937092
Filing Date: 2011-05-03
Classification: H04L,H04W

Abstract:
1. A method of providing location information of a target terminal in a network system including a Home GMLC (Gateway Mobile Location Center) and a Visited GMLC (Gateway Mobile Location Center), the method comprising: receiving, by the Home GMLC, a first LCS (LoCation Services) service request message for the location information of the target terminal from a LCS client; performing, by the Home GMLC, a first privacy check for a positioning of the target terminal; sending, by the Home GMLC, a second LCS service request message to the Visited GMLC; receiving, by the Home GMLC, a first LCS service response message including a current location information of the target terminal; performing, by the Home GMLC, a second privacy check in order to decide whether the Home GMLC can forward the current location information of the target terminal to the LCS client or send a third LCS service request message if the result of the second privacy check requires a notification and a verification depending on the current location information of the target terminal, wherein the second privacy check is performed after receiving the first LCS service response message including the current location information of the target terminal; after performing the second privacy check, sending, by the Home GMLC, the third LCS service request message if the result of the second privacy check is to request the notification and verification depending on the current location information of the target terminal; after performing the second privacy check, receiving, by the Home GMLC, a second LCS service response message in response to the third LCS service request message, wherein the second LCS service response message is received with an indication of the result of the notification and verification depending on the current location information of the target terminal by the target terminal; and sending, by the Home GMLC, a third LCS service response message including the current location information of the target terminal if the indication of the result indicates that a report of the current location information of the target terminal is allowed.