Maintaining an IP connection in a mobile network
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United States of America Patent
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Jun 24, 2014
Grant Date -
Jan 3, 2013
app pub date -
Sep 13, 2012
filing date -
Jun 21, 2005
priority date (Note) -
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Abstract
A method for IP communication between a mobile terminal and its correspondent node in a mobile radio network. The method comprises establishing (202) an IP connection between the mobile terminal and its correspondent node. After detecting a period of inactivity in the IP connection, (204) keep-alive messages are sent via the IP connection at predetermined intervals, which are varied. The method comprises monitoring (206) the lengths of several periods of inactivity at which the mobile radio network disconnects the IP connection. Based on the monitored lengths of periods of inactivity, a maximum interval (TINT) between keep-alive messages is determined (208) such that the maximum interval meets a predetermined criterion of statistical confidence, and the interval between keep-alive messages is set (210) to the maximum interval (TINT).
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