Maintaining an IP connection in a mobile network
First Claim
1. A method for Internet Protocol communication between a mobile terminal and a node in a mobile radio network, the method comprising:
- establishing an Internet Protocol connection between the mobile terminal and node;
sending keep-alive messages via the Internet Protocol connection at predetermined and variable intervals, the keep-alive messages sent in response to detecting a period of inactivity in the Internet Protocol connection, the keep-alive messages sent from the mobile terminal;
monitoring the lengths of several periods of inactivity at which the mobile radio network disconnects the Internet Protocol connection;
determining a maximum interval between keep-alive messages based on the several monitored lengths of periods of inactivity such that the maximum interval meets a predetermined criterion of statistical confidence; and
setting the interval between keep-alive messages to the maximum determined interval.
6 Assignments
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Accused Products
Abstract
A method for IP [=Internet Protocol] communication between a mobile terminal and its correspondent node in a mobile radio network. The method comprises establishing (2-2) an IP connection between the mobile terminal and its correspondent node. After detecting a period of inactivity in the IP connection, (2-4) keep-alive messages are sent via the IP connection at predetermined intervals, which are varied. The method comprises monitoring (2-6) 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 (2-8) such that the maximum interval meets a predetermined criterion of statistical confidence, and the interval between keep-alive messages is set (2-10) to the maximum interval (TINT).
90 Citations
10 Claims
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1. A method for Internet Protocol communication between a mobile terminal and a node in a mobile radio network, the method comprising:
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establishing an Internet Protocol connection between the mobile terminal and node; sending keep-alive messages via the Internet Protocol connection at predetermined and variable intervals, the keep-alive messages sent in response to detecting a period of inactivity in the Internet Protocol connection, the keep-alive messages sent from the mobile terminal; monitoring the lengths of several periods of inactivity at which the mobile radio network disconnects the Internet Protocol connection; determining a maximum interval between keep-alive messages based on the several monitored lengths of periods of inactivity such that the maximum interval meets a predetermined criterion of statistical confidence; and setting the interval between keep-alive messages to the maximum determined interval. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification