Seven Networks, LLC

Seven Networks International Oy

Mikko Daavittila

Ari Backholm

Lauri Vuornos

Seppo Salorinne

Andrew J Everitt

Jukka Ahonen

Mikko Tervahauta

A method for IP [=Internet Protocol] communication between a mobile terminal and its correspondent node in a mobile radio network. The method comprises establishing an IP connection between the mobile terminal and its correspondent node. After detecting a period of inactivity in the IP connection, keep-alive messages are sent via the IP connection at predetermined intervals, which are varied. The method comprises monitoring the lengths of several periods of inactivity at which the mobile radio network disconnects the IP connection.

Dynamic adjustment of keep-alive messages for efficient battery usage in a mobile network

Systems and methods for maintaining an IP (Internet protocol) connection in a mobile network are disclosed. Techniques are disclosed wherein an optimal keep-alive interval is determined, and dynamic adjustments of keep-alive message interval are employed to prevent detection and counter measure. Keep-Alive schedule information may be determined at a first mobile terminal for a network, and subsequently used for a second mobile terminal when the second mobile terminal encounters that same network. In some embodiments, the Keep-Alive schedule information is stored at a network-node device. In some embodiments, the first mobile terminal and the second mobile terminal are cellular phones.

A method for IP [=Internet Protocol] communication between a mobile terminal and its correspondent node in a mobile radio network. The method comprises establishing an IP connection between the mobile terminal and its correspondent node. After detecting a period of inactivity in the IP connection, keep-alive messages are sent via the IP connection at predetermined intervals, which are varied. The method comprises monitoring 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 (T) between keep-alive messages is determined such that the maximum interval meets a predetermined criterion of statistical confidence, and the interval between keep-alive messages is set to the maximum interval (T).

A method for IP communication between a mobile terminal and its correspondent node in a mobile radio network. The method comprises establishing () an IP connection between the mobile terminal and its correspondent node. After detecting a period of inactivity in the IP connection, () keep-alive messages are sent via the IP connection at predetermined intervals, which are varied. The method comprises monitoring () 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 (T) between keep-alive messages is determined () such that the maximum interval meets a predetermined criterion of statistical confidence, and the interval between keep-alive messages is set () to the maximum interval (T).

Maintaining an IP connection in a mobile network

Systems and methods for dynamic adjustment of keep-alive message intervals in a mobile network are disclosed. One embodiment of maintaining an IP connection between a mobile terminal and a network node over a network includes, detecting a rate with which the client-slide request are made from the mobile terminal, detecting a rate with which the client-slide request are made from the mobile terminal, sending, by the network node, keep-alive messages to the mobile terminal in an absence of network traffic through the IP connection between the mobile terminal and the network node, and/or further optimizing the time intervals between the keep-alive messages based on a cost to send the keep-alive messages in the network.

Dynamic adjustment of keep-alive message intervals in a mobile network

A method for IP [=Internet Protocol] communication between a mobile terminal and its correspondent node in a mobile radio network. The method comprises establishing (-) an IP connection between the mobile terminal and its correspondent node. After detecting a period of inactivity in the IP connection, (-) keep-alive messages are sent via the IP connection at predetermined intervals, which are varied. The method comprises monitoring (-) 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 (T) between keep-alive messages is determined (-) such that the maximum interval meets a predetermined criterion of statistical confidence, and the interval between keep-alive messages is set (-) to the maximum interval (T).

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Espoo, Finland

Mikko Daavittila