The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 2010
Filed:
Jun. 21, 2006
Ari Backholm, Espoo, FI;
Seppo Salorinne, Helsinki, FI;
Jukka Ahonen, Espoo, FI;
Mikko Daavittila, Helsinki, FI;
Andrew Everitt, Milton, GB;
Lauri Vuornos, Helsinki, FI;
Ari Backholm, Espoo, FI;
Seppo Salorinne, Helsinki, FI;
Jukka Ahonen, Espoo, FI;
Mikko Daavittila, Helsinki, FI;
Andrew Everitt, Milton, GB;
Lauri Vuornos, Helsinki, FI;
SEVEN Networks International Oy, Helsinki, FI;
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 (-) 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).