Patents by Inventor Pertti Kasanen

Pertti Kasanen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Mobile network optimized method for keeping an application IP connection always on
    Patent number: 8849961
    Abstract: A system and method of maintaining an always-on application client communication is provided. An application programming interface implemented on a device hosting an always-on application client determines if network-based keep-alive functionality exists in a network where the device operates. If network-based keep-alive functionality exists, a network element is instructed to transmit keep-alive messages to the application server on behalf of the device. The network element can be implemented in or as a variety of existing network elements, e.g., as a GPRS gateway serving node or a standalone keep-alive network element. Alternatively, an application server communicatively connected to the always-on application client may query whether network-based keep-alive functionality exists. If network-based keep-alive functionality exists, the application server negotiates with the always-on application client to determine an application-specific mechanism for implementing the network-based keep-alive functionality.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: September 30, 2014
    Assignee: Nokia Corporation
    Inventors: Rauno Hartikainen, Pertti Kasanen, Mika Joutsenvirta
  • Mobile network optimized method for keeping an application IP connection always on
    Publication number: 20080059582
    Abstract: A system and method of maintaining an always-on application client communication is provided. An application programming interface implemented on a device hosting an always-on application client determines if network-based keep-alive functionality exists in a network where the device operates. If network-based keep-alive functionality exists, a network element is instructed to transmit keep-alive messages to the application server on behalf of the device. The network element can be implemented in or as a variety of existing network elements, e.g., as a GPRS gateway serving node or a standalone keep-alive network element. Alternatively, an application server communicatively connected to the always-on application client may query whether network-based keep-alive functionality exists. If network-based keep-alive functionality exists, the application server negotiates with the always-on application client to determine an application-specific mechanism for implementing the network-based keep-alive functionality.
    Type: Application
    Filed: September 6, 2006
    Publication date: March 6, 2008
    Inventors: Rauno Hartikainen, Pertti Kasanen, Mika Joutsenvirta