Patent ID: 7054268

Claim:
A method for transferring a data flow according to a multi-layer protocol including an application layer in which an application is executing, and a plurality of lower level layers, the method of transferring data flow by creating a physical connection on a packet radio service of a telecommunication system including a network and at least one mobile station, said physical connection for transferring data packets on a packet data channel, wherein the data flow of said data packets comprises at least one active data transfer period, characterized in that the physical connection must be set up and released by setup and release information that defines and signals the set up and release of the physical connection, wherein the set up and release of the physical connection is defined and signaled from the application executing in the application layer to a lower level layer of the multi-layer protocol so that the control events for setup and release of the physical connection are based upon requirements of the application that is executing in the application layer, and wherein the physical connection is not released during an inactive period in which there is no data to be transmitted between active data transfer periods, but is released when the set up of the physical connection is signaled from the application layer to the lower level layer.