Method for maintaining a data transmission connection
First Claim
1. A method for maintaining a data transmission connection between a terminal and an application server connected to a telecommunication network, said method comprising:
- establishing an application level data transmission connection between said terminal and said application server by using a packet data telecommunications service of the telecommunication network as a bearer service;
establishing a circuit-switched telecommunications connection between said terminal and said telecommunication network;
interrupting the packet data telecommunications service for the time of the circuit-switched telecommunications connection;
setting up a message for maintaining the data transmission connection between said terminal and said application server in connection with establishing the circuit-switched telecommunications connection;
wherein said message comprises a command to reset an application level time-out counter in the application server; and
transmitting said message to the application server before starting to establish the circuit-switched telecommunications connection.
2 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to a method for maintaining a first data transmission connection from a terminal (MS) to a telecommunication network (NW1). In the method, at least a second data transmission connection is also set up between said terminal (MS) and telecommunication network (NW1). In the method, the first data transmission connection is interrupted for the time of the second data transmission connection. Furthermore, in the method, a message for maintaining the first data transmission connection is set up in the terminal (MS) in connection with setting up of the second data transmission connection. The generation of said message for maintaining the first data transmission connection is started in the terminal (MS).
41 Citations
19 Claims
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1. A method for maintaining a data transmission connection between a terminal and an application server connected to a telecommunication network, said method comprising:
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establishing an application level data transmission connection between said terminal and said application server by using a packet data telecommunications service of the telecommunication network as a bearer service; establishing a circuit-switched telecommunications connection between said terminal and said telecommunication network; interrupting the packet data telecommunications service for the time of the circuit-switched telecommunications connection; setting up a message for maintaining the data transmission connection between said terminal and said application server in connection with establishing the circuit-switched telecommunications connection; wherein said message comprises a command to reset an application level time-out counter in the application server; and transmitting said message to the application server before starting to establish the circuit-switched telecommunications connection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A terminal which comprises:
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a circuit configured to establish an application level data transmission connection to an application server connected to a telecommunication network by using a packet data telecommunications service of the telecommunication network as a bearer service; a circuit configured to establish a circuit-switched telecommunications connection between the telecommunication network and said terminal; a circuit configured to interrupt the packet data telecommunications service for the time of the circuit-switched telecommunications connection, a circuit configured to automatically start the setting up of a message for maintaining the data transmission connection between the terminal and the application server in connection with establishing the circuit-switched telecommunications connection, wherein said message comprises a command to reset an application level time-out counter in the application server; and a transmitter configured to transmit said message to the application server before starting to establish the circuit-switched telecommunications connection. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A communication system which comprises:
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at least one telecommunication network, at least one application server coupled to the telecommunication network and at least one terminal; a circuit configured to set up an application level data transmission connection between the application server and said terminal by using a packet data telecommunications service of the telecommunication network as a bearer service, a circuit configured to set up a circuit-switched telecommunications connection between the telecommunication network and the terminal, a circuit configured to interrupt the packet data telecommunications service for the time of the circuit-switched telecommunications connection, a circuit configured to set up a message for maintaining the data transmission connection between the application server and said terminal; a circuit configured to automatically start the setting up of the message maintaining the data transmission connection in connection with setting up of the circuit-switched telecommunications connection, wherein said message comprises a command to reset an application level time-out counter in the application server; and a circuit configured to transmit said message to the application server before starting to set up the circuit-switched telecommunications connection. - View Dependent Claims (16, 17, 18)
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19. A computer-readable medium having stored thereon a computer program product, executable in a data processing device, for maintaining an application level data transmission connection between a terminal and an application server connected to a telecommunication network, the computer program product comprising:
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a computer program code section for establishing a data telecommunications connection to an application server connected to a telecommunication network by using a packet data telecommunications service of the telecommunication network as a bearer service; a computer program code section for establishing a circuit-switched telecommunications connection between the telecommunication network and said terminal; a computer program code section for interrupting the packet data telecommunications service for the time of the circuit-switched telecommunications connection; a computer program code section for automatically starting the setting up of a message for maintaining the data transmission connection between the terminal and the application server in connection with establishing the circuit-switched telecommunications connection; wherein said message comprises a command to reset an application level time-out counter in the application server; and a computer program code section for controlling the terminal to transmit said message to the application server before starting to establish the circuit-switched telecommunications connection.
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Specification