Method for the packet-oriented transmission of data, network intermediate nodes and telecommunications network

• US 20050018689A1
• Filed: 05/26/2004
• Published: 01/27/2005
• Est. Priority Date: 05/27/2003
• Status: Active Grant

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Chudoba, Christian
• Granted Patent: US 7,646,787 B2
• Time in Patent Office: Days
• US Class Current: 370/395.500
• CPC Class Codes: H04L 69/08 Protocols for interworking; Protocol conversion
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/169 Special adaptations of TCP, UDP or IP for interworking of IP based networks with other networks protocols for interworking, protocol conversion H04L69/08
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

The invention relates to a method for the packet-oriented transmission of data in telecommunications networks between a communications terminal and a data computer in which the data is transmitted via an intermediately connected protocol-converting intermediate node which converts messages in a connectionless transmission protocol into messages in a connection-oriented transmission protocol, and vice versa. In the method, a program module is transferred to the communications terminal which permits the communications terminal to transmit and receive messages by the connectionless transmission protocol. Furthermore, the invention relates to a network node and a telecommunications network.

Claims

1. A method for packet-oriented transmission of data in telecommunications networks between a communications terminal and a data computer, comprising:

transmitting the data via an intermediately connected protocol-converting intermediate node which converts messages in a connectionless transmission protocol into messages in a connection-oriented transmission protocol, and vice versa;

when the method is initiated, emitting a start data request message by the communications terminal by the connection-oriented transmission protocol;

receiving the start data request message by the intermediate node;

detecting, via the intermediate node, that the start data request message has been transmitted by the connection-oriented transmission protocol;

transferring a program module by the intermediate node by the connection-oriented transmission protocol to the communications terminal, which module permits the communications terminal to transmit and receive messages by the connectionless transmission protocol; and

in response, transmitting, via the communications terminal, a first data request message to the data computer by the connectionless transmission protocol.

2. The method as claimed in claim 1, wherein

the first data request message is received by the intermediate node, which is arranged in a message flow-related fashion between the communications terminal and the data computer, of the telecommunications network,

the data request message is transmitted by the intermediate node to the data computer by the connection-oriented transmission protocol,

a data message which is created by the data computer in response to the data request message and is transmitted to the communications terminal by the connection-oriented transmission protocol is received by the intermediate node, and

the data message is transmitted to the communications terminal by the intermediate node by the connectionless transmission protocol.

3. The method as claimed in claim 1, wherein

the program module is transferred to the communications terminal if the intermediate node detects that the communications terminal is a mobile telephone terminal.

4. The method as claimed in claim 1, wherein

the program module is transferred to the communications terminal if the intermediate node detects that the program module has not yet been installed on the communications terminal.

5. The method as claimed in claim 1, wherein

a connection-oriented transmission protocol of the transport layer of the ISO/OSI communications model is used as the connection-orientated transmission protocol.

6. The method as claimed in claim 1, wherein

the transmission control protocol is used as the connection-oriented transmission protocol.

7. The method as claimed in claim 1, wherein

a connectionless transmission protocol of the network layer of the ISO/OSI communications model is used as a connectionless transmission protocol.

8. The method as claimed in claim 1, wherein

the user datagram protocol is used as the connectionless transmission protocol.

9. The method as claimed in claim 1, wherein

a communications terminal which can be operated in a wire-free fashion is used as the communications terminal, and a mobile telephone network is used as the telecommunications network.

10. An intermediate node for a telecommunications network for packet-oriented transmission of data between a data computer and a communications terminal, which is designed to receive messages which are transmitted by the communications terminal by a connectionless transmission protocol, to pass the messages on to the data computer by a connection-oriented transmission protocol, to receive messages which have been transmitted by the data computer by the connection-oriented transmission protocol, and to pass the messages on to the communications terminal by the connectionless transmission protocol, and which has a detection device to detect whether a program module which permits the communications terminal to transmit and receive messages by the connectionless transmission protocol is installed on the communications terminal.

11. The intermediate node as claimed in claim 10, wherein the detection device detects whether an incoming message is transmitted by the connectionless transmission protocol or by the connection-oriented transmission protocol.

12. The intermediate node as claimed in claim 10, further comprising a transmitter device to transmit an incoming message by the connectionless transmission protocol.

13. The intermediate node as claimed in claim 10, further comprising a transmitter device to transmit an incoming message by the connection-oriented transmission protocol.

14. The intermediate node as claimed in claim 10, further comprising a transmission device with which a program module which permits messages to be transmitted and received by the connectionless transmission protocol can be transmitted to the communications terminal.

15. A telecommunications network, comprising an intermediate node for a telecommunications network for packet-oriented transmission of data between a data computer and a communications terminal, which is designed to receive messages which are transmitted by the communications terminal by a connectionless transmission protocol, to pass the messages on to the data computer by a connection-oriented transmission protocol, to receive messages which have been transmitted by the data computer by the connection-oriented transmission protocol, and to pass the messages on to the communications terminal by the connectionless transmission protocol, and which has a detection device to detect whether a program module which permits the communications terminal to transmit and receive messages by the connectionless transmission protocol is installed on the communications terminal.

16. The telecommunications network as claimed in claim 15, wherein

the intermediate node is arranged in a message-related fashion between the communications terminal and the data computer which is connected to the telecommunications network.