Method for transmitting data in a telecommunications network and switch for implementing said method

• US 7,936,751 B2
• Filed: 01/26/2009
• Issued: 05/03/2011
• Est. Priority Date: 10/07/1996
• Status: Expired due to Fees

• Current Assignee: Sigram Schindler Beteiligungsgesellschaft Mbh (Sigram Schindler, PhD)
• Original Assignee: Sigram Schindler Beteiligungsgesellschaft Mbh (Sigram Schindler, PhD)
• Inventors: Ludtke, Karsten, Illg, Andreas, Schindler, Sigram, Paetsch, Frank
• Primary Examiner(s): Qureshi; Afsar M.
• Application Number:
  US12/359,514
• Publication Number:
  US 20090129381A1
• Time in Patent Office: 827 Days
• Field of Search: 370352-389, 370401-465, 370/252, 370/395.21, 379/88.17, 379/90.01, 379/93.01, 379/207.13
• US Class Current: 370/389
• CPC Class Codes: H04L 12/6418 Hybrid transport
• CPC Class Codes: H04L 2012/6427 Subscriber Access Module; Concentrator; Group equipment
• CPC Class Codes: H04L 2012/6443 Network Node Interface, e.g. Routing, Path finding
• CPC Class Codes: H04L 2012/6472 Internet
• CPC Class Codes: H04L 2012/6475 N-ISDN, Public Switched Telephone Network [PSTN]
• CPC Class Codes: H04L 69/18 Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04M 3/4228 in networks
• CPC Class Codes: H04M 7/0057 Services where the data services network provides a telephone service in addition or as an alternative, e.g. for backup purposes, to the telephone service provided by the telephone services network
• CPC Class Codes: H04M 7/006 Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42
• CPC Class Codes: H04Q 11/0428 Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
• CPC Class Codes: H04Q 2213/13031 Pulse code modulation, PCM
• CPC Class Codes: H04Q 2213/13174 Data transmission, file transfer
• CPC Class Codes: H04Q 2213/13175 Graphical user interface [GUI], WWW interface, visual indication
• CPC Class Codes: H04Q 2213/13196 Connection circuit/link/trunk/junction, bridge, router, gateway
• CPC Class Codes: H04Q 2213/13209 ISDN
• CPC Class Codes: H04Q 2213/13292 Time division multiplexing, TDM
• CPC Class Codes: H04Q 2213/13298 Local loop systems, access network
• CPC Class Codes: H04Q 2213/13389 LAN, internet
• CPC Class Codes: H04Q 3/002 Details

Abstract

A method for transferring data from a first switch to a second switch selectively by line-switching or by packet-switching as well as to a switch for carrying out the method. Data packets are thereby first transferred packet-switched through a packet-switching network to the second switch. With the presence of a corresponding control signal a line-switching connection is established from the first switch to the second switch and the data are then transferred through this connection. Where applicable a renewed changeover to a packet-switching transfer is carried out. A flexible packet-switching or line-switching data transfer linked with dynamic costs between the junctions of a telecommunications network is enabled.

Claims

1. Switching apparatus for selectively routing data of a data transfer to be transferred between a first end terminal and a second end terminal by switching the data originating from said first end terminal to either a packet switching network or a line switching network, the apparatus comprising:

a) a device for providing access to a packet switching network through which data originating from said first end terminal can be sent to a switch for delivery to said second end terminal;

b) a device for establishing a line-switched connection through a line switching network through which data originating from said first end terminal can be sent to said switch for delivery to said second end terminal; and

c) a control device for selectively routing said data originating from said first end terminal by packet switching through said packet switching network or by line switching through said line switching network, wherein

(i) said control device is operable to monitor the data transfer of the data originating from said first end terminal and sent by the device providing access to said packet switching network for delivery to said second end terminal;

(ii) said control device is operable to determine whether a real time communications possibility is maintained by the data transfer of the data originating from said first end terminal to be sent by the device providing access to said packet switching network for delivery to said second end terminal;

(iii) said control device is capable of causing said device for establishing a line-switched connection to establish a line-switched connection through the line switching network and to route the data transfer of the data originating from said first end terminal through the line-switched connection where said control device determines that a real time communications possibility may not be maintained by the data transfer of the data originating from said first end terminal to be sent by the device providing access to a packet switching network for delivery to said second end terminal; and

(iv) said control device is capable of maintaining a real time communications possibility for the data originating from said first end terminal for delivery to said second end terminal where said control device causes said device for establishing a line-switched connection to establish a line-switched connection through the line switching network and to route the data transfer of the data originating from said first end terminal through the line-switched connection.

2. Switching apparatus as set forth in claim 1, wherein data originating from said first end terminal is data of a telephone call.

3. Switching apparatus as set forth in claim 2, wherein said data of a telephone call is voice data.

4. A mobile communication device, comprising switching apparatus as set forth in claim 1.

5. Apparatus for routing data of a voice telephone call, comprising:

a) an input device for receiving data of a voice telephone call from a first end terminal;

b) an IP switch for forwarding said data to a packet switching network for packet-oriented communication to a second end terminal,

c) a line switch for forwarding said data to a line switching network for line-oriented communication to said second end terminal; and

d) a control device for selectively routing said data of a voice telephone call to said IP switch or said line switch;

said control device being operable to

(i) monitor the bandwidth of an existing transfer of data comprising said voice telephone call;

(ii) change over the routing of said existing transfer from said IP switch to said line switch during said existing transfer when said bandwidth understeps or exceeds a certain bandwidth; and

(iii) change over the routing of said existing transfer from said IP switch to said line switch without interrupting said voice telephone call.

6. Apparatus as set forth in claim 5, wherein said data of a voice telephone call comprises voice data.

7. A mobile communication device, comprising switching apparatus as set forth in claim 5.