System for voice and data communication via a common subscriber line

• US 7,406,099 B2
• Filed: 09/03/2003
• Issued: 07/29/2008
• Est. Priority Date: 09/03/2002
• Status: Expired due to Fees

• Current Assignee: Enterprise Systems Technologies S.a.r.l. (Atos SE)
• Original Assignee: Siemens AG
• Inventors: Schlagintweit, Martin
• Primary Examiner(s): Pham, Chi H.
• Assistant Examiner(s): Mew, Kevin
• Application Number:
  US10/653,467
• Publication Number:
  US 20040101115A1
• Time in Patent Office: 1,791 Days
• Field of Search: 370/465, 370/466, 370/468, 370/469, 370/480, 370485-488, 370493-495, 370/497, 37939901-41304
• US Class Current: 370/493
• CPC Class Codes: H04Q 11/0435 Details
• CPC Class Codes: H04Q 2213/13034 A/D conversion, code compression/expansion
• CPC Class Codes: H04Q 2213/13039 Asymmetrical two-way transmission, e.g. ADSL, HDSL
• CPC Class Codes: H04Q 2213/13076 Distributing frame, MDF, cross-connect switch
• CPC Class Codes: H04Q 2213/13202 Network termination [NT]
• CPC Class Codes: H04Q 2213/13209 ISDN
• CPC Class Codes: H04Q 2213/13216 Code signals, frame structure
• CPC Class Codes: H04Q 2213/13298 Local loop systems, access network
• CPC Class Codes: H04Q 2213/13299 Bus
• CPC Class Codes: H04Q 2213/13384 Inter-PBX traffic, PBX networks, e.g. corporate networks
• CPC Class Codes: H04Q 2213/13389 LAN, internet

Abstract

A data coding device for coding data, to be transmitted as part of data communication, to signals of a first frequency range, not used for voice communication with a first set of performance features, and a conversion device are provided. The conversion device has an interface for connecting a voice terminal having a second set of performace features and for transmission of data coded to signals of a second frequency range that are to be transmitted with the second set of performance features as part of voice communication. The conversion device also has a coding means for recording signals of the second frequency range to signals of a third frequency range that is located outside the first frequency range. Furthermore, a frequency-separating filter for feeding signals of the first and third frequency range into the subscriber line is provided.

Claims

1. A system for voice and data communication via a common subscriber line, comprising:

a data coding device for coding data relating to the data communication into signals of a first frequency range which is left unused by a voice communication with a first set of performance features;

a conversion device comprising;

an interface for connecting to a voice terminal providing a second set of performance features and for transmitting information relating to a voice communication with said second set of performance features, the information being coded into signals of a second frequency range; and

a recoder to recode the signals of the second frequency range to signals of a third frequency range that is outside the first frequency range; and

a frequency separating filter to feed signals of the first and third frequency ranges into the subscriber line wherein

the signals of the first and third frequency ranges are transmitted together with the voice communication with the first set of performance features, on a single transmission line, and

the signals of the second frequency range are recoded to the signals of the third frequency range while retaining the data transmission rate.

2. The system in accordance with claim 1, wherein

the data coding device codes data to produce xDSL signals, and

the frequency-separating filter feeds the xDSL signals into the subscriber line.

3. The system in accordance with claim 1, wherein the second frequency range is a signal frequency range of a U_p0/E interface or a U_p0 interface.

4. The system in accordance with claim 1, wherein the third frequency range is a signal frequency range of a U2B1Q interface or a U_k0 interface.

5. The system in accordance with claim 1, wherein the conversion device recodes the signals with 2B1Q coding or 4B3T coding.

6. The system in accordance with claim 1, wherein the device has a U_p0/E or a U_p0 interface to connect the voice terminal and a UU2B1Q or a U_k0 interface for connecting the frequency-separating filter.

7. The system in accordance with claim 1, wherein the subscriber line is a twin-wire cable.

8. The system in accordance with claim 1, wherein the second frequency range overlaps the first and third frequency ranges.

9. The system in accordance with claim 2, wherein the second frequency range is a signal frequency range of a U_p0/E interface or a U_p0 interface.

10. The system in accordance with claim 9, wherein the third frequency range is a signal frequency range of a U2B1Q interface or a U_k0 interface.

11. The system in accordance with claim 10, wherein the conversion device recodes the signals with 2B1Q coding or 4B3T coding.

12. The system in accordance with claim 11, wherein the conversion device has a U_p0/E or a U_p0 interface to connect the voice terminal and a UU2B1Q or a U_k0 interface for connecting the frequency-separating filter.

13. The system in accordance with claim 12, wherein the subscriber line is a twin-wire cable.

14. A method for voice communication and data communication via a common subscriber line, comprising:

coding data relating to the data communication into signals of a first frequency range which is left unused by a voice communication with a first set of performance features;

receiving information relating to a voice communication with a second set of performance features from a voice terminal providing said second set of performance features, the information being coded into signals of a second frequency range;

recoding the signals of the second frequency range to signals of a third frequency range being outside of the first frequency range; and

feeding the signals of the first and third frequency ranges into the subscriber line; and

transmittal the signals of the first and third frequency ranges together with the voice communication with the first set of performance features, on a single transmission line;

wherein the signals of the second frequency range are recorded to the signals of the third frequency range while retaining the data transmission rate.