ATM based VDSL communication system having meta signaling for switching a subscriber between different data service providers

• US 6,160,810 A
• Filed: 06/24/1999
• Issued: 12/12/2000
• Est. Priority Date: 06/24/1999
• Status: Expired due to Term

• Current Assignee: Qwest Communications International Incorporated (Lumen Technologies, Inc.)
• Original Assignee: Qwest Communications International Incorporated (Lumen Technologies, Inc.)
• Inventors: Brodigan, Donald L.
• Primary Examiner(s): Pham, Chi H.
• Assistant Examiner(s): Pham, Brenda H.
• Application Number:
  US09/339,148
• Time in Patent Office: 537 Days
• Field of Search: 370/395, 370/397, 370/399, 370/352
• US Class Current: 370/395.52
• CPC Class Codes: H04L 12/2883 ATM DSLAM
• CPC Class Codes: H04L 12/289 Single service
• CPC Class Codes: H04L 12/5601 Transfer mode dependent, e.g. ATM
• CPC Class Codes: H04L 2012/5605 Fibre
• CPC Class Codes: H04L 2012/5606 Metallic
• CPC Class Codes: H04L 49/351 for local area network [LAN], e.g. Ethernet switches
• CPC Class Codes: H04Q 11/0478 Provisions for broadband connections

Abstract

An asynchronous transfer mode (ATM) based very-high-bit-rate digital subscriber line (VDSL) system for connecting a subscriber between different data service providers includes an ATM network connected to data service providers. A host digital terminal (HDT) is connected to the ATM network by an ATM permanent virtual circuit (PVC). Each of the ATM PVCs is associated with a corresponding one of the data service providers. The ATM PVCs connect the HDT to the data service providers. The HDT and the data service providers communicate data signals on the ATM PVCs through the ATM network. A customer provided equipment (CPE) data device is connected to the HDT by a VDSL PVC. The CPE device and the HDT communicate data signals on the VDSL PVC. A subscriber personal computer is connected to the CPE device for communicating data signals with the CPE device. The personal computer is operable to generate a channel signal corresponding to a selected one of the data service providers. The HDT, in response to the channel signal, connects the ATM PVC associated with the selected data service provider with the DSL PVC to establish a system PVC connecting the selected data service provider with the personal computer. The selected data service provider and the personal computer communicate the data signals on the system PVC.

Claims

1. An asynchronous transfer mode (ATM) based very-high-bit-rate digital subscriber line (VDSL) communication system for connecting a subscriber between different data service providers, the ATM based VDSL communication system comprising:

an ATM network connected to a plurality of data service providers;

a host digital terminal connected to the ATM network by one of a plurality of ATM permanent virtual circuits, each of the ATM permanent virtual circuits associated with a corresponding one of the plurality of data service providers and being supported on a fiber optics link, wherein the plurality of ATM permanent virtual circuits connect the host digital terminal to the plurality of data service providers, the host digital terminal and the plurality of data service providers communicating data signals on the plurality of ATM permanent virtual circuits through the ATM network;

an optical network unit connected to the host digital terminal by a fiber optics link;

a customer provided equipment (CPE) data device connected through the optical network unit to the host digital terminal by a well known VDSL permanent virtual circuit, the well known VDSL permanent virtual circuit being supported on a fiber optics link between the host digital terminal and the optical network unit and a twisted pair drop between the optical network unit and the CPE data device, the CPE data device and the host digital terminal communicating data signals on the well known VDSL permanent virtual circuit; and

a subscriber personal computer connected to the CPE data device for communicating data signals with the CPE data device, wherein the subscriber personal computer is operable to generate a channel change signal corresponding to a selected one of the plurality of data service providers;

wherein the host digital terminal, in response to the channel change signal, connects the ATM permanent virtual circuit associated with the selected one of the data service providers with the well known VDSL permanent virtual circuit to establish a system PVC connecting the selected one of the data service providers with the subscriber personal computer, wherein the selected one of the data service providers and the subscriber personal computer communicate the data signals on the system PVC.

2. The ATM based VDSL communication system of claim 1 wherein:

the host digital terminal, upon receiving another channel change signal corresponding to a second data service provider, disconnects the well known VDSL PVC from the ATM permanent virtual circuit associated with the current one of the plurality of data service providers and connects the well known VDSL PVC with the ATM permanent virtual circuit associated with the second data service provider to establish a second system PVC.

3. The ATM based VDSL communication system of claim 1 wherein:

the host digital terminal includes a database of the data service providers in which the subscriber personal computer has access, wherein the host digital terminal, in response to the channel change signal, processes the database to determine if the subscriber personal computer has access to the selected one of the plurality of data service providers and, if the subscriber personal computer has access, connects the ATM permanent virtual circuit associated with the selected one of the data service providers with the well known VDSL permanent virtual circuit to establish a new system PVC.

4. The ATM based VDSL communication system of claim 1 wherein:

the CPE data device, in response to the channel change signal from the subscriber personal computer, transmits a digital storage media-command and control (DSM-CC) signal on the well known VDSL PVC to the host digital terminal, the DSM-CC signal containing a designation indicative of the selected one of the plurality of data service providers.

5. The ATM based VDSL communication system of claim 4 wherein:

the CPE data device transmits the DSM-CC signal to the host digital terminal over a meta signaling channel on the well known VDSL PVC.

6. The ATM based VDSL communication system of claim 1 wherein:

the CPE data device has an Internet Protocol (IP) address, wherein the channel change signal includes the IP address of the CPE data device, wherein the CPE data device intercepts the channel change signal based on identifying its IP address and then transmits a digital storage media-command and control (DSM-CC) signal on well known VDSL PVC to the host digital terminal, the DSM-CC signal containing a designation indicative of the selected one of the plurality of data service providers.

7. The ATM based VDSL communication system of claim 1 wherein:

each of the ATM permanent virtual circuits have associated ATM parameters.

8. The ATM based VDSL communication system of claim 1 wherein:

the subscriber personal computer and the CPE data device are connected by a 10baseT port.

9. The ATM based VDSL communication system of claim 1 further comprising:

a subscriber computer device; and

a 10baseT hub connecting the subscriber personal computer and the subscriber computer device via respective 10baseT device ports, the 10baseT hub being connected to the CPE data device via a 10baseT hub port.

10. The ATM based VDSL communication system of claim 1 further comprising:

a subscriber computer device, wherein the subscriber personal computer and the subscriber computer device are connected to the CPE data device by 10baseT ports, wherein each of the 10baseT ports has an associated well known VDSL PVC connected to the host digital terminal.

11. An asynchronous transfer mode (ATM) based very-high-bit-rate digital subscriber line (VDSL) communication system for connecting a subscriber between different data service providers, the ATM based VDSL communication system comprising:

an ATM network having first and second ATM edge switches, the first ATM edge switch connected to a plurality of data service providers;

a host digital terminal connected to the second ATM edge switch of the ATM network by one of a plurality of ATM permanent virtual circuits, each of the ATM permanent virtual circuits associated with a corresponding one of the plurality of data service providers and being supported on a fiber optics link, wherein the plurality of ATM permanent virtual circuits connect the host digital terminal to the plurality of data service providers, the host digital terminal and the plurality of data service providers communicating data signals on the plurality of ATM permanent virtual circuits through the ATM network;

an optical network unit connected to the host digital terminal by a fiber optics link;

a customer provided equipment (CPE) data device connected through the optical network unit to the host digital terminal by a well known VDSL permanent virtual circuit, the well known VDSL permanent virtual circuit being supported on a fiber optics link between the host digital terminal and the optical network unit and a twisted pair drop between the optical network unit and the CPE data device, the CPE data device and the host digital terminal communicating data signals on the well known VDSL permanent virtual circuit; and

a subscriber personal computer connected to the CPE data device for communicating data signals with the CPE data device, wherein the subscriber personal computer is operable to generate a channel change signal corresponding to a selected one of the plurality of data service providers;

wherein the host digital terminal, in response to the channel change signal, connects the ATM permanent virtual circuit associated with the selected one of the data service providers with the well known VDSL permanent virtual circuit to establish a system PVC connecting the selected one of the data service providers with the subscriber personal computer, wherein the selected one of the data service providers and the subscriber personal computer communicate the data signals on the system PVC.

12. The ATM based VDSL communication system of claim 11 wherein:

the host digital terminal, upon receiving another channel change signal corresponding to a second data service provider, disconnects the well known VDSL PVC from the ATM permanent virtual circuit associated with the current one of the plurality of data service providers and connects the well known VDSL PVC with the ATM permanent virtual circuit associated with the second data service provider to establish a second system PVC.

13. The ATM based VDSL communication system of claim 11 wherein:

the host digital terminal includes a database of the data service providers in which the subscriber personal computer has access, wherein the host digital terminal, in response to the channel change signal, processes the database to determine if the subscriber personal computer has access to the selected one of the plurality of data service providers and, if the subscriber personal computer has access, connects the ATM permanent virtual circuit associated with the selected one of the data service providers with the well known VDSL permanent virtual circuit to establish a new system PVC.

14. The ATM based VDSL communication system of claim 11 wherein:

the CPE data device, in response to the channel change signal from the subscriber personal computer, transmits a digital storage media-command and control (DSM-CC) signal on the well known VDSL PVC to the host digital terminal, the DSM-CC signal containing a designation indicative of the selected one of the plurality of data service providers.

15. The ATM based VDSL communication system of claim 14 wherein:

the CPE data device transmits DSM-CC signal to the host digital terminal over a meta signaling channel on the well known VDSL PVC.

16. The ATM based VDSL communication system of claim 11 wherein:

each of the ATM permanent virtual circuits have associated ATM parameters.

17. The ATM based VDSL communication system of claim 11 wherein:

the subscriber personal computer and the CPE data device are connected by a 10baseT port.

18. The ATM based VDSL communication system of claim 11 further comprising:

a subscriber computer device; and

a 10baseT hub connecting the subscriber personal computer and the subscriber computer device via respective 10baseT device ports, the 10baseT hub being connected to the CPE data device via a 10baseT hub port.